I wouldn't worry about it so much.
I had a big winning treble on Boxing Day myself but managed to make 8 consecutive losing bets on NBA, and lost everything I won. Punters get greedy and usually lose what they win.
Besides, there were plenty of upsets today. Man City-Burnley 2-2 (and Burnley came back from 2-0, too, ruining most live bets). So I guess it evened out pretty quickly. I'm expecting some strong numbers tomorrow.
It's not the worst day ever, there has been a much worse one a year ago or so, when all favorites won across all leagues, causing an unprecedented beating of the bookies.
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