George Scholey, a Toronto-based runner, set a new Rubik’s Cube mile world record. He completed the run in 5:09.25, surpassing the previous record of 5:22.75.

Scholey solved a Rubik’s Cube before each lap, except the last, during his run. His performance was witnessed by a crowd and documented by videographers and timers. Read more racing coverage.

The record attempt is pending Guinness World Records approval. Scholey, a four-time record holder, expressed confidence in his puzzle-solving ability despite the challenge. Related: Scholey Claims Rubik’s Cube Mile Record in Toronto.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.