In order to compete in the decathlon, an athlete must train for ten track and field events.    From LearnThat.org. 

Bryan Clay celebrates becoming the second American gold medalist in decathlon.    From Wordnik.com.  [USA's Bryan Clay breaks through for decathlon gold] Reference

The decathlon is unique.    From Wordnik.com.  [Hard-working Gunnar Nixon has decathlon record in sights] Reference

I doubt McConaughey was training for a 'decathlon'.    From Wordnik.com.  [Hard Times: Valuating the Cultural Currency of Cycling] Reference

Perhaps a better analogy is the Olympic decathlon.    From Wordnik.com.  [Gamers Rewarded With Another Life] Reference

O'Brien, 34, won the decathlon at the '96 Olympics.    From Wordnik.com.  [The View From The Starting Line] Reference

KING: Gold medal in the decathlon, the Olympics.    From Wordnik.com.  [CNN Transcript - Larry King Live: What's the Best Way to Combat Arthritis? - August 29, 2000] Reference

COLLINS: Excellent guess, but no, it's the decathlon.    From Wordnik.com.  [CNN Transcript Aug 19, 2004] Reference

He had four to five hours of fuel in that super decathlon.    From Wordnik.com.  [CNN Transcript Sep 4, 2007] Reference

(Mr. O'Brien later won the decathlon gold at the 1996 Games.).    From Wordnik.com.  [Upsets of Olympic Proportions] Reference

More coverage of the decathlon coming up in just minutes here.    From Wordnik.com.  [David Quigg: Underdog Wins Gold at 2012 Sarah-lympics] Reference

Getty Images Bryan Clay celebrates after winning the decathlon.    From Wordnik.com.  [Bryan Clay Takes Decathlon Gold] Reference

When the U.S. Olympic decathlon team gathered, Dan led the cheers.    From Wordnik.com.  [Hello Sweetheart, Get Me Reebok] Reference

To spectators, the decathlon looks like the supreme physical test.    From Wordnik.com.  [For God And For Reebok] Reference

The entire process was a logistical decathlon for the production team.    From Wordnik.com.  ['Hard Knocks' Hit a Homer] Reference

And the decathlon needs slogans because it is not a great spectator sport.    From Wordnik.com.  [For God And For Reebok] Reference

KING: The Solar decathlon is based on the athletic decathlon, same contest.    From Wordnik.com.  [CNN Transcript Oct 10, 2009] Reference

He took -- took off, actually, noon yesterday, in a like a (ph) super decathlon.    From Wordnik.com.  [CNN Transcript Sep 4, 2007] Reference

In the decathlon, American Bryan Clay won the silver with a toss of the javelin.    From Wordnik.com.  [CNN Transcript Aug 25, 2004] Reference

"This is the gold-medal decathlon match of the parenting Olympics," I told myself.    From Wordnik.com.  [The Ultimate Parenting Test:] Reference

Like they asked if he liked the decathlon, he said no, he'd prefer regular coffee.    From Wordnik.com.  [CNN Transcript Aug 10, 2008] Reference

"I didn't know I was doing it, but I guess I developed some good decathlon skills.".    From Wordnik.com.  [For God And For Reebok] Reference

King Gustav V of Sweden, to Jim Thorpe, winner of the first Olympic decathlon in 1912.    From Wordnik.com.  [For God And For Reebok] Reference

"The Games define your career," says Bruce Jenner, the 1976 U.S. decathlon gold medalist.    From Wordnik.com.  [Upsets of Olympic Proportions] Reference

If drama emerges in the decathlon, it usually comes in the last event, the 1,500-meter run.    From Wordnik.com.  [For God And For Reebok] Reference

The nights leading up to a big decathlon are the only time in my life that I don't sleep well.    From Wordnik.com.  [The View From The Starting Line] Reference

He bounced back again, winning the decathlon championship at the Pan American Games that summer.    From Wordnik.com.  [Profiles in Later Life] Reference

In 1969, he participated in 10 amateur events and broke world records in the decathlon and pentathlon.    From Wordnik.com.  [Profiles in Later Life] Reference

"I truly believe that the guy who wins the Olympic decathlon is the best-rounded athlete in the world.".    From Wordnik.com.  [For God And For Reebok] Reference

Reuters Roman Sebrle of the Czech Republic competes in the discus portion of the men's decathlon Friday.    From Wordnik.com.  [Olympics Photos of the Day: Aug. 22, 2008] Reference

That campaign was built around decathlon champion Dan O'Brien, who didn't even qualify for the U.S. team.    From Wordnik.com.  [Soles Of Gold] Reference

Life magazine named her and decathlon gold medalist Bob Mathias the top two U.S. athletes at the 1948 Games.    From Wordnik.com.  [Olympic diver Victoria Manalo Draves dies at 85] Reference

Associated Press Bryan Clay of the U.S. attempts a clearance during the pole-vault portion of the decathlon.    From Wordnik.com.  [Olympics Photos of the Day: Aug. 22, 2008] Reference

There was a pentathlon -- discus throw, javelin throw, long jump, footrace, and wrestling -- but no decathlon.    From Wordnik.com.  [The Ancient Olympics (1996)] Reference

Who knew from Daley Thompson, Britain's world record holder and two-time Olympic gold medalist in the decathlon?.    From Wordnik.com.  [For God And For Reebok] Reference