Rio de Janeiro
The U.S. team was disqualified — again.
Bolt waved the baton to the crowd after coasting across the finish in a winning time of 37.27 seconds for his ninth Olympic gold medal.
Japan took silver in 37.60, with Aska Cambridge holding off American Trayvon Bromell by 0.02.
The U.S. team was later disqualified for exchanging illegally outside the zone at the first change, and Canada was elevated to the bronze-medal position in a national record 37.64.
It was the ninth time since 1995 that the U.S. men have been disqualified or failed to get the baton around at an Olympics or world championships.
The Japanese team was technically flawless and had the lead going into the last baton change, but Bolt pulled away, as he has done so often, in what is most likely to be his last run at the Olympics.
The U.S. women retained the 4×100-meter relay title and helped Allyson Felix win her record fifth Olympic gold medal.
The Americans, who needed to set a qualifying time in a solo rerun hours after dropping the baton in the preliminaries and getting a second chance on protest, won the final in 41.01 seconds.
It was an impressive comeback after near disaster on Thursday, when Felix dropped the baton after being bumped by a Brazilian runner. That led to the re-run, and the Americans qualified fastest, taking the place of China in the final.
A Jamaican team containing Elaine Thompson and Shelly-Ann Fraser-Pryce, took silver in 41.36. Britain won bronze in a national record 41.77.
The 30-year-old Felix entered the games as one of six women with four Olympic gold medals in track and field.
Felix ran the second leg for the Americans, the same section as 100- and 200-meter gold medalist Thompson, and passed to English Gardner, who ran a powerful curve to give her team the lead.
Tori Bowie ran the anchor leg and held off Fraser-Pryce as the Americans only narrowly missed the world record.
Jenn Suhr broke down in tears after failing to defend her gold medal in the pole vault and said she’s scared about her health.
The American says she’s been sick for 10 days, was coughing up blood Friday and is now concerned her illness is worse than a respiratory infection.
Ekaterini Stefanidi of Greece won the gold medal in the women’s pole vault with a mark of 4.85 meters.
Vivian Cheruiyot of Kenya won the women’s 5,000 meters gold in Rio after overtaking Almaz Ayana of Ethiopia and setting an Olympic record of 14 minutes, 26.17 seconds.
Vivian Cheruiyot of Kenya set an Olympic record to win gold in the 5,000 meters, coming from behind to beat favorite Almaz Ayana of Ethiopia.
Other highlights from Day 14 of the Rio Games:
Golf Gold: At the Olympic Golf Course, Inbee Park will take a two-stroke lead into today’s final round after keeping her composure in strong wind and making two late birdies to regain the lead and post a 1-under 70. Lydia Ko, a 19-year-old Kiwi and the No. 1 player in women’s golf put herself in contention thanks to the first hole-in-one of her career. Also two shots back in the final group is Gerina Piller.
Wrestling Upset: Defending Olympic and world champion Jordan Burroughs was stunned in the quarterfinals of men’s freestyle wrestling. It was the third international loss for Burroughs, who won gold in London in 2012 and whose charismatic, social media-friendly persona has made him the face of wrestling in the U.S.
Snack Attack: Talk about the shoddy construction or the filthy water. Just don’t rip on Brazilians’ favorite snack, called Biscoito Globo. Residents of Rio de Janeiro have been irked by bad review of the stuffy, puffy treats. Just like they took offense to Hope Solo’s tweets about the Zika virus.
Also annoying locals have been comments about why coffee cups and men’s swimsuits are so small here.