Japan competed at the 2019 World Championships in Athletics in Doha, Qatar from 27 September to 6 October 2019. The country finished in 8th place in the medal table.
Medalists Medal Athlete Event DateToshikazu YamanishiMen's 20 kilometres walkOctober 4Yusuke SuzukiMen's 50 kilometres walkSeptember 28Shuhei TadaKirara ShiraishiYoshihide KiryūAbdul Hakim Sani BrownYuki Koike*Men's 4 × 100 metres relaySeptember 5
Results Key Note–Ranks given for track events are within the athlete's heat only Q = Qualified for the next round q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target NR = National record N/A = Round not applicable for the event Bye = Athlete not required to compete in round
Men Track & road AthleteEventHeatQuarterfinalSemifinal FinalResultRankResultRankResultRankResultRankYoshihide Kiryū 100 m colspan=2 10.18 4 q 10.16 6did not advanceYuki Koike colspan=2 10.21 4 q 10.28 7did not advanceAbdul Hakim Sani Brown colspan=2 10.09 3 Q 10.15 5did not advanceYuki Koike200 m 20.46 4 colspan=2 rowspan=3 did not advance Jun Yamashita 20.62 5did not advance Kirara Shiraishi 20.62 5did not advance Julian Walsh400 m 45.14 2 Qcolspan=2 45.13 4did not advanceShunsuke Izumiya 110 m hurdlescolspan=2 rowspan=3 did not advanceTaio Kanai 13.74 7did not advanceShunya Takayama 13.32 2 Q 13.58 6did not advanceTakatoshi Abe 400 m hurdles 49.25 2 Q 48.97 3colspan=2 rowspan=2 did not advanceTaio Kanai 50.34 5 q 50.30 8did not advanceKirara ShiraishiYoshihide KiryuYuki KoikeShuhei TadaAbdul Hakim Sani Brown4 × 100 m relay 37.78 2 Qcolspan=4 37.43 Julian WalshShota IizukaKentaro SatoKota Wakabayashi4 × 400 m relay 3:02.05 5colspan=4 did not advanceHiroki YamagishiMarathoncolspan=6 rowspan=3 2:16.43 25Yuki Kawauchi 2:17.59 29Kohei Futaoka 2:19.23 37Koki Ikeda20 km walkcolspan=6 rowspan=3 1:29.02 6Toshikazu Yamanishi 1:26.34 Eiki Takahashi 1:30.04 10Yusuke Suzuki50 km walkcolspan=6 rowspan=3 4:04.20 Hayato Katsuki 4:46.10 27Tomohiro Noda
Field AthleteEventQualificationFinalDistancePosition DistancePosition Naoto TobeHigh jump 2.26 14did not advanceRyo Sato 2.22 22did not advanceTakashi Eto 2.17 =25did not advanceSeito YamamotoPole vault 5.60 20did not advanceDaichi Sawano 5.45 27did not advanceMasaki Ejima 5.47 28did not advanceYuki HashiokaLong Jump 8.07 3 q 7.97 8Shotaro Shiroyama 7.94 8 q 7.77 11Hibiki Tsuha 7.72 18did not advanceRyohei AraiJavelin throw 81.71 15did not advance
Combined - Decathlon AthleteEventFinalRankKeisuke Ushiro Result11.446.9014.311.9051.42 15.2648.41 4.40 61.364:52.12754516Points765790747714750818837731758606
Women Track & road AthleteEventHeatSemifinal FinalResultRankResultRankResultRankNozomi Tanaka 5000 m 15:04.66 PB 12 q colspan=2 15:00.01 PB 14Tomoka Kimura 15:53.08 24 colspan=2 did not advanceHitomi Niiya 10,000 m colspan=4 31:12.99 SB 11Minami Yamanouchi colspan=4 32:53.46 19Mizuki Tanimoto Marathon colspan=4 rowspan=3 2:39:09 7Madoka Nakano 2:42:39 11Ayano Ikemitsudid not finishReimi Yoshimura 3000 m steeplechase 9:55.72 39 colspan=2 did not advanceAyako Kimura 100 m hurdles 13.19 28did not advanceAsuka Terada 13.20 29did not advanceKumiko Okada 20 km walk colspan=4 rowspan=2 1:34:36 6Nanako Fujii 1:34:50 7Masumi Fuchise 50 km walk colspan=4 4:41:02 11 Field AthleteEventQualificationFinalDistancePosition DistancePosition Nanaka KoriDiscus throw 48.82 29did not advanceHaruka KitaguchiJavelin throw 60.84 13did not advanceYuka Sato 55.03 29did not advance Mixed Track & road AthleteEventHeatSemifinal FinalResultRankResultRankResultRankSeika Aoyama Kota Wakabayashi Tomoya Tamura Saki Takashima 4 × 400 m relay 3:18.77 NR 16colspan=2 did not advance
References