Live prediction market odds for Rei Sakamoto vs. Zachary Svajda. Compare prices across Kalshi and Polymarket.
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Kalshi / Polymarket
2026-04-20
Rei Sakamoto vs. Zachary Svajda — ATP Tennis match scheduled for 2026-04-20. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Zachary Svajda leads the “Rei Sakamoto vs. Zachary Svajda” event at 50.8% implied probability, followed by Rei Sakamoto at 49.5%. A 22.0% cross-platform spread signals an active arbitrage window.
Rei Sakamoto vs. Zachary Svajda is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). Zachary Svajda leads at 51% implied probability, making it the market favorite. Other contenders include Rei Sakamoto at 50%.
Zachary Svajda currently leads at 51% implied probability. Behind Zachary Svajda, Rei Sakamoto at 50% are the next closest contenders. The 22.0% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here are the latest odds across Kalshi, Polymarket: Zachary Svajda: 40¢ on Kalshi, 62¢ on Polymarket. Rei Sakamoto: 61¢ on Kalshi, 39¢ on Polymarket. The 22.0% spread across platforms highlights where markets disagree — a gap traders can exploit by buying low on one platform and selling high on another.
A price of 51¢ means the market estimates a 51% probability that Zachary Svajda will be the outcome. Buying one share at 51¢ pays out $1.00 if correct — a 96% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Zachary Svajda
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Zachary Svajda wins the Svajda vs Sakamoto professional tennis match in the 2026 ATP Madrid Qualification Round 1 after a ball has been played, then the market resolves to Yes.
The following market refers to the Svajda vs Sakamoto professional tennis match in the 2026 ATP Madrid Qualification Round 1 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).
PolymarketThis market refers to the tennis match between Rei Sakamoto and Zachary Svajda in the Madrid Open, Qualification, originally scheduled for April 20, 2026 at 4:00AM ET. This market will resolve to "Sakamoto" if Rei Sakamoto wins by 2 or more sets than Zachary Svajda, based on the final completed score. Otherwise, it will resolve to "Svajda." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official ATP results.
50.8% avg
