Stephan Keller

Born : 1959 Cat. M65 Ultrarunner since 2006

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 ?

Bhutan

Spain

Germany

Italy

Morocco

Portugal

South Africa

Switzerland

Uzbekistan

31,2%

Rank quotient ?This runner's calculation uses 49 eligible race(s): Σ(rank − 1) = 28 640; Σ finishers = 91 727. 28 640 / 91 727 × 100 = 31.22%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed94

Km — ultra races6 342 km

> 100 km19

> 160 km16

> 200 km10

Longest race400,0 km

2nd The Munga trail race — 18/4/2018

Km per year (ultra races)

2022

171

2023

250

2024

336

2025

2026

Race types (share of distance)

Road12,9%

Trail54,5%

Stage32,7%

Records

100 km11h37'09 50 mi9h25'03 100 mi22h25'39

HISTORY

49 race(s) · 1 split(s) nested

Date		Race	Perf.	Rk
2025
26.04	230km/6stages	1st GlobalLimits Uzbekistan - Footsteps of Alexander the Great	34:07:49 h	27
29.03	106km	3. Lake Zuri 100 Endurance Run	17:45:19 h	133
2024
15.09	250km/6stages	23th Kalahari Augrabies Extreme Marathon	39:57:00 h	10
2023
16.09	53km	2nd Wildstrubel by UTMB - 50K	12:00:59 h	777
05.05	118km	Azores Trail - Whalers Great Route Ultra-Trail	26:25:44 h	35
2022
28.08	90km	95th Comrades Marathon - Down Run	9:53:38 h	3877
2021
14.08	100mi	9. Mauerweglauf 100 Meilen Berlin	27:34:13 h	219
17.07	53.3km	1. Engadin Ultra Trail 53 km	8:53:55 h	74
2019
12.10	250km/6stages	20th Kalahari Augrabies Extreme Marathon	44:22:28 h	12
16.08	100km	3. Swiss Alps 100 - 100km	23:49:32 h	71
27.07	84.9km	7. Swissalpine Irontrail T88	14:47:58 h	162
09.06	87km	94th Comrades Marathon - Up Run	9:45:37 h	4697
13.04	200km/7stages	4th Peneda-Geres Trail Adventure 200km	29:29:51 h	8
2018
11.08	100mi	7. Mauerweglauf 100 Meilen Berlin	22:25:39 h	112
28.07	85km	6. Swissalpine Irontrail T88	14:09:37 h	91
26.05	73.9km	46. GutsMuths-Rennsteiglauf	8:48:00 h	767
18.04	400km	2nd The Munga trail race	4d 19:05:00 h	8
31.03	56km	49th Two Oceans Marathon	5:24:49 h	2065
31.03	50km	49th Two Oceans Marathon - 50km Split	4:50:04 h	2165
2017
13.09	255km/6stages	2nd The Way of Legends - Burgos ultra stage race	31:33:04 h	9
10.09	330km	8° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta	5d 13:05:28 h	220
29.07	47km	32. Swiss Alpine Marathon K47	6:30:46 h	187
15.07	101km	5. Eiger Ultra Trail 101 km	21:10:58 h	311
09.06	100km	59. 100 km Lauf Biel - Schweizer Meisterschaft	11:37:09 h	228
09.06	100km	59. 100 km Lauf Biel	11:37:09 h	228
2016
13.10	250km/6stages	17th Kalahari Augrabies Extreme Marathon	34:58:25 h	14
10.09	53km	2. Arosa TrailRun AT46	10:36:22 h	49
05.08	200km	4. Swiss Irontrail T201	2d 09:19:53 h	48
27.05	200km/6stages	4th GlobalLimits Bhutan 2016 - The Last Secret	31:27:35 h	9
2015
24.10	185km/5stages	16th Kalahari Augrabies Extreme Marathon	22:58:40 h	21
03.10	65km	2nd Ultra-Trail Cape Town (UTCT) 65 km	9:50:39 h	24
13.08	201km	3. Swiss Irontrail T201	2d 11:53:11 h	80
25.07	76.1km	30. Swiss Alpine Marathon	10:49:33 h	372
31.05	87km	90th Comrades Marathon - Up Run	9:39:37 h	3079
2014
14.08	201km	2. Swiss Irontrail T201	2d 11:46:55 h	62
26.07	79km	29. Swiss Alpine Marathon	10:28:38 h	237
14.06	74.3km	19ème Le Defi de Val de Travers - Trail de l'Absinthe	10:46:43 h	59
01.06	89km	89th Comrades Marathon - Down Run	8:55:09 h	2116
2013
19.10	80km	3^ Ultra-Trail del Lago d'Orta 80 km	15:59:29 h	142
27.07	77.5km	28. Swiss Alpine Marathon	10:54:55 h	383
02.06	87km road race	88th Comrades Marathon - Up Run	9:54:48 h	3101
2012
28.07	79.4km	27. Swiss Alpine Marathon	9:25:03 h	357
2011
30.07	79.1km	26. Swiss Alpine Marathon	10:14:19 h	468
09.07	45.5km	1. Zermatt Ultra Marathon	6:20:48 h	331
03.04	250.7km/6stages	26. Marathon des Sables	45:12:26 h	371
2010
31.07	78km	25. Swiss Alpine Marathon	10:28:58 h	890
2009
25.07	78km	24. Swiss Alpine Marathon	9:24:43 h	445
2008
26.07	78km	23. Swiss Alpine Marathon	10:46:18 h	682
2007
28.07	78km	22. Swiss Alpine Marathon	10:35:55 h	635
2006
29.07	78km	21. Swiss Alpine Marathon	9:29:38 h	386

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	18/4/2018	2nd The Munga trail race	400,00	×5
✓ 2	10/9/2017	8° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta	330,00	×4
✓ 3	13/9/2017	2nd The Way of Legends - Burgos ultra stage race	255,00	×3
✓ 4	3/4/2011	26. Marathon des Sables	250,70	×3
✓ 5	15/9/2024	23th Kalahari Augrabies Extreme Marathon	250,00	×3
✓ 6	12/10/2019	20th Kalahari Augrabies Extreme Marathon	250,00	×3
✓ 7	13/10/2016	17th Kalahari Augrabies Extreme Marathon	250,00	×3
✓ 8	26/4/2025	1st GlobalLimits Uzbekistan - Footsteps of Alexander the Great	230,00	×3
✓ 9	13/8/2015	3. Swiss Irontrail T201	201,00	×2
✓ 10	14/8/2014	2. Swiss Irontrail T201	201,00	×2
✓ 11	13/4/2019	4th Peneda-Geres Trail Adventure 200km	200,00	×2
✓ 12	5/8/2016	4. Swiss Irontrail T201	200,00	×2
✓ 13	27/5/2016	4th GlobalLimits Bhutan 2016 - The Last Secret	200,00	×2
✓ 14	24/10/2015	16th Kalahari Augrabies Extreme Marathon	185,00	×2
✓ 15	14/8/2021	9. Mauerweglauf 100 Meilen Berlin	160,93	×2
✓ 16	11/8/2018	7. Mauerweglauf 100 Meilen Berlin	160,93	×2
✓ 17	5/5/2023	Azores Trail - Whalers Great Route Ultra-Trail	118,00	×1
✓ 18	29/3/2025	3. Lake Zuri 100 Endurance Run	106,00	×1
✓ 19	15/7/2017	5. Eiger Ultra Trail 101 km	101,00	×1
✓ 20	16/8/2019	3. Swiss Alps 100 - 100km	100,00	×1
✓ 21	9/6/2017	59. 100 km Lauf Biel - Schweizer Meisterschaft	100,00	×1
✓ 22	28/8/2022	95th Comrades Marathon - Down Run	90,00	×1
✓ 23	1/6/2014	89th Comrades Marathon - Down Run	89,00	×1
✓ 24	9/6/2019	94th Comrades Marathon - Up Run	87,00	×1
✓ 25	31/5/2015	90th Comrades Marathon - Up Run	87,00	×1
✓ 26	2/6/2013	88th Comrades Marathon - Up Run (RSA)	87,00	×1
✓ 27	28/7/2018	6. Swissalpine Irontrail T88	85,00	×1
✓ 28	27/7/2019	7. Swissalpine Irontrail T88	84,90	×1
✓ 29	19/10/2013	3^ Ultra-Trail del Lago d'Orta 80 km	80,00	×1
✓ 30	28/7/2012	27. Swiss Alpine Marathon	79,40	×1
✓ 31	30/7/2011	26. Swiss Alpine Marathon	79,10	×1
✓ 32	26/7/2014	29. Swiss Alpine Marathon	79,00	×1
✓ 33	31/7/2010	25. Swiss Alpine Marathon	78,00	×1
✓ 34	25/7/2009	24. Swiss Alpine Marathon	78,00	×1
✓ 35	26/7/2008	23. Swiss Alpine Marathon	78,00	×1
✓ 36	28/7/2007	22. Swiss Alpine Marathon	78,00	×1
✓ 37	29/7/2006	21. Swiss Alpine Marathon	78,00	×1
✓ 38	27/7/2013	28. Swiss Alpine Marathon	77,50	×1
✓ 39	25/7/2015	30. Swiss Alpine Marathon	76,10	×1
✓ 40	14/6/2014	19ème Le Defi de Val de Travers - Trail de l'Absinthe	74,30	×1
✓ 41	26/5/2018	46. GutsMuths-Rennsteiglauf	73,90	×1
✓ 42	3/10/2015	2nd Ultra-Trail Cape Town (UTCT) 65 km	65,00	—
✓ 43	31/3/2018	49th Two Oceans Marathon	56,00	—
✓ 44	17/7/2021	1. Engadin Ultra Trail 53 km	53,30	—
✓ 45	16/9/2023	2nd Wildstrubel by UTMB - 50K	53,00	—
✓ 46	10/9/2016	2. Arosa TrailRun AT46	53,00	—
✓ 47	29/7/2017	32. Swiss Alpine Marathon K47	47,00	—
48	9/7/2011	1. Zermatt Ultra Marathon	45,50	—