The Challenge · Season 21
The Challenge: Rivals
Champion: Evelyn Smith & Johnny "Bananas" Devenanzio & Paula Meronek & Tyler Duckworth †
Season overview
Location
Dominical, Costa Rica
Aired
June 22, 2011
through September 7, 2011
Episodes
12
Players
25
Host
T. J. Lavin
Cast type
Returning players
Cast
| Place | Player | Result |
|---|---|---|
| 1st |  Evelyn Smith Fresh Meat | Winner (3) |
| 1st |  Johnny "Bananas" Devenanzio The Real World: Key West | Winner (3) |
| 1st |  Paula Meronek The Real World: Key West | Winner |
| 1st | Tyler Duckworth † The Real World: Key West | Winner (2) |
| 2nd |  Cara Maria Sorbello Fresh Meat II | Runner-up |
| 2nd |  Kenny Santucci Fresh Meat | Runner-up |
| 2nd |  Laurel Stucky Fresh Meat II | Runner-up |
| 2nd |  Wes Bergmann The Real World: Austin | Runner-up |
| 3rd |  Adam King The Real World: Paris | Eliminated |
| 3rd |  Aneesa Ferreira The Real World: Chicago | Eliminated |
| 3rd |  Brandon Nelson Fresh Meat II | Eliminated |
| 3rd |  Camila Nakagawa Spring Break Challenge | Eliminated |
| 3rd |  Chris "CT" Tamburello The Real World: Paris | Eliminated |
| 3rd |  Davis Mallory The Real World: Denver | Eliminated |
| 3rd |  Evan Starkman Fresh Meat | Eliminated |
| 3rd |  Jasmine Reynaud The Real World: Cancun | Eliminated |
| 3rd |  Jonna Mannion The Real World: Cancun | Eliminated |
| 3rd |  Katelynn Cusanelli The Real World: Brooklyn | Eliminated |
| 3rd |  Nehemiah Clark The Real World: Austin | Eliminated |
| 3rd |  Robin Hibbard The Real World: San Diego (2004) | Eliminated |
| 3rd |  Sarah Rice The Real World: Brooklyn | Eliminated |
| 3rd |  Theresa Gonzalez Fresh Meat II | Eliminated |
| 3rd |  Ty Ruff The Real World: D.C. | Eliminated |
| 3rd |  Tyrie Ballard The Real World: Denver | Eliminated |
| 4th |  Adam Royer The Real World: Las Vegas (2011) | Disqualified |