Blog
Notes for referees
The Laws, the paperwork and the kit, from the team building Halfline.
Best Apple Watch Apps for Soccer Referees (2026)
REFSIX, RefLIVE and Halfline compared for referees: what each does on the Apple Watch, what it costs, and which one fits the way you referee.
How to Become a Soccer Referee in the US
The steps to your first US Soccer referee license: age, the online course, the field session, background check and SafeSport, and getting games.
USSF Misconduct Codes: Every Caution and Send-Off Explained
The six US Soccer caution codes and seven send-off codes referees use in match reports, what each one covers and how to write them up.
How to Keep Stoppage Time as a Soccer Referee
What Law 7 counts as lost time, three ways to track it during a match, and a simple routine for deciding how much to add.
Refereeing With an Apple Watch: A Pre-Match Checklist
Battery, settings, fit and backups: what to check on your Apple Watch before you walk out to referee a soccer match.