The 19-year-old leaves the field behind in a blistering anchor leg.
Olympics
Serbia provides a bigger test, but U.S. rolls again in women’s basketball
Diana Taurasi leads the way with 25 points as the Americans move into the Olympic quarterfinals with a 110-84 win.
Katie Ledecky could shatter a new barrier at Olympics
The American swimmer, who won a gold medal Tuesday, could break the eight-minute mark in the 800-meter freestyle.
U.S. cyclist wins third straight Olympic women’s time trial
Kristin Armstrong is one of two American women to win three gold medals in the same event at any Olympics.
Olympic notes: Patriots get a kick out of Ebner’s Olympic debut
The New England safety scores for the U.S. during the rugby sevens tournament.
American swimmers Ledecky and Phelps are golden again
Michael Phelps picks up his 20th and 21st career gold medals while Katie Ledecky ekes out her second win in Rio.
U.S. women repeat as gold medalists in team gymnastics
The heavily favored Americans leave no doubt, finishing far ahead of Russia and China.
Strong debuts for U.S. Olympic rookies in women’s basketball
Elena Delle Donne, Breanna Stewart and Brittney Griner have shown they can dominate the action in the Americans’ first two games.
The Latest: American doubles team earns spot in semifinals
Steve Johnson and Jack Sock will face a Romanian team in their next match.
Slow start no problem as U.S. cruises in men’s basketball
The Americans were tied with Venezuela after one quarter, but pulled away in the second to win easily.