Player Page

Ackerman, J (Johandre)
Dob: 2010/02/17 (U16)
Gender: Male
Chess SA id: 110084943
FIDE id:
Region: Dr Kenneth Kaunda (NWP)
Citizen: RSA
Title(s):
Last active: 2024/04/19 (45 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 rating1127.6
Curent Weighted rating1113.3
Curent Weighted performance1027.7
Current official/published rating (highest between Raw, WR and WP)1127.6
Current floor (min rating allowed)665.1
Current highest rating achieved1165.1
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)±183.8
Current Raw change used (final)0.0
Projected new Raw rating1127.6
Projected new Weighed rating1117.3
Projected new Weighted performance1027.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1127.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1165.1
Projected new floor665.1
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 rating1139.2
Curent Weighted rating1115.7
Curent Weighted performance1054.8
Current official/published rating (highest between Raw, WR and WP)1139.2
Current floor (min rating allowed)664.8
Current highest rating achieved1164.8
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)±180.8
Current Raw change used (final)0.0
Projected new Raw rating1139.2
Projected new Weighed rating1120.7
Projected new Weighted performance1054.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1139.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1164.8
Projected new floor664.8
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 rating745.8
Curent Weighted rating679.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)745.8
Current floor (min rating allowed)245.8
Current highest rating achieved745.8
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)±316.7
Current Raw change used (final)0.0
Projected new Raw rating745.8
Projected new Weighed rating685.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)745.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating745.8
Projected new floor245.8
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 rating667.0
Curent Weighted rating667.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)667.0
Current floor (min rating allowed)245.8
Current highest rating achieved667.0
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)±354.3
Current Raw change used (final)0.0
Projected new Raw rating667.0
Projected new Weighed rating667.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)667.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating667.0
Projected new floor245.8
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 NWU Super 16 2024 2024/04/19 2024/04/19 Gert Sibande (MGS) Rapid 30 0.60 6 6 2.0 1141.8 667.0 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U14B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 1.0 1165.1 1164.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
14 NWU Super 16 2024 2024/04/19 2024/04/19 Gert Sibande (MGS) Rapid 30 0.60 6 6 2.0 1141.8 667.0 Analysis
13 2024 Gauteng Inter-Region Chess Championship (U14B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 1.0 1165.1 1164.8 Analysis
12 2023 Thomas Lechelele North West Open (C) 2023/09/15 2023/09/16 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.5 1100.6 1115.1 Analysis
11 DR KKD Trials 2023 (U14) 2023/09/02 2023/09/02 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1100.6 1115.1 Analysis
10 Dr KKD Curro 2023 (U14) 2023/05/13 2023/05/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 3.0 1051.1 1057.9 Analysis
9 DR Kenneth Kaunda Curro 2023 (C) 2023/04/22 2023/04/22 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 3.0 988.4 979.1 Analysis
8 Schoonspruit Ope 2022 (C) 2022/05/21 2022/05/21 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 4 1.0 991.7 979.9 Analysis
7 Doringkruin 2019 (U10) 2019/06/08 2019/06/08 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 927.8 912.1 Analysis
6 Strathvaal 2019 (U10) 2019/04/13 2019/03/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 3.0 814.6 798.8 Analysis
5 South African Junior Team Championships 2018 (U10A) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 1.0 703.5 721.4 Analysis
4 Boys and Girls 2018 (U10 Boys) 2018/08/25 2018/08/25 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 4 1.0 681.9 699.4 Analysis
3 Driefontein Proewe 2018 (O10 Seuns) 2018/07/28 2018/07/28 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 649.7 669.4 Analysis
2 President 16 Junie 2018 (U10) 2018/06/16 2018/06/16 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 3.0 563.0 563.0 Analysis
1 South African Junior Team Championships 2017 (U8A) 2018/01/04 2018/01/08 4 Knights (4K) Standard 120 1.00 7 7 0.5 667.0 667.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 3 0 7 3.0 30.0 -170.0 1226.2 1056.2
White 6 2 0 4 2.0 33.3 -141.7 1217.2 1075.6
Black 4 1 0 3 1.0 25.0 -212.5 1239.7 1027.2
Standard All 4 1 0 3 1.0 25.0 -212.5 1265.3 1052.8
White 3 1 0 2 1.0 33.3 -141.7 1234.3 1092.6
Black 1 0 0 1 0.0 0.0 -425.0 1358.5 933.5
Rapid All 6 2 0 4 2.0 33.3 -141.7 1200.1 1058.5
White 3 1 0 2 1.0 33.3 -141.7 1200.2 1058.5
Black 3 1 0 2 1.0 33.3 -141.7 1200.1 1058.4
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 72 26 2 44 27.0 37.5 -106.3 1110.7 1004.4
White 38 14 1 23 14.5 38.2 -100.7 1141.0 1040.3
Black 34 12 1 21 12.5 36.8 -112.5 1076.8 964.3
Standard All 66 24 2 40 25.0 37.9 -103.0 1102.5 999.5
White 35 13 1 21 13.5 38.6 -97.1 1135.9 1038.8
Black 31 11 1 19 11.5 37.1 -109.7 1064.8 955.2
Rapid All 6 2 0 4 2.0 33.3 -141.7 1200.1 1058.5
White 3 1 0 2 1.0 33.3 -141.7 1200.2 1058.5
Black 3 1 0 2 1.0 33.3 -141.7 1200.1 1058.4
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 1100109529 Majoang, O (Ofentse) 2 2.0 2 0 0 100.0 871.2 425.0 1296.2 View list
2 1110098297 Handford, C (Chris) 2 1.0 1 0 1 50.0 871.2 0.0 871.2 View list
3 1100110914 Fouche, N (Nathan) 2 0.0 0 0 2 0.0 959.8 -425.0 534.8 View list
4 110093359 Nel, J (Johanco) 2 0.0 0 0 2 0.0 665.8 -425.0 240.8 View list
5 109076282 Walters, DA (Declan) 2 0.0 0 0 2 0.0 622.5 -425.0 197.5 View list
6 1110152502 Grieve, R (Rayden) 1 1.0 1 0 0 100.0 1165.1 425.0 1590.1 View list
7 1110131186 Greyling, J (Jeandre) 1 1.0 1 0 0 100.0 1100.6 425.0 1525.6 View list
8 1110104165 Janse Van Rensburg, CM (Chailo) 1 1.0 1 0 0 100.0 991.7 425.0 1416.7 View list
9 109064023 Fouche, H (Heinrich) 1 1.0 1 0 0 100.0 649.7 425.0 1074.7 View list
10 2100103485 Fernandes, A (Alischke) 1 1.0 1 0 0 100.0 814.6 425.0 1239.6 View list
11 1090103487 Kirsten, K (Keagan) 1 1.0 1 0 0 100.0 563.0 425.0 988.0 View list
12 1100156860 Koen, J (Jayden) 1 1.0 1 0 0 100.0 1051.1 425.0 1476.1 View list
13 109093330 Krugel, L (Lian) 1 1.0 1 0 0 100.0 649.7 425.0 1074.7 View list
14 1110149669 Mabiza, N (Nomvuselelo) 1 1.0 1 0 0 100.0 1051.1 425.0 1476.1 View list
15 110092160 Magudulela, N (Ndumiso) 1 1.0 1 0 0 100.0 703.5 425.0 1128.5 View list
16 1070116267 Maunatlala, ME (Eugene) 1 1.0 1 0 0 100.0 1141.8 425.0 1566.8 View list
17 1080302239 Mhlongo, G (Godfrey) 1 1.0 1 0 0 100.0 1141.8 425.0 1566.8 View list
18 2100149672 Mochoanchoeng, T (Tshego) 1 1.0 1 0 0 100.0 1100.6 425.0 1525.6 View list
19 209084951 Mompe, SRI (Sonwabile) 1 1.0 1 0 0 100.0 563.0 425.0 988.0 View list
20 1080103486 Ngene, C (Chiediebube) 1 1.0 1 0 0 100.0 563.0 425.0 988.0 View list