Today's starting pitching matchup features San Francisco Giants's Landen Roupp (7-9, 4.12 ERA) against San Diego Padres's Michael King (6-7, 3.38 ERA).

Both starters carry similar ERAs, setting the stage for a potential pitchers' duel. WHIP: Landen Roupp 1.26, Michael King 1.17.

Advanced metrics: Landen Roupp — FIP 3.38, K% 24.0%, 113.7 IP / Michael King — FIP 4.12, K% 21.2%, 125.3 IP

2026 season record: San Francisco Giants 47-64 (.423), San Diego Padres 57-54 (.514).

San Diego Padres holds the edge in the season standings, though San Francisco Giants can't be counted out based on head-to-head matchups.

Run differential: San Francisco Giants -52, San Diego Padres -13. Both clubs are evenly matched in run production.

Recent form: San Francisco Giants on a 2-game losing streak, San Diego Padres on a 2-game win streak.

Based on starting pitching, San Diego Padres holds the edge.

San Francisco Giants bullpen: 13 relievers on the active roster. Key arms: Adrian Houser 4.71 ERA, 61K in 91.2IP, Caleb Kilian (Closer) 4.36 ERA, 51K in 43.1IP, Carson Whisenhunt 6.63 ERA, 16K in 19.0IP.

San Diego Padres bullpen: 13 relievers on the active roster. Key arms: Adrian Morejon (Setup) 3.14 ERA, 64K in 57.1IP, Bradgley Rodriguez (Setup) 2.28 ERA, 49K in 47.1IP, Germán Márquez 4.67 ERA, 36K in 52.0IP.

Projected win probability: San Francisco Giants 46% vs San Diego Padres 54%

Factors: San Diego Padres's starter owns the lower ERA, San Diego Padres's home-field advantage. Of course, baseball's inherent randomness means actual results may differ.

Workload comparison: Landen Roupp averages 5.4 IP per start vs. Michael King at 5.7 IP. Getting six-plus innings from the starter significantly eases the bullpen burden.

Michael King has allowed 13 HR this season — a concern against a lineup with extra-base power.

Petco Park is classified as a pitcher-friendly park. Starter endurance becomes even more critical.