| Date | 12 – 16 October 2018 | |
|---|---|---|
| Status | YOG | |
| Location | Athletics Field, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | |
| Participants | 16 from 16 countries | |
| Format | Two stages with final results determined by cumulative time. | |
| Pos | Competitor | NOC | Time | |||
|---|---|---|---|---|---|---|
| 1 | Xi Ricuo |  CHN | 45:03.49 | Gold | ||
| 2 | Sofía Ramos |  MEX | 45:58.97 | Silver | ||
| 3 | Olga Fiaska |  GRE | 46:10.02 | Bronze | ||
| 4 | María Villalva |  ECU | 46:15.45 | |||
| 5 | Simona Bertini |  ITA | 48:11.11 | |||
| 6 | Evin Demir |  TUR | 48:28.21 | |||
| 7 | Daryna Kasian |  UKR | 49:08.04 | |||
| 8 | Ana Pulgarín |  ESP | 50:19.97 | |||
| 9 | Sintayehu Masire |  ETH | 51:07.62 | |||
| 10 | Freysi Donaires |  PER | 51:10.65 | |||
| 11 | Stephanie Chávez |  BOL | 51:20.89 | |||
| 12 | Marissa Swanepoel |  RSA | 51:38.78 | |||
| 13 | Melany Trejo |  ESA | 51:55.07 | |||
| 14 | Kristina Morozova |  KAZ | 52:27.00 | |||
| 15 | Carla López |  DOM | 53:41.92 | |||
| Hanna Zubkova |  BLR | – |
