Boxing review in 3D

Every exchange,
seen from every side.

Judges and coaches need a clear view of each punch, and fast exchanges blur on video while camera angles hide the contact. VAR Box gives them that view by turning two phone cameras into a 3D replay of both boxers, with every punch timed, sided and classified for review.

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Two boxers rebuilt as 3D bodies in the middle of an exchange
red · right handlanded · head21.2 s into the clip
How it works

Two phones in, a 3D bout out

A session needs two phones on stands and one crack of two planks to line the recordings up. The rest runs on a rented GPU and arrives in the dashboard.

01

Record

Two phones at adjacent sides of the ring, one boxer in red and one in blue. A single plank crack at the start of each round syncs both cameras to the frame.

02

Reconstruct

Each boxer is tracked through every frame and rebuilt as a full 3D body, anchored to the ring floor and merged across both cameras.

03

Review

Every punch arrives timed, with the hand that threw it and its outcome: landed to the head or body, blocked, or missed. Each call links straight to its replay.

For the reviewer

One bout, many ways to look

Layers

The real footage with a switch for each boxer: true pixels, a solid silhouette, the 3D body, or hidden from the scene.

4D replay

Orbit any moment of the bout, slow it to a tenth of real speed, and isolate one boxer to study their form alone.

Punch timeline

Landed, blocked and missed punches marked along the round, filterable by boxer and outcome, one click from the replay.

Before and after

Geometry alone beside geometry plus the trained strike model, so every improvement is visible on the same footage.

Exports

Overlay videos, isolated renders, per-frame data and the full event list, ready to download for the coaching file.

Live progress

Each stage of the analysis reports in as the GPU works: syncing, tracking, rebuilding, scoring and packaging.

First results

Measured on Olympic bout footage

Early tests ran on a public dataset of Olympic bouts with every punch labelled by hand.

12 / 13

Labelled punches found in the first test clip, each one within a fraction of a second.

12 / 12

Found punches credited to the correct hand.

100%

Frames with both boxers tracked across a 30 second exchange.

Built to support the officials

VAR Box is decision support for licensed judges and referees. Every call stays with them, now with a clearer view of each exchange.

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