I counted every move of 91 million chess games. Here's what I learned.

Automated excerpt

A classical game is almost always 41 moves and 3 hours. The median over-the-board classical game is 41 moves and, at 90 minutes + 30s increment, burns 3 hours 3 minutes across both clocks. Half of games pass move 40; only 14.5% pass move 60. 2. From 1400 to 2600+, the median classical game is 40-42 moves in every rating band. Lichess bullet and blitz games last a median of 32 moves; rapid, 30.

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