RIO DE JANEIRO -- There are a few Rio finales in the pool, while track and field gets underway. Here are Friday's highlights:
Men's 100 fly final, 10:12 p.m. ET; Women's 800 free final, 10:20 p.m. ET: Michael Phelps will swim in his final individual race of the Rio Olympics, going for his fourth straight gold medal in the 100-meter butterfly and his fifth gold of the Rio Olympics after winning the 200 IM on Thursday night. On the women's side, Katie Ledecky is pretty much a lock to win the 800 freestyle in her final swim in Rio.