Offside review has stopped measuring what the rule was for

A skate hovering a centimetre above the blue line is not the problem the offside rule was written to prevent.

The rule exists to stop a player waiting behind the defence for a long pass. That is it. That is the entire idea, and it has been the idea since the blue lines were painted.

Now watch a modern review. A goal is scored, the coach challenges, and four officials spend three minutes looking at a frame where an attacker's back skate is an inch above the ice while the toe of his other skate is fractionally across the line. The rule says a skate must be on or over the line, and a skate in the air is technically not on it, so the goal comes off the board. Nobody in the building believes an advantage was gained. Everybody accepts the outcome because the wording says so.

We built a microscope and pointed it at the wrong thing.

Two objections to my position, both fair. First, a line is a line, and once you allow discretion you get inconsistency, which is how the offside rule became clean and simple in the first place. Second, the challenge system exists because coaches wanted it, and they wanted it because a missed offside used to lead to goals that felt stolen.

Both true. But there is a difference between a player half a body length behind the defence and a player whose skate blade is airborne at the moment his stick carries the puck across. The first is the thing the rule was written for. The second is a rounding error being resolved by video at a cost of three minutes of dead time in a sport that sells itself on continuous motion.

The fix is not complicated and other sports have already found versions of it. Give the attacking player the benefit of contact with the line rather than requiring it, so the raised skate counts. Or define a tolerance and let the review only overturn plays outside it. Either way the review stops being an exercise in freeze-frame archaeology and starts answering the question the rule was asking.

There is a cultural cost too. Every one of these reversals teaches a crowd that a goal is provisional, and the celebration in an arena is now noticeably shorter than it was, because half the building is watching the coach instead of the ice.

We took a rule about advantage and turned it into a rule about photography.