UFC fight night promo code: DEFI | Offer: $10 bonus after $10 in trades | Deposit required: $1 minimum
Kalshi is offering a $10 promo for UFC Vegas 115: Moicano vs. Duncan. New users qualify for a $10 bonus using Kalshi promo code DEFI for Moicano vs. Duncan. Prelims start at 5pm ET, main card at 8pm ET on Paramount+.
Tonight’s main event is a five-round lightweight bout between ranked contender Renato Moicano and surging teammate Chris Duncan. Moicano, 36 and ranked 10th at lightweight, while Duncan is 15-2, with four wins in a row. A victory tonight puts him inside the top 10 for the first time. Moicano’s own read on it: “I still think I’m better than him. It’s just business.” Kalshi has markets open on all 13 fights, with $187,191 already traded on the main event alone. Use the Kalshi promo code DEFI and grab a free $10 after your first $10 in UFC trades.
This new user promo is open to US residents 18 years or older. Sports market availability varies by state due to ongoing regulatory proceedings.
How to claim the free $10 bonus
- Download the Kalshi app or go to kalshi.com
- Register and enter promo code DEFI
- Deposit at least $1
- Trade $10 across any markets — cumulative, not a single contract
- $10 bonus posts automatically once the threshold clears
Kalshi has all 12 fights on tonight’s card priced and trading. New users can claim a $10 bonus with promo code DEFI — deposit $1 and trade $10 across any of the markets below to unlock it. The main event is drawing the most volume at $187,191, but several undercard markets are already well into six figures as prelims progress.
| Market Option | Probability (%) | Payout Multiple | Trade Volume |
|---|---|---|---|
| Kamaka III vs Hope | |||
| Kai Kamaka III | 59% | 1.60x | $92,213 |
| Dakota Hope | 41% | 2.34x | |
| Barbosa vs Gatto | |||
| Dione Barbosa | 50% | 1.86x | $77,431 |
| Melissa Gatto | 50% | 1.93x | |
| Bekoev vs Gore | |||
| Azamat Bekoev | 85% | 1.16x | $115,984 |
| Tresean Gore | 15% | 6.29x | |
| Pereira vs Cowan | |||
| Alice Pereira | 55% | 1.73x | $47,869 |
| Hailey Cowan | 45% | 2.14x | |
| Vannata vs Flowers | |||
| Landon Vannata | 66% | 1.40x | $30,719 |
| Darrius Flowers | 34% | 2.81x | |
| Costa vs Nicoll | |||
| Alessandro Costa | 79% | 1.22x | $41,401 |
| Stewart Nicoll | 21% | 4.51x | |
| Pat vs Petersen | |||
| Thomas Petersen | 51% | 1.90x | $63,271 |
| Guilherme Pat | 49% | 1.97x | |
| Delano vs Ruchala | |||
| Jose Delano | 68% | 1.42x | $48,970 |
| Robert Ruchala | 32% | 2.98x | |
| McMillen vs Zecchini | |||
| Tommy McMillen | 86% | 1.14x | $130,970 |
| Manolo Zecchini | 14% | 6.74x | |
| Ewing vs Estevam | |||
| Ethyn Ewing | 54% | 1.73x | $105,492 |
| Rafael Estevam | 46% | 2.09x | |
| Yakhyaev vs Ribeiro | |||
| Abdul-Rakhman Yakhyaev | 90% | 1.09x | $166,695 |
| Brendson Ribeiro | 10% | 9.41x | |
| Jandiroba vs Ricci | |||
| Virna Jandiroba | 52% | 1.79x | $49,963 |
| Tabatha Ricci | 48% | 2.01x | |
| Moicano vs Duncan | $187,191 | ||
| Chris Duncan | 55% | 1.73x | |
| Renato Moicano | 45% | 2.14x |
Announcer markets
Beyond the fight outcome contracts, Kalshi offers a category exclusive to the platform: markets tied to specific words and phrases called by the broadcast announcers during each fight. For the Moicano vs. Duncan main event, traders are currently pricing “Knockout / Knock Out” at 57% and Moicano’s nickname “Money” being mentioned at 50%, with $12,534 in volume across 17 markets.
The Yakhyaev vs. Ribeiro bout has its own announcer market set with “Knockout / Knock Out” at 51% and “Train / Trained / Training” — a nod to Yakhyaev’s credentials — at 60%. These markets settle fast and add a layer of in-broadcast trading that no other prediction market platform currently offers.
Markets with the most volume for tonight
Duncan is 55% on Kalshi with $187,191 traded — the most volume on the card. He’s 15-2, won four straight, and finished three of those by submission. Moicano is 20-7-1, has lost two in a row, and turns 37 this month. The market’s read is straightforward.
The co-main is trading at 52-48 — the closest market on the card. Jandiroba is the slight favorite at 52% despite coming off a loss to Dern. Ricci has won her last fight and holds the ranking edge she needs to be dangerous on the feet. The near-even split reflects what the fight actually is: two top-10 strawweights with no obvious stylistic mismatch.
If you’re building toward $10 before the main card, the three highest-confidence markets on the card right now are Yakhyaev at 90% ($166,695 vol), Bekoev at 85% ($115,984 vol), and McMillen at 86% ($130,970 vol). The Pat vs. Petersen market is sitting at 51-49 — essentially a coin flip — which makes it the most interesting even-odds contract on the undercard for anyone looking for value beyond the main event.
New customers only. 18+, US only. $1 minimum deposit. $10 bonus unlocks after $10 in cumulative trades. Sports market availability varies by state. Full terms at kalshi.com.
Cheryle Shepstone
Cheryle is Director of Content and Strategy at DeFi Rate. She oversees the prediction market research, platform reviews, and editorial methodology behind every guide—from primary source verification through final fact-check. Before DeFi Rate, she led content and growth strategy at Catena Media, where she helped shape content and revenue strategy for regulated and financial markets. She has 20 years of experience in research and marketing strategy
