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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Niwa, Masaki 丹羽正樹   Submit Personal Website Send Link 
Club: 東京陸上競技協会 
Residence: Tokyo
Year of birth: 1973 (Cat. german: M50)
Date of birth: 03.10.1973 (Cat. internat.: M50)
Nationality: JPN JPN Japan
RunnerID: 161596
 

8 search results (8 Events, 758 km).  (More)

2014 1 Event, 100 km  (More)
27.07.2014 North Okhotsk 100 Km Marathon (JPN) 100km
9:43:32 h Niwa, Masaki 東京陸上競技協会  Overall: 20 M: 19 Cat M40: 2
2013 1 Event, 100 km  (More)
20.10.2013 Noto Peninsula 100 km Ultra Marathon (JPN) 100km
11:00:09 h Niwa, Masaki *Ota Ward, Tokyo Pref.  Overall: 62 M: 56 Cat M40: 10
2011 3 Events, 287 km  (More)
25.09.2011 Muraoka 100 km Ultra Marathon (JPN) 100km
10:12:43 h Niwa, Masaki   Overall: 21 M: 19 Cat M35: 4
19.06.2011 Okinoshima 100km Ultra Marathon (JPN) 100km
9:02:05 h Niwa, Masaki *Tokyo  Overall: 11 M: 10 Cat M35: 2
29.05.2011 Comrades Marathon - Up Run (RSA) 87km
8:16:07 h Niwa, Masaki *Tokyo  Overall: 1032 M: 988 Cat M35: 259
2010 2 Events, 171 km  (More)
27.06.2010 Lake Saroma 100 Km Ultramarathon (JPN) 100km
9:46:38 h Niwa, Masaki *Tokyo  Overall: 199 M: 180 Cat M35: 34
16.05.2010 Yatsugatake Nobeyama 71 km (JPN) 71km
6:52:42 h Niwa, Masaki   Overall: 16 M: 14 Cat M35: 4
2009 1 Event, 100 km  (More)
28.06.2009 Lake Saroma 100 Km Ultramarathon (JPN) 100km
10:18:54 h Niwa, Masaki *Tokyo  Overall: 475 M: 436 Cat M35: 68

Personal bests

Your list of personal best performances only contains performances of races which can be included into rankings.

In brackets rank in yearly international/national rankings.

 PB 2014 2013 2011 2010 2009
100km 9:46:38  
 
 
9:46:38
(1194/262) 		10:18:54
(1914/566)

Comparison table

Comparison of performances in races with multiple participations

   2014 2013 2011 2010 2009
Lake Saroma 100 Km Ultramarathon 2       9:46:38 10:18:54