Registered Testing Pool (RTP)
| Athlete | Discipline | Secondary Discipline | World Athletics ID | Gender | Nationality | Date of Birth |
|---|---|---|---|---|---|---|
| Jemma REEKIE | 800m | Middle Distance (800m-1500m) | 14533469 | F | GBR | 1998-03-06 |
| Jereem RICHARDS | 400m | Sprints (400m or less) | 14434521 | M | TTO | 1994-01-13 |
| Jesca CHELANGAT | Half Marathon | Long Distance (3000m+) | 14708966 | F | KEN | 1998-01-09 |
| Jessica HULL | 1500m | Middle Distance (800m-1500m) | 14464506 | F | AUS | 1996-10-22 |
| Jessica SCHILDER | Shot Put | Throws | 14688805 | F | NED | 1999-03-19 |
| Jessika GBAI | 200m | Sprints (400m or less) | 14823620 | F | CIV | 1998-12-29 |
| Jiayuan SONG | Shot Put | Throws | 14668306 | F | CHN | 1997-09-15 |
| Jie ZHAO | Hammer | Throws | 14889043 | F | CHN | 2002-10-13 |
| Jimmy GRESSIER | 5000m | Long Distance (3000m+) | 14694062 | M | FRA | 1997-05-04 |
| Jo-Ane DU PLESSIS | Javelin | Throws | 14558613 | F | RSA | 1997-10-03 |
| Joan Chelimo MELLY | Half Marathon | Long Distance (3000m+) | 14426302 | F | ROU | 1990-11-10 |
| Joe KOVACS | Shot Put | Throws | 14243308 | M | USA | 1989-06-28 |
| John KORIR | Marathon | Long Distance (3000m+) | 14845463 | M | KEN | 1996-12-02 |
| Jordan A. DÍAZ FORTUN | Triple Jump | Jumps | 14709120 | M | ESP | 2001-02-23 |
| Jordan SCOTT | Triple Jump | Jumps | 14569308 | M | JAM | 1997-06-29 |
| Jorinde VAN KLINKEN | Discus | Throws | 14676577 | F | NED | 2000-02-02 |
| José Luis DOCTOR | 20km Walk | Long Distance (3000m+) | 14515965 | M | MEX | 1996-06-14 |
| Josh AWOTUNDE | Shot Put | Throws | 14522818 | M | USA | 1995-06-12 |
| Josh HOEY | 800m | Middle Distance (800m-1500m) | 14695060 | M | USA | 1999-11-01 |
| Josh KERR | 1500m | Middle Distance (800m-1500m) | 14533464 | M | GBR | 1997-10-08 |
| Joshua CHEPTEGEI | Marathon | Long Distance (3000m+) | 14645612 | M | UGA | 1996-09-12 |
| Josphine Ebei NAUKOT | Half Marathon | Long Distance (3000m+) | 15203733 | F | KEN | 2003-07-09 |
| Joy CHEPTOYEK | 10000m | Long Distance (3000m+) | 14818058 | F | UGA | 2002-05-15 |
| Joyce Chepkemoi TELE | Marathon | Long Distance (3000m+) | 14335575 | F | KEN | 1995-05-03 |
| Joyciline JEPKOSGEI | Marathon | Long Distance (3000m+) | 14704913 | F | KEN | 1993-12-08 |
RTP - useful information
Learn more about out of competition testing, the process and what to expect and do below.