The 19-year-old Bukowiecki already in his opening round took a big lead with throw of 22.46m before breaking New Zealand's Jacko Gill's 23.00m World Junior Record in round three. The gold medal at World Junior Championships in Bydgoszcz was a perfect redemption for Bukowiecki after he finished 4th at World Indoor Championships in Eugene in March and European Championships in Amsterdam last week.
Romanian shot putter Andrei Toader with 22.30m national junior record throw took silver while the podium concluded USA's Bronson Osborn, who set a new personal best of 21.27m.
With a massive kick over last 100m Kenya's Rodgers Kwemoi prevailed in the men's 10,000m final clocking a new championship record and new personal best time of 27:25.23. Meanwhile Eritrea's Aron Kifle beat Uganda's Jacob Kiplimo for silver in a new national junior record time of 27:26.20.
Meanwhile in the women's 10,000m race walk China's Zhenxia Ma took the gold in a new Junior World lead of 45:18.18 followed by Italy's Noemi Stella (45:23.85) and Ethiopian race walker Yehualeye Beletew in third in 45:33.69.
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