Six boards are collected daily at 05:35 KST: Circle weekly 200, Apple Music Korea 100, TJ Top 100, TJ Rising 100, KY weekly, six music shows' #1s and official-channel YouTube velocity.
For each board we add (N + 1 − rank) ÷ N × weight, where N is the board size. Music show wins within 14 days add +0.5 each (max 1.0); YouTube counts views ÷ hours since upload for this week's top 20 only, weighted 0.5.
Top 20 on four boards earns GRAND; #1 on one board plus top 20 on three earns CROWN. The six boards above are the only inputs; single-service charts and votes are not used.
The figures come from 2,590 music show wins gayo.wiki has compiled since 2012 across six shows (The Show, Show Champion, M Countdown, Music Bank, Show! Music Core, Inkigayo) and from Circle Chart, Apple Music, TJ, KY and official YouTube data recollected daily at 05:35 KST. Last refreshed 2026-09-26.
Related pages: Records (all-time and this-year tables), Fandom League (this year's standings), each show's hub (yearly and per-episode lists with heatmaps), the Karaoke hub (numbers and picks) and monthly recaps. If a figure looks wrong, use the contact page and confirmed corrections go into the next publish.
Chart 100 is built from six boards collected every morning: the Circle weekly chart, Apple Music Korea, TJ Top, TJ Rising, the KY weekly chart, the #1s on 6 music shows, and the view velocity of videos on official YouTube channels.
On each board a song's rank is turned into a score and multiplied by a weight, and the results are added up. The weights are Circle 1.0, Apple Music 0.8, TJ Top 0.6, TJ Rising 0.4 and KY 0.5; each recent music show win adds 0.5, and YouTube counts only this week's fastest-growing videos at 0.5. A song in the top 20 on four or more boards earns GRAND, and a #1 on one board plus top 20 on three earns CROWN.
Scores and ranks are recomputed daily, and each song page shows which boards it is on and where.
written 2026-09-26