So far these results appear similar to what one might expect with selecting any numbers, but notice one of these did better than the other:
13 vs. 24 @ 10,000 = 19 wins vs. 9 losses
24 vs. 13 @ 10,000 = 7 wins vs. 23 losses
13 vs. 24 @ 10,000 = 19 wins vs. 9 losses
24 vs. 13 @ 10,000 = 7 wins vs. 23 losses