Career
Aksenova qualified for four swimming events at the 2008 Summer Olympics in Beijing, by clearing FINA B-standard entry times of 25.57 (50 m freestyle) and 55.51 (100 m freestyle) from the Russian Open Championships in Moscow. On the first day of the competition, Aksenova teamed up with Daria Belyakina, Yelena Sokolova, and Svetlana Karpeeva in the 4 × 100 m freestyle relay. Aksenova swam the lead-off leg and recorded a split of 56.57 seconds.
The Russian team finished heat one in sixth place and twelfth overall, with a final time of 3:42.52.
In the 100 m freestyle, Aksenova challenged seven other swimmers on the fourth heat, including two-time Olympians Jeanette Ottesen of Denmark, and Anna Gostomelsky of Israel. She placed third and twenty-fifth overall by 0.11 of a second behind Gostomelsky with a time of 55.29 seconds.
On the last day of the preliminaries, Aksenova qualified for two different events with only an hour in between. In the 50 m freestyle, Aksenova edged out five-time Olympian Martina Moravcová of Slovakia by 0.04 of a second to clinch another third spot in heat nine, with a time of 25.51 seconds.
Teaming up with Anastasia Zuyeva, Yuliya Yefimova, and Natalya Sutyagina, Aksenova swam the anchor freestyle leg and recorded a split of 54.13.