TOKYO—Their scrapbooks and trophy cases are filled with memories from Final Fours, national titles, All-America honors, and even some impressive showings in the pros. Now, they have Olympic gold medals to go with all that. The U.S. team of Stefanie Dolson, Allisha Gray, Kelsey Plum, and Jackie Young took an early lead against the team from Russia, then held on for an 18–15 victory Wednesday to win the title in the debut of 3-on-3 basketball at the Olympics. “It feels surreal,” Dolson said. “In 10 years, we’ll look back and say ‘Damn, we did that.’ Hopefully, we started something.” Dolson did the honors during the medals ceremony, taking the gold prizes and placing them over her teammates’ necks. They stood with hands over hearts during the national anthem. Their celebration couldn’t beat Latvia’s, though. After Karlis Lasmanis drained a shot from behind the arc to close out the men’s final, …