How to get the statistics of LoL which is not shown in the official site

Question

I saw this on LoLwiki
_{(source: qpic.cn)}

I noticed the projectile speed here is not shown in the official LoL site.

How to get the statistics like this? By hacking or do some test in a LoL game?

Answer 1

• Some are given by developers on the forums.
• Some are mentioned (see galio) in patch notes.
• Some are pulled straight from the data files.
• Some are calculated using their observed movement in game.

Note that projectile speed uses the same unit type as movement speed.