Mary Deane Davis

Born : 1969 Cat. W55 Ultrarunner since 2010

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 ?

United States

76,9%

Rank quotient ?This runner's calculation uses 96 eligible race(s): Σ(rank − 1) = 8 782; Σ finishers = 11 413. 8 782 / 11 413 × 100 = 76.95%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed96

Km — ultra races8 687 km

> 100 km22

> 160 km15

> 200 km3

> 24h7

Longest race402,3 km

6th Cocodona 250 — 4/5/2026

Km per year (ultra races)

961

2022

200

2023

375

2024

826

2025

713

2026

Race types (share of distance)

Road21,5%

Trail78,5%

Wins & podiums (ultra)

🏆 Win1

🏆 Win F4

🏅 Top 33

🏅 Top 3 F12

Longest winning streak1

Current streak0

Records

50 km5h09'14 100 km14h03'34 50 mi10h42'25 100 mi26h54'20 6 h46,45 km 12 h80,55 km 24 h131,97 km

HISTORY

96 race(s)

Date		Race	Perf.	Rk
2026
26.06	100mi	4th Copper Kings 100	38:29:16 h	113
04.05	250mi	6th Cocodona 250	4d 19:46:19 h	197
14.02	100km	13th Black Canyon Trail 100 km Run	18:05:31 h	643
24.01	50km	6th Southern Freeze 50 km Race	6:14:22 h	12
2025
10.10	238mi	9th Moab 240 Endurance Run	4d 16:30:18 h	113
20.09	50mi	15th The Georgia Jewel 50 Mile Run	14:36:20 h	58
18.07	100mi	36th Vermont 100 Mile Endurance Race	28:04:45 h	162
19.04	50km	14th Double Top 50 km	10:16:00 h	8
09.02	52km	12th Black Canyon Trail 50 km Run	9:19:57 h	486
08.02	100km	12th Black Canyon Trail 100 km Run	17:09:02 h	624
2024
31.08	40mi	19th Iron Mountain 40 Mile Trail Run	11:08:03 h	43
27.07	50km	9th Last at the Lake 50k Run	8:58:45 h	11
10.02	99.9km	11th Black Canyon Trail 100 km Run	19:51:20 h	727
13.01	100mi	14th Long Haul 100 Mile Ultra-Marathons	29:06:38 h	98
2023
26.11	50km	5th Fountain City Five 50 km Run	7:10:29 h	9
23.09	50km	14th The Bear Chase 50 km	8:19:51 h	74
20.05	50km	9th Yamacraw 50k	10:36:28 h	212
29.04	50.1km	10th The Canyons Endurance 50 km Run	9:15:42 h	392
2022
01.10	50km	6th Bull Mountain 50 km Epic Run	8:57:41 h	37
10.09	50mi	6th Rebecca Mountain 50 Mile Race	13:51:51 h	55
06.08	50mi	11th H9 Dragon 50 Miler	19:08:26 h	26
17.06	202mi	7th Tahoe 200 Mile Endurance Run	4d 01:52:49 h	125
09.04	100km	11th The Zion 100 km Run	18:35:22 h	173
19.03	50km	8th The Pistol 50 km Ultra Run	6:15:39 h	45
19.03	50mi	8th The Pistol 50 Mile Ultra Run	13:53:32 h	26
05.02	50km	1st Frozen Falls 50 km Race	7:11:19 h	29
29.01	50mi	2nd Southern Freeze 50 Mile Race	10:42:25 h	5
15.01	40mi	4th Fierce Dragon Flintstrike 40	16:40:00 h	9
2021
09.10	100mi	9th Indiana Trail 100 Mile	28:26:14 h	69
11.09	50mi	5th Rebecca Mountain 50 Mile Race	12:57:30 h	32
07.08	50mi	10th H9 Dragon 50 Miler	17:31:00 h	21
14.05	106mi	9th Cruel Jewel 100 Mile	43:19:37 h	116
15.04	50km	10th Double Top 50 km	9:47:00 h	19
2020
15.02	100km	7th Black Canyon Trail 100 km Run	18:23:15 h	518
18.01	50km	10th Tsali Frosty Foot 50k	7:59:08 h	78
2019
31.12	24h	Team RWB New Year’s Eve Ultramarathon 24 hours	131.966 km	1 🏆
05.10	50km	3rd Bull Mountain 50 km Epic Run	8:44:10 h	43
21.09	50mi	9th The Georgia Jewel 50 Mile Run	15:15:07 h	79
24.08	50mi	2nd Southern Fried 50 Mile Race	12:16:15 h	12
10.08	50mi	8th H9 Dragon 50 Miler	19:08:00 h	29
27.07	50km	4th Last at the Lake 50k Run	8:26:25 h	22
07.07	12h	8th Merrill's Mile 12 Hour Run	58.962 km	15
16.03	100km	7th The Pistol 100 km Ultra Run	14:03:34 h	24
02.02	100mi	27th Rocky Raccoon 100 Mile Trail Run	29:41:13 h	200
2018
31.12	24h	Team RWB New Year’s Eve Ultramarathon 24 hours	101.388 km	5
09.09	50km	6th Yeti Snakebite 50 km	8:56:41 h	75
02.06	24h	3rd Ozone Endurance Challenge 24 Hour Race	112.654 km	5
19.05	56mi	6th Cruel Jewel 50 Mile	24:27:14 h	85
18.03	50km	6th The Pistol 50 km Ultra Run	6:18:35 h	43
17.03	50mi	6th The Pistol 50 Mile Ultra Run	14:27:50 h	23
27.01	50km	3rd Chehaw Challenge 50 km	7:44:34 h	27
07.01	50km	25th Atlanta Fat Ass 50K	7:51:19 h	62
2017
09.12	24h	6th One Epic Run 24 Hour Race	69.845 km	36
28.10	100mi	15th Javelina Jundred 100 Mile Endurance Run	28:48:39 h	304
26.08	50km	5th Yeti Snakebite 50 km	7:52:00 h	85
12.08	50mi	6th H9 Dragon 50 Miler	19:31:00 h	19
02.07	24h	6th Merrill's Mile 24 Hour Run	106.769 km	5
29.04	100mi	2nd Great Southern 100 Mile Endurance Run	29:12:04 h	4
05.03	11h	1st Yeti 11 Hour Endurance Run	51.499 km	21
2016
31.12	100mi	5th The Pistol 100 Mile Ultra Run	26:58:49 h	43
30.09	100mi	2nd The Yeti 100 Mile Endurance Run	27:21:09 h	58
27.08	50km	4th Yeti Snakebite 50 km	8:29:23 h	79
13.08	50mi	5th H9 Dragon 50 Miler	18:57:00 h	31
03.07	6h	5th Merrill's Mile 6 Hour Run	46.448 km	8
02.04	100mi	3rd Blind Pig 100 Mile Ultra Marathon	27:06:52 h	18
12.03	50km	1st Cubihatcha Challenge 50K	6:39:36 h	13
16.01	12h	5th 12hrs of HOSTELity	73.225 km	2 🥈
10.01	50km	23th Atlanta Fat Ass 50K	7:13:31 h	41
2015
05.12	24h	5th One Epic Run 24 Hour Race	129.713 km	6
24.10	50km	1st Firewater 50k Trail Race	7:58:19 h	27
26.09	35mi	5th The Georgia Jewel 35 Mile Run	8:09:42 h	12
30.08	50mi	3rd Yeti Snakebite 50 Miles	12:35:03 h	56
10.01	50mi	1st Cloudland Canyon 50 Mile Race	13:11:32 h	71
2014
07.12	40mi	25th Pine Mountain 40 Miles	10:25:17 h	120
22.11	50mi	52nd JFK 50 Mile	11:24:00 h	648
27.09	50mi	4th The Georgia Jewel 50 Mile Run	15:28:04 h	26
31.08	50km	2nd Yeti Snakebite 50 km	8:39:43 h	49
03.08	8h	13th Hot to Trot 8 Hours Run	58.936 km	24
07.06	38mi	19th Kettle Moraine 38 Mile Fun Run	9:39:52 h	33
17.05	50mi	2nd Cruel Jewel 50 Mile	22:35:00 h	45
05.04	100mi	20th Umstead Endurance Run 100 Miles	26:54:20 h	104
15.03	68mi	2nd Georgia Death Race	20:38:42 h	80
18.01	12h	3rd 12hrs of HOSTELity	80.547 km	3 🥉
05.01	50km	21th Atlanta Fat Ass 50K	6:32:44 h	48
2013
08.12	40mi	24th Pine Mountain 40 Miles	9:36:48 h	78
10.11	50km	12th Peachtree City 50K	5:09:14 h	10
21.09	35mi	3rd The Georgia Jewel 35 Mile Run	9:44:00 h	16
01.09	50km	1st Yeti Snakebite 50 km	8:12:43 h	57
03.08	8h	12th Hot to Trot 8 Hours Run	55.132 km	48
06.07	24h	2nd Merrill's Mile 24 Hour Run	101.988 km	15
19.01	12h	2nd 12hrs of HOSTELity	65.902 km	7
05.01	50km	14th Salem Lakeshore Frosty Fifty	5:44:58 h	108
2012
05.05	40mi	34th Strolling Jim 40 Mile	9:48:48 h	87
07.01	50km	13th Salem Lakeshore Frosty Fifty	5:58:03 h	94
2010
16.10	50mi	3rd Nashville 50 Mile Ultra Marathon	11:29:06 h	53
01.05	40mi	32nd Strolling Jim 40 Mile	8:08:21 h	71

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	4/5/2026	6th Cocodona 250	402,34	×5
✓ 2	10/10/2025	9th Moab 240 Endurance Run	383,02	×5
✓ 3	17/6/2022	7th Tahoe 200 Mile Endurance Run	325,09	×4
✓ 4	14/5/2021	9th Cruel Jewel 100 Mile	170,59	×2
✓ 5	26/6/2026	4th Copper Kings 100	160,93	×2
✓ 6	18/7/2025	36th Vermont 100 Mile Endurance Race	160,93	×2
✓ 7	13/1/2024	14th Long Haul 100 Mile Ultra-Marathons	160,93	×2
✓ 8	9/10/2021	9th Indiana Trail 100 Mile	160,93	×2
✓ 9	2/2/2019	27th Rocky Raccoon 100 Mile Trail Run	160,93	×2
✓ 10	28/10/2017	15th Javelina Jundred 100 Mile Endurance Run	160,93	×2
✓ 11	29/4/2017	2nd Great Southern 100 Mile Endurance Run	160,93	×2
✓ 12	31/12/2016	5th The Pistol 100 Mile Ultra Run	160,93	×2
✓ 13	30/9/2016	2nd The Yeti 100 Mile Endurance Run	160,93	×2
✓ 14	2/4/2016	3rd Blind Pig 100 Mile Ultra Marathon	160,93	×2
✓ 15	5/4/2014	20th Umstead Endurance Run 100 Miles	160,93	×2
✓ 16	31/12/2019	Team RWB New Year’s Eve Ultramarathon 24 hours	131,97	×1
✓ 17	5/12/2015	5th One Epic Run 24 Hour Race	129,71	×1
✓ 18	2/6/2018	3rd Ozone Endurance Challenge 24 Hour Race	112,65	×1
✓ 19	15/3/2014	2nd Georgia Death Race	109,44	×1
✓ 20	2/7/2017	6th Merrill's Mile 24 Hour Run	106,77	×1
✓ 21	6/7/2013	2nd Merrill's Mile 24 Hour Run	101,99	×1
✓ 22	31/12/2018	Team RWB New Year’s Eve Ultramarathon 24 hours	101,39	×1
✓ 23	14/2/2026	13th Black Canyon Trail 100 km Run	100,00	×1
✓ 24	8/2/2025	12th Black Canyon Trail 100 km Run	100,00	×1
✓ 25	9/4/2022	11th The Zion 100 km Run	100,00	×1
✓ 26	15/2/2020	7th Black Canyon Trail 100 km Run	100,00	×1
✓ 27	16/3/2019	7th The Pistol 100 km Ultra Run	100,00	×1
✓ 28	10/2/2024	11th Black Canyon Trail 100 km Run	99,90	×1
✓ 29	19/5/2018	6th Cruel Jewel 50 Mile	90,12	×1
✓ 30	18/1/2014	3rd 12hrs of HOSTELity	80,55	×1
✓ 31	20/9/2025	15th The Georgia Jewel 50 Mile Run	80,47	×1
✓ 32	10/9/2022	6th Rebecca Mountain 50 Mile Race	80,47	×1
✓ 33	6/8/2022	11th H9 Dragon 50 Miler	80,47	×1
✓ 34	19/3/2022	8th The Pistol 50 Mile Ultra Run	80,47	×1
✓ 35	29/1/2022	2nd Southern Freeze 50 Mile Race	80,47	×1
✓ 36	11/9/2021	5th Rebecca Mountain 50 Mile Race	80,47	×1
✓ 37	7/8/2021	10th H9 Dragon 50 Miler	80,47	×1
✓ 38	21/9/2019	9th The Georgia Jewel 50 Mile Run	80,47	×1
✓ 39	24/8/2019	2nd Southern Fried 50 Mile Race	80,47	×1
✓ 40	10/8/2019	8th H9 Dragon 50 Miler	80,47	×1
✓ 41	17/3/2018	6th The Pistol 50 Mile Ultra Run	80,47	×1
✓ 42	12/8/2017	6th H9 Dragon 50 Miler	80,47	×1
✓ 43	13/8/2016	5th H9 Dragon 50 Miler	80,47	×1
✓ 44	30/8/2015	3rd Yeti Snakebite 50 Miles	80,47	×1
✓ 45	10/1/2015	1st Cloudland Canyon 50 Mile Race	80,47	×1
✓ 46	22/11/2014	52nd JFK 50 Mile	80,47	×1
✓ 47	27/9/2014	4th The Georgia Jewel 50 Mile Run	80,47	×1
✓ 48	17/5/2014	2nd Cruel Jewel 50 Mile	80,47	×1
✓ 49	16/10/2010	3rd Nashville 50 Mile Ultra Marathon	80,47	×1
✓ 50	16/1/2016	5th 12hrs of HOSTELity	73,23	×1
✓ 51	9/12/2017	6th One Epic Run 24 Hour Race	69,85	—
✓ 52	19/1/2013	2nd 12hrs of HOSTELity	65,90	—
✓ 53	31/8/2024	19th Iron Mountain 40 Mile Trail Run	64,37	—
✓ 54	15/1/2022	4th Fierce Dragon Flintstrike 40	64,37	—
✓ 55	7/12/2014	25th Pine Mountain 40 Miles	64,37	—
✓ 56	8/12/2013	24th Pine Mountain 40 Miles	64,37	—
✓ 57	5/5/2012	34th Strolling Jim 40 Mile	64,37	—
✓ 58	1/5/2010	32nd Strolling Jim 40 Mile	64,37	—
✓ 59	7/6/2014	19th Kettle Moraine 38 Mile Fun Run	61,16	—
60	7/7/2019	8th Merrill's Mile 12 Hour Run	58,96	—
61	3/8/2014	13th Hot to Trot 8 Hours Run	58,94	—
62	26/9/2015	5th The Georgia Jewel 35 Mile Run	56,33	—
63	21/9/2013	3rd The Georgia Jewel 35 Mile Run	56,33	—
64	3/8/2013	12th Hot to Trot 8 Hours Run	55,13	—
65	9/2/2025	12th Black Canyon Trail 50 km Run	52,00	—
66	5/3/2017	1st Yeti 11 Hour Endurance Run	51,50	—
67	29/4/2023	10th The Canyons Endurance 50 km Run	50,10	—
68	24/1/2026	6th Southern Freeze 50 km Race	50,00	—
69	19/4/2025	14th Double Top 50 km	50,00	—
70	27/7/2024	9th Last at the Lake 50k Run	50,00	—
71	26/11/2023	5th Fountain City Five 50 km Run	50,00	—
72	23/9/2023	14th The Bear Chase 50 km	50,00	—
73	20/5/2023	9th Yamacraw 50k	50,00	—
74	1/10/2022	6th Bull Mountain 50 km Epic Run	50,00	—
75	5/2/2022	1st Frozen Falls 50 km Race	50,00	—
76	15/4/2021	10th Double Top 50 km	50,00	—
77	18/1/2020	10th Tsali Frosty Foot 50k	50,00	—
78	5/10/2019	3rd Bull Mountain 50 km Epic Run	50,00	—
79	27/7/2019	4th Last at the Lake 50k Run	50,00	—
80	9/9/2018	6th Yeti Snakebite 50 km	50,00	—
81	18/3/2018	6th The Pistol 50 km Ultra Run	50,00	—
82	27/1/2018	3rd Chehaw Challenge 50 km	50,00	—
83	7/1/2018	25th Atlanta Fat Ass 50K	50,00	—
84	26/8/2017	5th Yeti Snakebite 50 km	50,00	—
85	27/8/2016	4th Yeti Snakebite 50 km	50,00	—
86	12/3/2016	1st Cubihatcha Challenge 50K	50,00	—
87	10/1/2016	23th Atlanta Fat Ass 50K	50,00	—
88	24/10/2015	1st Firewater 50k Trail Race	50,00	—
89	31/8/2014	2nd Yeti Snakebite 50 km	50,00	—
90	5/1/2014	21th Atlanta Fat Ass 50K	50,00	—
91	10/11/2013	12th Peachtree City 50K	50,00	—
92	1/9/2013	1st Yeti Snakebite 50 km	50,00	—
93	5/1/2013	14th Salem Lakeshore Frosty Fifty	50,00	—
94	7/1/2012	13th Salem Lakeshore Frosty Fifty	50,00	—
95	3/7/2016	5th Merrill's Mile 6 Hour Run	46,45	—