Be American quartet that broke the mixed 4×400-meter relay world record during Friday’s prelims may have peaked a day early.
They weren’t anywhere near as fast in Saturday night’s final.
Netherlands upset the U.S thanks to final-leg push by Femke Bol, who chased down and passed Kaylyn Brown on the final stretch to cross the line in 3:07.43, just .02 off the world record the American set a night earlier.
Bol ran a final-leg 47.93, which was more than a second faster than Brown’s 49.14.
Vernon Norwood, Shamier Little, Bryce Deadmon and Brown finished in second, .177 behind the gold medal winners.