After returning to Russia early in the 2009–10 season, Filatov had the opportunity to compete in a third World Junior Championship at the 2010 tournament held in Saskatchewan, Canada. As in 2009, he served as Russia's team captain. During preliminary round play, Filatov was named best player for Russia in their game against Finland. The tournament was a disappointment for the Russians after they lost to Switzerland in the quarterfinals. Prior to the fifth place game against the Czech Republic, Filatov was stripped of his captaincy and replaced by teammate Kirill Petrov after criticizing the team personnel during a media scrum. After participating in three World Junior Championships, Filatov is tied with Evgeny Kuznetsov as Russia's all-time leading scorer at the event—both forwards finished their junior careers with 26 points.