Seattle Mariners vs San Diego Padres Picks, Prediction, Odds, and Line Movement for Tuesday April 14 2026
Use Code WWWC Bryan Woo has been one of the most quietly dominant starting pitchers in baseball through the first three weeks of the 2026 season, and Tuesday night's trip to Petco Park gives him a matchup that sets up perfectly for another elite performance. Our MLB picks for the Seattle Mariners vs San Diego Padres break down a game where Seattle's ace carries a 0.78 WHIP and a top-10 percentile expected ERA into a matchup against a Padres starter who has been giving away free passes at an alarming rate — and where the moneyline market has been sending a loud, one-sided signal since this line first posted. Here is the full breakdown before first pitch.
Quick Picks and Prediction
- Moneyline Pick: Seattle Mariners -122
- Total Pick: Under 7 (-105)
- Projected Final Score: Seattle 3, San Diego 1
Odds and Line Movement
Opening Odds
| Team | Moneyline | Total |
|---|---|---|
| Seattle Mariners | -120 | Over 7 -115 |
| San Diego Padres | +100 | Under 7 -105 |
Current Odds
| Team | Moneyline | Total |
|---|---|---|
| Seattle Mariners | -122 | Over 7 -115 |
| San Diego Padres | +102 | Under 7 -105 |
Line Movement - Run Line
| Date | Time | Seattle | San Diego | Public ($, #) |
|---|---|---|---|---|
| 04/13 | 04:25:44 PM | -120 | +100 | |
| 04/13 | 05:24:23 PM | -122 | +102 | |
| 04/13 | 06:47:04 PM | -118 | -102 | |
| 04/13 | 07:31:50 PM | -120 | +100 | SEA 100%, SEA 100% |
| 04/13 | 08:16:46 PM | -122 | +102 | SEA 100%, SEA 100% |
| 04/13 | 11:17:23 PM | -120 | +100 | SEA 100%, SEA 100% |
| 04/14 | 03:29:32 AM | -122 | +102 | SEA 100%, SEA 100% |
Line Movement - Total
| Date | Time | Over | Under | Public ($, #) |
|---|---|---|---|---|
| 04/13 | 04:25:44 PM | 7 -115 | 7 -105 | |
| 04/13 | 07:31:50 PM | 7 -118 | 7 -102 | |
| 04/13 | 07:38:56 PM | 7 -122 | 7 +102 | |
| 04/13 | 08:16:46 PM | 7 -120 | 7 +100 | |
| 04/14 | 08:14:15 AM | 7 -115 | 7 -105 | UN 61%, UN 60% |
Mariners vs Padres Key Matchups and Handicap
Bryan Woo entered the 2026 season as a darkhorse Cy Young contender, and through his first three starts he has pitched like exactly that. Woo has allowed a total of just three earned runs through his first three outings and has done an exceptional job keeping the basepaths clear, posting a 0.78 WHIP that ranks among the best marks in all of baseball. That is not a new development for Woo — he has posted a WHIP under 1.00 in each of the last two full seasons, making his current form a continuation of an established elite pattern rather than a small-sample outlier.
The advanced metrics back up the surface numbers just as convincingly. Woo enters Tuesday in the top-10th percentile among all pitchers in expected ERA and expected batting average allowed on the 2026 season. When a pitcher is excelling in both the traditional and predictive statistical categories simultaneously, it is one of the clearest signals in baseball that the performance is genuine and sustainable.
The historical matchup data against Tuesday's opponent only strengthens the case for Seattle. In 77 plate appearances, San Diego's current roster is hitting just .219 against Woo with a 22.1 percent strikeout rate and a miniscule 3.9 percent walk rate. That combination — weak contact, frequent strikeouts, and almost no free passes — is exactly the profile you want to see from a pitcher entering a specific matchup. The Padres' lineup has not solved Woo, and there is no indication based on his current form that Tuesday night will be any different.
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Seattle arrives at Petco Park riding genuine momentum after completing a four-game sweep of the Astros. The top four hitters in the Mariners' lineup — Brendan Donovan, Cal Raleigh, Julio Rodriguez, and Josh Naylor — all had multi-hit games in Monday's 6-2 victory over Houston, giving Seattle four active bats at the top of the order carrying real recent production into this matchup. George Kirby went 7.2 innings in that finale to help protect the Mariners' bullpen, and Matt Brash and Cole Wilcox needed just 20 pitches combined to close the game. That means Seattle arrives on Tuesday with one of the freshest and most available bullpens of any team playing that night.
San Diego is also coming off a four-game sweep, but wins over the Rockies do not carry the same weight or provide the same competitive preparation that Seattle's series against Houston delivers. The Padres' Michael King has been struggling with walks to open the 2026 season in a way that makes the matchup against Seattle particularly concerning. King allowed four walks to the Tigers in his series opener and three walks against the Pirates in his most recent start. That pattern of issuing free passes is a significant red flag when facing a Mariners lineup that owns a top-5 walk rate on the young season. Seattle is built to work counts, draw walks, and punish pitchers who cannot command the strike zone consistently. King's current command profile is the exact opposite of what a pitcher wants heading into a start against this particular opponent.
The moneyline market has been delivering a clear and unanimous verdict on this game since the line first opened. Seattle has drawn 100 percent of both money and ticket action at every single public data checkpoint from April 13 through the early morning hours of April 14. That kind of sustained, unanimous one-sided action over multiple hours and multiple checkpoints is not driven by recreational bettors — it is a market signal that the sharpest money available identified Seattle as the correct side from the first moment this line was posted and has continued pressing that position throughout the overnight window.
On the totals side, the under has held the juice edge throughout most of the movement window, with the over getting pushed to as heavy as -122 during one brief window before the juice normalized back. The total has stayed firm at 7 throughout, reflecting the books' confidence in a low-scoring projection anchored by Woo's elite control. With Woo on the mound limiting baserunners, a fresh Seattle bullpen available behind him, and King's walk issues likely to limit his own effectiveness and run support, the under case is built on structure rather than hope.
Betting Trends - SEA and SD
- Bryan Woo has allowed just three earned runs through his first three starts of 2026, posting a 0.78 WHIP.
- Woo has posted a WHIP under 1.00 in each of the last two full seasons, making his current form an established pattern.
- Woo ranks in the top-10th percentile among all pitchers in both expected ERA and expected batting average allowed in 2026.
- San Diego's current roster is hitting just .219 against Woo in 77 career plate appearances with a 22.1 percent strikeout rate and a 3.9 percent walk rate.
- Seattle completed a four-game sweep of Houston entering Tuesday, with the top four lineup spots all producing multi-hit games in Monday's finale.
- George Kirby went 7.2 innings on Monday, and the Seattle bullpen used just 20 combined pitches to close the game, leaving the relief corps fully rested.
- San Diego's Michael King allowed four walks in his series opener against Detroit and three walks against Pittsburgh in his most recent start.
- Seattle owns a top-5 walk rate in MLB on the 2026 season, creating a direct stylistic mismatch against a pitcher struggling with command.
- Seattle's moneyline has drawn 100 percent of both money and ticket action at every public data checkpoint since April 13.
- San Diego's sweep came against Colorado, providing less competitive preparation than Seattle's series against Houston.
Key Injuries and Notes - SEA and SD
- Bryan Woo (SEA) - Starting Pitcher: Enters in elite form with a 0.78 WHIP and top-10th percentile expected ERA. Has demonstrated a career-long ability to limit baserunners and has a favorable historical track record against the current San Diego roster.
- Seattle Bullpen - Fully Rested: Matt Brash and Cole Wilcox combined for just 20 pitches in Monday's series finale, leaving the entire Mariners' bullpen operating at full capacity behind Woo for Tuesday's game.
- Brendan Donovan (SEA) - Hot: Had a multi-hit game in Monday's victory, contributing to a top-of-the-order group that is carrying genuine recent offensive momentum into this road matchup.
- Cal Raleigh (SEA) - Hot: Also produced a multi-hit performance in Monday's finale, adding to the Mariners' recent offensive production heading into Tuesday.
- Julio Rodriguez (SEA) - Hot: Part of the four-man multi-hit group at the top of Seattle's order in Monday's win over Houston.
- Josh Naylor (SEA) - Hot: Completed the quartet of multi-hit performances at the top of the Mariners' lineup in Monday's 6-2 series-clinching victory.
- Michael King (SD) - Command Concerns: Has issued four walks in one start and three in another during the early part of 2026, creating significant concern when facing a Seattle lineup that owns a top-5 walk rate in MLB.
Mariners vs Padres ATS and Total Picks
- Moneyline Pick: Seattle Mariners (-122) — Woo's elite early-season form, his favorable career track record against the current San Diego roster, a fully rested bullpen behind him, and a Padres starter struggling with command against a lineup built to draw walks all point decisively toward the Mariners. The market's unanimous 100 percent money and ticket action on Seattle at every checkpoint confirms the sharp side has been aligned on this game from the beginning.
- Total Pick: Under 7 (-105) — Woo is limiting baserunners at an elite level, Seattle's bullpen is fresh and available for the full game, and King's walk issues are more likely to create pitch count problems than a high-scoring output against a disciplined Mariners lineup. The total has held firm at 7 with the under carrying the juice advantage through most of the movement window. Back the under.
Final Score Prediction
Woo gives Seattle everything it needs to control this game from the first pitch, and a fully rested Mariners bullpen provides the depth to protect a lead deep into the night at Petco Park. King's command struggles will create traffic on the bases for a Seattle lineup that is both hot and disciplined, generating just enough run production to win comfortably while staying well under the posted total. Our projected final score is Seattle 3, San Diego 1.
How to Bet the Mariners vs Padres
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