PLAYER PAGE
Personal
van der Berg, C (Callum)
Chess SA id
1160318974FIDE id
?Date of birth
2016-04-18 (U10)Gender
MaleRegion
King Cetshwayo (KUR)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-05-17Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| Raw rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| Weighted rating | 1207.4 | 1207.8 | 1199.7 | 1200 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 720.4 | 721.2 | 699.9 | 700 |
| K-factor | 36 | 36 | 40 | 36 |
| Min/Max rating change allowed | 161.1 | 160.9 | 165.9 | 165.8 |
| Highest rating | 1220.42025-06-01 | 1221.22025-06-01 | 1199.92025-03-31 | 12002025-04-01 |
| Highest raw rating | 1220.42025-06-01 | 1221.22025-06-01 | 1199.92025-03-31 | 12002025-04-01 |
| Highest weighted rating | 1204.62025-08-01 | 1204.92025-08-01 | 1199.92025-03-31 | 12002025-04-01 |
| Highest weighted performance | 01900-01-01 | 01900-01-01 | 01900-01-01 | 01900-01-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| Analysis | ||||
| Rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| Raw rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| Weighted rating | 1207.4 | 1207.8 | 1199.7 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 40 | 36 |
| Floor | 720.4 | 721.2 | 699.9 | 700 |
| Max/Min rating change allowed | 161.1 | 160.9 | 165.9 | 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 | 1220.4 | 1221.2 | 1199.7 | 1200 |
| New weighted rating | 1208.7 | 1209.1 | 1199.6 | 1200 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1220.4 | 1221.2 | 1199.7 | 1200 |
| New K-factor | 36 | 36 | 40 | 36 |
| New floor | 720.4 | 721.2 | 699.9 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 9 | 5 | 4 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 9 | 5 | 4 | 0 |
| Games since | |||||||||||||||||
| Main9 | Standard5 | Rapid4 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U10 | ||||||||||||||||
| Region | King Cetshwayo (KUR) | ||||||||||||||||
| Province | KwaZulu Natal (KZ) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U10 | -1 | -1 | -1 | ||||||||||||||
| U10 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U10 | -1 | -1 | -1 | ||||||||||||||
| U10 Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U10 | -1 | -1 | -1 | ||||||||||||||
| U10 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U10 | -1 | -1 | -1 | ||||||||||||||
| U10 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 | 9 | 4 | 44.44 | -47.2 | 1212.4 | 1165.2 |
| Standard | 5 | 3 | 60 | 85 | 1228 | 1313 |
| Rapid | 4 | 1 | 25 | -212.5 | 1193 | 980.5 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 9 | 4 | 44.44 | -47.2 | 1212.4 | 1165.2 |
| Standard | 5 | 3 | 60 | 85 | 1228 | 1313 |
| Rapid | 4 | 1 | 25 | -212.5 | 1193 | 980.5 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1220.4 | 1221.2 | 1199.7 | 1200 |
| 2025-09-01 | 1220.4 | 1221.2 | 1199.7 | 1200 |
| 2025-08-01 | 1220.4 | 1221.2 | 1199.7 | 1200 |
| 2025-07-01 | 1220.4 | 1221.2 | 1199.7 | 1200 |
| 2025-06-01 | 1220.4 | 1221.2 | 1199.7 | 1200 |
| 2025-05-01 | 1199.8 | 1200 | 1199.5 | 1200 |
| 2025-04-01 | 1198.4 | 1200 | 1196.7 | 1200 |
| 2025-03-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-02-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-01-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-12-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-10-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-09-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-06-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-04-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-03-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-02-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-01-01 | 1200 | 1200 | 1200 | 1200 |
| 2023-12-01 | 1200 | 1200 | 1200 | 1200 |
| 2023-11-01 | 1200 | 1200 | 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 | 2025 Grantleigh Curro Chess Inter-House (Grade 3 Boys) | 2025-07-01 | 2025-07-01 | Rapid | King Cetshwayo (KUR) | 5 | 0 | 0 | No | Analysis |
| 2 | 2025 King Cetshwayo Winter Open (U10) | 2025-05-17 | 2025-05-17 | Standard | King Cetshwayo (KUR) | 5 | 5 | 3 | Yes | Analysis |
| 3 | Grantleigh Chess Inter-House 2025 (Grade 3 Boys) | 2025-03-27 | 2025-03-27 | Rapid | King Cetshwayo (KUR) | 5 | 4 | 1 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Grantleigh Curro Chess Inter-House (Grade 3 Boys) | 2025-07-01 | 2025-07-01 | Rapid | King Cetshwayo (KUR) | 5 | 0 | 0 | No | Analysis |
| 2 | 2025 King Cetshwayo Winter Open (U10) | 2025-05-17 | 2025-05-17 | Standard | King Cetshwayo (KUR) | 5 | 5 | 3 | Yes | Analysis |
| 3 | Grantleigh Chess Inter-House 2025 (Grade 3 Boys) | 2025-03-27 | 2025-03-27 | Rapid | King Cetshwayo (KUR) | 5 | 4 | 1 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd2 | typeStandard | result1 | ||
| OpponentMoonsamy, A (Arin) | OpponentMatsa, T (Tendai) | ||||||||
| 2 | 1 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd5 | typeStandard | result1 | date2025-05-17 | rnd5 | typeStandard | result1 | ||
| OpponentChoco, Z (Zanothando) | OpponentChoco, Z (Zanothando) | ||||||||
| 3 | 1 | TournamentGrantleigh Chess Inter-House 2025 | TournamentGrantleigh Chess Inter-House 2025 | ||||||
| date2025-03-27 | rnd1 | typeRapid | result1 | date2025-03-27 | rnd1 | typeRapid | result1 | ||
| OpponentHancock, M (Max) | OpponentHancock, M (Max) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd2 | typeStandard | result1 | ||
| OpponentMoonsamy, A (Arin) | OpponentMatsa, T (Tendai) | ||||||||
| 2 | 1 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd5 | typeStandard | result1 | date2025-05-17 | rnd5 | typeStandard | result1 | ||
| OpponentChoco, Z (Zanothando) | OpponentChoco, Z (Zanothando) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentGrantleigh Chess Inter-House 2025 | TournamentGrantleigh Chess Inter-House 2025 | ||||||
| date2025-03-27 | rnd1 | typeRapid | result1 | date2025-03-27 | rnd1 | typeRapid | result1 | ||
| OpponentHancock, M (Max) | OpponentHancock, M (Max) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd2 | typeStandard | result1 | ||
| OpponentMoonsamy, A (Arin) | OpponentMatsa, T (Tendai) | ||||||||
| 2 | 1 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd5 | typeStandard | result1 | date2025-05-17 | rnd5 | typeStandard | result1 | ||
| OpponentChoco, Z (Zanothando) | OpponentChoco, Z (Zanothando) | ||||||||
| 3 | 1 | TournamentGrantleigh Chess Inter-House 2025 | TournamentGrantleigh Chess Inter-House 2025 | ||||||
| date2025-03-27 | rnd1 | typeRapid | result1 | date2025-03-27 | rnd1 | typeRapid | result1 | ||
| OpponentHancock, M (Max) | OpponentHancock, M (Max) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd2 | typeStandard | result1 | ||
| OpponentMoonsamy, A (Arin) | OpponentMatsa, T (Tendai) | ||||||||
| 2 | 1 | Tournament2025 King Cetshwayo Winter Open | Tournament2025 King Cetshwayo Winter Open | ||||||
| date2025-05-17 | rnd5 | typeStandard | result1 | date2025-05-17 | rnd5 | typeStandard | result1 | ||
| OpponentChoco, Z (Zanothando) | OpponentChoco, Z (Zanothando) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentGrantleigh Chess Inter-House 2025 | TournamentGrantleigh Chess Inter-House 2025 | ||||||
| date2025-03-27 | rnd1 | typeRapid | result1 | date2025-03-27 | rnd1 | typeRapid | result1 | ||
| OpponentHancock, M (Max) | OpponentHancock, M (Max) | ||||||||
| # | 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 | Moonsamy ,A (Arin) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 2 | Matsa ,T (Tendai) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1218.1 | 1643.1 | 1200 | 1643.1 | 0 | 0 | 0 | 0 | ||||||
| 3 | Choco ,Z (Zanothando) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | Moonsamy ,A (Aaron) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1321.9 | 896.9 | 1312.1 | 896.9 | 0 | 0 | 0 | 0 | ||||||
| 5 | Yenkiah ,J (Josiah) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 775 | 1200.5 | 775 | 0 | 0 | 0 | 0 | ||||||
| 6 | Ncube ,A (Ayabonga) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1200 | 775 | 0 | 0 | 1200 | 775 | 0 | 0 | ||||||
| 7 | Biyela ,Z (Zululami) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1183.8 | 758.8 | 0 | 0 | 1184.9 | 758.8 | 0 | 0 | ||||||
| 8 | Christians ,J (Joshua) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1188.4 | 763.4 | 0 | 0 | 1200 | 763.4 | 0 | 0 | ||||||
| 9 | Hancock ,M (Max) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1200 | 1625 | 0 | 0 | 1200 | 1625 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|