Press Spacebar or tap the display to start and stop timing your solves.
Hold spacebar until green to start
| # | Time | Scramble | Action |
|---|---|---|---|
| No solves recorded in this session yet. | |||
Our online Speedcubing Practice Timer is engineered to mirror official World Cube Association (WCA) competition timing regulations. Featuring millisecond precision, keyboard spacebar triggers, official scramble generation, and live Ao5 and Ao12 trimmed statistics, it provides everything a competitive speedcuber needs to track their development.
Understanding competitive timing rules, inspection mechanics, and penalty standards separates casual hobbyists from disciplined tournament competitors.
In official WCA competitions, competitors have up to 15 seconds to inspect the cube before their first move. Starting between 15.01s and 17.00s incurs a +2 second penalty; starting after 17.00s results in a DNF (Did Not Finish).
To prevent lucky skips or lock-ups from distorting your rating, the WCA uses trimmed mean averages: In an Ao5, the fastest and slowest times are dropped, averaging the remaining 3 times: Ao5 = (T2 + T3 + T4) / 3.
A +2 second penalty is applied if a layer is misaligned by more than 45 degrees at the finish. A DNF is assessed if multiple moves remain or if the timer is stopped while hands are still turning a face.
Hold down the Spacebar until the status displays green, then release to begin timing. Tap the Spacebar or click the timer box to stop timing.
Ao5 is Average of 5 and Ao12 is Average of 12. Both discard the single best and single worst times to compute a fair trimmed mean of your solving speed.
Master faster methods, study algorithms, or switch up puzzles.
Solidify your foundational solve habits for faster lookahead.
Algorithm Cards →Practice finger tricks for Righty, Lefty, Sune, and Niklas.
Scramble Reading →Learn how to read scramble letters accurately and quickly.
Other WCA Events →Expand your timing sessions into pocket and revenge cubes.