GAPS
505 gaps
340/505 gaps on this page are still profitable after both venues' trading fees. We show every real price gap, including the ones fees turn into a loss — sites that show more "arbitrage" are usually counting the fees you would pay as profit.
| Outcome | Event | Buy at | Buy opposite | Capital | Hold | Fees | Net edge | Profit | Return |
|---|---|---|---|---|---|---|---|---|---|
| Jahmyr Gibbs | Offensive Player of the Year Winner? — 2026-… | 16.0%Polymarket | 83.0%Kalshi | $20 | ~161d | −1.7¢ | -0.7¢ | −$0 | -0.7% |
| Flávio Bolsonaro | Brazil Presidential Election | 58.9%Polymarket | 40.0%Kalshi | $8 | ~13d | −2.6¢ | -1.5¢ | −$0 | -1.6% |
| Eduardo Paes | Rio de Janeiro Governor Election Winner | 78.5%Polymarket | 21.0%Kalshi | $10 | ~14d | −1.8¢ | -1.3¢ | −$0 | -1.3% |
| Republican | PA-17 House winner? — In 2026 | 5.7%Kalshi | 94.0%Polymarket | $45 | ~44d | −0.6¢ | -0.3¢ | −$0 | -0.3% |
| 8 | How many House seats will Democrats win in V… | 30.0%Kalshi | 68.0%Polymarket | $39 | ~43d | −2.3¢ | -0.3¢ | −$0 | -0.3% |
| Tom Cruise | Oscar Winner: Best Actor — In 2027 | 14.0%Kalshi | 85.0%Polymarket | $30 | ~175d | −1.5¢ | -0.5¢ | −$0 | -0.5% |
| Los Angeles Dodgers | MLB: 2026 National League Champion | 40.0%Polymarket | 59.0%Kalshi | $10 | ~41d | −2.4¢ | -1.4¢ | −$0 | -1.4% |
| Orlando Sanchez | 2026 Harris County Judge Election Winner | 9.4%Polymarket | 90.0%Kalshi | $39 | ~44d | −1.0¢ | -0.4¢ | −$0 | -0.4% |
| 19 | How many House seats will Democrats win in N… | 26.0%Polymarket | 72.0%Kalshi | $88 | ~43d | −2.2¢ | -0.2¢ | −$0 | -0.2% |
| San Diego Padres | MLB: 2026 National League Champion | 8.0%Kalshi | 91.8%Polymarket | $30 | ~41d | −0.7¢ | -0.5¢ | −$0 | -0.5% |
| Democratic Party | FL-25 House Election Winner | 68.0%Polymarket | 31.0%Kalshi | $12 | ~43d | −2.4¢ | -1.4¢ | −$0 | -1.4% |
| Republican | Wisconsin Governor Election Winner | 16.0%Polymarket | 83.0%Kalshi | $34 | ~43d | −1.5¢ | -0.5¢ | −$0 | -0.5% |
| Republican | Oregon Governor winner? — In 2026 | 14.0%Polymarket | 85.0%Kalshi | $57 | ~43d | −1.4¢ | -0.4¢ | −$0 | -0.4% |
| Karen Harper | Saanich, BC Mayoral Election Winner | 35.0%Kalshi | 64.0%Polymarket | $15 | ~26d | −2.5¢ | -1.5¢ | −$0 | -1.5% |
| James Cook III | Pro Football: 2026-27 Rushing Touchdowns Lea… | 6.9%Polymarket | 93.0%Kalshi | $34 | ~114d | −0.8¢ | -0.7¢ | −$0 | -0.7% |
| Trinidad Chambliss | Pro Football #1 Overall Pick in 2027 — 1st P… | 13.2%Polymarket | 86.0%Kalshi | $60 | ~214d | −1.2¢ | -0.4¢ | −$0 | -0.4% |
| Democratic | TX-35 House winner? — In 2026 | 63.0%Kalshi | 36.0%Polymarket | $15 | ~44d | −2.6¢ | -1.6¢ | −$0 | -1.6% |
| The Odyssey | Oscars 2027: Best Cinematography Winner | 57.0%Polymarket | 41.0%Kalshi | $25 | ~175d | −2.9¢ | -0.9¢ | −$0 | -0.9% |
| Republican | Georgia Governor winner? — In 2026 | 40.0%Polymarket | 58.0%Kalshi | $36 | ~43d | −2.7¢ | -0.7¢ | −$0 | -0.7% |
| Dallas | MLS Cup Winner 2026 | 4.0%Kalshi | 95.7%Polymarket | $266 | ~89d | −0.4¢ | -0.1¢ | −$0 | -0.1% |
| Democratic Party | CO-07 House Election Winner | 94.0%Polymarket | 5.9%Kalshi | $50 | ~44d | −0.6¢ | -0.5¢ | −$0 | -0.5% |
| Georgia | College Football Playoff Qualifiers — 2026-2… | 77.0%Gemini | 22.0%Kalshi | $18 | ~100d | −2.4¢ | -1.4¢ | −$0 | -1.5% |
| Jonathan Kreiss-Tomkins | Alaska Governor Election Winner | 82.0%Kalshi | 17.1%Polymarket | $40 | ~43d | −1.6¢ | -0.7¢ | −$0 | -0.7% |
| Republican | MD-06 House Election Winner | 6.0%Polymarket | 93.4%Kalshi | $498 | ~44d | −0.7¢ | -0.1¢ | −$0 | -0.1% |
| Yes December 31, 2026 | New "Stranger Things" episode released by...… | 2.7%Polymarket | 97.0%Kalshi | $942 | ~102d | −0.3¢ | -0.0¢ | −$0 | -0.0% |
| No December 31, 2026 | New "Stranger Things" episode released by...… | 97.0%Kalshi | 2.7%Polymarket | $942 | ~102d | −0.3¢ | -0.0¢ | −$0 | -0.0% |
| Before 2027 | Will the US reopen its embassy in Iran? — Be… | 3.7%Kalshi | 96.0%Polymarket | $334 | ~102d | −0.4¢ | -0.1¢ | −$0 | -0.1% |
| Democratic | MN-02 House winner? — In 2026 | 92.3%Kalshi | 7.0%Polymarket | $596 | ~45d | −0.8¢ | -0.1¢ | −$0 | -0.1% |
| Republican | IA-01 House winner? — In 2026 | 22.0%Polymarket | 77.0%Kalshi | $39 | ~44d | −1.9¢ | -0.9¢ | −$0 | -0.9% |
| San Diego State Aztecs | College Football Pac-12 Championship Winner … | 11.0%Kalshi | 88.0%Polymarket | $178 | ~105d | −1.2¢ | -0.2¢ | −$0 | -0.2% |
| Arizona St. | College Football Big 12 Championship Winner … | 5.0%Kalshi | 94.9%Polymarket | $85 | ~104d | −0.6¢ | -0.5¢ | −$0 | -0.5% |
| Cleveland Guardians | MLB: 2026 American League Champion | 14.9%Polymarket | 84.0%Gemini | $181 | ~41d | −1.3¢ | -0.2¢ | −$0 | -0.2% |
| Democratic | New Mexico Governor winner? — In 2026 | 93.9%Kalshi | 6.0%Polymarket | $77 | ~43d | −0.6¢ | -0.5¢ | −$0 | -0.5% |
| Republican | OH-15 House winner? | 76.0%Polymarket | 23.0%Kalshi | $43 | ~43d | −2.0¢ | -1.0¢ | −$0 | -1.0% |
| 47 | How many House seats will Democrats win in C… | 20.0%Kalshi | 79.0%Polymarket | $55 | ~43d | −1.8¢ | -0.8¢ | −$0 | -0.8% |
| T.J. Watt | Defensive Player of the Year Winner? — 2026-… | 18.3%Polymarket | 81.0%Kalshi | $40 | ~144d | −1.8¢ | -1.1¢ | −$0 | -1.1% |
| Detroit Tigers | Washington vs Detroit | 55.0%Polymarket | 44.0%Kalshi | $23 | ~5d | −3.0¢ | -2.0¢ | −$0 | -2.0% |
| Alexi Giannoulias | Chicago mayoral election winner? (2027) — In… | 62.0%Kalshi | 36.0%Polymarket | $79 | ~156d | −2.6¢ | -0.6¢ | −$0 | -0.6% |
| Jack Lowden | Next James Bond film: Actor cast as James Bo… | 42.8%Polymarket | 57.0%Kalshi | $17 | ~101d | −2.9¢ | -2.7¢ | −$0 | -2.7% |
| Cincinnati Reds | Cincinnati Reds vs Atlanta Braves | 35.0%Polymarket | 64.0%Kalshi | $28 | ~5d | −2.8¢ | -1.8¢ | −$0 | -1.8% |
| Andrea Kaiser | Niagara-on-the-Lake, ON Mayoral Election Win… | 35.0%Kalshi | 64.0%Polymarket | $33 | ~35d | −2.5¢ | -1.5¢ | −$0 | -1.5% |
| Democratic | NC-01 House winner? — In 2026 | 61.0%Kalshi | 37.0%Polymarket | $83 | ~45d | −2.6¢ | -0.6¢ | −$1 | -0.6% |
| Caleb Downs | Defensive Rookie of the Year Winner? — 2026-… | 14.0%Polymarket | 85.0%Kalshi | $104 | ~144d | −1.5¢ | -0.5¢ | −$1 | -0.5% |
| Democratic Party | KS-02 House Election Winner | 11.0%Kalshi | 88.0%Polymarket | $495 | ~44d | −1.1¢ | -0.1¢ | −$1 | -0.1% |
| Spirit Academy | Azuolas vs Spirit Academy | 81.0%Polymarket US | 18.0%Polymarket | $73 | ~1d | −1.8¢ | -0.8¢ | −$1 | -0.8% |
| Azuolas | Azuolas vs Spirit Academy | 18.0%Polymarket | 81.0%Polymarket US | $73 | ~1d | −1.8¢ | -0.8¢ | −$1 | -0.8% |
| 9 | How many House seats will the Democrats win … | 33.0%Kalshi | 66.0%Polymarket | $43 | ~43d | −2.4¢ | -1.4¢ | −$1 | -1.5% |
| Manchester City FC | Bayern vs Manchester City | 29.0%Polymarket | 70.0%Kalshi | $42 | ~2d | −2.5¢ | -1.5¢ | −$1 | -1.5% |
| Minnesota | Minnesota vs Indiana | 53.0%Kalshi | 46.0%Polymarket | $35 | ~2d | −3.0¢ | -2.0¢ | −$1 | -2.0% |
| Will Anderson Jr. | Defensive Player of the Year Winner? — 2026-… | 17.0%Kalshi | 82.0%Polymarket | $96 | ~144d | −1.7¢ | -0.7¢ | −$1 | -0.7% |
Jahmyr Gibbs
Offensive Player of the Year Winner? — 2026-27 seasonBuy at16.0%PolymarketBuy opposite83.0%Kalshi
Profit−$0Return-0.7%
Capital$20Hold~161dFees−1.7¢Net edge-0.7¢
Flávio Bolsonaro
Brazil Presidential ElectionBuy at58.9%PolymarketBuy opposite40.0%Kalshi
Profit−$0Return-1.6%
Capital$8Hold~13dFees−2.6¢Net edge-1.5¢
Eduardo Paes
Rio de Janeiro Governor Election WinnerBuy at78.5%PolymarketBuy opposite21.0%Kalshi
Profit−$0Return-1.3%
Capital$10Hold~14dFees−1.8¢Net edge-1.3¢
Republican
PA-17 House winner? — In 2026Buy at5.7%KalshiBuy opposite94.0%Polymarket
Profit−$0Return-0.3%
Capital$45Hold~44dFees−0.6¢Net edge-0.3¢
8
How many House seats will Democrats win in Virginia? — On Nov 3, 2026Buy at30.0%KalshiBuy opposite68.0%Polymarket
Profit−$0Return-0.3%
Capital$39Hold~43dFees−2.3¢Net edge-0.3¢
Tom Cruise
Oscar Winner: Best Actor — In 2027Buy at14.0%KalshiBuy opposite85.0%Polymarket
Profit−$0Return-0.5%
Capital$30Hold~175dFees−1.5¢Net edge-0.5¢
Los Angeles Dodgers
MLB: 2026 National League ChampionBuy at40.0%PolymarketBuy opposite59.0%Kalshi
Profit−$0Return-1.4%
Capital$10Hold~41dFees−2.4¢Net edge-1.4¢
Orlando Sanchez
2026 Harris County Judge Election WinnerBuy at9.4%PolymarketBuy opposite90.0%Kalshi
Profit−$0Return-0.4%
Capital$39Hold~44dFees−1.0¢Net edge-0.4¢
19
How many House seats will Democrats win in New York? — On Nov 3, 2026Buy at26.0%PolymarketBuy opposite72.0%Kalshi
Profit−$0Return-0.2%
Capital$88Hold~43dFees−2.2¢Net edge-0.2¢
San Diego Padres
MLB: 2026 National League ChampionBuy at8.0%KalshiBuy opposite91.8%Polymarket
Profit−$0Return-0.5%
Capital$30Hold~41dFees−0.7¢Net edge-0.5¢
Democratic Party
FL-25 House Election WinnerBuy at68.0%PolymarketBuy opposite31.0%Kalshi
Profit−$0Return-1.4%
Capital$12Hold~43dFees−2.4¢Net edge-1.4¢
Republican
Wisconsin Governor Election WinnerBuy at16.0%PolymarketBuy opposite83.0%Kalshi
Profit−$0Return-0.5%
Capital$34Hold~43dFees−1.5¢Net edge-0.5¢
Republican
Oregon Governor winner? — In 2026Buy at14.0%PolymarketBuy opposite85.0%Kalshi
Profit−$0Return-0.4%
Capital$57Hold~43dFees−1.4¢Net edge-0.4¢
Karen Harper
Saanich, BC Mayoral Election WinnerBuy at35.0%KalshiBuy opposite64.0%Polymarket
Profit−$0Return-1.5%
Capital$15Hold~26dFees−2.5¢Net edge-1.5¢
James Cook III
Pro Football: 2026-27 Rushing Touchdowns LeaderBuy at6.9%PolymarketBuy opposite93.0%Kalshi
Profit−$0Return-0.7%
Capital$34Hold~114dFees−0.8¢Net edge-0.7¢
Trinidad Chambliss
Pro Football #1 Overall Pick in 2027 — 1st Pick 2027Buy at13.2%PolymarketBuy opposite86.0%Kalshi
Profit−$0Return-0.4%
Capital$60Hold~214dFees−1.2¢Net edge-0.4¢
Democratic
TX-35 House winner? — In 2026Buy at63.0%KalshiBuy opposite36.0%Polymarket
Profit−$0Return-1.6%
Capital$15Hold~44dFees−2.6¢Net edge-1.6¢
The Odyssey
Oscars 2027: Best Cinematography WinnerBuy at57.0%PolymarketBuy opposite41.0%Kalshi
Profit−$0Return-0.9%
Capital$25Hold~175dFees−2.9¢Net edge-0.9¢
Republican
Georgia Governor winner? — In 2026Buy at40.0%PolymarketBuy opposite58.0%Kalshi
Profit−$0Return-0.7%
Capital$36Hold~43dFees−2.7¢Net edge-0.7¢
Dallas
MLS Cup Winner 2026Buy at4.0%KalshiBuy opposite95.7%Polymarket
Profit−$0Return-0.1%
Capital$266Hold~89dFees−0.4¢Net edge-0.1¢
Democratic Party
CO-07 House Election WinnerBuy at94.0%PolymarketBuy opposite5.9%Kalshi
Profit−$0Return-0.5%
Capital$50Hold~44dFees−0.6¢Net edge-0.5¢
Georgia
College Football Playoff Qualifiers — 2026-27Buy at77.0%GeminiBuy opposite22.0%Kalshi
Profit−$0Return-1.5%
Capital$18Hold~100dFees−2.4¢Net edge-1.4¢
Jonathan Kreiss-Tomkins
Alaska Governor Election Winner Buy at82.0%KalshiBuy opposite17.1%Polymarket
Profit−$0Return-0.7%
Capital$40Hold~43dFees−1.6¢Net edge-0.7¢
Republican
MD-06 House Election WinnerBuy at6.0%PolymarketBuy opposite93.4%Kalshi
Profit−$0Return-0.1%
Capital$498Hold~44dFees−0.7¢Net edge-0.1¢
YesDecember 31, 2026
New "Stranger Things" episode released by...? Buy at2.7%PolymarketBuy opposite97.0%Kalshi
Profit−$0Return-0.0%
Capital$942Hold~102dFees−0.3¢Net edge-0.0¢
NoDecember 31, 2026
New "Stranger Things" episode released by...? Buy at97.0%KalshiBuy opposite2.7%Polymarket
Profit−$0Return-0.0%
Capital$942Hold~102dFees−0.3¢Net edge-0.0¢
Before 2027
Will the US reopen its embassy in Iran? — Before 2027Buy at3.7%KalshiBuy opposite96.0%Polymarket
Profit−$0Return-0.1%
Capital$334Hold~102dFees−0.4¢Net edge-0.1¢
Democratic
MN-02 House winner? — In 2026Buy at92.3%KalshiBuy opposite7.0%Polymarket
Profit−$0Return-0.1%
Capital$596Hold~45dFees−0.8¢Net edge-0.1¢
Republican
IA-01 House winner? — In 2026Buy at22.0%PolymarketBuy opposite77.0%Kalshi
Profit−$0Return-0.9%
Capital$39Hold~44dFees−1.9¢Net edge-0.9¢
San Diego State Aztecs
College Football Pac-12 Championship Winner — 2026Buy at11.0%KalshiBuy opposite88.0%Polymarket
Profit−$0Return-0.2%
Capital$178Hold~105dFees−1.2¢Net edge-0.2¢
Arizona St.
College Football Big 12 Championship Winner — 2026Buy at5.0%KalshiBuy opposite94.9%Polymarket
Profit−$0Return-0.5%
Capital$85Hold~104dFees−0.6¢Net edge-0.5¢
Cleveland Guardians
MLB: 2026 American League ChampionBuy at14.9%PolymarketBuy opposite84.0%Gemini
Profit−$0Return-0.2%
Capital$181Hold~41dFees−1.3¢Net edge-0.2¢
Democratic
New Mexico Governor winner? — In 2026Buy at93.9%KalshiBuy opposite6.0%Polymarket
Profit−$0Return-0.5%
Capital$77Hold~43dFees−0.6¢Net edge-0.5¢
Republican
OH-15 House winner?Buy at76.0%PolymarketBuy opposite23.0%Kalshi
Profit−$0Return-1.0%
Capital$43Hold~43dFees−2.0¢Net edge-1.0¢
47
How many House seats will Democrats win in California? — On Nov 3, 2026Buy at20.0%KalshiBuy opposite79.0%Polymarket
Profit−$0Return-0.8%
Capital$55Hold~43dFees−1.8¢Net edge-0.8¢
T.J. Watt
Defensive Player of the Year Winner? — 2026-27 seasonBuy at18.3%PolymarketBuy opposite81.0%Kalshi
Profit−$0Return-1.1%
Capital$40Hold~144dFees−1.8¢Net edge-1.1¢
Detroit Tigers
Washington vs DetroitBuy at55.0%PolymarketBuy opposite44.0%Kalshi
Profit−$0Return-2.0%
Capital$23Hold~5dFees−3.0¢Net edge-2.0¢
Alexi Giannoulias
Chicago mayoral election winner? (2027) — In 2027Buy at62.0%KalshiBuy opposite36.0%Polymarket
Profit−$0Return-0.6%
Capital$79Hold~156dFees−2.6¢Net edge-0.6¢
Jack Lowden
Next James Bond film: Actor cast as James Bond — Before 2030Buy at42.8%PolymarketBuy opposite57.0%Kalshi
Profit−$0Return-2.7%
Capital$17Hold~101dFees−2.9¢Net edge-2.7¢
Cincinnati Reds
Cincinnati Reds vs Atlanta BravesBuy at35.0%PolymarketBuy opposite64.0%Kalshi
Profit−$0Return-1.8%
Capital$28Hold~5dFees−2.8¢Net edge-1.8¢
Andrea Kaiser
Niagara-on-the-Lake, ON Mayoral Election WinnerBuy at35.0%KalshiBuy opposite64.0%Polymarket
Profit−$0Return-1.5%
Capital$33Hold~35dFees−2.5¢Net edge-1.5¢
Democratic
NC-01 House winner? — In 2026Buy at61.0%KalshiBuy opposite37.0%Polymarket
Profit−$1Return-0.6%
Capital$83Hold~45dFees−2.6¢Net edge-0.6¢
Caleb Downs
Defensive Rookie of the Year Winner? — 2026-27 seasonBuy at14.0%PolymarketBuy opposite85.0%Kalshi
Profit−$1Return-0.5%
Capital$104Hold~144dFees−1.5¢Net edge-0.5¢
Democratic Party
KS-02 House Election WinnerBuy at11.0%KalshiBuy opposite88.0%Polymarket
Profit−$1Return-0.1%
Capital$495Hold~44dFees−1.1¢Net edge-0.1¢
Spirit Academy
Azuolas vs Spirit AcademyBuy at81.0%Polymarket USBuy opposite18.0%Polymarket
Profit−$1Return-0.8%
Capital$73Hold~1dFees−1.8¢Net edge-0.8¢
Azuolas
Azuolas vs Spirit AcademyBuy at18.0%PolymarketBuy opposite81.0%Polymarket US
Profit−$1Return-0.8%
Capital$73Hold~1dFees−1.8¢Net edge-0.8¢
9
How many House seats will the Democrats win in Pennsylvania?Buy at33.0%KalshiBuy opposite66.0%Polymarket
Profit−$1Return-1.5%
Capital$43Hold~43dFees−2.4¢Net edge-1.4¢
Manchester City FC
Bayern vs Manchester CityBuy at29.0%PolymarketBuy opposite70.0%Kalshi
Profit−$1Return-1.5%
Capital$42Hold~2dFees−2.5¢Net edge-1.5¢
Minnesota
Minnesota vs IndianaBuy at53.0%KalshiBuy opposite46.0%Polymarket
Profit−$1Return-2.0%
Capital$35Hold~2dFees−3.0¢Net edge-2.0¢
Will Anderson Jr.
Defensive Player of the Year Winner? — 2026-27 seasonBuy at17.0%KalshiBuy opposite82.0%Polymarket
Profit−$1Return-0.7%
Capital$96Hold~144dFees−1.7¢Net edge-0.7¢
Showing 401–450 of 505