Rowing, an even more detailed schedule (unfortunately, it's in German only)...
http://rio.sportschau.de/rio2016/zeitplan/index.html#s=RO&d=20160803,20160804,20160805,20160806,20160807,20160808,20160809,20160810,20160811,20160812,20160813,20160814,20160815,20160816,20160817,20160818,20160819,20160820,20160821
Fencing (since it's in Italian, here's a short guide: about the competition's rounds: Qualificazioni 64 or 32 = Round of last 64 or last 32, Ottavi = Round of last 16, Quarti = Quarterfinals, Semifinali = Semifinals, Finale 3. posto = Bronze Medal bout, Finale 1. posto = Gold Medal bout; about the various events: Spada = Epee, Fioretto = Foil, Sciabola = Sabre, Individuale = Individual event, a Squadre = Team event, M = Men's, D = Women's)
http://www.rio2016.coni.it/it/home/rio-2016/calendario-gare/dettagliocalendario.html?disciplina=17
Boxing (for indications about the competition's rounds and the gender of the athletes you can always look at the Fencing guide, just to be added: Sedicesimi = Round of last 32)
http://www.rio2016.coni.it/it/home/rio-2016/calendario-gare/dettagliocalendario.html?disciplina=16