Seattle Mariners at Washington Nationals odds, picks and predictions

Analyzing Tuesday’s Seattle Mariners at Washington Nationals odds and lines, with MLB expert picks and predictions.

The Seattle Mariners (45-42) and the Washington Nationals (30-58) open a 2-game interleague set Tuesday at Nationals Park in Washington, D.C. First pitch is scheduled for 7:05 p.m. ET. Let’s analyze Tipico Sportsbook‘s lines around the Mariners vs. Nationals odds with MLB picks and predictions.

Season series: This is the first meeting since May 2017.

The Mariners have rattled off 8 consecutive victories, including four 1-run games. Seattle is 6-5 in 11 interleague games this season.

The Nationals are in a tailspin, dropping 4 straight outings, and 9 of the previous 10 contests. Washington is 5-6 in interleague play.

Mariners vs. Nationals projected starters

RHP Chris Flexen vs. RHP Josiah Gray

Flexen (5-8, 4.00 ERA) makes his 17th start of the season. He has a 1.40 WHIP, 3.2 BB/9 and 6.6 K/9 through 90 IP.

  • Is 2-5 with a 4.07 ERA with a .257 opponent batting average with 34 K across 48 2/3 IP in 9 road outings.
  • Picked up a win with 6 2/3 scoreless IP, 4 H, 3 BB and 8 K at the San Diego Padres July 4 in his most recent interleague start.

Gray (7-5, 4.14 ERA) makes his 17th start of the season. He has a 1.24 WHIP, 3.7 BB/9 and 10.2 K/9 through 87 IP.

  • Is 2-5 with a 6.42 ERA across 40 2/3 IP in 8 starts at Nationals Park and 5-0 with a 2.14 ERA in 8 starts on the road.
  • Is 1-1 with a 5.40 ERA with 17 K through 18 2/3 IP across 3 starts vs. AL opponents this season.

Mariners vs. Nationals odds and lines

Odds provided by Tipico Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 5:07 a.m. ET.

  • Money line (ML): Mariners -108 (bet $108 to win $100) | Nationals -112 (bet $112 to win $100)
  • Run line (RL)/Against the spread (ATS): Mariners -1.5 (+145) | Nationals +1.5 (-180)
  • Over/Under (O/U): 9.5 (O: -110 | U: -110)

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Mariners vs. Nationals picks and predictions

Prediction

Mariners 6, Nationals 5

Money line

The MARINERS (-108) are red-hot right now with 16 wins in their last 19 games and while cashing in 8 of their last 9 road outings. Seattle has also picked up a victory in 14 of its last 17 outings against a right-handed starting pitcher.

Gray has also struggled at home and it is hard to envision him cooling off the M’s right now.

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Run line/Against the spread

The Nationals +1.5 (-180) are a little on the expensive side if you’d like a little insurance. Washington wouldn’t be a terrible play if the price was right, as Seattle has won 4 of its 8 games during the win streak by 1 run.

PASS.

Over/Under

The OVER 9.5 (-110) is the lean in the interleague opener.

The Over has hit in 4 straight series openers for the Mariners while going 20-5-1 in their last 26 interleague road games.

The Under has dominated for Washington lately, but Gray has been giving at home, and the Nats should be able to get to Flexen for a few.

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