Murray MacKenzie

Born : 1951 Cat. M75 Ultrarunner since 1974

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

64,5%

Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 79 738; Σ finishers = 123 597. 79 738 / 123 597 × 100 = 64.51%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed16

Km — ultra races1 274 km

Longest race90,0 km

53rd Comrades Marathon - Down Run — 31/5/1978

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road96,1%

Trail3,9%

Records

50 km7h57'20

HISTORY

16 race(s)

Date		Race	Perf.	Rk
2001
01.09	50km	9. Mont-Aux-Sources 50km Challenge	7:57:20 h	193
2000
16.06	87km road race	75th Comrades Marathon - Up Run	11:31:13 h	15383
1998
16.06	87km	73rd Comrades Marathon - Up Run	10:52:51 h	9614
1997
16.06	89km	72nd Comrades Marathon - Down Run	9:58:40 h	6035
1996
06.04	56km	27th Two Oceans Marathon	5:52:38 h	6241
1994
31.05	87km	69th Comrades Marathon - Up Run	10:39:39 h	8172
1993
31.05	89km	68th Comrades Marathon - Down Run	9:57:49 h	6381
10.04	56km	24th Two Oceans Marathon	5:53:29 h	6691
1991
31.05	89km	66th Comrades Marathon - Down Run	8:20:39 h	2282
1990
31.05	87km road race	65th Comrades Marathon - Up Run	9:58:46 h	5994
14.04	56km	21st Two Oceans Marathon	5:26:32 h	4276
1987
31.05	87km	62nd Comrades Marathon - Up Run	9:54:52 h	4555
1979
31.05	87km	54th Comrades Marathon - Up Run	7:23:10 h	282
1978
31.05	90km	53rd Comrades Marathon - Down Run	10:02:00 h	2035
1976
31.05	90km	51st Comrades Marathon - Down Run	8:51:00 h	629
1974
31.05	87km	49th Comrades Marathon - Up Run	10:32:00 h	991

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	31/5/1978	53rd Comrades Marathon - Down Run	90,00	×3
✓ 2	31/5/1976	51st Comrades Marathon - Down Run	90,00	×3
✓ 3	16/6/1997	72nd Comrades Marathon - Down Run	89,00	×2
✓ 4	31/5/1993	68th Comrades Marathon - Down Run	89,00	×2
✓ 5	31/5/1991	66th Comrades Marathon - Down Run	89,00	×2
✓ 6	16/6/2000	75th Comrades Marathon - Up Run (RSA)	87,00	×2
✓ 7	16/6/1998	73rd Comrades Marathon - Up Run	87,00	×2
✓ 8	31/5/1994	69th Comrades Marathon - Up Run	87,00	×2
✓ 9	31/5/1990	65th Comrades Marathon - Up Run (RSA)	87,00	×2
✓ 10	31/5/1987	62nd Comrades Marathon - Up Run	87,00	×2
✓ 11	31/5/1979	54th Comrades Marathon - Up Run	87,00	×2
✓ 12	31/5/1974	49th Comrades Marathon - Up Run	87,00	×2
✓ 13	6/4/1996	27th Two Oceans Marathon	56,00	×1
✓ 14	10/4/1993	24th Two Oceans Marathon	56,00	×1
✓ 15	14/4/1990	21st Two Oceans Marathon	56,00	×1
✓ 16	1/9/2001	9. Mont-Aux-Sources 50km Challenge	50,00	×1