Diamondbacks vs Nationals Prediction, Odds, Moneyline, Spread & Over/Under for May 30

Odds updated as of 9:11 p.m.

MLB action on Friday includes the Arizona Diamondbacks taking on the Washington Nationals.

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

Diamondbacks vs Nationals Game Info

• Arizona Diamondbacks (27-29) vs. Washington Nationals (26-30)
• Date: Friday, May 30, 2025
• Time: 9:40 p.m. ET
• Venue: Chase Field -- Phoenix, Arizona
• Coverage: ARID and MASN2

Diamondbacks vs Nationals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: ARI: (-225) | WSH: (+188)
• Spread: ARI: -1.5 (-111) | WSH: +1.5 (-108)
• Total: 9.5 -- Over: (-100) | Under: (-122)

Diamondbacks vs Nationals Probable Starting Pitchers

Probable Pitchers: Merrill Kelly (Diamondbacks) - 5-2, 3.52 ERA vs Jake Irvin (Nationals) - 4-1, 3.42 ERA

The probable starters are Merrill Kelly (5-2) for the Diamondbacks and Jake Irvin (4-1) for the Nationals. When Kelly starts, his team is 4-6-0 against the spread this season. Kelly's team has been victorious in 80% of the games he's started as the moneyline favorite with a record of 4-1. When Irvin starts, the Nationals are 7-4-0 against the spread. The Nationals are 6-5 in Irvin's 11 starts this season that they were the underdog on the moneyline.

Diamondbacks vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Diamondbacks win (67.1%)

Diamondbacks vs Nationals Moneyline

• Looking at the moneyline for Diamondbacks-Nationals, Arizona is the favorite at -225, and Washington is +188 playing on the road.

Diamondbacks vs Nationals Spread

• The Nationals are at the Diamondbacks, and are +1.5 on the runline. The Nationals are -111 to cover the spread, and the Diamondbacks are -108.

Diamondbacks vs Nationals Over/Under

• Diamondbacks versus Nationals, on May 30, has an over/under of 9.5, with the over being -100 and the under -122.

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Diamondbacks vs Nationals Betting Trends

• The Diamondbacks have been victorious in 18, or 51.4%, of the 35 contests they have been chosen as favorites in this season.
• This year Arizona has won two of four games when listed as at least -225 on the moneyline.
• The Diamondbacks and their opponents have hit the over in 25 of their 55 games with a total set by oddsmakers this season.
• The Diamondbacks are 25-30-0 against the spread in their 55 games with a line set by sportsbooks this season.
• The Nationals are 23-20 in games they were the underdog on the moneyline (winning 53.5% of those games).
• Washington has played as a moneyline underdog of +188 or longer in only one game this season, which it lost.
• In the 54 games bookmakers have set an over/under for the Nationals, they have combined with opponents to go over the total 27 times (27-26-1).
• The Nationals have covered 55.6% of their games this season, going 30-24-0 against the spread.

Diamondbacks Player Leaders

• Geraldo Perdomo has 56 hits this season and a team-best OBP of .391. He has a .292 batting average and a slugging percentage of .453.
• Among all qualifying hitters in the majors, he ranks 21st in batting average, 12th in on-base percentage, and 50th in slugging.
• Corbin Carroll leads Arizona in total hits (60) this season while batting .259 with 32 extra-base hits. He's slugging .560 with an on-base percentage of .328.
• His batting average ranks 73rd among qualified players, his on-base percentage 81st, and his slugging percentage ninth.
• Carroll has picked up at least one hit in two games in a row. During his last five outings he is hitting .087 with a double, a home run and an RBI.
• Josh Naylor has an OPS of .806, fueled by an OBP of .353 and a team-best slugging percentage of .452 this season.
• Naylor brings a seven-game hitting streak into this game. In his last 10 outings he is hitting .244 with a double, a triple, a home run, a walk and six RBIs.
• Eugenio Suarez has been key for Arizona with 45 hits, an OBP of .310 plus a slugging percentage of .500.

Nationals Player Leaders

• James Wood has an on-base percentage of .385, a slugging percentage of .571, and has 61 hits, all club-highs for the Nationals (while batting .288).
• Including all qualifying players in MLB, he ranks 27th in batting average, 17th in on-base percentage and fifth in slugging percentage.
• Wood hopes to build on a five-game hitting streak in this matchup. In his last five games he is batting .316 with three doubles, three home runs, three walks and nine RBIs.
• C.J. Abrams has 11 doubles, two triples, eight home runs and 12 walks while batting .279. He's slugging .506 with an on-base percentage of .342.
• Including all qualifying players, he ranks 37th in batting average, 57th in on-base percentage and 25th in slugging percentage.
• Luis Garcia has 11 doubles, five home runs and 12 walks while hitting .250.
• Nathaniel Lowe is batting .224 with nine doubles, eight home runs and 20 walks.

Diamondbacks vs Nationals Head to Head

• 4/6/2025: 5-4 WSH (Favorite: Diamondbacks, Spread: -1.5, Total: 7.5, Favorite Moneyline: -180, Underdog Moneyline: +152)
• 4/5/2025: 4-3 WSH (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 4/4/2025: 6-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -146, Underdog Moneyline: +124)
• 7/31/2024: 5-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8, Favorite Moneyline: -172, Underdog Moneyline: +144)
• 7/30/2024: 17-0 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -166, Underdog Moneyline: +140)
• 7/29/2024: 9-8 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -164, Underdog Moneyline: +138)
• 6/20/2024: 5-2 ARI (Favorite: Nationals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 6/19/2024: 3-1 WSH (Favorite: Diamondbacks, Spread: -1.5, Total: 9.5, Favorite Moneyline: -172, Underdog Moneyline: +144)
• 6/18/2024: 5-0 ARI (Favorite: Nationals, Spread: -1.5, Total: 9, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 6/22/2023: 5-3 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -154, Underdog Moneyline: +130)

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