The men's long jump event at the 2000 World Junior Championships in Athletics was held in Santiago, Chile, at Estadio Nacional Julio Martínez Prádanos on 21 and 22 October.
| Gold | Cai Peng | |
| Silver | Vladimir Zyuskov | |
| Bronze | Yoelmis Pacheco |
22 October
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 7.88 (w: -0.5 m/s) | x | x | x | x | x | 7.88 (w: -0.5 m/s) | ||||
| align=left | align=left | | 7.41 (w: -0.2 m/s) | 7.79 w (w: +2.4 m/s) | 7.84 (w: -0.6 m/s) | 7.79 (w: +1.1 m/s) | 7.57 (w: -1.6 m/s) | x | 7.84 (w: -0.6 m/s) | ||||
| align=left | align=left | | x | 7.54 (w: -0.7 m/s) | 7.33 (w: +0.1 m/s) | 7.50 (w: -0.8 m/s) | 7.71 (w: +0.5 m/s) | 7.71 (w: 0.0 m/s) | 7.71 (w: +0.5 m/s) | ||||
| 4 | align=left | align=left |  | 7.48 (w: -1.5 m/s) | 7.66 (w: +0.6 m/s) | 7.40 (w: -0.4 m/s) | 7.58 (w: -0.2 m/s) | 6.60 (w: 0.0 m/s) | x | 7.66 (w: +0.6 m/s) | |||
| 5 | align=left | align=left |  | 7.61 (w: -0.2 m/s) | x | 7.65 (w: -2.5 m/s) | 7.60 (w: +0.4 m/s) | 7.54 (w: -0.6 m/s) | 7.54 (w: +0.2 m/s) | 7.65 (w: -2.5 m/s) | |||
| 6 | align=left | align=left |  | 7.65 (w: +0.1 m/s) | x | 7.38 (w: +0.5 m/s) | - | 7.15 (w: -0.7 m/s) | x | 7.65 (w: +0.1 m/s) | |||
| 7 | align=left | align=left |  | 7.42 (w: -0.4 m/s) | 7.57 (w: +0.7 m/s) | 7.34 (w: -0.9 m/s) | x | x | 7.42 (w: +0.7 m/s) | 7.57 (w: +0.7 m/s) | |||
| 8 | align=left | align=left | 7.48 (w: -1.3 m/s) | x | 7.42 (w: -1.2 m/s) | 7.40 (w: +0.7 m/s) | 7.50 (w: -1.4 m/s) | x | 7.50 (w: -1.4 m/s) | ||||
| 9 | align=left | align=left |  | 7.43 (w: +0.2 m/s) | 7.40 (w: 0.0 m/s) | x | 7.43 (w: +0.2 m/s) | ||||||
| 10 | align=left | align=left | 7.38 (w: -1.5 m/s) | x | x | 7.38 (w: -1.5 m/s) | |||||||
| 11 | align=left | align=left | 7.22 (w: +0.6 m/s) | x | 7.35 (w: +0.6 m/s) | 7.35 (w: +0.6 m/s) | |||||||
| 12 | align=left | align=left | 7.18 (w: +0.1 m/s) | 7.29 (w: +0.7 m/s) | 7.24 (w: +1.1 m/s) | 7.29 (w: +0.7 m/s) | |||||||
21 October
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | x | 7.49 (w: +0.5 m/s) | 7.62 (w: +0.6 m/s) | 7.62 (w: +0.6 m/s) | q | ||
| 2 | align=left | align=left | 7.45 (w: +0.1 m/s) | 7.25 (w: -0.7 m/s) | 7.62 (w: +0.3 m/s) | 7.62 (w: +0.3 m/s) | q | |||
| 3 | align=left | align=left | | x | 7.62 (w: -0.3 m/s) | - | 7.62 (w: -0.3 m/s) | q | ||
| 4 | align=left | align=left | 7.48 (w: 0.0 m/s) | 7.41 (w: 0.0 m/s) | x | 7.48 (w: 0.0 m/s) | q | |||
| 5 | align=left | align=left |  | 5.05 (w: -0.2 m/s) | 7.36 (w: +0.4 m/s) | 7.35 (w: -0.3 m/s) | 7.36 (w: +0.4 m/s) | |||
| 6 | align=left | align=left |  | 7.20 (w: -1.1 m/s) | 5.75 (w: 0.0 m/s) | 7.31 (w: +0.8 m/s) | 7.31 (w: +0.8 m/s) | |||
| 7 | align=left | align=left |  | x | 7.27 (w: 0.0 m/s) | x | 7.27 (w: 0.0 m/s) | |||
| 8 | align=left | align=left | x | x | 7.25 (w: -0.2 m/s) | 7.25 (w: -0.2 m/s) | ||||
| 9 | align=left | align=left | x | x | 7.01 (w: +0.8 m/s) | 7.01 (w: +0.8 m/s) | ||||
| 10 | align=left | align=left |  | x | 6.98 (w: 0.0 m/s) | x | 6.98 (w: 0.0 m/s) | |||
| 11 | align=left | align=left | 6.97 (w: +0.4 m/s) | 6.66 (w: +0.4 m/s) | 5.19 (w: +1.4 m/s) | 6.97 (w: +0.4 m/s) | ||||
| 12 | align=left | align=left |  | 5.06 (w: +0.3 m/s) | 6.82 (w: 0.0 m/s) | 6.91 (w: -0.3 m/s) | 6.91 (w: -0.3 m/s) | |||
| 13 | align=left | align=left | 6.86 (w: +0.3 m/s) | 6.68 (w: +0.8 m/s) | 6.46 (w: -0.3 m/s) | 6.86 (w: +0.3 m/s) | ||||
| 14 | align=left | align=left | 6.67 (w: -0.3 m/s) | 6.78 (w: +0.5 m/s) | x | 6.78 (w: +0.5 m/s) | ||||
| 15 | align=left | align=left |  | 6.55 (w: +0.8 m/s) | x | 6.76 (w: +0.6 m/s) | 6.76 (w: +0.6 m/s) | |||
| 16 | align=left | align=left | 6.59 (w: +0.1 m/s) | 3.93 (w: -1.2 m/s) | 6.52 (w: -0.4 m/s) | 6.59 (w: +0.1 m/s) | ||||
| 17 | align=left | align=left |  | 6.51 (w: NWI) | 6.27 (w: -1.0 m/s) | 6.21 (w: -1.1 m/s) | 6.51 (w: NWI) | |||
| align=left | align=left | x | x | x | NM | |||||
| align=left | align=left |  | x | x | - | NM | ||||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 7.44 (w: 0.0 m/s) | 7.28 (w: -0.5 m/s) | 7.69 (w: -0.5 m/s) | 7.69 (w: -0.5 m/s) | Q | ||
| 2 | align=left | align=left | | 7.40 (w: +1.1 m/s) | 7.42 (w: -0.4 m/s) | 7.64 (w: -0.2 m/s) | 7.64 (w: -0.2 m/s) | q | ||
| 3 | align=left | align=left | x | 7.58 (w: +0.6 m/s) | - | 7.58 (w: +0.6 m/s) | q | |||
| 4 | align=left | align=left | | 6.95 (w: -0.8 m/s) | 7.53 (w: 0.0 m/s) | 7.23 (w: +0.4 m/s) | 7.53 (w: 0.0 m/s) | q | ||
| 5 | align=left | align=left | | 7.52 (w: +0.7 m/s) | 7.26 (w: -0.2 m/s) | - | 7.52 (w: +0.7 m/s) | q | ||
| 6 | align=left | align=left | | 7.45 (w: +0.4 m/s) | 7.51 (w: +0.1 m/s) | 7.30 (w: -0.2 m/s) | 7.51 (w: +0.1 m/s) | q | ||
| 7 | align=left | align=left | | 7.29 (w: -0.7 m/s) | 6.96 (w: -0.5 m/s) | 7.47 (w: +0.6 m/s) | 7.47 (w: +0.6 m/s) | q | ||
| 8 | align=left | align=left | 7.18 (w: +0.1 m/s) | 7.46 (w: +0.4 m/s) | 6.96 (w: -0.1 m/s) | 7.46 (w: +0.4 m/s) | q | |||
| 9 | align=left | align=left | 7.39 (w: +0.4 m/s) | 7.35 (w: +0.4 m/s) | 7.22 (w: +0.1 m/s) | 7.39 (w: +0.4 m/s) | ||||
| 10 | align=left | align=left |  | 6.99 (w: +0.4 m/s) | 6.90 (w: -0.2 m/s) | 7.20 (w: -0.4 m/s) | 7.20 (w: -0.4 m/s) | |||
| 11 | align=left | align=left | 6.80 (w: +0.4 m/s) | 7.16 (w: 0.0 m/s) | 7.19 (w: +0.1 m/s) | 7.19 (w: +0.1 m/s) | ||||
| 12 | align=left | align=left |  | x | 7.16 (w: -0.3 m/s) | x | 7.16 (w: -0.3 m/s) | |||
| 13 | align=left | align=left | 7.15 (w: +0.3 m/s) | 6.94 (w: -0.7 m/s) | x | 7.15 (w: +0.3 m/s) | ||||
| 14 | align=left | align=left |  | 7.01 (w: +0.2 m/s) | 7.09 (w: +0.3 m/s) | 6.77 (w: -0.2 m/s) | 7.09 (w: +0.3 m/s) | |||
| 15 | align=left | align=left |  | x | x | 7.08 (w: -0.5 m/s) | 7.08 (w: -0.5 m/s) | |||
| 16 | align=left | align=left | 7.05 (w: -0.4 m/s) | 6.63 (w: -0.2 m/s) | 6.93 (w: +0.2 m/s) | 7.05 (w: -0.4 m/s) | ||||
| 17 | align=left | align=left | 7.04 (w: +0.7 m/s) | x | 6.82 (w: -0.1 m/s) | 7.04 (w: +0.7 m/s) | ||||
| 18 | align=left | align=left | | 6.94 (w: -0.5 m/s) | x | 6.81 (w: +0.3 m/s) | 6.94 (w: -0.5 m/s) | |||
| 19 | align=left | align=left | | 6.81 (w: +0.6 m/s) | 5.39 (w: +0.6 m/s) | 6.58 (w: 0.0 m/s) | 6.81 (w: +0.6 m/s) | |||
| align=left | align=left | | x | - | - | NM | ||||
According to an unofficial count, 39 athletes from 32 countries participated in the event.