I keep seeing references to USCF, BCF and ELO ratings and I understand that ELO is an international rating figure although you can calculate its rough USCF or BCF equivalent through use of a formula (I hope that's correct). My question is, how can you calculate a rough ELO rating from a rating on RHP (or a RHP figure from an ELO one)? It would be useful to know, when someone is described as being at ELO rating X, what that would mean on RHP. I'd have some idea where I stand in the pecking order compared to that person.
Originally posted by C J HorseBCF ratings are not ELO. RHP, USCF, RHP ratinga are ELO. Arpad Elo was a physics professor and chess player. He designed the rating system that was then adopted by the USCF, FIDE, etc.
I keep seeing references to USCF, BCF and ELO ratings and I understand that ELO is an international rating figure although you can calculate its rough USCF or BCF equivalent through use of a formula (I hope that's correct). My question is, how can you calculate a rough ELO rating from a rating on RHP (or a RHP figure from an ELO one)? It would be useful to ...[text shortened]... ld mean on RHP. I'd have some idea where I stand in the pecking order compared to that person.
Ratings from one pool of players so not transfer to another, however, even though they may be using the same formula. My RHP and USCF ratings are comparable (within 100 points), but some are much higher here and others substantially lower.
On ELO ratings, Wikipedia has a reasonably accurate article: http://en.wikipedia.org/wiki/ELO_rating_system
Some sites use an improvement over the ELO system, adding a reliability indicator: RD--ratings deviation. This system, called Glicko, is described at http://math.bu.edu/people/mg/glicko/glicko.doc/glicko.html