Japan at the 2015 World Championships in Athletics

The following Japanese competitors won medals at the Championships

Medal	Athlete	Event	Date
Bronze	Takayuki Tanii	50 kilometres walk	29 August

(q – qualified, NM – no mark, SB – season best)

Men

Track and road events

Athlete	Event	Heat		Semifinal		Final
		Result	Rank	Result	Rank	Result	Rank
Kei Takase	100 metres	10.15	4	Did not advance
	200 metres	20.33	4 q	20.64	8	Did not advance
Kenji Fujimitsu		20.28	2 Q	20.34	7	Did not advance
Abdul Hakim Sani Brown		20.35	2 Q	20.47	5	Did not advance
Yuzo Kanemaru	400 metres	45.65	6	Did not advance
Kota Murayama	5000 metres	14:07.11	17	N/A		Did not advance
Suguru Osako		13:45.82	7	N/A		Did not advance
Kenta Murayama	10,000 metres	N/A				29:50.22	22
Yuta Shitara		N/A				30:08.35	23
Tetsuya Yoroizaka		N/A				28:25.77	18
Masakazu Fujiwara	Marathon	N/A				2:21:06 SB	21
Kazuhiro Maeda		N/A				2:32:49	40
Takayuki Kishimoto	400 metres hurdles	49.78	8	Did not advance
Yuta Konishi		49.58 SB	6	Did not advance
Yuki Matsushita		49.34	4 Q	51.10	8	Did not advance
Kazuma Ōseto Kenji Fujimitsu Takuya Nagata Kotaro Taniguchi	4 × 100 metres relay	38.60	4	N/A		Did not advance
Tomoya Tamura Yuzo Kanemaru Naoki Kobayashi Takamasa Kitagawa	4 × 400 metres relay	3:02.97 SB	7	N/A		Did not advance
Isamu Fujisawa	20 kilometres walk	N/A				1:21:51	13
Yusuke Suzuki		N/A				DNF
Eiki Takahashi		N/A				1:28:30	47
Hirooki Arai	50 kilometres walk	N/A				3:43:44	4
Takayuki Tanii		N/A				3:42:55
Yuki Yamazaki		N/A				4:03:54	34

Field events

Athlete	Event	Qualification		Final
		Distance	Position	Distance	Position
Takashi Eto	High jump	2.22	28	Did not advance
Yuji Hiramatsu		2.17	35	Did not advance
Naoto Tobe		2.26	25	Did not advance
Hiroki Ogita	Pole vault	5.65 SB	20	Did not advance
Seito Yamamoto		5.65 SB	23	Did not advance
Yohei Sugai	Long jump	7.92	16	Did not advance
Ryohei Arai	Javelin throw	84.66 SB	2 Q	83.07	9

Combined events – Decathlon

Athlete	Event	100 m	LJ	SP	HJ	400 m	110H	DT	PV	JT	1500 m	Final	Rank
Akihiko Nakamura	Result	10.86	7.26	11.67	1.95	47.81	14.72	33.48	4.70	53.57 PB	4:16.36	7745	16
	Points	892	876	586	758	918	884	633	819	642	837
Keisuke Ushiro	Result	11.51	6.73	14.93	1.89	50.85	15.43	46.85	4.70	56.52	4:43.51	7532	20
	Points	750	750	785	705	776	798	805	819	686	658

• Japanese team