| Sub 20 | |
|---|---|
| 2022 |  Cali (COL) |
| 2021 |  Nairobi (KEN) |
| 2018 |  Tampere (FIN) |
| 2016 |  Bydgoszcz (POL) (2) |
| 2014 |  Eugene, OR (USA) |
| 2012 |  Barcelona (ESP) |
| 2010 |  Moncton (CAN) |
| 2008 | Bydgoszcz (POL) |
| 2006 |  Pekín (CHN) |
| 2004 |  Grosseto (ITA) |
| 2002 |  Kingston (JAM) |
| 2000 |  Santiago (CHI) |
| 1998 |  Annecy (FRA) |
| 1996 |  Sídney (AUS) |
| 1994 |  Lisboa (POR) |
| 1992 |  Seúl (KOR) |
| 1990 |  Plovdiv (BUL) |
| 1988 | Sudbury (CAN) |
| 1986 |  Atenas (GRE) |
