League of Legends Stats - 'Role' value 'MID' has a maximal 'KDA' of 59.24 at 'Tier' set
Blitz, the best tracker for players to win League of Legends
Spellsy's Stat Cards - LoL quick guides for Mid Laners - GameSpot
Patch 12.1 Rewind: Top 10 Champ Stats by Rank (Kills, Win Rate, Deaths, and More) - Mobalytics
League of Legends Stats, Build, and Counters
League of Legends Teamfight Tactics Champion Stats | All Champion Stats
League of Legends: Summoner Stats, Match History and Champions Builds – Win More with Mobalytics LoL Stats
I made a tool that allows you to find the mathematically correct build for any champion (also includes a Practice Tool simulation where you can attack any champ instead of a dummy) :
Old school Talon player here, Finally reached million mastery score on my all time favourite champion! (+ stats) : r/Talonmains
The Five Best League Of Legends Stat Apps, Tools and Websites | by Mark | The Emergence | Medium
Patch 11.23 Rewind: Top 10 Champ Stats by Rank (Kills, Win Rate, Deaths, and More) - Mobalytics