farout, strikerate (winning bets vs losing bets) means nothing in terms of profiting. You sould like you're trying to win (profit), so you might wanna dump the multis idea, and just bet them as singles.

10-2 ain't bad so far, seems like your average odds are about $1.50 (so you'd need a 66% strikerate to breakeven, or >66% to profit).