MLB: What to watch on September 9, 2025

• 09 September 2025
• mlbw

Here are today's MLB games, ordered by watchability, based on how interesting the teams and starting pitchers look. Higher is better. For more information, read this post.

Notes:

• Pitcher 'no data': Pitchers only have a pNERD score once they've started at least one game and have at least 20 innings pitched. I also show 'no data' when I can't correctly link a starting pitcher with their stats.
• Generated by the mlb-watchability project on GitHub.

Detail

New York Mets @ Philadelphia Phillies, 3:45p

Summary

Top gNERD on the board, and it shows: Mets–Phillies pairs Manaea’s miss-bats with Suárez’s contact denial, plus real NL East stakes. Philly’s lineup is thinned by Trea Turner’s hamstring strain, but a seven‑game cushion makes this a tidy barometer for both clubs. With a gNERD of 17.77 (higher than 95% of historical games and tops among today’s matchups), the appeal is equal parts stuff and context. The Mets carry today’s highest tNERD, fueled by top-tier barrel rate and real run creation, now set against Ranger Suárez’s tidy run prevention—around a 3.05 FIP, ~17% K‑BB%, and stingy home-run rate that tends to sand down thunder. On the other side, Sean Manaea’s pNERD pops (xFIP‑ 77, quick pace), and his recent 37:5 K:BB hints that the skills are intact even as homers and BABIP have bloodied the box score; if the ball stays in, the fireworks come from the whiffs. Turner’s status (MRI pending) likely elevates Edmundo Sosa and shifts pressure to Bryce & Co., nudging the watch toward whether Suárez can mute New York’s barrels and whether Manaea’s underlying run‑prevention finally matches the peripherals.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5.)

Recommended broadcast: New York Mets (3.32 rating)

New York Mets

Philadelphia Phillies

Sean Manaea, New York Mets

Ranger Suárez, Philadelphia Phillies

Go back to top of page

Detroit Tigers @ New York Yankees, 4:05p

Summary

A top-tier watch on the slate: gNERD 13.05 with two lively offenses and a Bronx setting that punishes mistakes. All-Star comeback arm Casey Mize meets sweeper-savvy tinkerer Will Warren in a matchup that promises more contact theater than whiff porn.

Mize’s mid-pack pNERD (5.43) hides a sturdier foundation—near-league-average run prevention by xFIP-—and the five-pitch mix that earned him a midseason All-Star nod, a neat narrative layer for a pitcher who fought through injuries to reclaim form. Warren’s pNERD (4.68) understates the underlying: FanGraphs pegs him around a 3.6 xFIP (xFIP- ~86), and the Yankees have leaned on his availability as he takes the ball every fifth day, with improved second-half stability. NERD’s team inputs explain the watchability bump: Detroit brings better-than-average contact quality and baserunning, while New York’s bats are a barrel factory; balls in play should matter. The twist comes late: the Tigers’ bullpen grades shakier than the Yankees’, tilting high leverage toward the home side if it’s tight. With both tNERDs above today’s average and a gNERD that sits in the historical top quartile, this is the rare power-versus-plan game—New York’s heavy bats versus Mize’s splitty solutions, and Warren’s shape-shifting breaker versus Detroit’s launch-angle revival.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7.)

Recommended broadcast: Detroit Tigers (2.74 rating)

Detroit Tigers

New York Yankees

Casey Mize, Detroit Tigers

Will Warren, New York Yankees

Go back to top of page

Chicago Cubs @ Atlanta Braves, 4:15p

Summary

Rookie sizzle meets rehab mystique: Cade Horton, fresh off five no-hit innings against these Braves, squares up with Spencer Strider, who was scratched for extra rest and now gets the ball with Atlanta hoping the ace version shows up. Add in Chicago’s track-meet baserunning and Atlanta’s wobbly bullpen, and you’ve got a watchable stress test for both dugouts.

At a gNERD of 12.62, this sits just above the 75th percentile historically and well above today’s average, and the shape of the score makes sense: Cubs’ tNERD is carrying the day thanks to elite run creation on the bases and strong defense, while Atlanta’s tNERD lags amid offensive sputters and bullpen churn. Chicago has been one of the sport’s best baserunning teams by BsR, a headache tonight for a Braves catching group now missing Sean Murphy.

On the mound, the pNERD edge favors Horton (6.89), whose recent run-prevention binge includes that near-combined no-no; his underlying xFIP is closer to average, but his pace and power play on screen. Strider’s xFIP has hovered around league average, yet the story is whether the whiffs return without the fastball getting torched; Atlanta gave him extra rest and still points him to this start. If you like contrasts—Cubs’ chaos on the bases vs. Strider’s bat-miss pedigree—this is your window.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7.)

Recommended broadcast: Chicago Cubs (3.01 rating)

Chicago Cubs

Atlanta Braves

Cade Horton, Chicago Cubs

Spencer Strider, Atlanta Braves

Go back to top of page

Milwaukee Brewers @ Texas Rangers, 5:05p

Summary

Freddy Peralta vs. Jack Leiter gives this gNERD 12.24 matchup real “clear-your-queue” energy: Milwaukee’s high-octane baserunning collides with a young Ranger who’s finally weaponized a new two-seamer and “kick” change. Texas just blanked the Brewers 5-0, but now Leiter’s recent 19 IP/25 K/5 BB run meets a Milwaukee lineup that sits near the top of MLB in runs and backs it with speed, gloves, and a deep pen.

The NERD math likes the teams (avg tNERD 7.74) more than the arms (avg pNERD 4.51), but Peralta’s expected assignment meaningfully upgrades the pitching side: beyond the scoreless streak he carried into last week, his underlying run prevention plays via a FIP around 3.6 even without gaudy barrels allowed. Leiter’s watchability is up because the stuff is firm and more diverse now, and his recent whiff-and-zone combo has finally translated into results. Milwaukee’s tNERD heft tracks: top-tier baserunning (BsR ~+14), strong defense, and a bullpen that shortens games; that’s entertainment even when the barrels aren’t booming. Texas’ defense and run prevention keep it tidy, but a thin lineup — with Corey Seager and Marcus Semien sidelined and Adolis García banged up — suppresses the chaos quotient. Net: above-today-average watchability with strikeouts, stolen bases, and a legitimate Peralta–Leiter development subplot.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.)

Recommended broadcast: Milwaukee Brewers (2.66 rating)

Milwaukee Brewers

Texas Rangers

Jack Leiter, Texas Rangers

Go back to top of page

Houston Astros @ Toronto Blue Jays, 4:07p

Summary

A high-groove watch: elite run prevention meets a suddenly contact-happy lineup in a park that now manufactures singles like it’s a cottage industry. And yes, probables have shifted to Framber Valdez vs. José Berríos, which only helps the cause.

With a gNERD of 12.09, this sits around the 75th percentile of historic games, and the reasons track: Toronto’s offense has reinvented itself around bat-to-ball and patience, posting MLB’s lowest K% and riding a real on-base jump, a tricky fit against Valdez’s grounder-heavy, FIP/xFIP-in-the-3s profile. Add in that Rogers Centre’s post-renovation run environment suppresses homers but boosts singles and overall hits, which tilts the script toward long rallies, not three-run haymakers. Houston’s watchability leans bullpen-and-glove more than barrel rate right now, and the lineup has been sputtering of late, which raises the tension around every Valdez two-seamer that leaks over the inner third. Toronto’s defense has also graded among the better units this year — Kirk’s receiving and a rangy outfield clean up contact when Berríos pitches to it — so balls in play should be contested. If the Astros do pivot back to Luis Garcia, note he was only just activated this month — intriguing, but less certain — whereas Valdez-Berríos promises a cleaner, higher-floor watch.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8.)

Recommended broadcast: Toronto Blue Jays (3.10 rating)

Houston Astros

Toronto Blue Jays

Luis Garcia, Houston Astros

No detailed stats available

Go back to top of page

Kansas City Royals @ Cleveland Guardians, 3:40p

Summary

Two rookie lefties, two elite bullpens, and a playoff tiebreaker vibe: expect tension more than taters. With a gNERD of 11.02 (above today’s average), this grades as a “watch the chess match” game rather than a slugfest.

Cleveland’s Joey Cantillo brings the better pNERD and supporting skills; as a starter he’s sitting on a mid‑3s FIP/xFIP with a solid K‑BB% and has allowed exactly one run in each of his last three outings, finally clearing six frames last time out. Kansas City’s Noah Cameron is craft-over-velocity and already beat these Guardians in July, when he wriggled out of a bases‑loaded first and spun five scoreless before turning it over to a strong pen. Both lineups lean “pitcher-friendly” anyway; recent previews peg them near the bottom in run creation, which fits today’s tNERD inputs (light barrels, good gloves).

Add Cleveland’s late‑inning edge—Cade Smith has closed recently and reached 10 saves over the weekend—and the margins shrink further. The stakes are real, too: the clubs are neck‑and‑neck in the Wild Card scrum, giving every baserunning decision and defensive play extra consequence.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.)

Recommended broadcast: Cleveland Guardians (2.16 rating)

Kansas City Royals

Cleveland Guardians

Noah Cameron, Kansas City Royals

Joey Cantillo, Cleveland Guardians

Go back to top of page

St. Louis Cardinals @ Seattle Mariners, 6:40p

Summary

If you like contrasts, this one lines up cleanly: a high‑pNERD command artist in George Kirby versus a sturdier‑than‑flashy Matthew Liberatore, with postseason leverage humming in the background. Add Seattle’s big‑fly offense and leaky gloves against St. Louis’s sure‑handed defense and deep bullpen, and you’ve got a solidly watchable, above‑average gNERD tilt.

Kirby (pNERD 7.58) is the draw: velocity, strike‑throwing, and an xFIP- that supports real bat‑missing skill, even if his 2025 has included efficiency hiccups and a shorter leash; reports have tied some of that wobble to an altered arm slot after early‑season shoulder inflammation. Liberatore (pNERD 4.51) brings a deep mix that played better early, then leveled off; his recent splits hint at a mild September uptick, making his floor higher than his fame. Seattle supplies theater via thunder — 200 team homers, with Cal Raleigh cresting 50 — but also ranks near the bottom in Statcast’s Outs Above Average, which keeps games messy. St. Louis’s bats are lighter, yet its fielding and bullpen quality (per tNERD inputs) can tilt late innings toward drama rather than slugfest. And a small subplot: Willson Contreras is eligible to return from suspension, nudging the Cards’ lineup closer to whole.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8, 9.)

Recommended broadcast: Seattle Mariners (2.35 rating)

St. Louis Cardinals

Seattle Mariners

Matthew Liberatore, St. Louis Cardinals

George Kirby, Seattle Mariners

Go back to top of page

Boston Red Sox @ Athletics, 7:05p

Summary

Lineup-forward baseball in a livelier Sacramento setting: two mid-tier starters, a homer‑friendly backdrop, and bullpens waiting to matter. Bonus novelty: “Athletics” games at Sutter Health Park beat the old Coliseum for carry, which nudges watchability.

With a gNERD of 10.33, this sits near the middle of today’s slate but a tick above the historic average; that’s almost entirely the tNERD story (BOS 8.77, ATH 6.87) rather than the pNERD (both starters ~2.5). Boston’s glove-and-pen profile has graded well this year and their overall run prevention (3.73 team ERA) stacks up better than the A’s (4.80), so late innings tilt toward the visitors. Dustin May brings deadline-trade intrigue and mid‑90s life but also volatility; since joining Boston he’s mixed a gem in Houston with several shorter, walk‑spotted turns. Jeffrey Springs’ surface line is steadier (4.13 ERA, 1.18 WHIP), yet the A’s have wrestled with his first‑inning stumbles—catnip for a Sox lineup that can barrel when it puts the ball in play. Sacramento adds punch: the A’s have leaned into power (team HR edge and multiple 20‑plus bats like Langeliers and Soderstrom), making contact‑quality the main entertainment driver here.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7.)

Recommended broadcast: Boston Red Sox (2.47 rating)

Boston Red Sox

Athletics

Dustin May, Boston Red Sox

Jeffrey Springs, Athletics

Go back to top of page

Pittsburgh Pirates @ Baltimore Orioles, 3:35p

Summary

Kyle Bradish just returned from Tommy John and struck out 10 in his first start back; if that bite shows up again, this leans pitching-forward. Opposite him, rookie Mike Burrows brings mid-90s heat, a four-pitch mix, and a quick tempo that can quiet Baltimore’s uneven bats.

The gNERD sits at 9.54—slightly below today’s average—but the draw is the arms (avg pNERD 5.97). Burrows’ 6.95 reflects a 95.5 mph fastball, decent xFIP- (96), and brisk pace; the Pirates have also been managing his innings, which nudges the “efficiency watch.” Bradish’s listed pNERD is zero only because the model lacks current inputs; on the field, his return outing looked like pre-injury Bradish.

The team side (avg tNERD 3.56) dampens things: Pittsburgh’s offense has been underwater by batting runs (−111), while Baltimore’s has been closer to average but hardly fearsome this year, and the O’s bullpen has leaked runs. That said, Bradish’s comeback offers some genuine intrigue for a club trudging through a down season, and Burrows’ tempo keeps the remote parked. If you’re prioritizing, slot this as a mid-card watch with real upside if the starters carry their weight.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5.)

Recommended broadcast: Baltimore Orioles (2.82 rating)

Pittsburgh Pirates

Baltimore Orioles

Mike Burrows, Pittsburgh Pirates

Kyle Bradish, Baltimore Orioles

No detailed stats available

Go back to top of page

Cincinnati Reds @ San Diego Padres, 6:40p

Summary

If Michael King’s activation holds, this becomes a bullpen-forward chess match the Padres are built to win, with San Diego’s late-inning machine poised to smother a light-on-thump Reds lineup. The gNERD (9.23) sits mid-card, but King’s return and the Friars’ leverage pen nudge the watchability up a notch.
King’s underlying indicators have played in Petco: a home xFIP around 3.0 with strong K-BB splits, especially versus lefties, fits a “five-and-dive, hand it to the ‘pen” blueprint; if plans change, Nestor Cortes is the alternative listed by some outlets, which only heightens the likelihood of a quick hook and heavy relief usage.
Across the diamond, Zack Littell is a zone-filling, whiff-light righty (xFIP- ~103) whose contact profile has included too many homers this year, a risky combo against San Diego’s patient core even in Petco.
What really sells this: the Padres’ bullpen remains elite despite losing All-Star Jason Adam, now reinforced by 101-mph closer Mason Miller and still posting eye-popping run prevention in September.
Cincinnati’s best counter is chaos on the bases, where they rank among MLB’s top theft artists; if they can force the pads off the gas, this stays tight.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8, 9.)

Recommended broadcast: San Diego Padres (3.47 rating)

Cincinnati Reds

San Diego Padres

Zack Littell, Cincinnati Reds

Michael King, San Diego Padres

Go back to top of page

Arizona Diamondbacks @ San Francisco Giants, 6:45p

Summary

Robbie Ray’s comeback meets Zac Gallen’s late‑summer course correction—a solid mid‑card watch with real upside. It isn’t today’s headliner (gNERD 8.61 vs the 10.49 average), but a bullpen mismatch and a newly punchy SF lineup keep it interesting. Ray has pitched like an All‑Star stabilizer, with peripherals to match (3.62 FIP/3.80 xFIP), and the mid‑season nod backs the quality, not just the vibe. Gallen’s pNERD is middling, yet his recent run has been meaningfully better than his season line—think sharper fastball command and cleaner K/BB—even if the full‑year FIP still reads 4.57. Arizona’s watchability leans on competent bat/ball skills and real baserunning value, but the bullpen grades out as a liability; San Francisco’s relief group, by contrast, has been a season‑long plus and projected strength, tilting late‑inning leverage their way. As for storylines, the Giants’ bats have been lively—Rafael Devers and Willy Adames included—and they just launched five homers in the opener, even if that burst isn’t predictive of tonight. Net: average pitcher NERDs, decent team NERDs, and some timely pop make this a “check in early, stay if it’s close” kind of game.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8.)

Recommended broadcast: San Francisco Giants (3.20 rating)

Arizona Diamondbacks

San Francisco Giants

Zac Gallen, Arizona Diamondbacks

Robbie Ray, San Francisco Giants

Go back to top of page

Minnesota Twins @ Los Angeles Angels, 6:38p

Summary

Tune in for Zebby: a top-of-the-day pNERD arm with real gas meets an Angels lineup that swings hard and a bullpen that springs leaks. If you like early whiffs and late weirdness, this one has both.

gNERD is a middling 8.49 for the slate, but Matthews (pNERD 9.57) carries the watchability, pairing a quick tempo with an xFIP- in the mid‑80s and recent 97–98 mph readings; he just spun six innings of one-run ball last week. Across the field, Hendricks (pNERD 1.40) brings low whiff rates and a contact-first profile that’s been volatile, which tends to invite traffic. The Angels still have thump — Jo Adell’s 30+ homers headline a club with a strong barrel rate — and Mike Trout recently returned after a brief absence for a skin infection, though they’re down Nolan Schanuel and Jorge Soler on the IL. If it tilts late, the contrast is stark: Los Angeles’ relief corps has sat near the bottom by ERA and blown saves, while Minnesota can hand it to Jhoan Duran, the AL’s May Reliever of the Month. In short: come for the Zebby test, stay to see if the Angels’ barrels can crack it before the Twins’ bullpen shuts the door.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8, 9.)

Recommended broadcast: Los Angeles Angels (2.59 rating)

Minnesota Twins

Los Angeles Angels

Zebby Matthews, Minnesota Twins

Kyle Hendricks, Los Angeles Angels

Go back to top of page

Colorado Rockies @ Los Angeles Dodgers, 7:10p

Summary

If you’d like to watch a mismatch dressed up as a pitching lab, this is it: Emmet Sheehan’s whiffs and mid‑90s ride meet a Rockies lineup that hasn’t exactly punished mistakes. The gNERD of 7.63 sits in the lower third of today’s slate, but Sheehan’s pNERD (7.65) and the Dodgers’ tNERD edge keep it watchable. Sheehan’s underlying line is the hook—above‑average bat-missing (xFIP‑ 91, strong SwStr) with the fastball back in the 95–97 range—and he’s been taking regular turns, including 6 Ks his last time out against Pittsburgh, even if the result didn’t flatter him. On the other side, Germán Márquez brings a far shakier pNERD (1.39), a 123 xFIP‑, and the added question mark of midseason right‑biceps tendinitis that shelved him earlier this summer. The Dodgers don’t need much help: their lineup is carrying real thump, with Mookie Betts surging of late and Shohei Ohtani still looming, while LA’s bullpen grades + by our model. If you sample selectively, tune in to see whether Sheehan turns this into a teaching clinic.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4.)

Recommended broadcast: Los Angeles Dodgers (2.45 rating)

Colorado Rockies

Los Angeles Dodgers

Germán Márquez, Colorado Rockies

Emmet Sheehan, Los Angeles Dodgers

Go back to top of page

Tampa Bay Rays @ Chicago White Sox, 4:40p

Summary

Adrian Houser’s reunion tour hits the South Side, and the Rays’ track team versus the Sox’s butterfingers is a pretty clear recipe for entertainment. Even with modest gNERD, a revenge-start plus rampant baserunning gives this a pulse.

At 7.33, the gNERD sits below today’s average, dragged down by low pNERD, but the Rays’ stronger tNERD (6.79) props it up while Chicago’s (2.94) does the opposite. Houser is lined up for Tampa Bay after being traded from these very Sox; he’s mixed results with the Rays but is coming off a season-high eight strikeouts, and the “ex-teammates” subplot adds bite.

Yoendrys Gómez has been a late-season experiment as a starter—capable of a clean five with whiffs, but volatile enough that a negative pNERD feels earned—so the mound matchup leans Rays on stability more than sizzle.

If you want action, Tampa Bay supplies it: they lead the league in steals, and Chicago’s bottom-tier defense is an inviting canvas for chaos; add in a Rays staff that limits traffic better than most and it’s a style contrast worth a look. The Sox are also down Luis Robert Jr., thinning a lineup that already skews light.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11.)

Recommended broadcast: Tampa Bay Rays (2.27 rating)

Tampa Bay Rays

Chicago White Sox

Yoendrys Gómez, Chicago White Sox

Go back to top of page

Washington Nationals @ Miami Marlins, 3:40p

Summary

Today’s lowest gNERD comes with a curiosity clause: a green Marlins starter still auditioning and a Nats lefty trying to arrest a slide. Expect more “hmm” than high drama, but there are kernels worth cracking.

With a 6.55 gNERD—lowest on today’s slate and well below the historic median—team watchability has to carry this, and only Miami’s youth-tilted tNERD (5.12) provides lift over Washington’s thin 1.12. Pitching isn’t the hook: Mitchell Parker’s pNERD is 1.86, dragged by a rough xFIP- (122) and recent bouts of dip-and-rally starts; even local reports flagged velocity falloff that’s turned fourth innings into problem zones. Adam Mazur is the wild card: newly minted in Miami’s patchwork rotation after injuries and churn, he just faced these Nats and wore 10 hits and five runs across six, including a James Wood two-run shot—useful, immediate context for how Washington might attack him again. Miami’s staff chaos (Max Meyer, Braxton Garrett sidelined) explains Mazur’s look, but it doesn’t juice the spectacle. Net: modest pNERDs, bottom-quartile bats by the NERD components, and a rematch angle—watchable if you’re scouting kids or tracking Parker’s adjustments, not if you’re chasing sizzle.

(A model from OpenAI generated the above text using instructions, the NERD scores, and these sources: 1, 2, 3, 4, 5.)

Recommended broadcast: Washington Nationals (2.00 rating)

Washington Nationals

Miami Marlins

Mitchell Parker, Washington Nationals

Adam Mazur, Miami Marlins

No detailed stats available

Go back to top of page

• ← Previous
  MLB: What to watch on September 8, 2025
• Next →
  MLB: What to watch on September 10, 2025