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```python
def expected_score(self, competitor):
g_term = self._g(math.sqrt(self.rd ** 2 + competitor.rd ** 2) * (self.rating - competitor.rating) / 400)
E = 1 / (1 + 10 ** (-1 *…
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Like if you win by 7-0, you should get more points than if by 7-1
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### Is your feature request related to a problem? Please describe.
There seems to be a problem of the current matchmaking system that matches up to one rank up or down. This could be a challenge for …
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Kind regards, developers of Lichess!
You forgive my poor English. I use Google Translate to communicate. My native language is Spanish.
My username in Lichess is "Ugalde".
My real name is Jona…
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(Could be a markdown file in this repo or this issue stickied? Also maybe pinned in the chat and in `#resources`)
Goal: to avoid users encountering common issues from repeating the same things in t…
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Currently fooskill uses Glicko-2 rating, which is great when you have rating periods with lots of games (~15 per player per rating period). However, when the number of games per rating period is relat…
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If fooskill is set to use Glicko-2 (cf. Glicko) it will use the rating volatility parameter on the API and admin page; otherwise it won't.
The way I've implemented this involves a lot of repeated c…
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### Summary
Following thread discusses harmfulness of introductory 13k base rank. Whether the current solution is really harmful and prevents new comers from staying around on the server is beyond …
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"Every team has an Elo32, Elo64, Glicko and Glicko 2 rating
for a team to be shown on the ratings page, the team must have a Glicko 2 Phi value (RD equivalent for Glicko 1) below 70.0 to be shown.
i…
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At some point while playing TF2 Competitive Matchmaking I only got 0 MMR after a win. Before (shortly after getting ranked as Rank 9) I got awarded MMR normally.
If I now lose a game, I lose 1 MMR, …