Career
After graduating from Kagoshima Commercial High School in 2005, Iwashita signed for South-Pulse where he has played since. In 2007 he scored his first goal for South-Pulse in a 2-0 away victory at Albirex Niigata. He received a his first call-up for the senior national team in 2009 by Takeshi Okada but has yet to play a game for Japan.