---
title: "De Oliveira vs DE MATTOS SILVA"
canonical_url: https://betcrypto.now/events/de-oliveira-vs-de-mattos-silva
status: settled
kickoff_at: 2026-09-21T12:00:00+00:00
trading_closes_at: 2026-10-05T12:00:00+00:00
settled_at: 2026-09-21T19:29:13+00:00
total_volume_usd: 39233.61
venues: ["Kalshi", "Polymarket", "Polymarket US"]
categories: ["Sports", "Tennis"]
prices_as_of: 2026-10-09T14:44:31+00:00
publisher: BetCrypto
data_api: https://betcrypto.now/api/v1/events/de-oliveira-vs-de-mattos-silva
---

# De Oliveira vs DE MATTOS SILVA

Settled · kickoff 2026-09-21 12:00 UTC · $39,234 traded · listed on Kalshi, Polymarket, Polymarket US

## Result

Voided — no outcome won. Settled 2026-09-21.

## About

The following market refers to the De Oliveira vs DE MATTOS SILVA professional tennis match in the 2026 W15 Belem Round of 16 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), all markets will resolve to $0.50. If a player withdraws or forfeits after a match has started, that player will resolve to No. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).

Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.

_From Kalshi's listing._

## Other markets

- Completed Match — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 1 Winner — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 2 Winner — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Total Sets: O/U 2.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 1 O/U 8.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 1 O/U 9.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 1 O/U 10.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 2 O/U 8.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 2 O/U 9.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set 2 O/U 10.5 — 2 outcomes
- Total O/U 21.5 — 2 outcomes
- Total O/U 22.5 — 2 outcomes
- Total O/U 23.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set Handicap +/-1.5 — 2 outcomes
- W15 Belem: Ana Cristina De Oliveira vs ISABELA DE MATTOS SILVA Set Handicap +/-1.5 — 2 outcomes

_Every market's prices are on the event page._

## Open on a venue

- [Kalshi](https://betcrypto.now/go/e/580527?via=md)
- [Polymarket](https://betcrypto.now/go/e/582162?via=md)
- [Polymarket US](https://betcrypto.now/go/e/580689?via=md)

---

Probability is the cross-venue consensus (book midpoints, 0–100%). Venue columns are what buying costs there (the ask). Prices move constantly; re-check at the canonical URL or https://betcrypto.now/api/v1/events/de-oliveira-vs-de-mattos-silva.

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