So I had strycova +4.5. She loses first set 6-3. Then she gets to tiebreak in second set. If she loses tiebreak, I win the bet. Instead, she wins the tiebreak and now gets demolished in the 3rd set, so you lose even though it's a close match (which is what you hope for having +4.5 games). Oh the humanity!
Gambling is not good for you.