William Courtney

ID 392072

Born : 1935 Cat. M90 Ultrarunner since 1989

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 ?

Australia

85,1%

Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 693; Σ finishers = 1 990. 1 693 / 1 990 × 100 = 85.08%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed9

Km — ultra races426 km

Longest race50,0 km

Royal National Park Ultra Marathon — 17/10/1992

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road11,7%

Trail88,3%

Records

50 km5h48'29

HISTORY

9 race(s)

Date		Race	Perf.	Rk
1998
07.03	46.6km	15th Six Foot Track	5:54:57 h	277
1995
04.03	46.6km	12th Six Foot Track	7:08:12 h	261
1994
05.03	46.6km	11th Six Foot Track	6:45:46 h	216
1993
06.03	46.6km	10th Six Foot Track	6:49:04 h	219
1992
17.10	50km	Royal National Park Ultra Marathon	7:13:15 h	42
21.03	46.6km	9th Six Foot Track	6:50:07 h	263
1991
16.03	46.6km	8th Six Foot Track	6:39:38 h	237
03.03	50km	Parramatta 50K run	5:48:29 h	29
1989
18.03	46.6km	6th Six Foot Track	6:47:45 h	158

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	17/10/1992	Royal National Park Ultra Marathon	50,00	×2
✓ 2	3/3/1991	Parramatta 50K run	50,00	×2
✓ 3	7/3/1998	15th Six Foot Track	46,60	×2
✓ 4	4/3/1995	12th Six Foot Track	46,60	×2
✓ 5	5/3/1994	11th Six Foot Track	46,60	×2
✓ 6	6/3/1993	10th Six Foot Track	46,60	×2
✓ 7	21/3/1992	9th Six Foot Track	46,60	×2
✓ 8	16/3/1991	8th Six Foot Track	46,60	×2
✓ 9	18/3/1989	6th Six Foot Track	46,60	×2