The Arizona Diamondbacks make the short trip to Petco Park to face the San Diego Padres on Saturday, September 26, with first pitch scheduled for 8:40 PM ET. This is a meaningful late-regular-season road test for Arizona, facing a divisional rival in a ballpark that has never been particularly friendly to D-backs hitters. Walker Buehler gets the ball for San Diego. Arizona's starter has not been announced. Catch the action on DBACKS.TV or Arizona Sports 98.7 FM.
Pitching Matchup: Buehler Starts for San Diego, Arizona TBD
The Padres are sending Walker Buehler to the mound, giving San Diego an established arm with major-league experience in high-stakes situations. Specific ERA and win-loss numbers for Buehler this season have not been confirmed in available data, so it would be premature to project how he grades out on the current campaign — but his pedigree warrants respect.
On the Arizona side, no probable starter has been confirmed. That's a notable storyline heading into Saturday. Whether the D-backs roll out a scheduled arm or piece together the game from the bullpen, the pitching plan will be worth monitoring right up until lineup cards are exchanged.
Keys to Watch for the Diamondbacks
- Handle Buehler early: Arizona's lineup needs to work pitch counts and put pressure on Buehler in the first time through the order, before San Diego can leverage its bullpen in the middle innings.
- Starter clarity: Who Arizona throws matters. If the D-backs are going with a bullpen game, the first few frames will define whether they can keep San Diego's offense in check long enough to manufacture runs.
- Road environment: Petco Park plays as a pitcher-friendly venue. Arizona's offense will need discipline at the plate and base-to-base efficiency — this is not a park where you sit back and wait for the three-run homer.
- Divisional positioning: NL West games in late September carry real weight. Every game between division rivals at this stage of the regular season can shift standings, and Arizona cannot afford to treat any of these as low-stakes.
Prediction
With Arizona's starter still unannounced and Buehler confirmed for San Diego, the Padres hold a clear pitching advantage on paper heading into Saturday night. That said, the D-backs have shown throughout this season that they can manufacture wins in difficult road environments. If Arizona's lineup can make Buehler work deep into counts and the bullpen holds serve, this game stays competitive into the late innings. It figures to be a tight, low-scoring affair — the kind Petco Park tends to produce. Lean Padres by a slim margin, but do not be surprised if Arizona finds a way to steal this one.
