
Madrid Open: Hailey Baptiste vs Mirra Andreeva
Prediction market · Polymarket
Overview
This market refers to the tennis match between Hailey Baptiste and Mirra Andreeva in the Madrid Open, originally scheduled for April 30, 2026 at 7:00AM ET. This market will resolve to 'Hailey Baptiste' if Hailey Baptiste advances against Mirra Andreeva. This market will resolve to 'Mirra Andreeva' if Mirra Andreeva advances against Hailey Baptiste. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Ticker
wta-baptist-andreev-2026-04-30
Volume
10.0K
24h volume
10.0K
1w volume
10.0K
Open interest
9.9K
Liquidity
22.3K
Liquidity CLOB
22.3K
Start
Apr 28, 2026
End
May 7, 2026
Status
Active
Access
Restricted
Created
Apr 30, 2026
Resolution source
https://www.wtatennis.com/scores
Event ID
428893
Slug
wta-baptist-andreev-2026-04-30
Markets
1
Raw event data
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"title": "Madrid Open: Hailey Baptiste vs Mirra Andreeva",
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"eventMetadata": {
"context_description": "Mirra Andreeva enters as the clear trader consensus favorite at 73.5% implied probability against Hailey Baptiste in the Madrid Open semifinals, driven by her No. 8 WTA ranking, dominant 2026 clay record leading the tour in wins, and consistent deep runs on the surface including straight-set quarterfinal victory over Leylah Fernandez. Baptiste, ranked No. 32, rides massive momentum from saving six match points to stun World No. 1 Aryna Sabalenka in quarters—her first top-5 win and maiden WTA 1000 semifinal—but faces stylistic challenges against Andreeva's baseline power, with their head-to-head tied 1-1 from 2025 grass encounters. No injury concerns for either on high-bouncing clay.",
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"id": 147188,
"name": "Hailey Baptiste",
"league": "wta",
"record": "0-0",
"logo": "https://polymarket-upload.s3.us-east-2.amazonaws.com/country-flags/usa.png",
"abbreviation": "baptist",
"alias": "H. Baptiste",
"createdAt": "2025-10-17T16:00:04.303656Z",
"updatedAt": "2026-04-24T15:34:53.396673Z",
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"abbreviation": "andreev",
"alias": "M. Andreeva",
"createdAt": "2026-01-05T05:00:04.36555Z",
"updatedAt": "2026-04-24T15:40:04.963448Z",
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}- Madrid Open: Hailey Baptiste vs Mirra AndreevaVol 15.5KLiq 21.9KEnd May 7, 2026OpenOrder book