The 2019–20 ISU Challenger Series was held from September to December 2019.
It was the sixth season that the ISU Challenger Series, a group of senior-level international figure skating competitions, was held.
[3] The Sports Administration of the Republic of China ordered the removal of Chinese Taipei Skating Union Secretary-General Eddy Wu for mishandling this situation.
[4] The Sports Administration also suspended funding of the Chinese Taipei Skating Union for one year.
[5] The ISU Challenger Series rankings were formed by combining the two highest final scores of each skater or team.