Ken Syring

Born : 1938 Cat. M85 Ultrarunner since 2003

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 ?

United States

60,0%

Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 364; Σ finishers = 607. 364 / 607 × 100 = 59.97%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed8

Km — ultra races781 km

> 100 km3

> 24h7

Longest race131,3 km

16th FANS 24 Hour Runs — 4/6/2005

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road100,0%

Records

12 h81,74 km 24 h131,27 km

HISTORY

8 race(s)

Date		Race	Perf.	Rk
2011
04.06	24h	22nd FANS 24 Hour Runs	80.612 km	59
2010
05.06	24h	21st FANS 24 Hour Runs	96.190 km	46
2009
06.06	24h	20th FANS 24 Hour Runs	80.612 km	72
2008
07.06	24h	19th FANS 24 Hour Runs	53.334 km	79
2007
02.06	24h	18th FANS 24 Hour Runs	131.270 km	40
2006
03.06	24h	17th FANS 24 Hour Runs	125.480 km	43
2005
04.06	24h	16th FANS 24 Hour Runs	131.274 km	25
2003
07.06	12h	14th FANS 12 Hour Run	81.738 km	8

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	4/6/2005	16th FANS 24 Hour Runs	131,27	×5
✓ 2	2/6/2007	18th FANS 24 Hour Runs	131,27	×5
✓ 3	3/6/2006	17th FANS 24 Hour Runs	125,48	×4
✓ 4	5/6/2010	21st FANS 24 Hour Runs	96,19	×3
✓ 5	7/6/2003	14th FANS 12 Hour Run	81,74	×3
✓ 6	4/6/2011	22nd FANS 24 Hour Runs	80,61	×3
✓ 7	6/6/2009	20th FANS 24 Hour Runs	80,61	×3
✓ 8	7/6/2008	19th FANS 24 Hour Runs	53,33	×2