But the woman said no one from the university reached out to her to offer assistance or interview her as part of a Title IX or student disciplinary investigation, part of which the law says should include an assessment of the alleged victim's needs in order to feel safe on campus and able to continue her education.
"I stayed in my dorm room with the doors locked. ... I don't think I went to class for weeks or maybe even a month," she said.
Recently, the woman asked the university what had been done about her allegations and a university official told her the school had no disciplinary records responsive to her request. This week, the school confirmed to "Outside the Lines" that a Title IX investigation never occurred.
Washington played every game that season and scored 19 touchdowns, leading his team in rushing. The woman said she had to seek therapy, and medical records confirm she was diagnosed with post-traumatic stress disorder.
"I've lost the majority of my faith in humanity," she said. "I lost my self-worth. I was put on antidepressants, anti-anxiety medicine. I have nightmares."
Washington, through his parents, declined to speak to "Outside the Lines" for this story. In 2009, he led the team in rushing again and, in spring 2010, was projected to be one of the best running backs in the Big 12.
After the spring practice season concluded, a Missouri women's soccer player got into a fight with Washington's girlfriend at a bar in Columbia on May 6, 2010. Police arrested and cited both women for fighting. The soccer player told police that, during the fight, Washington walked up and "struck her with a closed fist on the left side of her face."
While at the hospital being treated for the injury to her face, she told police she wanted to press charges against Washington, and a warrant was issued for third-degree assault. But later that day, she came to the police department and said she had changed her mind.
According to the police report, the woman spoke to her soccer coach, who said her scholarship might be in danger because of her arrest. The report stated, "Her coach made her feel as though she would not have any problems with her scholarship if she declined to prosecute Derrick Washington for assaulting her," and that, "If Mr. Washington was arrested, the incident would make the news and the situation with her scholarship might change."
Police closed the case and didn't arrest Washington, whose status with the university and team remained the same. The soccer player, who did not want her name published, said she was never contacted by university officials about the incident. She wrote in an email to "Outside the Lines" that she did lose her scholarship but, with the help of an attorney, was able to have it reinstated.
Just six weeks later, another woman would accuse Washington of sexually assaulting her. She said she was asleep in her bed when Washington came in and put his finger in her vagina. Teresa Braeckel reported the incident to police nearly immediately, and police opened an investigation.
While police were investigating, Washington was named one of four captains of the football team and sent to Dallas to represent the school at Big 12 media days.
In this case, Missouri's Office of Student Conduct did reach out to Braeckel, but she told officials she was concerned that discussing the case could interfere with her criminal case proceedings.