ByHarry Poole
BBC Sport journalist in Tokyo
Two new global 100m champions were crowned as America's Melissa Jefferson-Wooden and Jamaica's Oblique Seville claimed stunning breakthrough victories at the World Athletics Championships in Tokyo.
Jefferson-Wooden, 24, sealed gold in the women's final in emphatic fashion, proving a class above her rivals in a championship record 10.61 seconds.
Less than 10 minutes later inside Japan's electric National Stadium, Seville, also 24, became the first Jamaican man to win a global 100m title since athletics icon Usain Bolt, who was watching here in the stands.
Seville led a Jamaican one-two ahead of Kishane Thompson, while defending champion Noah Lyles of the USA was forced to settle for bronze.
Jamaica also celebrated silver for Tina Clayton in the women's final, in which Olympic champion Julien Alfred, from Saint Lucia, took bronze, and Britain's Dina Asher-Smith finished eighth.