Fight Night: Vieira vs Bryczek: Odds
By Corbin V King · Updated September 26, 2026
Live score desk
Live scores appear here when an exact game match is available.
As of September 26, 2026, the prediction market implies a 61% chance of Rodolfo Vieira on Kalshi.
Implied probability snapshot
Market favorite
Rodolfo Vieira — market favorite
Kalshi
61%
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
Fight Night
10 categories priced
Still contested
6
inside 15 points
Tightest
+4
Demopoulos vs Jauregui: Odds
Demopoulos vs Jauregui: Odds
Contested- O/U 0.5 Rounds91%
- Yazmin Jauregui87%
- O/U 1.5 Rounds72%
- O/U 2.5 Rounds63%
- Decision or Draw61%
- Jauregui to win by KO/TKO?26%
+4 pt margin · 8 nominees · 2 more
Hernandez vs Dumas: Odds
Contested- Luis Hernandez69%
- O/U 0.5 Rounds63%
- Decision or Draw50%
- Dumas in Round 250%
- Dumas in Round 350%
- Dumas to win by KO/TKO?32%
+6 pt margin · 8 nominees · 2 more
Hiestand vs Nakamura: Odds
Contested- O/U 0.5 Rounds85%
- Rinya Nakamura76%
- O/U 1.5 Rounds65%
- Ends before Round 3?48%
- O/U 2.5 Rounds48%
- Nakamura to win by KO/TKO?42%
+9 pt margin · 8 nominees · 2 more
Amaya vs Machado: Odds
Contested- O/U 0.5 Rounds93%
- O/U 1.5 Rounds81%
- O/U 2.5 Rounds71%
- Decision or Draw69%
- Fight to Go the Distance?69%
- Valesca Machado vs. Melissa Amaya66%
+12 pt margin · 8 nominees · 2 more
Rosas Jr vs Barcelos: Odds
Contested- O/U 0.5 Rounds93%
- O/U 1.5 Rounds81%
- O/U 2.5 Rounds71%
- O/U 3.5 Rounds61%
- Raul Rosas Jr59%
- Raoni Barcelos vs. Raul Rosas Jr.42%
+12 pt margin · 8 nominees · 2 more
Osmanli vs Uulu: Odds
Contested- O/U 0.5 Rounds85%
- Mehemmedeli Osmanli72%
- O/U 1.5 Rounds61%
- Ends before Round 3?49%
- O/U 2.5 Rounds46%
- Ilimbek Akylbek Uulu vs. Mehemmedeli Osmanli28%
+13 pt margin · 8 nominees · 2 more
Jackson vs Simon: Odds
Clear favourite- O/U 0.5 Rounds90%
- O/U 1.5 Rounds74%
- Montel Jackson67%
- O/U 2.5 Rounds65%
- Decision or Draw58%
- Ricky Simon vs. Montel Jackson33%
+16 pt margin · 8 nominees · 2 more
Vieira vs Bryczek: Odds
Clear favourite- O/U 0.5 Rounds79%
- Rodolfo Vieira61%
- Ends before Round 3?58%
- O/U 1.5 Rounds56%
- Robert Bryczek40%
- Robert Bryczek vs. Rodolfo Vieira39%
+18 pt margin · 8 nominees · 2 more
Harrell vs Brener: Odds
Clear favourite- O/U 0.5 Rounds89%
- O/U 1.5 Rounds70%
- O/U 2.5 Rounds55%
- Josiah Harrell53%
- Decision or Draw47%
- Elves Brener vs. Josiah Harrell46%
+19 pt margin · 8 nominees · 2 more
Bellato vs Edwards: Odds
Clear favourite- O/U 0.5 Rounds84%
- Rodolfo Bellato64%
- O/U 1.5 Rounds60%
- Ends before Round 3?48%
- Fight won by KO/TKO?46%
- Christian Edwards vs. Rodolfo Bellato37%
+20 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 26, 2026
| Outcome | Venue | Implied | Volume |
|---|---|---|---|
Robert Bryczek vs. Rodolfo Vieira Moneyline | Polymarket | 39% | $43.4K |
Bryczek to win by KO/TKO? Moneyline | Polymarket | 31% | — |
Vieira to win by KO/TKO? Moneyline | Polymarket | 9% | — |
O/U 0.5 Rounds Totals | Polymarket | 79% | — |
Rodolfo Vieira | Kalshi | 61% | 55.5K contracts |
Ends before Round 3? | Polymarket | 58% | $25 |
O/U 1.5 Rounds Totals | Polymarket | 56% | $1.1K |
Robert Bryczek | Kalshi | 40% | 40.6K contracts |
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 26, 2026 snapshot · 42/100 · Developing 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 | 10/20 | 1 live wire headline lexically matched to this event — real, citable corroboration that the story is moving. |
| 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. |
Citable signals (1)
Wire headlines retained with this event snapshot — corroboration behind the news component. Each link is the original source.
- Senegal draw in Vieira debut, Nigeria survive scare, but Cape Verde crash
Al Jazeera · Sep 26, 2026
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 Rodolfo Vieira at 61% 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 Saturday, September 26 — not a tip or a forecast of the result.
Prediction markets make Rodolfo Vieira the favorite in Fight Night: Vieira vs Bryczek, pricing the outcome at 61% implied probability on Kalshi as of Saturday, September 26. 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. Rodolfo Vieira leads at 61%, a clear favorite, ahead of Robert Bryczek at 40%. 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 61% a live estimate rather than a settled call.
Reading the number
A contract at 61¢ implies a 61% 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 Saturday, September 26; 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 Fight Night: Vieira vs Bryczek?
As of Saturday, September 26, Kalshi price Rodolfo Vieira at 61% 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 Rodolfo Vieira?
The prediction market implies a 61% chance of Rodolfo Vieira on Kalshi as of Saturday, September 26 — 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
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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/fight-night-vieira-vs-bryczek-odds-2026-09-27?utm_source=wet-embed&utm_medium=attribution&utm_content=fight-night-vieira-vs-bryczek-odds-2026-09-27">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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