Nationals vs. Mariners Dunkel MLB Picks, Predictions and Prop Bets - June 13

James Wood brings a two-game homer streak into the Washington Nationals' game versus the Seattle Mariners whose Dominic Canzone has also homered in two consecutive games. It begins at 4:05 p.m. ET on Saturday, at Nationals Park. Cade Cavalli (3-4, 3.88 ERA) will start for the Nationals, who are 35-35 this season and fourth in the NL East. Luis Castillo (2-5, 5.16 ERA) is expected to start for the Mariners, who are 37-34 and first in the AL West.

Bookmakers have made the Nationals a decent moneyline favorite (-120) at home over the Mariners (+100). The game's total is set at 9.

Nationals vs. Mariners Odds, Game Time

• Game day: Saturday, June 13, 2026
• Game time: 4:05 p.m. ET
• Location: Washington D.C.
• Stadium: Nationals Park
• Favorite: Nationals (-120)
• Underdog: Mariners (+100)
• Over/under: 9

How to Watch Nationals vs. Mariners

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

Bet now on FanDuel Sportsbook!

Nationals vs. Mariners: Betting the Moneyline

• The Nationals are 1-4 in games they were favored on the moneyline (winning 20% of those games).
• Seattle has come away with two wins in the five contests it has been listed as the underdogs in this season.
• Washington has played as favorites of -120 or more twice this season and split those games.
• The Mariners have played as an underdog of +100 or more just one time this year and came away with a loss in that game.
• Based on this matchup's moneyline, the Nationals have an implied win probability of 54.5%.
• The Mariners have an implied victory probability of 50% according to the moneyline set by oddsmakers for this matchup.

Nationals vs. Mariners: Betting the Spread & Total

• The Nationals have had an over/under set by bookmakers 70 times, and have combined with opponents to go over the total in 43 of those games (43-23-4).
• Seattle and its opponents have hit the over in 34 of its 71 games with a total this season.
• The Nationals have put together a 43-27-0 record ATS this season.
• The Mariners are 27-44-0 against the spread in their 71 games that had a posted line this season.