Which team wins will change the series score and alter each club's standing in the division race.

The result affects bullpen workload, short-term momentum, and possibly seeding or tiebreaker positioning later in the season.

Oakland's starting pitcher, top relievers, and middle-of-the-order hitters set the team's chances to score and prevent runs.

Arizona's ace, bullpen depth, and power hitters counter that; managers' pinch-hit and bullpen management decisions will decide late innings.

Starting pitchers' health, recent form, and pitch mix control run prevention and game length.

Weather, park factors, platoon matchups, and how quickly managers use their bullpens will swing odds during the game.

Probables and lineups posted roughly one to two hours before first pitch reveal the matchup and any late scratches.

Also monitor pitch counts, early bullpen usage, official injury reports, and weather updates; a late rain or a short outing by a starter will be decisive.