Price of losing too high for long games
May 13, 2013 10:06 PM
First, I would like to thank the administrators for the recent changes made to the game. Emphasis on winning games and not difference in the score is exactly what the game needed. It makes it much more like real curling and eliminates the need for higher ranked players to humiliate lower ranked players to keep their rating.
However I do think that a minor adjustment would make the rating system more fair for all. I played a 10 end game against an opponent with a rating 21 points less than mine. It was a tight game all the way, but I won with a single point in the 10th end. I gained 23 rating points for the game. I thought that was too generous for playing a nearly equally rated opponent. It started me thinking about how the ratings are calculated.
I was confused at first, but with some help from TI-KASS, I discovered how it works. For those of you that are confused with the system, here is how it works:
If you play a 4-end game, If you win the game, REGARDLESS OF THE FINAL SCORE, The systems calculates the new ratings as if you won 1 end by a 4-0 score, with differences in ratings factored in. In a 2-ender, it uses 2-0, 6-ender 6-0, etc.
For the 10 end game I mentioned above, I was awarded a 10-0 single end win, which is why I got the 23 point increase.
I went to the ratings calculator on the FAQ portion of this page and compared the rating increase/decrease based on the number of ends played. Below are the results for 2 players with the same rating:
10 ends: +/-25
8 ends: +/-22
6 ends: +/-19
4 ends: +/-14
3 ends: +/-10
2 ends: +/-7
If a player is concerned about his rating, this is a problem. If a players loses a 10 end game, he would lose 11 more points than if he lost a 4 end game. A player might rather play a shorter game to lower his risk of losing points.
Since the changes in the rating system is supposed to reward winning GAMES, why shouldn't the change of rating be independent of the number of ends played?
I have a minor modification that would get rid of this issue. As in FIFA football, a win should be calculated as a 3-0 single end win and draws should be 1-1, REGARDLESS OF THE NUMBER OF ENDS IN THE GAME. The ratings change for evenly matched players would be 10 points for a win, which is not excessive.
Thanks for reading this rather long post, please let me know your opinions.