Official Ratings/Rankings of ÖTTV, NÖTTV, STTV, KTTV, BTTV, TTTV, StTTV, WTTV, VTTV, OÖTTV, TTQ, TTSA, TTTA, TTV, and ELTTL.
Ratings Central: The World’s Most Accurate Rating System
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Welcome!

Welcome to Ratings Central, home of the world’s most accurate rating system!


On June 1, 2019, we will be modifying the temporal-update algorithm and will reprocess all events. Everyone’s rating will change. All historical ratings will change.

Currently, if the rating system has not seen a player for a year, the standard deviation of the player’s law will increase by at most 70 points.

With the new algorithm, if the rating system has not seen a player for a year, the standard deviation of the player’s law will increase by at most 79.4 points and the mean will increase by 7 points. However, the increase in mean will not be credited until the player plays in an event. (The new temporal-update is the sum of a mean-zero normal random walk with a variance of 70² per year and a Poisson jump process with jumps of 200 points, a mean of 7 points per year, and a variance of 200 × 7 per year.)

When we reprocess all events, the ratings of 99.99% of the players will increase or stay the same. The average gain will be 42 points. Only 0.02% of players will gain more than 300 points.

We were motivated to consider changes to the algorithm by a major event director who felt that the ratings for their players were deflating. After a year of experimentation and investigation, we concluded that part of the deflation was due to their choice of priors. However, even after using better priors, there still appeared to be some deflation. A related problem is that sometimes the system can be slow to react when a player improves rapidly. We think the new temporal-update algorithm produces more accurate ratings.


For more information on Ratings Central, including how your club, league, or tournament can join, see Info. And, be sure to take a look at what people are saying about Ratings Central.

If you run tournaments, take a look at Zermelo. Zermelo can help you run your tournament and submit it to Ratings Central or USATT, or can be used without using Ratings Central.

Recent Events
DateNameClubState/ProvinceCountrySport
2019-04-222019 SNDTTA Autumn - 2019-04-22SNDTTAAUSTT
2019-04-202019 Victorian Open Jnr Table Tennis ChampionshipsTTVVICAUSTT
2019-04-20Mastiff TTC LeagueMastiff TTCMAUSATT
2019-04-20Minnesota Saturday OpenMNUSATT
2019-04-202019 Ankeny Iowa Table Tennis TournamentIAUSATT
2019-04-20FCTTC April, 2019 RRFCTTCCOUSATT
2019-04-18Minnesota TC RRPTTMNUSATT
2019-04-18April 19th Kaizen ChallengeTEMPIPsORUSATT
2019-04-18TTACT 2019 Autumn Pennant Div 4 Rnd 8TTACTACTAUSTT
2019-04-18ES&CTTA 2019 Spring A1 Rnd 14ES&CTTAVICAUSTT
2019-04-18B1 Rnd 12 WTTA SummerWTTAVictoriaAUSTT
2019-04-18PPC: Thursday Advanced LeaguePPCORUSATT
2019-04-18AWTTA 2019 Summer Div 2 Rd GFAWTTAVICAUSTT
2019-04-17BTTA Fixtures Tuesday (16/04/2019)BTTAQLDAUSTT
2019-04-17ES&CTTA 2019 Spring B Rnd GFES&CTTAVICAUSTT
2019-04-17Spring Novice LeaguePPCORUSATT
2019-04-17Loops Wednesday Night Division 1 2019 R11HWATTVICAUSTT
2019-04-17Bend TTC - April ’19 LeagueBend TTCORUSATT
2019-04-172019 TTV Premier League Season1 Wed Round 8TTVVICAUSTT
2019-04-17Sunshine & District TTA 2019 Wed S1 - Semi FinalSDTTAVICAUSTT
2019-04-17A1 Rnd 12 WTTA SummerWTTAVictoriaAUSTT
2019-04-17AWTTA 2019 Summer Div 4 Rd GFAWTTAVICAUSTT
2019-04-17Pure Pong Wednesday LeaguePPitPORUSATT
2019-04-17TTACT 2019 Autumn Pennant Div1 Rnd8TTACTAUSTT
2019-04-16Port Mac TuesdaysPMTTCNSWAUSTT

TT = Table Tennis. HTT = Hardbat Table Tennis. STT = Sandpaper Table Tennis.
Events: 31,412. Players: 90,456. Matches: 3,498,852.