| Birth Date: | 21 November 1971 |
| Birth Place: | Bydgoszcz, Poland[1] |
| Height: | 1.91m (06.27feet) |
| Weight: | 85kg (187lb) (1996) |
| Sport: | Track and field |
| Event: | Decathlon / Heptathlon |
| Club: | Zawisza Bydgoszcz |
Sebastian Michał Chmara (pronounced as /pl/; born 21 November 1971) is a former decathlete from Poland who became world indoor champion in 1999 and European indoor champion in 1998 (both in heptathlon, as decathlon is unsuitable for indoor contests).
His personal bests are 8566 points in the decathlon (Alhama de Murcia 1998) and 6415 points in the indoor heptathlon (Valencia 1998). Both are standing national records.
He is a cousin of a former pole vaulter, Mirosław Chmara.
| Representing | |||||||
|---|---|---|---|---|---|---|---|
| 1989 | European Junior Championships | Varaždin, Yugoslavia | 14th | Decathlon | 6880 pts | ||
| 1990 | World Junior Championships | Plovdiv, Bulgaria | 7th | Decathlon | 7211 pts | ||
| 1995 | World Championships | Gothenburg, Sweden | – | Decathlon | DNF | ||
| Universiade | Fukuoka, Japan | bgcolor=silver | 2nd | Decathlon | 8014 pts | ||
| 1996 | European Indoor Championships | Stockholm, Sweden | 4th | Heptathlon | 6016 pts | ||
| Hypo-Meeting | Götzis, Austria | 14th | Decathlon | 7930 pts | |||
| Olympic Games | Atlanta, United States | 15th | Decathlon | 8249 pts | |||
| 1997 | World Indoor Championships | Paris, France | – | Heptathlon | DNF | ||
| World Championships | Athens, Greece | – | Decathlon | DNF | |||
| 1998 | European Indoor Championships | Valencia, Spain | bgcolor=gold | 1st | Heptathlon | 6415 pts | |
| Hypo-Meeting | Götzis, Austria | 6th | Decathlon | 8332 pts | |||
| European Championships | Budapest, Hungary | – | Decathlon | DNF | |||
| 1999 | World Indoor Championships | Maebashi, Japan | bgcolor=gold | 1st | Heptathlon | 6386 pts | |
Outdoor
Indoor