2026 New York · U.S. House
NY-21 House race odds
As of Oct 2, 2026, prediction markets give Republican Anthony Constantino a 83% chance of winning the 2026 race for NY-21 over Democrat Blake Gendebien (Kalshi 83%, Polymarket 83%).
Updated · prices refresh every 10 minutes
- Market rating
- Likely R
- Kalshi (D / R)
- 17.5% / 82.5%
- Polymarket (D / R)
- 17.3% / 82.7%
- Gap between exchanges
- 0.2 pts
- Election Day
- Nov 3, 2026 (32 days)
Price history
Democratic odds are essentially unchanged since Oct 2, 2026.
Every candidate, by exchange
Each exchange's prices rescaled to add up to 100%. Kalshi prices are the bid–ask midpoint; Polymarket prices are its displayed price.
Kalshi open market ↗
| Outcome | Chance | Volume |
|---|---|---|
| Anthony Constantino (R) | 82.5% | $35K |
| Blake Gendebien (D) | 17.5% | $36K |
Polymarket open market ↗
| Outcome | Chance | Volume |
|---|---|---|
| Anthony Constantino (R) | 82.7% | $37K |
| Blake Gendebien (D) | 17.3% | $36K |
Questions about this race
Who is favored to win the 2026 NY-21 House race?
As of Oct 2, 2026, prediction markets give Republican Anthony Constantino a 83% chance of winning the 2026 race for NY-21 over Democrat Blake Gendebien (Kalshi 83%, Polymarket 83%).
What do Kalshi and Polymarket say?
Kalshi: Democrats 18%, Republicans 83%. Polymarket: Democrats 17%, Republicans 83%. The two exchanges differ by 0.2 points.
How have the odds moved this week?
Democratic odds are essentially unchanged since Oct 2, 2026.
When is the 2026 election?
Election Day is Nov 3, 2026, 32 days from now.
Other New York races in 2026
- New York GovernorD 95%
- NY-01 HouseR 83%
- NY-10 HouseD 99%
- NY-11 HouseR 95%
- NY-12 HouseD 98%
- NY-13 HouseD 98%
- NY-14 HouseD 97%
- NY-15 HouseD 98%
- NY-16 HouseD 97%
- NY-17 HouseD 63%
- NY-18 HouseD 95%
- NY-19 HouseD 99%
- NY-02 HouseR 86%
- NY-20 HouseD 97%
- NY-22 HouseD 95%
- NY-23 HouseR 95%
- NY-24 HouseR 95%
- NY-25 HouseD 98%
- NY-26 HouseD 97%
- NY-03 HouseD 88%
- NY-04 HouseD 90%
- NY-05 HouseD 98%
- NY-06 HouseD 98%
- NY-07 HouseD 98%
- NY-08 HouseD 98%
- NY-09 HouseD 98%
Closest House races in 2026
Data
Price history (JSON)All 2026 races (JSON)All 2026 races (CSV)2026 dashboardMethodology
Cite as: Parlay the People, “2026 NY-21 House race,” https://parlaythepeople.com/2026/house/ny-21/, accessed Oct 2, 2026. Prediction-market prices are crowd forecasts, not certainties, and nothing here is betting or investment advice.