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

https://trentonsbestthoughtss.theburnward.com/is-tsarukyan-325-a-pass-even-if-i-think-he-wins

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.