More than 4,700 athletes competed in the the Olympic-sanctioned World Games from July 16-27 in Kaohsiung, Taiwan. How did this fly under the radar? Click through our gallery for a look at some of the 31 mostly quirky sports that are not in the Olympics.

Australia's Thomas Darcy Arnel takes flight during the men's barefoot waterski jump competition July 23 at the World Games in Kaohsiung, Taiwan.

WADA had its hands and cups full at the World Games as bodybuilders, including from left, Japan's Koji Godo, South Korea's Boo Chansoon and Taiwan's Huang Chien-chin competed in the 75-kilogram event.

Slovakia's Anna Mozolany-Urbanikova demonstrates how the women's bodybuilding event had a different style than the men's event at the World Games.

Now ultimate competitors can shoot for higher goals than an intramural T-shirt. Britain's Adam Holt, left, passes as Taiwan's Chang Wei-Chiao defends during the flying disc competition, which is co-ed.

Snorkels and fins … it's like a tropical vacation with races and medals. Competitors in a men's 400-meter fin swimming heat limber up before a race at the World Games.

Portugal's Diogo Ganchinho, right, and Nuno Merino compete in a trampoline gymnastics event at the World Games.

Yes, that's the "Black Widow," Jeanette Lee of the United States, competing in the women's 9-ball match at the billiards tournament.

New Zealand's Glyn Tamara, right, lands a right to the chin of Kurita Eimi of the United States during the karate event at the World Games.

The centuries-old sport of sumo wrestling originated in Japan, but has spread to 85 countries around the world.

Female sumo wrestling is a little newer than its men's counterpart, however. Russia's Anna Alexsandrova, right, grapples with Japan's Tamami Iwai on July 18.

Women inline skaters compete in the 1,000-meter speed skating semifinal July 18.

An Olympic sport from 1900 to 1920, tug-of-war gives company picnickers -- and apparently some grandfathers on the Irish team -- something to aspire to.

A Croatian defender tries to block a shot by her Italian opponent in a women's preliminary-round beach handball match at the World Games.

If you can shoot pool, then bowling can't be left out. Finland's Krista Poellaenen won the gold medal in the women's individual competition.

England plays Belgium in a preliminary round match of korfball, which is another co-ed event.

U.S. player Chris Connole tries to get the puck between Taiwan goaltender Lin Chun-hen and Yu Kai-wen during their inline hockey game, which the U.S. won 7-0.

South Africa won the gold in the women's overall team tube rescue final in the beach life saving competition July 25.

Gold medal winner Stefan Wiesner of Germany approaches the landing target during the World Games accuracy landing event at Kaohsiung Metropolitan.

Australia's Caitlin Blaauw competes in the women's wakeboard event July 22 at the World Games.

Taiwan's Chang Shiu-chi winds up to fire the ball at the trampoline frame during her team's 65-29 victory over Great Britain in a tchoukball qualifying match July 24.

Russian gymnasts won gold in the women's acrobatic gymnastics group event at the World Games, and Russia also won the overall medals race with 47, followed by Italy's 41 and China's 29. The USA had the fourth-most medals with 26.