DES MOINES — As Emma Bock approached the finish line, the emotion registered on her face. History was only a stride or two away. “I was thinking, ‘No way this is happening,’” Bock said. It happened.

The Holy Cross 4x100-meter relay team posted the fastest time in Louisiana last week at the Ronnie Doyle Classic track and field meet and will get tested against broader competition this week in Texas ...