Announced by Riot Games in a blog post, the charity stream will play host to special exhibition matches and competitions between leagues across an entire weekend.
Promised events include a continental battle between teams in Europe, an influencer battle between Yoda and Kami in Brazil, and a Mid-Season Cup showdown between the top teams in the LCK and LPL.
Donations from the stream will be donated to nonprofit organisations supporting COVID-19 relief efforts, including the ImpactAssets COVID Response Fund and GlobalGiving Coronavirus Relief Fund.
Riot has announced the Mid-Season Streamathon (Picture: Riot Games)
The charity stream starts Friday 29th May at 5pm PDT/1am BST and runs until Sunday 31st May.
More details on special guests and events will presumably be announced in the lead-up, so watch this space.
What is the schedule for the Mid-Season Streamathon?
The Mid-Season Streamathon schedule (Picture: Riot Games)
How can I watch the Mid-Season Streamathon?
The charity stream will be broadcasted at watch.lolesports.com.