The San Diego Padres host the San Francisco Giants on Sunday, August 2, 2026, at Petco Park with first pitch scheduled for 4:10 PM ET. Michael King gets the ball for San Diego against Giants right-hander Landen Roupp in what shapes up as a compelling NL West divisional matchup. With the rivalry between these two clubs carrying weight at any point in the season, this one has stakes worth paying attention to — the Padres have the lineup card set and the home crowd behind them at one of the best parks in baseball.

Probable Pitchers: Michael King vs. Landen Roupp

Michael King draws the assignment for the Padres, and that is a name San Diego fans have come to trust on the mound. King has established himself as a reliable arm in this rotation, and his ability to generate weak contact and work deep into games makes him a strong fit for a divisional start at home.

Landen Roupp gets the nod for San Francisco. The Giants right-hander has worked his way into their rotation and will look to give his club a chance in enemy territory. Roupp relies on command and pitch mix to navigate lineups, and he will face a Padres order that has genuine depth from top to bottom.

San Diego Padres Starting Lineup

• Luis Rengifo, LF
• Jake Cronenworth, 2B
• Manny Machado, DH
• Ty France, 1B
• Jackson Merrill, CF
• Luis Campusano, C
• Gavin Sheets, RF
• Xander Bogaerts, SS
• Sung-Mun Song, 3B

San Francisco Giants Starting Lineup

• Luis Arraez, 2B
• Bryce Eldridge, DH
• Heliot Ramos, LF
• Rafael Devers, 1B
• Jung Hoo Lee, RF
• Willy Adames, SS
• Drew Cavanaugh, C
• Drew Gilbert, CF
• Osleivis Basabe, 3B

Keys to Watch at Petco Park

Machado and France in the Heart of the Order

Manny Machado batting third and Ty France at cleanup gives San Diego a legitimate middle-of-the-order punch. If Rengifo and Cronenworth can get on base ahead of them, this lineup has the potential to do real damage against Roupp early. The Padres need those two bats to carry their weight in a game where run support for King could be the deciding factor.

Jackson Merrill Holding Down Center

Merrill batting fifth and playing center field is a combination San Diego is banking on. His two-way presence — bat and glove — makes him one of the more interesting players to track in this lineup. The Giants have outfield depth of their own with Ramos and Jung Hoo Lee, so the outfield battle on both sides is worth watching.

The Devers Factor

Rafael Devers batting cleanup for the Giants is the primary threat King must navigate. Devers is a dangerous left-handed bat who can change a game in a single at-bat. How King approaches that matchup — and whether he gets help from Campusano behind the plate in sequencing pitches — will go a long way in determining the outcome.

Prediction

Petco Park gives the Padres an edge, and Michael King is the kind of starter who makes the most of home comforts. If the lineup can provide three or more runs of support, King has the profile to hold San Francisco's offense in check long enough for the bullpen to close it out. Padres win, 4-2.