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

PLAYER PAGE

Jerolin Johnson

1080147904
West Coast (WCU)
Personal
Main rating
Rating 1272.4
K-factor 36
Floor 772.4
Highest 1272.4 (2026-10-01)
Min/Max +/- allowed 150
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1212.3
Final +/- 0
New Rating
()
Rating 1272.4
K-factor 36
Floor 772.4
Highest 1272.4 (2026-10-01)
Min/Max +/- allowed 149.6
Standard rating
Rating 1231.8
K-factor 36
Floor 727.2
Highest 1268.5 (2024-05-01)
Min/Max +/- allowed 150.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1183.2
Final +/- 0
New Rating
()
Rating 1231.8
K-factor 36
Floor 727.2
Highest 1268.5 (2024-05-01)
Min/Max +/- allowed 150.4
Rapid rating
Rating 1283.9
K-factor 36
Floor 777.4
Highest 1289 (2022-12-01)
Min/Max +/- allowed 146.1
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1239
Final +/- 0
New Rating
()
Rating 1283.9
K-factor 36
Floor 777.4
Highest 1289 (2022-12-01)
Min/Max +/- allowed 146.1
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 Rooibos Open 2026 (Intermediate) Rapid 2026-08-29 2026-08-29 West Coast (WCU) 5 1267.2 5 3 1310.9 5.2 Details
2 Western Cape Women's Championship 2026 (Intermediate) Standard 2026-08-09 2026-08-10 West Coast (WCU) 5 1267.2 5 2 1343.9 14.4 Details
3 West Coast Schools Prestige Individuals Championships 2026 (U18 Boys) Standard 2026-02-28 2026-03-07 West Coast (WCU) 6 1271.1 6 2.5 1183.9 -18.4 Details
4 Upper West Coast Schools Prestige Individuals Championship 2026 (U18 Boys) Rapid 2026-02-14 2026-02-14 West Coast (WCU) 5 1262.2 4 2 1348.6 4.9 Details
5 Rooibos Open 2025 (Intermediate) Standard 2025-08-30 2025-08-30 West Coast (WCU) 5 1264.4 5 2.5 1244.4 -1.2 Details
6 Shakirah Ruiters Youth Tournament 2025 (Advanced) Rapid 2025-06-16 2025-06-16 West Coast (WCU) 5 1236 5 4 1459 15.3 Details
7 Brenton Cupido West Coast Development Championship 2025 (U17 Boys) Rapid 2025-05-24 2025-05-24 West Coast (WCU) 5 1178.5 5 3.5 1388 14.4 Details
8 West Coast And Mykonos Open 2025 (Advanced) Standard 2025-05-02 2025-05-04 West Coast (WCU) 6 1178.5 6 3 1312.6 17.6 Details
9 Upper West Coast Presrige 2025 (U17 Boys) Rapid 2025-02-22 2025-02-22 West Coast (WCU) 5 1174.9 5 2 1166.1 -0.2 Details
10 West Coast Grand Challange League 2024 (HS Champions) Rapid 2024-10-26 2024-10-26 West Coast (WCU) 5 1174.5 5 1 1021.7 -8.9 Details
11 The Rooibos Open 2024 (Elite) Rapid 2024-08-24 2024-08-24 West Coast (WCU) 5 1216.8 4 0 840 -23.4 Details
12 Vredendal North CC Open 2024 (Elite) Rapid 2024-07-27 2024-07-27 West Coast (WCU) 5 1268.6 5 0 853.2 -28.8 Details
13 Bo-Weskus Skole Skaak Top Skole 2024 (O18) Rapid 2024-05-11 2024-05-11 West Coast (WCU) 5 1145.8 5 1 1013.6 -8.9 Details
14 West Coast & Mykonos Open 2024 (Open) Standard 2024-05-17 2024-05-19 West Coast (WCU) 6 1145.8 5 4 1605.6 51 Details
15 Lambersbaai Open 2024 (A) Rapid 2024-05-01 2024-05-01 West Coast (WCU) 5 1145.8 4 3 1471.1 19 Details
16 Clanwilliam Open 2022 (C) Rapid 2022-12-10 2022-12-10 West Coast (WCU) 5 1119.4 5 3 1280.5 12.9 Details
17 West Coast Open 2022 (Open) Standard 2022-11-05 2022-11-05 West Coast (WCU) 6 1200 6 0 851.9 -40.6 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 20
Wins 9
Draws 1
Losses 10
White 11
Black 9
White wins 7
Black wins 2
Score 9.5
Percent 47.5
Dp -21.2
AOR 1309.8
Performance 1288.6
Game statistics (History)
Games 85
Wins 35
Draws 3
Losses 47
White 42
Black 43
White wins 18
Black wins 17
Score 36.5
Percent 42.9
Dp -60
AOR 1273.7
Performance 1213.7
Rankings (Main)
National
Overall 7333
Gender 5949
Age group 817
Gender/Age 687
Provincial
Overall 2194
Gender 1690
Age group 236
Gender/Age 189
Regional
Overall 221
Gender 163
Age group 21
Gender/Age 20
Rankings (Standard)
National
Overall 8072
Gender 6318
Age group 850
Gender/Age 708
Provincial
Overall 2343
Gender 1734
Age group 259
Gender/Age 207
Regional
Overall 179
Gender 122
Age group 20
Gender/Age 19
Rankings (Rapid)
National
Overall 2407
Gender 1964
Age group 185
Gender/Age 166
Provincial
Overall 980
Gender 778
Age group 68
Gender/Age 62
Regional
Overall 198
Gender 144
Age group 17
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 20
Score 9.5
Percent 47.5
Aor 1309.8
Dp -21.2
Prat 1288.6
Performance (12 months)
Games 20
Score 9.5
Percent 47.5
Aor 1309.8
Dp -21.2
Prat 1288.6
Performance (History)
Games 85
Score 36.5
Percent 42.9
Aor 1273.7
Dp -60
Prat 1213.7
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Salomo, C (Cohen) 3 1 2 West Coast & Mykonos Open 2024 (Open) Rooibos Open 2026 (Intermediate) Details
Overall 2 Van Wyk, E (Ebrahim) 2 1 1 Lambersbaai Open 2024 (A) Vredendal North CC Open 2024 (Elite) Details
Overall 3 Arendse, Q (Quinwinne) 2 1 1 West Coast & Mykonos Open 2024 (Open) West Coast And Mykonos Open 2025 (Advanced) Details
Overall 4 Marobi, M (Miguel) 2 1 1 Brenton Cupido West Coast Development Championship 2025 (U17 Boys) West Coast Schools Prestige Individuals Championships 2026 (U18 Boys) Details
Overall 5 Berend, L (Luciano) 2 0 2 Upper West Coast Presrige 2025 (U17 Boys) Upper West Coast Schools Prestige Individuals Championship 2026 (U18 Boys) Details
Standard 1 Ellman, A (Anne-Belle) 2 0 2 West Coast & Mykonos Open 2024 (Open) Rooibos Open 2025 (Intermediate) Details
Standard 2 Arendse, Q (Quinwinne) 2 1 1 West Coast & Mykonos Open 2024 (Open) West Coast And Mykonos Open 2025 (Advanced) Details
Standard 3 Salomo, C (Cohen) 2 1 1 West Coast & Mykonos Open 2024 (Open) West Coast And Mykonos Open 2025 (Advanced) Details
Rapid 1 Van Wyk, E (Ebrahim) 2 1 1 Lambersbaai Open 2024 (A) Vredendal North CC Open 2024 (Elite) Details
Rapid 2 Ellman, A (Andries) 2 0 2 Clanwilliam Open 2022 (C) Lambersbaai Open 2024 (A) Details
Rapid 3 Van Rooyen, S (Sergio) 2 0 2 Bo-Weskus Skole Skaak Top Skole 2024 (O18) Vredendal North CC Open 2024 (Elite) Details
Rapid 4 Berend, L (Luciano) 2 0 2 Upper West Coast Presrige 2025 (U17 Boys) Upper West Coast Schools Prestige Individuals Championship 2026 (U18 Boys) Details