Jason Marshall

Born : 1969 Cat. M55 Ultrarunner since 1987

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details

Countries visited ?

South Africa

39,1%

Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 65 160; Σ finishers = 166 736. 65 160 / 166 736 × 100 = 39.08%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22

Km — ultra races1 603 km

Longest race89,0 km

87th Comrades Marathon - Down Run (RSA) — 3/6/2012

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road84,2%

Trail15,8%

Records

50 km4h13'35

HISTORY

22 race(s)

Date		Race	Perf.	Rk
2012
03.06	89km road race	87th Comrades Marathon - Down Run	10:47:29 h	7013
21.04	50km road race	26th Loskop Ultra Marathon 50km	4:49:54 h	988
2005
23.04	50km	19th Loskop Ultra Marathon 50km	4:13:35 h	746
2004
17.07	52km	16th Rhodes 52 km Trail Run	6:14:19 h	72
16.06	87km road race	79th Comrades Marathon - Up Run	8:50:33 h	2059
2003
19.07	52km	15th Rhodes 52 km Trail Run	6:17:05 h	75
16.06	89km road race	78th Comrades Marathon - Down Run	8:03:14 h	1211
2002
17.06	87km road race	77th Comrades Marathon - Up Run	8:35:05 h	1712
2001
01.09	50km	9. Mont-Aux-Sources 50km Challenge	5:44:47 h	42
16.06	89km road race	76th Comrades Marathon - Down Run	8:10:55 h	1442
2000
02.09	50km	8. Mont-Aux-Sources 50km Challenge	7:46:59 h	83
16.06	87km road race	75th Comrades Marathon - Up Run	8:41:10 h	2679
18.03	50km	10th Om Die Dam 50km	4:39:32 h	941
1999
04.09	50km	7. Mont-Aux-Sources 50km Challenge	6:51:21 h	68
16.06	89km	74th Comrades Marathon - Down Run	9:06:44 h	3297
1998
16.06	87km	73rd Comrades Marathon - Up Run	8:38:47 h	1978
1997
16.06	89km	72nd Comrades Marathon - Down Run	9:25:31 h	4211
1996
17.06	87km	71st Comrades Marathon - Up Run	10:05:29 h	6762
1995
20.05	89km	70th Comrades Marathon - Down Run	10:26:25 h	6846
1988
31.05	87km	63rd Comrades Marathon - Up Run	10:47:32 h	9566
02.04	56km	19th Two Oceans Marathon	5:53:03 h	5308
1987
31.05	87km	62nd Comrades Marathon - Up Run	10:53:20 h	8083

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	3/6/2012	87th Comrades Marathon - Down Run (RSA)	89,00	×2
✓ 2	16/6/2003	78th Comrades Marathon - Down Run (RSA)	89,00	×2
✓ 3	16/6/2001	76th Comrades Marathon - Down Run (RSA)	89,00	×2
✓ 4	16/6/1999	74th Comrades Marathon - Down Run	89,00	×2
✓ 5	16/6/1997	72nd Comrades Marathon - Down Run	89,00	×2
✓ 6	20/5/1995	70th Comrades Marathon - Down Run	89,00	×2
✓ 7	16/6/2004	79th Comrades Marathon - Up Run (RSA)	87,00	×2
✓ 8	17/6/2002	77th Comrades Marathon - Up Run (RSA)	87,00	×2
✓ 9	16/6/2000	75th Comrades Marathon - Up Run (RSA)	87,00	×2
✓ 10	16/6/1998	73rd Comrades Marathon - Up Run	87,00	×2
✓ 11	17/6/1996	71st Comrades Marathon - Up Run	87,00	×2
✓ 12	31/5/1988	63rd Comrades Marathon - Up Run	87,00	×2
✓ 13	31/5/1987	62nd Comrades Marathon - Up Run	87,00	×2
✓ 14	2/4/1988	19th Two Oceans Marathon	56,00	×1
✓ 15	17/7/2004	16th Rhodes 52 km Trail Run	52,00	×1
✓ 16	19/7/2003	15th Rhodes 52 km Trail Run	52,00	×1
✓ 17	21/4/2012	26th Loskop Ultra Marathon 50km (RSA)	50,00	×1
✓ 18	23/4/2005	19th Loskop Ultra Marathon 50km	50,00	×1
✓ 19	1/9/2001	9. Mont-Aux-Sources 50km Challenge	50,00	×1
✓ 20	2/9/2000	8. Mont-Aux-Sources 50km Challenge	50,00	×1
✓ 21	18/3/2000	10th Om Die Dam 50km	50,00	×1
✓ 22	4/9/1999	7. Mont-Aux-Sources 50km Challenge	50,00	×1