The 3sL // 3's League - Masters Series

3sL — 3's League is Hertfordshire FA's first FA-sanctioned 3v3 Small-Sided youth football competition league. 

Mid-week Football at Stevenage FC Performance Centre. U6 to U14.

This channel is where GameDay lives — match footage, player moments, and everything that happens when you give a child more touches, more decisions, and more involvement every session.

Find us at 3sl.app

3sL delivers a modern, behaviour-first football environment built around high-density 3v3 play. Our work focuses on creating more actions, more decisions, and more meaningful moments for every player — from grassroots to academy level.

3sL operates across youth development, performance support, community access, and club partnerships, offering a consistent, scalable format that strengthens individual development, enhances behavioural insight, and preserves the identity of every football environment we work with.