PLAYER PAGE
Jerolin Johnson
1080147904West Coast (WCU)Personal
Main rating
| Rating | 1267.2 |
| K-factor | 36 |
| Floor | 771.1 |
| Highest | 1271.1 (2026-02-28) |
| Min/Max +/- allowed | 150 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 2.78 |
| SWe | 0.14 |
| Temp +/- | 5.2 |
| Penalties | 0 |
| Weight perform | 1227.8 |
| Final +/- | +5.2 |
| New Rating () | |
| Rating | 1272.4 |
| K-factor | 36 |
| Floor | 772.4 |
| Highest | 1272.4 (2026-09-01) |
| 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 | 1199.1 |
| 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 | 1277.4 |
| K-factor | 36 |
| Floor | 777.4 |
| Highest | 1289 (2022-12-01) |
| Min/Max +/- allowed | 146.1 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 2.82 |
| SWe | 0.18 |
| Temp +/- | 6.6 |
| Penalties | 0 |
| Weight perform | 1255.7 |
| Final +/- | +6.6 |
| 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
| # | 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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 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 |
| 2 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | Shakirah Ruiters Youth Tournament 2025 (Advanced) | Rapid | 2025-06-16 | 2025-06-16 | West Coast (WCU) | 5 | 1236 | 5 | 4 | 1459 | 15.3 | Details |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | The Rooibos Open 2024 (Elite) | Rapid | 2024-08-24 | 2024-08-24 | West Coast (WCU) | 5 | 1216.8 | 4 | 0 | 840 | -23.4 | Details |
| 11 | 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 |
| 12 | 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 |
| 13 | 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 |
| 14 | Lambersbaai Open 2024 (A) | Rapid | 2024-05-01 | 2024-05-01 | West Coast (WCU) | 5 | 1145.8 | 4 | 3 | 1471.1 | 19 | Details |
| 15 | Clanwilliam Open 2022 (C) | Rapid | 2022-12-10 | 2022-12-10 | West Coast (WCU) | 5 | 1119.4 | 5 | 3 | 1280.5 | 12.9 | Details |
| 16 | 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 | 7697 |
| Gender | 6232 |
| Age group | 859 |
| Gender/Age | 721 |
| Provincial | |
| Overall | 2230 |
| Gender | 1719 |
| Age group | 240 |
| Gender/Age | 194 |
| Regional | |
| Overall | 232 |
| Gender | 169 |
| Age group | 22 |
| Gender/Age | 21 |
Rankings (Standard)
| National | |
| Overall | 8200 |
| Gender | 6426 |
| Age group | 886 |
| Gender/Age | 734 |
| Provincial | |
| Overall | 2340 |
| Gender | 1737 |
| Age group | 259 |
| Gender/Age | 207 |
| Regional | |
| Overall | 184 |
| Gender | 128 |
| Age group | 19 |
| Gender/Age | 18 |
Rankings (Rapid)
| National | |
| Overall | 2562 |
| Gender | 2086 |
| Age group | 196 |
| Gender/Age | 176 |
| Provincial | |
| Overall | 1026 |
| Gender | 808 |
| Age group | 72 |
| Gender/Age | 65 |
| Regional | |
| Overall | 211 |
| Gender | 152 |
| 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 | Arendse, Q (Quinwinne) | 2 | 1 | 1 | West Coast & Mykonos Open 2024 (Open) | West Coast And Mykonos Open 2025 (Advanced) | Details |
| Overall | 2 | Salomo, C (Cohen) | 2 | 1 | 1 | West Coast & Mykonos Open 2024 (Open) | West Coast And Mykonos Open 2025 (Advanced) | Details |
| Overall | 3 | Van Rooyen, S (Sergio) | 2 | 0 | 2 | Bo-Weskus Skole Skaak Top Skole 2024 (O18) | Vredendal North CC Open 2024 (Elite) | Details |
| Overall | 4 | Ellman, A (Andries) | 2 | 0 | 2 | Clanwilliam Open 2022 (C) | Lambersbaai Open 2024 (A) | Details |
| Overall | 5 | Van Wyk, E (Ebrahim) | 2 | 1 | 1 | Lambersbaai Open 2024 (A) | Vredendal North CC Open 2024 (Elite) | 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 | Ellman, A (Andries) | 2 | 0 | 2 | Clanwilliam Open 2022 (C) | Lambersbaai Open 2024 (A) | Details |
| Rapid | 2 | Van Rooyen, S (Sergio) | 2 | 0 | 2 | Bo-Weskus Skole Skaak Top Skole 2024 (O18) | Vredendal North CC Open 2024 (Elite) | Details |
| Rapid | 3 | Berend, L (Luciano) | 2 | 0 | 2 | Upper West Coast Presrige 2025 (U17 Boys) | Upper West Coast Schools Prestige Individuals Championship 2026 (U18 Boys) | Details |
| Rapid | 4 | Van Wyk, E (Ebrahim) | 2 | 1 | 1 | Lambersbaai Open 2024 (A) | Vredendal North CC Open 2024 (Elite) | Details |