PLAYER PAGE
Ruan Krog
1170161725Tshwane (GTP)Personal
Main rating
| Rating | 1349.1 |
| K-factor | 36 |
| Floor | 869.3 |
| Highest | 1398.7 (2026-01-01) |
| Min/Max +/- allowed | 125 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1309.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1349.1 |
| K-factor | 36 |
| Floor | 869.3 |
| Highest | 1398.7 (2026-01-01) |
| Min/Max +/- allowed | 124.9 |
Standard rating
| Rating | 1357.4 |
| K-factor | 36 |
| Floor | 881.7 |
| Highest | 1403 (2026-01-01) |
| Min/Max +/- allowed | 124.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1309.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1357.4 |
| K-factor | 36 |
| Floor | 881.7 |
| Highest | 1403 (2026-01-01) |
| Min/Max +/- allowed | 124.2 |
Rapid rating
| Rating | 1166.5 |
| 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 | 1166.5 |
| 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 (U9) | Standard | 2026-08-22 | 2026-08-22 | Tshwane (GTP) | 5 | 1349.1 | 5 | 4.5 | 1391.8 | 13.1 | Details |
| 2 | 2026 Etienne Lewis (U10) | Standard | 2026-08-08 | 2026-08-10 | Tshwane (GTP) | 7 | 1349.1 | 6 | 1 | 946.3 | -101.1 | Details |
| 3 | 2026 Jacaranda Round Robin Open Chess Tournament (U10) | Standard | 2026-08-01 | 2026-08-01 | Tshwane (GTP) | 5 | 1349.1 | 5 | 3 | 1519.4 | 24.6 | Details |
| 4 | 2026 Tshwane North D3 Cluster 4&5 Teams (U9) | Standard | 2026-07-26 | 2026-07-26 | Tshwane (GTP) | 5 | 1349.1 | 5 | 5 | 1572.1 | 40.8 | Details |
| 5 | Elise Steenkamp 2026 (Knight) | Standard | 2026-06-13 | 2026-06-14 | Tshwane (GTP) | 5 | 1359.7 | 5 | 3 | 1412.8 | 12 | Details |
| 6 | 2026 D3 Tshwane North Individuals (U9) | Standard | 2026-05-09 | 2026-05-09 | Tshwane (GTP) | 5 | 1324.9 | 5 | 4 | 1515.2 | 34.8 | Details |
| 7 | 2026 PBHS Open (U10) | Standard | 2026-04-25 | 2026-04-25 | Tshwane (GTP) | 5 | 1370 | 5 | 2 | 1148.2 | -40 | Details |
| 8 | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U9) | Standard | 2026-04-11 | 2026-04-11 | Tshwane (GTP) | 5 | 1370 | 5 | 3 | 1332.7 | -5.1 | Details |
| 9 | Gauteng Inter-Region at Emerald Resort 2025 (U10 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1352.2 | 5 | 4 | 1517 | 19.2 | Details |
| 10 | 2025 Gauteng Top Schools Teams (U9) | Standard | 2025-08-29 | 2025-08-29 | Tshwane (GTP) | 5 | 1379.3 | 5 | 3 | 1372 | -1.3 | Details |
| 11 | 2025 Tshwane North District CLOSED Team Championships (D3) (U9) | Standard | 2025-08-16 | 2025-08-16 | Tshwane (GTP) | 5 | 1288.6 | 5 | 4 | 1506.5 | 20.6 | Details |
| 12 | 2025 Etienne Lewis Closed Chess Tournament (U10) | Standard | 2025-08-08 | 2025-08-10 | Tshwane (GTP) | 7 | 1288.6 | 6 | 3 | 1337 | 6.4 | Details |
| 13 | 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U9) | Standard | 2025-07-26 | 2025-07-26 | Tshwane (GTP) | 5 | 1208.8 | 5 | 4 | 1437.9 | 23.1 | Details |
| 14 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U9 Open) | Standard | 2025-05-24 | 2025-05-24 | Tshwane (GTP) | 5 | 1163.7 | 5 | 3 | 1318.8 | 14.4 | Details |
| 15 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U9 Open) | Standard | 2025-05-10 | 2025-05-10 | Tshwane (GTP) | 5 | 1163.7 | 5 | 3 | 1355.6 | 17.9 | Details |
| 16 | 2025 Silver Lakes Chess Club Open Chess Tournament (U10) | Standard | 2025-05-03 | 2025-05-03 | Tshwane (GTP) | 5 | 1163.7 | 5 | 1 | 1013.4 | -14.1 | Details |
| 17 | 2025 Piet Robbertse Fide Rated Open Chess Tournament (E) | Standard | 2025-02-01 | 2025-02-01 | Tshwane (GTP) | 5 | 1160.9 | 5 | 2 | 1160.3 | -0.9 | Details |
| 18 | 2025 Tshwane Chess OPEN Registration Tournament (U10) | Standard | 2025-01-25 | 2025-01-25 | Tshwane (GTP) | 5 | 1138.2 | 5 | 1 | 981.4 | -14.8 | Details |
| 19 | Gauteng Inter-Region at UJ 2024 (U8 Mixed) | Standard | 2024-12-06 | 2024-12-07 | Johannesburg Metro (GJM) | 5 | 1169.3 | 5 | 1 | 1005.9 | -17.3 | Details |
| 20 | 2024 Etienne Lewis (U8) | Standard | 2024-08-31 | 2024-08-31 | Tshwane (GTP) | 5 | 1154.1 | 5 | 2.5 | 1238 | 8.4 | Details |
| 21 | 2024 Tshwane North School District Cluster 4 & 5 Team League (U9) | Standard | 2024-07-20 | 2024-07-20 | Tshwane (GTP) | 5 | 1159.5 | 5 | 2 | 1133.7 | -3 | Details |
| 22 | 2024 Tshwane Chess OPEN Registration Tournament (F) | Standard | 2024-01-27 | 2024-01-27 | Tshwane (GTP) | 5 | 1177.1 | 5 | 2 | 1084.7 | -9.8 | Details |
| 23 | 2023 U8 Open Chess Tournament | Rapid | 2023-09-02 | 2023-09-02 | Tshwane (GTP) | 5 | 1200 | 4 | 1 | 973.2 | -12.9 | 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 | 25 |
| Draws | 1 |
| Losses | 15 |
| White | 20 |
| Black | 21 |
| White wins | 11 |
| Black wins | 14 |
| Score | 25.5 |
| Percent | 62.2 |
| Dp | 103.7 |
| AOR | 1241.2 |
| Performance | 1344.9 |
Game statistics (History)
| Games | 116 |
| Wins | 59 |
| Draws | 6 |
| Losses | 51 |
| White | 59 |
| Black | 57 |
| White wins | 31 |
| Black wins | 28 |
| Score | 62 |
| Percent | 53.4 |
| Dp | 29.3 |
| AOR | 1243.8 |
| Performance | 1273.1 |
Rankings (Main)
| National | |
| Overall | 4735 |
| Gender | 3932 |
| Age group | 218 |
| Gender/Age | 176 |
| Provincial | |
| Overall | 1619 |
| Gender | 1345 |
| Age group | 79 |
| Gender/Age | 64 |
| Regional | |
| Overall | 555 |
| Gender | 460 |
| Age group | 34 |
| Gender/Age | 29 |
Rankings (Standard)
| National | |
| Overall | 4031 |
| Gender | 3328 |
| Age group | 186 |
| Gender/Age | 148 |
| Provincial | |
| Overall | 1447 |
| Gender | 1207 |
| Age group | 71 |
| Gender/Age | 58 |
| Regional | |
| Overall | 524 |
| Gender | 433 |
| Age group | 31 |
| Gender/Age | 27 |
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 | 25.5 |
| Percent | 62.2 |
| Aor | 1241.2 |
| Dp | 103.7 |
| Prat | 1344.9 |
Performance (12 months)
| Games | 46 |
| Score | 29.5 |
| Percent | 64.1 |
| Aor | 1243.5 |
| Dp | 120.1 |
| Prat | 1363.6 |
Performance (History)
| Games | 116 |
| Score | 62 |
| Percent | 53.4 |
| Aor | 1243.8 |
| Dp | 29.3 |
| Prat | 1273.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Jansen Van Vuuren, C (Clana) | 4 | 3 | 1 | 2024 Tshwane Chess OPEN Registration Tournament (F) | 2026 Etienne Lewis (U10) | Details |
| Overall | 2 | Botha, Z (Zander) | 3 | 2 | 1 | 2024 Etienne Lewis (U8) | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U9) | Details |
| Overall | 3 | Kgwale, K (Keratilwe) | 3 | 1 | 2 | Gauteng Inter-Region at UJ 2024 (U8 Mixed) | Elise Steenkamp 2026 (Knight) | Details |
| Overall | 4 | Viljoen, R (Rouxle) | 3 | 2 | 1 | 2025 Tshwane Chess OPEN Registration Tournament (U10) | 2026 Etienne Lewis (U10) | Details |
| Overall | 5 | Erasmus, J (Jacobus) | 2 | 1 | 1 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U9 Open) | 2025 Tshwane North School District CLOSED Individual Chess Championship (U9 Open) | Details |
| Standard | 1 | Jansen Van Vuuren, C (Clana) | 4 | 3 | 1 | 2024 Tshwane Chess OPEN Registration Tournament (F) | 2026 Etienne Lewis (U10) | Details |
| Standard | 2 | Botha, Z (Zander) | 3 | 2 | 1 | 2024 Etienne Lewis (U8) | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U9) | Details |
| Standard | 3 | Kgwale, K (Keratilwe) | 3 | 1 | 2 | Gauteng Inter-Region at UJ 2024 (U8 Mixed) | Elise Steenkamp 2026 (Knight) | Details |
| Standard | 4 | Viljoen, R (Rouxle) | 3 | 2 | 1 | 2025 Tshwane Chess OPEN Registration Tournament (U10) | 2026 Etienne Lewis (U10) | Details |
| Standard | 5 | Modingoane, K (Kaboentle) | 2 | 1 | 1 | 2026 PBHS Open (U10) | 2026 Etienne Lewis (U10) | Details |