BBMI Wild Card Preview: Every Host Is Favored
Four series, twelve possible games, all of them in the higher seed’s park. BBMI’s simulations make the Astros and Yankees 61% favorites, the Braves 57% against a Phillies club running an opener, and the Padres a 55% lean over the Cubs.
October baseball arrives all at once: four Game 1s today, first pitch in Atlanta at 1:00 Central and the nightcap in San Diego at 9:00. BBMI simulated each series 60,000 times, game by game with the announced or projected starters, BBMI-built lineups and the real ballparks, and every host came out ahead. None of them came out safe.
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Phillies at Braves
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White Sox at Astros
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Red Sox at Yankees
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Cubs at Padres
These are pre-series odds, built only on what was known before each Game 1. About half of these series end in a sweep, so treat every Game 3 note below as a game that happens half the time.
Here’s the round, series by series.
Phillies at Braves: Atlanta gets the NL East rematch it wanted
The Braves won this division by six games. Now they get the team that chased them, in their park, three straight days, and BBMI gives them 57%.
Which is not the number you’d expect from the pitching. Philadelphia brings the two best starters in the entire round: Cristopher Sánchez, who rates better than 99% of qualified big-league starters on BBMI’s pitching scale, and Jesús Luzardo at 97%. (The scale weighs home runs, walks and strikeouts per batter faced by what each costs; lower is better, the median qualified starter sits at 0.378, and every percentile in this piece is against that 140-starter pool.)
Cristopher SánchezJesús LuzardoChris SaleAndrew PainterAaron NolaGrant HolmesThe catch is how the Phillies are using them. Luzardo isn’t starting Game 1, he’s opening it, a couple of innings before handing the ball to rookie Andrew Painter for the bulk of the night. Painter rates in the 31st percentile. So instead of Sale-Luzardo, a matchup of two elite lefties, Game 1 is really Chris Sale (95th percentile) against seven innings of Painter and the Philadelphia bullpen. BBMI makes Atlanta a 58% favorite in that game.
Jesús Luzardo (L, opener) + Andrew Painter (R, bulk)vs. Chris Sale (L)Cristopher Sánchez (L)vs. Tyler Mahle (R)Aaron Nola (R, reported)vs. Grant Holmes (R, reported)Game 2 is Philadelphia’s game, the only one in the round where BBMI leans to the road team, because Sánchez is simply better than anyone Atlanta can throw. Then Game 3 gets ugly on both mounds: Aaron Nola has fallen to the 23rd percentile this season, and Grant Holmes, pressed into the start after Martín Pérez hit the injured list with back inflammation, rates 14th.
If it gets there, watch the Atlanta bats. The Braves’ lineup against Nola projects at .356 BBMI matchup value, the best of any lineup in any game this round, led by Matt Olson at .439 and catcher Drake Baldwin at .437. BBMI matchup value is our measure of a hitter against one specific pitcher: the run value of everything he produces, weighted like wOBA, per plate appearance. It reads like wOBA but isn’t; compare the values only with each other. Bryce Harper, at .406 against Holmes in the same game, is the loudest bat on the other side. Ronald Acuña Jr. leads Atlanta against Luzardo in Game 1 at .337.
One honest caveat on our own number: the Phillies never announced a pitch count for Luzardo, so the two-inning opener is BBMI’s assumption. We tested it at one inning and at three, and the Braves’ series odds barely moved; 57% held either way.
White Sox at Astros: the .500 team nobody should want to play
Houston finished 81-81 and gave up more runs than it scored, the only club in this field that can say either. BBMI makes the Astros 61% favorites anyway, the co-largest in the round, because a series isn’t a season: it’s three specific games, and Houston has the better side of all three.
Hagen Smith (L)vs. AJ Blubaugh (R)Sean Burke (R, proj.)vs. Hunter Brown (R)Davis Martin (R, proj.)vs. Hayden Wesneski (R, proj.)Game 1 is October’s strangest opener: a bullpen game on both sides. Hagen Smith has one start in 18 appearances this year, AJ Blubaugh none in 64, and our simulations have them lasting 1.75 and 3.62 innings. Both bullpens will be asked for more here than in any other series, about five innings a night from Chicago’s and four and a half from Houston’s.
Hagen Smith1 start in 18 app.AJ Blubaugh0 starts in 64 app.Once real starters show up, the gap opens. Hunter Brown, announced for Game 2, is the best arm in this series at the 69th percentile. Chicago counters with Sean Burke (43rd) and Davis Martin (37th).
Hunter BrownSean BurkeDavis MartinAnd then there’s the man in the middle of the Houston order. Yordan Alvarez owns the single sharpest hitter-pitcher matchup of the entire round, .441 against Davis Martin in Game 3, and adds a .428 against Burke in Game 2. For scale, Houston’s lineup as a whole projects at .325 and .329 in those games. If this series reaches a third day, the White Sox’s season likely ends with Alvarez at the plate. Chicago’s best counterpunch is Munetaka Murakami, at .338 and .348 in the first two games.
Red Sox at Yankees: the rivalry, in October, without Judge
The oldest fight in the sport gets a playoff round, and it starts with a fact that shapes everything: Aaron Judge is not on the Yankees’ Wild Card roster. These numbers, and this lineup, are New York without its best hitter.
BBMI still makes the Yankees 61% favorites. This is also the only series where every starter is officially announced, so there are no projections to hedge.
Payton Tolle (L)vs. Cam Schlittler (R)Sonny Gray (R)vs. Max Fried (L)Ranger Suárez (L)vs. Gerrit Cole (R)The pitching splits two games to one for New York. Cam Schlittler (81st percentile) outranks Payton Tolle (74th) in Game 1, and Max Fried (74th) outranks Sonny Gray (59th) in Game 2. Boston’s edge is Game 3, where Ranger Suárez (75th) rates ahead of Gerrit Cole (68th).
Cam SchlittlerRanger SuárezPayton TolleMax FriedGerrit ColeSonny GrayThe bigger edge is at the plate. New York’s hitters project at .308, .307 and .295 in BBMI matchup value across the three games; Boston’s at .252, .263 and .279. The biggest single edge belongs to Paul Goldschmidt, at .400 against the left-hander Tolle in Game 1, nearly a hundred points above his own lineup’s average. Boston’s choice to open and close the series with lefties puts the Yankees’ best platoon bat on the field twice; he checks in at .387 against Suárez in a potential Game 3. Ben Rice (.359 against Sonny Gray) carries the middle game, and Boston’s best answers are Roman Anthony (.295 and .326 in Games 1 and 3) and Jarren Duran against Fried.
Cubs at Padres: the best team in the round is the underdog
By the numbers that usually matter, Chicago is the class of this field: 89 wins, the best run differential of the eight clubs (+0.91 a game), an offense that scored 5.25 runs a night. BBMI makes them 45% underdogs anyway, and the reason arrived this week.
Casey Mize, the Padres’ projected Game 2 starter, hit the injured list. His reported replacement, Nick Pivetta, rates in the 80th percentile, the best start San Diego has, and it turns the middle game into the Padres’ strongest of the series.
Matthew Boyd (L)vs. Michael King (R)Clay Holmes (R, proj.)vs. Nick Pivetta (R, reported)Kevin Gausman (R, proj.)vs. Walker Buehler (R, proj.)Game 3, if it comes, is one of the widest pitching mismatches of the round, and it favors Chicago. Walker Buehler has fallen to the 6th percentile, the lowest-rated starter anywhere in this field, and our simulations get him only 4.4 innings a start; Kevin Gausman sits at the 67th. The Cubs’ lineup projects at .344 against Buehler, the second-best any lineup shows this round, with Pete Crow-Armstrong at .418, and that’s why an elimination game in San Diego is a dead coin flip.
Nick PivettaKevin GausmanWalker BuehlerTy France (.327 and .345 in Games 2 and 3) and Fernando Tatis Jr. (.342 against Boyd) lead the Padres’ side; Seiya Suzuki (.305) is Chicago’s best look at Pivetta.
We tested one alternative: Randy Vásquez starting Game 3 on three days’ rest instead of Buehler adds about 2 points to San Diego’s series odds, if he pitches like his normal self. That’s a what-if, not a recommendation; short rest isn’t something our model prices, and a manager knows things a simulation doesn’t.
The season at a glance
Final 2026 regular season, MLB Stats API. The two places the season and the odds disagree are the two best stories of the round: an outscored Astros team favored at 61%, and the Cubs, best margin in the field, underdogs in San Diego.
How BBMI built these numbers
Every figure above comes from BBMI’s production MLB simulator: each series played out game by game, 20,000 times on each of three random seeds, with the real ballparks, the postseason 26-man rosters, and lineups built from each club’s recent starts against each starter’s hand. Player stats run through September 28.
A few things a reader should know about our numbers:
The odds are calibrated. Each game’s raw simulation probability is adjusted by a map fit on 2,421 real 2025 games, comparing what we predicted with what happened, and the three games are then combined, so the series and game odds reconcile. The map moves in steps, which is why the Astros and Yankees share a figure, and the Padres’ 55% sits near two steps and could fairly read 54 to 57. The raw simulator figures are in the audit table below. Simulation noise on a series is about 0.2 points; real uncertainty, from rosters, health and the model itself, is larger.
Projected and reported starters are labeled in every table. Six of the sixteen Game 2 and 3 starts are projections, three are club-reported but unannounced, and each series gets re-run as starters are named. Pitcher reporting: Padres postseason FAQ, MLB Trade Rumors on Mize, MLB.com and ESPN on Pérez and Holmes, and MLB.com and PhillyVoice on the Phillies’ opener plan and Nola.
The Phillies’ opener is our assumption. No pitch count was reported; we cap Luzardo at nine batters with Painter first out of the pen at his normal workload, and the Braves’ 57% holds whether the cap is one inning or three.
These aren’t the Playoff Pulse numbers. The Pulse prices the whole bracket nightly; these are standalone series runs, and the two won’t match exactly.
No in-game substitutions or pinch-hitters (Giancarlo Stanton’s bench role isn’t modeled), no starters pitching relief beyond the Phillies’ Game 1 plan (Crochet isn’t modeled), switch hitters are dropped from pitchers’ platoon splits (worth roughly 0.8 points in our Yankees-Rays study), defense isn’t priced, and thin-sample pitchers are shrunk toward league average. A bullpen rest rule was tested for this round but isn’t in these odds. The pitching ratings and matchup values are BBMI’s own measures.
Phillies at BravesWhite Sox at AstrosRed Sox at YankeesCubs at PadresRelated research
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This is the “we show our work” side. The Prediction Record is the other half — every call locked before the game and graded in public.