Jerzy Natkanski

Born : 1954 Cat. M70 Ultrarunner since 2001

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 ?

Poland

Switzerland

41,8%

Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 2 401; Σ finishers = 5 743. 2 401 / 5 743 × 100 = 41.81%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed7

Km — ultra races568 km

Longest race100,0 km

XXII Supermaraton 100km Kalisia — 28/10/2006

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road17,6%

Trail82,4%

Records

100 km11h25'40

HISTORY

7 race(s)

Date		Race	Perf.	Rk
2006
28.10	100km	XXII Supermaraton 100km Kalisia	11:25:40 h	53
29.07	78km	21. Swiss Alpine Marathon	9:56:54 h	531
2005
30.07	78km	20. Swiss Alpine Marathon	8:52:52 h	228
2004
31.07	78km	19. Swiss Alpine Marathon	8:58:08 h	235
2003
26.07	78km	18. Swiss Alpine Marathon	9:37:03 h	473
2002
27.07	78km	17. Swiss Alpine Marathon	9:28:51 h	389
2001
28.07	78km	16. Swiss Alpine Marathon	9:50:50 h	499

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	28/10/2006	XXII Supermaraton 100km Kalisia	100,00	×4
✓ 2	29/7/2006	21. Swiss Alpine Marathon	78,00	×3
✓ 3	30/7/2005	20. Swiss Alpine Marathon	78,00	×3
✓ 4	31/7/2004	19. Swiss Alpine Marathon	78,00	×3
✓ 5	26/7/2003	18. Swiss Alpine Marathon	78,00	×3
✓ 6	27/7/2002	17. Swiss Alpine Marathon	78,00	×3
✓ 7	28/7/2001	16. Swiss Alpine Marathon	78,00	×3