MLB · Sun, Jul 5 · 5:00 PM

Blue Jays at Mariners

O/U 7.5 · RL Mariners -1.5 · T-Mobile Park

GARY'S PICK

MLB@ Mariners· +100

A gorgeous summer afternoon at T-Mobile Park sets the stage for a high-stakes Sunday series finale between the Blue Jays and the Mariners. When you look at tonight's pitching matchup, the starting pitching mismatch is where this game is won or lost. The market is overpaying for a fragile number with Emerson Hancock. While Hancock’s 3.47 ERA and 1.05 WHIP look solid on the surface, his 4.48 expected ERA (xERA) reveals heavy overperformance, backed by a high 9.7% barrel rate and a 44.9% hard-hit rate. Trey Yesavage, on the other hand, is the real deal. Carrying a 3.34 ERA and a 1.10 WHIP, Yesavage’s elite 3.19 xERA is fully backed by a dominant splitter that features a 42.5% whiff rate and a .236 xwOBA. Yesavage has been spectacular on the road this season with a 2.22 road ERA, and today's pitcher-friendly environment will only elevate his effectiveness. The strongest argument against backing Toronto is their fatigued bullpen after yesterday's doubleheader split, which concluded in a taxing 11-0 blowout loss where position players were forced to pitch. Seattle's bullpen enters the finale far more rested, with closer Andres Munoz available. However, Yesavage’s ability to suppress left-handed hitting with a stellar .197 opponent batting average allowed completely neutralizes Seattle’s left-heavy lineup, which features six left-handed or switch hitters. Furthermore, Seattle’s offense has slumped significantly following the fresh injuries to stars Julio Rodriguez and Brendan Donovan over the last 48 hours. Without their offensive anchors, the Mariners' lineup has registered a heavy 36.3% whiff rate in their last three games, pressing significantly without their core producers. Meanwhile, Toronto’s right-handed bats are perfectly positioned to exploit Hancock's primary weaknesses. Hancock's primary four-seam fastball (.381 xwOBA) and sinker (.407 xwOBA) are his main liabilities, which plays directly into the strengths of Kazuma Okamoto (.363 xwOBA against four-seamers) and Ernie Clement (.355 batting average against four-seamers). Defensively, Toronto holds a massive range advantage as the league's #6 team in Outs Above Average (OAA), compared to Seattle’s #29 ranking, which is critical in a ballpark where both fly-ball-leaning starters will test the outfields. At even money (+100), the value lies entirely with Yesavage and the Blue Jays to bounce back and secure the series.

The strongest argument against backing Toronto is their fatigued bullpen after yesterday's doubleheader split, which concluded in a taxing 11-0 blowout loss where position players were forced to pitch. Seattle's bullpen enters the finale far more rested, with closer Andres Munoz available. However, Yesavage’s ability to suppress left-handed hitting with a stellar .197 opponent batting average allowed completely neutralizes Seattle’s left-heavy lineup, which features six left-handed or switch hitters. Furthermore, Seattle’s offense has slumped significantly following the fresh injuries to stars Julio Rodriguez and Brendan Donovan over the last 48 hours. Without their offensive anchors, the Mariners' lineup has registered a heavy 36.3% whiff rate in their last three games, pressing significantly without their core producers.

Meanwhile, Toronto’s right-handed bats are perfectly positioned to exploit Hancock's primary weaknesses. Hancock's primary four-seam fastball (.381 xwOBA) and sinker (.407 xwOBA) are his main liabilities, which plays directly into the strengths of Kazuma Okamoto (.363 xwOBA against four-seamers) and Ernie Clement (.355 batting average against four-seamers). Defensively, Toronto holds a massive range advantage as the league's #6 team in Outs Above Average (OAA), compared to Seattle’s #29 ranking, which is critical in a ballpark where both fly-ball-leaning starters will test the outfields. At even money (+100), the value lies entirely with Yesavage and the Blue Jays to bounce back and secure the series.

The pick & result

Published pick: Blue Jays ML +100
Published odds: +100
Result: Lost
Final score: 0-4

Odds are the American price printed with this pick, not a current offer. Wins, losses and pushes remain on the public record; a missing grade is not a win.

The read

Injuries noted

Mariners: [NEW] Brendan Donovan (3B) — Groin (Left): Donovan (groin) will embark on a rehab assignment Tuesday, Ryan Divish of The Seattle Times reports. (Jul 4 — 1d ago) [KNOWN] Matt Brash (RP) — Lat (Right): General manager Justin Hollander said Tuesday that Brash was diagnosed with a Grade 1 strain in his right lat, Shannon Drayer of SeattleSports.com reports. (Jun 16 — 18d ago) [KNOWN] Carlos Vargas (Relief Pitcher) — Lat (Right): Mariners general manager Justin Hollander said Tuesday that Vargas (lat) recently began a throwing program and could be ready to return from the 60-day injured list around the Aug. 3 trade deadline, Zac Hereth of 710 AM Seattle Sports reports. (Jun 17 — 18d ago) [KNOWN] Will Wilson (3B) — Thumb (Left): Wilson (thumb) has gone 3-for-9 with two RBI and a 1:2 BB:K in his first three rehab games between High-A Everett and Triple-A Tacoma. (Jun 17 — 18d ago) [NEW] Cooper Criswell (RP) — Shoulder (Right): Seattle transferred Criswell (shoulder) to the 60-day injured list Friday. (Jul 4 — 0d ago) [KNOWN] Rob Refsnyder (DH) — Knee (Right): The Mariners placed Refsnyder (knees) on the 10-day injured list Monday, Adam Jude of The Seattle Times reports. (Jun 29 — 5d ago) [NEW] Julio Rodriguez (CF) — Concussion (Not Specified): The Mariners placed Rodriguez (concussion) on the 7-day injured list Friday. (Jul 3 — 1d ago) Blue Jays: [KNOWN] Jesus Sanchez (RF) — Ankle (Right): The Blue Jays placed Sanchez on the 10-day injured list Saturday with a right ankle sprain. (Jun 27 — 8d ago) [NEW] Max Scherzer (SP) — Back (Left): Scherzer (back) threw three innings for High-A Vancouver on Friday, giving up two runs on three hits and two walks while striking out three. (Jul 4 — 1d ago) [KNOWN] Addison Barger (RF) — Back (Not Specified): Blue Jays manager John Schneider said Monday that Barger (elbow) will be shut down for a couple of weeks after a recent MRI revealed a stress reaction in his back, Keegan Matheson of MLB.com reports. (Jun 29 — 5d ago) [KNOWN] Lenyn Sosa (2B) — Wrist (Right): Sosa (wrist) will begin a rehab assignment Monday with the Blue Jays' Arizona Complex League affiliate, Mitch Bannon of The Athletic reports. (Jun 22 — 13d ago) [KNOWN] Joe Mantiply (RP) — Knee (Left): Mantiply will undergo arthroscopic surgery to repair some damage in his left knee, Arden Zwelling of Sportsnet.ca reports. (Jun 3 — 31d ago) [KNOWN] Jose Berrios (Starting Pitcher) — Elbow (Right): Blue Jays manager John Schneider said that Berrios underwent full Tommy John surgery Wednesday in addition to having a stress fracture repaired, Hazel Mae of Sportsnet reports. (May 27 — 39d ago) [KNOWN] Cody Ponce (Starting Pitcher) — Knee (Right): Ponce underwent surgery Friday to repair the ACL in his right knee, Arden Zwelling of Sportsnet.ca reports. (May 8 — 58d ago) [NEW] George Springer (DH) — Personal (Not Specified): The Blue Jays are placing Springer on the Family Medical Emergency List on Saturday, Hazel Mae of Sportsnet reports. (Jul 4 — 1d ago)

The research

The dated measurements the app shows under this card — observations with their sample and source, not predictions.

STARTER FORM

Emerson Hancock: 7.20 ERA over his last 3 starts
7.20
Across his last 3 starts (15 IP) he has been tagged for 12 earned runs — a 7.20 ERA with a 1.53 WHIP (1.05 season) against a 3.47 season mark.

PLATOON EDGE

Nathan Lukes (bats L) hits 1st against Emerson Hancock (RHP)
.829
Over 144 AB vs. Right, Nathan Lukes owns a .829 OPS versus .297 in 31 AB the other way. He sees RHP Emerson Hancock tonight hitting 1st, where the platoon side lines up his way.

COOLING OFF

Vladimir Guerrero Jr.: .479 OPS in L15 — draws RHP Emerson Hancock
.479
Vladimir Guerrero Jr.'s .479 OPS over the last 15 days (48 PA) trails his .693 season mark, down 0.214. Tonight he draws RHP Emerson Hancock — his weaker side: a .671 OPS vs RHP across 243 AB.

BULLPEN

Toronto Blue Jays pen: 14 relief IP over their last 3 games
14 IP
Toronto Blue Jays's bullpen has thrown 14 innings across their last 3 games. A worked-down pen heading into tonight.

FIRST INNING

SEA have gone quiet in the 1st: runs in 1 of their last 10
1/10
Seattle Mariners have scored in the first inning just 1 time in their last 10 games — slow-starting lineup, and the 1st has been a free pass for opposing starters.

RUNNING GAME

Green light: Seattle Mariners run, and Alejandro Kirk has caught just 13%
13% CS
Seattle Mariners steal 0.8 bags a game (68 on the season) and Alejandro Kirk has thrown out 4 of 30 runners (13%). Everything about tonight says they keep running.

PARK WEATHER

Wind blowing in 10 mph at T-Mobile Park tonight
IN 10
Tonight's reading at T-Mobile Park — Sunny, 71°, wind 10 mph, In From LF. The air is taking runs off the board. The total sits at 7.5.

SITUATIONAL

14 bullpen innings in 3 games for TOR
14
Relievers have absorbed 14 innings over the last 3 games (Patrick Corbin (5) and Spencer Miles (3) the heaviest). SEA's pen has thrown 6.7 over the same span.

FANTASY PICKUPS

Trey Yesavage
3.19 xERA
Streamer vs SEA — 3.19 xERA · 8.2 K/9 · 1.1 WHIP.

All research from this day

About this analysis

Who made it: Gary AI, an AI sports-analysis product operated by Gary A.I. LLC. No human reviewer is claimed unless one is explicitly named.
Published data: Daily picks first stored July 5, 2026 at 11:07 AM ET.
Odds record: The pick receipt shows the price printed in the published ticket. The matchup market and line ladder provide separate market context. Stored sportsbook sources: fanatics, draftkings, fanduel, caesars, betmgm, betrivers.
Accountability: Read the editorial standards, source policy, and corrections process.

Props on this game

GARY'S PICK
VLADIMIR GUERRERO JR.TOTAL BASES UNDER 1.5
MLBBlue Jays· -165
LOST · ACTUAL 2
Vladimir Guerrero Jr. is in the midst of a significant power and contact drought, hitting just .150 over his last 40 at-bats. He has cleared the 1.5 total bases mark only once in his last 10 games and has failed to record a home run in that same span. Tonight's environment at T-Mobile Park is exceptionally hostile to right-handed power hitters; the stadium already suppresses fly balls, and the 10 mph wind blowing directly in from left field will further neutralize any balls he pulls. Against Emerson Hancock, who maintains a crisp 1.05 WHIP, Guerrero will likely struggle to find the multi-hit performance or extra-base hit required to clear this line. His season-long power numbers (4 HR in over 300 ABs) suggest a fundamental shift in profile that favors the under in a pitcher-friendly park.
Vladimir Guerrero Jr.
Total Bases under 1.5
-165 · LOST · ACTUAL 2
Blue Jays
Vladimir Guerrero Jr. is in the midst of a significant power and contact drought, hitting just .150 over his last 40 at-bats.
He has cleared the 1.5 total bases mark only once in his last 10 games and has failed to record a home run in that same span. Tonight's environment at T-Mobile Park is exceptionally hostile to right-handed power hitters; the stadium already suppresses fly balls, and the 10 mph wind blowing directly in from left field will further neutralize any balls he pulls.
Against Emerson Hancock, who maintains a crisp 1.05 WHIP, Guerrero will likely struggle to find the multi-hit performance or extra-base hit required to clear this line. His season-long power numbers (4 HR in over 300 ABs) suggest a fundamental shift in profile that favors the under in a pitcher-friendly park.
GARY'S PICK
RANDY AROZARENAHITS OVER 0.5
MLBMariners· -180
✓ CASHED · ACTUAL 1
While Blue Jays starter Trey Yesavage has been dominant against right-handed hitters this season (.170 AVG), Randy Arozarena represents a specific matchup outlier, having gone 3-for-5 in their previous meetings. Arozarena has been one of the most consistent hitters for a Seattle lineup currently missing key pieces like Julio Rodriguez and Brendan Donovan, recording a hit in 70% of his last 10 games. Batting in the second spot ensures Arozarena will see 4-5 plate appearances, providing a high volume floor to secure at least one knock. His recent form includes a .286 average over the last 10 games, and his ability to hit Yesavage's primary offerings in the past gives him a distinct advantage over other right-handed bats in this lineup.
Randy Arozarena
Hits over 0.5
-180 · CASHED · ACTUAL 1
Mariners
While Blue Jays starter Trey Yesavage has been dominant against right-handed hitters this season (.170 AVG), Randy Arozarena represents a specific matchup outlier, having gone 3-for-5 in their previous meetings. Arozarena has been one of the most consistent hitters for a Seattle lineup currently missing key pieces like Julio Rodriguez and Brendan Donovan, recording a hit in 70% of his last 10 games. Batting in the second spot ensures Arozarena will see 4-5 plate appearances, providing a high volume floor to secure at least one knock. His recent form includes a .286 average over the last 10 games, and his ability to hit Yesavage's primary offerings in the past gives him a distinct advantage over other right-handed bats in this lineup.

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