The 45 minutes on, 15 minutes off aspect reminded me of the increasingly popular modern "backyard ultra marathon", (run the same 4.1667 mile course every hour u

The 45 minutes on, 15 minutes off aspect reminded me of the increasingly popular modern "backyard ultra marathon", (run the same 4.1667 mile course every hour until one person is left). Obviously those aren't rigged or exploitative, and winning doesn't get you anything much except bragging rights amongst a particular set of people.