RIO DE JANEIRO — The lone Russian track and field athlete at the Olympics has won her appeal and will be allowed to compete.

The Court of Arbitration for Sport ruled early Monday that Darya Klishina is eligible to take part in Tuesday’s long jump qualifying because she has been based outside of Russia for the last three years and has been subjected to regular drug testing.

Klishina was the only one of 68 Russians track and field athlete who was cleared to participate in Rio by the IAAF, track and field’s governing body. It tried to ban her from the Olympics last week, however, after receiving what it said was new information from World Anti-Doping Agency investigator Richard McLaren.

CAS, however, concluded that Klishina “complied with the relevant criteria because of her permanent residence outside Russia … despite the additional information provided by Prof. McLaren.”

POLE VAULT finalists, discus throwers, and hurdlers all went scurrying for cover when rain turned the blue track into a series of pools and puddles.

It only added to a foul weather day.

On Guanabara Bay, a strong wind from the southwest blew across the sailing courses, forcing the medal race in the women’s Laser Radial to be postponed.

At Olympic Stadium, the bad weather almost claimed an Olympic champion. Sandra Perkovic had two fouls in wet and slippery conditions and was one discus throw away from being eliminated. In drier conditions, she achieved the automatic qualifying mark on her last throw to advance to the finals.

The 110-meter hurdles heats were hard hit, prompting organizers to run a special race later in the night.

“It’s atrocious. It’s hard to compete in weather like this,” said Jamaican hurdler Omar McLeod, who won the first heat amid heavy rain. “The water is beaming down in your face and your eyes and it’s real hard.”

SEVEN PEOPLE were injured when an elevated television camera plummeted more than 60 feet to the ground in the Olympic park outside the basketball venue.

The large camera is one of several suspended on cables to provide aerial views of the main Olympic Park. The Olympic Broadcasting Service said two guide cables on its camera snapped, causing it to fall to a lower concourse that feeds into the basketball stadium.