UFC 334: Cesar Almeida vs. Donte Johnson (Middleweight, Prelims)

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Tracked on one venue, with Crossbook's own call on the record.

TradingEvent date Sat, 14 Nov 2026, 22:00 UTCContract settles 15 Nov 2026Last checked 14 Nov 2026, 12:15 UTC
PM

Bid/ask midpoint · retrieved 2026-11-14T12:15:27.078Z. Venue quote-update time is unavailable. Readings can be asynchronous.

34.5%bid 34.0% / ask 35.0%24h volume $71K · liquidity $107Kas of 14 Nov, 12:15 UTCView on Polymarket

Crossbook forecast

35.3%against a market price of 38.5% at the timeOpen

Logged 12 Nov 2026, 14:02 UTC

  • The ~2% combined probability of draw or no contest resolves 50-50 rather than for either fighter, slightly compressing both sides' win probabilities below a pure two-way split.
  • Record gap is the dominant signal: Johnson is 9-0 while Almeida is 7-3, and undefeated-versus-multi-loss matchups in the UFC historically favor the undefeated fighter by a clear margin.
  • Recency and momentum favor Johnson: he stopped Eric McConico in round one in August and beat Cody Brundage in March, while Almeida was knocked out in round one by Damian Pinas in July, his most recent outing.
  • A first-round KO loss four months out raises finishing-vulnerability concerns for Almeida, and quick turnarounds after stoppage losses carry additional risk, though four months is an adequate recovery window.
  • No injury, suspension, or weight issue could be established for either fighter, and both are listed active with the bout officially scheduled, so no adjustment for cancellation risk beyond the standard tail.
  • Almeida's experience edge (10 pro fights vs 9, and presumably tougher opposition) and MMA's inherent variance keep this well short of a blowout price; single-fight comparisons are anchors, not distributions.

What would change it: A disclosed injury, missed weight, or a sportsbook consensus showing Johnson priced shorter than roughly -200 would materially move this estimate.

-3.3 probability points from the market at generation · med confidence · Polymarket

Base rate: No computed outside view is provided; absent a usable favorite-win rate in the retrieved facts (the only rates given are for draws at 0.9% of decisions and no-contests at 0.9% of bouts/a cited source), the class base rate for one named fighter winning a UFC bout is near 50% once the ~2% draw/NC tail is ignored.

Chosen by Crossbook's published selection rule (auto-v2), not by hand.

Formed blind at 32.0%, without sight of the price; published at 35.3%, the market’s 38.5% moved 50% of the way toward it by fixed rule. None of the cited facts could be shown to be one the market had not already priced. That check is recorded, not enforced.

What this call was reading

  • The UFC middleweight historical table lists 11 no contests among 1,159 bouts, a rate of 0.9%. [web:54] as of 2026-11-09 · fightmatrix.com · within 14 days of this call
  • The UFC middleweight historical table lists 4 draws among 465 decisions, a rate of 0.9% of decisions. [web:54] as of 2026-11-09 · fightmatrix.com · within 14 days of this call
  • Cesar Almeida's professional record is 7-3-0. [web:1] as of 2026-11-08 · ufc.com · within 14 days of this call
  • Donte Johnson's professional record is 9-0-0. [web:2] as of 2026-11-10 · ufc.com · within 14 days of this call
  • Cesar Almeida lost to Damian Pinas by KO/TKO at 4:44 of round one on July 11, 2026. [web:1] as of 2026-07-11 · ufc.com
  • Donte Johnson defeated Eric McConico by KO/TKO at 1:38 of round one on August 15, 2026. [web:2] as of 2026-08-15 · ufc.com
  • Almeida had already fought in 2026 before his scheduled November 14 bout, losing to Damian Pinas on July 11. [web:1] as of 2026-07-11 · ufc.com
  • Johnson had already fought in 2026 before his scheduled November 14 bout, defeating Cody Brundage on March 7 and Eric McConico on August 15. [web:2] as of 2026-08-15 · ufc.com
  • The UFC lists Cesar Almeida as active. [web:1] as of 2026-11-08 · ufc.com · within 14 days of this call
  • The UFC lists Donte Johnson as active. [web:2] as of 2026-11-10 · ufc.com · within 14 days of this call
  • Donte Johnson versus Cesar Almeida is listed as a middleweight bout on the UFC 334 prelims scheduled for November 14, 2026, at Madison Square Garden in New York. [web:14] as of 2026-11-12 · forbes.com · within 14 days of this call

Polymarket prices this at 34.5%. No verified equivalent is currently listed on the other venue, so there is no cross venue comparison on this page.

Volume over the last 24 hours is active, at about $70,587 on the busier venue. It closes today, so short term moves may say more about the settlement mechanics than about the underlying question.

Related markets

Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.

This call is line t-0306 of the public append-only ledger, committed when it was published. It appears on the record alongside every other call, resolved and open.