Derek MacKessy
ID 547206
Born : 1980 Cat. M45 Ultrarunner since 2014 IRL
43
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
2
Countries visited ?GBRUnited KingdomIRLIreland
60,5%
Rank quotient ?This runner's calculation uses 43 eligible race(s): Σ(rank − 1) = 1 134; Σ finishers = 1 874. 1 134 / 1 874 × 100 = 60.51%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed43
Km — ultra races4 593 km
> 100 km20
> 160 km15
> 24h12
> 48h2
Longest race193,0 km
The Kerry Way Ultra — 3/9/2021

Km per year (ultra races)

224
2 races
2022
570
6 races
2023
218
2 races
2024
2025
2026

Race types (share of distance)

Road89,7%
Trail10,3%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 km4h19'29100 km13h36'53100 mi21h41'1624 h169,31 km48 h165,20 km

HISTORY

43 race(s)
DateRacePerf.Rk
2024
20.04 53km IRLRoyal Canal Run Longford Ultra 5:06:03 h13
08.03 48h GBRTrack 48 - 48h 165.200 km7
2023
03.06 39.3mi IRLTullaroan Ultra 8:32:50 h8
20.05 50km IRLKerry Ultra Marathon 50K 6:16:47 h32
06.05 24h IRLWexford Festival of Running 24h 115.308 km13
23.04 63.5km IRL18th Connemara Int. Ultramarathon 8:27:01 h149
01.04 24h GBRThe Florida 24 Hour Challenge 24h 112.700 km6
10.03 48h GBRTrack 48 Endurance Festival of Running 48h 165.200 km7
2022
18.06 24h GBR12th Belfast 24-Hour Int. Road Race 84.218 km61
07.05 24h IRLWexford Festival of Running 24h 140.070 km10
2021
03.09 193km IRLThe Kerry Way Ultra 38:52:41 h81
14.08 100mi IRLConnemara 100 23:40:57 h27
2020
08.08 100mi IRLConnemara 100 27:26:28 h33
2019
21.09 24h IRLListowel Endurance Festival 24h 161.136 km6
17.08 105mi IRLQuadrathon Int. Festival - HERO 26:19:37 h8
10.08 100mi IRLConnemara 100 23:23:31 h16
08.06 100km IRLPortumna 100km Ultramarathon 13:36:53 h19
01.06 39.3mi IRLTullaroan Ultra 7:55:46 h10
2018
18.11 30mi IRLEddie Murphy Memorial 30mi 5:13:27 h11
22.09 24h IRLListowel Endurance Festival 24h 102.948 km21
11.08 100mi IRLConnemara 100 27:32:52 h24
09.06 50km IRLPortumna 50km Ultramarathon 5:54:31 h58
02.06 39.3mi IRLTullaroan Ultra 7:57:44 h15
30.03 169km GBRBelfast 2 Dublin Ultra 28:46:00 h24
2017
23.09 24h IRLListowel Endurance Festival 24h 134.280 km18
12.08 100mi IRLConnemara 100 21:41:16 h7
01.07 24h GBR8th Energia 24-Hour Race 169.305 km29
10.06 50km IRLPortumna 50km Ultramarathon 5:09:06 h35
03.06 39.3mi IRLTullaroan Ultra 6:57:51 h11
2016
24.09 24h IRL1st Kerry Endurance Race 24h 161.739 km9
06.08 100km IRLThe Tralee 100K Ultra Marathon 13:45:03 h31
25.06 24h GBR7th Energia 24-Hour Race 161.994 km39
11.06 50km IRLPortumna 50km Ultramarathon 6:20:06 h69
25.03 100mi IRL2nd Vartry 100 Mile 26:20:00 h21
2015
15.11 30mi IRLEddie Murphy Memorial 30mi 4:53:35 h12
01.08 100km IRLThe Tralee 100K Ultra Marathon 14:29:09 h31
25.07 100km IRL3rd Waterfront Ultra Marathon 100K 14:11:59 h17
13.06 50km IRLPortumna 50km Ultramarathon 4:19:29 h13
04.04 50km IRL1st Vartry 50 km 5:41:29 h30
2014
16.11 30mi IRLEddie Murphy Memorial 30mi 4:59:53 h14
02.08 100km IRLThe Tralee 100K Ultra Marathon 13:58:25 h26
19.07 36mi IRL2nd Waterfront Ultra Marathon 7:00:36 h38
14.06 50km IRLPortumna 50km Ultramarathon 5:24:20 h68