Athletics: replace mixed 4x100m with women’s 50km walk, or a mixed 10km road relay, or a mixed shuttle relay, or a mixed 4x800m relay. Really anything but a redundant 4x400m relay.
Swimming: replace the mixed 4x100m medley with the mixed open water relay. Or if we want to be really creative a mixed 4x200m individual medley relay. Lets just not give 100m freestylers a *fourth* Olympic gold medal chance.
Climbing: replace combined event with speed, lead and bouldering events. I know that’s against the rules but I don’t care.
Judo: replace the mixed team event with a men’s and women’s team event.
Sailing: simplify the program - men’s and women’s sailboard, one person dinghy, two person dinghy, multihull and skiff.