David Billett

Born : 1970 Cat. M55 Ultrarunner since 1999

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

120

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 ?

Australia

New Zealand

30,8%

Rank quotient ?This runner's calculation uses 80 eligible race(s): Σ(rank − 1) = 1 123; Σ finishers = 3 648. 1 123 / 3 648 × 100 = 30.78%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed80

Km — ultra races18 621 km

> 100 km63

> 160 km60

> 200 km31

> 24h54

> 48h23

Longest race680,8 km

Adelaide 6 day - 6 Day — 29/9/2019

Km per year (ultra races)

1 554

2022

1 147

2023

1 137

2024

1 463

2025

1 058

2026

Race types (share of distance)

Road79,9%

Trail12,2%

Elim.3,4%

Ult.Walk4,4%

Wins & podiums (ultra)

🏆 Win4

🏆 Win M6

🏅 Top 321

🏅 Top 3 M34

Longest winning streak1

Current streak0

Records

100 km10h50'40 6 h56,52 km 12 h91,42 km 24 h192,67 km 48 h323,64 km 6 d680,81 km Backyard44 loops

HISTORY

102 race(s) · 45 split(s) nested

Date		Race	Perf.	Rk
2026
15.05	Backyard Ultra	5th No Time to Die Frontyard Ultra	295.064 km	3 🥉
30.03	6d	NZ 6 Day Ultra Marathon - 6 Day	598.578 km	5
21.03	24h	28th Sri Chinmoy 24 Hour Track Race, Auckland	163.902 km	8
2025
14.11	240km	Coast to Kosci Ultramarathon	37:25:00 h	18
29.09	6d	NZ 6 Day Ultra Marathon - 6 Day	560.669 km	8
29.09	48h	NZ 6 Day Ultra Marathon - 6 Day - 48h Split	208.102 km	9
29.09	72h	NZ 6 Day Ultra Marathon - 6 Day - 72h Split	289.656 km	9
29.09	500km	NZ 6 Day Ultra Marathon - 6 Day - 500km Split	5d 09:25:27 h	8
07.06	24h	Adelaide 24 hour race	163.437 km	1 🏆
16.05	Backyard Ultra	4th No Time to Die Frontyard Ultra	241.416 km (36h)	4
21.03	48h	8th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race	257.128 km	6
2024
09.11	24h	SA Track Ultra 24h	183.709 km	4
29.09	6d	Australian 6 day - 6 Day	625.018 km	6
29.09	12h	Australian 6 day - 6 Day - 12h Split	86.986 km	8
29.09	100mi	Australian 6 day - 6 Day - 100mi Split	23:41:56 h	4
29.09	200km	Australian 6 day - 6 Day - 200km Split	37:15:17 h	5
29.09	48h	Australian 6 day - 6 Day - 48h Split	221.030 km	9
29.09	72h	Australian 6 day - 6 Day - 72h Split	317.998 km	7
29.09	500km	Australian 6 day - 6 Day - 500km Spilt	4d 18:49:31 h	6
09.06	24h	Adelaide 24 hour race	163.559 km	8
11.05	24h	26th Sri Chinmoy 24 Hour Track Race, Auckland	164.406 km	8
2023
01.10	6d	Australian 6 day - 6 Day	553.318 km	7
01.10	24h	Australian 6 day - 6 Day - 24h Split	109.764 km	19
01.10	100mi	Australian 6 day - 6 Day - 100mi Split	35:30:23 h	14
01.10	48h	Australian 6 day - 6 Day - 48h Split	199.570 km	13
01.10	200km	Australian 6 day - 6 Day - 200km Split	2d 00:03:45 h	14
01.10	72h	Australian 6 day - 6 Day - 72h Split	285.100 km	11
01.10	500km	Australian 6 day - 6 Day - 500km Split	5d 12:40:43 h	11
11.06	24h	Adelaide 24 hour race	161.406 km	5
15.04	24h	36th 24h Coburg Harriers Carnival - Walking	165.799 km	1 🏆
24.03	48h	7th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race	266.705 km	4
24.03	100mi	7th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race - 100mi Split	23:51:18 h	6
24.03	24h	7th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race - 24h Split	161.600 km	5
24.03	200km	7th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race - 200km Split	33:38:09 h	6
2022
02.12	240km	Coast to Kosci Ultramarathon	38:36:26 h	26
02.10	6d	Adelaide 6 day - 6 Day	607.921 km	2 🥈
02.10	200km	Adelaide 6 day - 6 Day - 200km split	29:17:54 h	1 🏆
02.10	48h	Adelaide 6 day - 6 Day - 48h split	263.718 km	2 🥈
02.10	500km	Adelaide 6 day - 6 Day - 500km split	4d 20:29:53 h	4
02.07	24h	Adelaide 24 hour race	165.593 km	2 🥈
09.04	24h	35th 24h Coburg Harriers Carnival - Walking	170.137 km	2 🥈
25.03	48h	6th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race	250.316 km	9
25.03	100mi	6th Sri Chinmoy 48 Hour Track Festival Canberra - 48hr Race - 100mi split	23:24:44 h	9
25.03	24h	6th Sri Chinmoy 48 Hour Track Festival Canberra - 48hr Race - 24h split	164.000 km	8
06.02	60km	City Run 60km	7:36:45 h	3 🥉
09.01	60km	Sun Run Ultra 60km	6:58:52 h	3 🥉
2021
10.10	64km	Western Coastal Marathon 64km	7:56:04 h	2 🥈
26.09	6d	Adelaide 6 day - 6 Day	609.156 km	1 🏆
10.07	24h	11th Adelaide 24 hour race	181.177 km	2 🥈
06.06	64km	LeFevre Coastal Marathon 64 km	5:59:34 h	1 🏆
2020
03.10	12h	11th Adelaide 12 hour race	91.416 km	6
25.01	100km	5th SA Track 100 Championship	11:25:14 h	6
2019
17.11	14h	Seaside Coastal ULTRA ONE	105.680 km	2 🥈
02.11	60km	Portland 3 Bays Trail Ultra	7:47:09 h	32
29.09	6d	Adelaide 6 day - 6 Day	680.810 km	3 🥉
29.09	24h	Adelaide 6 day - 6 Day - 24h split	161.981 km	3 🥉
29.09	48h	Adelaide 6 day - 6 Day - 48h split	256.710 km	3 🥉
13.07	12h	9th Adelaide 24 hour race - 12h split	100.800 km	6
13.07	100km	9th Adelaide 24 hour race - 100km split	11:54:38 h	6
13.07	100mi	9th Adelaide 24 hour race - 100mi split	19:58:54 h	4
13.07	24h	9th Adelaide 24 hour race	192.674 km	4
15.03	48h	4th Canberra 48hr Race	275.673 km	8
26.01	100km	4th SA Track 100 Championship	11:45:25 h	7
2018
30.09	6d	Adelaide 6 day - 6 Days	677.945 km	3 🥉
23.09	56km	12th Yurrebilla Trail 56km Ultra	7:51:17 h	159
14.07	24h	8th Adelaide 24 hour race	176.320 km	8
16.03	50km	3rd Canberra 48hr Race - 50km Split	5:59:37 h	13
16.03	100km	3rd Canberra 48hr Race - 100km Split	13:13:36 h	7
16.03	100mi	3rd Canberra 48hr Race - 100mi Split	23:30:34 h	7
16.03	48h	3rd Canberra 48hr	284.475 km	5
27.01	100km	3rd SA Track 100 Championship	12:56:57 h	4
2017
08.12	240km	Coast to Kosci Ultramarathon	33:42:10 h	12
08.07	24h	7th Adelaide 24 hour race	190.901 km	4
08.07	12h	7th Adelaide 24 hour race - 12h Split	101.200 km	5
17.03	50km	2nd Canberra 48hr Race - 50km Split	5:48:12 h	10
17.03	100km	2nd Canberra 48hr Race - 100km Split	12:06:57 h	8
17.03	100mi	2nd Canberra 48hr Race - 100mi Split	21:37:26 h	6
17.03	6h	2nd Canberra 48hr Race - 6h Split	51.600 km	9
17.03	12h	2nd Canberra 48hr Race - 12h Split	98.800 km	8
17.03	24h	2nd Canberra 48hr Race - 24h Split	170.400 km	6
17.03	48h	2nd Canberra 48hr Race	323.643 km	2 🥈
28.01	100km	2nd SA Track 100 Championship	10:50:40 h	4
2016
09.12	240km	Coast to Kosci Ultramarathon	34:48:36 h	20
25.09	56km	10th Yurrebilla Trail 56km Ultra	7:50:55 h	205
09.07	24h	6th Adelaide 24 hour race	182.486 km	5
09.07	12h	6th Adelaide 24 hour race - 12h Split	99.000 km	7
2015
11.12	240km	Coast to Kosci Ultramarathon	45:15:17 h	40
08.10	56km	9th Yurrebilla Trail 56km Ultra	8:04:21 h	165
11.07	24h	5th Adelaide 24 hour race	163.663 km	6
2014
29.09	6d	Adelaide 6-Day ultra Marathon	632.281 km	3 🥉
29.09	24h	Adelaide 6-Day ultra Marathon - 24h Split	141.250 km	4
29.09	48h	Adelaide 6-Day ultra Marathon - 48h Split	242.950 km	4
12.07	24h	4th Adelaide 24 hour race	173.062 km	11
2013
06.12	211km	Coast to Kosci Ultramarathon - Inclement Weather Finish	36:06:19 h	34
22.09	56km	7th Yurrebilla Trail 56km Ultra	7:23:03 h	78
14.09	24h	29th Australian Centurions 24 Hour walk	166.272 km	4
14.09	100mi	29th Australian Centurions 24 Hour walk - 100mi Split	23:06:59 h	4
13.07	24h	3rd Adelaide 24 hour race	182.603 km	4
2012
14.07	24h	2nd Adelaide 24 hour race	170.731 km	4
2011
09.12	240km	Coast to Kosci Ultramarathon	43:39:00 h	32
02.10	56km	5th Yurrebilla Trail 56km Ultra	6:44:38 h	34
16.07	24h	1st Adelaide 24 hour race	163.949 km	4
2008
12.12	222km	Coast to Kosci Ultramarathon	42:41:10 h	19
04.10	24h	25th Sri Chinmoy 24 Hour Festival of Running	162.246 km	8
29.08	24h	Caboolture Historical Village 48h - 24h Split	149.500 km	4
29.08	48h	Caboolture Historical Village 48h	270.098 km	3 🥉
2007
29.09	24h	24th Sri Chinmoy 24 Hour Festival of Running	182.658 km	4
21.04	24h	20th 24h Coburg Harriers Carnival	165.358 km	8
2006
30.09	100km	23rd Sri Chinmoy 24 Hour Festival of Running - 100km Split	13:48:07 h	9
30.09	50km	23rd Sri Chinmoy 24 Hour Festival of Running - 50km Split	6:28:54 h	11
30.09	24h	23rd Sri Chinmoy 24 Hour Festival of Running	164.417 km	7
11.08	100mi	Gold Coast 48 Hours Track Race - 100mi Split	34:41:00 h	10
11.08	100km	Gold Coast 24 Hours Track Race - 100km Split	17:22:00 h	14
11.08	12h	Gold Coast 48 Hours Track Race - 12h Split	70.000 km	15
11.08	24h	Gold Coast 48 Hours Track Race - 24h Split	114.000 km	6
11.08	48h	Gold Coast 48 Hours Track Race	227.515 km	6
22.04	24h	19th 24h Coburg Harriers Carnival - Walking	152.992 km	6
2005
20.11	6d	20th Cliff Young Six-Days-Colac	602.400 km	9
20.11	24h	20th Cliff Young Six-Days-Colac - 24h Split	108.000 km	22
20.11	48h	20th Cliff Young Six-Days-Colac - 48h Split	197.200 km	20
15.10	24h	22nd Sri Chinmoy 24 Hour Festival of Running	172.747 km	3 🥉
15.10	50km	22nd Sri Chinmoy 24 Hour Festival of Running - 50km Split	6:33:20 h	9
15.10	50mi	22nd Sri Chinmoy 24 Hour Festival of Running - 50mi Split	10:43:04 h	3 🥉
15.10	100km	22nd Sri Chinmoy 24 Hour Festival of Running - 100km Split	13:27:18 h	5
15.10	100mi	22nd Sri Chinmoy 24 Hour Festival of Running - 100mi Split	22:30:17 h	3 🥉
16.04	100mi	18th 24h Coburg Harriers Carnival - Walking 100mi Split	23:52:27 h	3 🥉
16.04	24h	18th 24h Coburg Harriers Carnival - Walking	161.887 km	3 🥉
2004
21.11	6d	19th Six-Days-Colac	569.890 km	6
16.10	24h	21st Sri Chinmoy 24 Hour Festival of Running	166.938 km	6
16.10	50km	21st Sri Chinmoy 24 Hour Festival of Running - 50km Split	6:16:45 h	11
16.10	50mi	21st Sri Chinmoy 24 Hour Festival of Running - 50mi Split	10:34:30 h	10
16.10	100km	21st Sri Chinmoy 24 Hour Festival of Running - 100km Split	13:59:50 h	12
16.10	100mi	21st Sri Chinmoy 24 Hour Festival of Running - 100mi Split	23:30:00 h	9
20.08	48h	Gold Coast 48 Hours Track Race	263.670 km	4
17.04	24h	17th 24h Coburg Harriers Carnival	163.400 km	5
2003
16.11	24h	18th Six-Days-Colac - 24h Split	117.600 km	9
16.11	48h	18th Six-Days-Colac - 48h Split	186.000 km	11
16.11	6d	18th Six-Days-Colac	485.838 km	9
03.10	24h	20th Sri Chinmoy 24 Hour Festival of Running	163.779 km	5
03.10	50km	20th Sri Chinmoy 24 Hour Festival of Running - 50km Split	6:46:34 h	11
03.10	50mi	20th Sri Chinmoy 24 Hour Festival of Running - 50mi Split	10:54:40 h	8
03.10	100km	20th Sri Chinmoy 24 Hour Festival of Running - 100km Split	13:56:27 h	7
03.10	100mi	20th Sri Chinmoy 24 Hour Festival of Running - 100mi Split	23:44:53 h	5
23.02	100km	Sri Chinmoy 100 km Canberra	14:02:44 h	15
2002
19.10	24h	19th Sri Chinmoy 24 Hour Festival of Running	144.501 km	7
1999
23.10	6h	17th Sri Chinmoy 6 Hour Festival of Running	56.524 km	3 🥉
23.10	50km	17th Sri Chinmoy 6 Hour Festival of Running - 50km Split	5:19:43 h	3 🥉

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	29/9/2019	Adelaide 6 day - 6 Day	680,81	×5
✓ 2	30/9/2018	Adelaide 6 day - 6 Days	677,95	×5
✓ 3	29/9/2014	Adelaide 6-Day ultra Marathon	632,28	×5
✓ 4	29/9/2024	Australian 6 day - 6 Day	625,02	×5
✓ 5	26/9/2021	Adelaide 6 day - 6 Day	609,16	×5
✓ 6	2/10/2022	Adelaide 6 day - 6 Day	607,92	×5
✓ 7	20/11/2005	20th Cliff Young Six-Days-Colac	602,40	×5
✓ 8	30/3/2026	NZ 6 Day Ultra Marathon - 6 Day	598,58	×4
✓ 9	21/11/2004	19th Six-Days-Colac	569,89	×4
✓ 10	29/9/2025	NZ 6 Day Ultra Marathon - 6 Day	560,67	×4
✓ 11	1/10/2023	Australian 6 day - 6 Day	553,32	×4
✓ 12	16/11/2003	18th Six-Days-Colac	485,84	×4
✓ 13	17/3/2017	2nd Canberra 48hr Race	323,64	×2
✓ 14	15/5/2026	5th No Time to Die Frontyard Ultra	295,06	×2
✓ 15	16/3/2018	3rd Canberra 48hr	284,48	×2
✓ 16	15/3/2019	4th Canberra 48hr Race	275,67	×2
✓ 17	29/8/2008	Caboolture Historical Village 48h	270,10	×2
✓ 18	24/3/2023	7th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race	266,71	×2
✓ 19	20/8/2004	Gold Coast 48 Hours Track Race	263,67	×2
✓ 20	21/3/2025	8th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race	257,13	×2
✓ 21	25/3/2022	6th Sri Chinmoy 48 Hour Track Festival Canberra - 48h Race	250,32	×2
✓ 22	16/5/2025	4th No Time to Die Frontyard Ultra	241,42	×2
✓ 23	14/11/2025	Coast to Kosci Ultramarathon	240,00	×2
✓ 24	2/12/2022	Coast to Kosci Ultramarathon	240,00	×2
✓ 25	8/12/2017	Coast to Kosci Ultramarathon	240,00	×2
✓ 26	9/12/2016	Coast to Kosci Ultramarathon	240,00	×2
✓ 27	11/12/2015	Coast to Kosci Ultramarathon	240,00	×2
✓ 28	9/12/2011	Coast to Kosci Ultramarathon	240,00	×2
✓ 29	11/8/2006	Gold Coast 48 Hours Track Race	227,52	×1
✓ 30	12/12/2008	Coast to Kosci Ultramarathon	222,00	×1
✓ 31	6/12/2013	Coast to Kosci Ultramarathon - Inclement Weather Finish	211,00	×1
✓ 32	13/7/2019	9th Adelaide 24 hour race	192,67	×1
✓ 33	8/7/2017	7th Adelaide 24 hour race	190,90	×1
✓ 34	9/11/2024	SA Track Ultra 24h	183,71	×1
✓ 35	29/9/2007	24th Sri Chinmoy 24 Hour Festival of Running	182,66	×1
✓ 36	13/7/2013	3rd Adelaide 24 hour race	182,60	×1
✓ 37	9/7/2016	6th Adelaide 24 hour race	182,49	×1
✓ 38	10/7/2021	11th Adelaide 24 hour race	181,18	×1
✓ 39	14/7/2018	8th Adelaide 24 hour race	176,32	×1
✓ 40	12/7/2014	4th Adelaide 24 hour race	173,06	×1
✓ 41	15/10/2005	22nd Sri Chinmoy 24 Hour Festival of Running	172,75	×1
✓ 42	14/7/2012	2nd Adelaide 24 hour race	170,73	×1
✓ 43	9/4/2022	35th 24h Coburg Harriers Carnival - Walking	170,14	×1
✓ 44	16/10/2004	21st Sri Chinmoy 24 Hour Festival of Running	166,94	×1
✓ 45	14/9/2013	29th Australian Centurions 24 Hour walk	166,27	×1
✓ 46	15/4/2023	36th 24h Coburg Harriers Carnival - Walking	165,80	×1
✓ 47	2/7/2022	Adelaide 24 hour race	165,59	×1
✓ 48	21/4/2007	20th 24h Coburg Harriers Carnival	165,36	×1
✓ 49	30/9/2006	23rd Sri Chinmoy 24 Hour Festival of Running	164,42	×1
✓ 50	11/5/2024	26th Sri Chinmoy 24 Hour Track Race, Auckland	164,41	×1
✓ 51	16/7/2011	1st Adelaide 24 hour race	163,95	×1
✓ 52	21/3/2026	28th Sri Chinmoy 24 Hour Track Race, Auckland	163,90	×1
✓ 53	3/10/2003	20th Sri Chinmoy 24 Hour Festival of Running	163,78	×1
✓ 54	11/7/2015	5th Adelaide 24 hour race	163,66	×1
✓ 55	9/6/2024	Adelaide 24 hour race	163,56	×1
✓ 56	7/6/2025	Adelaide 24 hour race	163,44	×1
✓ 57	17/4/2004	17th 24h Coburg Harriers Carnival	163,40	×1
✓ 58	4/10/2008	25th Sri Chinmoy 24 Hour Festival of Running	162,25	×1
✓ 59	16/4/2005	18th 24h Coburg Harriers Carnival - Walking	161,89	×1
✓ 60	11/6/2023	Adelaide 24 hour race	161,41	×1
✓ 61	22/4/2006	19th 24h Coburg Harriers Carnival - Walking	152,99	×1
✓ 62	19/10/2002	19th Sri Chinmoy 24 Hour Festival of Running	144,50	×1
✓ 63	17/11/2019	Seaside Coastal ULTRA ONE	105,68	—
✓ 64	25/1/2020	5th SA Track 100 Championship	100,00	—
✓ 65	26/1/2019	4th SA Track 100 Championship	100,00	—
✓ 66	27/1/2018	3rd SA Track 100 Championship	100,00	—
✓ 67	28/1/2017	2nd SA Track 100 Championship	100,00	—
✓ 68	23/2/2003	Sri Chinmoy 100 km Canberra	100,00	—
✓ 69	3/10/2020	11th Adelaide 12 hour race	91,42	—
70	10/10/2021	Western Coastal Marathon 64km	64,00	—
71	6/6/2021	LeFevre Coastal Marathon 64 km	64,00	—
72	6/2/2022	City Run 60km	60,00	—
73	9/1/2022	Sun Run Ultra 60km	60,00	—
74	2/11/2019	Portland 3 Bays Trail Ultra	60,00	—
75	23/10/1999	17th Sri Chinmoy 6 Hour Festival of Running	56,52	—
76	23/9/2018	12th Yurrebilla Trail 56km Ultra	56,00	—
77	25/9/2016	10th Yurrebilla Trail 56km Ultra	56,00	—
78	8/10/2015	9th Yurrebilla Trail 56km Ultra	56,00	—
79	22/9/2013	7th Yurrebilla Trail 56km Ultra	56,00	—
80	2/10/2011	5th Yurrebilla Trail 56km Ultra	56,00	—