This is what a RefereeAI player profile looks like: every match we analysed for one player, their totals, their angles and the coaching thread. This sample is built from one public rally filmed by a fan at the Miami Open (CC BY). RefereeAI is not affiliated with the player or the tournament.
Sinner on his own: skeleton, knee and elbow angles, the rest dimmed. Video: Court Level Fans, CC BY.
Sport: tennis · Plays right-handed
The angle at his hitting elbow at the moment of each contact where the ball was seen at his hand. 180° is a straight arm. Six of his seven shots; on the first, the ball wasn't visible at his hand.
With every new match, each angle lands on the same chart, so the trend across matches shows here.
Same rally, very different arms: 92° at 0:17 against 178° at 0:04. Put those two contacts side by side and pick the one you want to repeat.
Finishes the rally at the net. Video: Court Level Fans, CC BY.
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