San Francisco Giants vs Seattle Mariners Starting Lineup — Saturday, Jul 18, 2026
Expected Batting Order
Official lineups not yet announced for this game. Check back closer to game time.
No lineup data available for San Francisco Giants.
No lineup data available for Seattle Mariners.
San Francisco Giants at Seattle Mariners (2026-07-18). Logan Webb vs Bryan Woo at T-Mobile Park.
Starters — Webb enters with a 3.86 ERA, 1.16 WHIP, and 100.1 innings, backed by 7.18 K/9, 2.33 BB/9, and 0.72 HR/9. His last three starts were uneven: 7 IP and 5 ER on July 8, 3 IP and 7 ER on July 3, and 7 IP with 0 ER on June 27. The recent trend is up, but the game log shows volatility after one dominant outing. Woo carries a 4.23 ERA and 1.07 WHIP across 104.1 innings with stronger bat-missing and command indicators at 8.8 K/9 and 1.73 BB/9, plus 0.86 HR/9. His last three starts were 5 IP and 3 ER on July 7, 6.1 IP and 2 ER on June 30, and 4 IP with 5 ER on June 24. The listed trend is down, though two of his last three outings were steadier than the ERA suggests.
Teams — San Francisco has the better offensive profile on these numbers, posting a .730 OPS, .256 average, and 402 runs. The Giants are also 6-4 over their last 10, but their pitching staff has been less reliable overall with a 4.42 team ERA and 1.36 WHIP. Seattle has a lighter offensive baseline with a .686 OPS, .228 average, and 392 runs, and the Mariners are 3-7 in their last 10. The counter is run prevention: Seattle owns a 3.64 team ERA and 1.19 WHIP, clearly stronger than San Francisco’s staff marks. Bettors are looking at a matchup where the road lineup has been more productive, while the home club brings the cleaner full-team pitching foundation.