This is not Scott's win betting table but his table for trifecta betting.
Expected Margin between top rated and other rated horse Decimal Odds
(kgs)
0.0 1.00
0.5 .850
1.0 .723
1.5 .614
2.0 .522
2.5 .444
3.0 .377
3.5 .321
4.0 .272
4.5 .232
5.0 .197
5.5 .167
6.0 .142
6.5 .121
7.0 .103
7.5 .087
8.0 .074
8.5 .063
9.0 .054
This gives longer priced horses a higher percentage chance.