Outdoor sports including football, golf and tennis can resume for amateur players in England from Monday as coronavirus restrictions are eased.
Other facilities such as cricket pitches, basketball courts and outdoor swimming pools are allowed to reopen.
A combination of improving weather and the vaccine rollout is set to boost people's motivation and ability to be more active, Sport England said.
Leisure centres, gyms and swimming pools can open from 12 April.
Venues such as gyms, tennis courts and golf courses have been closed across England since lockdown was announced on 4 January.
"Over the past year we have prioritised the importance of physical activity, permitting basic exercise at all times," said Sports Minister Nigel Huddleston.
"However the reality is that activity levels have still dropped in lockdown. That's why outdoor grassroots sport reopening today is so important."
In horse racing, amateur jockeys will be able to return, having missed out on the Cheltenham Festival but in time for next week's Grand National meeting.
From 29 March
No earlier than 12 April
No earlier than 17 May
No earlier than 21 June
Rules in Scotland, Wales and Northern Ireland
In Scotland, outdoor non-contact sports like golf and tennis are currently permitted along with organised group exercise and outdoor mixing between four people from up to two households.
In Wales, under-18s have been allowed to take part in team sports since Saturday and up to six people from two different households can meet and exercise outdoors. On 22 April, ministers will consider whether to reopen gyms.
Golf and other outdoor sporting activities can resume in Northern Ireland from Thursday, although clubhouses and sports facilities must stay closed.