Johnny Chaillot and Greg Louganis
06/17/2013 at 04:00 PM EDT
Olympic diving champion
Greg Louganis is about to take the plunge – the marrying kind, that is. He and his partner, paralegal Johnny Chaillot, will walk down the aisle this fall, the diver tells PEOPLE exclusively.
"I finally met my soul mate – the more I fall in love with Johnny, the more I fall in love with myself. This is what the universe had in store for both of us," Louganis, 53, says.
Louganis is widely considered the greatest diver in history. He is the only male to sweep both the 3m and 10m diving events in consecutive Olympic Games ('84 and '88). During his career he earned a total of five Olympic medals, five World Championship titles and 47 national titles.
He is currently a mentor for the U.S. Olympic diving team, a judge for the Red Bull Cliff Diving Tour, a dog agility competitor and a motivational speaker. He is also the subject of a feature-length documentary film
, Back on Board
. Earlier this year, Louganis starred as a coach
on ABC's reality diving competition, Splash
Chaillot, 52, currently works for the powerhouse Los Angeles-based law firm Loeb & Loeb, in the Trust and Estates Litigation Department.