2006-07: Korostin enjoyed success in his U18 international ventures. Most notably, the U18 World Junior Championships where he registered five goals (tied for most on the team) and six points in seven games; an effort that yielded a gold medal. He also participated in three other tournaments, notching 10 points in 12 combined games. The Stars selected him in the 3rd round (64th overall) in the 2007 draft.
2007-08: Korostin made the jump to North America after starting the year with Dynamo Moscow (RSL). He joined the Texas Tornado (NAHL) where he registered eight goals and 18 points in just 19 games. The London Knights (OHL) selected him 37th overall in the CHL Import Draft in 2008.
2008-09: Korostin split his final junior season between the London Knights(OHL) and the Peterborough Petes(OHL). He scored a combined 13 goals and 23 assists. He also represented Russia at the U20 level, scoring 1 goal and 1 assist in 7 games.
2009-10: Korostin turned pro, appearing in 4 games with the Idaho Steelheads(ECHL) and 63 games with the Texas Stars(AHL). He scored a combined 17 goals and 14 games in his first pro year.
2010-11: Korostin, who was scratched for much of the 2010 Calder Cup Playoffs, was loaned to Dynamo Balashikha of the VHL (second-tier Russian league). In 28 games, he potted nine goals and 16 points.
2011-12: The Dallas Stars voided Korostin's contract in July 2011 – allowing them to free up contract space under the 50-player limit. The 22-year-old forward skated for three teams in Russia's second league – the VHL – seeing his most extensive action with VMF St. Petersburg. In 24 games in St. Petersburg he scored 2 goals with 6 assists and was minus-2 with 10 penalty minutes. He had no points and 8 penalty minutes in five playoff games for VMF St. Petersburg.
Korostin has tremendous acceleration and agility and his foot speed is tremendous. He can dance his way around any would-be defender at top speed. He has a quick, accurate shot and can score from virtually anywhere in the offensive zone. Shows aptness for getting open in “safe” scoring areas. Has intriguing vision as a playmaker, but it’s not always there. Has the tendency to handle the puck too much and, by all accounts, is not a team player. His work ethic is usually strong, he is surprisingly effective on the forecheck in terms of puck retrieval. In terms of positioning and anticipation, Korostin has potential to get better but is passable at this point. Tends to shy away from high traffic areas, physicality is far from a strong point for him. Size is not ideal.
Potential: A flashy offensive second line winger, like a less polished Jiri Hudler.
May be given a shot to try his hand at North American hockey once more, but it wouldn’t surprise many if he was a European lifer.