The Reinke Roundnet Rating system is, at its core, an ELO rating system. It takes the average rating of both players on both teams for each game, and based on the winner, some rating is exchanged. Both players on a given team will win or lose the same rating after any game, regardless of their relative rating to eachother. The rating exchanged is always zero sum (with the exception of Rating Rerun).

Not as of now, but perhaps in the future. When this happens, it will be in a way that would only ever benefit the winning team, as to incentivize inserting correct scores in fwango instead of 1-0.

Games in a best of 3 are all calculated individually and chronologically. The winners of game 1 will win rating from the losers, and same with game 2 and potentially game 3. This means that you would lose less rating if you were to lose a set 2-1, since in the one game that you did win, you won some rating back. This can make a big difference in cases where a relatively weak team takes a game off of a relatively strong team. For example if the strong team loses game 2 against the weaker team but wins game 3, their rating change might look something like this:

Game 1 (W): +1
Game 2 (L): -49
Game 3 (W): +1
Net: -47

This is an extreme case but you here you can see that the winning team of a set can actually lose a fair amount of rating.

All first round loss games in a single elimination bracket are worth half of those in pools and the regular bracket with the exception of the 3rd place game. This means you win and lose half of what you usually would, had you played this match up in pools or main bracket.

No. Games that are forfeit before their start do not count for any rating change and are indicated in fwango by a negative score for the forfeiting team.

Games that are forfeit in the middle of play for any reason do count for rating change and the score should be recorded in fwango as it was at the time of the forfeit

Your initial rating is determined based on the first Ontario tournament you played. If you signed up for the highest possible open division, your starting rating is set to 1000. If you did not, your starting rating is 500. The same applies to the women's rankings however it has been rare to see more than one women's division in Ontario
There are a few exceptions. The following players had their starting rating evaluated manually:

Player	Year Added	Initial Rating
Preston Bies	2021	1500
Thomas Hamilton	2023	2000
Etienne Cote	2023	2000
Jé Gagnon	2024	2000
Samuel Prince	2024	2000
Maxime Prince	2024	2500

Additionally, if you are one of the 31 players that appeared in the 2020 EOY community voted rankings, you were assigned a (near linearly) scaled rating based on those results. These ratings are as follows:

In short; no. As all ELO systems do, players that are far from their deserved rating are quickly moved towards it. If you start at a much lower rating than you should be, your wins will give you much more rating and your losses will lose you much less.

Consider the following example: The left chart is the top 10 active players as of May 1 2024. The right chart is the same list but we have changed Chris Brown's starting rating to be 500 instead of 1000


After recalculating all games, we see that Chris' rating is now roughly 40 rating less; a relatively small amount given the 500 rating adjustment we made. Chris remains still very clearly the second best player at this time. We also see the next biggest impact is that of Ben's rating (+25). This is explained by the fact that Ben is commonly Chris' partner.

**Every other player in the entire list at this time, not just the top 10, experiences AT MOST a single digit rating change because of our modification (a near negligible difference in the long run).

In theory every tournament played in Ontario should be included, as more data would lead to a more accurate rating list. However, in practice, there a few reasons why a given tournament might be excluded:

- The tournament does not follow the IRF ruleset at the time (eg. Revol, basement tournament, etc...)
- The tournament owner does not want to share the fwango
- The complete fwango does not exist (eg. Individual tournaments, tournaments pre 2021, etc...)
- The tournament was very clearly advertised as one that does not promote competition
- The tournament has many foreign or new players that are not expected to play another Ontario tournament in the near future, making the initial ratings hard to estimate and render the results from majority of games useless (eg. Toronto STS)