dPoll got the Rose/Andrade fight wrong, I got Volk/Holloway wrong, the odds were always on point.
Links to the respective polls:
Odds from William Hill via https://www.bestfightodds.com/, 12.07.2020, 01:00 UTC
How do odds work: (-) indicates the favourite, (+) indicates the underdog
Usman - 250 means you pay 250 in order to win 100
Masvidal + 190 means you pay 100 to win 190
List of UFC events: Wikipedia