Looking at the calendar, it seems the goal is to keep as many people there as long as possble. For instace with BR: 100 on 8/13, 200 on 8/17, 50 on 8/18. It is similar for the other strokes, worse for the distance frestylers with the 800 on 8/12 and the 400 on 8/18. It seems like convenience was not there primary consideration, how unusual for FINA.
Looking at the calendar, it seems the goal is to keep as many people there as long as possble. For instace with BR: 100 on 8/13, 200 on 8/17, 50 on 8/18. It is similar for the other strokes, worse for the distance frestylers with the 800 on 8/12 and the 400 on 8/18. It seems like convenience was not there primary consideration, how unusual for FINA.