UFC Fight Night: Cody Brundage vs. Andre Petroski (Middleweight, Prelims)
Probability
37¢
1h
+0.0pp
24h
-1.0pp
24h Vol
$195.07
Liquidity
$6.7K
Canonical status
confidence: highSource status (Polymarket)
Derived status (Orrery)
Reason
Active market, expiry beyond the near-expiry window.
Resolution & Risk
LOW risk- End date
- May 17, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Probability (last 7 days)
-11.0pp 7dWhy did it move?
Structured · 2 factors- 01Price move
Down 1pp over 24h
Now 37¢; flat in the last hour.
- 02Liquidity
Thin liquidity
Only $6.7k of visible book — small orders can move the line. Treat the probability as a soft estimate.
What to track next
- Set an alert at the next ±5pp probability move so you find out before the next leg.
- 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 17, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Timeline
critical · price · trade flowCritical
- 0s agoScheduled resolutionLOW
Market resolves in 122.9h
Price movement
-1.0pp over the last 24h, now 37¢.
Biggest hourly move: -11.5pp at 2d ago (to 36¢).
Show top 8 of 47 hourly moves
- 2d ago · -11.5pp → 36¢
- 2d ago · -11.0pp → 36¢
- 3d ago · -11.0pp → 37¢
- 3d ago · -11.0pp → 37¢
- 3d ago · -11.0pp → 37¢
- 3d ago · -11.0pp → 37¢
- 3d ago · -11.0pp → 37¢
- 4d ago · -11.0pp → 37¢
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.
Related Markets
14- 35¢-0.5
Fight to Go the Distance?
Sports · Vol $0.00
- 33¢-0.5
Will the fight be won by KO or TKO?
Sports · Vol $0.00
- 50¢0.0
Will Cody Brundage win by KO or TKO?
Sports · Vol $0.00
- 50¢0.0
Will Andre Petroski win by KO or TKO?
Sports · Vol $0.00
- 28¢-0.5
Will the fight be won by submission?
Sports · Vol $0.00
- 50¢0.0
O/U 0.5 Rounds
Sports · Vol $0.00
- 67¢+0.5
O/U 1.5 Rounds
Sports · Vol $0.00
- 51¢0.0
O/U 2.5 Rounds
Sports · Vol $0.00
- 42¢+1.0
Pistons vs. Cavaliers
Sports · Vol $3.8M
- 0¢-54.4
Will Millwall FC win on 2026-05-11?
Sports · Vol $1.5M
- 0¢-0.1
Will Curaçao win the 2026 FIFA World Cup?
Sports · Vol $1.4M
- 0¢-0.1
Will Ivory Coast win the 2026 FIFA World Cup?
Sports · Vol $1.3M
- 50¢-1.0
Spread: Cavaliers (-3.5)
Sports · Vol $1.3M
- 13¢-48.0
New York Yankees vs. Baltimore Orioles
Sports · Vol $1.2M
Market Description
This market will resolve to "Cody Brundage" if Cody Brundage is officially declared the winner of the fight against Andre Petroski at UFC Fight Night: Allen vs. Costa, scheduled for May 16, 2026. It will resolve to "Andre Petroski" if Andre Petroski is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond May 30, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
Why this category?
confidence: highCategory
Source
Matched term
ufc Reason
UFC — Sports.
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 "UFC Fight Night: Cody Brundage vs. Andre Petroski (Middleweight, Prelims)"?
As of Tue, 12 May 2026 01:03:02 GMT, YES is priced at 37% implied probability on Polymarket. The price changed -1.0pp in the last 24 hours, +0.0pp in the last hour, and -11.0pp in the last 7 days.
When does this market resolve?
This market resolves by May 17, 2026 (2026-05-17T03:59:59.999Z). Resolution is determined from https://www.ufc.com/events.
What source determines the outcome?
Resolution is sourced from https://www.ufc.com/events. 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?
$195.07 of trading volume in the last 24 hours. Lifetime volume on Polymarket: $464.97. Open liquidity in the YES/NO orderbooks: $6.7K. Spread between best bid and best ask: 3.0¢.
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 digests are wired to a server-side cron and continue while your tabs are closed. Telegram and Discord are planned — every existing rule will keep working as channels light up.