There are four Challenger Tour events in all which have been cancelled and are being remonitored in line with the calendar to find a potential replacement date and those are the following:
- Qujing CH 50 (Week of 2 March 2020)
- Zhuhai CH 80 (Week of 9 March 2020)
- Shenzhen CH 90 (Week of 16 March 2020)
- Zhangjiagang CH 80 (Week of 23 March 2020)
At the moment, the following scheduled events remain on the 2020 ATP Challenger Tour calendar: Taipei CH 125 (Week of 30 March 2020), Nanchang CH 80 (Week of 6 April 2020), Changsha CH 80 (Week of 13 April 2020), Anning CH 125 (Week of 20 April 2020).
https://twitter.com/ATPChallenger/status/1222188219632177152?s=20