Most knockdowns: since 2001
Most knockdowns scored.
1,260 fighters.
| # | Fighter | Total |
|---|---|---|
| =780 | Rafael Cavalcante | 1 |
| =780 | Ramazan Emeev | 1 |
| =780 | Rameau Thierry Sokoudjou | 1 |
| =780 | Ramiz Brahimaj | 1 |
| =780 | Ramon Taveras | 1 |
| =780 | Randy Couture | 1 |
| =780 | Raphael Pessoa | 1 |
| =780 | Raquel Pennington | 1 |
| =780 | Rashad Coulter | 1 |
| =780 | Raul Rosas Jr. | 1 |
| =780 | Raulian Paiva | 1 |
| =780 | Renee Forte | 1 |
| =780 | Ricky Turcios | 1 |
| =780 | Rizvan Kuniev | 1 |
| =780 | Robelis Despaigne | 1 |
| =780 | Robert Bryczek | 1 |
| =780 | Robert Whiteford | 1 |
| =780 | Roberto Romero | 1 |
| =780 | Rodolfo Vieira | 1 |
| =780 | Rodrigo Vera | 1 |
| =780 | Roger Narvaez | 1 |
| =780 | Rolando Delgado | 1 |
| =780 | Rolando Dy | 1 |
| =780 | Romie Aram | 1 |
| =780 | Rory MacDonald | 1 |
| =780 | Rory Markham | 1 |
| =780 | Ross Pointon | 1 |
| =780 | Rousimar Palhares | 1 |
| =780 | Roxanne Modafferi | 1 |
| =780 | Ruslan Magomedov | 1 |
| =780 | Rustam Khabilov | 1 |
| =780 | Ryan Jensen | 1 |
| =780 | Sabina Mazo | 1 |
| =780 | Salahdine Parnasse | 1 |
| =780 | Sam Hoger | 1 |
| =780 | Sam Sicilia | 1 |
| =780 | Sara McMann | 1 |
| =780 | Scott Jorgensen | 1 |
| =780 | Sean Brady | 1 |
| =780 | Sean Pierson | 1 |
| =780 | Sean Sharaf | 1 |
| =780 | Sergey Morozov | 1 |
| =780 | Sergio Moraes | 1 |
| =780 | Sergio Pettis | 1 |
| =780 | SeungGuk Choi | 1 |
| =780 | Shana Dobson | 1 |
| =780 | Shane Nelson | 1 |
| =780 | Shane Roller | 1 |
| =780 | Shane Young | 1 |
| =780 | Shavkat Rakhmonov | 1 |