Jack Miles
ID 834059
Born : 1985 Cat. M40 Ultrarunner since 2016 GBR
26
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
1
Countries visited ?GBRUnited Kingdom
21,5%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 1 284; Σ finishers = 5 972. 1 284 / 5 972 × 100 = 21.50%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed26
Km — ultra races2 248 km
> 100 km7
> 160 km2
> 24h1
Longest race165,8 km
14th North Downs Way 100 Mile Race — 3/8/2024

Km per year (ultra races)

274
3 races
2022
228
2 races
2023
351
4 races
2024
349
3 races
2025
68
1 race
2026

Race types (share of distance)

Trail95,2%
Elim.4,8%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

Records

50 km4h08'1850 mi8h39'43100 mi24h23'2624 h107,30 kmBackyard16 loops

HISTORY

26 race(s)
DateRacePerf.Rk
2026
25.04 42mi GBR15th Devil o' the Highlands Footrace 7:55:51 h73
2025
27.09 Backyard Ultra GBRThe Endless Garden 107.296 km (16h)6
14.06 100mi GBR13th South Downs Way 100 Mile Race 24:23:26 h210
12.04 50mi GBR13th South Downs Way 50 Mile Race 8:39:43 h34
2024
08.12 50km GBR7th Hurtwood 50k Endurance Trail Run 5:11:28 h37
03.08 103mi GBR14th North Downs Way 100 Mile Race 27:21:50 h78
27.04 53mi GBR16th Highland Fling Race 9:42:59 h57
02.03 31mi GBRHumanity Direct Amersham Ultra 4:26:43 h2 🥈
2023
17.06 153km GBR37th West Highland Way Race 21:55:59 h28
15.04 75km GBRUltra X Spring Trail Series 75km 8:57:13 h16
2022
27.08 86mi GBR18th Ridgeway Challenge 86 Mile Trail Run 20:47:13 h17
23.07 31mi GBRHumanity Direct Chiltern Challenge 4:47:36 h6
23.04 53mi GBR15th Highland Fling Race 9:43:06 h36
2021
09.10 56mi GBR11th Glasgow-Edinburgh Ultramarathon 9:47:03 h18
2020
19.09 61km GBRFox Ultra 5:35:37 h12
14.03 34.1mi GBRCoastal Trail Series - Sussex Ultra 5:34:38 h11
2019
30.11 72.2km GBRCoastal Trail Series - Dorset Ultra+ 9:11:53 h14
12.10 50km GBRKings Forest 50 km 4:08:18 h8
22.06 153km GBR35th West Highland Way Race 22:44:48 h64
27.04 53mi GBR14th Highland Fling Race 9:44:35 h77
16.03 34.1mi GBRCoastal Trail Series - Sussex Ultra 5:40:26 h18
2018
07.07 71mi GBR5th The Great Glen Ultra 14:20:00 h19
10.06 50km GBR5th Weald Challenge 5:51:55 h80
17.03 33.7mi GBRCoastal Trail Series - Sussex Ultra 6:17:18 h35
2017
02.12 33.3mi GBRCoastal Trail Series - Dorset Ultra 6:34:32 h37
2016
30.04 53mi GBR11th Highland Fling Race 53 Mile 11:51:41 h317