AI fencing referee
Film a sabre touch on your phone. Verdict reads right-of-way and makes the call — with the action breakdown to back it up. No hardware, no argument.
Free tier at launch · One email when your spot opens — no spam.
How it works
Verdict was built for the reality of club fencing: one camera, ordinary lighting, no setup.
Any modern phone, landscape, anywhere with a view of the strip. Record the touch — a few seconds is all Verdict needs.
Verdict tracks both fencers and both blades, reads the phrase, and applies right-of-way the way a referee does.
A full breakdown follows: skeleton overlay, blade trajectories, and the action call in plain language — attack, parry-riposte, counterattack.
Clear calls
Two lights and a shrug used to mean a five-minute argument. Now it means tap, get the call, and fence on. Verdict determines right-of-way from video alone — no wired scoring box, no special hardware.
Explained decisions
Every call comes with the reasoning: who initiated the attack, where the parry landed, when the counterattack arrived. It's the feedback loop of having a certified referee at every club night — for every fencer on the strip.
Coming after launch
Win rate by action. Attack speed over the season. What works against lefties. Verdict remembers every touch you film, so you and your coach can see patterns no notebook ever caught.
Accuracy, honestly
An AI referee has to earn trust the same way a human one does: by being right, and by being accountable when it isn't.
Keypoint accuracy on guard, midpoint, and tip — measured on held-out competition footage at full lunge speed.
Every training label reviewed by experienced referees. The model learns from real calls, not synthetic data.
When Verdict is sure, it's right — 92% on its most confident two-light calls. When it isn't sure, it says so instead of guessing.
One-light touches are unambiguous — the light decides. Verdict's AI is aimed at two-light right-of-way calls, the ones humans argue about. That's where we publish per-action accuracy, our test methodology, and what Verdict can't call yet. Read the full accuracy report →
FAQ
Any phone from the last ~5 years. Landscape orientation, a sideline view of the strip, normal gym lighting. No tripods, sensors, or wiring required — though a propped phone beats a shaky hand.
Sabre first. It's the fastest weapon and the hardest right-of-way problem — if Verdict can call sabre, the rest follows. Foil and épée are on the roadmap.
No — it replaces the argument at club night when there's no referee to be had. For the touches a certified referee should call, Verdict is a second opinion and a training tool.
There will be a free tier at launch — film a handful of touches every month at no cost. Paid plans add unlimited calls and analytics. See planned pricing — early-access members get launch pricing locked in.
Early access opens this season. Free tier included.
Free tier at launch · One email when your spot opens — no spam.