Dinitz is also well known for scheduling the first season of the now-defunct XFL football league. He and a colleague from the Czech Republic, Dalibor Froncek, offered the then-brand-new XFL league their abilities to draft complicated schedules using math formulas. The XFL administration quickly agreed, which "surprised" Dinitz greatly. After some time on the computer, Dinitz and Froncek sent the XFL a draft schedule, and the new league gratefully accepted. Although the XFL folded after only one season, Dinitz was happy that "(he and Froncek) got to go to the championship game in Los Angeles".
^Dinitz, Jeffrey H.; Fronček, Dalibor (2000), "Scheduling the XFL", Proc. 31st Southeastern International Conference on Combinatorics, Graph Theory and Computing (Boca Raton, FL, 2000), Congressus Numerantium 147, pp. 5–15, MR1817983.