Seattle Mariners vs Colorado Rockies

Seattle holds a clear pitching and form edge over a Colorado team that is 1-9 in their last 10 and on a 3-game losing streak. Quintana (ERA 5.27, WHIP 1.51 in just 41 IP) is a liability, while Miller (ERA 4.19, WHIP 1.16) is a legitimate arm. Seattle's L5 offense has exploded (6.0 R/G, .816 OPS) with Arozarena sizzling (🔥, .858 OPS L14). The Rockies' ERA of 5.55 is the worst in baseball and their schedule collapse is severe. Note that Seattle's split vs LHP is weak (.651 OPS) — a real concern against Quintana — but Colorado's overall dysfunction and Quintana's poor numbers override that factor. -155 is steep but justified by the mismatch.