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UTMB World Series Events

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Oceania

14 - 15 February 2026

14 - 17 May 2026

26 - 28 November 2026

North America

05 - 07 March 2026

09 - 12 April 2026

23 - 25 April 2026

15 - 17 May 2026

27 - 28 June 2026

23 - 25 July 2026

14 - 16 August 2026

17 - 20 September 2026

08 - 11 October 2026

13 - 15 November 2026

02 - 04 October 2025

26 - 28 September 2025

Asia

06 - 08 March 2026

10 - 12 April 2026

30 April - 03 May 2026

18 - 21 June 2026

11 - 13 September 2026

10 - 12 December 2026

29 November - 07 December 2025

14 - 16 November 2025

08 - 09 November 2025

17 - 19 October 2025

17 - 19 October 2025

16 - 18 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2025

Africa

29 - 31 May 2026

MYUTMB

Masaaki IWASAKI

Masaaki IWASAKI

Nationality

Japan

Age

45-49 Men

Connect to claim this page

Club

KaikyoAC

Team

RBRGTRC

UTMB Index

Index

20K

50K

100K

100M

526

-

473

521

502

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

11.15.2025

TransLantau by UTMB 2025 - TransLantau80

100K

79 KM
3900 M+

20:02:32

289 / 467

242 / 385

10.10.2025

LAKE BIWA 100 2025 - LAKE BIWA100

100M

169 KM
10500 M+

42:00:35

101 / 244

83 / 173

06.21.2025

Kaga Spa by UTMB 2025 - 2025 Kaga Spa Trail Endurance100

100K

99.8 KM
6150 M+

-

DNF

DNF

11.09.2024

TransLantau by UTMB 2024 - TransLantau100

100K

96 KM
4500 M+

23:07:21

119 / 376

96 / 300

06.08.2024

Okushinano100 2024 - 100K

100K

100.8 KM
4680 M+

-

DNF

DNF

04.26.2024

MtFUJI100 2024 - FUJI

100M

166.6 KM
7039 M+

36:26:37

409 / 1443

375 / 1262

03.23.2024

Hiroshima Wangan Trail Run 2024 - 109km

100K

107 KM
6180 M+

21:09:16

75 / 497

68 / 415

12.28.2023

Kyoto Great Round 2023 - Kyoto Great Round 130

100M

130 KM
6500 M+

26:54:07

26 / 105

23 / 90

12.10.2023

IZU Trail Journey 2023 - ITJ70k

100K

69.1 KM
3242 M+

10:24:23

354 / 1364

316 / 1128

10.07.2023

Trans Jeju by Utmb 2023 - Jeju100K

100K

98.2 KM
4020 M+

16:17:34

140 / 754

115 / 611

Statistics

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UTMB® World Series - Ranking of trail runners by performance level on trail running

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