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

PLAYER PAGE

Janko Pretorius

1170318676
Waterberg (LWM)
Personal
Main rating
Rating 1314.8
K-factor 36
Floor 814.8
Highest 1314.8 (2026-09-01)
Min/Max +/- allowed 141
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1247.7
Final +/- 0
New Rating
()
Rating 1314.8
K-factor 36
Floor 814.8
Highest 1314.8 (2026-09-01)
Min/Max +/- allowed 140.8
Standard rating
Rating 1241
K-factor 36
Floor 741
Highest 1241 (2026-01-01)
Min/Max +/- allowed 156.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1241
K-factor 36
Floor 741
Highest 1241 (2026-01-01)
Min/Max +/- allowed 156.4
Rapid rating
Rating 1338.5
K-factor 36
Floor 838.7
Highest 1338.7 (2026-07-01)
Min/Max +/- allowed 136.1
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1313.4
Final +/- 0
New Rating
()
Rating 1338.5
K-factor 36
Floor 838.7
Highest 1338.7 (2026-07-01)
Min/Max +/- allowed 136.1
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2025-04-01)
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 (2025-04-01)
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 Waterberg Junior Qualifying Tournament 6 (U10) Rapid 2026-08-01 2026-08-01 Waterberg (LWM) 5 1314.8 5 4.5 1293.2 2.9 Details
2 Waterberg Junior Qualifying Tournament #5 2026 (U10) Rapid 2026-06-20 2026-06-20 Waterberg (LWM) 5 1302.6 5 5 1302.6 9.3 Details
3 Waterberg Junior Qualifying Tournament #4 2026 (U10) Rapid 2026-05-16 2026-05-16 Waterberg (LWM) 5 1239.6 5 4.5 1535 38.8 Details
4 NaboomSpar Open Chess Tournament 27 Apr 2026 Rapid 2026-04-27 2026-04-27 Waterberg (LWM) 6 1239.6 6 4.5 1410.6 24.2 Details
5 Waterberg Open Chess Tournament 21 March 2026 Rapid 2026-03-21 2026-03-21 Waterberg (LWM) 5 1255.4 5 2 1113.8 -15.8 Details
6 2025 Mzansi Individual Championships (U10 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1223.3 6 2 1320.6 13.4 Details
7 2025 Mzansi Inter Provincial Team Championships (U10 Combined) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1223.3 6 2.5 1264.1 4.6 Details
8 NABOOMSPAR Open Chess Tournament 21 Mar 2025 (B) Rapid 2025-03-21 2025-03-21 Capricorn (LCP) 5 1200 5 3.5 1370.5 11.6 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 26
Wins 19
Draws 3
Losses 4
White 12
Black 14
White wins 7
Black wins 12
Score 20.5
Percent 78.8
Dp 245.2
AOR 1088.9
Performance 1334.1
Game statistics (History)
Games 43
Wins 26
Draws 5
Losses 12
White 20
Black 23
White wins 11
Black wins 15
Score 28.5
Percent 66.3
Dp 138.4
AOR 1188.3
Performance 1326.7
Rankings (Main)
National
Overall 5750
Gender 4726
Age group 271
Gender/Age 217
Provincial
Overall 170
Gender 159
Age group 7
Gender/Age 5
Regional
Overall 7
Gender 6
Age group 1
Gender/Age 1
Rankings (Standard)
National
Overall 7759
Gender 6130
Age group 451
Gender/Age 338
Provincial
Overall 182
Gender 162
Age group 8
Gender/Age 6
Regional
Overall 5
Gender 4
Age group 1
Gender/Age 1
Rankings (Rapid)
National
Overall 1553
Gender 1305
Age group 82
Gender/Age 67
Provincial
Overall 96
Gender 91
Age group 5
Gender/Age 4
Regional
Overall 4
Gender 4
Age group 1
Gender/Age 1
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 26
Score 20.5
Percent 78.8
Aor 1088.9
Dp 245.2
Prat 1334.1
Performance (12 months)
Games 38
Score 25
Percent 65.8
Aor 1186.7
Dp 134.2
Prat 1320.9
Performance (History)
Games 43
Score 28.5
Percent 66.3
Aor 1188.3
Dp 138.4
Prat 1326.7
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Sekhaolelo, K (Kgothatso) 2 2 0 Waterberg Junior Qualifying Tournament #5 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Overall 2 Maswabela, B (Bokang) 2 1 1 Waterberg Junior Qualifying Tournament #5 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Overall 3 Makgato, O (Oratilwe) 2 1 1 Waterberg Junior Qualifying Tournament #4 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Overall 4 Molalatladi, K (Kgaugelo) 2 0 2 Waterberg Junior Qualifying Tournament #4 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Rapid 1 Makgato, O (Oratilwe) 2 1 1 Waterberg Junior Qualifying Tournament #4 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Rapid 2 Molalatladi, K (Kgaugelo) 2 0 2 Waterberg Junior Qualifying Tournament #4 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Rapid 3 Sekhaolelo, K (Kgothatso) 2 2 0 Waterberg Junior Qualifying Tournament #5 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details
Rapid 4 Maswabela, B (Bokang) 2 1 1 Waterberg Junior Qualifying Tournament #5 2026 (U10) 2026 Waterberg Junior Qualifying Tournament 6 (U10) Details