So IP Is calculated with the following formula: BASE IP + Match bonus + (BASEx2 for day boosts + ~100 IP for per win boosts) + First Win of the Day Bonus [if applicable].
- So if you remove 'First Win of the Day' bonus which adds 150 IP to your reward... you are left with something like this: BASE IP + Match bonus + (BASEx2 for day boosts + ~100 IP for per win boosts)
- Boosts are available for purchase with RP in the PvP.net store. There are two different types of boosts available in League of Legends --- ‘Days’ and ‘Per Win’ boosts.
- (‘Days’ based boosts double the base IP earned from a game. For example if you earned 100 IP, a day boost would add an additional 100 IP boost to your account for a total of 200 IP. ‘Per Win’ boosts add a flat amount of around 100 IP per game.)
Now I assume you aren't using boosts, and that you didn't get the first win of the day bonus. Which means your IP is calculated: BASE IP + Match Bonus
For a win you get "18 + 2.312 * game length(minutes) = ip"
And if you loose you will get "16 + 1.145 * game length(minutes) = ip"
In a 30 minute game that looks like this:
For a win you get "18 + 2.312 * 30 = ip (87.36)
And if you loose you will get "16 + 1.43 * 30 = (58.9)
TOO LONG DIDNT READ READ HERE:
With some of the IP math out of the way we need to consider the following:
Games from 20 to 55 mins gain about 64 IP to 145 IP for a win.
Games from 20 to 55 mins gain about 45 IP to 95 IP for a loss.
As I understand you, a 20 minute game gives 45 IP (around) for a loss.
A 60 minute game gives 95 IP (around) for a loss.
Thus you are saying 45 IP x 3 games = Much more than 95 IP (1 long game).
What you haven't factored in was:
2 mins in Que waiting for a game
5 mins in champ select
5 mins in load screens
So your "20 min game" is closer to 30 or even 40 minutes depending on loaders.
Any way you look at this, there really isn't a way to get 5 consistent people to surrender at 20 mins and load instantly into a new game, blow through champ select and make huge IP gains.... Even if you were doing this with friends you would be gaining about 25 extra IP an HOUR.... wouldn't quality practice and just enjoying the game be worth much more than that?