Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Zeke Zwartz

1160150372
Cape Town (WCT)
Personal
Main rating
Rating 1621.2
K-factor 28
Floor 1138.8
Highest 1638.8 (2026-08-01)
Min/Max +/- allowed 89
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1512.1
Final +/- 0
New Rating
()
Rating 1621.2
K-factor 28
Floor 1138.8
Highest 1638.8 (2026-08-01)
Min/Max +/- allowed 88.7
Standard rating
Rating 1609.6
K-factor 28
Floor 1132.1
Highest 1632.1 (2026-08-01)
Min/Max +/- allowed 89.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1512.1
Final +/- 0
New Rating
()
Rating 1609.6
K-factor 28
Floor 1132.1
Highest 1632.1 (2026-08-01)
Min/Max +/- allowed 89.6
Rapid rating
Rating 1437.2
K-factor 32
Floor 953.9
Highest 1624.4 (2023-02-01)
Min/Max +/- allowed 90.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1375.9
Final +/- 0
New Rating
()
Rating 1437.2
K-factor 32
Floor 953.9
Highest 1624.4 (2023-02-01)
Min/Max +/- allowed 90.6
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 Cape Town Metro North Top Schools – Primary Schools 2026 (U11 Mixed) Standard 2026-08-01 2026-08-02 Cape Town (WCT) 6 1621.2 5 3 1336.1 -17.5 Details
2 South African Open Championship 2026 (U11 Boys) Classical 2026-07-02 2026-07-05 Cape Town (WCT) 7 1617.5 7 5 1703.5 21.2 Details
3 2026 WCSC PS Individual Championship (U11 Boys) Standard 2026-05-16 2026-05-17 Overberg (WOS) 6 1614.1 6 3.5 1547.9 -10.6 Details
4 Table View Chess Club Junior Chess Championship 2026 (U11) Standard 2026-05-09 2026-05-09 Cape Town (WCT) 5 1614.1 5 4 1708.9 12.2 Details
5 Moja Chess Extravaganza 2026 (U10) Standard 2026-04-25 2026-04-26 Cape Town (WCT) 5 1614.1 5 3.5 1627.6 1.8 Details
6 South African Junior Closed Chess Championship 2026 (U10 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1555.8 9 6 1757.1 58.3 Details
7 Steinitz Chess Festival 2026 (U12) Rapid 2026-03-21 2026-03-21 Cape Town (WCT) 5 1580.9 5 3.5 1430.4 -10.9 Details
8 CT Metro Schools Individual Closed 2026 (U11 Boys) Standard 2026-03-07 2026-03-08 Cape Town (WCT) 6 1580.9 6 3.5 1495 -14.2 Details
9 Laerskool Welgemoed Rapid 2026 (U12) Rapid 2026-02-14 2026-02-14 Cape Town (WCT) 6 1612 6 3.5 1358.1 -19.1 Details
10 CT Metro North Schools Chess Individual Trials 2026 (U11 Boys) Standard 2026-02-07 2026-02-08 Cape Town (WCT) 6 1612 6 4.5 1625.2 1.3 Details
11 COGH 2026 (U12) Rapid 2026-01-31 2026-02-01 Cape Town (WCT) 6 1612 6 4 1546.3 -4.9 Details
12 Helderberg Chess Club Open 2026 (U11 Mixed) Standard 2026-01-17 2026-01-17 Cape Town (WCT) 5 1629.1 5 3 1535.2 -8.3 Details
13 2025 Mzansi Individual Championships (U10 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1531.4 6 5 1724.1 27.4 Details
14 2025 Mzansi Inter Provincial Team Championships (U10 Combined) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1531.4 6 5 1735.9 24.1 Details
15 Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U11 Boys) Rapid 2025-12-09 2025-12-09 Cape Winelands (WCW) 5 1531.4 5 3.5 1477.5 -3.7 Details
16 Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U11) Rapid 2025-12-08 2025-12-08 Cape Winelands (WCW) 5 1531.4 4 4 1725.3 9.9 Details
17 Cape Town Metro North Top Schools 2025 (U11) Standard 2025-08-01 2025-08-02 Cape Town (WCT) 5 1517.2 5 4.5 1598.3 8.8 Details
18 Cape Winelands Open 2025 (U10) Standard 2025-07-19 2025-07-19 Cape Winelands (WCW) 5 1461.6 4 3 1632.3 13.4 Details
19 Helderberg Chess Club Open 2025 (U9) Standard 2025-06-07 2025-06-07 Cape Town (WCT) 5 1423.7 5 3.5 1485.9 5.5 Details
20 Cape Town Chess Junior League 2025 (U12) Standard 2025-05-10 2025-05-31 Cape Town (WCT) 6 1423.7 5 4 1510.3 9.3 Details
21 Western Cape Schools Individual Championship 2025 (U9 Boys) Standard 2025-05-17 2025-05-18 Cape Winelands (WCW) 6 1391.2 6 4.5 1563.8 20.3 Details
22 South African Junior Closed Chess Championships 2025 (U10 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1402.1 9 3.5 1374.6 -6.8 Details
23 Cape Town Open Chess Festival 2025 (U10) Standard 2025-03-22 2025-03-23 Cape Town (WCT) 6 1407 6 3 1337 -8.1 Details
24 Steinitz Festival 2025 (U10) Rapid 2025-03-15 2025-03-15 Cape Town (WCT) 7 1407 7 4 1319 -7.1 Details
25 CT Metro Schools Individual Closed 2025 (U9 Open) Standard 2025-03-01 2025-03-02 Cape Town (WCT) 6 1407 6 4 1507.6 12.1 Details
26 Cape of Good Hope Open 2025 (U10) Rapid 2025-02-22 2025-02-22 Cape Town (WCT) 6 1371 6 3 1293.4 -5.9 Details
27 Laerskool Welgemoed Rapid 2025 (U10) Rapid 2025-02-15 2025-02-15 Cape Town (WCT) 6 1371 6 5.5 1590.5 18.9 Details
28 CT Metro North Schools Chess Individual Trials 2025 (U9 Open) Standard 2025-02-08 2025-02-09 Cape Town (WCT) 6 1371 6 4 1430.1 7 Details
29 2025 Kraaifontein Open Chess Championships (Rapid U10) Rapid 2025-01-04 2025-01-04 Cape Town (WCT) 6 1363.5 6 4 1411.3 4.1 Details
30 Laerskool Welgemoed Rapid 2024 (U10) Rapid 2024-10-19 2024-10-19 Cape Town (WCT) 6 1348.1 6 4 1379.8 2.5 Details
31 UCT Open Chess Championship 2024 (U10) Rapid 2024-10-12 2024-10-13 Cape Town (WCT) 6 1348.1 6 4 1427.4 6.1 Details
32 CBC Rapid Chess Tournament 2024 (U8) Rapid 2024-09-14 2024-09-14 Cape Town (WCT) 6 1312 6 5 1547.7 20.2 Details
33 CT District North Top Schools 2024 (U9 Mixed) Rapid 2024-07-27 2024-07-27 Cape Town (WCT) 5 1293.9 4 3 1471.8 10.1 Details
34 Cape Town Chess Federation Closed Chess Championships 2024 (U10) Standard 2024-06-15 2024-06-15 Cape Town (WCT) 5 1308.2 5 2 1234.9 -8 Details
35 Cape Town Junior League Finals 2024 (U13 Open A) Rapid 2024-05-18 2024-05-18 Cape Town (WCT) 5 1302.4 4 1 1012.2 -13.9 Details
36 Western Cape PS Individuals Championship 2024 (U9 Boys) Standard 2024-05-04 2024-05-05 West Coast (WCU) 6 1302.4 6 3.5 1393.9 9.3 Details
37 Cape Town Junior League - Qualifier 2 2024 (U13) Rapid 2024-04-20 2024-04-20 Cape Town (WCT) 6 1302.4 6 4 1403.6 7.8 Details
38 Cape Town Junior League Qualifier 2024 (U13 Open) Rapid 2024-04-06 2024-04-06 Cape Town (WCT) 6 1335.8 1 0 825.6 -7 Details
39 Strategize to Win 2024 (E) Standard 2024-04-13 2024-04-14 Cape Town (WCT) 5 1335.8 5 2 1227.7 -11.7 Details
40 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) Standard 2024-03-02 2024-03-03 Cape Town (WCT) 6 1332.2 6 3.5 1347.9 2 Details
41 North District School Trials 2024 (U9 Boys) Standard 2024-02-03 2024-02-03 Cape Town (WCT) 5 1286.5 5 4 1538.6 25.2 Details
42 Rylib Summer Slam 2023 (Development) Rapid 2023-12-12 2023-12-12 Cape Town (WCT) 6 1293.6 6 3 1235.1 -3.9 Details
43 Chas Everitt and MHI Attorneys Rapid 2023 (U8) Rapid 2023-11-04 2023-11-04 Cape Town (WCT) 6 1266.4 6 5 1463.3 15.2 Details
44 Western Cape Closed Championship 2023 (U8) Rapid 2023-09-23 2023-09-23 Cape Town (WCT) 6 1261.9 6 4 1295.5 2.7 Details
45 CT Metro District North Top Schools Chess 2023 (U9 Mixed) Rapid 2023-07-29 2023-07-29 Cape Town (WCT) 3 1260.2 2 1 1295 1 Details
46 GPCA Rapid 2023 (U10) Rapid 2023-06-24 2023-06-24 Cape Town (WCT) 7 1286.1 7 3 1128.4 -14.4 Details
47 Western Cape PS Individuals 2023 (U7 Boys) Standard 2023-05-05 2023-05-06 Cape Town (WCT) 6 1284.3 6 4 1289.9 0.8 Details
48 Cape Town Metro Schools Chess Closed Individuals 2023 (U7 Mixed) Rapid 2023-03-04 2023-03-04 Cape Town (WCT) 5 1300.5 4 2 1140.7 -8.9 Details
49 North District School Trials 2023 (U7 Boys) Rapid 2023-02-04 2023-02-04 Cape Town (WCT) 6 1200 4 4 1625 24.2 Details
50 Laerskool Welgemoed Rapid 2023 (U8) Rapid 2023-02-11 2023-02-11 Cape Town (WCT) 5 1200 5 5 1605.9 26.4 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 71
Wins 40
Draws 14
Losses 17
White 36
Black 35
White wins 19
Black wins 21
Score 47
Percent 66.2
Dp 137.7
AOR 1430.8
Performance 1568.5
Game statistics (History)
Games 275
Wins 165
Draws 34
Losses 76
White 140
Black 135
White wins 85
Black wins 80
Score 182
Percent 66.2
Dp 137.5
AOR 1322
Performance 1459.5
Rankings (Main)
National
Overall 947
Gender 878
Age group 58
Gender/Age 52
Provincial
Overall 276
Gender 251
Age group 19
Gender/Age 16
Regional
Overall 188
Gender 175
Age group 10
Gender/Age 10
Rankings (Standard)
National
Overall 919
Gender 846
Age group 56
Gender/Age 50
Provincial
Overall 252
Gender 227
Age group 17
Gender/Age 15
Regional
Overall 176
Gender 162
Age group 10
Gender/Age 10
Rankings (Rapid)
National
Overall 710
Gender 634
Age group 78
Gender/Age 64
Provincial
Overall 328
Gender 287
Age group 41
Gender/Age 29
Regional
Overall 155
Gender 146
Age group 20
Gender/Age 17
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 71
Score 47
Percent 66.2
Aor 1430.8
Dp 137.7
Prat 1568.5
Performance (12 months)
Games 92
Score 64.5
Percent 70.1
Aor 1420.5
Dp 170.9
Prat 1591.5
Performance (History)
Games 275
Score 182
Percent 66.2
Aor 1322
Dp 137.5
Prat 1459.5
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Akemdien, A (Alex) 7 5 2 CBC Rapid Chess Tournament 2024 (U8) Table View Chess Club Junior Chess Championship 2026 (U11) Details
Overall 2 Van Der Merwe, S (Schalk Wolf) 5 2 3 North District School Trials 2024 (U9 Boys) South African Open Championship 2026 (U11 Boys) Details
Overall 3 Venter, M (Michael) 4 2 2 CT Metro Schools Individual Closed 2025 (U9 Open) South African Open Championship 2026 (U11 Boys) Details
Overall 4 Baker, A (Andrew) 4 3 1 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) 2026 WCSC PS Individual Championship (U11 Boys) Details
Overall 5 Van Wyk, A (Alonzo) 4 3 1 Laerskool Welgemoed Rapid 2023 (U8) Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) Details
Standard 1 Akemdien, A (Alex) 4 3 1 CT Metro North Schools Chess Individual Trials 2025 (U9 Open) Table View Chess Club Junior Chess Championship 2026 (U11) Details
Standard 2 Venter, M (Michael) 4 2 2 CT Metro Schools Individual Closed 2025 (U9 Open) South African Open Championship 2026 (U11 Boys) Details
Standard 3 Van Der Merwe, S (Schalk Wolf) 3 1 2 North District School Trials 2024 (U9 Boys) South African Open Championship 2026 (U11 Boys) Details
Standard 4 Baker, A (Andrew) 3 2 1 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) 2026 WCSC PS Individual Championship (U11 Boys) Details
Standard 5 Marais, A (Alexander) 3 2 1 Western Cape PS Individuals Championship 2024 (U9 Boys) Helderberg Chess Club Open 2026 (U11 Mixed) Details
Rapid 1 Esterhuizen, C (Christiaan) 3 1 2 Laerskool Welgemoed Rapid 2023 (U8) North District School Trials 2023 (U7 Boys) Details
Rapid 2 Horn, N (Nielen) 3 2 1 CBC Rapid Chess Tournament 2024 (U8) Laerskool Welgemoed Rapid 2025 (U10) Details
Rapid 3 Klopper, E (Elbe) 3 3 0 Cape Town Metro Schools Chess Closed Individuals 2023 (U7 Mixed) Chas Everitt and MHI Attorneys Rapid 2023 (U8) Details
Rapid 4 Rogova, E (Emilia) 3 0 3 Laerskool Welgemoed Rapid 2023 (U8) Chas Everitt and MHI Attorneys Rapid 2023 (U8) Details
Rapid 5 Chang, C (Caelem) 3 2 1 Laerskool Welgemoed Rapid 2025 (U10) Laerskool Welgemoed Rapid 2026 (U12) Details