Nationals vs Rockies Prediction, Odds, Moneyline, Spread & Over/Under for June 18

Odds updated as of 5:13 a.m.

The Washington Nationals will face the Colorado Rockies in MLB action on Wednesday.

Here's what you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Nationals vs Rockies Game Info

• Washington Nationals (30-43) vs. Colorado Rockies (16-57)
• Date: Wednesday, June 18, 2025
• Time: 6:45 p.m. ET
• Venue: Nationals Park -- Washington, District of Columbia
• Coverage: MASN and COLR

Nationals vs Rockies Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: WSH: (-178) | COL: (+150)
• Spread: WSH: -1.5 (+118) | COL: +1.5 (-142)
• Total: 9.5 -- Over: (-100) | Under: (-122)

Nationals vs Rockies Probable Starting Pitchers

Probable Pitchers: Mitchell Parker (Nationals) - 4-7, 4.96 ERA vs German Marquez (Rockies) - 2-8, 6.62 ERA

The Nationals will give the nod to Mitchell Parker (4-7, 4.96 ERA), who is eyeing win No. 5 on the season, and the Rockies will counter with German Marquez (2-8, 6.62 ERA). Parker's team is 7-6-0 against the spread in his starts this season. Parker's team is 1-1 this season when he starts and they're favored on the moneyline. The Rockies have a 5-9-0 ATS record in Marquez's 14 starts with a set spread. The Rockies are 3-10 in Marquez's 13 starts this season that they were the underdog on the moneyline.

Nationals vs Rockies Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Nationals win (58.1%)

Nationals vs Rockies Moneyline

• Colorado is a +150 underdog on the moneyline, while Washington is a -178 favorite at home.

Nationals vs Rockies Spread

• The Rockies are +1.5 on the run line against the Nationals. The Rockies are -142 to cover, and the Nationals are +118.

Nationals vs Rockies Over/Under

• Nationals versus Rockies on June 18 has an over/under of 9.5 runs, with the odds on the over -100 and the under set at -122.

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Nationals vs Rockies Betting Trends

• The Nationals have won in two, or 15.4%, of the 13 contests they have been named as odds-on favorites in this year.
• Washington has played as a favorite of -178 or more just one time this year and came away with a loss in that game.
• The Nationals' games have gone over the total in 34 of their 70 opportunities.
• The Nationals have posted a record of 36-34-0 against the spread this season.
• The Rockies have gone 15-54 in games they were listed as the moneyline underdog (winning 21.7% of those games).
• Colorado has a record of 10-43 when playing as a moneyline underdog with odds of +150 or longer (18.9%).
• In the 72 games bookmakers have set an over/under for the Rockies, they have combined with opponents to go over the total 30 times (30-39-3).
• The Rockies have a 28-44-0 record against the spread this season.

Nationals Player Leaders

• James Wood leads Washington with 77 hits and an OBP of .378, plus a team-best slugging percentage of .544. He's batting .281.
• Among all qualified hitters in MLB, he is 34th in batting average, 18th in on-base percentage, and eighth in slugging.
• C.J. Abrams is batting .275 with 15 doubles, two triples, nine home runs and 16 walks. He's slugging .470 with an on-base percentage of .346.
• He ranks 45th in batting average, 57th in on-base percentage and 39th in slugging in the majors.
• Luis Garcia is batting .259 with a .408 slugging percentage and 31 RBI this year.
• Nathaniel Lowe is batting .230 with a .298 OBP and 45 RBI for Washington this season.

Rockies Player Leaders

• Hunter Goodman has put up a slugging percentage of .522 and has 77 hits, both team-best numbers for the Rockies. He's batting .285 and with an on-base percentage of .326.
• He ranks 28th in batting average, 81st in on-base percentage and 13th in slugging percentage among all qualified batters in MLB.
• Jordan Beck has 12 doubles, four triples, eight home runs and 18 walks while batting .260. He's slugging .457 with an on-base percentage of .322.
• He is currently 71st in batting average, 89th in on-base percentage and 52nd in slugging percentage among all qualifying batters.
• Ryan McMahon has accumulated an on-base percentage of .333, a team-high for the Rockies.
• Mickey Moniak is batting .237 with five doubles, five triples, nine home runs and 13 walks.

Nationals vs Rockies Head to Head

• 6/17/2025: 10-6 COL (Favorite: Nationals, Spread: -1.5, Total: 9, Favorite Moneyline: -198, Underdog Moneyline: +166)
• 6/16/2025: 6-4 COL (Favorite: Nationals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 4/20/2025: 3-1 COL (Favorite: Nationals, Spread: -1.5, Total: 10.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 4/20/2025: 3-2 WSH (Favorite: Rockies, Spread: -1.5, Total: 10.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 4/19/2025: 12-11 WSH (Favorite: Nationals, Spread: -1.5, Total: 9.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 8/22/2024: 8-3 WSH (Favorite: Nationals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 8/21/2024: 6-1 WSH (Favorite: Nationals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 8/20/2024: 3-1 COL (Favorite: Nationals, Spread: -1.5, Total: 8, Favorite Moneyline: -156, Underdog Moneyline: +132)
• 6/23/2024: 2-1 WSH (Favorite: Nationals, Spread: -1.5, Total: 10.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 6/22/2024: 8-7 COL (Favorite: Nationals, Spread: -1.5, Total: 10.5, Favorite Moneyline: -116, Underdog Moneyline: -102)

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