The postponement of the Tokyo 2020 Paralympic Games until 2021 and the shutdown of the sport at present due to the coronavirus pandemic mean the window to stage events has shrunk.

Chiba in Japan is set to host the next Men's Under-23 World Championship and the IWBF is now intending for that to take place in December 2021, three months after the rescheduled Paralympics.

The IWBF said it is working with the Organising Committee in Chiba to confirm dates.

Dubai in the United Arab Emirates was announced as hosting the 2022 World Championships last year and the IWBF is now planning for the event to take place in November, although this is not yet confirmed.

That would allow more time for qualification and also be a month when average temperatures in Dubai are not at their peak.

"Although the exact dates are yet to be confirmed, we wanted to provide all our federations and athletes with the proposed changes as soon as possible to assist with their long-term planning," Charlie Bethel, chairman of the IWBF Competition Commission, said.

"On behalf of the IWBF Executive Council, I would like to thank all our zones and NOWBs [national wheelchair basketball organisations] for their understanding and support with regards to these adjustments as we know it may impact on some NOWBs' 'usual league dates' and competition schedule. 

"However these are unprecedented times we are facing, which is much bigger than our sport, and we believe some slight modifications to the calendar will ease the pressures on all involved."

In addition to the proposed dates for the tournaments, the IWBF also revealed that a repechage tournament which would provide a route to the 2022 World Championships will be scrapped to allow enough time to complete regional qualifying events.

A repechage tournament is hoped to come into force after the World Championships to offer a route to the Paris 2024 Paralympic Games.