2000 World Junior Championships in Athletics – Men's 100 metres

The men's 100 metres event at the 2000 World Junior Championships in Athletics was held in Santiago, Chile, at Estadio Nacional Julio Martínez Prádanos on 17 and 18 October.

Final
18 October Wind: +0.1 m/s

Semifinals
18 October

Semifinal 1
Wind: -0.3 m/s

Semifinal 2
Wind: -0.3 m/s

Quarterfinals
17 October

Quarterfinal 1
Wind: +0.7 m/s

Quarterfinal 2
Wind: -0.6 m/s

Quarterfinal 3
Wind: -0.3 m/s

Quarterfinal 4
Wind: -1.1 m/s

Heats
17 October

Heat 1
Wind: +2.2 m/s

Heat 2
Wind: +1.1 m/s

Heat 3
Wind: -0.6 m/s

Heat 4
Wind: +0.8 m/s

Heat 5
Wind: -1.3 m/s

Heat 6
Wind: -0.5 m/s

Heat 7
Wind: -0.8 m/s

Heat 8
Wind: +1.3 m/s

Participation
According to an unofficial count, 62 athletes from 44 countries participated in the event. • 🇦🇷 argentina (1)

• 🇦🇺 australia (2)

• 🇦🇹 austria (2)

• 🇦🇿 azerbaijan (1)

• 🇧🇪 belgium (1)

• 🇧🇷 brazil (1)

• undefined (1)

• undefined (1)

• undefined (1)

• undefined (1)

• undefined (1)

• 🇫🇮 finland (1)

• 🇫🇷 france (2)

• 🇩🇪 germany (2)

• 🇬🇭 ghana (1)

• undefined (1)

• 🇭🇺 hungary (2)

• 🇮🇱 israel (2)

• 🇮🇹 italy (2)

• 🇯🇲 jamaica (2)

• 🇯🇵 japan (2)

• undefined (1)

• undefined (1)

• 🇲🇻 maldives (1)

• 🇲🇹 malta (1)

• 🇲🇽 mexico (2)

• 🇳🇦 namibia (2)

• undefined (1)

• 🇳🇿 new zealand (2)

• 🇵🇼 palau (1)

• 🇵🇬 papua new guinea (1)

• 🇵🇱 poland (2)

• undefined (2)

• 🇶🇦 qatar (2)

• undefined (1)

• undefined (1)

• undefined (1)

• 🇪🇸 spain (1)

• 🇸🇷 suriname (1)

• undefined (2)

• 🇺🇦 ukraine (1)

• undefined (2)

• 🇺🇸 united states (2)

• 🇻🇪 venezuela (1)