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Chess SA Region AOC

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Zachariah Robinson

1150147324
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1364.7
K-factor 36
Floor 894.7
Highest 1394.7 (2025-04-01)
Min/Max +/- allowed 126
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1196.7
Final +/- 0
New Rating
()
Rating 1364.7
K-factor 36
Floor 894.7
Highest 1394.7 (2025-04-01)
Min/Max +/- allowed 125.6
Standard rating
Rating 1394
K-factor 36
Floor 894
Highest 1394 (2025-04-01)
Min/Max +/- allowed 125.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1271.5
Final +/- 0
New Rating
()
Rating 1394
K-factor 36
Floor 894
Highest 1394 (2025-04-01)
Min/Max +/- allowed 125.8
Rapid rating
Rating 1288
K-factor 36
Floor 822.8
Highest 1322.8 (2024-02-01)
Min/Max +/- allowed 139.2
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1039.6
Final +/- 0
New Rating
()
Rating 1288
K-factor 36
Floor 822.8
Highest 1322.8 (2024-02-01)
Min/Max +/- allowed 139.2
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Ekurhuleni North School District Finals 2025 (U11 Boys) Standard 2025-06-14 2025-06-14 Ekurhuleni (GE) 5 1364.7 0 0 0 0 Details
2 Chess Molecules Open Tournament 2025 (D) Rapid 2025-04-19 2025-04-19 Johannesburg Metro (GJM) 5 1394.7 5 2 1166 0 Details
3 Edenvale Germiston Cluster 2025 (U11 Boys) Standard 2025-03-08 2025-03-08 Ekurhuleni (GE) 5 1351.1 5 4 1502.8 0 Details
4 Gauteng Inter-Region at UJ 2024 (U10 Open) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1305.1 5 3 1407 0 Details
5 Gauteng Top Schools 2024 (U9 Open) Standard 2024-10-04 2024-10-04 Ekurhuleni (GE) 5 1248.8 4 3 1525.5 0 Details
6 Ekurhuleni Trails 3 2024 (U8+U10) Standard 2024-08-24 2024-08-24 Ekurhuleni (GE) 5 1222.2 5 3 1381.7 0 Details
7 Ekurhuleni Trails 2 2024 (U8+U10) Standard 2024-07-27 2024-07-27 Ekurhuleni (GE) 5 1202.2 5 3 1321.5 0 Details
8 JCC King David Linksfield Rapid 2024 (C) Rapid 2024-04-21 2024-04-21 Johannesburg Metro (GJM) 5 1254.9 5 2 1111.5 0 Details
9 Ekurhuleni Open 2024 (D) Standard 2024-04-06 2024-04-06 Ekurhuleni (GE) 5 1254.9 5 2 996.1 0 Details
10 2024 Gauteng Inter-Region Chess Championship (U10B) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1265.1 4 2 1202.4 0 Details
11 Chess is My Lifestyle 2023 (Grade 0-2) Rapid 2023-12-09 2023-12-09 Johannesburg Metro (GJM) 5 1230.5 5 4 1495.7 0 Details
12 Primrose Rapid 2023 (Grade 0-2) Rapid 2023-06-10 2023-06-10 Ekurhuleni (GE) 6 1129.3 6 4.5 1555.2 0 Details
13 Chess Molecules 16 June Tournament 2023 (Grade 0-2) Rapid 2023-06-16 2023-06-16 Ekurhuleni (GE) 5 1129.3 4 3 1411.2 0 Details
14 Ekurhuleni Chess Trial 3 2023 (U10) Standard 2023-06-17 2023-06-17 Ekurhuleni (GE) 5 1129.3 5 2 1135 0 Details
15 Ithembelihle Open 2023 (B) Rapid 2023-05-13 2023-05-13 Ekurhuleni (GE) 5 1128.5 5 2.5 1128 0 Details
16 Ekurhuleni Trials 2 2023 (U10) Standard 2023-04-22 2023-04-22 Ekurhuleni (GE) 5 1195.2 4 0 768 0 Details
17 Ekhuruleni Chess Trials 1 2023 (U8+U10) Standard 2023-03-25 2023-03-25 Ekurhuleni (GE) 5 1178.4 5 3 1314.1 0 Details
18 Ekurhuleni Springs Open 4 March 2023 (E) Standard 2023-03-04 2023-03-04 Ekurhuleni (GE) 5 1178.4 5 2 1116.1 0 Details
19 Chess Power House Rapid 2022 (U8) Rapid 2022-10-22 2022-10-22 Johannesburg Metro (GJM) 5 1200 4 1 1009.2 0 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics (History)
Games 86
Wins 44
Draws 4
Losses 38
White 41
Black 45
White wins 20
Black wins 24
Score 46
Percent 53.5
Dp 29.7
AOR 1230.5
Performance 1260.2
Rankings (Main)
National
Overall 4050
Gender 3398
Age group 329
Gender/Age 258
Provincial
Overall 1383
Gender 1154
Age group 115
Gender/Age 95
Regional
Overall 416
Gender 364
Age group 43
Gender/Age 37
Rankings (Standard)
National
Overall 3095
Gender 2610
Age group 244
Gender/Age 193
Provincial
Overall 1104
Gender 930
Age group 91
Gender/Age 75
Regional
Overall 331
Gender 288
Age group 37
Gender/Age 32
Rankings (Rapid)
National
Overall 2166
Gender 1771
Age group 267
Gender/Age 210
Provincial
Overall 391
Gender 323
Age group 42
Gender/Age 39
Regional
Overall 160
Gender 143
Age group 16
Gender/Age 15
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance (12 months)
Games 10
Score 6
Percent 60
Aor 1249.4
Dp 85
Prat 1334.4
Performance (History)
Games 86
Score 46
Percent 53.5
Aor 1230.5
Dp 29.7
Prat 1260.2
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Mafane, A (Atlegang) 4 1 3 Ekurhuleni Springs Open 4 March 2023 (E) Ekurhuleni Trails 2 2024 (U8+U10) Details
Overall 2 Pieterse, F (Fourie) 2 2 0 Ekhuruleni Chess Trials 1 2023 (U8+U10) Edenvale Germiston Cluster 2025 (U11 Boys) Details
Overall 3 Van Wyk, P (Paul) 2 0 2 Ekhuruleni Chess Trials 1 2023 (U8+U10) Ekurhuleni Trials 2 2023 (U10) Details
Overall 4 Kruger, T (Thinus Pieter) 2 1 1 Primrose Rapid 2023 (Grade 0-2) Primrose Rapid 2023 (Grade 0-2) Details
Overall 5 Wong, K (Kayla) 2 2 0 Chess Molecules 16 June Tournament 2023 (Grade 0-2) Chess is My Lifestyle 2023 (Grade 0-2) Details
Standard 1 Mafane, A (Atlegang) 2 0 2 Ekurhuleni Springs Open 4 March 2023 (E) Ekurhuleni Trails 2 2024 (U8+U10) Details
Standard 2 Pieterse, F (Fourie) 2 2 0 Ekhuruleni Chess Trials 1 2023 (U8+U10) Edenvale Germiston Cluster 2025 (U11 Boys) Details
Standard 3 Van Wyk, P (Paul) 2 0 2 Ekhuruleni Chess Trials 1 2023 (U8+U10) Ekurhuleni Trials 2 2023 (U10) Details
Standard 4 Mosala, A (Atlehang) 2 2 0 Ekurhuleni Trials 2 2023 (U10) Ekurhuleni Trails 3 2024 (U8+U10) Details
Standard 5 Moutafis, A (Andoni) 2 1 1 Ekurhuleni Chess Trial 3 2023 (U10) Ekurhuleni Trails 3 2024 (U8+U10) Details
Rapid 1 Kruger, T (Thinus Pieter) 2 1 1 Primrose Rapid 2023 (Grade 0-2) Primrose Rapid 2023 (Grade 0-2) Details
Rapid 2 Wong, K (Kayla) 2 2 0 Chess Molecules 16 June Tournament 2023 (Grade 0-2) Chess is My Lifestyle 2023 (Grade 0-2) Details
Rapid 3 Jaffe, E (Ellla) 2 1 1 Primrose Rapid 2023 (Grade 0-2) Primrose Rapid 2023 (Grade 0-2) Details
Rapid 4 Mafane, A (Atlegang) 2 1 1 Primrose Rapid 2023 (Grade 0-2) Primrose Rapid 2023 (Grade 0-2) Details