Two-leg coverage scanner

Executable arbitrage candidates

VoxOdds buys opposite sides of the same fingerprint-pinned binary outcome, matches the contract count, walks both live ask books, and includes estimated taker fees. A row appears only when the captured all-in cost is below the common settlement payout.

Reviewed pairs
22
Candidates now
10
Capital ceiling
$100
Quote state
Unfilled
Not guaranteed. The two venues cannot be executed atomically. A candidate is only locked after both exact-size legs fill. Recheck the venue order previews, balances, eligibility and rules before acting.

Prediction markets

Candidate — unfilledrepublican nominee 2028rules reviewed 2026-08-01

J.D. Vance wins and accepts the 2028 Republican presidential nomination

Match 103 contracts for $99.69 all-in. Common settlement payout: $103.00.

kalshi · buy Yes
41.69¢
$42.94 incl. fee
Open Kalshi
polymarket · buy No
55.09¢
$56.75 incl. fee
Open Polymarket
Theoretical profit
$3.31
3.32%
Candidate — unfilleddemocratic nominee 2028rules reviewed 2026-08-01

Mark Kelly wins and accepts the 2028 Democratic presidential nomination

Match 102 contracts for $99.33 all-in. Common settlement payout: $102.00.

polymarket · buy Yes
3.01¢
$3.07 incl. fee
Open Polymarket
kalshi · buy No
94.37¢
$96.26 incl. fee
Open Kalshi
Theoretical profit
$2.67
2.69%
Candidate — unfilledrepublican nominee 2028rules reviewed 2026-08-01

Ron DeSantis wins and accepts the 2028 Republican presidential nomination

Match 14 contracts for $13.75 all-in. Common settlement payout: $14.00.

polymarket · buy Yes
3.22¢
$0.45 incl. fee
Open Polymarket
kalshi · buy No
95.00¢
$13.30 incl. fee
Open Kalshi
Theoretical profit
$0.25
1.81%
Candidate — unfilleddemocratic nominee 2028rules reviewed 2026-08-02

J.B. Pritzker wins and accepts the 2028 Democratic presidential nomination

Match 101 contracts for $99.91 all-in. Common settlement payout: $101.00.

polymarket · buy Yes
1.25¢
$1.26 incl. fee
Open Polymarket
kalshi · buy No
97.67¢
$98.65 incl. fee
Open Kalshi
Theoretical profit
$1.09
1.09%
Candidate — unfilleddemocratic nominee 2028rules reviewed 2026-08-01

Andy Beshear wins and accepts the 2028 Democratic presidential nomination

Match 100 contracts for $99.25 all-in. Common settlement payout: $100.00.

polymarket · buy Yes
2.70¢
$2.70 incl. fee
Open Polymarket
kalshi · buy No
96.55¢
$96.55 incl. fee
Open Kalshi
Theoretical profit
$0.75
0.75%
Candidate — unfilleddemocratic nominee 2028rules reviewed 2026-08-02

Jon Stewart wins and accepts the 2028 Democratic presidential nomination

Match 100 contracts for $99.28 all-in. Common settlement payout: $100.00.

kalshi · buy Yes
1.39¢
$1.39 incl. fee
Open Kalshi
polymarket · buy No
97.89¢
$97.89 incl. fee
Open Polymarket
Theoretical profit
$0.72
0.73%
Candidate — unfilleddemocratic nominee 2028rules reviewed 2026-08-02

Wes Moore wins and accepts the 2028 Democratic presidential nomination

Match 100 contracts for $99.33 all-in. Common settlement payout: $100.00.

polymarket · buy Yes
1.56¢
$1.56 incl. fee
Open Polymarket
kalshi · buy No
97.77¢
$97.77 incl. fee
Open Kalshi
Theoretical profit
$0.67
0.68%
Candidate — unfilleddemocratic nominee 2028rules reviewed 2026-08-01

Gavin Newsom wins and accepts the 2028 Democratic presidential nomination

Match 100 contracts for $99.70 all-in. Common settlement payout: $100.00.

kalshi · buy Yes
17.99¢
$17.99 incl. fee
Open Kalshi
polymarket · buy No
81.71¢
$81.71 incl. fee
Open Polymarket
Theoretical profit
$0.30
0.30%
Candidate — unfilledrepublican nominee 2028rules reviewed 2026-08-01

Tom Cotton wins and accepts the 2028 Republican presidential nomination

Match 100 contracts for $99.94 all-in. Common settlement payout: $100.00.

polymarket · buy Yes
0.21¢
$0.21 incl. fee
Open Polymarket
kalshi · buy No
99.73¢
$99.73 incl. fee
Open Kalshi
Theoretical profit
$0.06
0.06%
Candidate — unfilledrepublican nominee 2028rules reviewed 2026-08-01

Elise Stefanik wins and accepts the 2028 Republican presidential nomination

Match 99 contracts for $98.94 all-in. Common settlement payout: $99.00.

kalshi · buy Yes
0.32¢
$0.32 incl. fee
Open Kalshi
polymarket · buy No
99.62¢
$98.62 incl. fee
Open Polymarket
Theoretical profit
$0.06
0.06%

Closest reviewed pairs

OutcomeAll-in / $1 payoutResult
Tulsi Gabbard wins and accepts the 2028 Republican presidential nomination$1.0006No arbitrage
Kamala Harris wins and accepts the 2028 Democratic presidential nomination$1.0012No arbitrage
John Thune wins and accepts the 2028 Republican presidential nomination$1.0012No arbitrage
John Thune wins and accepts the 2028 Republican presidential nomination$1.0013No arbitrage
Sarah Huckabee Sanders wins and accepts the 2028 Republican presidential nomination$1.0017No arbitrage
Lando Norris is the 2026 Formula 1 Drivers' Champion$1.0017No arbitrage
Josh Shapiro wins and accepts the 2028 Democratic presidential nomination$1.0019No arbitrage
Lewis Hamilton is the 2026 Formula 1 Drivers' Champion$1.0024No arbitrage
Sarah Huckabee Sanders wins and accepts the 2028 Republican presidential nomination$1.0026No arbitrage
Tulsi Gabbard wins and accepts the 2028 Republican presidential nomination$1.0026No arbitrage

Sportsbooks

2-way and 3-way surebets

1 credit / scan · bookmakers

Scanner ready; live sportsbook feed not activated

VoxOdds is not substituting catalog entries or prediction-market prices. Add the provider key and this section will evaluate the configured ten books using real h2h prices.

odds feed disabled (no ODDS_API_KEY configured)

Exact reviewed binary pairs; equal whole-contract opposite sides; live ask depth; estimated taker fees and conservative Kalshi rounding. These are unfilled arbitrage candidates, not guaranteed trades. Cross-venue orders are non-atomic, and prices, depth, eligibility, balances, and venue previews can change before both legs fill. Prediction-market JSON · Sportsbook JSON

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