Schalk Deysel

Ultrarunner since 1980

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

40,9%

Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 10 360; Σ finishers = 25 302. 10 360 / 25 302 × 100 = 40.95%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed7

Km — ultra races493 km

Longest race91,0 km

57th Comrades Marathon - Down Run — 31/5/1982

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road100,0%

Records

No record for a classic ultra format

HISTORY

7 race(s)

Date		Race	Perf.	Rk
1985
31.05	88km	60th Comrades Marathon - Up Run	9:10:03 h	2969
06.04	56km	16th Two Oceans Marathon	4:58:43 h	1890
1982
31.05	91km	57th Comrades Marathon - Down Run	8:24:18 h	1314
10.04	56km	13th Two Oceans Marathon	4:24:07 h	494
1981
01.06	90km	56th Comrades Marathon - Up Run	9:43:46 h	2291
18.04	56km	12th Two Oceans Marathon	4:41:14 h	669
1980
05.04	56km	11th Two Oceans Marathon	4:54:10 h	740

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	31/5/1982	57th Comrades Marathon - Down Run	91,00	×4
✓ 2	1/6/1981	56th Comrades Marathon - Up Run	90,00	×4
✓ 3	31/5/1985	60th Comrades Marathon - Up Run	88,00	×4
✓ 4	6/4/1985	16th Two Oceans Marathon	56,00	×2
✓ 5	10/4/1982	13th Two Oceans Marathon	56,00	×2
✓ 6	18/4/1981	12th Two Oceans Marathon	56,00	×2
✓ 7	5/4/1980	11th Two Oceans Marathon	56,00	×2