Padres vs Mariners Prediction 5/16/26 MLB Picks Today

In this article, we will formulate a Padres vs Mariners Prediction for this MLB matchup on Saturday, May 16^th in the second game of this series. Let’s take a look at the prediction for this MLB matchup.

Seattle Mariners Preview

The Seattle Mariners have a 22-24 record this season and are sitting in the second place of the AL West. They have a 12-12 home record and are coming off a 0-2 loss at home against the Padres. They will face the White Sox and the Royals next.

The Mariners have a .232 batting average this season, .321 OBP and .383 Slugging percentage. Seattle’s pitching staff has a 3.58 ERA and 1.23 WHIP. Randy Arozarena is the team’s best hitter with a .305 batting average. Luke Raley leads the team in RBI with 27, also adding a team‑high 10 home runs.

Logan Gilbert (R) is the projected starting pitcher for the Mariners, and he has a 2-3 record, 3.78 ERA and 1.16 WHIP.

San Diego Padres Preview

The San Diego Padres have a 26-18 record this season and are sitting in the second place of the NL West. They have a 13-8 away record and are coming off a 2-0 win on the road against the Mariners. They will face the Dodgers and the Athletics next.

The Padres have a .223 batting average this season, .294 OBP and .363 Slugging percentage. San Diego’s pitching staff has a 4.04 ERA and 1.26 WHIP. Xander Bogaerts is the team’s best hitter with a .263 batting average, also leading the team in RBI with 23 and adding a team‑high 7 home runs.

Walker Buehler (R) is the projected starting pitcher for the Padres, and he has a 2-2 record, 5.20 ERA and 1.35 WHIP.

San Diego Padres @ Seattle Mariners Betting Trends: May 16, 2026

• Probable Starting Pitcher: Logan Gilbert      Record this season: 2-3      ERA: 3.78
• Home Record: 2-2
• Last 5 against Padres: 4-1

Why the Seattle Mariners will win

• The Mariners have won each of their last six day games against teams that held a winning record.
• The Padres have lost each of their last four games at T-Mobile Park following a win.
• The Padres have failed to cover the run line in seven of their last eight games following a win.
• The Mariners have covered the run line in four of their last five games against the Padres following a home loss.
• The Mariners have led after 3 innings in each of their last five day games.
• The Mariners have led after 5 innings in six of their last seven day games against the Padres.

• Probable Starting Pitcher: Walker Buehler      Record this season: 2-2      ERA: 5.20
• Road Record: 1-1
• Last 5 against Mariners: 2-1

Why the San Diego Padres will win

• The Mariners have lost each of their last five games as favorites against NL West opponents.
• The Padres have won each of their last six day games against teams that held a losing record.
• The underdogs have covered the run line in 12 of the last 13 games between the Padres and Mariners.
• The Mariners have failed to cover the run line each of their last six home games against NL West opponents that held a winning record.
• The Padres have led after 5 innings in each of their last four day games against American League opponents.
• The Mariners have trailed after 3 innings in three of their last four day games against opponents that held a winning record.

Total Runs Facts

• Each of the Padres’ last eight day games against AL West opponents have gone UNDER the total runs line.
• Each of the Mariners’ last four games as favorites against the Padres have gone UNDER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Padres’ last 15 games against American League opponents.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Mariners’ last six games against NL West opponents.

Seattle Mariners Player Prop Facts

• Luke Raley has hit a home run in two of the Mariners’ last three games.
• Logan Gilbert has recorded a win in four of his five previous appearances against the Padres.
• Logan Gilbert has recorded seven or more strikeouts in 12 of his last 15 appearances in day games.
• Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 13 Saturday games.
• Randy Arozarena ranks T8th in the league in Steals (12) this season.

San Diego Padres Player Prop Facts

• Manny Machado has hit a home run in each of the Padres’ last two day games against AL opponents that held a losing record.
• Xander Bogaerts has recorded at least one hit in each of his last 13 road appearances against the Mariners after playing the previous day.

Matchup/League Facts

• The Mariners rank 1st in the league for walks allowed this season (114).
• The Mariners rank 28th in the league for strikeouts against this season (416).
• The Padres rank 30th in the league for hits this season (322).
• The Padres rank 30th in the league for batting average this season (.223).

Padres vs Mariners Prediction

The Padres are 4-1 in their last 5 meetings against the Mariners and are 2-1 in their last 3 visits in Seattle.

In this Padres vs Mariners Prediction, the Mariners are coming as -160 home favorites. The Mariners have the pitching advantage today as Gilbert goes up against Walker Buehler. Gilbert finally got back on track with zero and one earned runs in two of his last three starts and Buehler has been target practice on the road with a 10.12 road ERA. On top of that, the Mariners have the second-best bullpen in baseball and are in a bounce-back spot at home today, so I expect them to win this one. Take the Mariners on the moneyline.