Ok, so what you're implying here is that if every leg got up and you had $1k riding on Collingwood to win between 1-19 points, you wouldn't place a few bets so you're garanteed a $1k payout no matter what? Interesting
Don't include collingwood in the first place and you will already have won money before that game even starts. If you don't want collingwood 1-19 as the last leg don't put it in. If you do want it in why hedge?