Mariners vs. Rays Dunkel MLB Picks, Predictions and Prop Bets - Aug. 8

The Tampa Bay Rays aim to prolong their four-game winning streak when they square off against the Seattle Mariners on Saturday at 9:50 p.m. ET, at T-Mobile Park. George Kirby (8-9, 3.76 ERA) gets the start for the Mariners, who are 56-61 this season and third in the AL West. Griffin Jax (6-9, 3.63 ERA) is the expected starter for the Rays, who are 69-46 and first in the AL East.

The Rays (+103) are on the road versus the favored Mariners (-117). The game's total is set at 7.

Mariners vs. Rays Odds, Game Time

• Game day: Saturday, August 8, 2026
• Game time: 9:50 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-117)
• Underdog: Rays (+103)
• Over/under: 7

How to Watch Mariners vs. Rays

• TV Channel: SEAM and RAYS
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Mariners vs. Rays: Betting the Moneyline

• The Mariners have won 51% of the games this season when they were favored on the moneyline (50-48).
• Tampa Bay has come away with 17 wins in the 38 contests it has been listed as the underdogs in this season.
• Seattle has a record of 47-42, a 52.8% win rate, when favored by -117 or more by bookmakers this season.
• This season, the Rays have been victorious nine times in 21 chances when named as an underdog of at least +103 or longer on the moneyline.
• Based on this contest's moneyline, the Mariners have an implied win probability of 53.9%.
• The Rays have an implied victory probability of 49.3% according to the moneyline set for this matchup.

Mariners vs. Rays: Betting the Spread & Total

• In the 117 games in which oddsmakers have set an over/under for the Mariners, they have combined with opponents to go over the total 57 times (57-52-8).
• Tampa Bay and its opponents have gone over the total this season in 50 of its 115 opportunities.
• The Mariners have covered only 36.8% of their games this season, going 43-74-0 ATS.
• The Rays are 65-50-0 against the spread in their 115 games that had a posted line this season.