In December that year, Shim revealed that the abuse went far beyond what had initially been revealed, accusing Cho of rape and sexual assault. Her claims caused a storm within the South Korean sporting world, with several other athletes coming forward, both anonymously and in public, to disclose instances of abuse by coaches.
"The recent series of testimonies about violence and sexual assault in the sports industry represent our shame that has been hidden beneath the glorious appearance of Korea as a sports powerhouse," South Korean President Moon Jae-in said at the time.
While Cho denied the sexual assault allegations, on Thursday a court in Suwon found him guilty on multiple counts, sentencing him to 10 years and six months in prison, as well as 200 hours of rehabilitation.
In a statement, the court said that Cho "sexually assaulted and molested the victim for years" and took advantage of her "inability to resist" due to his position of authority and previous physical abuse of her.
"The accused was in the process of building his career as a coach of the nation's national short track speed skating team, but behind it, he routinely raped and molested his underage students over the years," the court said, adding that Shim had "suffered serious mental damage due to continuous sexual violence from the time of childhood and adolescence."
The judge said that after Shim had "mustered the courage to reveal the crimes of the accused, she had to endure an additional two years of psychological trauma" over the course of the investigation and trial.
Shim's attorney welcomed the verdict in a statement, saying it held Cho to account for his "habitual sex crimes against young players."
"The ruling confirms that the defendant's actions are serious crimes that should not be tolerated in our society, and shows how the darkest parts of our society should be dealt with in the future," the statement said.
It added that Shim "sincerely hopes that today's ruling will help the victims somewhere in our society speak out and incidents like this will never happen again."
Park Seong-min, a lawmaker with the ruling Democratic Party, derided the sentence as too lenient, however, noting that prosecutors had originally asked for a 20 year prison term.
"The dull (gender) sensitivity of the judiciary is deplorable," Park said, adding that the sentence given was a "slap on the wrist" considering Cho's crimes.
South Korea's human rights commission is currently carrying out an investigation, launched following Shim's revelations, into instances of sexual and physical abuse in 50 sports and including both child and adult athletes across a range of levels.
"The seriousness of assaults including sexual assaults in the industry has reached a situation that can no longer be overlooked," commission chairwoman Choi Young-ae told reporters in 2018. "It's a crucial time to establish a fundamental and comprehensive improvement plan, rather than a temporary one."
Also this week, a court in Daegu sentenced a former team doctor for the Gyeongju City Hall triathlon squad to eight years in prison for sexual assault. The court said Ahn Joo-hyeon abused multiple athletes, including Choi Suk-hyeon, who later died by suicide.
Whistle blowers have long pointed to the culture of South Korean sports - particularly elite Olympic sports - as cultivating abuse. Yeo Jun-hyung, a former skater and coach, set up a support group for young skaters because he said accusations were repeatedly swept under the rug by officials and sports associations.
"Inside the sports world, people think violence and verbal abuse are natural, athletes too," one 18-year-old skater told CNN in 2018. "Even if they get hurt and find it hard, people don't speak up about it."
CNN's Gawon Bae and Choi Ji-yun contributed reporting.