4x100 men's world record July 8, 2019 16 32 64 128 Men's 4x100 world record swimming Men's 4x100 world record time Men's 4x100 world record 2023 Men's 4x100 world record olympics Men's 4x100 world record track Men's 4x100 medley world record Men's 4x100 metres relay world record progression World record 4 100m relay
