PLAYER PAGE
Natalee Koch
2110314036Bojanala Platina (NBR)Personal
Main rating
| Rating | 1024.9 |
| K-factor | 40 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| Min/Max +/- allowed | 166 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 972 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1024.9 |
| K-factor | 40 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| Min/Max +/- allowed | 165.8 |
Standard rating
| Rating | 1017.5 |
| K-factor | 40 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 959.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1017.5 |
| K-factor | 40 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| Min/Max +/- allowed | 165.8 |
Rapid rating
| Rating | 1176.2 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-02-01) |
| 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 | 1176.2 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-02-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1175.7 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-02-01) |
| 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 | 1175.7 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-02-01) |
| 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 | Robday Chess Tournament 2026 (U16) | Rapid | 2026-04-25 | 2026-04-25 | Bojanala Platina (NBR) | 5 | 1156.3 | 4 | 1 | 1093.3 | -8 | Details |
| 2 | Bojanala's Schoemies Open 2026 (Bishops) | Standard | 2026-04-18 | 2026-04-18 | Bojanala Platina (NBR) | 5 | 1156.3 | 5 | 1 | 987.7 | -34.5 | Details |
| 3 | South African Junior Closed Chess Championship 2026 (U16 Girls) | Classical | 2026-03-28 | 2026-04-02 | Bojanala Platina (NBR) | 9 | 1156.3 | 9 | 0.5 | 952.2 | -88.9 | Details |
| 4 | 2025 Mzansi Individual Championships (U16 Girls) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1191.4 | 6 | 1 | 998 | -29.2 | Details |
| 5 | 2025 Mzansi Inter Provincial Team Championships (U18 Girls) | Standard | 2025-12-15 | 2025-12-16 | Nelson Mandela Bay (ENM) | 5 | 1191.4 | 4 | 0 | 894.2 | -24.7 | Details |
| 6 | 2025 Mzansi Inter Provincial Team Championships (U16 Girls) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1191.4 | 0 | 0 | 0 | 0 | Details |
| 7 | Bojanala's Merry ChessMas 2025 (Knights) | Standard | 2025-11-29 | 2025-11-29 | Bojanala Platina (NBR) | 5 | 1191.4 | 5 | 2 | 1295.6 | 9.3 | Details |
| 8 | Bojanala's Circuit Championships 4 of 4 2025 (U16) | Standard | 2025-11-01 | 2025-11-01 | Bojanala Platina (NBR) | 5 | 1196.7 | 5 | 1 | 1065.5 | -13.6 | Details |
| 9 | Bojanala's Kings & Queens 2025 (Blitz) | Blitz | 2025-10-25 | 2025-10-25 | Bojanala Platina (NBR) | 9 | 1200 | 8 | 2 | 1213 | 0.4 | Details |
| 10 | Bojanala's Battle Of Mount Cambridge 2025 (Knights) | Standard | 2025-10-11 | 2025-10-11 | Bojanala Platina (NBR) | 5 | 1200 | 4 | 0 | 936.7 | -20.7 | Details |
| 11 | Bojanala's Waterkloof - The Superior One 2025 (Knights) | Standard | 2025-03-15 | 2025-03-15 | Bojanala Platina (NBR) | 5 | 1200 | 5 | 2.5 | 1286.3 | 7.6 | Details |
| 12 | Bojanala Circuit Championships 1 of 4 2025 (U16) | Standard | 2025-03-01 | 2025-03-01 | Bojanala Platina (NBR) | 5 | 1200 | 4 | 1 | 1092.4 | -8.5 | Details |
| 13 | Bojanala Wildcard 2025 (Development) | Standard | 2025-01-25 | 2025-01-25 | Bojanala Platina (NBR) | 5 | 1200 | 5 | 2.5 | 1200 | -0.7 | 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 | 18 |
| Wins | 2 |
| Draws | 1 |
| Losses | 15 |
| White | 10 |
| Black | 8 |
| White wins | 1 |
| Black wins | 1 |
| Score | 2.5 |
| Percent | 13.9 |
| Dp | -306.9 |
| AOR | 1300.4 |
| Performance | 993.4 |
Game statistics (History)
| Games | 64 |
| Wins | 13 |
| Draws | 3 |
| Losses | 48 |
| White | 37 |
| Black | 27 |
| White wins | 8 |
| Black wins | 5 |
| Score | 14.5 |
| Percent | 22.7 |
| Dp | -232.4 |
| AOR | 1318.4 |
| Performance | 1086 |
Rankings (Main)
| National | |
| Overall | 19115 |
| Gender | 5005 |
| Age group | 3565 |
| Gender/Age | 998 |
| Provincial | |
| Overall | 1173 |
| Gender | 283 |
| Age group | 190 |
| Gender/Age | 46 |
| Regional | |
| Overall | 696 |
| Gender | 165 |
| Age group | 99 |
| Gender/Age | 25 |
Rankings (Standard)
| National | |
| Overall | 14351 |
| Gender | 3872 |
| Age group | 2589 |
| Gender/Age | 734 |
| Provincial | |
| Overall | 986 |
| Gender | 231 |
| Age group | 167 |
| Gender/Age | 37 |
| Regional | |
| Overall | 533 |
| Gender | 120 |
| Age group | 81 |
| Gender/Age | 18 |
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 | 18 |
| Score | 2.5 |
| Percent | 13.9 |
| Aor | 1300.4 |
| Dp | -306.9 |
| Prat | 993.4 |
Performance (12 months)
| Games | 50 |
| Score | 8.5 |
| Percent | 17 |
| Aor | 1334.5 |
| Dp | -280.5 |
| Prat | 1054 |
Performance (History)
| Games | 64 |
| Score | 14.5 |
| Percent | 22.7 |
| Aor | 1318.4 |
| Dp | -232.4 |
| Prat | 1086 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Jansen Van Vuuren, M (Mari) | 3 | 2 | 1 | Bojanala's Circuit Championships 4 of 4 2025 (U16) | Robday Chess Tournament 2026 (U16) | Details |
| Overall | 2 | Vercuiel, E (Estienne) | 2 | 0 | 2 | Bojanala's Kings & Queens 2025 (Blitz) | Bojanala's Merry ChessMas 2025 (Knights) | Details |
| Overall | 3 | Monare, O (Oratilwe) | 2 | 0 | 2 | South African Junior Closed Chess Championship 2026 (U16 Girls) | Robday Chess Tournament 2026 (U16) | Details |
| Overall | 4 | Weidemann, Z (Zeany) | 2 | 1 | 1 | Bojanala Wildcard 2025 (Development) | Bojanala's Merry ChessMas 2025 (Knights) | Details |
| Overall | 5 | Terblanche, J (Johann) | 2 | 2 | 0 | Bojanala Circuit Championships 1 of 4 2025 (U16) | Bojanala's Kings & Queens 2025 (Blitz) | Details |
| Standard | 1 | Jansen Van Vuuren, M (Mari) | 2 | 2 | 0 | Bojanala's Circuit Championships 4 of 4 2025 (U16) | Bojanala's Merry ChessMas 2025 (Knights) | Details |
| Standard | 2 | Weidemann, Z (Zeany) | 2 | 1 | 1 | Bojanala Wildcard 2025 (Development) | Bojanala's Merry ChessMas 2025 (Knights) | Details |
| Standard | 3 | Segalo, O (Ogone) | 2 | 1 | 1 | Bojanala's Battle Of Mount Cambridge 2025 (Knights) | South African Junior Closed Chess Championship 2026 (U16 Girls) | Details |
| Standard | 4 | Terblanche, B (Bernard) | 2 | 2 | 0 | Bojanala's Battle Of Mount Cambridge 2025 (Knights) | Bojanala's Merry ChessMas 2025 (Knights) | Details |