Forum Archive : Ratings

MSN Zone ratings flaw From:   Hank Youngerman Address:   redtop@redtopbg.com Date:   16 May 2004 Subject:   Re: Most efficient way to improve your FIBS rating. Forum:   rec.games.backgammon Google:   89tea0lihp9ofgj1l0rrhqujdsenqeqml8@4ax.com On the MSN Zone, the rating system is totally flawed. Ratings are rounded to the nearest integer. So if you are a 2000 player playing a 1557 player (I chose that number carefully) in a 1pt match, you will go up 1.51 points when you win, and drop 2.49 points when you lose. Those round to 2 and 2. So you can effectively manipulae your rating upward by 443 points on the Zone. If you can play only other manipulators, you can get your rating to 443 points above THEIR rating. Thus, there are players on the Zone with 2600 ratings who have NOT gotten them by dumping from stooge accounts.   Did you find the information in this article useful?           Do you have any comments you'd like to add?

 

Ratings

Constructing a ratings system  (Matti Rinta-Nikkola, Dec 1998) 

Converting to points-per-game  (David Montgomery, Aug 1998) 

Cube error rates  (Joe Russell+, July 2009) 

Different length matches  (Jim Williams+, Oct 1998) 

Different length matches  (Tom Keith, May 1998) 

ELO system  (seeker, Nov 1995) 

Effect of droppers on ratings  (Gary Wong+, Feb 1998) 

Emperical analysis  (Gary Wong, Oct 1998) 

Error rates  (David Levy, July 2009) 

Experience required for accurate rating  (Jon Brown+, Nov 2002) 

FIBS rating distribution  (Gary Wong, Nov 2000) 

FIBS rating formula  (Patti Beadles, Dec 2003) 

FIBS vs. GamesGrid ratings  (Raccoon+, Mar 2006) 

Fastest way to improve your rating  (Backgammon Man+, May 2004) 

Field size and ratings spread  (Daniel Murphy+, June 2000) 

Improving the rating system  (Matti Rinta-Nikkola, Nov 2000) 

KG rating list  (Daniel Murphy, Feb 2006) 

KG rating list  (Tapio Palmroth, Oct 2002) 

MSN Zone ratings flaw  (Hank Youngerman, May 2004) 

No limit to ratings  (David desJardins+, Dec 1998) 

On different sites  (Bob Newell+, Apr 2004) 

Opponent's strength  (William Hill+, Apr 1998) 

Possible adjustments  (Christopher Yep+, Oct 1998) 

Rating versus error rate  (Douglas Zare, July 2006) 

Ratings and rankings  (Chuck Bower, Dec 1997) 

Ratings and rankings  (Jim Wallace, Nov 1997) 

Ratings on Gamesgrid  (Gregg Cattanach, Dec 2001) 

Ratings variation  (Kevin Bastian+, Feb 1999) 

Ratings variation  (FLMaster39+, Aug 1997) 

Ratings variation  (Ed Rybak+, Sept 1994) 

Strange behavior with large rating difference  (Ron Karr, May 1996) 

Table of ratings changes  (Patti Beadles, Aug 1994) 

Table of win rates  (William C. Bitting, Aug 1995) 

Unbounded rating theorem  (David desJardins+, Dec 1998) 

What are rating points?  (Lou Poppler, Apr 1995) 

Why high ratings for one-point matches?  (David Montgomery, Sept 1995) 

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