He later entered the fourth season of Tough Enough, a televised competition which awarded the winner a WWE contract, and became the first runner-up.
Mizanin trained and wrestled in independent/developmental territories Ultimate Pro Wrestling (UPW), Deep South Wrestling (DSW), and Ohio Valley Wrestling (OVW) prior to appearing in WWE.
He then attended Miami University, where he was a member of the Theta Chi Fraternity, and studied business at the Richard T. Mizanin dropped out of college, where he was pursuing a degree in business, in order to appear on the tenth season of MTV's reality television program, The Real World, in 2001.He went on to appear in multiple seasons of its spin-off series, Real World/Road Rules Challenge, along with contestants from both Road Rules and The Real World, including Battle of the Seasons, The Gauntlet, The Inferno, Battle of the Sexes 2, and The Inferno 2.On March 31, Miz appeared in the first ever Slime Wrestling World Championship at the Nickelodeon Kids' Choice Awards, losing to the Big Show which resulted in him being thrown into a tub of slime.On October 1, Miz appeared on Disney XD show Pair of Kings as a guest star.It marked the first time The Miz appeared on the series since becoming a main event WWE superstar.
It was during an episode of The Real World that Mizanin first displayed an alter ego known as "The Miz".
Except for Battle of the Sexes 2, Mizanin made it to the end of all the Challenges on which he competed and won both Battle of the Seasons and The Inferno 2.
After a seven year long absence from The Real World/Road Rules Challenge, Mizanin returned to the reality show on April 4, 2012 as the host of The Battle of the Exes season finale Reunion special.
She is currently dating Mike "The Miz" Mizanin but is there relationship as good as she thought it was? Excited, Haylie and Haley quickly accept and are put in a storyline with The Awesome One's, Mike ' The Miz' Mizanin and Alex Riley. Maryse is curently dating her long time boyfriend Mike (The Miz) for 2 years.
Elizabeth has been in the WWE with her brother Phillip Brooks (CM Punk) for a couple years. Haylie and Haley are fresh out of wrestling school and are quickly snatched up by Vince Mc Mahon and The WWE who are in need of female wrestlers.
That year, he was ranked number one on Pro Wrestling Illustrated's annual PWI 500 list.