Individual Calculations February 2023
 Rathnayake, R M Dulinma Hemalni  Total change: 17.15  Rating chartPersonal card
 Asia Schools CC 2022- U 13 G Kaluthara SRI 2022-12-05
RcRownchangeKK*chgGame
 1172 1372 4.50 7 -0.74 35 -25.90 
  Wijesinghe, Amesha Shenali 1090 SRI0.501-0.3435-11.90 
  Namarathna, H K T I 1166 SRI1.0010.24358.40 
  Ranganath, Tharuli Vihasna 1263 SRI0.001-0.6535-22.75 
  Dakshitha, Anand 1089 IND0.001-0.8435-29.40 
  Dange, Gehansa Ranumi 1278 SRI1.0010.373512.95 
  Liyanage, D Sathini Disathna 1084 SRI1.0010.16355.60 
  Gunasekara, K P K Hesara 1237 SRI1.0010.323511.20 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 
 Kandy Open International Rating Chess Championships 2022 Kandy SRI 2022-12-27
RcRownchangeKK*chgGame
 1370 1372 5.50 7 2.03 35 71.05 
  Wickramasuriya, Diheli Sethnara 1094 SRI1.0010.17355.95 
  Tennakoon, Lisara Samadhith 1717 SRI0.001-0.1135-3.85 
  Nuwarapaksha, N P M Lakvindu 1077 SRI1.0010.15355.25 
  Nissanka, Mindulee 1085 SRI1.0010.16355.60 
  Herath, H M H C B 1547 SRI0.5010.23358.05 
  Jayalath, Thusitha Kumara 1520 SRI1.0010.703524.50 
  Attanayake, Chanindi Mewna 1548 SRI1.0010.733525.55 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 
 Kaluthara International Chess Festival 2023 Kaluthara SRI 2023-01-20
RcRownchangeKK*chgGame
 1259 1372 3.00 6 -0.80 35 -28.00 
  Newansa, M Esandi 1527 SRI0.001-0.2935-10.15 
  Wadduwage, Thamindu Upeksha 1135 SRI1.0010.20357.00 
  Alahakoon, T N 1674 SRI0.001-0.1535-5.25 
  Gunathilaka, Kavinu Sanul 1041 SRI0.501-0.3835-13.30 
  Kannangara, Ranul Insitha 1080 SRI1.0010.15355.25 
  Perera, Thisara Randinu 1098 SRI0.501-0.3335-11.55 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 

 

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