331: Gandra vs Diaz: Prediction, Odds & Probability
By Corbin V King · Updated September 18, 2026
Live score desk
Live scores appear here when an exact game match is available.
As of September 18, 2026, the prediction market implies a 83% chance of Ryan Gandra on Kalshi.
Implied probability snapshot
Market favorite
Ryan Gandra — market favorite
Kalshi
83%
Implied
Venue listing
View the live market on Kalshi
This W.E.T. observation is dated. Open Kalshi to verify later availability and price changes.
Driving coverage
Open the Newsroom →The slate at this observation
Ceremony
331
13 categories priced
Still contested
12
inside 15 points
Tightest
+0
Moicano vs Ortega: Prediction, Odds & Probability
Moicano vs Ortega: Prediction, Odds & Probability
Contested- Renato Moicano vs. Brian Ortega64%
- Renato Moicano64%
- Moicano to win by KO/TKO?51%
- Decision or Draw51%
- Ends before Round 2?51%
- Ends before Round 3?51%
+0 pt margin · 8 nominees · 2 more
Steveson vs Sharaf: Prediction, Odds & Probability
Contested- Gable Steveson vs. Sean Sharaf93%
- Gable Steveson92%
- Ends before Round 3?88%
- Steveson to win by KO/TKO?74%
- Ends before Round 2?71%
- Fight won by KO/TKO?67%
+1 pt margin · 8 nominees · 2 more
Tsarukyan vs Ruffy: Prediction, Odds & Probability
Contested- Arman Tsarukyan vs. Mauricio Ruffy74%
- Arman Tsarukyan73%
- O/U 0.5 Rounds72%
- Ends before Round 5?68%
- O/U 1.5 Rounds61%
- Ends before Round 4?57%
+1 pt margin · 8 nominees · 2 more
Gandra vs Diaz: Prediction, Odds & Probability
Contested- Ryan Gandra83%
- Ends before Round 3?81%
- Fight won by KO/TKO?66%
- O/U 0.5 Rounds63%
- Gandra to win by KO/TKO?62%
- Ends before Round 2?56%
+2 pt margin · 8 nominees · 2 more
Tuivasa vs Despaigne: Odds
Contested- Robelis Despaigne84%
- Ends before Round 3?82%
- Despaigne to win by KO/TKO?75%
- Fight won by KO/TKO?70%
- O/U 0.5 Rounds62%
- Ends before Round 2?55%
+2 pt margin · 8 nominees · 2 more
Aswell vs Yoo: Prediction, Odds & Probability
Contested- O/U 0.5 Rounds73%
- Joo Sang Yoo68%
- O/U 1.5 Rounds66%
- O/U 2.5 Rounds64%
- Decision or Draw58%
- Michael Aswell vs. JooSang Yoo34%
+5 pt margin · 8 nominees · 2 more
O'Neill vs Moura: Prediction, Odds & Probability
Contested- O/U 0.5 Rounds74%
- Casey O'Neill vs. Eduarda Moura68%
- Casey O'Neill68%
- O/U 1.5 Rounds68%
- O/U 2.5 Rounds68%
- Fight to Go the Distance?64%
+6 pt margin · 8 nominees · 2 more
Shahbazyan vs Ferreira: Odds
Contested- O/U 0.5 Rounds69%
- Edmen Shahbazyan vs. Brunno Ferreira63%
- Edmen Shahbazyan62%
- O/U 1.5 Rounds57%
- Ends before Round 3?54%
- Fight won by KO/TKO?52%
+6 pt margin · 8 nominees · 2 more
Vera vs Jourdain: Prediction, Odds & Probability
Contested- O/U 0.5 Rounds75%
- O/U 2.5 Rounds69%
- O/U 1.5 Rounds69%
- Charles Jourdain66%
- Fight to Go the Distance?66%
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+6 pt margin · 8 nominees · 2 more
Menifield vs Baraniewski: Odds
Contested- Ends before Round 3?79%
- Iwo Baraniewski71%
- Fight won by KO/TKO?65%
- O/U 0.5 Rounds61%
- Ends before Round 2?59%
- Baraniewski to win by KO/TKO?53%
+8 pt margin · 8 nominees · 2 more
Chikadze vs Brito: Prediction, Odds & Probability
Contested- Joanderson Brito79%
- O/U 0.5 Rounds70%
- O/U 1.5 Rounds61%
- Ends before Round 3?52%
- Fight won by submission?43%
- Brito to win by KO/TKO?30%
+9 pt margin · 8 nominees · 2 more
Van vs Pantoja: Prediction, Odds & Probability
Contested- O/U 0.5 Rounds74%
- O/U 1.5 Rounds65%
- Ends before Round 5?57%
- Joshua van57%
- O/U 2.5 Rounds57%
- Alexandre Pantoja vs. Joshua Van44%
+9 pt margin · 8 nominees · 2 more
Pitbull vs Choi: Prediction, Odds & Probability
Clear favourite- O/U 0.5 Rounds90%
- Doo Ho Choi72%
- O/U 1.5 Rounds60%
- O/U 2.5 Rounds51%
- Fight to Go the Distance?48%
- Choi to win by KO/TKO?36%
+18 pt margin · 8 nominees · 2 more
Categories represented in this snapshot, tightest observed race first. The lower bar is the runner-up; the gap between them is the recorded margin.
Odds — dated market snapshotas of September 18, 2026
| Outcome | Venue | Implied | Volume |
|---|---|---|---|
Gandra to win by KO/TKO? Moneyline | Polymarket | 62% | $53 |
Diaz to win by KO/TKO? Moneyline | Polymarket | 28% | — |
Ozzy Diaz vs. Ryan Gandra Moneyline | Polymarket | 19% | $5.8K |
Ryan Gandra | Kalshi | 83% | 11.1K contracts |
Ends before Round 3? | Polymarket | 81% | — |
Fight won by KO/TKO? | Polymarket | 66% | $7 |
O/U 0.5 Rounds Totals | Polymarket | 63% | $721 |
Ends before Round 2? | Polymarket | 56% | — |
Implied probability = the venue’s YES price read as a percentage at capture. This is a dated observation; use the attributed venue link, when available, to verify later changes.
Evidencestored reads, labeled by measure
Evidence
Evidence pending— stored reads in flight; the market above is already complete.
W.E.T. Score
How much signal is behind this number?
The W.E.T. Score grades the evidence, not the outcome. Five inputs — comparable volume evidence, news corroboration, cross-venue verification, market coverage, and track-record depth — scored against how much verifiable signal sits behind the headline probability.
Scored from the September 18, 2026 snapshot · 32/100 · Thin Signal
| Component | Points | What the data says |
|---|---|---|
| Liquidity | 10/30 | The event combines unlike venue-native volume units. W.E.T. does not add contracts to dollars, so this component remains at the documented neutral 10/30. |
| News corroboration | 0/20 | No wire headlines matched this event at snapshot time — the price stands alone. |
| Cross-venue verification | 8/20 | No canonical exact-match pair is available for this snapshot. Related listings are not compared, so this component remains at the documented neutral 8/20. |
| Market coverage | 12/15 | 8 tracked markets on this event — more side markets and strikes mean more angles pricing the same story. |
| Track-record depth | 2/15 | 1 attributable day tied to one venue, favorite, and listing key. Legacy unkeyed points earn no depth credit. |
The W.E.T. Score measures evidence quality — comparable volume, verified agreement, coverage, and corroboration behind a price. Venue-reported contract counts are never treated as dollars. It is not a prediction of the outcome, not a rating of whether the favorite wins, and not trading advice: a Thin Signal market can still resolve YES, and a Prime Signal market can still resolve NO. Full weighting and worked examples in the methodology.
The desk layer
Prediction desk tools
The published reading above is complete. Account-aware tools load after the article settles so identity work cannot compete with the answer.
Checking desk access…
Key takeaways
- One tracked Kalshi listing prices Ryan Gandra at 83% implied probability.
- Venue volume remains separate because this event combines dollar volume and contract counts.
- This is implied probability from venue prices observed as of Friday, September 18 — not a tip or a forecast of the result.
Prediction markets make Ryan Gandra the favorite in 331: Gandra vs Diaz, pricing the outcome at 83% implied probability on Kalshi as of Friday, September 18. Related venue listings are shown separately; W.E.T. has not confirmed them as the same outcome for a numerical comparison. Here is the dated market read.
What the prediction market is pricing
Across 21 tracked market rows, Venue volume remains separate because this event combines dollar volume and contract counts. Ryan Gandra leads at 83%, a strong favorite, ahead of Decision or Draw at 28%. Related venue listings remain separate until the canonical graph confirms outcome and settlement-basis equivalence.
How sports markets like this settle
Sports markets resolve on the game itself — a final result, a score line, a player total. The implied probability is what traders are collectively paying for each outcome, repriced live as lineups, injuries, and in-game events land.
What could move it
Team news and injuries, roster and lineup changes, weather for outdoor games, and the way the line drifts from open to close as sharp money arrives are what move these prices. Because real money is on the line, the price reprices quickly around these catalysts — which is what makes 83% a live estimate rather than a settled call.
Reading the number
A contract at 83¢ implies a 83% chance the market resolves YES: a dated venue observation of implied probability, not a forecast or a tip from W.E.T. The figure above is a snapshot as of Friday, September 18; odds move continuously, so open Kalshi for the current line.
Track this and every Sports market on the live Event Dashboard, or browse all Sports odds & probability. For the mechanics, see the prediction markets guide.
Frequently asked questions
Who will win 331: Gandra vs Diaz?
As of Friday, September 18, Kalshi price Ryan Gandra at 83% implied probability. Implied probability is the market's YES price read as a percentage; it moves continuously, so check the live venue for the current line.
What is the probability of Ryan Gandra?
The prediction market implies a 83% chance of Ryan Gandra on Kalshi as of Friday, September 18 — that is what traders are collectively pricing, not a forecast from W.E.T.
What is the difference between the Kalshi and Polymarket odds?
Both venues carry related listings. W.E.T. publishes them separately until canonical identity and settlement-basis checks confirm that a numerical comparison is valid.
Are these odds a prediction of the outcome?
No. These are dated venue observations shown as implied probability — a record of what traders were collectively paying at the stated time, not advice or a forecast from W.E.T. Prediction market trading involves risk of loss; always verify current prices and rules on the venue.
Markets & sources
Best Prediction Market Platforms: Kalshi, Polymarket & Beyond
How Kalshi, Polymarket, ForecastEx, PredictIt, Manifold, and Metaculus compare on regulation, funding rails, liquidity, and fees — no hype, just trade-offs.
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Preview
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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Odds via <a href="https://www.worldeventtrading.com/predictions/331-gandra-vs-diaz-odds-2026-09-20?utm_source=wet-embed&utm_medium=attribution&utm_content=331-gandra-vs-diaz-odds-2026-09-20">World Event Trading</a></p>W.E.T. is an information and data service — not a gambling operator. We take no bets and hold no funds. Nothing here is financial, legal, betting, or tax advice, or a prediction of the outcome, and prediction market trading involves risk of loss. Prediction markets may be restricted or illegal in your jurisdiction — check local law. 18+. See how we source and compute these odds in our methodology, or read the full disclaimer.
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