Eight of the nineteen UCI WorldTeams, eight UCI ProTeams, three UCI Continental teams, and two national teams made up the twenty-one teams that participated in the race. With five riders, Hagens Berman Axeon was the only team to not enter a full squad of six riders. Of the 125 riders who started the race, 104 finished.[2]
On stage 2, Nacer Bouhanni, who was second in the points classification, wore the green jersey, because first placed Álvaro Hodeg wore the yellow jersey as the leader of the general classification.
On stage 3, Álvaro Hodeg, who was second in the points classification, wore the green jersey, because first placed Georg Zimmermann wore the yellow jersey as the leader of the general classification.
Final classification standings
Legend
Denotes the winner of the general classification
Denotes the winner of the young rider classification
Denotes the winner of the points classification
Denotes the winner of the combativity award
Denotes the winner of the mountains classification
^"Teams and Riders - Tour de l'Ain 2021". Tour de l'Ain. Alpes Vélo. Retrieved 31 July 2021.
^"The Race - Tour de l'Ain 2021". Tour de l'Ain. Alpes Vélo. Retrieved 31 July 2021.
^"Stage 1 - Tour de l'Ain 2021". Tour de l'Ain. Alpes Vélo. Retrieved 31 July 2021.
^ a b"Tour de l'Ain: Hodeg wins stage 1". CyclingNews. 29 July 2021. Retrieved 31 July 2021.
^ a b"ETAPE 1 29 JUILLET 2021 PARC DES OISEAUX - BOURG-EN-BRESSE" (PDF). Tour de l'Ain. Votrecourse. 29 July 2021. Archived from the original (PDF) on 31 July 2021. Retrieved 31 July 2021.
^"Stage 2 - Tour de l'Ain 2021". Tour de l'Ain. Alpes Vélo. Retrieved 31 July 2021.
^ a b"Tour de l'Ain: Georg Zimmermann wins stage 2". CyclingNews. 30 July 2021. Retrieved 31 July 2021.
^ a b"ETAPE 2 29 JUILLET 2021 LAGNIEU - SAINT-VULBAS" (PDF). Tour de l'Ain. Votrecourse. 30 July 2021. Archived from the original (PDF) on 31 July 2021. Retrieved 31 July 2021.
^"Stage 3 - Tour de l'Ain 2021". Tour de l'Ain. Alpes Vélo. Retrieved 31 July 2021.
^ a b c d e f gBenson, Daniel (31 July 2021). "Tour de l'Ain: Storer wins stage 3 and overall title". CyclingNews. Retrieved 31 July 2021.
^ a b c d e f g"ETAPE 3 30 JUILLET 2021 IZERNORE - LÉLEX MONTS-JURA" (PDF). Tour de l'Ain. Votrecourse. 31 July 2021. Archived from the original (PDF) on 31 August 2021. Retrieved 31 July 2021.