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The UFC returns to the octagon on Saturday with a UFC Fight Night after a thrilling UFC 328 card that had two underdogs win championship fights, and although no titles will change hands Saturday, this six-fight main card still features plenty of exciting action as options to utilize the latest Kalshi promo code CBSSPORTS to receive a $10 bonus after $10 worth of trades. The main event features two ranked featherweight competitors in Arnold Allen (No. 7) taking on Melquizael Costa (No. 12). Saturday's UFC Fight Night on Paramount+ also features seven preliminary bouts starting at 5 p.m. ET, followed by the main card at 8 p.m. ET from the UFC Meta Apex in Las Vegas. Sign up for the Kalshi promo code CBSSPORTS, trade $10 and receive your $10 bonus here:

For the full terms and conditions and how to claim the referral, read our Kalshi referral code review.

How to claim the Kalshi referral code

New users can use the Kalshi referral code to claim this offer. For those who haven't used Kalshi and want a $10 bonus, follow these steps below. Here's how to sign up.

  1. Click "CLAIM BONUS" on this page or click here.
  2. Sign up for a Kalshi account and make a deposit.
  3. Trade at least $10 in event contracts.
  4. Receive your $10 bonus regardless of the trade outcomes. The credit expires in 30 days and cannot be withdrawn.

After making the first $10 in trades with the Kalshi referral code, new users will be given a $10 bonus after $10 in trades here:

UFC Fight Night trading preview

Saturday's main event features one of the fastest-rising fighters in the featherweight division against an established competitor looking to prove himself again following a long absence. Arnold Allen, 32, missed 17 months following a shoulder injury and then battled some personal mental health issues to slow himself back into fighting shape. Allen returned at UFC 324 in January, but lost by unanimous decision to Jean Silva. Allen has lost three of his last four fights after starting his UFC career at 10-0. He's 20-4 as a professional, but he's only won one fight since the end of 2022.

Meanwhile, Melquizael Costa, 29, has won six straight bouts, and he's been fighting frequently since the start of 2025. Saturday will mark his sixth fight over the last 15 months, and Costa won each of those five previous fights. Costa isn't a competitor looking to fight for long, with six of his nine career bouts ending early. Costa is coming off a first-round TKO victory over Dan Ige on a UFC Fight Night in February, and he's looking to further prove himself in his biggest fight yet in the UFC featherweight division. 

For UFC trading, Allen is priced at $0.53 per share to win, while Costa is priced at $0.48 per share in a relatively evenly priced bout. Other fights to watch for on Saturday's UFC Fight Night include Daniel Santos ($0.59 per share) vs. Dooho Choi ($0.43) and Malcolm Wellmaker ($0.72 per share) vs. Juan Diaz ($0.29 per share). Trade UFC Fight Night at Kalshi with the latest Kalshi promo code CBSSPORTS to receive your $10 bonus after a $10 trade here:

Responsible risk management

It's a top priority for Kalshi to look out for its users. Kalshi equips every trader with accessible risk management tools that can be enabled at any given time, including risk management actions like trading break, voluntary opt-out, and a personalized funding cap. 

Prediction Markets are regulated by the Commodity Futures Trading Commission (CFTC) - an independent agency of the U.S. federal government.

Event contracts trading involves a risk of substantial loss and is not suitable for all investors. Participation in prediction markets is subject to applicable eligibility requirements. Participation may be restricted or prohibited in certain jurisdictions and participants are responsible for ensuring their participation complies with applicable laws and regulations in their jurisdiction.