I couldn’t verify an exact count of pro players using WASD in League from the available public sources, and the current material I found only confirms that Riot rolled WASD out to the game and ranked play, not a player-by-player adoption tally.

What can be said now

  • WASD was officially introduced for League and later expanded into ranked play.
  • Public reporting I found discusses the feature’s rollout and reactions, but not a reliable census of pro usage.
  • Because pro players can switch inputs privately and teams do not usually publish keybind data, any exact number would be guesswork rather than a verified statistic.

Best practical answer

At this point, the honest answer is: no publicly verified count is available. If you want, I can help turn this into a stronger post by reframing it as a “how many pros are suspected to be testing WASD?” discussion with clearly labeled speculation.