SimpleFunctions
20 source contracts·Kalshi 20·refreshed just now·Closes Jun 12, 2026 · 15d·24pp · 15h

Will Sara Errani / Lilli Tagger win the Perez / Schuurs vs Errani / Tagger

Liquidity-weighted aggregate sits at 32% across 20 Kalshi contracts.

Implied probability

32%
0%50%100%

Kalshi

32%

20 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

+24pp

15h ago

24h volume

$2K

20 contracts

Closes

Jun 12, 2026

15 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 9% (3 days, 3 points)Aggregate: 9% on 2026-05-28
Aggregate of 20 contracts · 3d

Bracket families

20 clusters across 20 contracts.

These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.

Cluster 1

Will Katerina Siniakova / Taylor Townsend win the Siniakova / Townsend vs Arango / Jovic: Round Of 32 match

1 contract$628

Cluster 2

Will Emiliana Arango / Iva Jovic win the Siniakova / Townsend vs Arango / Jovic: Round Of 32 match

1 contract$563

Cluster 3

Will Tatjana Maria / Zeynep Sonmez win the Kalinina / Yastremska vs Maria / Sonmez: Round Of 32 match

1 contract$177

Cluster 4

Will Anhelina Kalinina / Dayana Yastremska win the Kalinina / Yastremska vs Maria / Sonmez: Round Of 32 match

1 contract$147

Cluster 5

Will Marie Bouzkova / Sara Sorribes Tormo win the Bouzkova / Sorribes Tormo vs Haddad Maia / Samsonova: Round Of 32 match

1 contract$0

Cluster 6

Will Beatriz Haddad Maia / Liudmila Samsonova win the Bouzkova / Sorribes Tormo vs Haddad Maia / Samsonova: Round Of 32 match

1 contract$0

Cluster 7

Will Eudice Chong / Veronika Erjavec win the Chong / Erjavec vs Hunter / McNally: Round Of 32 match

1 contract$0

Cluster 8

Will Storm Hunter / Caty McNally win the Chong / Erjavec vs Hunter / McNally: Round Of 32 match

1 contract$0

Cluster 9

Will Gabriela Dabrowski / Luisa Stefani win the Dabrowski / Stefani vs Pridankina / Tang: Round Of 32 match

1 contract$0

Cluster 10

Will Elena Pridankina / Qianhui Tang win the Dabrowski / Stefani vs Pridankina / Tang: Round Of 32 match

1 contract$0

Cluster 11

Will Anastasia Detiuc / Irina Khromacheva win the Detiuc / Khromacheva vs Eikeri / Gleason: Round Of 32 match

1 contract$0

Cluster 12

Will Ulrikke Eikeri / Quinn Gleason win the Detiuc / Khromacheva vs Eikeri / Gleason: Round Of 32 match

1 contract$0

Cluster 13

Will Hanyu Guo / Kristina Mladenovic win the Guo / Mladenovic vs Hsieh S-W / Wang XIN: Round Of 32 match

1 contract$0

Cluster 14

Will Su-Wei Hsieh / Xinyu Wang win the Guo / Mladenovic vs Hsieh S-W / Wang XIN: Round Of 32 match

1 contract$0

Cluster 15

Will Anna Danilina / Aleksandra Krunic win the Joint / Vandewinkel vs Danilina / Krunic: Round Of 32 match

1 contract$0

Cluster 16

Will Maya Joint / Hanne Vandewinkel win the Joint / Vandewinkel vs Danilina / Krunic: Round Of 32 match

1 contract$0

Cluster 17

Will Shuko Aoyama / En-Shuo Liang win the Ostapenko / Routliffe vs Aoyama / Liang: Round Of 32 match

1 contract$0

Cluster 18

Will Jelena Ostapenko / Erin Routliffe win the Ostapenko / Routliffe vs Aoyama / Liang: Round Of 32 match

1 contract$0

Cluster 19

Will Sara Errani / Lilli Tagger win the Perez / Schuurs vs Errani / Tagger: Round Of 32 match

1 contract$0

Cluster 20

Will Ellen Perez / Demi Schuurs win the Perez / Schuurs vs Errani / Tagger: Round Of 32 match

1 contract$0

Analysis

This market reflects an 8% probability that Sara Errani and Lilli Tagger will defeat Perez and Schuurs in their upcoming doubles match. The low odds suggest market participants view Errani/Tagger as significant underdogs, likely reflecting differences in player rankings, recent form, or head-to-head records. The probability could shift higher if recent tournament results or rankings indicate Errani/Tagger are performing better than expected, or lower if Perez/Schuurs demonstrate strong recent form leading into the match. The match outcome will resolve when the contest is completed, with the winner advancing and the loser eliminated from the tournament.

  • Current ATP/WTA doubles rankings and recent ranking trends for all four players
  • Head-to-head match history between the Perez/Schuurs pairing and the Errani/Tagger pairing if available
  • Tournament performance and win-loss records in doubles competitions during the current season for both teams
  • Recent surface performance, as doubles dynamics and player comfort vary significantly by court type
  • Injury status or recent absences of any of the four players that might affect match preparation or fitness

What moved the line

  • May 28Round Of 32 match?: Emiliana Arango / Iva Jovic12pp517¢ · Kalshi
  • May 28Round Of 32 match?: Katerina Siniakova / Taylor Townsend8pp715¢ · Kalshi
  • May 27Round Of 32 match?: Hanyu Guo / Kristina Mladenovic7pp512¢ · Kalshi
  • May 27Round Of 32 match?: Su-Wei Hsieh / Xinyu Wang4pp59¢ · Kalshi
  • May 28Round Of 32 match?: Gabriela Dabrowski / Luisa Stefani3pp58¢ · Kalshi

Recently closed in general

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

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