PLAYER PAGE
Personal
Claassen, D (David Christian)
Chess SA id
1110156834FIDE id
?Date of birth
2011-12-11 (U16)Gender
MaleRegion
Pixley-ka-Seme (NCP)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-23Personal details last changed
1900-01-01Junior GPX Games
23Junior GPX Points
1240.2| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1191.1 | 1190.5 | 1200 | 1200 |
| Raw rating | 1191.1 | 1190.5 | 1200 | 1200 |
| Weighted rating | 1177.8 | 1177.8 | 1200 | 1200 |
| Weighted performance | 1170.9 | 1171.3 | 0 | 0 |
| Floor | 700 | 700 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 167.9 | 168.1 | 165.8 | 165.8 |
| Highest rating | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 12002019-12-01 | 12002019-12-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 12002019-12-01 | 12002019-12-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1191.1 | 1190.5 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1191.1 | 1190.5 | 1200 | 1200 |
| Raw rating | 1191.1 | 1190.5 | 1200 | 1200 |
| Weighted rating | 1177.8 | 1177.8 | 1200 | |
| Weighted performance | 1170.9 | 1171.3 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 700 | 700 | 700 | 700 |
| Max/Min rating change allowed | 167.9 | 168.1 | 165.8 | 165.8 |
| Games | 0 | 0 | 0 | 0 |
| Score | 0 | 0 | 0 | 0 |
| Expected score | 0 | 0 | 0 | 0 |
| Score-Expected | 0 | 0 | 0 | 0 |
| Temp raw +/- | 0 | 0 | 0 | 0 |
| Final raw +/- | 0 | 0 | 0 | 0 |
| New raw rating | 1191.1 | 1190.5 | 1200 | 1200 |
| New weighted rating | 1179.2 | 1179.3 | 1200 | 1200 |
| New weighted performance | 1163.8 | 1164.2 | 0 | 0 |
| Temp new rating | 1191.1 | 1190.5 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1191.1 | 1190.5 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 700 | 700 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 18 | 18 | 0 | 0 | |
| 20 | 20 | 0 | 0 | |
| 9 | 9 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 47 | 47 | 0 | 0 |
| Games since | |||||||||||||||||
| Main38 | Standard38 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U16 | ||||||||||||||||
| Region | Pixley-ka-Seme (NCP) | ||||||||||||||||
| Province | Northern Cape (NC) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 4146 | 146 | 33 | ||||||||||||||
| Male | 3087 | 110 | 23 | ||||||||||||||
| U16 | 674 | 34 | 9 | ||||||||||||||
| U16 Male | 473 | 25 | 4 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Male | -1 | -1 | -1 | ||||||||||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 0 | 0 | 0 | 0 | 0 | 0 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 18 | 7 | 38.89 | -94.4 | 1279.6 | 1185.2 |
| Standard | 18 | 7 | 38.89 | -94.4 | 1279.6 | 1185.2 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 47 | 20 | 42.55 | -63.3 | 1231.9 | 1168.6 |
| Standard | 47 | 20 | 42.55 | -63.3 | 1231.9 | 1168.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1191.1 | 1190.5 | 1200 | 1200 |
| 2025-09-30 | 1191.1 | 1190.5 | 1200 | 1200 |
| 2025-09-01 | 1191.1 | 1190.5 | 1200 | 1200 |
| 2025-08-01 | 1177.5 | 1179.5 | 1200 | 1200 |
| 2025-07-01 | 1177.5 | 1179.5 | 1200 | 1200 |
| 2025-06-01 | 1177.5 | 1179.5 | 1200 | 1200 |
| 2025-05-01 | 1177.5 | 1179.5 | 1200 | 1200 |
| 2025-04-01 | 1177.5 | 1179.5 | 1200 | 1200 |
| 2025-03-01 | 1177.5 | 1179.5 | 1200 | 1200 |
| 2025-02-01 | 1181.7 | 1184.9 | 1200 | 1200 |
| 2025-01-01 | 1181.7 | 1184.9 | 1200 | 1200 |
| 2024-12-01 | 1181.7 | 1184.9 | 1200 | 1200 |
| 2024-11-01 | 1181.7 | 1184.9 | 1200 | 1200 |
| 2024-10-01 | 1145.4 | 1139.9 | 1200 | 1200 |
| 2024-09-01 | 1145.4 | 1139.9 | 1200 | 1200 |
| 2024-08-01 | 1157.9 | 1152.1 | 1200 | 1200 |
| 2024-07-01 | 1172.4 | 1167.6 | 1200 | 1200 |
| 2024-09-01 | 1172.4 | 1167.6 | 1200 | 1200 |
| 2024-05-01 | 1172.4 | 1167.6 | 1200 | 1200 |
| 2024-04-01 | 1172.4 | 1167.6 | 1200 | 1200 |
| 2024-03-01 | 1172.4 | 1167.6 | 1200 | 1200 |
| 2024-02-01 | 1172.4 | 1167.6 | 1200 | 1200 |
| 2024-01-01 | 1157.6 | 1150.7 | 1200 | 1200 |
| 2023-12-01 | 1157.6 | 1150.7 | 1200 | 1200 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Northern Cape Closed 202 (U16 Open) | 2025-08-22 | 2025-08-23 | Standard | ZF Mgcawu (NZF) | 5 | 4 | 2 | Yes | Analysis |
| 2 | De Aar Primary School 2025 (U14) | 2025-08-16 | 2025-08-16 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | Hopetown Schools Open 2025 (U15) | 2025-08-01 | 2025-08-01 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 1 | Yes | Analysis |
| 4 | 2025 HSDA School Chess Tournament (U15) | 2025-02-08 | 2025-02-08 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Northern Cape Closed 202 (U16 Open) | 2025-08-22 | 2025-08-23 | Standard | ZF Mgcawu (NZF) | 5 | 4 | 2 | Yes | Analysis |
| 2 | De Aar Primary School 2025 (U14) | 2025-08-16 | 2025-08-16 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | Hopetown Schools Open 2025 (U15) | 2025-08-01 | 2025-08-01 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 1 | Yes | Analysis |
| 4 | 2025 HSDA School Chess Tournament (U15) | 2025-02-08 | 2025-02-08 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2024 Hopetown Schools Chess Tournament (U13) | 2024-10-12 | 2024-10-12 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 3 | Yes | Analysis |
| 6 | 2024 NC Closed Chess Championships (U14 Open) | 2024-08-23 | 2024-08-25 | Standard | Frances Baard (NCF) | 5 | 5 | 2 | Yes | Analysis |
| 7 | 2024 HSDA Open 3 (U13) | 2024-07-27 | 2024-07-27 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 8 | HSDA School Open 2024 (U12+U14) | 2024-01-27 | 2024-01-27 | Standard | Frances Baard (NCF) | 5 | 5 | 3 | Yes | Analysis |
| 9 | HSDA Chess Club School Tournament 2023 (U12+U14) | 2023-07-29 | 2023-07-29 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 1 | Yes | Analysis |
| 10 | Hopetown School Chess Open Tournament 2023 (U11+U13) | 2023-05-06 | 2023-05-06 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-23 | rnd4 | typeStandard | result1 | date2025-08-23 | rnd5 | typeStandard | result1 | ||
| OpponentChuma, N (Nicholus) | OpponentMatthys, A (Ayden) | ||||||||
| 2 | 2 | TournamentDe Aar Primary School 2025 | TournamentDe Aar Primary School 2025 | ||||||
| date2025-08-16 | rnd3 | typeStandard | result1 | date2025-08-16 | rnd4 | typeStandard | result1 | ||
| OpponentBiko, L (Lihlumile) | OpponentMitchell, L (Leche) | ||||||||
| 3 | 2 | Tournament2024 Hopetown Schools Chess Tournament | Tournament2024 Hopetown Schools Chess Tournament | ||||||
| date2024-10-12 | rnd3 | typeStandard | result1 | date2024-10-12 | rnd4 | typeStandard | result1 | ||
| OpponentPretorius, J (Johannes) | OpponentPotgieter, M (Martin-Juan) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-23 | rnd4 | typeStandard | result1 | date2025-08-23 | rnd5 | typeStandard | result1 | ||
| OpponentChuma, N (Nicholus) | OpponentMatthys, A (Ayden) | ||||||||
| 2 | 2 | TournamentDe Aar Primary School 2025 | TournamentDe Aar Primary School 2025 | ||||||
| date2025-08-16 | rnd3 | typeStandard | result1 | date2025-08-16 | rnd4 | typeStandard | result1 | ||
| OpponentBiko, L (Lihlumile) | OpponentMitchell, L (Leche) | ||||||||
| 3 | 2 | Tournament2024 Hopetown Schools Chess Tournament | Tournament2024 Hopetown Schools Chess Tournament | ||||||
| date2024-10-12 | rnd3 | typeStandard | result1 | date2024-10-12 | rnd4 | typeStandard | result1 | ||
| OpponentPretorius, J (Johannes) | OpponentPotgieter, M (Martin-Juan) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-23 | rnd4 | typeStandard | result1 | date2025-08-23 | rnd5 | typeStandard | result1 | ||
| OpponentChuma, N (Nicholus) | OpponentMatthys, A (Ayden) | ||||||||
| 2 | 2 | TournamentDe Aar Primary School 2025 | TournamentDe Aar Primary School 2025 | ||||||
| date2025-08-16 | rnd3 | typeStandard | result1 | date2025-08-16 | rnd4 | typeStandard | result1 | ||
| OpponentBiko, L (Lihlumile) | OpponentMitchell, L (Leche) | ||||||||
| 3 | 2 | Tournament2024 Hopetown Schools Chess Tournament | Tournament2024 Hopetown Schools Chess Tournament | ||||||
| date2024-10-12 | rnd3 | typeStandard | result1 | date2024-10-12 | rnd4 | typeStandard | result1 | ||
| OpponentPretorius, J (Johannes) | OpponentPotgieter, M (Martin-Juan) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-23 | rnd4 | typeStandard | result1 | date2025-08-23 | rnd5 | typeStandard | result1 | ||
| OpponentChuma, N (Nicholus) | OpponentMatthys, A (Ayden) | ||||||||
| 2 | 2 | TournamentDe Aar Primary School 2025 | TournamentDe Aar Primary School 2025 | ||||||
| date2025-08-16 | rnd3 | typeStandard | result1 | date2025-08-16 | rnd4 | typeStandard | result1 | ||
| OpponentBiko, L (Lihlumile) | OpponentMitchell, L (Leche) | ||||||||
| 3 | 2 | Tournament2024 Hopetown Schools Chess Tournament | Tournament2024 Hopetown Schools Chess Tournament | ||||||
| date2024-10-12 | rnd3 | typeStandard | result1 | date2024-10-12 | rnd4 | typeStandard | result1 | ||
| OpponentPretorius, J (Johannes) | OpponentPotgieter, M (Martin-Juan) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
Top 10 opponents most often played
| # | Opponent | Main | Standard | Rapid | Blitz | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | ||
| Aor | Prat | Aor | Prat | Aor | Prat | Aor | Prat | ||||||
| 1 | Biko ,L (Lihlumile) | 4 | 4 | 425 | 4 | 4 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1132.8 | 1557.8 | 1127.3 | 1557.8 | 0 | 0 | 0 | 0 | ||||||
| 2 | Pretorius ,J (Johannes) | 3 | 3 | 425 | 3 | 3 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1176 | 1601 | 1178.2 | 1601 | 0 | 0 | 0 | 0 | ||||||
| 3 | Claassen ,J (Joshua) | 3 | 1 | -141.7 | 3 | 1 | -141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1207.5 | 1065.8 | 1208.9 | 1065.8 | 0 | 0 | 0 | 0 | ||||||
| 4 | April ,SL (Swazi Laurian) | 3 | 1 | -141.7 | 3 | 1 | -141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1074.6 | 932.9 | 1072.8 | 932.9 | 0 | 0 | 0 | 0 | ||||||
| 5 | Ngudle ,CE (Caelyn Ebenezer) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1275.8 | 850.8 | 1285.4 | 850.8 | 0 | 0 | 0 | 0 | ||||||
| 6 | Mitchell ,L (Leche) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1163.6 | 1588.6 | 1158.9 | 1588.6 | 0 | 0 | 0 | 0 | ||||||
| 7 | Fischer ,A (Amike) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1374.9 | 949.9 | 1375.4 | 949.9 | 0 | 0 | 0 | 0 | ||||||
| 8 | Matthys ,A (Ayden) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1440.7 | 1440.7 | 1448.9 | 1440.7 | 0 | 0 | 0 | 0 | ||||||
| 9 | April ,CL (Cherise Lorcia) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1255.8 | 1255.8 | 1258.4 | 1255.8 | 0 | 0 | 0 | 0 | ||||||
| 10 | Potgieter ,M (Martin-Juan) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1173 | 1598 | 1174.8 | 1598 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|