Arizona Diamondbacks at San Diego Padres projection, 2026-09-25

The model gives the Arizona Diamondbacks a 50% chance of beating the San Diego Padres at Petco Park, with a projected score of AZ 4.3, SD 4.0 and about 8.3 total runs. There is a 31% chance the game is decided by one run.

Brandon Pfaadt (RHP, AZ) projects to strike out 20.1% and put on 6.9% (walks plus hit batters) of the batters he faces, and to work about 5.7 innings. Last season hitters managed a .352 xwOBA against him. Casey Mize (RHP, SD) projects to strike out 20.5% and put on 7.4% (walks plus hit batters) of the batters he faces, and to work about 4.7 innings. Last season hitters managed a .298 xwOBA against him.

AZ's bullpen has 75% of its usual relief work rested (106 weighted pitches over the last three days); Taylor Clarke, Dennis Santana are likely unavailable. SD's bullpen has 61% of its usual relief work rested (122 weighted pitches over the last three days); Mason Miller, Adrian Morejon, Yuki Matsui are likely unavailable.

Petco Park plays 8% below an average park for runs; first-pitch forecast is 75°F with 10 mph wind; Brennan Miller has the plate.

By the model's breakdown, for AZ the biggest factor is ballpark (-6% to their expected runs) and for SD the biggest factor is ballpark (-6% to their expected runs).

Win probabilityAZ 50% · SD 50%
Projected scoreAZ 4.3 – 4.0 SD
Projected total runs8.3
One-run game31%
AZ starterBrandon Pfaadt (RHP): projected 20.1% strikeouts, 6.9% walks + HBP, 5.7 innings
SD starterCasey Mize (RHP): projected 20.5% strikeouts, 7.4% walks + HBP, 4.7 innings
BallparkPetco Park (run factor -7.9%)

Arizona Diamondbacks · San Diego Padres · Brandon Pfaadt · Casey Mize