# WTA Tennis Matches

> Closed. Final outcome: Semifinal match?: Elina Svitolina. Last odds frozen 3 d ago.

URL: https://simplefunctions.dev/odds/wta-tennis
Updated: 2026-06-04T19:20:13.057Z
Category: sports · Topic: tennis
Status: historical
Closes: 2026-06-15

## Headline

- Probability: 50% (liquidity-weighted across 4 contracts)
- Venue: Kalshi (4 contracts)
- 24h volume: $153K
- Resolved: Semifinal match?: Elina Svitolina

## Bound contracts (4)

| Outcome | Price | 24h | Volume | Venue | Slug |
|---|---|---|---|---|---|
| Semifinal match?: Marta Kostyuk | 55¢ | +1pp | $86K | kalshi | /markets/will-marta-kostyuk-win-the-kostyuk-vs-andreeva-sem-kalshi-kxwtamatch-26jun04kosand-kos |
| Semifinal match?: Mirra Andreeva | 45¢ | +1pp | $23K | kalshi | /markets/will-mirra-andreeva-win-the-kostyuk-vs-andreeva-se-kalshi-kxwtamatch-26jun04kosand-and |
| Semifinal match?: Maja Chwalinska | 37¢ | — | $23K | kalshi | /markets/will-maja-chwalinska-win-the-shnaider-vs-chwalinsk-kalshi-kxwtamatch-26jun04shnchw-chw |
| Semifinal match?: Diana Shnaider | 63¢ | — | $20K | kalshi | /markets/will-diana-shnaider-win-the-shnaider-vs-chwalinska-kalshi-kxwtamatch-26jun04shnchw-shn |

## 30-day trajectory

| Day | Aggregate |
|---|---|
| 2026-06-02 | 49 |
| 2026-06-03 | 49 |

_2 days of price history captured. Each row is the daily mean of intraday 5-min captures._

## Methodology

Probability is **liquidity-weighted** across all bound Kalshi/Polymarket contracts: Σ(price × volume) ÷ Σ(volume). 30-day trajectory uses the daily mean of intraday 5-min captures. 24h delta = today's mean − yesterday's mean. Movement events are ≥3pp daily moves in the last 7 days.

## How to use this data

- HTML: https://simplefunctions.dev/odds/wta-tennis
- JSON: https://simplefunctions.dev/api/public/odds?slug=wta-tennis
- Topic hub: https://simplefunctions.dev/predictions/tennis

## License

CC-BY-4.0. Attribute "SimpleFunctions" with a link to https://simplefunctions.dev. See https://simplefunctions.dev/legal for terms.