PLAYER PAGE
Personal
Petersen, J (Joshua)
Chess SA id
1090324714FIDE id
?Date of birth
2009-05-09 (U18)Gender
MaleRegion
Cape Town (WCT)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-02Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1232.4 | 1225.8 | 1200 | 1200 |
| Raw rating | 1232.4 | 1225.8 | 1200 | 1200 |
| Weighted rating | 1205.1 | 1204 | 1200 | 1200 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 732.4 | 725.8 | 700 | 700 |
| K-factor | 36 | 36 | 40 | 40 |
| Min/Max rating change allowed | 158.3 | 159.8 | 165.8 | 165.8 |
| Highest rating | 1232.42025-09-01 | 1225.82025-09-01 | 1199.92025-08-05 | 1199.92025-08-05 |
| Highest raw rating | 1232.42025-09-01 | 1225.82025-09-01 | 1199.92025-08-05 | 1199.92025-08-05 |
| Highest weighted rating | 1202.62025-09-01 | 1202.12025-09-01 | 1199.92025-08-05 | 1199.92025-08-05 |
| 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 | 1232.4 | 1225.8 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1232.4 | 1225.8 | 1200 | 1200 |
| Raw rating | 1232.4 | 1225.8 | 1200 | 1200 |
| Weighted rating | 1205.1 | 1204 | 1200 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 40 | 40 |
| Floor | 732.4 | 725.8 | 700 | 700 |
| Max/Min rating change allowed | 158.3 | 159.8 | 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 | 1232.4 | 1225.8 | 1200 | 1200 |
| New weighted rating | 1207.4 | 1205.9 | 1200 | 1200 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1232.4 | 1225.8 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1232.4 | 1225.8 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 732.4 | 725.8 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 4 | 4 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 4 | 4 | 0 | 0 |
| Games since | |||||||||||||||||
| Main4 | Standard4 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U18 | ||||||||||||||||
| Region | Cape Town (WCT) | ||||||||||||||||
| Province | Western Cape (WC) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 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 | 4 | 1.5 | 37.5 | -106.2 | 1516.8 | 1410.6 |
| Standard | 4 | 1.5 | 37.5 | -106.2 | 1516.8 | 1410.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 4 | 1.5 | 37.5 | -106.2 | 1516.8 | 1410.6 |
| Standard | 4 | 1.5 | 37.5 | -106.2 | 1516.8 | 1410.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1232.4 | 1225.8 | 1200 | 1200 |
| 2025-09-01 | 1232.4 | 1225.8 | 1200 | 1200 |
| 2025-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-06-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-05-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-04-01 | 1200 | 1200 | 1200 | 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 | Cape Town Metro North Top Schools 2025 (U19) | 2025-08-01 | 2025-08-02 | Standard | Cape Town (WCT) | 5 | 4 | 1.5 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Cape Town Metro North Top Schools 2025 (U19) | 2025-08-01 | 2025-08-02 | Standard | Cape Town (WCT) | 5 | 4 | 1.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentCape Town Metro North Top Schools 2025 | TournamentCape Town Metro North Top Schools 2025 | ||||||
| date2025-08-02 | rnd4 | typeStandard | result0.5 | date2025-08-02 | rnd5 | typeStandard | result1 | ||
| OpponentWebster, M (Matthew) | OpponentMupereki, L (Leeroy) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentCape Town Metro North Top Schools 2025 | TournamentCape Town Metro North Top Schools 2025 | ||||||
| date2025-08-02 | rnd4 | typeStandard | result0.5 | date2025-08-02 | rnd5 | typeStandard | result1 | ||
| OpponentWebster, M (Matthew) | OpponentMupereki, L (Leeroy) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentCape Town Metro North Top Schools 2025 | TournamentCape Town Metro North Top Schools 2025 | ||||||
| date2025-08-02 | rnd5 | typeStandard | result1 | date2025-08-02 | rnd5 | typeStandard | result1 | ||
| OpponentMupereki, L (Leeroy) | OpponentMupereki, L (Leeroy) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentCape Town Metro North Top Schools 2025 | TournamentCape Town Metro North Top Schools 2025 | ||||||
| date2025-08-02 | rnd5 | typeStandard | result1 | date2025-08-02 | rnd5 | typeStandard | result1 | ||
| OpponentMupereki, L (Leeroy) | OpponentMupereki, L (Leeroy) | ||||||||
| # | 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 | Webster ,M (Matthew) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1574.2 | 1574.2 | 1551.2 | 1574.2 | 0 | 0 | 0 | 0 | ||||||
| 2 | Mupereki ,L (Leeroy) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1375.4 | 1800.4 | 1200.5 | 1800.4 | 0 | 0 | 0 | 0 | ||||||
| 3 | Vermaak ,B (Benjamin) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1513 | 1088 | 1446.2 | 1088 | 0 | 0 | 0 | 0 | ||||||
| 4 | Mackinna ,C (Cashlin) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1604.7 | 1179.7 | 1586.6 | 1179.7 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|