Veteran King Green will provide a litmus test for relative newcomer Mauricio Ruffy when the pair of lightweights clash in the first bout of the main card at UFC 313 this weekend at the T-Mobile Arena in Las Vegas. American King Green will be fighting for the 51st time in a long and successful professional MMA career when he steps into the octagon against highly rated and regarded Brazilian upstart Mauricio Ruffy. The Brazilian, fighting in the octagon for only the third time, is a huge favorite to continue his winning start in the UFC.
Bet on King Green vs. Mauricio Ruffy with 1xBet
MMA: UFC Lightweight
Where to Watch: ESPN+
Venue: T-Mobile Arena, Las Vegas
Date: 09.03.2025 05:00
King Green
At 38, King Green is still a mainstay of the UFC lightweight class, having debuted in the promotion over ten years ago. The Californian has logged fifty pro fights across several promotions, including KOTC, where he was a former lightweight champion, Strikeforce, and Affliction. Green steps into the octagon with a record of 2-3 in his last five fights. In his two appearances in 2024, Green lost to Paddy Pimblett in July at UFC 304, three months after he beat Jim Miller at UFC 300. Green is a rounded and experienced mixed martial artist who has the record for the most strikes landed in the UFC's 155-pound class. He has also fought the most times in the UFC division, with 25 bouts.
Tale of the Tape
- Age: 38
- Height: 5’10”
- Reach: 71”
- Weight: 155 lbs (70kg)
- Record: 32-16-2
Mauricio Ruffy
Mauricio Ruffy is on a six-fight streak as he takes on his third opponent in the UFC. The 28-year-old member of the Fighting Nerds team is a hugely talented and skilled fighter highly acclaimed by his teammates. The 2023 contender series graduate made a flying start to his UFC career last year with a first-round stoppage of Jamie Mullarkey last May before bagging a decision over James Llontop to close out the year 2-0 in November. "One Shot" has only one defeat in his professional career. If he clears the Green hurdle, it will send a clear notice to the lightweight class.
Tale of Tapes
- Age: 28
- Height: 5'11"
- Reach: 75"
- Weight: 155 lbs (70kg)
- Record: 11-1
Betting Odds
Betway lists King Green as a 4.10 underdog, with the favorite to win by KO at 1.96 odds. 1xbet has over 1.5 at 1.65 odds and the under at 2.15. Green by decision is 7.50 odds on Bet365, with Ruffy by decision at 2.87. Read more here.
Bet on King Green vs. Mauricio Ruffy with 1xBet

