Imagen The Ponds Forge International Sports Centre will be the venue of the Sheffield 2021 World Series in April ⒸGeorgie KerrBy World Para Swimming World Para Swimming announced on Friday (18 December) the provisional calendar for the 2021 World Series. It will be the first time the series take place in the year of the Paralympic Games, giving athletes the chance to compete in high-level events in preparation for Tokyo 2020. The 2021 World Series have five confirmed stops with another leg set to be announced in January. Sheffield, Great Britain will receive the season-opener World Series from 8-11 April in the Ponds Forge International Sports Centre. The British city returns to the World Series after being part of the 2017 and 2018 seasons.