Chicago Cubs vs Washington Nationals Prediction Market Odds, August 11, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Cubs | -1.5 49%49% | O 9.5 45%45% | 49%49% | 49% Kalshi |
â–¶Nationals | +1.5 51%51% | U 9.5 55%55% | 23%23% | 23% Kalshi |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
â–¶Chicago Cubs | -1.5 | O 9.5 | 49% Kalshi | |
â–¶Washington Nationals | +1.5 | U 9.5 | 23% Kalshi |
Chicago is the 60.5c road favorite (61c on Kalshi, 60c on Polymarket) to open a three-game set at Nationals Park, and the market has kept the Cubs in that same band all week. Chicago (69-50, 34-26 on the road) starts Shota Imanaga (8-9, 3.60 ERA) against a Washington club that sits 59-61 overall and 26-34 at home but has won three straight. Washington trades at 41c on both books. First pitch is 6:45 PM ET on Tuesday, August 11, 2026, and the live board above carries the current prices.
Chicago arrives in Washington at 69-50 with a 34-26 road split, the profile that keeps a team priced above 60c away from home. The Cubs took two of three at Kansas City over the weekend, winning 6-4 and 10-2 around a 6-3 loss, and the moneyline barely moved across that series: 63c, then 62c, then 61c. A new opponent has not changed the read. Chicago opened this board at 60c on Kalshi and has ticked up to 61c, with Polymarket sitting a point behind at 60c.
Cubs vs Nationals Market Context
Washington enters at 59-61, thirteen games behind Atlanta (71-47) in the National League East, but the Nationals are playing their best baseball of the month. They swept Cincinnati at home by scores of 5-3, 8-2 and 7-1 after dropping five of six on the road at Atlanta and Philadelphia. The 41c price on Washington reflects the season shape more than the last three days: a home team at 26-34 in its own park is a reasonable 41c against a division contender, and the sweep of the Reds did not move the underdog price.
The cross-platform read is tight. Kalshi has Chicago at 61c and Washington at 41c. Polymarket has Chicago at 60c and Washington at 41c. That one-cent difference on the Cubs side is inside normal two-book noise on a small board, and the Kalshi two-sided sum of 102c is the exchange spread, not a mispricing. Kalshi carries almost all of the liquidity: the Chicago moneyline has traded roughly $5.9K in cumulative volume on Kalshi against about $150 on Polymarket, and the full board sits near $6.9K.
The derivative markets are thinner and mostly one-sided. The Chicago run line (-1.5) prices at 48c on Polymarket with no Kalshi market posted, which reads a two-run Cubs win as close to a coin flip behind a 60.5c straight-up price. The total is listed at 8.5 with the over at 56c and at 9.5 with the over at 45c, both Polymarket only. A first-inning run market trades at 51c on Kalshi and 48c on Polymarket, the tightest two-sided pair on the board outside the moneyline.
Cubs vs Nationals Pitching Matchup
Shota Imanaga (8-9, 3.60 ERA) is the reason Chicago prices where it does. The win-loss record understates him: a 3.60 ERA is close to a run and a half better than what Washington sends out, and it is the single largest input into a 60.5c road price. Chicago has now been favored in every one of its last four games, at 63c, 62c, 61c and 61c, without a single day where the market questioned the road status.
Jake Irvin (2-5, 5.37 ERA) starts for Washington in his 13th outing of the season. The 1.77-run ERA gap between the two starters is the cleanest explanation for why a Nationals team on a three-game winning streak is still a 41c home underdog. Washington has scored in volume during the streak (20 runs across the three wins over Cincinnati), which is the argument for the over at 56c on the 8.5 total rather than the argument for the moneyline.
The standings frame the stakes on the visitor side. Chicago sits 5.5 games behind Milwaukee (74-44) in the National League Central with this three-game road set followed by a home series against St. Louis. Washington, thirteen back in the East, is playing for next season, which matters for bullpen usage and late-inning decisions in a one-run game.
When the Cubs vs Nationals Market Resolves
The moneyline resolves to the team that wins the game at Nationals Park on Tuesday, August 11, 2026, first pitch 6:45 PM ET. Kalshi and Polymarket both settle on the official final score once the game goes final, including extra innings. A postponement pushes settlement to the makeup date under each platform's rules rather than voiding the contract.
Key Cubs vs Nationals Catalysts
Starting pitching: Imanaga (3.60 ERA) against Irvin (5.37 ERA) is a 1.77-run gap and the primary driver of the 60.5c line.
Chicago road form: 34-26 away from Wrigley Field, including two wins in three games at Kansas City.
Washington momentum: a three-game home sweep of Cincinnati by 5-3, 8-2 and 7-1 against a 26-34 home record.
Cross-platform spread: 61c on Kalshi versus 60c on Polymarket, with Kalshi holding roughly $5.9K of the moneyline volume.
Derivative read: the Cubs run line (-1.5) at 48c and the 8.5 total over at 56c, both Polymarket only.
Related Cubs vs Nationals Markets
Chicago's previous board, the Cubs at Kansas City series finale, is where the 61c road-favorite band was set. Washington's last board, the Reds at Nationals finale, covered the third leg of the sweep that preceded this series. Full team boards for both clubs live at the Chicago Cubs hub and the Washington Nationals hub, and every listed game on the slate is indexed on the MLB prediction market hub.
Resolution Criteria
Resolves to the team that wins the game between the Chicago Cubs and the Washington Nationals at Nationals Park on Tuesday, August 11, 2026, scheduled for 6:45 PM ET. The winning side pays $1 per share and the losing side resolves to $0, with the official final score as the source of truth including any extra innings. Run-line contracts (-1.5) settle on the final margin and total contracts (8.5, 9.5, and the first-five-innings variants) settle on combined runs scored over the settlement window. If the game is postponed, both platforms settle on the completed makeup game under their published rules rather than voiding; a game called early but ruled official settles on the score at the point of stoppage.
Key Factors
- Shota Imanaga (8-9, 3.60 ERA) versus Jake Irvin (2-5, 5.37 ERA), a 1.77-run ERA gap driving the 60.5c Chicago price
- Chicago road form: 34-26 away from Wrigley Field and two wins in three games at Kansas City
- Washington home split of 26-34 against a three-game home sweep of Cincinnati by 5-3, 8-2 and 7-1
- Cross-platform spread on the Cubs moneyline: 61c on Kalshi, 60c on Polymarket, with Kalshi holding about $5.9K of the volume
- National League Central stakes: Chicago sits 5.5 games behind Milwaukee (74-44) opening a three-game road set
- Derivative read: Cubs run line (-1.5) at 48c and the 8.5 total over at 56c, both listed on Polymarket only
What are the current Cubs vs Nationals odds?
As of August 11, 2026, Chicago is the 60.5c favorite, priced at 61c on Kalshi and 60c on Polymarket. Washington trades at 41c on both platforms. The live board carries the current prices as the line moves toward the 6:45 PM ET first pitch.
Who is favored in Cubs vs Nationals on August 11, 2026?
Chicago, at an implied probability near 60.5%. Washington sits near 41% as the home underdog. The Cubs are 69-50 with a 34-26 road record, the Nationals 59-61 with a 26-34 home record.
Who are the probable starting pitchers for Cubs vs Nationals?
Shota Imanaga (8-9, 3.60 ERA) starts for Chicago and Jake Irvin (2-5, 5.37 ERA) starts for Washington in his 13th outing of the season. The 1.77-run ERA gap is the largest single input into the 60.5c Chicago price.
Where can I trade the Cubs vs Nationals market?
Both Kalshi and Polymarket list the moneyline. Kalshi holds nearly all of the liquidity, roughly $5.9K in cumulative volume on the Chicago side against about $150 on Polymarket, with the full board near $6.9K.
What is the spread and total for Cubs vs Nationals?
The Chicago run line (-1.5) prices at 48c on Polymarket and the total is listed at 8.5 with the over at 56c and at 9.5 with the over at 45c. Kalshi has not posted prices on the run line or the totals for this game.
What should I watch before the Cubs vs Nationals market resolves?
Whether Chicago holds the 60c to 63c road-favorite band it has occupied for four straight games, and whether Washington's three-game scoring run (20 runs across the Cincinnati sweep) shows up in the 8.5 total rather than the moneyline.