CS

Cosmas Silei

KENKENMen
Birth dateSep 10, 1948
Height-
Weight-

Cosmas Silei is a Kenya middle-distance runner, born on September 10, 1948. He competes primarily in the 800m, 1500m and 400mH.

His personal bests include 1:45.3h in the 800m, 3:39.5h in the 1500m and 50.02 in the 400mH. He has earned 1 gold medal in major international competitions. He is currently active on the international athletics circuit, representing Kenya.

Key facts
800 m
1:45.3h
#590 all-time
1500 m
3:39.5h
1974 season best
1:47.7h
Jan 20, 1974
1974 season best
Last competition
Christchurch Commonwealth Games
Jan 29, 1974 · 50.02
Christchurch Commonwealth Games
Age
78 years old

As of Sep 14, 2026: 800 m 1:45.3h (#590 all-time), 1500 m 3:39.5h, 1974 season best 1:47.7h (Jan 20, 1974) · Last competition: Christchurch Commonwealth Games, Jan 29, 1974, 50.02 · 78 years old

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
1974
400mH
50.02-Jan 29, 1974-Christchurch Commonwealth Games
1974
800m
1:47.7h-Jan 20, 1974
↓
-
1973
800m
1:45.3h-Jul 2, 1973
↓
Lagos (NGR)
1973
1500m
3:42.13-Jul 2, 1973
↓
Stockholm (SWE)
1972
800m
1:47.3h-Dec 9, 1972
↓
-
1972
1500m
3:39.5h-Jul 1, 1972
↓
Kisumu (KEN)

1974

2 performances
DisciplineResultWindDateCompetitions
400mH
50.02-Jan 29Christchurch Commonwealth Games
800m
1:47.7HT-Jan 20Christchurch

1973

3 performances
DisciplineResultWindDateCompetitions
1500m
3:42.13-Jul 2Stockholm DN Galan, Stockholm
800m
1:45.3HT-Jul 2Stockholm DN Galan, Stockholm
800m
1:45.38-Jan 17Lagos All-Africa Games, Lagos

1972

3 performances
DisciplineResultWindDateCompetitions
800m
1:47.3HT-Dec 9Nairobi
1500m
3:52.0HT-Sep 8The XX Olympic Games, Olympiastadion, München
1500m
3:39.5HT-Jul 1Kisumu

Honours

5

Christchurch Commonwealth Games

400 Metres Hurdles

1974
5

Christchurch Commonwealth Games

400 Metres Hurdles

1974
🥇

Lagos All-Africa Games

800 Metres

1973
FAQ

Frequently asked questions

What is Cosmas Silei's 800 m personal best?

Cosmas Silei's 800 m personal best is 1:45.3h, set on Jul 2, 1973 in Stockholm (SWE), #590 on the all-time list.

Which events does Cosmas Silei compete in?

Cosmas Silei competes in the 800 m and 1500 m.

How did Cosmas Silei perform in 1974?

1974 season best: 1:47.7h, set on Jan 20, 1974. Last competition: Christchurch Commonwealth Games on Jan 29, 1974, 50.02.