Which country won the first Olympic men's 4 × 400 metres relay at Stockholm 1912?

The United States won the first Olympic men’s 4 × 400 metres relay at the 1912 Stockholm Games.

The event was introduced at Stockholm, where the American team finished in 3:16.6. The United States team consisted of Mel Sheppard, Edward Lindberg, Norman Taber and Charles Reidpath. Their victory established the country’s early dominance in the Olympic long relay.

The 4 × 400 metres relay is run by four athletes, each completing one standard outdoor track lap. Unlike the 4 × 100 metres relay, runners do not all remain in separate lanes for the entire race; the race uses staggered starts and a controlled break toward the inside after the early exchanges.

The first Olympic relay used a 400-metre leg for each runner, but relay rules and exchange-zone markings have changed over time. The United States remains historically prominent in the event, though several nations have won Olympic titles.