Additional question to upper one - is it possible to void, modify results, unsettle bets manually? Jurisdiction rules (Regulation organizations) will be applicable (which one?) to bookie or you will be some type of outlaw?
Actually, good question. At the moment, only one or two crypto-accepting bookies have good documentation on some of the unconventional rulings for sports bets. In general, most bets will be easily settled, but when there are contentious events (was the goal scored in 90th or 91st minute?), how long must the boxing match round last to be considered a full round (remember the controversy with Mayweather/Connor in August on a lot of bets made lasting 10 rounds)?
I'm guessing any blockchain-based sportsbook (I don't know Peerplay very well unfortunatel) could benefit from smart contracts that make some rules very clear, arbitrated by... some parties?