Let's Talk Squash - SUSPENDED

Stryk9 · Newbie Joined: 01 Apr 2008 Posts: 7

I keep seeing people say that they are a "5.00" player or used to be a "4.5" etc etc, can someone please explain how this works?

In canada we just go from the bottom up as --D, C, B, A , Open , those are our tournament divisions/ I'm like a lower A player, how would this transfer to your system?

I may be off the mark here, but i'm still curious.

Adrian19 · Prolific Contributor Joined: 13 Mar 2008 Posts: 230

I think 5.5 is the highest... so that would be Open.
Then downward like 5.0 is A...

Really depends on your region though... would bump you up or down a grade maybe...
_________________
Foster's... it's Australian for beer!

stevecubs · Posted: Thu Apr 17, 2008 8:17 am Post subject:

Looks like 6.5 is the highest (John White, Tony James, Julian Illingworth (7 players in all) down to 2.0 as the lowest (12 players listed), and they go in half-point intervals, so that's ten grades.

https://www.bcisoft.com/railstation/reportplayerrankings.aspx?sraid=10

About the US Squash Rating System

The US Squash ratings are based on a number scale ranging roughly from 2.0 (least likely to win any given match), through 6.5 (the most likely to win any given match).

The rating simply reflects a person's ability to win a given match. It takes into account ALL factors, such as racquet skill, speed, strength, endurance, experience and mental toughness.

To compete in a Skill Level division, a player must fall in a certain rating range prior to the tournament start date. Players may "play up", but may not play in a rating division below the specified range for that division.

An algorithm is used to calculate a player's initial rating, and his or her rating after playing each match. The algorithm is a variation of the ELO algorithm used by the National Chess Federation. Essentially, it is based on the probabilities of winning or losing the match.

If a player plays a much higher rated player, then his/her probability of winning that match is small. Thus, if he/she wins that match, then his/her rating is adjusted upward by a lot. On the other hand, if they lose that match, their rating is lowered only very slightly, if at all. Conversely, the higher rated player would have their rating lowered by a lot if they lost to the much lower rated player, but only raised by a little, if at all, if they win that match.

Players of relatively equal skill have their ratings adjusted by a moderate amount when they play each other.

The math behind the algorithm is as follows:

WRO = Winner's old rating
LRO = Loser's old rating
K = constant = .1
D = denominator = .5
PW = Probability that the winner would win =
(1/(POWER(10,(-(WRO-LRO)/D))+1))
PL = Probability that the loser would win =
(1/(POWER(10,(-(LRO-WRO)/D))+1))
WRN = Winner's new rating = (WRO+K*(1-PW))
LRN = Loser's new rating = (LRO+K*(0-PL))

Calsquasher · Posted: Thu Apr 17, 2008 1:37 pm Post subject:

Wow, now that's what I call an in-depth explanation. Thanks for that information. I live in the States and didn't have a clue how it was calculated. Guys tell me I'm around a 5.5 and that's the only way I know other than my results against the top guys since I don't play the ladder. Pushed a 6.0 guy to 10-8 in the 5th one time so I guess my rating is about right.
_________________
"Drive for show, drop for dough."

squashclub · Posted: Thu Apr 17, 2008 2:13 pm Post subject:

It's really simple:

2.5 - D
3.5 - C
4.5 - B
5.5 - A

Above 6.0 and you are entering the lowest of the professional rankings. According to my math, Jahanghir Khan had an 8+ rating because of this 5+ year winning streak. The top guys today are high 7.5+.
_________________
My Squash Profile
" Squash racquet is like toothbrush, once you lend it to someone, you don't want it back" Hashim Khan