How We Calculate Club Ratings

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How We Calculate Club Ratings

Monday, 12 October 2020 13:46

Club ratings are ratings that are tracked within STTC. You gain or lose ratings points based on results of the matches you play against other club members each night. The idea is that club ratings give a general idea of how well players are doing against each other. Players who win consistently and don't get upset often will tend to move up in the rankings. The ranges and points gained/lost are a modified scale based on the USATT ratings table.

For example, if a player rated 1300 beats a player rated 1120 (a ratings difference of 180), then the player who won gains 3 points and the player who lost loses 3 points; this is an example of an expected result, where the higher rated player wins. The winner of an upset match, in which the lower rated player wins, can gain a higher amount of points. As with any match, the loser loses the same amount of points that the winner gained. For example, if a player rated 1000 beats a player rated 1125 (a ratings difference of 125), then the (lower rated) player who won gains 22 points and the player who lost loses 22 points.

It's important to write down all your match results on the match sheet because after each night of play we: collect all the match results, calculate the new ratings as soon as possible, then update the main STTC Club Ratings article, which appears on the right side of the pages on this site. Previous ratings are then archived under the Club Ratings category.

STTC	Points Exchanged
Ratings Difference	Expected Result	Upset Result
0 - 10	10	10
11 - 20	9	11
21 - 40	8	12
41 - 60	7	14
61 - 85	6	16
86 - 120	5	19
121 - 150	4	22
151 - 200	3	26
201 - 300	2	30
301 - 500	1	35
501+	1	40

For reference the USATT table is below:

USATT	Points Exchanged
Ratings Difference	Expected Result	Upset Result
0 - 12	8	8
13 - 37	7	10
38 - 62	6	13
63 - 87	5	16
88 - 112	4	20
113 - 137	3	25
138 - 162	2	30
163 - 187	2	35
188 - 212	1	40
213 - 237	1	45
238+	0	50

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Last Updated on Friday, 28 May 2010 04:33

Where We Play

The Sangamon Table Tennis Club meets every Tue, Wed, and Thu night from 6pm to 10pm at Douglas Avenue United Methodist Church

501 South Douglas Avenue, Springfield, IL (map, parking on south side of church)

See Club Information for more details. There is also STTC open play on Mondays 7-9pm at Nazarene Church in Sherman, IL (map).

STTC currently has 58 members.
(55) male, (3) female, (12) 19 & under, (18) 50 & over

STTC Club Ratings

Updated (09-07-2010)

1885 Rick Goertz
1538 Jiming Cheng
1388 Stephen Paca
1382 Gabriel Armah
1350 Michael Chen
1337 John Mullenix
1314 Rauf Piskin
1310 Daotai Nie
1298 Peter Mueller
1291 Phillip Sisti
1278 Kenneth Erewele
1208 James Embalabala
1181 Canxin Xu
1172 Raymond Cheng
1169 Jason Baptiste
1157 Cron Mueller
1136 Rodney Herzog
1126 Edwin Rodriguez
1107 Roger Mansholt
1058 Tom Winter
1037 Debu Boral
1022 Sandeep Sheth
1015 Andrew Lawton
1005 Babar Malik
1005 Subodh Jain
1000 Wale Kuforiji
1000 Gabriel Sogunro
994 Arvid Hammers
988 Everett Irby
988 Shola Famuwagun
980 Pravesh Basnet
974 James Corley
972 Robert Clark
969 Jenna Eccleston
959 Jim Bogue
932 Nii Addo
921 Amanda Jones
891 Richard Pearce
883 J Rosse
881 Mike Eymann
854 Will Peters
801 Kalisa Goertz
800 James Heagy
797 Joe Lin
777 Bharat Trivedi

Inactive Members

(1429) David Ejeh

(1135) Mark Carnduff

(1091) Alex Hammers

(1072) Yuanyuan Zhou

(1000) Lee Allen

(1000) Charles Purser

(1000) Michael Purser

(988) Harris Allen

(975) Tom Krehbiel

(947) Scott Krehbiel

(947) Neil Polonus

(940) Matthew Krehbiel

(911) Danny Mitchelson