Preview for Friday, September 18, 2026. Schedule and player information can change.
Seattle Mariners at Colorado Rockies
The Mariners head to Colorado carrying the stronger overall pitching numbers as a team, with a 4.09 FIP and 4.21 ERA compared to the Rockies' 4.92 FIP and 5.62 ERA. On the other side of the ball, Colorado's offense shows a slightly better wOBA at 0.321 against Seattle's 0.303, suggesting the Rockies lineup has been a bit more productive than Seattle's this season even though their pitching staff has struggled to keep runs off the board.
Bryan Woo takes the mound for Seattle and brings strong individual numbers to the matchup, posting a 3.88 ERA and a 3.38 FIP over approximately 162.3 innings pitched, both figures notably better than his own team's aggregate marks and far ahead of Colorado's staff-wide production. No starting pitcher information is available for the Rockies in this preview, which limits a direct pitcher-versus-pitcher comparison, but Woo's individual profile stands out against the general run-prevention gap already separating these two clubs.
Several roster notes are attached to this game. Tyler Bell is listed as 'Out' for the Rockies, while Brody Brecht and McCade Brown are both listed on the 60-Day IL for Colorado. For Seattle, Matt Brash, Nick Davila, and Brennen Davis are each listed on the 60-Day IL. Taken together, the team-level pitching figures and Bryan Woo's individual performance point toward Seattle holding the more favorable numbers heading into this matchup, even with Colorado's offense showing a modest wOBA advantage.
Statistical scope: MLB Stats API; 2026 regular season season-to-date; exact statistical through-date not supplied.
No rated WP selection is available in this article snapshot.
WP home-run candidate for Mariners: Lazaro Montes. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.
WP home-run candidate for Rockies: Adael Amador. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.
Predictions are uncertain; no outcome is guaranteed. Check the picks page for the latest available selections.