Forget LP per game for a minute. Two stats decide where you are heading: top 4 rate (% of games you finish 1st through 4th) and average placement (your mean finish). Top 4 rate of 50% is the breakeven point. 55%+ means climbing, 60% is Diamond pace, 65% pre-Master, 70%+ apex. Average placement is the same idea flipped: 4.5 breakeven, below 4.0 climbing, below 3.8 is Master-level skill regardless of your visible rank. These are the two numbers matchmaking uses to set LP, which is why the checker above weighs top 4 rate into the MMR estimate.
Now the actual LP table. Base numbers get scaled by the gap between your MMR and the lobby average. Typical mid-tier ranges look like this:
- 1st
- +35 to +45 LP
- 2nd
- +25 to +35 LP
- 3rd
- +15 to +25 LP
- 4th
- +5 to +15 LP
- 5th
- −5 to −15 LP
- 6th
- −15 to −25 LP
- 7th
- −25 to −35 LP
- 8th
- −35 to −50 LP
Two hard floors Riot has published: top 4 never loses LP, minimum gain on 4th is 10; bottom 4 always loses, minimum loss on 5th is 10. No promo series, 100 LP auto-promotes with overflow carrying over.
Three things speed climbing. Stick to 2-3 comps you know, consistency beats meta-chasing. Stop after 2-3 bottom-4 finishes in a row, tilt costs more MMR than any one bad lobby. And Standard and Double Up have separate MMRs, so the wrong queue won't tank your main rank.