PLAYER PAGE
Personal
Joubert, J (Jan)
Chess SA id
1090303597FIDE id
?Date of birth
2009-07-09 (U18)Gender
MaleRegion
Sedibeng (GSV)Citizen
RSATitles
Chess SA registered
NoLast active game
2024-08-12Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1274.7 | 1289.4 | 1200 | 1200 |
| Raw rating | 1274.7 | 1289.4 | 1200 | 1200 |
| Weighted rating | 1265.2 | 1278.1 | 1200 | 1200 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 774.7 | 789.4 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 149.1 | 146 | 165.8 | 165.8 |
| Highest rating | 1500.32024-08-01 | 1496.92024-08-01 | 12002024-06-01 | 12002024-06-01 |
| Highest raw rating | 1274.72024-09-01 | 1289.42024-09-01 | 12002024-06-01 | 12002024-06-01 |
| Highest weighted rating | 1274.72024-10-01 | 1289.42024-10-01 | 12002024-06-01 | 12002024-06-01 |
| Highest weighted performance | 1500.32024-08-01 | 1496.92024-08-01 | 12002024-06-01 | 12002024-06-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1274.7 | 1289.4 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1274.7 | 1289.4 | 1200 | 1200 |
| Raw rating | 1274.7 | 1289.4 | 1200 | 1200 |
| Weighted rating | 1265.2 | 1278.1 | 1200 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 774.7 | 789.4 | 700 | 700 |
| Max/Min rating change allowed | 149.1 | 146 | 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 | 1274.7 | 1289.4 | 1200 | 1200 |
| New weighted rating | 1267.2 | 1280.5 | 1200 | 1200 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1274.7 | 1289.4 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1274.7 | 1289.4 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 774.7 | 789.4 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 9 | 9 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 9 | 9 | 0 | 0 |
| Games since | |||||||||||||||||
| Main9 | Standard9 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U18 | ||||||||||||||||
| Region | Sedibeng (GSV) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| 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 | 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 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 9 | 7 | 77.78 | 236.1 | 1208.7 | 1444.8 |
| Standard | 9 | 7 | 77.78 | 236.1 | 1208.7 | 1444.8 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-09-30 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-09-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-08-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-07-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-06-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-05-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-04-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-03-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-02-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2025-01-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2024-12-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2024-11-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2024-10-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2024-09-01 | 1274.7 | 1289.4 | 1200 | 1200 |
| 2024-08-01 | 1221.2 | 1226 | 1200 | 1200 |
| 2024-07-01 | 1221.2 | 1226 | 1200 | 1200 |
| 2024-09-01 | 1221.2 | 1226 | 1200 | 1200 |
| 2024-05-01 | 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 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sedibeng West District Schools Chess Team's Championships 2024 (U19) | 2024-08-12 | 2024-08-12 | Standard | Sedibeng (GSV) | 5 | 4 | 4 | Yes | Analysis |
| 2 | Sedibeng Chess Open 11 May 2024 (U15) | 2024-05-11 | 2024-05-11 | Standard | Sedibeng (GSV) | 5 | 5 | 3 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng West District Schools Chess Team's Championships 2024 | ||||||
| date2024-05-11 | rnd5 | typeStandard | result1 | date2024-08-12 | rnd4 | typeStandard | result1 | ||
| OpponentNtshangase, S (Sifiso) | OpponentKhumalo, I (Inganathi Bridget) | ||||||||
| 2 | 2 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng Chess Open 11 May 2024 | ||||||
| date2024-05-11 | rnd2 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentMaphike, L (Lesedi) | OpponentMalik, G (Goddwill) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng West District Schools Chess Team's Championships 2024 | ||||||
| date2024-05-11 | rnd5 | typeStandard | result1 | date2024-08-12 | rnd4 | typeStandard | result1 | ||
| OpponentNtshangase, S (Sifiso) | OpponentKhumalo, I (Inganathi Bridget) | ||||||||
| 2 | 2 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng Chess Open 11 May 2024 | ||||||
| date2024-05-11 | rnd2 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentMaphike, L (Lesedi) | OpponentMalik, G (Goddwill) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng West District Schools Chess Team's Championships 2024 | ||||||
| date2024-05-11 | rnd5 | typeStandard | result1 | date2024-08-12 | rnd4 | typeStandard | result1 | ||
| OpponentNtshangase, S (Sifiso) | OpponentKhumalo, I (Inganathi Bridget) | ||||||||
| 2 | 2 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng Chess Open 11 May 2024 | ||||||
| date2024-05-11 | rnd2 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentMaphike, L (Lesedi) | OpponentMalik, G (Goddwill) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng West District Schools Chess Team's Championships 2024 | ||||||
| date2024-05-11 | rnd5 | typeStandard | result1 | date2024-08-12 | rnd4 | typeStandard | result1 | ||
| OpponentNtshangase, S (Sifiso) | OpponentKhumalo, I (Inganathi Bridget) | ||||||||
| 2 | 2 | TournamentSedibeng Chess Open 11 May 2024 | TournamentSedibeng Chess Open 11 May 2024 | ||||||
| date2024-05-11 | rnd2 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentMaphike, L (Lesedi) | OpponentMalik, G (Goddwill) | ||||||||
| # | 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 | Maphike ,L (Lesedi) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 2 | Nhlapo ,S (Siyabonga) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 3 | Wessels ,B (Bianca) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1180.7 | 1605.7 | 1176 | 1605.7 | 0 | 0 | 0 | 0 | ||||||
| 4 | Nkitsing ,L (Lehakoe) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 5 | Khumalo ,I (Inganathi Bridget) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1136.8 | 1561.8 | 1120.1 | 1561.8 | 0 | 0 | 0 | 0 | ||||||
| 6 | Mabuse ,DD (Dikgabane Diatile) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1392.8 | 967.8 | 1403.9 | 967.8 | 0 | 0 | 0 | 0 | ||||||
| 7 | Ntshangase ,S (Sifiso) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1213.4 | 1638.4 | 1215.1 | 1638.4 | 0 | 0 | 0 | 0 | ||||||
| 8 | Malik ,G (Goddwill) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1154.8 | 1579.8 | 1143.6 | 1579.8 | 0 | 0 | 0 | 0 | ||||||
| 9 | Muller ,L (Leighton) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|

