James Davies

Born : 1981 Cat. M45 Ultrarunner since 2019

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

40,3%

Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 1 033; Σ finishers = 2 561. 1 033 / 2 561 × 100 = 40.34%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed23

Km — ultra races1 585 km

> 100 km2

> 160 km1

Longest race160,9 km

28th Massanutten Mountain Trails 100 Mile — 14/5/2022

Km per year (ultra races)

391

2022

298

2023

2024

100

2025

2026

Race types (share of distance)

Road3,2%

Trail96,8%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 30

🏅 Top 3 M1

Longest winning streak0

Current streak0

Records

50 km5h08'05 100 km12h45'41 50 mi10h40'04 100 mi31h09'41

HISTORY

23 race(s)

Date		Race	Perf.	Rk
2025
22.03	100km	7th Blackbeard’s Revenge 100 km Race	12:45:41 h	8
2024
13.04	50km	12th Singletrack Maniac 50k Trail Run	5:40:05 h	6
2023
09.12	100km	21st Hellgate 100 km	15:16:55 h	62
05.08	30mi	9th Jarmans Invitational Marathon	6:57:10 h	31
22.04	50km	23th Promise Land 50K++	6:49:52 h	83
18.03	50km	16th Terrapin Mountain 50 km Race	5:55:35 h	27
18.02	50km	28th Holiday Lake 50K++	5:16:49 h	30
2022
10.12	100km	20th Hellgate 100 km	16:22:02 h	78
05.11	50mi	40th Mountain Masochist 50 Mile Trail Run	10:40:04 h	39
14.05	100mi	28th Massanutten Mountain Trails 100 Mile	31:09:41 h	45
19.02	50km	27th Holiday Lake 50K++	5:21:28 h	37
2021
04.12	50km	2nd Tidewater Striders Dismal Swamp 50 km Race	5:08:05 h	6
06.11	13h	5th Midnight Maniac 13 Hour Endurance Run	95.273 km	4
18.09	50km	8th The Barkley Fall Classic	12:04:32 h	87
19.06	50km	9th Eastern Divide Ultra	7:32:17 h	139
27.03	74mi	9th Georgia Death Race	21:59:27 h	88
2020
20.09	50mi	5th Grayson Highlands 50 Mile Race	10:53:00 h	26
15.02	50km	25th Holiday Lake 50K++	5:46:08 h	86
2019
12.10	50km	4th High Bridge Ultra 50K	5:35:24 h	42
10.08	50km	8th Wildcat Ridge Romp 50 km	7:59:11 h	26
03.08	50km	11th Dahlgren Heritage Rail Trail 50K	5:57:32 h	32
15.06	50km	8th Eastern Divide Ultra	6:07:25 h	51
13.04	50km	7th Singletrack Maniac 50k Trail Run	6:10:29 h	23

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	14/5/2022	28th Massanutten Mountain Trails 100 Mile	160,93	×4
✓ 2	27/3/2021	9th Georgia Death Race	119,09	×3
✓ 3	22/3/2025	7th Blackbeard’s Revenge 100 km Race	100,00	×2
✓ 4	9/12/2023	21st Hellgate 100 km	100,00	×2
✓ 5	10/12/2022	20th Hellgate 100 km	100,00	×2
✓ 6	6/11/2021	5th Midnight Maniac 13 Hour Endurance Run	95,27	×2
✓ 7	5/11/2022	40th Mountain Masochist 50 Mile Trail Run	80,47	×2
✓ 8	20/9/2020	5th Grayson Highlands 50 Mile Race	80,47	×2
✓ 9	13/4/2024	12th Singletrack Maniac 50k Trail Run	50,00	×1
✓ 10	22/4/2023	23th Promise Land 50K++	50,00	×1
✓ 11	18/3/2023	16th Terrapin Mountain 50 km Race	50,00	×1
✓ 12	18/2/2023	28th Holiday Lake 50K++	50,00	×1
✓ 13	19/2/2022	27th Holiday Lake 50K++	50,00	×1
✓ 14	4/12/2021	2nd Tidewater Striders Dismal Swamp 50 km Race	50,00	×1
✓ 15	18/9/2021	8th The Barkley Fall Classic	50,00	×1
✓ 16	19/6/2021	9th Eastern Divide Ultra	50,00	×1
✓ 17	15/2/2020	25th Holiday Lake 50K++	50,00	×1
✓ 18	12/10/2019	4th High Bridge Ultra 50K	50,00	×1
✓ 19	10/8/2019	8th Wildcat Ridge Romp 50 km	50,00	×1
✓ 20	3/8/2019	11th Dahlgren Heritage Rail Trail 50K	50,00	×1
✓ 21	15/6/2019	8th Eastern Divide Ultra	50,00	×1
✓ 22	13/4/2019	7th Singletrack Maniac 50k Trail Run	50,00	×1
✓ 23	5/8/2023	9th Jarmans Invitational Marathon	48,28	×1