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MLB Predictions for September 30, 2026: Every Game Previewed

2026-09-30 · Posted at 9:40 AM ET

Preview for Wednesday, September 30, 2026. Schedule and player information can change.

Philadelphia Phillies at Atlanta Braves

Philadelphia's trip to Atlanta pits Cristopher Sánchez against Tyler Mahle in an interesting contrast of workload and form. Sánchez has been the picture of durability and effectiveness, working about 207.0 innings with a 2.91 ERA and a 2.87 FIP, both markedly better than Mahle's 3.99 ERA and 4.06 FIP across roughly 149.0 innings. On raw pitching production, Sánchez holds a clear edge over his counterpart.

Offensively the two clubs are close, with the Braves posting a 0.311 wOBA against the Phillies' 0.307, a small but real advantage for Atlanta's lineup. Run-prevention marks for the teams tell a more mixed story: Philadelphia's staff ERA of 4.04 is worse than Atlanta's 3.63, yet the Phillies' team FIP of 3.86 is better than the Braves' 4.20, suggesting the underlying peripheral numbers favor Philadelphia's pitching staff overall even though the Braves' earned run figures look better on the surface.

Atlanta's injury report includes Rayven Antonio and Starlyn De La Cruz, both listed on the 60-Day IL, and Bryce Elder, listed on the 15-Day IL, while Philadelphia has Adolis Garcia, Connor Gillispie, and Brad Keller all listed on the 60-Day IL. Between the two rotations, Sánchez's superior ERA and FIP over a much larger innings sample gives Philadelphia the more convincing pitching case, while Atlanta's edge in team wOBA and staff ERA keeps this from being one-sided.

Statistical scope: MLB Stats API; 2026 regular season season-to-date; exact statistical through-date not supplied.

WP selection: Braves +1.5. Confidence: Slight Lean.

The selection is supplied separately by WP. The comparisons above do not establish why the model made this selection.

WP home-run candidate for Braves: Ronald Acuña Jr.. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

WP home-run candidate for Phillies: Bryce Harper. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

Chicago White Sox at Houston Astros

Chicago's Sean Burke and Houston's Hunter Brown present a fairly even pitching matchup on the surface. Burke has worked about 172.3 innings with a 3.34 ERA and 3.69 FIP, while Brown has thrown roughly 107.3 innings with a slightly better 3.19 ERA but a higher 3.84 FIP. The FIP gap favors Burke, while the ERA gap favors Brown, making the individual starter comparison close.

Offensively, Houston's 0.317 wOBA edges out Chicago's 0.316, essentially a wash between the two lineups. On the run-prevention side for the full staffs, the White Sox look stronger, with a team ERA of 4.12 and FIP of 4.32 compared to the Astros' 4.45 ERA and 4.59 FIP, giving Chicago the better marks in both categories.

Houston's injury list includes Brandon Bielak, Jax Biggers, and Drew Brutcher, all listed on the 60-Day IL, while Chicago has Brooks Baldwin and Aldrin Batista listed on the 60-Day IL and Joey Bart listed on the 10-Day IL. With comparable offensive wOBA figures and the White Sox holding better team ERA and FIP marks, the staff-level numbers lean toward Chicago.

Statistical scope: MLB Stats API; 2026 regular season season-to-date; exact statistical through-date not supplied.

WP selection: White Sox +1.5. Confidence: Slight Lean.

The selection is supplied separately by WP. The comparisons above do not establish why the model made this selection.

WP home-run candidate for Astros: Lucas Spence. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

WP home-run candidate for White Sox: Randal Grichuk. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

Boston Red Sox at New York Yankees

This matchup has the Boston Red Sox visiting the New York Yankees. The listed start is 8:00 PM ET.

Sonny Gray, the listed starter for the Boston Red Sox, has an ERA of 2.72 and a WP-calculated FIP of 3.54 in the available pitching data, covering approximately 169.0 innings. Max Fried, the listed starter for the New York Yankees, has an ERA of 2.80 and a WP-calculated FIP of 2.72 in the available pitching data, covering approximately 112.7 innings. These are schedule listings, not independent confirmation of the final starters.

Team statistics for the Boston Red Sox show a WP-estimated wOBA of 0.312, a WP-estimated FIP of 3.72 and an ERA of 3.54. Team statistics for the New York Yankees show a WP-estimated wOBA of 0.312, a WP-estimated FIP of 3.78 and an ERA of 3.24.

Statistical scope: MLB Stats API; 2026 regular season season-to-date; exact statistical through-date not supplied.

WP selection: Yankees moneyline. Confidence: Confident.

The selection is supplied separately by WP. The comparisons above do not establish why the model made this selection.

WP home-run candidate for Red Sox: Wilyer Abreu. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

WP home-run candidate for Yankees: Luis García Jr.. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

Chicago Cubs at San Diego Padres

Chicago sends Kevin Gausman to face San Diego's Nick Pivetta in a matchup with a notable innings gap between the two starters. Gausman has worked about 177.7 innings with a 4.51 ERA and a better 3.81 FIP, while Pivetta has thrown just roughly 34.7 innings but with sharper marks across the board, a 2.86 ERA and 2.28 FIP. Pivetta's rate stats are considerably stronger, though over a much smaller sample than Gausman's.

Chicago's offense stands out with a 0.333 wOBA, well ahead of San Diego's 0.313, giving the Cubs a clear advantage at the plate. On the pitching side, the Padres' staff has been more effective overall, with a 3.99 ERA and 4.27 FIP compared to the Cubs' 4.12 ERA and 4.67 FIP, so San Diego holds the better team pitching marks even as Chicago's lineup carries the higher offensive output.

San Diego's injury list includes Miguel Andujar on the 10-Day IL and both Humberto Cruz and Yu Darvish listed as Out, while Chicago has Tyler Austin, Brandon Birdsell, and Ben Brown all listed on the 60-Day IL. Between a Cubs offense that leads in wOBA and a Padres pitching staff that leads in both ERA and FIP, the two sides bring different strengths into this one, with San Diego's Pivetta offering the sharpest individual pitching marks on the mound.

Statistical scope: MLB Stats API; 2026 regular season season-to-date; exact statistical through-date not supplied.

WP selection: Padres moneyline. Confidence: Confident.

The selection is supplied separately by WP. The comparisons above do not establish why the model made this selection.

WP home-run candidate for Cubs: Michael Conforto. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

WP home-run candidate for Padres: Ty France. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.

Predictions are uncertain; no outcome is guaranteed. Check the picks page for the latest available selections.

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