Seattle Mariners vs Colorado Rockies Prediction, 9/20/2026 MLB Picks, Best Bets & Odds

Game: Seattle Mariners vs Colorado Rockies

Date: Sunday, September 20, 2026

Location: Coors Field in Denver, CO

TV: Rockies.TV

Odds/Point Spread: Seattle (-145) Colorado (+125)

The Colorado Rockies (56-97) will play the Seattle Mariners (71-82) at Coors Field on Sunday. The moneyline on this game has Seattle at -145 and Colorado is priced at +125. The total is set at 8.5. The starting pitchers will be Kade Anderson and Tomoyuki Sugano.

As a team, the Seattle Mariners are putting up 4.1 runs per outing, which ranks them 28th in baseball. They have tallied 624 runs while holding a team on-base percentage of .312. The Mariners have accrued 191 two-baggers as a unit and have knocked 175 baseballs out of the park. They have 601 runs batted in and 1,181 hits on the campaign, and their average at the plate comes in at .232. Seattle is slugging .380 and have been called out on strikes 1,329 times, while being walked on 519 occasions.

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The Mariners have a team ERA of 4.21 on the season (20th in baseball), and the staff has struck out 1,301 batters. Mariners pitchers have allowed 186 home runs and 680 runs in total (17th in MLB). Their pitching staff has walked 408 opposing batters and their FIP is 4.02 as a squad on the season. Seattle has given up 1,289 hits (8.6 per 9 innings) in addition to 631 earned runs. They have accrued a K/BB ratio of 3.19 and their pitching staff holds a collective WHIP of 1.26.

The Mariners have sent 470 relievers to the mound over the course of the season. The bullpen pitchers have inherited 162 runners over the course of the season and 31.5% of them crossing the plate. The bullpen have notched 77 holds over the course of the season (22nd in the league). Mariners pitchers have stepped onto the hill with runners on 116 times and also have had 151 appearances in high leverage situations. They have compiled 33 saves on the season and have missed out on 26 of their 59 save opportunities. The Mariners relievers have earned a save percentage of 55.9% and have entered the game in 137 save situations.

The Mariners have turned 69.0% of balls in play into outs out of their 12,144 innings on the diamond, which has them sitting at 24th in the majors. The Seattle Mariners have earned a total of 4,048 putouts this year, as well as 1,261 assists and 79 errors. Their fielding rate is at .985 which is 16th in baseball, and have accumulated 121 double plays.

Anderson has taken the ball for 25 innings and has accounted for 21 K's in his pro baseball career. His ERA is 5.38 (15 earned runs allowed) and his WHIP is 1.434. He has allowed 28 hits (10.0 hits per 9 innings) and has had 8 free passes. Anderson (1-2 career win-loss mark) has earned a FIP of 5.30 and he has faced 107 hitters during his time in the major leagues.

The Rockies hold a slugging % of .417 and they are earning 4.69 runs per game (6th in baseball). They have hit 272 two-baggers, while walking 482 times as well as notching 717 runs. Colorado has accumulated 169 home runs over the course of the season to go along with 687 RBIs. They have been called out on strikes on 1,330 occasions (7th in the league) and have 1,322 base hits. The Colorado Rockies have recorded a team on-base percentage of .324 as well as a batting average of .254 on the year.

The Colorado pitching staff have surrendered 894 runs for the season while having an ERA of 5.62 (838 earned runs yielded). They have given up 211 long balls and they allow 5.99 runs per 9 innings (30th in the league). The Rockies hold a team WHIP of 1.536 and have a FIP of 4.85 as a staff for the season. They have earned a strikeout to walk ratio of 7.00 (1,049 strikeouts against 512 walks). They sit at 30th in baseball as a pitching staff in total hits conceded with 1,549.

Sitting with 120 save situations, the Rockies have recorded 60 holds in addition to 24 blown saves. Colorado has had bullpen pitchers step onto the mound in 56 save opportunities and they have earned 32 saves. Colorado relievers hold an inherited score percentage of 32.1% out of their 237 inherited runners. Their relief pitchers have stepped onto the hill 144 times in high leverage situations and also on 154 occasions with runners on base. They are currently ranked 23rd in MLB with a save percentage of 57.1%, and they have sent 474 relief pitchers to the hill for the season.

In their 12,084 innings on the field, the Rockies have accumulated a defensive efficiency of 66.7% (30th in the majors). The Colorado Rockies have turned 123 double plays and own a fielding percentage of .982 (28th in professional baseball). The Rockies have 1,279 assists, 95 errors and have earned 4,028 putouts on the season.

So far in his career, Sugano has allowed 333 base hits while he has accumulated 192 K's in 299 innings pitched. He has conceded 168 earned runs while holding a WHIP of 1.347 and having a FIP of 5.0. He has a K/BB ratio of 2.74 and he has gone up against 1,289 opposing batters so far in his career. Sugano (22-20 career record) has a 5.05 ERA and has conceded 10.0 hits per 9 innings.

Who will win tonight's MLB game against the spread or moneyline?

Tony Sink's Pick: Take Colorado (+125)

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