Jann Trefny
- Born
- Jan 10, 1966 (60 years old)
- Events
- Decathlon
Jann Trefny is a Switzerland sprinter, born on January 10, 1966. He competes primarily in the 100m, 400m and 1500m.
His personal bests include 11.12 in the 100m, 48.06 in the 400m, 4:12.65 in the 1500m, 14.71 in the 110mH and 2.01 in the HJ. He is currently active on the international athletics circuit, representing Switzerland.
Personal best · Decathlon7821
1991 season best7850Jun 15, 1991
Last competitionIAAF World Championships, National Stadium, TokyoAug 30, 1991 · 4:16.95
As of Oct 28, 2026: Decathlon 7821, 1991 season best 7850 (Jun 15, 1991) · Last competition: IAAF World Championships, National Stadium, Tokyo, Aug 30, 1991, 4:16.95 · 60 years old
Personal bests
WA points calculator →DisciplineResultAll-time
* Wind-assisted (> 2.0 m/s)
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 1991 | HJ | 2.01 | – | Jul 6, 1991 | European Cup Combined Events Super League |
| 1991 | PV | 4.40 | – | Jul 7, 1991 | European Cup Combined Events Super League |
| 1991 | LJ | 6.66 | +0.5 | Jul 6, 1991 | European Cup Combined Events Super League |
| 1991 | 100m | 11.31 | +0.9 | Jul 6, 1991 | European Cup Combined Events Super League |
| 1991 | SP | 14.44 | – | Jul 6, 1991 | European Cup Combined Events Super League |
| 1991 | 110mH | 14.79 | -0.5 | Jul 7, 1991 | European Cup Combined Events Super League |
| 1991 | DT | 44.94 | – | Jul 7, 1991 | European Cup Combined Events Super League |
| 1991 | 400m | 49.31 | – | Aug 29, 1991 | IAAF World Championships, National Stadium, Tokyo |