Bestzeitenentwicklung
| Jahr | Distanz | |||||
|---|---|---|---|---|---|---|
| 1'500m | 3'000m | 5'000m | 10'000m | 1/2 Marathon | Marathon | |
| 1989 | 4:24,77 | 9:21,86 | ||||
| 1990 | 4:14,74 | 9:00,99 | ||||
| 1991 | 4:06,60 | 8:51,72 | 15:52,36 | |||
| 1992 | 4:02,03 | 8:35,25 | 14:42,98 | |||
| 1993 | 4:00,72 | 8:16,87 | 14:17,68 | 29:49,12 | ||
| 1994 | 3:55,72 | 14:15,91 | ||||
| 1995 | 3:49,59 | 8:01,32 | 14:02,32 | 29:43,40 | ||
| 1996 | 29:08,28 | |||||
| 1997 | 13:54,41 | 28:55,72 | 1:03:23 | |||
| 1998 | 8:00,43 | 13:52,66 | 28:25,51 | |||
| 1999 | 13:40,28 | 2:13:36 | ||||
| 2000 | 28:22,53 | 2:12:53 | ||||
| 2001 | 1:02:48 | 2:10:54 | ||||
| 2004 | 2:09:56 | |||||
| 2006 | 1:02:16 | |||||
| 2007 | 2:08:20 | |||||
| 2008 | 2:07:23 |