Early career Xu Yan began
sanshou training at an early age and rose to prominence by winning provincial titles in his native
Shandong three years consecutively; he won the Shandong Province Sanshou Championships at -65 kg/143 lb in 2003 and 2004 and at -70 kg/154 lb in 2005. Staying at -70 kg/154 lb, he then won the Chinese National Sanshou club Championships in 2005 and 2006, and affirmed himself as the country's top middleweight by winning a tournament held by Heroes of Legends in January 2007. Fighting for the first time internationally, Xu was part of a team of sanshou fighters that challenged
shoot boxing at
Shoot Boxing 2007 Mu-So 2nd in
Tokyo,
Japan, on May 25, 2007. He lost to
Kenichi Ogata via a
knee to the body
knockout in the third round, the first loss of his professional career. In September 2007, he won the IFB International Sanda Tournament in
Guangzhou,
China, defeating
Muay Thai stylist Akarn Sannaha by decision in the final. A month later on October 13, 2007, Xu beat Joey Pagliuso by
unanimous decision in
Shenzhen, China, using his height and reach advantage to
outpoint the American. Xu won a second Legend of Heroes tournament in December 2008 before losing a unanimous decision to
Vuyisile Colossa in the same promotion in
Beijing, China on January 18, 2009. Making the foray into
Oriental rules kickboxing, he debuted in
K-1 on March 20, 2009, at
K-1 Award & MAX Korea 2009 in
Seoul,
South Korea where he lost to Kim Se-Ki by
technical knockout after being dropped twice in the second round. On May 31, 2009, he competed in the four man middleweight tournament at
The Challenger event held at
The Venetian Macao in
Macau. After beating
Keiji Ozaki by unanimous decision in the semi-finals, he lost to Heung Pak-Wing by first-round knockout in the final.
SportAccord and King's Cup tournament Xu Yan then rebounded with a
split decision win over
Baxter Humby in
Las Vegas, Nevada,
United States on August 30, 2009, before returning to K-1 to fight
Yuichiro Nagashima in a non-tournament bout at the
K-1 World MAX 2009 World Championship Tournament Final in Tokyo on October 26, 2009. Although a heavy underdog, he scored an upset win by knocking Nagashima down with a left
hook inside the opening thirty seconds of the fight before finishing him with the same technique soon after. He was then set to face
Lim Chi-Bin at
The Khan 2 in Seoul on November 27, 2009, but Lim was replaced by
Lee Su-Hwan. He lost to Lee by TKO in round two. After beginning the year with wins over Ben Barwise and Lewis Corris, Xu was given the toughest test of his career in the form of
Buakaw Por. Pramuk in a
Wu Lin Feng promoted event at
Henan Provincial Stadium in
Zhengzhou, China on June 19, 2010. Xu was outfought and lost on points. He also received a controversial count by the referee in round two after going down from a
low blow. He fought and beat another Thai in his next outing,
outpointing
Malaipet Sasiprapa at
Legends of Heroes: Muaythai vs. Kung Fu at the
Arena of Stars in
Pahang,
Malaysia on October 9, 2010. In his second appearance on US soil, Xu was scheduled to fight Raul Rodriguez at
Wu Lin Feng: Battle of Las Vegas II on November 13, 2010, in Las Vegas but a change occurred as Rodriguez was replaced by
Shane Oblonsky. He lost via unanimous decision. Three weeks later, Xu Yan was drafted into the 2010 edition of the
King's Cup Muay Thai tournament as one of three replacement fighters. Going down in
Bangkok,
Thailand on December 5, 2010, Xu was eliminated at the quarter-finals when he lost to Alexander Vogel on points.
Fight Code tournaments On March 12, 2011, Xu faced
Sudsakorn Sor Klinmee on the
Oktagon 2011 card in
Milan,
Italy. Round one was close but Sudsakorn asserted his dominance early on with a
throw and only got better in the second. Xu faded in round three and received a somewhat controversial
standing eight count before losing the decision. He put a halt to his three-fight losing streak five months later when he knocked out Adil Abbas at a Legends of Heroes event in
Nanchang, China before returning to Europe to compete for the Fight Code promotion and entered into the organization's 2011 Dragons Series -70 kg/154 lb tournament at the quarter-finals stage when he took the place of
Dzhabar Askerov who withdrew due to scheduling conflicts. He lost to
Abdallah Mabel via split decision on October 15, 2011, in
Marseille,
France but it later emerged that the French sporting commission had not allowed Fight Code's complete rule set just hours before the event and so a rematch was set for
Geneva,
Switzerland on November 26, 2011. Three weeks before the rematch, Xu suffered a first-round KO loss to
Lamsongkram Chuwattana in
Changsha, China. Against Mabel, Xu Yan rallied back in round three but the Frenchman dominated the first two and took the unanimous judges' decision.
K-1 tournaments He stopped another three-fight skid with a win over
Yuya Yamamoto at
Krush.16 in Tokyo on February 17, 2012. Xu got off to a good start, landing against the defensively flawed Yamamoto and took over in the second by scoring three knockdowns and earning him the TKO victory. Xu Yan outpointed Quinton Arendse on a Legends of Heroes show in his native country on April 21, 2012 before making a return to K-1 after an almost three-year absence to compete in the K-1 World MAX 2012 World Championship Tournament. At the
K-1 World MAX 2012 World Championship Tournament Final 16 in
Madrid,
Spain on May 27, 2012, he fought
Yasuhiro Kido in the tournament's opening stage. The fight got off to a rather lackluster start and had the crowd booing at one point in the first round before Xu fell victim to Kido's patented
spinning backfist late in the third. After rebounding with a high kick knockout of a Japanese opponent in Legends of Heroes in
Kunshan, China two months later, Xu Yan was soundly beaten to a unanimous decision in the tournament reserve match at the
K-1 World MAX 2012 World Championship Tournament Final in
Athens,
Greece on December 15, 2012.
WMC and Hero Legends titles Xu Yan scored a first-round knockout over Ton Kunchat at
Combat Renaissance in Hong Kong on September 17, 2013. He defeated
Mike Zambidis by unanimous decision, dropping him in rounds one and two, at
Hero Legends in Jinan, China on December 3, 2014.
Hero Legends title reign After winning the Hero Legends title, Yan fought with the organization five more times in non-title bouts. In May 2014, he fought
Yoshihiro Sato to a draw. A year later, he knocked out Kraisorn Singmamor, and a month after this fight, he scored a TKO win over Yodpichai SorSaksri. In July 2015, he fought twice in the span of two weeks, he won a unanimous decision against Munguntsooj Nandin-Erdene and defeated Ryota Kojima by first round TKO. A month later, he stepped in on short notice to replace
Yodsanklai Fairtex against
Giorgio Petrosyan, with Hero Legends making the fight a title bout. Petrosyan won the fight by knockout, after dropping Yan by a knee in the third round. ==Championships and awards==