UFC 331 has two lines worth checking: Van vs Pantoja 2 and Tsarukyan vs Ruffy....

https://tango-wiki.win/index.php/Van_Opened_%2B100_and_Pantoja_-120:_Should_I_Have_Bet_the_Opener%3F

UFC 331 has two lines worth checking: Van vs Pantoja 2 and Tsarukyan vs Ruffy. One book may have Van -120, another -135. We compare prices across the card, including Tsarukyan at -325 and Ruffy at +280, so you can see where the number still makes sense.