Kuusic nearly collided with Heinrich in the first heat, leading to a protest that resulted in the heat being re-rowed the next day; Heinrich was disqualified in the second running of the heat. Three of the heats were walkovers.
Mészáros crossed in front of Veirman in the first quarterfinal, resulting in a protest and the contest being held over. The second time, Veirman got an early lead and kept it throughout. Simonsen abandoned the competition, giving Butler a walkover in the second quarterfinal. Kuusic won the final quarterfinal by three lengths, despite having been the only quarterfinalist to have already rowed during the day, in his rematch against Heinrich.
^Ivan Schweiser of Bohemia is listed as starting in this heat in the Official Report; however, it appears he did not actually compete. Mallon, Bill; Ture Widlund (2002). The 1912 Olympic Games: Results for All Competitors in All Events, with Commentary. Jefferson, N.C.: McFarland & Company. ISBN0-7864-1047-7.
Bergvall, Erik (ed.) (1913). Adams-Ray, Edward (trans.)., ed. The Official Report of the Olympic Games of Stockholm 1912. Stockholm: Wahlström & Widstrand.