PLAYER PAGE
Personal
Joubert, C (Charle Joshua)
Chess SA id
1090313364FIDE id
?Date of birth
2009-09-09 (U18)Gender
MaleRegion
Cape Winelands (WCW)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-11-01Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1194.1 | 1192.1 | 1200 | 1200 |
| Raw rating | 1185.9 | 1181.7 | 1200 | 1200 |
| Weighted rating | 1194.1 | 1192.1 | 1200 | 1200 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 700 | 700 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 169.2 | 170.2 | 165.8 | 165.8 |
| Highest rating | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 |
| Highest raw rating | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 |
| Highest weighted rating | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 |
| Highest weighted performance | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 | 12002024-11-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | -0.8 | -1 | 0 | 0 |
| New rating | 1193.4 | 1191.1 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1194.1 | 1192.1 | 1200 | 1200 |
| Raw rating | 1185.9 | 1181.7 | 1200 | 1200 |
| Weighted rating | 1194.1 | 1192.1 | 1200 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 700 | 700 | 700 | 700 |
| Max/Min rating change allowed | 169.2 | 170.2 | 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 | 1185.9 | 1181.7 | 1200 | 1200 |
| New weighted rating | 1193.4 | 1191.1 | 1200 | 1200 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1193.4 | 1191.1 | 1200 | 1200 |
| Temp new rating +/- | -0.8 | -1 | 0 | 0 |
| Final new rating +/- | -0.8 | -1 | 0 | 0 |
| New rating | 1193.4 | 1191.1 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 700 | 700 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 15 | 15 | 0 | 0 | |
| 6 | 6 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 21 | 21 | 0 | 0 |
| Games since | |||||||||||||||||
| Main21 | Standard21 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U18 | ||||||||||||||||
| Region | Cape Winelands (WCW) | ||||||||||||||||
| 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 | 15 | 4.5 | 30 | -170 | 1227.1 | 1057.1 |
| Standard | 15 | 4.5 | 30 | -170 | 1227.1 | 1057.1 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 21 | 7 | 33.33 | -141.7 | 1219.4 | 1077.8 |
| Standard | 21 | 7 | 33.33 | -141.7 | 1219.4 | 1077.8 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2026-01-01 | 1185.9 | 1181.7 | 1200 | 1200 |
| 2025-11-30 | 1185.9 | 1181.7 | 1200 | 1200 |
| 2025-11-01 | 1196.1 | 1194.6 | 1200 | 1200 |
| 2025-09-30 | 1196.1 | 1194.6 | 1200 | 1200 |
| 2025-09-01 | 1196.1 | 1194.6 | 1200 | 1200 |
| 2025-08-01 | 1196.1 | 1194.6 | 1200 | 1200 |
| 2025-07-01 | 1195.9 | 1194.4 | 1200 | 1200 |
| 2025-06-01 | 1191.8 | 1189.4 | 1200 | 1200 |
| 2025-05-01 | 1197 | 1195.8 | 1200 | 1200 |
| 2025-04-01 | 1197 | 1195.8 | 1200 | 1200 |
| 2025-03-01 | 1197 | 1195.8 | 1200 | 1200 |
| 2025-02-01 | 1196.2 | 1194.7 | 1200 | 1200 |
| 2025-01-01 | 1183.4 | 1176.8 | 1200 | 1200 |
| 2024-12-01 | 1183.4 | 1176.8 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-10-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-09-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-06-01 | 1200 | 1200 | 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 |
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 | 2025 Veltie Royal Chess Tournament | 2025-10-31 | 2025-11-01 | Standard | ZF Mgcawu (NZF) | 5 | 5 | 2 | Yes | Analysis |
| 2 | Spartan Bishops Championships Warriors 2025 (U18) | 2025-05-23 | 2025-05-25 | Standard | Frances Baard (NCF) | 5 | 5 | 1.5 | Yes | Analysis |
| 3 | 2025 ZFM Closed Chess Championship (U18) | 2025-05-09 | 2025-05-10 | Standard | ZF Mgcawu (NZF) | 5 | 5 | 1 | Yes | Analysis |
| 4 | Paarl Boys' High Chess Festival 2024 (C) | 2024-10-04 | 2024-10-05 | Standard | Cape Winelands (WCW) | 6 | 6 | 2.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentSpartan Bishops Championships Warriors 2025 | TournamentSpartan Bishops Championships Warriors 2025 | ||||||
| date2025-05-25 | rnd5 | typeStandard | result0.5 | date2025-05-25 | rnd5 | typeStandard | result0.5 | ||
| OpponentMokwena, L (Lethabo) | OpponentMokwena, L (Lethabo) | ||||||||
| 2 | 1 | TournamentSpartan Bishops Championships Warriors 2025 | TournamentSpartan Bishops Championships Warriors 2025 | ||||||
| date2025-05-24 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentCrafford, C (Christiaan) | OpponentCrafford, C (Christiaan) | ||||||||
| 3 | 1 | Tournament2025 ZFM Closed Chess Championship | Tournament2025 ZFM Closed Chess Championship | ||||||
| date2025-05-09 | rnd2 | typeStandard | result1 | date2025-05-09 | rnd2 | typeStandard | result1 | ||
| OpponentDu Plessis, M (Marlon) | OpponentDu Plessis, M (Marlon) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentSpartan Bishops Championships Warriors 2025 | TournamentSpartan Bishops Championships Warriors 2025 | ||||||
| date2025-05-25 | rnd5 | typeStandard | result0.5 | date2025-05-25 | rnd5 | typeStandard | result0.5 | ||
| OpponentMokwena, L (Lethabo) | OpponentMokwena, L (Lethabo) | ||||||||
| 2 | 1 | TournamentSpartan Bishops Championships Warriors 2025 | TournamentSpartan Bishops Championships Warriors 2025 | ||||||
| date2025-05-24 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentCrafford, C (Christiaan) | OpponentCrafford, C (Christiaan) | ||||||||
| 3 | 1 | Tournament2025 ZFM Closed Chess Championship | Tournament2025 ZFM Closed Chess Championship | ||||||
| date2025-05-09 | rnd2 | typeStandard | result1 | date2025-05-09 | rnd2 | typeStandard | result1 | ||
| OpponentDu Plessis, M (Marlon) | OpponentDu Plessis, M (Marlon) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentSpartan Bishops Championships Warriors 2025 | TournamentSpartan Bishops Championships Warriors 2025 | ||||||
| date2025-05-24 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentCrafford, C (Christiaan) | OpponentCrafford, C (Christiaan) | ||||||||
| 2 | 1 | Tournament2025 ZFM Closed Chess Championship | Tournament2025 ZFM Closed Chess Championship | ||||||
| date2025-05-09 | rnd2 | typeStandard | result1 | date2025-05-09 | rnd2 | typeStandard | result1 | ||
| OpponentDu Plessis, M (Marlon) | OpponentDu Plessis, M (Marlon) | ||||||||
| 3 | 1 | TournamentPaarl Boys' High Chess Festival 2024 | TournamentPaarl Boys' High Chess Festival 2024 | ||||||
| date2024-10-05 | rnd4 | typeStandard | result1 | date2024-10-05 | rnd4 | typeStandard | result1 | ||
| OpponentDafeti, D (Tumisang) | OpponentDafeti, D (Tumisang) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentSpartan Bishops Championships Warriors 2025 | TournamentSpartan Bishops Championships Warriors 2025 | ||||||
| date2025-05-24 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentCrafford, C (Christiaan) | OpponentCrafford, C (Christiaan) | ||||||||
| 2 | 1 | Tournament2025 ZFM Closed Chess Championship | Tournament2025 ZFM Closed Chess Championship | ||||||
| date2025-05-09 | rnd2 | typeStandard | result1 | date2025-05-09 | rnd2 | typeStandard | result1 | ||
| OpponentDu Plessis, M (Marlon) | OpponentDu Plessis, M (Marlon) | ||||||||
| 3 | 1 | TournamentPaarl Boys' High Chess Festival 2024 | TournamentPaarl Boys' High Chess Festival 2024 | ||||||
| date2024-10-05 | rnd4 | typeStandard | result1 | date2024-10-05 | rnd4 | typeStandard | result1 | ||
| OpponentDafeti, D (Tumisang) | OpponentDafeti, D (Tumisang) | ||||||||
| # | 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 | Gough ,K (Katelyn) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1137.1 | 1137.1 | 1124.7 | 1137.1 | 0 | 0 | 0 | 0 | ||||||
| 2 | Mokwena ,L (Lethabo) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1197.7 | 1197.7 | 1197.4 | 1197.7 | 0 | 0 | 0 | 0 | ||||||
| 3 | Grundlingh ,N (Nathan) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | Engelbrecht ,K (Karo) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1193.5 | 768.5 | 1192.6 | 768.5 | 0 | 0 | 0 | 0 | ||||||
| 5 | Maposa ,A (Akhanani) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1185.2 | 760.2 | 1178.2 | 760.2 | 0 | 0 | 0 | 0 | ||||||
| 6 | Crafford ,C (Christiaan) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1196.2 | 1621.2 | 1195.4 | 1621.2 | 0 | 0 | 0 | 0 | ||||||
| 7 | Daries ,R (Rio) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1144.9 | 1144.9 | 1134 | 1144.9 | 0 | 0 | 0 | 0 | ||||||
| 8 | Fredericks ,J (Joshua) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1220.7 | 795.7 | 1169.6 | 795.7 | 0 | 0 | 0 | 0 | ||||||
| 9 | Hollenbach ,W (Wian) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1436.4 | 1011.4 | 1440.4 | 1011.4 | 0 | 0 | 0 | 0 | ||||||
| 10 | De Beer ,B (Ben) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1336.7 | 911.7 | 1312.2 | 911.7 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|

