Offside decisions using VAR were often slow, with lines drawn manually.
Semi-automated offside technology (SAOT) uses cameras and software to speed up the process.
How it works
Multiple cameras track points on players’ bodies many times per second. Software models player positions and flags potential offsides, which are then confirmed by video officials.
The “semi” part
Officials still check and confirm decisions. The technology assists rather than replaces humans.
Benefits
- ▸Faster decisions
- ▸More consistent line placement
- ▸3D animations to explain decisions to fans
Debates
Very marginal decisions still provoke debate about whether offside should be judged so precisely. See our VAR and offside rule guides.
Where it is used
Semi-automated offside technology has been used at major international tournaments and in several top leagues, with more competitions adopting similar systems. Implementation requires many specialised cameras around the stadium, so it is more common at elite level than in lower leagues.
This is general sports information and commentary. Rules, schedules, and records change — check official league, federation, and event sources for the latest details. Consult a qualified coach or medical professional before starting a new training programme.