Seattle Mariners vs Colorado Rockies Betting Picks & Predictions
Sugano's recent struggles strengthen Seattle's case, but Anderson's vulnerability leaves questions at a -155 moneyline.
Recent starts favor Seattle
The Seattle Mariners visit the Colorado Rockies on September 20 in this 2026 MLB matchup, with Kade Anderson and Tomoyuki Sugano listed as the starters. SportsJaw prices Seattle at -154 and Colorado at +138 on the moneyline.
Anderson has the stronger recent numbers. Across his last five starts, the Seattle left-hander averaged five innings, 5.6 hits allowed and three earned runs. Sugano, Colorado's right-hander, averaged 4 1/3 innings, 7.4 hits and five earned runs over his last five starts.
Both pitchers nevertheless enter with a difficult outing in their recent history. Anderson allowed five earned runs on seven hits in 4 1/3 innings against the Angels on September 14. Sugano surrendered six earned runs on eight hits, including two home runs, in five innings against San Diego that day.
Relief numbers help, but leave uncertainty
Covers' team pitching table also favors Seattle's relievers, listing a 4.50 ERA and 1.36 WHIP against Colorado's 4.88 ERA and 1.45 WHIP. Those figures strengthen the Mariners' pitching case, but they do not establish which relievers will be available or how much work either bullpen can handle.
Betting decision: Pass
Seattle's pitching advantage does not establish that its -155 moneyline offers value. Without verified offensive trends, lineup information or bullpen workload, the case remains incomplete, especially after Anderson's latest outing.
The total is 11, with over 11 (+100) and under 11 (-120). The starters' recent run prevention raises scoring concerns, but it cannot establish either team's offensive output or justify a total wager. Pass on this matchup, with no winner selection or projected score.