| Participant | Country | Team |
|---|---|---|
| Rachel Hall | — | — |
| Rachel Hall | — | — |
| Rachel Little | — | — |
| Raymond Burdick | — | — |
| Rebecca Vastardis | — | — |
| Rex Srinvasan | — | — |
| Ricardo Smith | — | — |
| Richard Brown | — | — |
| Richard Davis | — | — |
| Richard Davis | — | — |
| Richard Sparks | — | — |
| Richard Sparks | — | — |
| Ricky Hernandez | — | — |
| Ricky Hernandez | — | — |
| Rita Fultz | — | — |
| Robbie Wallen | — | — |
| Robert Daniels | — | — |
| Robert Daniels | — | — |
| Robert Etheridge | — | — |
| Robert Green | — | — |
| Robert Green | — | — |
| Robert Hungerford | — | — |
| Robert Mcghee | — | — |
| Robert Miller | — | — |
| Robert Morrow | — | — |
| Robert Morrow | — | — |
| Robert Ouellette | — | — |
| Robert Pardo | — | — |
| Robert Pfeifer | — | — |
| Robert Pfeifer | — | — |
| Robert Schrenk | — | — |
| Robert Zavala | — | — |
| Rodolfo Ford | — | — |
| Ronald Miranda | — | — |
| Rosa Lopez | — | — |
| Rosa Lopez | — | — |
| Rose Garcia | — | — |
| Rose Garcia | — | — |
| Rosita Hayden | — | — |
| Rosita Hayden | — | — |
| Rubin York | — | — |
| Rubin York | — | — |
| Rusty Hansen | — | — |
| Ruth Doak | — | — |
| Ruth Doak | — | — |
| Ruth Hasler | — | — |
| Ryan Patz | — | — |
| Ryan Redick | — | — |
| Ryan Redick | — | — |
| Sam Hackman | — | — |
