Jacob D. (Sjaak) Schipper
ID 9812
Born : 1948 Cat. M75 Ultrarunner since 2006 NED
49
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
11
Countries visited ?AUTAustriaBELBelgiumESPSpainFRAFranceGERGermanyIRLIrelandISLIcelandITAItalyNEDNetherlandsSUISwitzerlandSWESweden
91,6%
Rank quotient ?This runner's calculation uses 52 eligible race(s): Σ(rank − 1) = 10 418; Σ finishers = 11 369. 10 418 / 11 369 × 100 = 91.64%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed52
Km — ultra races3 082 km
> 100 km1
> 160 km1
Longest race160,9 km
1st De 100 mijl van Sint-Annen — 20/6/2015

Km per year (ultra races)

56
1 race
2022
2023
2024
2025
2026

Race types (share of distance)

Road32,1%
Trail67,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

Records

50 km5h14'11100 mi27h43'186 h53,67 km12 h87,36 km

HISTORY

52 race(s) · 1 split(s) nested
DateRacePerf.Rk
2022
04.06 56km NED3de Over het jacobspad 11:37:25 h14
2020
15.02 50km NED10e Sjravele door Limburg - Gulpen 8:51:15 h47
2019
19.10 87km NEDIndian Summer Ultra 87km 16:17:00 h38
25.01 50km NEDDutch coast ultra-run by night 50 km 9:15:00 h65
12.01 50km GER4. Taunus-Ultratrail 50km 13:03:00 h31
2018
01.06 47km AUT4. Hochkönigman Marathon Trail 10:51:28 h277
2017
07.05 50km SWELidingö Ultra 50 km 7:20:37 h237
18.03 50km NEDLimburgs Halfzware 50km 8:23:20 h19
25.02 82km ESPTransgrancanaria advanced 82 km 20:37:11 h438
11.02 50km NEDLimburgs Halfzware 50km 8:29:29 h21
2016
18.12 12h NEDLangsteNachtLoop 12 uurs 79.995 km3 🥉
16.07 55km ISL20 Laugavegurinn 55 km, Landmannalaugar - Húsadalur 9:12:59 h399
30.04 65km AUTInnsbruck Alpine Trailrun Festival 65 km 11:28:21 h100
16.04 60km NED10e Limburgs Zwaarste 60km 11:00:00 h70
12.03 50km NED5. SallandTrail 50 km 7:01:31 h198
13.02 50km NEDLimburgs Halfzware 50km 8:27:50 h45
22.01 50km NEDDutch coast ultra-run by night 50 km 7:50:00 h51
2015
10.10 60km NED9e Berg en Dal 60 km 7:56:15 h53
18.07 51km SUI3. Eiger Ultra Trail 51 km 13:21:30 h615
27.06 47km ITA4^ Cortina Trail 11:44:34 h933
20.06 100mi NED1st De 100 mijl van Sint-Annen 27:43:18 h4
25.04 51km GER36. Harzquerung Wernigerode-Nordhausen 7:12:04 h422
06.04 60km NED13e De Zestig van Texel 6:22:15 h268
14.03 50km NED4. SallandTrail 50 km 7:02:59 h174
2014
28.09 50km NED1st Run Forest Run 50 km Gasselte 5:14:11 h46
30.08 50km NED50 km Monnikentocht 6:20:00 h44
23.08 45km SWE1st Ultravasan45 6:05:51 h394
17.05 72.7km GER42. GutsMuths-Rennsteiglauf 10:30:28 h1966
06.04 63.3km IRL11th Connemara Int. Ultramarathon 8:36:57 h194
15.03 50km NEDLimburgs Halfzware 50km 7:35:00 h34
2013
24.11 69km BEL18ème Olne-Spa-Olne 10:35:32 h382
12.10 60km NED7e Berg en Dal 60 km 9:11:23 h65
13.07 55km ISL17. Laugavegurinn 55 km, Landmannalaugar - Húsadalur 9:28:15 h270
20.04 60km NED7e Limburgs Zwaarste 60km 9:29:00 h40
30.03 55km BEL2ème Trail des Crêtes de Spa 9:02:31 h385
2012
16.06 9h NED9 Uurs Estafette Den Haag 70.740 km11
19.05 50km NED2. 50 km UltraRun van Gieten 6:10:17 h35
04.03 6h NED17de Zes uurs ultraloop Stein 51.465 km127
2010
04.07 50km NED3. Ultraloop 50 van Assen 5:54:21 h56
11.04 63.3km IRL7th Connemara Int. Ultramarathon 7:41:25 h155
07.03 6h NED15de Zes uurs ultraloop Stein 50.578 km123
2009
20.06 12h NED12 Uur Den Haag 87.357 km16
2008
26.10 63.3km GER8. Röntgenlauf 8:47:39 h369
13.09 50km NED33. RUN Winschoten 50 km 5:26:28 h33
12.07 55km ISL12. Laugavegurinn 55 km, Landmannalaugar - Húsadalur 8:36:27 h210
28.06 86km FRA4ème Grand Raid 56 Golfe du Morbihan 15:10:13 h381
26.04 51km GER29. Harzquerung Wernigerode-Nordhausen 6:32:36 h278
02.03 6h NED13de Zes uurs ultraloop Stein 53.668 km102
2007
08.09 50km NEDRUN Winschoten 50 km, Finale IAU 50km Trophy 5:39:16 h47
14.07 55km ISL11. Laugavegurinn 55 km, Landmannalaugar - Þórsmörk 9:20:07 h130
16.06 6h NED6 Uur Den Haag 52.904 km18
2006
16.09 50km NED31. RUN Winschoten 50 km (IAU Trophy Final) 5:33:28 h37