Per the article linked in the original post, 4 weeks
by jbrown_9999 (2018-04-19 19:28:16)

In reply to: Help me out. From start to winner, how long is this thing? * *  posted by Jon


That doesn’t mean, though, the four-week show won’t be stressful, although perhaps not as stressful as Notre Dame’s NCAA tournament run. The first episode airs a week before final exams begin.

A Notre Dame spokesman said Ogunbowale’s dance partner, Gleb Savchenko, accompanied by a camera crew, has relocated to South Bend, Ind., for rehearsals. The show’s wardrobe department has FaceTimed Ogunbowale to discuss costumes. The pair will fly each week to Los Angeles, paid for by the television network, to perform.