「io.LEAGUE 2025」Day1 第1試合 【プロト京都 VS イグナイト東京】

Some PBAs use this scoring system to make it "more understandable".

A strike is automatically 30, and a spare is automatically 10 + the number of your initial throw. So if it's 9 and spare it's 19, an 8 and spare it's 18 and so on.

And to keep a prefect game 300, the 3rd throw on the 10th frame is removed.