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

PLAYER PAGE

Janko Weideman

1120134372
Cape Town (WCT)
Personal
Main rating
Rating 1816.6
K-factor 24
Floor 1339.2
Highest 1842.7 (2025-11-01)
Min/Max +/- allowed 66
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1680.9
Final +/- 0
New Rating
()
Rating 1816.6
K-factor 24
Floor 1339.2
Highest 1842.7 (2025-11-01)
Min/Max +/- allowed 66.4
Standard rating
Rating 1821
K-factor 24
Floor 1346.1
Highest 1846.1 (2026-07-01)
Min/Max +/- allowed 66
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1712.6
Final +/- 0
New Rating
()
Rating 1821
K-factor 24
Floor 1346.1
Highest 1846.1 (2026-07-01)
Min/Max +/- allowed 66
Rapid rating
Rating 1782.9
K-factor 28
Floor 1282.9
Highest 1782.9 (2026-03-01)
Min/Max +/- allowed 72.3
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1702.1
Final +/- 0
New Rating
()
Rating 1782.9
K-factor 28
Floor 1282.9
Highest 1782.9 (2026-03-01)
Min/Max +/- allowed 72.3
Blitz rating
Rating 1483.9
K-factor 32
Floor 983.9
Highest 1483.9 (2026-08-01)
Min/Max +/- allowed 110.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1554
Final +/- 0
New Rating
()
Rating 1483.9
K-factor 32
Floor 983.9
Highest 1483.9 (2026-08-01)
Min/Max +/- allowed 110.7
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 North District High School Top Schools 2026 (U15 Mix) Standard 2026-07-25 2026-07-26 Cape Town (WCT) 6 1816.6 6 6 1600.2 0.6 Details
2 South African Open Championship 2026 (Championship) Classical 2026-06-28 2026-07-05 Cape Town (WCT) 9 1840.2 8 2 1729.8 -25.2 Details
3 South African Open Championship 2026 (Blitz) Blitz 2026-06-27 2026-06-27 Cape Town (WCT) 9 1840.2 9 6 1871.8 1.5 Details
4 CTCF Open Championship 2026 (Championship) Classical 2026-06-13 2026-06-15 Cape Town (WCT) 6 1819.1 6 3 1945.1 21.1 Details
5 2026 WCSC HS Individual Championship (U15 Boys) Standard 2026-05-02 2026-05-03 Eden (WEG) 6 1816 6 4.5 1817.2 0.5 Details
6 Moja Chess Extravaganza 2026 (B) Classical 2026-04-25 2026-04-30 Cape Town (WCT) 9 1816 9 5 1840.4 7.3 Details
7 Moja Chess Extravaganza 2026 (Blitz) Blitz 2026-04-27 2026-04-27 Cape Town (WCT) 9 1816 9 4.5 1694.6 -4.7 Details
8 South African Junior Closed Chess Championship 2026 (U14 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1758.9 9 7 1979.6 57.1 Details
9 Steinitz Chess Festival 2026 (Open) Rapid 2026-03-22 2026-03-22 Cape Town (WCT) 6 1790.1 5 3 1723 -3 Details
10 CT Metro Schools Individual Closed 2026 (U15 Boys) Standard 2026-03-07 2026-03-08 Cape Town (WCT) 6 1790.1 6 3.5 1618.6 -22.1 Details
11 CT Metro North Schools Chess Individual Trials 2026 (U15 Boys) Standard 2026-02-14 2026-02-15 Cape Town 6 1790.1 6 4.5 1714.2 -6.1 Details
12 COGH 2026 (Championship) Standard 2026-01-31 2026-02-01 Cape Town (WCT) 6 1778 6 2.5 1794.7 1 Details
13 Chess Elevation Series 2 2026 (Level 6) Standard 2026-01-23 2026-01-23 Cape Town (WCT) 5 1787.3 4 1 1686.7 -8.4 Details
14 Helderberg Chess Club Open 2026 (A) Standard 2026-01-17 2026-01-17 Cape Town (WCT) 5 1787.3 5 4 1869.8 2.8 Details
15 Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U15) Rapid 2025-12-09 2025-12-09 Cape Winelands (WCW) 5 1823.6 5 5 1888.4 6.9 Details
16 Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U15+U18) Rapid 2025-12-08 2025-12-08 Cape Winelands (WCW) 5 1823.6 5 5 1866.7 7 Details
17 Kraaifontein Open 2025 (Championship) Standard 2025-12-06 2025-12-07 Cape Town (WCT) 5 1823.6 5 1.5 1538.6 -30.6 Details
18 Cape Town Chess Federation Club League 2025 (A) Classical 2025-07-26 2025-09-27 Cape Town (WCT) 11 1839.2 10 3 1534.5 -71.4 Details
19 Paarl Boys' High School Chess Festival 2025 (Primary Schools) Standard 2025-10-17 2025-10-18 Cape Winelands (WCW) 6 1839.2 6 5.5 1934.7 12.6 Details
20 UCT Open Chess Championship 2025 (Championship) Standard 2025-10-10 2025-10-12 Cape Town (WCT) 6 1839.2 6 3.5 2083.5 32.1 Details
21 Cape Town Metro North Top Schools 2025 (U13) Standard 2025-08-01 2025-08-02 Cape Town (WCT) 5 1834.4 5 5 1750.7 4 Details
22 4th Curro Durbanville Rapid Open 2025 (Championship) Rapid 2025-07-19 2025-07-19 Cape Town (WCT) 7 1821 7 3.5 1961.4 11.2 Details
23 Western Cape Schools Individual Championship 2025 (U13 Boys) Standard 2025-05-17 2025-05-18 Cape Winelands (WCW) 6 1818.5 6 5 1833.8 2.2 Details
24 Hermanus Chess Club Open 2025 (Championship) Rapid 2025-04-12 2025-04-12 Overberg (WOS) 7 1778.4 7 3.5 1939.8 13 Details
25 Hermanus Chess Club Open 2025 (Blitz) Blitz 2025-04-11 2025-04-11 Overberg (WOS) 9 1778.4 9 6.5 1934.5 5.8 Details
26 South African Junior Closed Chess Championships 2025 (U14 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1778.4 9 6 1827.4 9.8 Details
27 Cape Town Open Chess Festival 2025 (A) Standard 2025-03-22 2025-03-23 Cape Town (WCT) 6 1737.6 6 3 1784.1 6 Details
28 Western Cape Closed 2025 (A) Standard 2025-03-08 2025-03-09 Cape Town (WCT) 6 1737.6 6 2.5 1824.9 11.3 Details
29 CT Metro Schools Individual Closed 2025 (U13 Open) Standard 2025-03-01 2025-03-02 Cape Town (WCT) 6 1737.6 6 5 1830.2 11.8 Details
30 Cape of Good Hope Open 2025 (Championship) Standard 2025-02-22 2025-02-23 Cape Town (WCT) 6 1710.3 5 1.5 1700.1 -1.8 Details
31 Laerskool Welgemoed Rapid 2025 (U14) Rapid 2025-02-15 2025-02-15 Cape Town (WCT) 6 1710.3 6 6 1786.4 8.3 Details
32 CT Metro North Schools Chess Individual Trials 2025 (U13 Open) Standard 2025-02-08 2025-02-09 Cape Town (WCT) 6 1710.3 6 5.5 1806.8 12.9 Details
33 Cape Town Masters Challenge 2025 (Advanced) Classical 2025-01-06 2025-01-11 Cape Town (WCT) 9 1670.4 9 7 1808 28.6 Details
34 2nd Strategize To Win Round-Robin Tournament ACL 2024 (A) Standard 2024-12-07 2024-12-07 Cape Town (WCT) 5 1673.6 5 2 1644.6 -2.3 Details
35 Paarl Boys' High Chess Festival 2024 (Elite) Standard 2024-10-04 2024-10-05 Cape Winelands (WCW) 6 1622 6 6 1935.1 36.9 Details
36 Laerskool Welgemoed Rapid 2024 (U14) Rapid 2024-10-19 2024-10-19 Cape Town (WCT) 6 1597.2 6 4 1638.2 3.3 Details
37 Western Cape Club Championship 2024 (Tier 2) Standard 2024-10-25 2024-10-27 Cape Town (WCT) 5 1597.2 5 3 1636.8 3.3 Details
38 UCT Open Chess Championship 2024 (Advanced) Standard 2024-10-12 2024-10-13 Cape Town (WCT) 5 1597.2 5 4 1691.1 11.3 Details
39 CT League 2024 (A) Classical 2024-07-20 2024-09-07 Cape Town (WCT) 11 1578.8 7 3.5 1572 1.4 Details
40 CT League 2024 (D-Playoffs) Standard 2024-09-07 2024-09-08 Cape Town (WCT) 5 1578.8 3 1 1492.5 -4.5 Details
41 Western Cape Top Schools Championship 2024 (U13 Mixed) Standard 2024-08-30 2024-09-01 Eden (WEG) 6 1578.8 6 4.5 1715.8 16.3 Details
42 2nd Young Minds Classic 2024 (Intermediate) Standard 2024-08-10 2024-08-11 Cape Town (WCT) 5 1617.2 5 3 1363.1 -27.4 Details
43 CT District North Top Schools 2024 (U13 Mixed) Rapid 2024-07-27 2024-07-27 Cape Town (WCT) 5 1611 5 5 1681.7 5.8 Details
44 Curro Durbanville Chess Rapid Open 2024 (Championship) Rapid 2024-07-13 2024-07-13 Cape Town (WCT) 6 1611 6 3 1596.4 -1.3 Details
45 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1521.1 9 6 1796.5 56.2 Details
46 Steinitz Chess Festival 2024 (Open) Standard 2024-05-10 2024-05-12 Cape Town (WCT) 6 1426 6 3.5 1494.5 8.8 Details
47 South African Junior Closed Chess Championship 2024 (U12 Open) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1426 9 6 1670.9 50.6 Details
48 Cape Town Open Rapid Chess Championship 2024 (Open) Rapid 2024-03-17 2024-03-17 Cape Town (WCT) 6 1428.4 6 3.5 1407.1 -1.5 Details
49 Cape Town Masters Challenge 2024 (Advanced) Classical 2024-01-03 2024-01-07 Cape Town (WCT) 7 1436.7 7 2.5 1400.7 -5.2 Details
50 Kraaifontein Open 2023 (Adanced) Standard 2023-12-09 2023-12-10 Cape Town (WCT) 6 1423.9 6 3 1490.9 8.2 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 94
Wins 49
Draws 15
Losses 30
White 46
Black 48
White wins 24
Black wins 25
Score 56.5
Percent 60.1
Dp 85.9
AOR 1701
Performance 1786.9
Game statistics (History)
Games 562
Wins 316
Draws 73
Losses 173
White 283
Black 279
White wins 157
Black wins 159
Score 352.5
Percent 62.7
Dp 108.1
AOR 1502.5
Performance 1610.6
Rankings (Main)
National
Overall 238
Gender 226
Age group 11
Gender/Age 9
Provincial
Overall 76
Gender 73
Age group 6
Gender/Age 5
Regional
Overall 64
Gender 62
Age group 6
Gender/Age 5
Rankings (Standard)
National
Overall 222
Gender 210
Age group 12
Gender/Age 10
Provincial
Overall 68
Gender 66
Age group 5
Gender/Age 4
Regional
Overall 58
Gender 56
Age group 5
Gender/Age 4
Rankings (Rapid)
National
Overall 54
Gender 54
Age group 3
Gender/Age 3
Provincial
Overall 25
Gender 25
Age group 2
Gender/Age 2
Regional
Overall 21
Gender 21
Age group 2
Gender/Age 2
Rankings (Blitz)
National
Overall 165
Gender 161
Age group 8
Gender/Age 8
Provincial
Overall 63
Gender 60
Age group 3
Gender/Age 3
Regional
Overall 30
Gender 29
Age group 3
Gender/Age 3
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 94
Score 56.5
Percent 60.1
Aor 1701
Dp 85.9
Prat 1786.9
Performance (12 months)
Games 131
Score 80
Percent 61.1
Aor 1691.3
Dp 94.1
Prat 1785.4
Performance (History)
Games 562
Score 352.5
Percent 62.7
Aor 1502.5
Dp 108.1
Prat 1610.6
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Singh, S (Shaurya) 21 14 7 Laerskool Welgemoed 12th Annual Chess Challenge 2022 (U12) South African Open Championship 2026 (Championship) Details
Overall 2 Shapiro, M (Matthew) 8 4 4 2022 Cape Of Good Hope Open (U12) Helderberg Chess Club Open 2026 (A) Details
Overall 3 Maruma, KB (Kamogelo) 6 4 2 Western Cape Schools 2022 (U11 Boys) Western Cape Top Schools Championship 2024 (U13 Mixed) Details
Overall 4 Guo, A (Aleks) 6 3 3 Western Cape Schools 2022 (U11 Boys) CT Metro Schools Individual Closed 2026 (U15 Boys) Details
Overall 5 Salimu, C (Chase) 6 2 4 District North 2022 (U11) 4th Curro Durbanville Rapid Open 2025 (Championship) Details
Standard 1 Singh, S (Shaurya) 18 12 6 South African Open 2022 (U12) South African Open Championship 2026 (Championship) Details
Standard 2 Shapiro, M (Matthew) 7 4 3 2022 Cape Of Good Hope Open (U12) Helderberg Chess Club Open 2026 (A) Details
Standard 3 Guo, A (Aleks) 4 1 3 Western Cape Schools 2022 (U11 Boys) CT Metro Schools Individual Closed 2026 (U15 Boys) Details
Standard 4 Hagen, S (Sophia) 4 1 3 2022 Cape Of Good Hope Open (U12) Paarl Boys' High School Chess Festival 2025 (Primary Schools) Details
Standard 5 Osborne, H (Hannah) 3 0 3 2022 Cape Of Good Hope Open (U12) WP Closed 2022 (U12) Details
Rapid 1 Salimu, C (Chase) 3 0 3 District North 2022 (U11) 4th Curro Durbanville Rapid Open 2025 (Championship) Details
Rapid 2 Maruma, KB (Kamogelo) 3 2 1 Curro Durbanville Chess Open Rapid 2022 (U12) Curro Durbanville Chess Rapid Open 2024 (Championship) Details
Rapid 3 Rogov, T (Timofey) 2 0 2 Curro Durbanville Chess Rapid Open 2024 (Championship) 4th Curro Durbanville Rapid Open 2025 (Championship) Details
Rapid 4 Fourie, R (Ruan) 2 0 2 Kraaifontein Rapid Open 2022 (U12) Laerskool Welgemoed Rapid 2024 (U14) Details
Rapid 5 Matima, A (Aiden) 2 2 0 Laerskool Welgemoed 12th Annual Chess Challenge 2022 (U12) Laerskool Welgemoed Rapid 2024 (U14) Details
Blitz 1 Kleinsmidt, CC (Cherwin Chanson) 2 2 0 Casuarina International 2023 (Blitz) Hermanus Chess Club Open 2025 (Blitz) Details