Debutants
Ana Vivar is the youngest debutant in Panamerican Youth Games Time Trial WU23 in 2021. There are 15 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | VIVAR Ana | Ecuador | 17y + 353d |
| 2 | PEÑAFIEL Marcela Itzae | Ecuador | 18y + 26d |
| 3 | HINOJOSA Romina | Mexico | 19y + 1d |
| 4 | CAMARGO Yana | Brazil | 19y + 31d |
| 5 | SARABIA Abigail | Bolivia | 19y + 352d |
| 6 | QUEVEDO Aylena de las Mercedes | Cuba | 20y + 51d |
| 7 | ACEVEDO Yareli | Mexico | 20y + 125d |
| 8 | BOGANTES Angie Paola | Costa Rica | 20y + 269d |
| 9 | MAGALHÃES Ana Vitória | Brazil | 21y + 38d |
| 10 | BOTERO Erika Milena | Colombia | 21y + 328d |
| 11 | RAMIREZ Sharon | Costa Rica | 22y + 112d |
| 12 | DOMINGUEZ Valeska | Panama | 22y + 171d |
| 13 | SEPULVEDA Khamila Fernanda | Chile | 22y + 177d |
| 14 | AGUIRRE Maribel Roxana | Argentina | 22y + 200d |
| 15 | HERNÁNDEZ Lina Marcela | Colombia | 22y + 331d |