TYVM for this highly useful listing vennali. But I wonder why you didn't mention the Bitdice sportsbook and the Freebitcoin one?
The Freebitcoin sportsbook is not really big, but it has the particularity to be the only parimutuel betting sportsbook of the cryptosphere AFAIK.
Good catch on freebitco.in one. I'll add it to the list ASAP. Thanks for the suggestion. I must have missed it because they do not have "sportsbook" written on their main thread like the rest of them does. Regarding Bitdice, I am not sure if they actually have a sportsbook. They do have a tab for sportsbook, but when I click it, it redirects me back to the main website. So, to me.. it looked like a dummy link. Something they are working towards but currently not available. If that's not true, do let me know. Will be happy to look into it.
Yes it's not written sportsbooks in their current ANN but "Bets/parimutuel betting" since they don't focus on sport bets only and they want users to know they are not using a common betting system IMO.
For Bitdice I don't know why the link doesn't work but you can find their sportsbook here