Forum Archive :
The number of ranked BG players on FIBS has finally hit 5000. As the pool
of ranked players grows, (like a growing pile of sand) the ratings at the
extremes extend outwards. The height of the pile, which measures the number
of average players in the distribution, grows.
This has been enlarging the ratings bell curve in the last two years.
In early 1995, a rating of 1900 ranked you as number 7; (just reaching 1900
was a milestone for experts) 1800 put you in the top 80 which would have
been in the top 5% of players.
Today 1900 doesn't even get you in the top 40 and 1800 leaves you ranked
Seems to me the better way to measure your skills and progress learning the
game is not by way of your actual numerical rating but rather your relative
level in the overall pool of players. Do you fit in the top 1%, 3% or 10%
or wherever. If your rating climbs and you fall into a lower percentile
category, I'd say your skills are not keeping pace. A rising rating may not
mean you are improving if you don't move into a higher percentile.
For the statistically inclined....
If the FIBS ranked player pool doubled to 10,000, what would be the likely
rating range of the top 1% of players ?
What would be your rank if you hit 1800 and 1900?
Calgary, Alberta Canada
- 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)