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Finland Jesse Vainikka, known as JerAx, is a two-time The International Champion in Dota 2, recognized for his strategic support play and recent transition into mental performance coaching.
SteelSeries and OG, including JerAx, officially partnered after OG's win at The International 2018. The partnership continued SteelSeries' engagement in esports.
JerAx unveiled his own merchandise website in January 2018 to sell branded items like t-shirts and hoodies and interact with fans. The website (www.jerax.gg) is currently inactive as of September 2025.
JerAx offers his services as a mental performance coach on Metafy, charging per hour for sessions focused on burnout, self-esteem, and mental obstacles in gaming. He applies techniques like motivational interviewing, non-violent communication, and cognitive behavioural therapy.
JerAx auctioned his old gaming chair, which featured the Team Liquid logo, to benefit the charity Save the Children. The auction, in collaboration with the Finnish talk show Valavuori Live, raised €5,300.
JerAx partnered with the Finnish talk show Valavuori Live to auction his gaming chair for charity, raising funds for Save the Children.
UNEVN, a company founded in Espoo, Finland, by Aleksi and Santeri Rinkinen, also features former professional Dota 2 champion Jesse 'JerAx' Vainikka as a founder. The company is involved in new gaming partnerships within the luxury hospitality industry.
ENCE, an esports organization, has partnered with Cavea for data insights. JerAx is mentioned in relation to ENCE as a prominent Dota 2 player from the Finnish scene.
Jesse Vainikka, born on May 7, 1992, in Helsinki, Finland, began his esports career in Heroes of Newerth before transitioning to Dota 2. He completed compulsory military service in the Finnish navy prior to dedicating himself fully to professional gaming. Vainikka quickly made a name for himself as a support player, initially joining teams such as Rat in the dark and QPAD Red Pandas in 2013. His early career also included a role as team captain and drafter for 4 Anchors + Sea Captain in 2014, and subsequent stints with Team Tinker and MVP HOT6ix in 2015, where he played in The International 2015.
Vainikka’s career progressed significantly when he joined Team Liquid in 2015, achieving second-place finishes in the Frankfurt and Manila Majors and winning EPICENTER in 2016. In the same year, he moved to OG, where he achieved major success, winning the Boston Major. The peak of his playing career came with OG, securing back-to-back victories at The International in 2018 and 2019. These achievements solidified his status as one of Dota 2’s most decorated players, accumulating approximately $6.48 million in prize money.
After retiring from active competition in January 2020 due to a stated lack of passion, Vainikka briefly returned to the competitive scene in 2021 as a player for Evil Geniuses. In 2022, he transitioned into a coaching role for Team Liquid, contributing to their third-place finish at The International 2022. He retired from professional Dota 2 again in December 2022, citing a diminished enjoyment of the game. Vainikka has since focused on mental performance coaching, leveraging his competitive insights to assist other esports professionals.
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