Jack Daniels Training Plan customer Rowan Jones of Waverly, KY ran the Disney Half Marathon and Disney Marathon on back to back days last weekend. On Saturday Rowan finished the half in 1:28:00, a new PR by 18 minutes! The following day he came back and ran the marathon in 3:12:22, a 37 minute improvement from his previous marathon best. So, the question is, how fast could he have run the marathon in without having run the half the day before?