Live prediction market odds for Mackenzie McDonald vs. Lloyd Harris. Compare prices across Kalshi and Polymarket.
Join our Discord for breaking news alerts, driven by real-time movements in prediction markets.
Kalshi / Polymarket
2026-04-20
Mackenzie McDonald vs. Lloyd Harris — ATP Tennis match scheduled for 2026-04-20. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Lloyd Harris leads the “Mackenzie McDonald vs. Lloyd Harris” event at 50.8% implied probability, followed by Mackenzie McDonald at 50.0%. A 21.5% cross-platform spread signals an active arbitrage window.
Mackenzie McDonald vs. Lloyd Harris is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). Lloyd Harris leads at 51% implied probability, making it the market favorite. Other contenders include Mackenzie McDonald at 50%.
Lloyd Harris currently leads at 51% implied probability. Behind Lloyd Harris, Mackenzie McDonald at 50% are the next closest contenders. The 21.5% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here are the latest odds across Kalshi, Polymarket: Lloyd Harris: 62¢ on Kalshi, 40¢ on Polymarket. Mackenzie McDonald: 40¢ on Kalshi, 60¢ on Polymarket. The 21.5% 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 Lloyd Harris 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.
Build a custom bot or arb alert system for the “Mackenzie McDonald vs. Lloyd Harris” event. All for free.
As seen on Financial Times, Guardian and Polymark.et
Used by builders and traders in our 2K+ Discord community
Lloyd Harris
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Lloyd Harris wins the Harris vs McDonald 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 Harris vs McDonald 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 Lloyd Harris and Mackenzie McDonald in the Madrid Open, Qualification, originally scheduled for April 20, 2026 at 7:00AM ET. This market will resolve to "Harris" if Lloyd Harris wins by 2 or more sets than Mackenzie McDonald, based on the final completed score. Otherwise, it will resolve to "McDonald." 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
