Symon Grindlay
ID 95348
Born : 1975 Cat. M50 Ultrarunner since 2009 AUS
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
43
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
3
Countries visited ?AUSAustraliaNZLNew ZealandRSASouth Africa
69,5%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 28 220; Σ finishers = 40 608. 28 220 / 40 608 × 100 = 69.49%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races2 333 km
> 100 km5
> 160 km2
Longest race161,0 km
4th Ultra-Trail Kosciuszko by UTMB - Kosci Miler — 28/11/2025

Km per year (ultra races)

260
3 races
2022
283
3 races
2023
155
2 races
2024
311
3 races
2025
45
1 race
2026

Race types (share of distance)

Road11,9%
Trail88,1%

Records

50 km5h12'51100 km16h49'2450 mi11h59'24100 mi34h31'14

HISTORY

28 race(s)
DateRacePerf.Rk
2026
14.03 45km AUSSix Foot Track 6:45:38 h836
2025
28.11 161km AUS4th Ultra-Trail Kosciuszko by UTMB - Kosci Miler 34:31:14 h174
27.09 50km AUSLonely Mountain Ultra 50km 7:46:48 h73
19.07 100km AUSThe Guzzler Ultra 100km 22:30:00 h143
2024
29.06 110km AUSBrisbane Trail Ultra 110km 21:57:29 h29
09.03 45km AUSSix Foot Track 6:49:14 h811
2023
08.12 100km AUS2nd Ultra-Trail Kosciuszko by UTMB - Kosci 100 19:41:33 h306
14.10 50mi AUSLonely Mountain Ultra 50mi 13:34:54 h16
11.02 103km NZL14th Tarawera 100 km Ultramarathon 15:58:37 h344
2022
05.11 80km AUSBondi to Manly Ultra 11:59:24 h284
09.07 110km AUSBrisbane Trail Ultra 110km 23:56:00 h41
18.02 70km AUSSnowies Trail Run Festival 10:41:31 h62
2021
20.11 50mi AUSThe Great North Walk 50 Mile 14:54:17 h31
13.03 45km AUS37th Six Foot Track 6:25:58 h624
2020
22.11 50km AUS7th Stromlo Lightning Strike 50km 7:10:33 h193
2019
09.06 87km RSA94th Comrades Marathon - Up Run 11:27:36 h12066
14.04 50km AUS25th Canberra 50km Ultramarathon 5:12:51 h124
2018
10.06 90km RSA93rd Comrades Marathon - Down Run 10:58:31 h10499
15.04 50km AUS24th Canberra 50km Ultramarathon 5:21:43 h113
2016
10.09 100km AUSThe Great North Walk 100 km 20:11:00 h43
2015
12.09 100km AUSThe Great North Walk 100 km 20:05:00 h38
2012
19.05 100km AUS5th The North Face 100 Australia 19:34:27 h506
2011
30.07 60km AUSBush Capital Bush Marathon 6:50:57 h12
14.05 100km AUS4th The North Face 100 Australia 16:49:24 h248
2010
13.11 100mi AUSThe Great North Walk 100 Mile 35:42:00 h26
31.07 60km AUSBush Capital Bush Marathon 6:35:04 h20
2009
14.11 100km AUSThe Great North Walk 100 km 19:12:00 h17
08.03 45km AUS26th Six Foot Track 6:01:45 h569