The Prediction Markets

UFC Fight Night: Alessandro Costa vs. Stewart Nicoll (Flyweight, Prelims)

Closed
Apr 5, 2026
Traded
$131K
Venues
Polymarket
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This market has closed

Trading ended on Apr 5, 2026. The prices below are the last ones before it closed and no longer update. Browse open markets

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 203 days ago. Ages are as of when this page was built.

  • Polymarket
Costa to win by KO/TKO?
100%
Polymarket 100%polled, 4880 h ago
Polymarket
Contract
Costa to win by KO/TKO?
Last price
100%
As of
Polled 203 d ago
Buy Yes
—
Sell Yes
99.9¢
Volume
$912
Trade this on Polymarket
Fight won by KO/TKO?
100%
Polymarket 100%polled, 4880 h ago
Polymarket
Contract
Fight won by KO/TKO?
Last price
100%
As of
Polled 203 d ago
Buy Yes
—
Sell Yes
99.9¢
Volume
$26
Trade this on Polymarket
O/U 0.5 Rounds
100%
Polymarket 100%polled, 4880 h ago
Polymarket
Contract
O/U 0.5 Rounds
Last price
100%
As of
Polled 203 d ago
Buy Yes
—
Sell Yes
99.9¢
Volume
$252
Trade this on Polymarket
O/U 1.5 Rounds
100%
Polymarket 100%polled, 4880 h ago
Polymarket
Contract
O/U 1.5 Rounds
Last price
100%
As of
Polled 203 d ago
Buy Yes
—
Sell Yes
99.9¢
Trade this on Polymarket
Fight to Go the Distance?
0.1%
Polymarket 0.1%polled, 4880 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Fight to Go the Distance?
Last price
0.1%
As of
Polled 203 d ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$58
Trade this on Polymarket
Fight won by submission?
0.1%
Polymarket 0.1%polled, 4880 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Fight won by submission?
Last price
0.1%
As of
Polled 203 d ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$31
Trade this on Polymarket
Nicoll to win by KO/TKO?
0.1%
Polymarket 0.1%polled, 4880 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Nicoll to win by KO/TKO?
Last price
0.1%
As of
Polled 203 d ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$575
Trade this on Polymarket
O/U 2.5 Rounds
0.1%
Polymarket 0.1%polled, 4880 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
O/U 2.5 Rounds
Last price
0.1%
As of
Polled 203 d ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$10K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: ufc.com

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Costa to win by KO/TKO?
  • Fight won by KO/TKO?
  • O/U 0.5 Rounds

About this market

Final prediction market prices for "UFC Fight Night: Alessandro Costa vs. Stewart Nicoll (Flyweight, Prelims)". Costa to win by KO/TKO? last traded at 100%. Next is Fight won by KO/TKO? at 100%. $131K has traded across 8 outcomes on Polymarket. The market closed on Apr 5, 2026.

This market will resolve to "Alessandro Costa" if Alessandro Costa is officially declared the winner of the fight against Stewart Nicoll at UFC Fight Night: Moicano vs. Duncan, scheduled for April 4, 2026. It will resolve to "Stewart Nicoll" if Stewart Nicoll 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 April 18, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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