Mariners vs. Reds Dunkel MLB Picks, Predictions and Prop Bets - July 20

The Seattle Mariners and Cincinnati Reds square off in the first of a three-game series on Monday at T-Mobile Park, at 9:40 p.m. ET. George Kirby (7-8, 3.76 ERA) gets the start for the Mariners, who are 50-50 this season and second in the AL West. Andrew Abbott (5-5, 4.11 ERA) is expected to start for the Reds, who are 45-53 and fifth in the NL Central.

Bookmakers have made the Mariners a decent moneyline favorite (-145) at home over the Reds (+119). The contest has an over/under set at 7.5.

Mariners vs. Reds Odds, Game Time

• Game day: Monday, July 20, 2026
• Game time: 9:40 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-145)
• Underdog: Reds (+119)
• Over/under: 7.5

How to Watch Mariners vs. Reds

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

Bet now on FanDuel Sportsbook!

Mariners vs. Reds: Betting the Moneyline

• The Mariners have put together a 46-39 record in games they were favored on the moneyline (winning 54.1% of those games).
• Cincinnati has been pegged as an underdog in 66 games this year and has walked away with the win 28 times (42.4%) in those games.
• Seattle has a record of 21-10 in games when bookmakers favor them by at least -145 on the moneyline.
• This season, the Reds have been victorious eight times in 24 chances when named as an underdog of at least +119 or longer on the moneyline.
• Based on this game's moneyline, the Mariners' implied win probability is 59.2%.
• The moneyline set for this matchup implies the Reds have a 45.7% chance of coming away with a victory in the contest.

Mariners vs. Reds: Betting the Spread & Total

• The Mariners have played in 100 games with set over/under, and have combined with opponents to go over the total 48 times (48-46-6).
• So far this season, Cincinnati and its opponents have hit the over in 55 of its 98 games with a total.
• The Mariners have put together a 39-61-0 record against the spread this season (covering only 39% of the time).
• The Reds are 53-45-0 against the spread in their 98 games that had a posted line this season.