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

https://record-wiki.win/index.php/Should_I_Wait_for_a_Better_Pantoja_Price_Instead_of_Betting_Van_Now%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.