Sergey Avdeyev was hired as the Old Dominion men's tennis assistant coach in August of 2016.
In 2019, Avdeyev was named the ITA Atlantic Regional Assistant Coach of the Year. Avdeyev helped ODU to a No. 66 national team ranking.
Over the past three seasons, Avdeyev has helped lead ODU to national team rankings and one of the top teams within the C-USA.
In 2018, the Monarchs won the Conference USA Tournament and punched their ticket to the NCAA Tournament. In 2019, Aziz Kijametovic won the Regional Singles crown. Avdeyev also helped Kijametovic to a national singles ranking, as well as a doubles ranking with teammate Francois Musitelli.
Avdeyev came to ODU from Oklahoma, where he served as a volunteer assistant coach during the 2015-16 season. The Sooners went 20-11 in 2015-16, but ended the season with a spectacular run to the NCAA Championship match. OU recorded upsets over No. 3 UCLA, No. 6 Wake Forest and No. 7 Georgia en route to the title match, before falling to top-seeded Virginia.
At Oklahoma, Avdeyev coached numerous nationally-ranked players and guided several Sooners at the Fall ITA Indoor National Championships and other individual fall tournaments.
A 2009 graduate of Oklahoma, Avdeyev was a top 50 player for the Sooners in both singles and doubles. He played in the No. 1 singles slot for OU and served as team captain during his senior year in 2008-09.
Following his collegiate career, Avdeyev also competed on the professional circuit for two years. A native of Kazakhstan, Avdeyev was ranked in the top 10 in his country and was also a member of the junior Davis Cup team for Kazakhstan. On the ATP, Avdeyev recorded several victories over top 200 world-ranked players.