Half-point calculator
See what a sportsbook is really charging when it offers to move a spread half a point in your favor.
Extra chance you'd need to win· expensive
4.1%
Chance you'd need to win now
52.4%
Chance you'd need to win after
56.5%
That's the extra chance you'd need to win for the worse price to break even. Over about 3% is usually a bad deal; moving onto a margin games often land on — 3 or 7 in football — can be worth 4–5%.
Same sportsbook, same game.