Ties would have to hit 1/3 of the time to equal the $ playing the money line and they are no where near 1/3. Last time I checked they were in the 16-17% range which is less than 1/5 of the time. At 20% and a 50 cent difference in the line playing the money line would increase your winnings by 1 unit on every 5 games you bet, so over 100 games that would be an additional 20 units.