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Zeke Zwartz

1160150372
Cape Town (WCT)
Personal
Main rating
Rating 1617.5
K-factor 28
Floor 1123.5
Highest 1629.1 (2026-01-01)
Min/Max +/- allowed 90
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1604.7
Final +/- 0
New Rating
()
Rating 1617.5
K-factor 28
Floor 1123.5
Highest 1629.1 (2026-01-01)
Min/Max +/- allowed 90
Standard rating
Rating 1610.8
K-factor 28
Floor 1118.5
Highest 1618.5 (2026-04-01)
Min/Max +/- allowed 91.3
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1613.2
Final +/- 0
New Rating
()
Rating 1610.8
K-factor 28
Floor 1118.5
Highest 1618.5 (2026-04-01)
Min/Max +/- allowed 91.3
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 1411.9
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 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
2 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
3 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
4 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
5 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
6 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
7 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
8 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
9 COGH 2026 (U12) Rapid 2026-01-31 2026-02-01 Cape Town (WCT) 6 1612 6 4 1546.3 -4.9 Details
10 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
11 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
12 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
13 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
14 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
15 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
16 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
17 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
18 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
19 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
20 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
21 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
22 Steinitz Festival 2025 (U10) Rapid 2025-03-15 2025-03-15 Cape Town (WCT) 7 1407 7 4 1319 -7.1 Details
23 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
24 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
25 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
26 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
27 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
28 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
29 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
30 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
31 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
32 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
33 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
34 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
35 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
36 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
37 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
38 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
39 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
40 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
41 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
42 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
43 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
44 GPCA Rapid 2023 (U10) Rapid 2023-06-24 2023-06-24 Cape Town (WCT) 7 1286.1 7 3 1128.4 -14.4 Details
45 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
46 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
47 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
48 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 59
Wins 34
Draws 10
Losses 15
White 30
Black 29
White wins 15
Black wins 19
Score 39
Percent 66.1
Dp 136.9
AOR 1435.3
Performance 1572.2
Game statistics (History)
Games 263
Wins 159
Draws 30
Losses 74
White 134
Black 129
White wins 81
Black wins 78
Score 174
Percent 66.2
Dp 137.4
AOR 1318
Performance 1455.4
Rankings (Main)
National
Overall 946
Gender 874
Age group 45
Gender/Age 38
Provincial
Overall 286
Gender 259
Age group 15
Gender/Age 13
Regional
Overall 198
Gender 184
Age group 9
Gender/Age 9
Rankings (Standard)
National
Overall 901
Gender 831
Age group 49
Gender/Age 42
Provincial
Overall 261
Gender 237
Age group 15
Gender/Age 13
Regional
Overall 186
Gender 173
Age group 10
Gender/Age 10
Rankings (Rapid)
National
Overall 657
Gender 594
Age group 66
Gender/Age 52
Provincial
Overall 309
Gender 270
Age group 35
Gender/Age 23
Regional
Overall 155
Gender 145
Age group 17
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 59
Score 39
Percent 66.1
Aor 1435.3
Dp 136.9
Prat 1572.2
Performance (12 months)
Games 89
Score 64
Percent 71.9
Aor 1413
Dp 186.2
Prat 1599.2
Performance (History)
Games 263
Score 174
Percent 66.2
Aor 1318
Dp 137.4
Prat 1455.4
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 Klopper, E (Elbe) 4 4 0 Cape Town Metro Schools Chess Closed Individuals 2023 (U7 Mixed) Strategize to Win 2024 (E) Details
Overall 3 Van Wyk, A (Alonzo) 4 3 1 Laerskool Welgemoed Rapid 2023 (U8) Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) Details
Overall 4 Marais, A (Alexander) 4 3 1 Western Cape PS Individuals Championship 2024 (U9 Boys) COGH 2026 (U12) Details
Overall 5 Ramonyaluoe, M (Madalitso) 4 2 2 CBC Rapid Chess Tournament 2024 (U8) Cape Winelands Open 2025 (U10) 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 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 3 Venter, M (Michael) 3 2 1 CT Metro Schools Individual Closed 2025 (U9 Open) 2026 WCSC PS Individual Championship (U11 Boys) Details
Standard 4 Marais, A (Alexander) 3 2 1 Western Cape PS Individuals Championship 2024 (U9 Boys) Helderberg Chess Club Open 2026 (U11 Mixed) Details
Standard 5 Ramonyai, M (Mbhekeni) 2 1 1 2025 Mzansi Inter Provincial Team Championships (U10 Combined) South African Junior Closed Chess Championship 2026 (U10 Open) Details
Rapid 1 Akemdien, A (Alex) 3 2 1 CBC Rapid Chess Tournament 2024 (U8) COGH 2026 (U12) Details
Rapid 2 Rogova, E (Emilia) 3 0 3 Laerskool Welgemoed Rapid 2023 (U8) Chas Everitt and MHI Attorneys Rapid 2023 (U8) Details
Rapid 3 Chang, C (Caelem) 3 2 1 Laerskool Welgemoed Rapid 2025 (U10) Laerskool Welgemoed Rapid 2026 (U12) Details
Rapid 4 Esterhuizen, C (Christiaan) 3 1 2 Laerskool Welgemoed Rapid 2023 (U8) North District School Trials 2023 (U7 Boys) Details
Rapid 5 Van Wyk, A (Alonzo) 3 2 1 Laerskool Welgemoed Rapid 2023 (U8) North District School Trials 2023 (U7 Boys) Details