Scav: Here's some recent stats from dirt, poly and turf from my program:
Top SP by Style:
Dirt
Style Horses SumOfPayoff ROI
E 19985 36655.40 91.71%
EP 13539 24333.80 89.87%
NA 5476 10830.20 98.89%
P 4677 8399.70 89.80%
PS 1438 2454.60 85.35%
S 368 647.60 87.99%
Poly
Style Horses SumOfPayoff ROI
E 1036 1959.80 94.58%
EP 786 1293.80 82.30%
NA 365 843.60 115.56%
P 283 380.40 67.21%
PS 80 231.70 144.81%
S 18 20.40 56.67%
Turf
Style Horses SumOfPayoff ROI
E 2230 3797.60 85.15%
EP 1790 2957.50 82.61%
NA 603 1039.20 86.17%
P 782 1373.50 87.82%
PS 235 467.40 99.45%
S 56 230.20 205.54%