The men's 4 × 400 metres relay at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 12 August.

Roberts came around the turn to take a 3-metre lead at the break, followed by GBR's Rabah Yousif and Spain's Lucas Búa, TTO's Jereem Richards was on the outside passing people.

Down the homestretch, Roberts again opened up the gap, handing off to Michael Cherry three metres ahead of Trinidad and Tobago's handoff to Machel Cedenio.

Great Britain's handoff to Dwayne Cowan was just a metre back as the top three teams had separated from the rest of the contenders.

Kerley was the anchor runner of the fastest 4x400 relay of the year prior to the championships, running for Texas A&M at the end of the college season more than two months earlier.