TOKYO—Puerto Rico’s Jasmine Camacho-Quinn won the women’s 100 meters hurdles gold on Monday, blitzing the field despite hitting one hurdle to finish in 12.37 seconds at Tokyo’s spectator-free Olympic Stadium. American world record holder Kendra Harrison won silver in 12.52 and Jamaican Megan Tapper took bronze in 12.55. Camacho-Quinn exploded off the blocks and strode shoulder-to-shoulder with Harrison, accelerating through the finish to win her first-ever Olympic medal and Puerto Rico’s first of the Tokyo Games. Harrison and Tapper faced an agonizing wait as officials analyzed their photo finish, with the bronze medal-winner looking up at the screen and saying “pray Jamaica,” as she awaited the results. The victory capped a dazzling performance in Tokyo for Camacho-Quinn, who broke the Olympic record in her semifinal a day earlier. She told reporters she nearly fell during the final, five years after she crashed out of her semifinal in Rio de Janeiro. …