Ranking System Vote

[evkl]

Hey guys, I'm conducting this vote because I want to know if the Elo-style rankings I put together for battling are cool with the community at large. Basically, the rankings reward both victory and margin of victory, and take into account the difference in talent of players.

I'm going to c&p the ranking system for those who want to read it. By this method, rankings would probably be recalculated every week.

PS--if anyone is an outrageously good web designer who could create a login-based system to record battle results, and then kind of work it all through to fully automate that, it'd be incredible and if you did that you'd probably get an instant job at Bulbagarden, so contact me.

Thanks!
~Evan

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PokeBARS – Pokemon Battle Aptitude Rating System

This system is based on the Elo World Football Rankings. In order to be ranked, I suspect a player will need to battle 5 to 10 times, recording the outcome of every battle. And so here it is.

P = R * M * (W – We)

Where:
P = points gained/lost
R = Battle rating (see table 1)
M = Margin of Victory coefficient (see table 2)
W = Outcome of the match. 1 for a win, 0 for a loss.
We = Expected outcome of the match (see equation 1)

Table 1
Battle Rating Table

Type of Battle:R value

Sanctioned Tournament, Final Round: 60
Sanctioned Tournament semi-final battle or non-sanctioned tournament final match:50
Other tournament battle:30
Friendly battle:20

Table 2
Margin of Victory table

Margin of Victory/M value
1-0/1.5
2-0/1.75
3-0/1.875
4-0/2
5-0/2.125
6-0/2.25

Equation 1
Expected Outcome Equation
(From wikipedia.org)

where We is the match's expected result, and dr is the difference in rankings between the two players. For an unranked player, expected outcome is .5 (indicating ambiguity in the result of the match)

 

[Rivers]

I think it would be a fair way to gauge a players skill. Obviously there might be issues if someone doesn't play regularly, but on the whole I think that it would be a good idea.

 

[evkl]

We could do an inactivity penalty--say, 5% or so every 2 weeks inactive?

 

[Rivers]

That seems like a fair deal as if you're inactive for longer than that you shouldn't really expect to keep the same rank.

 

[wobbaone]

hey im currently working on the login/ranking system, still will take a few weeks though... ive figured out how to retrieve from files, its just writing to them now... give me time, ill have the system... hopefully...

 

[wobbaone]

woop! update on ranking system! reading data from a central location is done. so about 5% is done... might not seem like much but it means im making progress.