Chicago Cubs vs Washington Nationals Prediction – August 12, 2026

Chicago Cubs vs Washington Nationals on Wednesday, August 12, 2026 sets up as a lefty-lefty matchup with David Peterson (6-7, 5.35 ERA) going for Chicago against top prospect Jackson Kent (MLB debut) for Washington. The Cubs are laying -154 on the moneyline with a -1.5 (+100) run line, while the total sits at 9.5 (under juiced) in a spot where both bullpens were forced to cover a lot of outs Tuesday night odds via BetUs Sportsbook.

Chicago Cubs vs Washington Nationals Game Info

MatchupChicago Cubs @ Washington Nationals
DateAugust 12, 2026
Time06:45 PM ET
LocationNationals Park (Washington, DC)
How to WatchMarquee Sports Network; Nationals.TV; FOX 5 (WTTG) / Gray Media simulcast

Chicago Cubs vs Washington Nationals Odds

MarketChicago CubsWashington Nationals
Moneyline-154+142
Run Line-1.5 (+100)+1.5 (-120)
TotalOver 9.5 (-102) / Under 9.5 (-120)

Chicago Cubs vs Washington Nationals Team Stats

TeamGamesRunsHRAVGOBPSLGOPSSBTeam ERAWHIPHR AllowedBBSO
Chicago Cubs120622151.250.339.418.757894.051.25173345905
Washington Nationals121649174.252.328.440.7681304.761.40164414889

Chicago Cubs vs Washington Nationals Starting Pitcher Stats

PitcherHand2026 MLB2026 Notes
David Peterson (CHC)LHP6-7, 5.35 ERA, 106.0 IP, 1.50 WHIP, 88 SOTraffic profile has been real (1.50 WHIP); Chicago likely needs length from him after a bullpen-heavy series opener.
Jackson Kent (WSH)LHP0-0, — ERA (MLB debut)Promoted from Triple-A to start; 9-4 with a 3.72 ERA in 20 starts between Triple-A and Double-A this season.

Chicago Cubs vs Washington Nationals Recent Form & Pitching Notes

Chicago Cubs (70-50) won Tuesday’s opener 8-6. Shota Imanaga went 4.2 innings with 4 earned runs allowed (3 HR), then the Cubs pieced it together with Ryan Rolison (1.1 IP, 0 R), Zac Thornton (1.0 IP, 0 R), Ryan Zeferjahn (0.2 IP, 2 ER), and Jacob Webb (1.1 IP, 0 R) for a 4-out save. Offensively it was power-driven: Pete Crow-Armstrong (HR), Alex Bregman (HR), and Seiya Suzuki (double + HR) all left the yard.

Washington Nationals (59-62) dropped that same 8-6 game after Jake Irvin couldn’t get through the fourth (3.1 IP, 5 ER, 88 pitches). The bullpen was leaned on hard: Tom Cosgrove (0.2 IP), Max Kranick (1.0 IP), Orlando Ribalta (1.0 IP), and Miles Mikolas (3.0 IP). The bats showed they can punish mistakes (homers from CJ Abrams, Jacob Young, and Dylan Crews) and they chipped in two more in the eighth to make it interesting, but the pitching staff kept putting them behind the eight ball.

  • Chicago Cubs totals: 64-56 this season
  • Washington Nationals totals: 64-52-5 this season
  • Chicago Cubs run line: 61-59 this season
  • Washington Nationals run line: 69-52 this season

Chicago Cubs vs Washington Nationals Breakdown

Kent making his debut is the headline, but the market still has to price the innings behind him and Washington’s pen just asked Mikolas for three innings Tuesday. If Kent’s command is anything short of sharp early, this can snowball fast because Chicago can stack quality at-bats and force bullpen decisions by the middle innings.

On the other side, Peterson’s 5.35 ERA and 1.50 WHIP aren’t the profile you want laying a big road price with, especially vs a Nationals lineup that’s already tagged Cubs pitching for three homers in the series opener and has been a top-end power/speed offense by raw output (runs, HR, steals). This game doesn’t need perfect hitting conditions to get to double digits both starters can put runners on, and both pens are coming off real workload.

Chicago Cubs vs Washington Nationals Best Bet

Over 9.5 (-102) (3 out of 5 units)
Peterson’s WHIP invites baserunners, Kent’s debut is a wild card, and Washington’s bullpen usage (including a 3-inning Mikolas appearance) is a problem if Kent doesn’t give them legit length.

Predicted Score

Our computer projections model for this matchup predicts a final score of Chicago Cubs 6, Washington Nationals 5.