DES MOINES — 13 Rio Olympic Preview events and a stacked co-ed shuttle hurdle relay are just some of the featured highlights surrounding the elite events at the Drake Relays presented by Hy-Vee. Rio Olympic Preview events kick off Friday with the men’s high jump at 7 p.m. ET and on the track with one of the most highly anticipated events of the weekend, the men’s 400 meters at 8:20 p.m. ET.

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