Alex de Minaur vs. Matteo Arnaldi: Total Sets O/U 2.5
Probability
99¢
1h
+48.4pp
24h
+61.5pp
24h Vol
$156.43
Liquidity
$5.4K
Canonical status
confidence: highSource status (Polymarket)
Derived status (Orrery)
Reason
YES price is near 100¢ but the market has not been officially resolved.
Treat as effectively priced-in, not settled. The market is still live until expiry.
Resolution & Risk
LOW risk- End date
- May 15, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Probability (last 7 days)
+0.0pp 7dWhy did it move?
Structured · 2 factors- 01Price move
Up 61pp over 24h
Now 99¢; +48.4pp in the last hour.
- 02Liquidity
Thin liquidity
Only $5.4k of visible book — small orders can move the line. Treat the probability as a soft estimate.
What to track next
- Set an alert if probability drops back below 94¢ — that's where this move would be reversing.
- Add to your watchlist — Home will show probability deltas since your last visit.
- Compare against sibling markets in the same event below — divergent pricing across related contracts is the cleanest tell.
Verification actions only — never trade recommendations.
Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.
Resolution & Risk
LOW risk- End date
- May 15, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Timeline
critical · price · trade flowCritical
- 0s agoResolveLOW
Market resolves in 165.4h
Price movement
+61.5pp over the last 24h, now 99¢.
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
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Market Description
This market refers to the tennis match between Alex de Minaur and Matteo Arnaldi in the Internazionali BNL d'Italia, originally scheduled for May 8, 2026 at 5:00AM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set for total set markets. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official ATP statistics.
Why this category?
confidence: highCategory
Source
Matched term
atp Reason
ATP-tour tennis tournament marker.
Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.
FAQ — questions readers actually ask
What is the current Polymarket probability for "Alex de Minaur vs. Matteo Arnaldi: Total Sets O/U 2.5"?
As of Fri, 08 May 2026 11:33:23 GMT, YES is priced at 99% implied probability on Polymarket. The price changed +61.5pp in the last 24 hours, +48.4pp in the last hour, and +0.0pp in the last 7 days.
When does this market resolve?
This market resolves by May 15, 2026 (2026-05-15T09:00:00.000Z). Resolution is determined from https://www.atptour.com/en/scores/current.
What source determines the outcome?
Resolution is sourced from https://www.atptour.com/en/scores/current. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.
How much is being traded on this market?
$156.43 of trading volume in the last 24 hours. Lifetime volume on Polymarket: $156.43. Open liquidity in the YES/NO orderbooks: $5.4K. Spread between best bid and best ask: 0.9¢.
Is this a trade recommendation?
No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.
How fresh is this data and where does it come from?
This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.
Alerts
In-app banners fire as soon as a rule is satisfied. Email, Telegram, and Discord delivery are coming soon — every existing rule will keep working without changes.
