PLAYER PAGE
David Christian Claassen
1110156834Pixley-ka-Seme (NCP)Personal
Main rating
| Rating | 1274 |
| K-factor | 36 |
| Floor | 736.1 |
| Highest | 1274 (2026-02-28) |
| Min/Max +/- allowed | 149 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1275 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1274 |
| K-factor | 36 |
| Floor | 736.1 |
| Highest | 1274 (2026-02-28) |
| Min/Max +/- allowed | 149.2 |
Standard rating
| Rating | 1273.7 |
| K-factor | 36 |
| Floor | 742 |
| Highest | 1273.7 (2026-02-28) |
| Min/Max +/- allowed | 149.3 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1275 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1273.7 |
| K-factor | 36 |
| Floor | 742 |
| Highest | 1273.7 (2026-02-28) |
| Min/Max +/- allowed | 149.3 |
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 | Grey College Team Championship 2026 (B) | Standard | 2026-02-20 | 2026-02-21 | Mangaung (FMB) | 5 | 1174.5 | 5 | 2.5 | 1206.6 | 0 | Details |
| 2 | De Aar Open Chess Tournament 2026 (C) | Standard | 2026-01-31 | 2026-01-31 | Pixley-ka-Seme (NCP) | 5 | 1174.5 | 5 | 3 | 1347.3 | 0 | Details |
| 3 | Hopetown Chess Tournament 2026 (U16+U18) | Standard | 2026-02-07 | 2026-02-07 | Pixley-ka-Seme (NCP) | 5 | 1174.5 | 5 | 3.5 | 1485.8 | 0 | Details |
| 4 | 2025 Mzansi Inter Provincial Team Championships (U16 Open) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1191.1 | 6 | 0 | 977 | 0 | Details |
| 5 | Northern Cape Closed 202 (U16 Open) | Standard | 2025-08-22 | 2025-08-23 | ZF Mgcawu (NZF) | 5 | 1177.5 | 4 | 2 | 1372 | 0 | Details |
| 6 | De Aar Primary School 2025 (U14) | Standard | 2025-08-16 | 2025-08-16 | Pixley-ka-Seme (NCP) | 5 | 1177.5 | 5 | 2 | 1128.1 | 0 | Details |
| 7 | Hopetown Schools Open 2025 (U15) | Standard | 2025-08-01 | 2025-08-01 | Pixley-ka-Seme (NCP) | 5 | 1177.5 | 4 | 1 | 1093.8 | 0 | Details |
| 8 | 2025 HSDA School Chess Tournament (U15) | Standard | 2025-02-08 | 2025-02-08 | Pixley-ka-Seme (NCP) | 5 | 1181.7 | 5 | 2 | 1165.8 | 0 | Details |
| 9 | 2024 Hopetown Schools Chess Tournament (U13) | Standard | 2024-10-12 | 2024-10-12 | Pixley-ka-Seme (NCP) | 5 | 1145.4 | 5 | 3 | 1356.8 | 0 | Details |
| 10 | 2024 NC Closed Chess Championships (U14 Open) | Standard | 2024-08-23 | 2024-08-25 | Frances Baard (NCF) | 5 | 1157.9 | 5 | 2 | 1102 | 0 | Details |
| 11 | 2024 HSDA Open 3 (U13) | Standard | 2024-07-27 | 2024-07-27 | Pixley-ka-Seme (NCP) | 5 | 1172.4 | 5 | 2 | 1099.8 | 0 | Details |
| 12 | HSDA School Open 2024 (U12+U14) | Standard | 2024-01-27 | 2024-01-27 | Frances Baard (NCF) | 5 | 1157.6 | 5 | 3 | 1247 | 0 | Details |
| 13 | HSDA Chess Club School Tournament 2023 (U12+U14) | Standard | 2023-07-29 | 2023-07-29 | Pixley-ka-Seme (NCP) | 5 | 1179.1 | 4 | 1 | 1028 | 0 | Details |
| 14 | Hopetown School Chess Open Tournament 2023 (U11+U13) | Standard | 2023-05-06 | 2023-05-06 | Pixley-ka-Seme (NCP) | 5 | 1200 | 5 | 2 | 1089.9 | 0 | 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 | 15 |
| Wins | 7 |
| Draws | 4 |
| Losses | 4 |
| White | 8 |
| Black | 7 |
| White wins | 4 |
| Black wins | 3 |
| Score | 9 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1261.6 |
| Performance | 1346.6 |
Game statistics (History)
| Games | 68 |
| Wins | 27 |
| Draws | 4 |
| Losses | 37 |
| White | 36 |
| Black | 32 |
| White wins | 15 |
| Black wins | 12 |
| Score | 29 |
| Percent | 42.6 |
| Dp | -62.5 |
| AOR | 1253.4 |
| Performance | 1190.9 |
Rankings (Main)
| National | |
| Overall | 7066 |
| Gender | 5799 |
| Age group | 1241 |
| Gender/Age | 963 |
| Provincial | |
| Overall | 220 |
| Gender | 181 |
| Age group | 41 |
| Gender/Age | 30 |
| Regional | |
| Overall | 38 |
| Gender | 29 |
| Age group | 11 |
| Gender/Age | 6 |
Rankings (Standard)
| National | |
| Overall | 6238 |
| Gender | 5074 |
| Age group | 1102 |
| Gender/Age | 849 |
| Provincial | |
| Overall | 225 |
| Gender | 186 |
| Age group | 43 |
| Gender/Age | 33 |
| Regional | |
| Overall | 39 |
| Gender | 30 |
| Age group | 10 |
| Gender/Age | 6 |
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 | 15 |
| Score | 9 |
| Percent | 60 |
| Aor | 1261.6 |
| Dp | 85 |
| Prat | 1346.6 |
Performance (12 months)
| Games | 34 |
| Score | 14 |
| Percent | 41.2 |
| Aor | 1297.5 |
| Dp | -75 |
| Prat | 1222.5 |
Performance (History)
| Games | 68 |
| Score | 29 |
| Percent | 42.6 |
| Aor | 1253.4 |
| Dp | -62.5 |
| Prat | 1190.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Ngudle, CE (Caelyn Ebenezer) | 5 | 2 | 3 | Hopetown School Chess Open Tournament 2023 (U11+U13) | De Aar Open Chess Tournament 2026 (C) | Details |
| Overall | 2 | Biko, L (Lihlumile) | 5 | 2 | 3 | Hopetown School Chess Open Tournament 2023 (U11+U13) | De Aar Open Chess Tournament 2026 (C) | Details |
| Overall | 3 | April , SL (Swazi Laurian) | 4 | 2 | 2 | HSDA School Open 2024 (U12+U14) | Hopetown Chess Tournament 2026 (U16+U18) | Details |
| Overall | 4 | Claassen, JP (Joshua Peter) | 3 | 2 | 1 | Hopetown School Chess Open Tournament 2023 (U11+U13) | 2024 Hopetown Schools Chess Tournament (U13) | Details |
| Overall | 5 | Pretorius, J (Johannes) | 3 | 1 | 2 | Hopetown School Chess Open Tournament 2023 (U11+U13) | 2024 Hopetown Schools Chess Tournament (U13) | Details |
| Standard | 1 | Ngudle, CE (Caelyn Ebenezer) | 5 | 2 | 3 | Hopetown School Chess Open Tournament 2023 (U11+U13) | De Aar Open Chess Tournament 2026 (C) | Details |
| Standard | 2 | Biko, L (Lihlumile) | 5 | 2 | 3 | Hopetown School Chess Open Tournament 2023 (U11+U13) | De Aar Open Chess Tournament 2026 (C) | Details |
| Standard | 3 | April , SL (Swazi Laurian) | 4 | 2 | 2 | HSDA School Open 2024 (U12+U14) | Hopetown Chess Tournament 2026 (U16+U18) | Details |
| Standard | 4 | Claassen, JP (Joshua Peter) | 3 | 2 | 1 | Hopetown School Chess Open Tournament 2023 (U11+U13) | 2024 Hopetown Schools Chess Tournament (U13) | Details |
| Standard | 5 | Pretorius, J (Johannes) | 3 | 1 | 2 | Hopetown School Chess Open Tournament 2023 (U11+U13) | 2024 Hopetown Schools Chess Tournament (U13) | Details |