The first person to achieve a publicly witnessed and verified perfect score without manipulating the game's hardware to freeze play was Billy Mitchell, who performed the feat on July 3, 1999. Some recordkeeping organizations removed Mitchell's score after a 2018 investigation by Twin Galaxies concluded that two unrelated "Donkey Kong" score performances submitted by Mitchell had not used an unmodified original circuit board. As of July 2020, seven other gamers had achieved perfect "Pac-Man" scores on original arcade hardware. The world record for the fastest completion of a perfect score, according to Twin Galaxies, is currently held by David Race with a time of 3 hours, 28 minutes, 49 seconds.