BETCRYPTO

GAPS

507 gaps
338/507 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.
J.D. Vance
Republican Presidential Nominee 2028
Buy at46.0%KalshiBuy opposite48.8%Polymarket
Profit$182Return2.6%
Capital$7.0KHold~778dFees−2.7¢Net edge2.5¢
Benjamin Netanyahu
Who will be the next Prime Minister of Israel after the next election?
Buy at27.0%KalshiBuy opposite71.0%Polymarket
Profit$94Return0.6%
Capital$14.9KHold~101dFees−1.4¢Net edge0.6¢
Ron DeSantis
Republican Presidential Nominee 2028
Buy at2.9%PolymarketBuy opposite95.7%Kalshi
Profit$53Return1.0%
Capital$5.2KHold~778dFees−0.4¢Net edge1.0¢
Seattle Seahawks
2027 Pro Football Champion — 2026-27
Buy at8.0%KalshiBuy opposite89.0%Polymarket
Profit$39Return2.3%
Capital$1.7KHold~126dFees−0.8¢Net edge2.2¢
Republican
New Hampshire Governor winner? — In 2026
Buy at88.0%Polymarket USBuy opposite9.0%Polymarket
Profit$36Return2.0%
Capital$1.8KHold~43dFees−1.1¢Net edge1.9¢
Democratic
Maine Senate Election Winner
Buy at71.0%PolymarketBuy opposite20.0%Kalshi
Profit$35Return7.8%
Capital$455Hold~43dFees−1.9¢Net edge7.1¢
Kamala Harris
Democratic Presidential Nominee 2028
Buy at8.1%KalshiBuy opposite88.0%Polymarket US
Profit$21Return2.8%
Capital$746Hold~690dFees−1.3¢Net edge2.6¢
Detroit Lions
2027 Pro Football Champion — 2026-27
Buy at4.0%KalshiBuy opposite93.0%Polymarket
Profit$19Return2.6%
Capital$739Hold~126dFees−0.5¢Net edge2.5¢
San Francisco
2027 Pro Football Champion — 2026-27
Buy at9.0%KalshiBuy opposite85.0%Polymarket
Profit$19Return5.4%
Capital$359Hold~126dFees−1.0¢Net edge5.0¢
Democratic
Which party wins 2028 US Presidential Election?
Buy at59.0%KalshiBuy opposite34.0%Polymarket
Profit$18Return4.7%
Capital$390Hold~778dFees−2.6¢Net edge4.4¢
YesAbove 4.5%
How high will inflation get in 2026?
Buy at19.0%PolymarketBuy opposite74.0%Kalshi
Profit$18Return5.3%
Capital$342Hold~102dFees−2.1¢Net edge4.9¢
Green Bay
2027 Pro Football Champion — 2026-27
Buy at3.0%KalshiBuy opposite95.0%Polymarket
Profit$18Return1.7%
Capital$1.1KHold~126dFees−0.3¢Net edge1.7¢
OpenAI
Which AI company will have the best coding model at the end of 2026? — On Dec 31, 2026
Buy at9.0%Polymarket USBuy opposite81.0%Kalshi
Profit$18Return9.3%
Capital$189Hold~102dFees−1.6¢Net edge8.4¢
Pete Buttigieg
Presidential Election Winner 2028
Buy at2.7%PolymarketBuy opposite96.0%Gemini
Profit$17Return0.9%
Capital$1.8KHold~778dFees−0.4¢Net edge0.9¢
Dalton Kincaid
Fantasy Football: 2026-27 Season Top TE — 2026-2027 regular season
Buy at4.0%KalshiBuy opposite89.0%Gemini
Profit$17Return6.5%
Capital$256Hold~112dFees−1.0¢Net edge6.0¢
OpenAI
Which companies will have a top-ranked AI model this year? — In 2026
Buy at32.0%KalshiBuy opposite60.0%Polymarket US
Profit$16Return5.2%
Capital$315Hold~102dFees−3.2¢Net edge4.8¢
Republican
Which party wins 2028 US Presidential Election?
Buy at36.0%Polymarket USBuy opposite59.0%Kalshi
Profit$16Return1.8%
Capital$916Hold~779dFees−3.3¢Net edge1.7¢
Republican
New Hampshire Senate Election Winner
Buy at15.0%Polymarket USBuy opposite82.0%Polymarket
Profit$15Return1.6%
Capital$945Hold~43dFees−1.5¢Net edge1.5¢
Republican
OH-09 House Election Winner
Buy at26.0%PolymarketBuy opposite69.0%Polymarket US
Profit$15Return2.9%
Capital$513Hold~44dFees−2.3¢Net edge2.7¢
Marco Rubio
Presidential Election Winner 2028
Buy at8.9%PolymarketBuy opposite86.0%Gemini
Profit$14Return4.1%
Capital$332Hold~778dFees−1.2¢Net edge3.9¢
Angie Nixon (D)
Florida Senate Election: Miami-Dade County Winner
Buy at15.0%Polymarket USBuy opposite70.0%Polymarket
Profit$14Return15.6%
Capital$87Hold~44dFees−1.7¢Net edge13.3¢
Democratic
Minnesota Senate winner? — In 2026
Buy at90.4%KalshiBuy opposite8.0%Polymarket
Profit$12Return0.7%
Capital$1.7KHold~43dFees−0.9¢Net edge0.7¢
Tucker Kraft
Fantasy Football: 2026-27 Season Top TE — 2026-2027 regular season
Buy at3.0%KalshiBuy opposite95.0%Gemini
Profit$12Return1.5%
Capital$817Hold~112dFees−0.5¢Net edge1.5¢
Yes
Will there be a recession in 2027?
Buy at26.0%KalshiBuy opposite66.0%Polymarket
Profit$12Return6.0%
Capital$202Hold~467dFees−2.5¢Net edge5.5¢
No
Will there be a recession in 2027?
Buy at66.0%PolymarketBuy opposite26.0%Kalshi
Profit$12Return6.0%
Capital$202Hold~467dFees−2.5¢Net edge5.5¢
Puka Nacua
Offensive Player of the Year Winner? — 2026-27 season
Buy at4.0%Polymarket USBuy opposite93.0%Polymarket
Profit$12Return2.5%
Capital$479Hold~144dFees−0.6¢Net edge2.4¢
Vladimir Putin
Who will Trump meet with in 2026?
Buy at62.0%Polymarket USBuy opposite32.0%Polymarket
Profit$11Return3.7%
Capital$304Hold~102dFees−2.5¢Net edge3.5¢
No
Pro Football: DeVonta Smith 2026-27 Regular Season Receiving Touchdowns
Buy at77.0%Polymarket USBuy opposite11.0%Polymarket
Profit$8Return11.7%
Capital$70Hold~112dFees−1.7¢Net edge10.3¢
Yes
Pro Football: DeVonta Smith 2026-27 Regular Season Receiving Touchdowns
Buy at11.0%PolymarketBuy opposite77.0%Polymarket US
Profit$8Return11.7%
Capital$70Hold~112dFees−1.7¢Net edge10.3¢
Katie Hobbs (D)
Arizona Governor Election: Maricopa County Winner
Buy at84.0%PolymarketBuy opposite10.0%Polymarket US
Profit$8Return5.1%
Capital$159Hold~44dFees−1.2¢Net edge4.8¢
6
How many House seats will Democrats win in North Carolina? — On Nov 3, 2026
Buy at12.0%KalshiBuy opposite77.0%Polymarket
Profit$7Return10.7%
Capital$65Hold~43dFees−1.4¢Net edge9.6¢
Pete Hegseth
Who will leave Trump's Cabinet next? — During Trump's term
Buy at10.0%PolymarketBuy opposite79.0%Kalshi
Profit$7Return10.7%
Capital$61Hold~102dFees−1.5¢Net edge9.5¢
Republican party
MN-02 House winner? — In 2026
Buy at5.9%PolymarketBuy opposite92.3%Kalshi
Profit$6Return1.1%
Capital$589Hold~45dFees−0.7¢Net edge1.1¢
Marco Rubio
Republican Presidential Nominee 2028
Buy at15.8%PolymarketBuy opposite80.0%Gemini
Profit$6Return2.7%
Capital$241Hold~778dFees−1.7¢Net edge2.5¢
SK Slovan Bratislava
UEFA Champions League: League Phase Last Place
Buy at16.0%Polymarket USBuy opposite75.0%Polymarket
Profit$6Return7.8%
Capital$77Hold~129dFees−1.9¢Net edge7.1¢
Philadelphia
2027 Pro Football Champion — 2026-27
Buy at6.0%KalshiBuy opposite88.4%Polymarket
Profit$6Return5.2%
Capital$113Hold~126dFees−0.7¢Net edge4.9¢
Republican Party
WA-05 House Election Winner
Buy at81.0%PolymarketBuy opposite17.0%Kalshi
Profit$6Return0.4%
Capital$1.4KHold~43dFees−1.6¢Net edge0.4¢
Renate Reinsve
Oscar winner: Best Actress — In 2027
Buy at4.0%KalshiBuy opposite93.0%Polymarket
Profit$5Return2.5%
Capital$217Hold~175dFees−0.6¢Net edge2.4¢
Mark Kelly
Democratic Presidential Nominee 2028
Buy at3.1%PolymarketBuy opposite96.1%Kalshi
Profit$5Return0.4%
Capital$1.3KHold~778dFees−0.4¢Net edge0.4¢
Darian Mensah
Pro Football #1 Overall Pick in 2027 — 1st Pick 2027
Buy at12.0%KalshiBuy opposite84.4%Polymarket
Profit$5Return2.6%
Capital$202Hold~214dFees−1.1¢Net edge2.5¢
No
Will Netanyahu visit New York City by...?
Buy at5.4%PolymarketBuy opposite90.0%Kalshi
Profit$5Return4.2%
Capital$123Hold~11dFees−0.6¢Net edge4.0¢
Yes
Will Netanyahu visit New York City by...?
Buy at90.0%KalshiBuy opposite5.4%Polymarket
Profit$5Return4.2%
Capital$123Hold~11dFees−0.6¢Net edge4.0¢
76 to 77°F
Highest temperature in Denver on September 21?
Buy at20.0%GeminiBuy opposite65.0%Polymarket
Profit$5Return15.0%
Capital$34Hold~1dFees−2.3¢Net edge12.7¢
No24.5+ passing TDs
Pro Football: Brock Purdy 2026-27 Regular Season Passing Touchdowns
Buy at30.0%PolymarketBuy opposite61.0%Polymarket US
Profit$5Return6.9%
Capital$73Hold~112dFees−2.7¢Net edge6.3¢
Yes24.5+ passing TDs
Pro Football: Brock Purdy 2026-27 Regular Season Passing Touchdowns
Buy at61.0%Polymarket USBuy opposite30.0%Polymarket
Profit$5Return6.9%
Capital$73Hold~112dFees−2.7¢Net edge6.3¢
Scott Jennings
Who will be Trump's next Press Secretary? — Before Jan 21, 2029
Buy at17.0%KalshiBuy opposite77.0%Gemini
Profit$5Return4.0%
Capital$120Hold~852dFees−2.2¢Net edge3.8¢
120 to 125MILLION
2026 Midterms: House Turnout
Buy at17.0%PolymarketBuy opposite78.0%Polymarket US
Profit$5Return3.4%
Capital$141Hold~43dFees−1.8¢Net edge3.2¢
Democratic
New Hampshire Senate Election Winner
Buy at82.0%PolymarketBuy opposite15.0%Polymarket US
Profit$5Return1.6%
Capital$292Hold~43dFees−1.5¢Net edge1.5¢
Elissa Slotkin
2028 Democratic VP nominee — In 2028
Buy at5.6%PolymarketBuy opposite89.0%Gemini
Profit$5Return4.8%
Capital$95Hold~689dFees−0.9¢Net edge4.5¢
UPGRADE
UPGRADE vs ILLYRIANS
Buy at65.0%PolymarketBuy opposite28.0%Polymarket US
Profit$4Return4.8%
Capital$91Hold~1dFees−2.5¢Net edge4.5¢

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