In this article, we will formulate a Mariners vs Rockies Prediction for this MLB matchup on Saturday, September 19th in the second game of this series. Let’s take a look at the prediction for this MLB matchup.
Colorado Rockies Preview
The Colorado Rockies have a 56-98 record this season and are sitting in the 5th place of the NL West. They have a 31-45 home record and are coming off a 4-5 home loss against the Mariners. They will face the Dbacks and the White Sox next.
The Colorado Rockies have a .255 batting average this season, .324 OBP and .418 Slugging percentage. Colorado’s pitching staff has a 5.61 ERA and 1.53 WHIP. TJ Rumfield is the team’s best hitter with a .300 batting average. Jake McCarthy leads the team in RBI with 82, while Hunter Goodman adds a team-high 38 home runs.
Jose Quintana (L) is the projected starting pitcher for the Rockies, and he has a 2-3 record, 5.27 ERA and 1.51 WHIP.
Seattle Mariners Preview
The Seattle Mariners have a 72-82 record this season and are sitting in the 3rd place of the AL West. They have a 32-47 away record and are coming off a 5-4 road win against the Rockies. They will face the Astros and the Angels next.
The Seattle Mariners have a .232 batting average this season, .312 OBP and .381 Slugging percentage. Seattle’s pitching staff has a 4.21 ERA and 1.26 WHIP. Randy Arozarena is the team’s best hitter with a .281 batting average, adding a team-high 75 RBI and a team-high 25 home runs.
Bryce Miller (R) is the projected starting pitcher for the Mariners, and he has a 4-9 record, 4.19 ERA and 1.16 WHIP.
Seattle Mariners @ Colorado Rockies Betting Trends: September 19, 2026
- Probable Starting Pitcher: Tomoyuki Sugano Record this season: 12-10 ERA: 5.49
- Home Record: 7-6
- Last 5 against Mariners: 2-0
Why the Colorado Rockies will win
- The Mariners have lost six of their last seven games as favorites following a road win.
- The Rockies have won six of their last nine games as home underdogs against AL West opponents.
- The Mariners have failed to cover the run line in each of their last 10 games against NL opponents following a road win.
- The Rockies have covered the run line in each of their last seven night games at Coors Field following a loss.
- The Mariners have trailed after 3 innings in five of their last six games against NL West opponents.
- The Mariners have trailed after 5 innings in 13 of their last 15 road games against NL opponents.
- The Mariners have lost the first inning in four of their last five games against NL West opponents.
- Probable Starting Pitcher: Bryce Miller Record this season: 4-9 ERA: 4.19
- Road Record: 3-4
- Last 5 against Rockies: 0-0
Why the Seattle Mariners will win
- The Mariners have won each of their last nine night games against the Rockies following a win.
- The Rockies have lost each of their last seven games against AL opponents.
- The Rockies have failed to cover the run line each of their last eight Saturday games against AL West opponents that held a losing record.
- The Mariners have covered the run line in four of their last five night games at Coors Field following a win.
- The Rockies have trailed after 5 innings in each of their last six games.
- The Rockies have lost the first inning in each of their last three games against AL West opponents.
- The Mariners have led after 3 innings in each of their last four road games against NL opponents that held a losing record.
Total Runs Facts
- Each of the Rockies’ last eight home games against AL opponents have gone UNDER the total runs line.
- Nine of the Mariners’ last 10 night games after playing the previous day have gone OVER the total runs line.
- There has been no run scored during the first inning in each of the Mariners’ last 10 Saturday night games against NL West opponents.
- There has been at least one run scored in the first inning in each of the Rockies’ last six games.
Colorado Rockies Player Prop Facts
- Hunter Goodman has hit at least one home run in each of his last three Saturday appearances against AL teams that held a losing record.
- Connor Norby has recorded at least one hit in each of the Rockies’ last nine night games against opponents that held a losing record.
- Tomoyuki Sugano has recorded four or more strikeouts in each of his last four appearances against AL West opponents that held a losing record.
- Tomoyuki Sugano has recorded a win in each of his last four appearances against AL West opponents.
- TJ Rumfield ranks 4th amongst qualified players for On Base Percentage (.392) this season.
Seattle Mariners Player Prop Facts
- J.P. Crawford has hit a home run in three of the Mariners’ last five night games.
- Bryce Miller has recorded five or more strikeouts in each of his last seven appearances against opponents that held a losing record.
- Taylor Ward has recorded at least one hit in each of his last 10 road appearances against NL West opponents.
- Randy Arozarena ranks 10th amongst qualified players for On Base Percentage (.378) this season.
Matchup/League Facts
- The Rockies rank 1st in the league for triples this season (38).
- The Rockies rank 30th in the league for ERA this season (5.61).
- The Mariners rank 30th in the league for doubles this season (195).
- The Mariners rank 29th in the league for hits this season (1190).
Mariners vs Rockies Prediction
The Mariners are 9-1 in their last 10 meetings against the Rockies and are 3-1 in their last 4 visits in Colorado.
In this Mariners vs Rockies Prediction, the Mariners are coming as -165 road favorites. The Mariners are not mathematically eliminated from playoff contention yet and are putting Bryce Miller on the mound, who has managed to string two quality starts in his last three. On the flip side, Quintana will step on the court after months of absence and he has been terrible this season with a 5.27 ERA and 1.51 WHIP. The Mariners have both a superior offense and bullpen ERA in their last 10 games, so take them on the moneyline to win this one on the road.