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Zuzana Hejnova runs 38.16 All time best for 300m hurdles, by Alfons Juck, note by Larry Eder - runblogrun
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Athletes wearing 'super spikes' are dominating Olympic track and field, and Nike's shoes lead the way
![USATF on Twitter: "🚨RATIFIED WU20R🚨 Erriyon Knighton is OFFICIALLY the fastest man under 20 in the 200m. His 19.69 world U20 record at the USATF Championships has been ratified! 💥 #JourneyToGold https://t.co/NbrvHpNsnI" / USATF on Twitter: "🚨RATIFIED WU20R🚨 Erriyon Knighton is OFFICIALLY the fastest man under 20 in the 200m. His 19.69 world U20 record at the USATF Championships has been ratified! 💥 #JourneyToGold https://t.co/NbrvHpNsnI" /](https://pbs.twimg.com/media/Fkq0IuSXwAApFOn.jpg:large)
USATF on Twitter: "🚨RATIFIED WU20R🚨 Erriyon Knighton is OFFICIALLY the fastest man under 20 in the 200m. His 19.69 world U20 record at the USATF Championships has been ratified! 💥 #JourneyToGold https://t.co/NbrvHpNsnI" /
![France's Naman Keita competes on 400m Hurdles Men during the Athletics Meeting Gaz de France at the Stade de France in Saint-Denis near Paris, France on July 8, 2006. Photo by Stephane France's Naman Keita competes on 400m Hurdles Men during the Athletics Meeting Gaz de France at the Stade de France in Saint-Denis near Paris, France on July 8, 2006. Photo by Stephane](https://c8.alamy.com/comp/2E9GGDY/frances-naman-keita-competes-on-400m-hurdles-men-during-the-athletics-meeting-gaz-de-france-at-the-stade-de-france-in-saint-denis-near-paris-france-on-july-8-2006-photo-by-stephane-kempinairecameleonabacapresscom-2E9GGDY.jpg)