Seattle Mariners vs St. Louis Cardinals Preview
Today's Starting Matchup
Today's starting pitching matchup features Seattle Mariners's Emerson Hancock (2-1, 2.83 ERA) against St. Louis Cardinals's Michael McGreevy (1-2, 3.29 ERA).
Both starters carry similar ERAs, setting the stage for a potential pitchers' duel. WHIP: Emerson Hancock 0.87, Michael McGreevy 0.91.
Advanced metrics: Emerson Hancock — FIP 3.94, K% 26.7%, 28.7 IP / Michael McGreevy — FIP 4.45, K% 14.3%, 27.3 IP
Team Season Comparison
2026 season record: Seattle Mariners 13-15 (.464), St. Louis Cardinals 14-12 (.538).
St. Louis Cardinals holds the edge in the season standings, though Seattle Mariners can't be counted out based on head-to-head matchups.
Recent form: Seattle Mariners on a 3-game win streak, St. Louis Cardinals on a 3-game losing streak.
Based on starting pitching, Seattle Mariners holds the edge.
Bullpen Analysis
Seattle Mariners bullpen: 13 relievers on the active roster. Key arms: Andrés Muñoz (Closer) 6.55 ERA, 18 K in 11.0 IP, Bryan Woo 3.86 ERA, 27 K in 35.0 IP.
St. Louis Cardinals bullpen: 13 relievers on the active roster. Key arms: Andre Pallante 4.26 ERA, 20 K in 25.1 IP, Dustin May 5.84 ERA, 20 K in 24.2 IP, George Soriano 4.76 ERA, 9 K in 11.1 IP.
Win Probability
Projected win probability: Seattle Mariners 50% vs St. Louis Cardinals 50%
Factors: Seattle Mariners's starter owns the lower ERA, St. Louis Cardinals's home-field advantage. Of course, baseball's inherent randomness means actual results may differ.
Key Tactical Points
Workload comparison: Emerson Hancock averages 5.7 IP per start vs. Michael McGreevy at 5.5 IP. Getting six-plus innings from the starter significantly eases the bullpen burden.