Mariners vs Blue Jays Prediction 7/4/26 MLB Picks Today
Toronto Blue Jays (42-46) vs. Seattle Mariners (45-44)
July 4, 2026 4:10 pm EDT
The Line: Seattle Mariners -163 / Toronto Blue Jays 135; Over/Under: 7.5
(Get latest betting odds)
The Toronto Blue Jays and Seattle Mariners meet Saturday in MLB action at T-Mobile Park. Here’s a Mariners vs Blue Jays Prediction. This article will include a Mariners vs Blue Jays Pick.
Toronto Blue Jays Betting Preview
The Toronto Blue Jays are 42-46 on the year and play the Giants and Padres next. The Toronto Blue Jays are batting .247 on the season and have a .309 OBP and a .388 slugging percentage. The Toronto Blue Jays’ pitching staff has a 4.04 ERA and a 1.30 WHIP. Ernie Clement leads the Toronto Blue Jays with 96 hits and 29 RBI, while Kazuma Okamoto and Vladimir Guerrero Jr. have combined for 156 hits and 89 RBI.
Shane Bieber gets the ball for the Toronto Blue Jays, and he is 0-0 with a 6.00 ERA and 6 strikeouts this season. Bieber is 2-2 with a 2.30 ERA and 49 strikeouts in his career against the Seattle Mariners.
Seattle Mariners Betting Preview
The Seattle Mariners are 45-44 on the year and play the Rays and Marlins next. The Seattle Mariners are batting. 231 on the season, have a .312 OBP, and have a .379 slugging percentage. The Seattle Mariners’ pitching staff has a 3.63 ERA and a 1.18 WHIP. Julio Rodriguez leads the Seattle Mariners with 89 hits and 40 RBI, while Cole Young and Randy Arozarena have combined for 166 hits and 78 RBI.
Logan Gilbert gets the ball for the Seattle Mariners, and he is 6-5 with a 3.42 ERA and 107 strikeouts this season. Gilbert is 0-2 with a 5.24 ERA and 41 strikeouts in his career against the Toronto Blue Jays.
Why the Seattle Mariners will win
- The Blue Jays have lost each of their last four day games against AL West opponents.
- The Mariners have won six of their last seven home games following a loss.
- The Blue Jays have failed to cover the run line in each of their last six games against American League opponents after playing the previous day.
- The Mariners have covered the run line in each of their last six day games against American League opponents.
- The Blue Jays have lost the first inning in four of their last five games against American League opponents.
- The Mariners have led after 3 innings in six of their last seven day games against American League opponents.
- The Blue Jays have trailed after 5 innings in each of their last four day games against AL West opponents.
Why the Toronto Blue Jays will win
- The Blue Jays have won each of their last six games as road underdogs against the Mariners.
- The Mariners have lost each of their last four games as home favorites against the Blue Jays following a loss.
- The Blue Jays have covered the run line in each of their last 10 games as road underdogs against the Mariners.
- The Mariners have failed to cover the run line in each of their last four games as home favorites against the Blue Jays following a loss.
- The Blue Jays have led after 5 innings in each of their last four road games against American League opponents.
- The Blue Jays have led after 3 innings in each of their last four road games against American League opponents.
Total Runs Facts
- Each of the Blue Jays’ last eight games as underdogs against the Mariners has gone OVER the total runs line.
- Eight of the last nine games between the Blue Jays and Mariners at T-Mobile Park have gone OVER the total runs line.
- There has been no run scored during the first inning in each of the Blue Jays’ last six day games at T-Mobile Park.
- There has been no run scored during the first inning in 11 of the last 13 games between the Blue Jays and Mariners at T-Mobile Park.
Seattle Mariners Player Prop Facts
- Josh Naylor has hit a home run in two of his last three appearances with his team as a favorite against the Blue Jays.
- Logan Gilbert has recorded six or more strikeouts in each of his last 14 home appearances against AL opponents that held a losing record.
- Cole Young has recorded at least one hit in each of the Mariners’ last nine day games against opponents that held a losing record.
- Logan Gilbert has recorded a win in each of his last four home appearances against opponents that held a losing record.
- Randy Arozarena ranks 10th in the league in Steals (19) this season.
Toronto Blue Jays Player Prop Facts
- Andrés Giménez has hit a home run in each of the Blue Jays’ last two games as underdogs against the Mariners.
- Shane Bieber has recorded a win in four of his last five road appearances against opponents that held a winning record.
- Shane Bieber has recorded six or more strikeouts in each of his last six road appearances against AL West opponents that held a winning record.
- Andrés Giménez has recorded at least one hit in each of his last seven appearances with his team as a road underdog against the Mariners.
- Ernie Clement ranks T6th in the league in Hits (96) this season.
Matchup/League Facts
- The Mariners rank 1st in the league for walks allowed this season (224).
- The Mariners rank 1st in the league for home runs allowed this season (80).
- The Blue Jays rank 30th in the league for triples this season (5).
- The Blue Jays rank 29th in the league for walks this season (244).
Mariners vs Blue Jays Prediction
The Blue Jays continue to run hot and cold until proven otherwise, and while Bieber is capable of above-average stuff, he has just 9 innings under his belt this season. Gilbert looks like he’s found his all-star form as he’s coming off a month of June where he allowed 19 hits and 10 runs in 31.2 innings. The Mariners are 6-1 in Gilbert’s last 7 starts. Gilbert has allowed 10 runs in his last 42.1 innings. I’m rolling with the Mariners and the reasonable price at home.