PLAYER PAGE
Gerhard Krog
1130144857Tshwane (GTP)Personal
Main rating
| Rating | 1229 |
| K-factor | 36 |
| Floor | 784 |
| Highest | 1349.5 (2024-10-01) |
| Min/Max +/- allowed | 134 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1226.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1229 |
| K-factor | 36 |
| Floor | 784 |
| Highest | 1349.5 (2024-10-01) |
| Min/Max +/- allowed | 134 |
Standard rating
| Rating | 1223 |
| K-factor | 36 |
| Floor | 787.5 |
| Highest | 1347.2 (2024-10-01) |
| Min/Max +/- allowed | 134.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1226.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1223 |
| K-factor | 36 |
| Floor | 787.5 |
| Highest | 1347.2 (2024-10-01) |
| Min/Max +/- allowed | 134.4 |
Rapid 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 |
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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Gauteng North School D3 Team League Finals (U13) | Standard | 2026-08-22 | 2026-08-22 | Tshwane (GTP) | 5 | 1229 | 5 | 4 | 1364.4 | 17.2 | Details |
| 2 | 2026 Etienne Lewis (U14) | Standard | 2026-08-08 | 2026-08-10 | Tshwane (GTP) | 7 | 1229 | 7 | 2 | 1070.4 | -56.5 | Details |
| 3 | 2026 Jacaranda Round Robin Open Chess Tournament (J) | Standard | 2026-08-01 | 2026-08-01 | Tshwane (GTP) | 5 | 1229 | 5 | 1 | 976.3 | -51.9 | Details |
| 4 | 2026 Tshwane North D3 Cluster 4&5 Teams (U13) | Standard | 2026-07-27 | 2026-07-27 | Tshwane (GTP) | 5 | 1229 | 4 | 4 | 1570.3 | 41.2 | Details |
| 5 | Elise Steenkamp 2026 (Bishop 1) | Standard | 2026-06-13 | 2026-06-14 | Tshwane (GTP) | 5 | 1242.4 | 5 | 3 | 1420.1 | 36.5 | Details |
| 6 | 2026 D3 Tshwane North Individuals (U13 Boys) | Standard | 2026-05-09 | 2026-05-09 | Tshwane (GTP) | 5 | 1266 | 5 | 2 | 1124.5 | -23.5 | Details |
| 7 | 2026 PBHS Open (D) | Standard | 2026-04-25 | 2026-04-25 | Tshwane (GTP) | 5 | 1272.5 | 5 | 2 | 1117.8 | -25.8 | Details |
| 8 | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U13 Mixed) | Standard | 2026-04-11 | 2026-04-11 | Tshwane (GTP) | 5 | 1272.5 | 5 | 3.5 | 1388.7 | 19.3 | Details |
| 9 | Gauteng Inter-Region at Emerald Resort 2025 (U14 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1286.1 | 5 | 2 | 1236.3 | -6.4 | Details |
| 10 | 2025 Gauteng Top Schools Teams (U11) | Standard | 2025-08-29 | 2025-08-29 | Tshwane (GTP) | 5 | 1303.2 | 5 | 3 | 1345.6 | 3.5 | Details |
| 11 | 2025 Tshwane North District CLOSED Team Championships (D3) (U11) | Standard | 2025-08-16 | 2025-08-16 | Tshwane (GTP) | 5 | 1270.5 | 5 | 4 | 1499.4 | 23.1 | Details |
| 12 | 2025 Etienne Lewis Closed Chess Tournament (U12) | Standard | 2025-08-08 | 2025-08-10 | Tshwane (GTP) | 7 | 1270.5 | 7 | 2.5 | 1152.4 | -19 | Details |
| 13 | 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U11) | Standard | 2025-07-26 | 2025-07-26 | Tshwane (GTP) | 5 | 1263.5 | 5 | 3 | 1295.7 | 3.8 | Details |
| 14 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U11 Open) | Standard | 2025-05-24 | 2025-05-24 | Tshwane (GTP) | 5 | 1253.3 | 5 | 3 | 1285 | 2.5 | Details |
| 15 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U11 Open) | Standard | 2025-05-10 | 2025-05-10 | Tshwane (GTP) | 5 | 1253.3 | 5 | 4 | 1460.9 | 21.1 | Details |
| 16 | 2025 Silver Lakes Chess Club Open Chess Tournament (D) | Standard | 2025-05-03 | 2025-05-03 | Tshwane (GTP) | 5 | 1253.3 | 5 | 2 | 1076.8 | -17.8 | Details |
| 17 | 2025 Piet Robbertse Fide Rated Open Chess Tournament (D) | Standard | 2025-02-01 | 2025-02-02 | Tshwane (GTP) | 5 | 1268.9 | 5 | 2 | 1197.9 | -8.6 | Details |
| 18 | 2025 Tshwane Chess OPEN Registration Tournament (U12) | Standard | 2025-01-25 | 2025-01-25 | Tshwane (GTP) | 5 | 1215.6 | 5 | 2 | 1209.4 | -1.3 | Details |
| 19 | Gauteng Inter-Region at UJ 2024 (U12 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1212.6 | 5 | 3 | 1233.6 | 1.7 | Details |
| 20 | Gauteng Top Schools 2024 (Primary Reserves) | Standard | 2024-10-04 | 2024-10-04 | Ekurhuleni (GE) | 5 | 1181.5 | 2 | 2 | 1625 | 17.3 | Details |
| 21 | 2024 Etienne Lewis (U12) | Standard | 2024-08-30 | 2024-09-01 | Tshwane (GTP) | 7 | 1180.8 | 7 | 2.5 | 1178 | 0.4 | Details |
| 22 | 2024 Tshwane North School District Team League Finals (U11) | Standard | 2024-08-03 | 2024-08-03 | Tshwane (GTP) | 5 | 1146.7 | 5 | 3 | 1335.1 | 18.9 | Details |
| 23 | 2024 Tshwane North School District Cluster 4 & 5 Team League (U11) | Standard | 2024-07-20 | 2024-07-20 | Tshwane (GTP) | 3 | 1118.6 | 3 | 1.5 | 1376 | 15.6 | Details |
| 24 | 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (D) | Standard | 2024-06-01 | 2024-06-01 | Tshwane (GTP) | 5 | 1158.6 | 4 | 0 | 874.5 | -22.2 | Details |
| 25 | District 3 Cluster 4 and 5 Individuals 2024 (U11 Boys) | Standard | 2024-05-04 | 2024-05-04 | Tshwane (GTP) | 5 | 1132.9 | 5 | 3 | 1285 | 14.3 | Details |
| 26 | 2024 Piet Robbertse Open Chess Tournament (D2) | Standard | 2024-02-03 | 2024-02-04 | Tshwane (GTP) | 5 | 1128.8 | 5 | 2 | 1142.5 | 2.3 | Details |
| 27 | 2024 Tshwane Chess OPEN Registration Tournament (D1) | Standard | 2024-01-27 | 2024-01-27 | Tshwane (GTP) | 5 | 1180.5 | 5 | 1 | 877 | -28.7 | Details |
| 28 | 2023 Centurion Chess Open (E) | Standard | 2023-09-23 | 2023-09-23 | Tshwane (GTP) | 5 | 1218.7 | 5 | 2 | 1137.6 | -8.6 | Details |
| 29 | 2023 Alekhine Open Tournament (E+F) | Standard | 2023-09-09 | 2023-09-09 | Tshwane (GTP) | 5 | 1218.7 | 5 | 2 | 1109.5 | -12.8 | Details |
| 30 | 2023 Tshwane North School District CLOSED League Championships (D3) | Standard | 2023-08-12 | 2023-08-12 | Tshwane (GTP) | 5 | 1231.5 | 5 | 2 | 1149 | -7.3 | Details |
| 31 | 2023 Tshwane North School District CLOSED Individual Championships (D3) | Standard | 2023-05-13 | 2023-05-13 | Tshwane (GTP) | 5 | 1192 | 5 | 4 | 1387.8 | 19.6 | Details |
| 32 | Tuks Junior Developmental Tournament 2022 (Yellow) | Standard | 2022-08-06 | 2022-08-06 | Tshwane (GTP) | 5 | 1200 | 5 | 2 | 1152.7 | -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 | 41 |
| Wins | 21 |
| Draws | 1 |
| Losses | 19 |
| White | 18 |
| Black | 23 |
| White wins | 11 |
| Black wins | 10 |
| Score | 21.5 |
| Percent | 52.4 |
| Dp | 20.7 |
| AOR | 1216.6 |
| Performance | 1237.4 |
Game statistics (History)
| Games | 159 |
| Wins | 76 |
| Draws | 6 |
| Losses | 77 |
| White | 78 |
| Black | 81 |
| White wins | 42 |
| Black wins | 34 |
| Score | 79 |
| Percent | 49.7 |
| Dp | -2.7 |
| AOR | 1229.1 |
| Performance | 1226.4 |
Rankings (Main)
| National | |
| Overall | 10006 |
| Gender | 7950 |
| Age group | 1796 |
| Gender/Age | 1314 |
| Provincial | |
| Overall | 3464 |
| Gender | 2702 |
| Age group | 623 |
| Gender/Age | 447 |
| Regional | |
| Overall | 1073 |
| Gender | 839 |
| Age group | 188 |
| Gender/Age | 134 |
Rankings (Standard)
| National | |
| Overall | 8637 |
| Gender | 6745 |
| Age group | 1590 |
| Gender/Age | 1141 |
| Provincial | |
| Overall | 3104 |
| Gender | 2390 |
| Age group | 570 |
| Gender/Age | 402 |
| Regional | |
| Overall | 1067 |
| Gender | 823 |
| Age group | 193 |
| Gender/Age | 136 |
Rankings (Rapid)
| 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 |
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 | 41 |
| Score | 21.5 |
| Percent | 52.4 |
| Aor | 1216.6 |
| Dp | 20.7 |
| Prat | 1237.4 |
Performance (12 months)
| Games | 46 |
| Score | 23.5 |
| Percent | 51.1 |
| Aor | 1228 |
| Dp | 9.2 |
| Prat | 1237.3 |
Performance (History)
| Games | 159 |
| Score | 79 |
| Percent | 49.7 |
| Aor | 1229.1 |
| Dp | -2.7 |
| Prat | 1226.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Marais, L (Luke) | 4 | 3 | 1 | 2023 Tshwane North School District CLOSED League Championships (D3) | 2026 Etienne Lewis (U14) | Details |
| Overall | 2 | Ebersohn, G (Gerhard) | 3 | 3 | 0 | 2024 Tshwane North School District Cluster 4 & 5 Team League (U11) | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U13 Mixed) | Details |
| Overall | 3 | Haupt, A (Abigail) | 3 | 1 | 2 | Tuks Junior Developmental Tournament 2022 (Yellow) | 2026 Etienne Lewis (U14) | Details |
| Overall | 4 | Mashishi, A (Aoretwe-Kgalalelo Leeu) | 2 | 0 | 2 | 2026 Tshwane North D3 Cluster 4&5 Teams (U13) | 2026 Gauteng North School D3 Team League Finals (U13) | Details |
| Overall | 5 | Mamphweli, T (Tshedza) | 2 | 1 | 1 | 2024 Piet Robbertse Open Chess Tournament (D2) | 2024 Etienne Lewis (U12) | Details |
| Standard | 1 | Marais, L (Luke) | 4 | 3 | 1 | 2023 Tshwane North School District CLOSED League Championships (D3) | 2026 Etienne Lewis (U14) | Details |
| Standard | 2 | Haupt, A (Abigail) | 3 | 1 | 2 | Tuks Junior Developmental Tournament 2022 (Yellow) | 2026 Etienne Lewis (U14) | Details |
| Standard | 3 | Ebersohn, G (Gerhard) | 3 | 3 | 0 | 2024 Tshwane North School District Cluster 4 & 5 Team League (U11) | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U13 Mixed) | Details |
| Standard | 4 | Peenz, M (Marnus) | 2 | 0 | 2 | District 3 Cluster 4 and 5 Individuals 2024 (U11 Boys) | 2024 Tshwane North School District Team League Finals (U11) | Details |
| Standard | 5 | Moatse, L (Lebogang) | 2 | 2 | 0 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U11 Open) | 2026 Gauteng North School D3 Team League Finals (U13) | Details |