PLAYER PAGE
Personal
Groenewald, J (Jonathan)
Chess SA id
1150322016FIDE id
?Date of birth
2015-06-17 (U12)Gender
MaleRegion
Sedibeng (GSV)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-05-31Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1199.9 | 1200 | 1200 | 1199.6 |
| Raw rating | 1199.9 | 1200 | 1200 | 1199.5 |
| Weighted rating | 1199.9 | 1200 | 1200 | 1199.6 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 699.9 | 700 | 700 | 699.9 |
| K-factor | 40 | 36 | 36 | 40 |
| Min/Max rating change allowed | 165.8 | 165.8 | 165.8 | 165.9 |
| Highest rating | 1199.92025-06-01 | 12002025-07-01 | 12002025-07-01 | 1199.92025-06-01 |
| Highest raw rating | 1199.92025-06-01 | 12002025-07-01 | 12002025-07-01 | 1199.92025-06-01 |
| Highest weighted rating | 1199.92025-06-01 | 12002025-07-01 | 12002025-07-01 | 1199.92025-06-01 |
| 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 | 1199.9 | 1200 | 1200 | 1199.6 |
| Analysis | ||||
| Rating | 1199.9 | 1200 | 1200 | 1199.6 |
| Raw rating | 1199.9 | 1200 | 1200 | 1199.5 |
| Weighted rating | 1199.9 | 1200 | 1200 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 40 | 36 | 36 | 40 |
| Floor | 699.9 | 700 | 700 | 699.9 |
| Max/Min rating change allowed | 165.8 | 165.8 | 165.8 | 165.9 |
| 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 | 1199.9 | 1200 | 1200 | 1199.5 |
| New weighted rating | 1199.9 | 1200 | 1200 | 1199.6 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1199.9 | 1200 | 1200 | 1199.6 |
| Temp new rating +/- | -0 | 0 | 0 | -0 |
| Final new rating +/- | -0 | 0 | 0 | -0 |
| New rating | 1199.9 | 1200 | 1200 | 1199.6 |
| New K-factor | 40 | 36 | 36 | 40 |
| New floor | 699.9 | 700 | 700 | 699.9 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 6 | 0 | 0 | 6 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 6 | 0 | 0 | 6 |
| Games since | |||||||||||||||||
| Main6 | Standard0 | Rapid0 | Blitz6 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U12 | ||||||||||||||||
| Region | Sedibeng (GSV) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 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 | 6 | 2 | 33.33 | -141.7 | 1208.3 | 1066.6 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 6 | 2 | 33.33 | -141.7 | 1208.3 | 1066.6 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 6 | 2 | 33.33 | -141.7 | 1208.3 | 1066.6 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 6 | 2 | 33.33 | -141.7 | 1208.3 | 1066.6 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1199.9 | 1200 | 1200 | 1199.5 |
| 2025-09-30 | 1199.9 | 1200 | 1200 | 1199.5 |
| 2025-09-01 | 1199.9 | 1200 | 1200 | 1199.5 |
| 2025-08-01 | 1199.9 | 1200 | 1200 | 1199.5 |
| 2025-07-01 | 1199.3 | 1200 | 1200 | 1196.8 |
| 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 |
| 2024-09-01 | 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 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Laerskool Eligwa Open 20 Sept 2025 (E) | 2025-09-20 | 2025-09-20 | Standard | Sedibeng (GSV) | 5 | 0 | 0 | No | Analysis |
| 2 | Vaal Chess Club Blitz Open 31 May 2025 (B) | 2025-05-31 | 2025-05-31 | Blitz | Sedibeng (GSV) | 7 | 6 | 2 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Laerskool Eligwa Open 20 Sept 2025 (E) | 2025-09-20 | 2025-09-20 | Standard | Sedibeng (GSV) | 5 | 0 | 0 | No | Analysis |
| 2 | Vaal Chess Club Blitz Open 31 May 2025 (B) | 2025-05-31 | 2025-05-31 | Blitz | Sedibeng (GSV) | 7 | 6 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentVaal Chess Club Blitz Open 31 May 2025 | TournamentVaal Chess Club Blitz Open 31 May 2025 | ||||||
| date2025-05-31 | rnd5 | typeBlitz | result1 | date2025-05-31 | rnd6 | typeBlitz | result1 | ||
| OpponentNagel, A (Abigail) | OpponentMohokare, R (Rorisang) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentVaal Chess Club Blitz Open 31 May 2025 | TournamentVaal Chess Club Blitz Open 31 May 2025 | ||||||
| date2025-05-31 | rnd5 | typeBlitz | result1 | date2025-05-31 | rnd6 | typeBlitz | result1 | ||
| OpponentNagel, A (Abigail) | OpponentMohokare, R (Rorisang) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentVaal Chess Club Blitz Open 31 May 2025 | TournamentVaal Chess Club Blitz Open 31 May 2025 | ||||||
| date2025-05-31 | rnd5 | typeBlitz | result1 | date2025-05-31 | rnd6 | typeBlitz | result1 | ||
| OpponentNagel, A (Abigail) | OpponentMohokare, R (Rorisang) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentVaal Chess Club Blitz Open 31 May 2025 | TournamentVaal Chess Club Blitz Open 31 May 2025 | ||||||
| date2025-05-31 | rnd5 | typeBlitz | result1 | date2025-05-31 | rnd6 | typeBlitz | result1 | ||
| OpponentNagel, A (Abigail) | OpponentMohokare, R (Rorisang) | ||||||||
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 | Coleske ,T (Tyler) | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | -425 |
| 1406.6 | 981.6 | 0 | 0 | 0 | 0 | 1200 | 981.6 | ||||||
| 2 | Meyer ,R (Ryan) | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | -425 |
| 1202.5 | 777.5 | 0 | 0 | 0 | 0 | 1200 | 777.5 | ||||||
| 3 | Moreki ,J (Junior Tau) | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | -425 |
| 1248.9 | 823.9 | 0 | 0 | 0 | 0 | 1200 | 823.9 | ||||||
| 4 | Nagel ,A (Abigail) | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 425 |
| 1074.1 | 1499.1 | 0 | 0 | 0 | 0 | 1200 | 1499.1 | ||||||
| 5 | Mohokare ,R (Rorisang) | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 425 |
| 1162.5 | 1587.5 | 0 | 0 | 0 | 0 | 1200 | 1587.5 | ||||||
| 6 | Khumalo ,L (Lwandile Sanelisiwe G) | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | -425 |
| 1155.3 | 730.3 | 0 | 0 | 0 | 0 | 1200 | 730.3 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|