Based on the 2015 Illinois Department of Agriculture foal report, there were 173 Illinois Conceived and Foaled Thoroughbreds last year, and another 177 Illinois Foaled Thoroughbreds, meaning there were 350 foals born last year who were, in some capacity, bred in the state.
By number of foals sired, Forest Attack (Forestry – Joy Valley, by Ghadeer) was the runaway leader with 26 Illinois-breds, all both conceived and foaled in the state.
Kentucky-bred Forest Attack was campaigned by Illinois connection Scarlet Stable. Scarlet claimed him out of the barn of Todd Pletcher in his second start, his maiden win, and campaigned him for the rest of his career. He raced mainly in Kentucky and mainly in allowance company for trainer Mike Maker, but did win the Dust Commander Stakes at Turfway, a mile over the poly. That stakes win came in 2010, at age six.
Forest Attack did his best work by far over polytrack. All seven of his wins came over poly, with six at Turfway and one at Keeneland. Most of them came at sprint distances at Turfway, though he had that one-mile stakes win as well as a 1 1/16 mile allowance win at Keeneland.
Even in a circuit like Illinois, one that still has polytrack, Forest Attack seems an unlikely candidate for so much breeding support. After all, he has not produced a single winner to date. His total progeny earnings total a whole $400 — just 40% of his live-foal stud fee.