Kseniya Aleksandrovna Aksyonova (née Ustalova) (Russian: Ксения Александровна Аксенова; born 14 January 1988 in Sverdlovsk) is a Russian track and field sprinter who specialises in the 400 metres.
She has won gold medals in the 4 × 400 metres relay with Russia in European competition in the junior (2007), under-23 (2009) and senior (2010) levels. She won the silver medal in the individual 400 m at the 2010 European Athletics Championships with a personal best run of 49.92 seconds. She won the relay gold at the 2011 Summer Universiade and won her first global level medal with a relay bronze at the 2012 IAAF World Indoor Championships.
Ustalova began 2013 with an indoor best 51.31 seconds to win the Russian indoor title.[1]
International competitions
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
| 2007 | European Junior Championships | Hengelo, Netherlands | 2nd | 400 m | 52.92 |
| 1st | 4 × 400 m relay | 3:33.95 | |||
| 2009 | European U23 Championships | Kaunas, Lithuania | 1st | 400 m | 51.74 |
| 1st | 4 × 400 m relay | 3:27.59 | |||
| 2010 | European Team Championships | Bergen, Norway | 1st | 400 m | 51.79 |
| 1st | 4 × 400 m relay | 3:23.76 | |||
| European Championships | Barcelona, Spain | 2nd | 400 m | 49.92 | |
| 1st | 4 × 400 m relay | 3:26.89 | |||
| 2011 | Universiade | Shenzhen, China | 1st | 4 × 400 m relay | 3:27.16 |
| 2012 | World Indoor Championships | Istanbul, Turkey | DSQ (3rd) | 4 × 400 m relay | 3:29.55 |
| 2013 | European Indoor Championships | Gothenburg, Sweden | 5th (h) | 400 m | 52.23[2] |
| Universiade | Kazan, Russia | 1st | 400 m | 50.60 | |
| 1st | 4 × 400 m relay | 3:26.61 | |||
| 2015 | World Championships | Beijing, China | 4th | 4 × 400 m relay | 3:24.84 |
Competing as  Authorised Neutral Athlete | |||||
| 2018 | European Championships | Berlin, Germany | 27th (h) | 400 m | 53.37 |
| 2019 | World Championships | Doha, Qatar | 26th (h) | 400 m | 51.99 |
