Megan Rapinoe was given a standing ovation following her final regular-season home game with the OL Reign before retiring.
The Seattle club was where she spent her whole 11-season National Women's Soccer League (NWSL) career.
A record 34,130 people attended Friday's scoreless tie with the Washington Spirit.
"It just feels like home. It was always the safest place," said Rapinoe, 38.
"This was just always the place where I could be myself."
Rapinoe's teammates wore number 15 warm-up shirts in her honor before a video tribute starring sports legends such as tennis legend Billie Jean King and Seattle baseball superstar Ken Griffey Jr was displayed at Lumen Field stadium.
"I am a little bit at a loss for words," added the Olympic champion and 2019 Ballon d'Or winner, who announced earlier this year that she would retire at the end of the NWSL season.
"To be able to play here my whole career, in one city - it's just really special to be able to have this."
Rapinoe was greeted by players from both teams as she walked off the field at the end of the game to roars from the fans, which included her partner Sue Bird, a five-time Olympic gold medalist.
"It's been such an incredibly journey," said Rapinoe. "Thank you - to everyone."
The Reign, led by Englishwoman Laura Harvey, are still in play-off contention and will play the Chicago Red Stars in their final regular-season game on October 15.
Rapinoe's international career ended with a friendly victory against South Africa last month.