Angels vs Mariners Prediction, Picks & Odds for Today's MLB Game

Quinn Allen - Betting Analyst at Covers.com
Quinn Allen • Betting Analyst 7+ years betting experience
Updated: Jun 29, 2026 , 09:29 AM ET • 4 min read

Mariners win the opener behind George Kirby's dominance.

MLB

Match starts: 10 hrs
LAA
33 %
SEA
67 %
EXPERT PICK - RUN LINE
Seattle -1.5 (-103) Seattle -1.5 (-103)
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Angels vs Mariners predictions
Photo By - Reuters Connect. George Kirby (68) pitches to the New York Mets during the first inning at T-Mobile Park

The Los Angeles Angels and Seattle Mariners meet tonight, with the dominant George Kirby on the hill. 

Behind the righty, my Angels vs. Mariners predictions eye Seattle to grab a home victory in the series opener. 

Find out more in my MLB picks for Monday, June 29. 

Who will win Angels vs Mariners today: Mariners -1.5 (-103)

The Los Angeles Angels hand Ryan Johnson the ball tonight. He's only made two starts since being recalled, but opponents have still managed a 40.8% hard-hit rate while Johnson has allowed 1.64 home runs per nine innings. That's a dangerous combination against a Seattle Mariners lineup that sees the ball better at home.

George Kirby, meanwhile, has been lights out. Over his last four outings, the right-hander owns a 2.82 FIP while allowing just 0.82 home runs per nine innings. Kirby also sports a solid 3.79 FIP at T-Mobile Park this season.

I'll play this pick to -130.

Covers COVERS INTEL: Seattle's offense has compiled a 109 wRC+ at home compared to just 94 on the road.
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Angels vs Mariners Over/Under pick: Under 7.5 runs (-103)

While Ryan Johnson has been vulnerable, Seattle's offense hasn't exactly been rolling either, carrying just a .290 wOBA over the last week. That should help keep this total in check, even if the Mariners find some early success against the Angels' starter.

Both bullpens have also been outstanding lately. Los Angeles owns a phenomenal 1.24 FIP across its last 26 1/3 innings, while Seattle's relief corps has posted a 2.33 FIP over the past week. Both units have done an excellent job limiting damage late in games.

I expect Seattle to score enough to win behind George Kirby, but runs could be difficult to come by after the starters exit.

I'll play this to -120.

Quinn Allen's 2026 Transparency Record
  • ML/RL bets: 31-27, +1.65 units
  • Over/Under bets: 32-25, +2.53 units

Angels vs Mariners weather

Angels vs Mariners odds

  • Moneyline: Angels +194 | Mariners -203
  • Run line: Angels +1.5 (-113) | Mariners -1.5 (+104)
  • Over/Under: Over 7.5 (-108) | Under 7.5 (+104)

Angels vs Mariners trend

The Seattle Mariners have hit the game total Under in six of their last eight games (+3.80 Units / 43% ROI). Find more MLB betting trends for Angels vs. Mariners.

How to watch Angels vs Mariners and game info

Location T-Mobile Park, Seattle, WA
Date Monday, June 29, 2026
First pitch 9:40 p.m. ET
TV Mariners.TV, ABTV
Angels starting pitcher Ryan Johnson
(1-2, 8.85 ERA)
Mariners starting pitcher George Kirby
(6-7, 3.94 ERA)

Angels vs Mariners latest injuries

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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Quinn Allen - Covers
Betting Analyst

Quinn Allen is an experienced sports journalist from Vancouver, Canada who fell in love with sports by the time he could walk. He proceeded to play high-level baseball and soccer growing up and eventually played college baseball in the United States.

After his career ended, Quinn received his broadcast journalism degree from BCIT and has since written for many sports publications including ClutchPoints, Gino Hard, and RG, where he plies his trade as a writer and editor.

Quinn's favorite team is Chelsea FC and he'd like to watch a match at Stamford Bridge one day. He loves to bet on NBA player props and encourages others to bet responsibly and not chase losses.

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