This playwright hit the right note with "Amadeus" & then horsed around with "Equus"
So what better than a horse race to exemplify the spirit of racing to the finish at all 
... it With You and Amadeus at Great Lakes Shakespeare Festival; Twelfth Night,
... [DOC] [TLE] Proof (play) - Wikipedia [PAR] Proof is a 2000 play by the American playwright David Auburn.