Antonov with Levadia in 2012
|Full name||Ilja Antonov|
|Date of birth||5 December 1992|
|Place of birth||Tallinn, Estonia|
|Height||1.73 m (5 ft 8 in)|
|2009||Kiviõli Tamme Auto II||25||(11)|
|2009–2010||Kiviõli Tamme Auto||5||(2)|
* Senior club appearances and goals counted for the domestic league only and correct as of 1 January 2020|
‡ National team caps and goals correct as of 1 January 2020
On 8 March 2012, Antonov signed a two-year contract Meistriliiga with Levadia. He made his debut in the Meistriliiga on 10 March 2012, in a 0–0 draw against Nõmme Kalju. Antonov scored three goals in 33 games as Levadia finished the 2012 season as runners up. He won two consecutive Meistriliiga titles in 2013 and 2014.
Antonov began his youth career in 2012 with the Estonia under-21 team, making 15 appearances and scoring 2 goals.
On 1 November 2012, Antonov was called up by Tarmo Rüütli for a friendly against Oman on 8 November 2012, and made his senior international debut for Estonia in the 2–1 away victory. He scored his first goal for Estonia on 17 November 2015, in a 3–0 friendly victory over Saint Kitts and Nevis.
- As of match played 10 October 2017. Estonia score listed first, score column indicates score after each Antonov goal.
|1||17 November 2015||A. Le Coq Arena, Tallinn, Estonia||21||Saint Kitts and Nevis||1–0||3–0||Friendly|
|2||10 October 2017||A. Le Coq Arena, Tallinn, Estonia||35||Bosnia and Herzegovina||1–1||1–2||2018 FIFA World Cup qualification|
- "Levadia sõlmis lepingu nelja mängijaga, senine väravavaht jätkab" [Levadia signed contracts with four players, current goalkeeper will stay]. Postimees (in Estonian). 8 March 2012.
- "Ilja Antonov jätkab karjääri Austria esiliigas" [Ilja Antonov will continue his career in the Austrian second division] (in Estonian). ERR Sport. 29 January 2017.
- "30-facher Nationalteamspieler wechselt zum SV Horn" (in German). SV Horn. 30 January 2017. Archived from the original on 2 February 2017. Retrieved 30 January 2017.
- "Antonov lahkub Austria esiliigast välja langenud Hornist" [Antonov to leave relegated Horn] (in Estonian). ERR Sport. 24 May 2017.
- "Ilja Antonov liitus Sloveenia kõrgliigaklubiga" [Ilja Antonov joined Slovenia top flight club] (in Estonian). ERR Sport. 15 July 2017.
- "Debüüdi teinud Antonov aitas Velenje teise võiduni" [Debuted Antonov helped Velenje to their second win] (in Estonian). ERR Sport. 23 July 2017.
- "Antonov vahetas Sloveenia kõrgliiga Rumeenia oma vastu" [Antonov switched Slovenian top-flight for Romanian] (in Estonian). ERR Sport. 22 June 2018.
- "🔁Նոր տրանսֆեր:". facebook.com/ (in Armenian). FC Ararat-Armenia Facebook. 24 June 2019. Retrieved 24 June 2019.
- "Eesti koondise koosseis järgmisteks maavõistlusteks" [Estonia national team squad for the next friendly] (in Estonian). Estonian Football Association. 1 November 2012.
- "Eesti koondis alistas tänu lõpuspurdile Omaani" [Estonia team defeated Oman with a late surge] (in Estonian). Estonian Football Association. 8 November 2012.
- "Ilja Antonov" (in Estonian). Estonian Football Association.