Ratings Floor Question

Running Chess Tournaments
1

Can someone tell me how a ratings floor is determined for a player?

2

There are currently four types of ratings floors:

  1. A player who achieves an established rating of 1600 or higher gets a floor based on his or her peak rating - 200 points, truncated to the 100 point level, ie, a peak rating of 1653 earns a 1400 floor. These ratings floors go from 1400 to 2100.

  2. A player who earns the ‘Original Life Master’ title by playing 300 or more games as a Master gets a 2200 floor.

  3. A player who earns a designated prize amount(currently $2000 or more) that is only available to someone rated 2000 or below (such as a class prize or a place prize in an Under/2000 section) earns a ‘money prize’ floor equal to the minimum rating (truncated to the 100 point level) that would make that player ineligible for that section/prize in the future. For example, a player who earns $2500 in an Under 1800 section earns a floor of 1800.

  4. Since last June, very low rated players (under 150) have an absolute floor of 100 plus 1 point for every event in which they played three or more games, two points for every draw and four points for every win.

Ratings floors and other details of the USCF Ratings System are described in this document: math.bu.edu/people/mg/ratings/rating.system.pdf