Rays vs Nationals Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 30

Odds updated as of 4:17 a.m.

The Tampa Bay Rays versus the Washington Nationals is on the MLB schedule for Saturday.

Before you do any MLB betting on this game at FanDuel Sportsbook, here's what you need to know.

Rays vs Nationals Game Info

• Tampa Bay Rays (65-69) vs. Washington Nationals (53-81)
• Date: Saturday, August 30, 2025
• Time: 4:05 p.m. ET
• Venue: Nationals Park -- Washington, District of Columbia
• Coverage: MASN and FDSSUN

Rays vs Nationals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: TB: (-154) | WSH: (+130)
• Spread: TB: -1.5 (+102) | WSH: +1.5 (-122)
• Total: 9 -- Over: (-115) | Under: (-105)

Rays vs Nationals Probable Starting Pitchers

Probable Pitchers: Ryan Pepiot (Rays) - 9-10, 3.82 ERA vs Jake Irvin (Nationals) - 8-9, 5.40 ERA

The Rays will call on Ryan Pepiot (9-10) versus the Nationals and Jake Irvin (8-9). Pepiot and his team are 8-18-0 ATS this season when he starts. Pepiot's team has a record of 7-5 this season when he starts and they are the favorite on the moneyline. The Nationals have a 15-11-0 ATS record in Irvin's 26 starts with a set spread. The Nationals are 13-12 in Irvin's 25 starts this season that they were the moneyline underdog.

Rays vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Rays win (60.7%)

Rays vs Nationals Moneyline

• Washington is the underdog, +130 on the moneyline, while Tampa Bay is a -154 favorite despite being on the road.

Rays vs Nationals Spread

• The Nationals are +1.5 on the spread (-122 to cover), and Tampa Bay is +102 to cover the runline.

Rays vs Nationals Over/Under

• The over/under for the Rays versus Nationals contest on Aug. 30 has been set at 9, with -115 odds on the over and -105 odds on the under.

Bet on Tampa Bay Rays vs. Washington Nationals on FanDuel today!

Rays vs Nationals Betting Trends

• The Rays have won in 35, or 58.3%, of the 60 contests they have been named as odds-on favorites in this year.
• Tampa Bay has a record of 6-11 when favored by -154 or more this year.
• The Rays and their opponents have gone over the total this season in 54 of their 129 opportunities.
• The Rays have posted a record of 55-74-0 against the spread this season.
• The Nationals have won 43.1% of the games this season they were the underdog on the moneyline (47-62).
• Washington is 26-36 (winning 41.9% of its games) when playing as a moneyline underdog of +130 or longer.
• In the 128 games bookmakers have set an over/under for the Nationals, they have combined with opponents to go over the total 68 times (68-53-7).
• The Nationals have put together a 63-65-0 record ATS this season (covering 49.2% of the time).

Rays Player Leaders

• Junior Caminero has 130 hits, which is tops among Tampa Bay hitters this season, while batting .258 with 61 extra-base hits. He has an on-base percentage of .300 and a slugging percentage of .534.
• Among all qualifying hitters in the majors, he is 80th in batting average, 129th in on-base percentage, and 11th in slugging.
• Yandy Diaz leads the Rays with an OPS of .819. He has a slash line of .287/.346/.473 this season.
• His batting average ranks 19th among qualified players, his on-base percentage 46th, and his slugging percentage 41st.
• Diaz enters this matchup looking to extend his four-game hit streak. In his last five games he is hitting .421 with three doubles, a home run, two walks and an RBI.
• Brandon Lowe has 110 hits this season and has a slash line of .264/.320/.490.
• Lowe brings a two-game hitting streak into this game. During his last five outings he is batting .176 with two home runs, four walks and four RBIs.
• Chandler Simpson has no home runs, but 22 RBI and a batting average of .295 this season.

Nationals Player Leaders

• C.J. Abrams has racked up a slugging percentage of .455, a team-best for the Nationals. He's batting .270 with an on-base percentage of .331.
• Including all qualifying hitters in MLB, he ranks 45th in batting average, 73rd in on-base percentage and 58th in slugging percentage.
• Abrams brings a four-game hitting streak into this matchup. During his last five outings he is hitting .400 with a double, a walk and two RBIs.
• James Wood paces his team with 130 hits and a .357 on-base percentage, with a team-high .478 slugging percentage. He has a batting average of .260.
• He is currently 72nd in batting average, 28th in on-base percentage and 35th in slugging percentage among all qualified hitters.
• Luis Garcia has 25 doubles, a triple, 11 home runs and 23 walks while hitting .260.
• Josh Bell is batting .229 with 12 doubles, a triple, 16 home runs and 51 walks.

Rays vs Nationals Head to Head

• 8/29/2025: 4-1 TB (Favorite: Rays, Spread: -1.5, Total: 9, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 6/30/2024: 5-0 TB (Favorite: Rays, Spread: -1.5, Total: 8, Favorite Moneyline: -188, Underdog Moneyline: +158)
• 6/29/2024: 8-1 WSH (Favorite: Rays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 6/28/2024: 3-1 TB (Favorite: Rays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 4/5/2023: 7-2 TB (Favorite: Rays, Spread: -1.5, Total: 8.5, Favorite Moneyline: -275, Underdog Moneyline: +225)
• 4/4/2023: 10-6 TB (Favorite: Rays, Spread: -1.5, Total: 9, Favorite Moneyline: -176, Underdog Moneyline: +148)
• 4/3/2023: 6-2 TB (Favorite: Rays, Spread: -1.5, Total: 8, Favorite Moneyline: -184, Underdog Moneyline: +154)

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