Career
He has fought for organizations such as Fighting Network RINGS,, Pancrase, Hero"s and Pride Football Club. Fighting Network RINGS (1998-2001) Ueyama began his Mixed martial arts career on 21 September 1998 at Rings - Fighting Integration VI. He lost to Yasuhito Namekawa by decision. Ueyama lost to Namekawa again by decision on 21 February 1999. He beat Dennis Kefalinos by knee bar in round 1.
He was disqualified for eye gouging in his next fight against Lee Hasdell on 23 April 1999 in Japan.
After his fight with Hasdell, he went unbeaten for over a year and a half with wins over Willie Peeters, Yasuhito Namekawa and Tim Thomas, with draws against Lloyd Berg, Dave Menne and Kosei Kubota. Ueyama eventually lost on 20 March 2001 against Sokun Koh at Rings - Battle Genesis Volume
7. & Pancrase Ueyama drew with Kosei Kubota for a second time on 18 August 2001 at - 2nd Impact.
He lost a decision against Kiuma Kunioku at Pancrase - 2001 Anniversary Show a month later. He returned to in December of that year, defeating LaVerne Clark by TKO. Then at Pancrase - Spirit 2 he lost to Kazuo Misaki by decision.
On 9 June 2002, Ueyama entered the Middleweight tournament. He then beat Gilson Ferreira at - 6th Impact in September to bring his record to 9-6-4.
He lost a decision in March 2003 to Hayato Sakurai.
Pride Bushido & return Ueyama made his Pride Football Club debut on 15 February 2004 against Sean Sherk, Ueyama lost by decision. In his second fight for Pride he lost to Ikuhisa Minowa by split decision. On 18 December 2004, Ueyama returned to and lost to Ryuta Sakurai by TKO. Hero"s He made his Hero"s debut in 2006 on Hero"s 5 with a decision loss to Rani Yahya.
This match was the opening round of Hero"s 2006 Lightweight Grand Prix.
Ueyama was submitted by Vitor Ribeiro on 12 March 2007 at Hero"s 8. (2009-2010) Ueyama returned to the organisation once again in 2009 with a decision victory over Kosei Kubota.
Later in 2009 he lost decision against Hidehiko Hasegawa at - 44 Impact. Ueyama drew his last fight to date against Hidetaka Monma on 17 April 2010.
Middleweight Championship (1 Time, First).