# Internazionali BNL d'Italia: Katerina Siniakova vs Anna Kalinskaya

> Polymarket binary prediction market. 47% implied probability of YES as of Thu, 07 May 2026 16:18:20 GMT. 24h change +0.0pp, 24h volume $412.2K.

**Canonical URL:** https://orrery.me/markets/wta-siniako-kalinsk-2026-05-07
**Polymarket source:** https://polymarket.com/event/wta-siniako-kalinsk-2026-05-07
**Category:** Sports
**Resolves by:** May 14, 2026
**Last fetched:** 2026-05-07T16:18:20.474Z

## Live snapshot

| Metric | Value |
|---|---|
| YES probability | **47¢** (47%) |
| Δ 1h | -38.5pp |
| Δ 24h | +0.0pp |
| Δ 1w | +0.0pp |
| 24h volume | $412.2K |
| Lifetime volume | $412.2K |
| Liquidity (orderbook depth) | $90.8K |
| Spread | 2.00pp |

## Resolution

**Resolves by:** May 14, 2026

**Source:** https://www.wtatennis.com/scores

### Market description (verbatim from Polymarket)

> This market refers to the tennis match between Katerina Siniakova and Anna Kalinskaya in the Internazionali BNL d'Italia, originally scheduled for May 7, 2026 at 8:00AM ET.
> 
> This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Anna Kalinskaya.
> 
> This market will resolve to 'Anna Kalinskaya' if Anna Kalinskaya advances against Katerina Siniakova.
> 
> 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.

## Top holders

**Top YES holders**

- `0x5268…135d` — 28,422.993 shares
- `0x664a…fc5f` — 22,840.863 shares
- `0x204f…5e14` — 15,104.228 shares
- `0x246b…fb5b` — 10,344.52 shares
- `0xf519…906b` — 9,223.917 shares

**Top NO holders**

- `0x3e2f…aaf8` — 25,819.65 shares
- `0x2005…75ea` — 23,214.29 shares
- `0x0ebb…cb1a` — 19,152.731 shares
- `0xb0da…f3f0` — 14,180 shares
- `0xfe78…0319` — 10,107.139 shares

## 7-day price-history summary

| Metric | Value |
|---|---|
| Sample count | 25 |
| Window start | 2026-05-06T17:00:13.000Z |
| Window end | 2026-05-07T16:17:05.000Z |
| Range | 53¢ → 86¢ |
| Net change | +30.0pp |

Full series available as JSON via `GET https://orrery.me/api/markets?slugs=wta-siniako-kalinsk-2026-05-07` — the chart on the human page is rendered from this same data.

## Cite this

```
Orrery. "Internazionali BNL d'Italia: Katerina Siniakova vs Anna Kalinskaya — 47% on Polymarket."
Retrieved 2026-05-07T16:18:20.474Z from https://orrery.me/markets/wta-siniako-kalinsk-2026-05-07.
```

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