On Monday, I played one ranked game and got 20 LP for the win.
On Tuesday, I played 4 ranked games, winning all of them and gaining 18 LP for 3 wins (4th win put me in promos).
Interesting, because I have been under the impression that winning games was supposed to increase my LP gains, not the other way around. But then is anyone actually surprised?
Yes and no, the game has a slight idea about your skill level. You're winning, but the Lp gain is lowered because they think you're not currently at that level. If you keep winning or rarely lose, your lp gain will skyrocket.
anyways gl!
It also varies based on your opponents.
What this tells us it that on Day 1, the opposing team had a higher average MMR than the opposing teams on Day 2 did.
Beating higher MMR opponents is worth more LP.
