Handball Hub
The #1 handball app globally.
AI system that detects, classifies and scores cheerleading actions from competition footage, in production with USASF judges since 2022.
CARA started as a research collaboration and became core scoring infrastructure for one of the largest cheerleading federations in the US.
Sport-specific actions, occluded performers, fast-moving cameras and a hard requirement for explainable outputs that judges could review on tablets at competitions.
PyTorch model with a custom temporal attention head, deployed via Triton, with a review UI that surfaces frame-level evidence for every classification.
Temporal model classifies 16 distinct cheer actions from raw video.
Every score links to the frames that triggered it.
Tablet UI lets judges accept, override or annotate outputs.
Score records pin the exact model version used, for audit.
Judge overrides feed straight back into the training queue.
Deployable on a federation laptop for off-grid venues.
Boring tech where boring is right, sharp tech where it counts.
Identity is the rare partner that can sit at the table with our science team as a peer. They build production infrastructure that our judges actually trust.
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