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arempe93 / sexy_nhl_stats

Pulls NHL stats and displays them in an interesting manner
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ELO System #16

Open celic opened 9 years ago

celic commented 9 years ago

http://en.wikipedia.org/wiki/Elo_rating_system

celic commented 9 years ago

Example:

p d_p
1.00 +800
0.99 +677
0.9 +366
0.8 +240
0.7 +149
0.6 +72
0.5 0
0.4 -72
0.3 -149
0.2 -240
0.1 -366
0.01 -677
0.00 -800

Performance rating = [total_opp_rating + 400 * (wins - losses)] / games

Using this, starting point is arbitrary (a), best team would end up at ~800+a and bottom team would be ~a-800.

celic commented 9 years ago

We can use the difference between two teams ELO to determine how lopsided a win would be to go along with winner predictions. We could be like winner 2+ goals, or winner <1 goal for a close game.

arempe93 commented 9 years ago

HockeyLO™