Cincinnati Reds vs Seattle Mariners Prediction 7/20/2026 Today’s MLB Picks

In this article, we will formulate a Reds vs Mariners Prediction for this MLB matchup on Monday, July 20th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Seattle Mariners Preview

The Seattle Mariners have a 50-50 record this season and are sitting in the 2nd place of the AL West. They have a 29-21 home record and are coming off a 6-3 home win against the Giants. They will face the Rangers and the Dodgers next.

The Seattle Mariners have a .227 batting average this season, .309 OBP and .375 Slugging percentage. Seattle’s pitching staff has a 3.62 ERA and 1.18 WHIP. Randy Arozarena is the team’s best hitter with a .281 batting average. Cole Young leads the team in RBI with 48, while Luke Raley adds a team-high 15 home runs.

George Kirby (R) is the projected starting pitcher for the Seattle Mariners, and he has a 7-8 record, 3.76 ERA and 1.32 WHIP.

Cincinnati Reds Preview

The Cincinnati Reds have a 45-53 record this season and are sitting in the 5th place of the NL Central. They have a 23-25 away record and are coming off a 9-6 road win against the Rockies. They will face the Cardinals and the Guardians next.

The Cincinnati Reds have a .231 batting average this season, .310 OBP and .398 Slugging percentage. Cincinnati’s pitching staff has a 4.56 ERA and 1.44 WHIP. Elly De La Cruz is the team’s best hitter with a .282 batting average. Sal Stewart leads the team in RBI with 70, adding a team-high 20 home runs.

Andrew Abbott (L) is the projected starting pitcher for the Cincinnati Reds, and he has a 5-5 record, 4.11 ERA and 1.42 WHIP.

Cincinnati Reds @ Seattle Mariners Betting Trends: July 20, 2026

• Probable Starting Pitcher: George Kirby      Record this season: 7-8      ERA: 3.76
• Home Record: 4-4
• Last 5 against Reds: 1-0

Why the Seattle Mariners will win

• The Reds have lost each of their last six games following a win.
• The Mariners have won seven of their last eight home games against NL Central opponents that held a losing record.
• The Reds have failed to cover the run line in each of their last seven night games against American League opponents.
• The Mariners have covered the run line in seven of their last eight home games against the Reds.
• The Reds have trailed after 3 innings in four of their last five road games against American League opponents.
• The Mariners have led after 5 innings in six of their last seven night games against the Reds.
• The Mariners have won the first inning in three of their last four night games against the Reds.

• Probable Starting Pitcher: Andrew Abbott      Record this season: 5-5      ERA: 4.11
• Road Record: 3-2
• Last 5 against Mariners: 0-1

Why the Cincinnati Reds will win

• The Reds have won each of their last three games as road underdogs against AL West opponents.
• The Mariners have lost four of their last six games as favorites against National League opponents.
• The Mariners have failed to cover the run line in seven of their last eight games as favorites against National League opponents.
• The road team has covered the run line in four of the Reds’ last five games.
• The Reds have won the first inning in four of their last five games as road underdogs.
• The Mariners have trailed after 3 innings in each of their last four games as favorites against NL Central opponents.
• The Mariners have trailed after 5 innings in each of their last seven night games.

Total Runs Facts

• Each of the Reds’ last eight night games as underdogs have gone UNDER the total runs line.
• Five of the Mariners’ last six games as favorites against NL Central opponents have gone UNDER the total runs line.
• There has been no run scored during the first inning in each of the Mariners’ last nine night games.
• There has been at least one run scored in the first inning in each of the Reds’ last seven road games.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit at least one home run in three of the Mariners’ last four games against the Reds.
• George Kirby has recorded a win in three of his four previous appearances against NL Central opponents that held a losing record.
• George Kirby has recorded seven or more strikeouts in three of his last four appearances in night games against teams that held a losing record.
• Josh Naylor has recorded at least one hit in each of his last 15 home appearances against NL Central opponents that held a losing record.

Cincinnati Reds Player Prop Facts

• Andrew Abbott has recorded a win in four of his last five road appearances against AL opponents.
• Andrew Abbott has recorded five or more strikeouts in four of his last five appearances against AL West opponents.
• JJ Bleday has recorded at least one hit in each of the Reds’ last nine games.
• Jose Trevino has hit at least one home run in each of his last two road appearances.
• Elly De La Cruz is one of only four players to record 10+ Home Runs and 4+ Triples this season.

Matchup/League Facts

• The Mariners rank 30th in the league for doubles this season (122).
• The Mariners rank 30th in the league for doubles this season (122).
• The Reds rank 28th in the league for strikeouts against this season (919).
• The Reds rank 28th in the league for strikeouts against this season (919).

Reds vs Mariners Prediction

The Mariners are 6-1 in their last 7 meetings against the Reds, having won their last three meetings in Seattle.

In this Reds vs Mariners Prediction, the Mariners are coming as -145 home favorites. I like the Mariners at home in this one, as Kirby has been the better option than Abbott on the mound and in better form lately. Abbott has given up 3+ runs in three of his last four starts, while Kirby has given up two or less in each of his last three starts. On top of that, the Mariners have a superior bullpen to relief him, they have been very good at home and are 3-1 in their last 4 games. Take the Mariners in this one.

Nikos Lagouretos's Pick: Seattle Mariners ML