Layton Duer

Born : 1948 Cat. M75 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 ?

United States

33,9%

Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 365; Σ finishers = 4 031. 1 365 / 4 031 × 100 = 33.86%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed7

Km — ultra races350 km

Longest race50,0 km

19th Sunmart Texas Trails 50 km — 6/12/2008

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

50 km5h31'22

HISTORY

7 race(s)

Date		Race	Perf.	Rk
2008
06.12	50km	19th Sunmart Texas Trails 50 km	5:35:07 h	103
2007
08.12	50km	18th Sunmart Texas Trails 50 km	7:20:05 h	291
2006
09.12	50km	17th Sunmart Texas Trails 50 km	6:21:12 h	226
2005
03.12	50km	16th Sunmart Texas Trails 50 km	5:56:46 h	197
2004
04.12	50km	15th Sunmart Texas Trails 50 km	5:48:50 h	196
2002
07.12	50km	13th Sunmart Texas Trails 50 km	5:32:37 h	182
2001
01.12	50km	12th Sunmart Texas Trails 50 km	5:31:22 h	177

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	6/12/2008	19th Sunmart Texas Trails 50 km	50,00	×3
✓ 2	8/12/2007	18th Sunmart Texas Trails 50 km	50,00	×3
✓ 3	9/12/2006	17th Sunmart Texas Trails 50 km	50,00	×3
✓ 4	3/12/2005	16th Sunmart Texas Trails 50 km	50,00	×3
✓ 5	4/12/2004	15th Sunmart Texas Trails 50 km	50,00	×3
✓ 6	7/12/2002	13th Sunmart Texas Trails 50 km	50,00	×3
✓ 7	1/12/2001	12th Sunmart Texas Trails 50 km	50,00	×3