Mary Flinders

Born : 1977 Cat. W45 Ultrarunner since 2014

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 ?

Cambodia

Canada

Hong Kong

Japan

New Zealand

Taiwan

United States

55,7%

Rank quotient ?This runner's calculation uses 83 eligible race(s): Σ(rank − 1) = 7 859; Σ finishers = 14 115. 7 859 / 14 115 × 100 = 55.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed84

Km — ultra races6 149 km

> 100 km10

> 160 km6

> 24h1

Longest race185,1 km

1st Utah 115 — 16/5/2025

Km per year (ultra races)

694

2022

536

2023

264

2024

745

2025

149

2026

Race types (share of distance)

Road1,6%

Trail95,2%

Stage2,1%

Elim.1,0%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F0

🏅 Top 30

🏅 Top 3 F2

Longest winning streak0

Current streak0

Records

50 km5h50'09 100 km14h54'17 50 mi10h49'15 100 mi24h06'13 Backyard9 loops

HISTORY

83 race(s)

Date		Race	Perf.	Rk
2026
17.05	50km	10th Tillamook Burn Trail Run 50 km	9:06:25 h	69
11.04	98.9km	12th Gorge Waterfalls 100k	15:47:28 h	232
2025
01.11	50km	12th Silver Falls Trail Run	7:39:44 h	148
20.09	50km	4th Mammoth Trail Fest	8:03:01 h	312
16.08	100km	7th Olympic Mountains 100 km Race	20:07:32 h	32
25.07	50km	18th Speedgoat 50k	12:27:43 h	507
16.05	115mi	1st Utah 115	37:14:18 h	5
12.04	60km	14th The Zion 60 km Run	9:27:24 h	58
15.03	50km	31st Chuckanut 50K	7:10:29 h	469
08.03	50km	5th Siuslaw Dunes 50km Trail Race	7:56:57 h	63
08.02	100km	12th Black Canyon Trail 100 km Run	15:25:07 h	433
18.01	50km	21st Capitol Peak MegaFatAss	6:28:44 h	52
2024
17.08	50km	8th Backcountry Rise 50 km Race	8:38:33 h	76
09.08	40mi	8th Bigfoot 40 Mile Race	13:06:54 h	26
20.04	50km	14th Yakima Skyline Rim 50k	10:20:23 h	59
10.02	99.9km	11th Black Canyon Trail 100 km Run	14:54:17 h	343
2023
12.11	50km	7th Run the Rock 50 km	6:54:11 h	86
07.10	50km	22nd Baker Lake 50K Ultra Trail Run	6:49:22 h	55
26.08	100mi	3rd Oregon Cascades 100 Mile Race	28:13:00 h	81
11.08	40mi	7th Bigfoot 40 Mile Race	11:47:24 h	38
29.07	50mi	31th White River 50 Mile Endurance Run	13:38:23 h	51
11.03	50mi	9th Antelope Canyon 50 Mile Race	12:06:46 h	76
18.02	50km	5th Run Forest Run 50k Race	7:42:00 h	27
2022
10.12	50km	20th Pigtails Run 50K	6:17:37 h	19
19.11	50km	2nd Cape Mountain 50 km Race	7:10:25 h	39
29.10	159.2km	20th Javelina Jundred 100 Mile Endurance Run	24:06:13 h	162
01.10	50km	21st Baker Lake 50K Ultra Trail Run	7:32:59 h	56
13.08	40mi	6th Bigfoot 40 Mile Race	11:56:10 h	33
30.07	70km	8th Tushars 70km Mountain Runs	15:47:10 h	51
14.05	50km	9th Smith Rock Ascent 50K	6:40:43 h	132
09.04	50km	11th The Zion 50 km Run	6:03:44 h	62
19.03	50km	28th Chuckanut 50K	6:23:45 h	258
19.02	50km	4th Run Forest Run 50k Race	7:37:24 h	32
22.01	50km	18th Capitol Peak MegaFatAss	6:31:02 h	42
2021
28.08	100mi	23rd Cascade Crest Classic 100 Mile	31:32:45 h	77
24.07	50km	6th Needles 50k	10:37:00 h	40
17.07	50km	5th Backcountry Rise 50 km Race	7:54:26 h	52
22.05	50km	5th Dirty Turtle 50k	8:13:00 h	31
10.04	100km	10th The Zion 100 km Run	15:10:05 h	58
2020
10.10	50mi	3rd Old Cascadia 50 Mile Race	16:46:56 h	53
11.07	55km	7th Beaverhead 55K Endurance Run	10:23:16 h	76
2019
14.12	50km	17th Pigtails Run 50K	5:50:09 h	29
16.11	50km	10th Grand Ridge 50 km Trail Run	7:50:35 h	36
27.10	50km	9th Cougar Mountain Trail Run	8:09:28 h	44
12.10	50km	10th Defiance 50k	6:28:55 h	34
28.09	50mi	1st The Cascade Super 50 Mile Ultra Race	10:49:15 h	36
21.09	100mi	7th Mountain Lakes 100	28:01:08 h	89
07.09	50km	3rd Backcountry Rise 50 km Race	9:45:55 h	123
31.08	Backyard Ultra	1st Roots Rock Around the Clock Backyard Ultra	62.764 km	19
03.08	50km	1st Tiger Peak Challenge	9:11:16 h	16
27.07	50km	2nd Wy'east Howl 50km Race	8:52:09 h	87
27.04	50mi	4th Tillamook Burn Trail Run 50 Mile	14:14:13 h	100
29.03	50mi	9th Badger Mountain 50 Mile Challenge	11:44:21 h	70
09.03	50mi	6th Antelope Canyon 50 Mile Race	11:30:24 h	64
02.03	50km	2nd Wallace Falls Trail Run 50km	8:37:22 h	18
23.02	50km	12th Lord Hill Trail Run	8:49:17 h	19
09.02	50km	21th Pemberton Trail 50 km	5:52:04 h	34
12.01	50km	24th Bridle Trails Winter Running Festival	6:10:19 h	55
2018
08.12	50km	8th Deception Pass 50 km	6:21:43 h	128
08.09	100mi	9th Pine to Palm 100 Mile Endurance Run	32:54:41 h	130
19.08	50km	7th Squamish 50km	9:44:04 h	251
18.08	50mi	7th Squamish 50mi	13:28:43 h	218
18.08	130km/2stages	7th Squamish 50-50	23:12:47 h	63
10.08	100km	2nd Bigfoot 100k Race	23:08:23 h	28
28.07	50mi	37th Minnesota Voyageur Trail 50 Mile Ultra	10:49:53 h	142
09.06	50km	1st Fragrance Lake 50km Race	8:08:17 h	22
12.05	50km	2nd Dirty Turtle 50k	8:15:56 h	12
30.03	50km	8th Badger Mountain 50 km Challenge	7:05:36 h	29
03.02	50km	13th Orcas Island 50k	8:21:34 h	153
07.01	100km	18th Bandera 100 km Endurance Run	15:29:03 h	115
2017
09.12	50km	7th Deception Pass 50 km	7:13:53 h	145
02.12	100km	2nd Devil Dog Ultra 100 km Race	15:35:39 h	28
18.11	100mi	9th The Chimera 100 Mile Mountain Race	32:13:43 h	29
04.11	50km	4th Silver Falls Trail Run	6:26:28 h	98
19.08	50mi	6th Squamish 50mi	14:10:56 h	200
27.05	50km	3rd The Beast Trail 50km	16:02:54 h	56
10.03	100km	6th TransLantau 100 Ultra Trail	21:49:41 h	136
21.01	64km	2nd Ultra Trail d'Angkor 64km	8:30:45 h	21
2016
19.11	100km	1st Formosa Trail 100km	26:41:42 h	43
06.08	100km	15th Katcina Mosa 100K Mountain Run	18:58:29 h	35
06.02	102km	8th Tarawera 100 km Ultramarathon	14:22:50 h	155
2015
22.09	110km	7th Shinetsu Five Mountains Trail 110km	18:22:36 h	233
2014
02.08	100km	13th Katcina Mosa 100K Mountain Run	17:53:06 h	28

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	16/5/2025	1st Utah 115	185,07	×3
✓ 2	26/8/2023	3rd Oregon Cascades 100 Mile Race	160,93	×3
✓ 3	28/8/2021	23rd Cascade Crest Classic 100 Mile	160,93	×3
✓ 4	21/9/2019	7th Mountain Lakes 100	160,93	×3
✓ 5	8/9/2018	9th Pine to Palm 100 Mile Endurance Run	160,93	×3
✓ 6	18/11/2017	9th The Chimera 100 Mile Mountain Race	160,93	×3
✓ 7	29/10/2022	20th Javelina Jundred 100 Mile Endurance Run	159,20	×3
✓ 8	18/8/2018	7th Squamish 50-50	130,00	×2
✓ 9	22/9/2015	7th Shinetsu Five Mountains Trail 110km	110,00	×2
✓ 10	6/2/2016	8th Tarawera 100 km Ultramarathon	102,00	×1
✓ 11	16/8/2025	7th Olympic Mountains 100 km Race	100,00	×1
✓ 12	8/2/2025	12th Black Canyon Trail 100 km Run	100,00	×1
✓ 13	10/4/2021	10th The Zion 100 km Run	100,00	×1
✓ 14	10/8/2018	2nd Bigfoot 100k Race	100,00	×1
✓ 15	7/1/2018	18th Bandera 100 km Endurance Run	100,00	×1
✓ 16	2/12/2017	2nd Devil Dog Ultra 100 km Race	100,00	×1
✓ 17	10/3/2017	6th TransLantau 100 Ultra Trail	100,00	×1
✓ 18	19/11/2016	1st Formosa Trail 100km	100,00	×1
✓ 19	6/8/2016	15th Katcina Mosa 100K Mountain Run	100,00	×1
✓ 20	2/8/2014	13th Katcina Mosa 100K Mountain Run	100,00	×1
✓ 21	10/2/2024	11th Black Canyon Trail 100 km Run	99,90	×1
✓ 22	11/4/2026	12th Gorge Waterfalls 100k	98,90	×1
✓ 23	29/7/2023	31th White River 50 Mile Endurance Run	80,47	×1
✓ 24	11/3/2023	9th Antelope Canyon 50 Mile Race	80,47	×1
✓ 25	10/10/2020	3rd Old Cascadia 50 Mile Race	80,47	×1
✓ 26	28/9/2019	1st The Cascade Super 50 Mile Ultra Race	80,47	×1
✓ 27	27/4/2019	4th Tillamook Burn Trail Run 50 Mile	80,47	×1
✓ 28	29/3/2019	9th Badger Mountain 50 Mile Challenge	80,47	×1
✓ 29	9/3/2019	6th Antelope Canyon 50 Mile Race	80,47	×1
✓ 30	28/7/2018	37th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 31	19/8/2017	6th Squamish 50mi	80,47	×1
✓ 32	30/7/2022	8th Tushars 70km Mountain Runs	70,00	×1
✓ 33	9/8/2024	8th Bigfoot 40 Mile Race	64,37	×1
✓ 34	11/8/2023	7th Bigfoot 40 Mile Race	64,37	×1
✓ 35	13/8/2022	6th Bigfoot 40 Mile Race	64,37	×1
✓ 36	21/1/2017	2nd Ultra Trail d'Angkor 64km	64,00	×1
✓ 37	31/8/2019	1st Roots Rock Around the Clock Backyard Ultra	62,76	×1
✓ 38	12/4/2025	14th The Zion 60 km Run	60,00	×1
✓ 39	11/7/2020	7th Beaverhead 55K Endurance Run	55,00	×1
✓ 40	17/5/2026	10th Tillamook Burn Trail Run 50 km	50,00	—
✓ 41	1/11/2025	12th Silver Falls Trail Run	50,00	—
✓ 42	20/9/2025	4th Mammoth Trail Fest	50,00	—
✓ 43	25/7/2025	18th Speedgoat 50k	50,00	—
✓ 44	15/3/2025	31st Chuckanut 50K	50,00	—
✓ 45	8/3/2025	5th Siuslaw Dunes 50km Trail Race	50,00	—
✓ 46	18/1/2025	21st Capitol Peak MegaFatAss	50,00	—
✓ 47	17/8/2024	8th Backcountry Rise 50 km Race	50,00	—
✓ 48	20/4/2024	14th Yakima Skyline Rim 50k	50,00	—
✓ 49	12/11/2023	7th Run the Rock 50 km	50,00	—
✓ 50	7/10/2023	22nd Baker Lake 50K Ultra Trail Run	50,00	—
51	18/2/2023	5th Run Forest Run 50k Race	50,00	—
52	10/12/2022	20th Pigtails Run 50K	50,00	—
53	19/11/2022	2nd Cape Mountain 50 km Race	50,00	—
54	1/10/2022	21st Baker Lake 50K Ultra Trail Run	50,00	—
55	14/5/2022	9th Smith Rock Ascent 50K	50,00	—
56	9/4/2022	11th The Zion 50 km Run	50,00	—
57	19/3/2022	28th Chuckanut 50K	50,00	—
58	19/2/2022	4th Run Forest Run 50k Race	50,00	—
59	22/1/2022	18th Capitol Peak MegaFatAss	50,00	—
60	24/7/2021	6th Needles 50k	50,00	—
61	17/7/2021	5th Backcountry Rise 50 km Race	50,00	—
62	22/5/2021	5th Dirty Turtle 50k	50,00	—
63	14/12/2019	17th Pigtails Run 50K	50,00	—
64	16/11/2019	10th Grand Ridge 50 km Trail Run	50,00	—
65	27/10/2019	9th Cougar Mountain Trail Run	50,00	—
66	12/10/2019	10th Defiance 50k	50,00	—
67	7/9/2019	3rd Backcountry Rise 50 km Race	50,00	—
68	3/8/2019	1st Tiger Peak Challenge	50,00	—
69	27/7/2019	2nd Wy'east Howl 50km Race	50,00	—
70	2/3/2019	2nd Wallace Falls Trail Run 50km	50,00	—
71	23/2/2019	12th Lord Hill Trail Run	50,00	—
72	9/2/2019	21th Pemberton Trail 50 km	50,00	—
73	12/1/2019	24th Bridle Trails Winter Running Festival	50,00	—
74	8/12/2018	8th Deception Pass 50 km	50,00	—
75	19/8/2018	7th Squamish 50km	50,00	—
76	9/6/2018	1st Fragrance Lake 50km Race	50,00	—
77	12/5/2018	2nd Dirty Turtle 50k	50,00	—
78	30/3/2018	8th Badger Mountain 50 km Challenge	50,00	—
79	3/2/2018	13th Orcas Island 50k	50,00	—
80	9/12/2017	7th Deception Pass 50 km	50,00	—
81	4/11/2017	4th Silver Falls Trail Run	50,00	—
82	27/5/2017	3rd The Beast Trail 50km	50,00	—