Player Page

Greyling, J (Johnathan)
Dob: 2006/02/16 (U20)
Gender: Male
Chess SA id: 106076818
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2023/07/29 (295 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1154.0
Curent Weighted rating1164.1
Curent Weighted performance804.9
Current official/published rating (highest between Raw, WR and WP)1164.1
Current floor (min rating allowed)690.7
Current highest rating achieved1190.7
Current K-factor40
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±177.0
Current Raw change used (final)0.0
Projected new Raw rating1154.0
Projected new Weighed rating1162.7
Projected new Weighted performance804.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1162.7
Projected effective change (new Official - current Official)-1.4
Projected new highest rating1190.7
Projected new floor690.7
Projected new K-facor40
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1208.2
Curent Weighted rating1207.5
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1208.2
Current floor (min rating allowed)708.2
Current highest rating achieved1208.2
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±163.9
Current Raw change used (final)0.0
Projected new Raw rating1208.2
Projected new Weighed rating1207.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1208.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1208.2
Projected new floor708.2
Projected new K-facor36
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1084.0
Curent Weighted rating1099.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1099.2
Current floor (min rating allowed)668.0
Current highest rating achieved1168.0
Current K-factor40
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±195.6
Current Raw change used (final)0.0
Projected new Raw rating1084.0
Projected new Weighed rating1096.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1096.7
Projected effective change (new Official - current Official)-2.6
Projected new highest rating1168.0
Projected new floor668.0
Projected new K-facor40
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)668.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1200.0
Projected new floor668.0
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 CT Metro District East Top Schools Chess 2023 (U17+U19 Mixed) 2023/07/29 2023/07/29 Cape Town (WCT) Rapid 30 0.60 5 5 1.0 1190.7 1127.6 Analysis
4 District East Schools Chess Individual Trials 2023 (U17 Boys) 2023/02/03 2023/02/04 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1177.4 1202.4 Analysis
3 Kenridge Rapid 2022 (B) 2022/11/05 2022/11/05 Cape Town (WCT) Rapid 25 0.54 6 6 2.0 1188.4 1168.0 Analysis
2 2020 East District Individuals (U15) 2020/01/31 2020/02/01 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1180.8 1200.0 Analysis
1 Welgemoed Chess Challenge 2018 (U14) 2018/02/24 2018/02/24 Cape Town (WCT) Rapid 30 0.60 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Standard All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 28 11 0 17 11.0 39.3 -91.1 1211.7 1120.6
White 14 2 0 12 2.0 14.3 -303.6 1205.9 902.3
Black 14 9 0 5 9.0 64.3 121.4 1217.5 1339.0
Standard All 12 6 0 6 6.0 50.0 0.0 1225.4 1225.4
White 6 2 0 4 2.0 33.3 -141.7 1218.4 1076.7
Black 6 4 0 2 4.0 66.7 141.7 1232.3 1374.0
Rapid All 16 5 0 11 5.0 31.3 -159.4 1201.5 1042.1
White 8 0 0 8 0.0 0.0 -425.0 1196.5 771.5
Black 8 5 0 3 5.0 62.5 106.3 1206.4 1312.7
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1060097568 Mizen, D (Daniel) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 1980147708 Crofton-Ball, B (Bradford) 1 1.0 1 0 0 100.0 1188.4 425.0 1613.4 View list
3 1080146750 Ntshangase, O (Oyithando) 1 1.0 1 0 0 100.0 1190.7 425.0 1615.7 View list
4 1060096906 Scheepers, Z (Zack) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 2050130479 Rhoda, C (Claudia) 1 1.0 1 0 0 100.0 1180.8 425.0 1605.8 View list
6 1060130487 Siwendu, A (Azole) 1 1.0 1 0 0 100.0 1180.8 425.0 1605.8 View list
7 1050130484 Sibhidla, L (Leago) 1 1.0 1 0 0 100.0 1180.8 425.0 1605.8 View list
8 1060150229 Bonolo, M (Morebudi) 1 1.0 1 0 0 100.0 1177.4 425.0 1602.4 View list
9 1060150246 Van Der Bank, V (Vaughan) 1 1.0 1 0 0 100.0 1177.4 425.0 1602.4 View list
10 2080117986 Vermeulen, I (Inge) 1 1.0 1 0 0 100.0 1188.4 425.0 1613.4 View list
11 1070146752 Zikithi, L (Lwandle) 1 1.0 1 0 0 100.0 1177.4 425.0 1602.4 View list
12 1060097575 Stander, B (Benjamin) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
13 105051694 Shepstone, M (Michael) 1 0.0 0 0 1 0.0 1180.8 -425.0 755.8 View list
14 107076747 Osborne, R (Ryan Eugene) 1 0.0 0 0 1 0.0 1188.4 -425.0 763.4 View list
15 1050130475 Ngcwangu, U (Uman) 1 0.0 0 0 1 0.0 1190.7 -425.0 765.7 View list
16 106092064 Msebi, S (Simamkele) 1 0.0 0 0 1 0.0 1180.8 -425.0 755.8 View list
17 107087105 Brink, W (Wihan) 1 0.0 0 0 1 0.0 1177.4 -425.0 752.4 View list
18 1060150239 Marais, E (Ewan) 1 0.0 0 0 1 0.0 1177.4 -425.0 752.4 View list
19 106064704 Jaftha, J (Jeyhlin) 1 0.0 0 0 1 0.0 1177.4 -425.0 752.4 View list
20 2060096064 Jacobs, C (Caitlin) 1 0.0 0 0 1 0.0 1180.8 -425.0 755.8 View list