PLAYER PAGE
Personal
Grobbelaar, S (Schalk)
Chess SA id
185011252FIDE id
?Date of birth
1985-04-09 (Adult)Gender
MaleRegion
Johannesburg Metro (GJM)Citizen
RSATitles
Chess SA registered
NoLast active game
2024-06-01Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1485.1 | 1481.4 | 1513 | 1513 |
| Raw rating | 1484.8 | 1480.7 | 1513 | 1513 |
| Weighted rating | 1485.1 | 1481.4 | 1509.9 | 1509.9 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 1013 | 1013 | 1013 | 1013 |
| K-factor | 32 | 32 | 32 | 32 |
| Min/Max rating change allowed | 110.5 | 111.2 | 106.2 | 106.2 |
| Highest rating | 15132024-02-01 | 15132024-02-01 | 15132024-02-01 | 15132024-02-01 |
| Highest raw rating | 15132024-02-01 | 15132024-02-01 | 15132024-02-01 | 15132024-02-01 |
| Highest weighted rating | 1479.52025-08-01 | 1476.22025-08-01 | 1502.62025-08-01 | 1502.62025-08-01 |
| Highest weighted performance | 1324.12024-06-01 | 1332.22024-06-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 1.3 | 1.2 | 0 | 0 |
| New rating | 1486.4 | 1482.7 | 1513 | 1513 |
| Analysis | ||||
| Rating | 1485.1 | 1481.4 | 1513 | 1513 |
| Raw rating | 1484.8 | 1480.7 | 1513 | 1513 |
| Weighted rating | 1485.1 | 1481.4 | 1509.9 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 32 | 32 | 32 | 32 |
| Floor | 1013 | 1013 | 1013 | 1013 |
| Max/Min rating change allowed | 110.5 | 111.2 | 106.2 | 106.2 |
| 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 | 1484.8 | 1480.7 | 1513 | 1513 |
| New weighted rating | 1486.4 | 1482.7 | 1512 | 1512 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1486.4 | 1482.7 | 1513 | 1513 |
| Temp new rating +/- | 1.3 | 1.2 | 0 | 0 |
| Final new rating +/- | 1.3 | 1.2 | 0 | 0 |
| New rating | 1486.4 | 1482.7 | 1513 | 1513 |
| New K-factor | 32 | 32 | 32 | 32 |
| New floor | 1013 | 1013 | 1013 | 1013 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 5 | 5 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 5 | 5 | 0 | 0 |
| Games since | |||||||||||||||||
| Main5 | Standard5 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | Adult | ||||||||||||||||
| Region | Johannesburg Metro (GJM) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult 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 | 5 | 2 | 40 | -85 | 1409.1 | 1324.1 |
| Standard | 5 | 2 | 40 | -85 | 1409.1 | 1324.1 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-09-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-08-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-07-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-06-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-05-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-04-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-03-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-02-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2025-01-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-12-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-11-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-10-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-09-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-08-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-07-01 | 1484.8 | 1480.7 | 1513 | 1513 |
| 2024-06-01 | 1513 | 1513 | 1513 | 1513 |
| 2024-08-01 | 1513 | 1513 | 1513 | 1513 |
| 2024-04-01 | 1513 | 1513 | 1513 | 1513 |
| 2024-03-01 | 1513 | 1513 | 1513 | 1513 |
| 2024-02-01 | 1513 | 1513 | 1513 | 1513 |
| 2024-01-01 | 1513 | 1513 | 1513 | 1513 |
| 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 |
|---|
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (C) | 2024-06-01 | 2024-06-01 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | ||||||
| date2024-06-01 | rnd3 | typeStandard | result1 | date2024-06-01 | rnd4 | typeStandard | result1 | ||
| OpponentRaputsoa, B (Bohlale) | OpponentRakubutu, B (Banjo) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | ||||||
| date2024-06-01 | rnd3 | typeStandard | result1 | date2024-06-01 | rnd4 | typeStandard | result1 | ||
| OpponentRaputsoa, B (Bohlale) | OpponentRakubutu, B (Banjo) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | ||||||
| date2024-06-01 | rnd3 | typeStandard | result1 | date2024-06-01 | rnd4 | typeStandard | result1 | ||
| OpponentRaputsoa, B (Bohlale) | OpponentRakubutu, B (Banjo) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | Tournament2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section | ||||||
| date2024-06-01 | rnd3 | typeStandard | result1 | date2024-06-01 | rnd4 | typeStandard | result1 | ||
| OpponentRaputsoa, B (Bohlale) | OpponentRakubutu, B (Banjo) | ||||||||
| # | 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 | Ntsileng ,SR (Sebaga Reneilwe) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1415.7 | 990.7 | 1434.2 | 990.7 | 0 | 0 | 0 | 0 | ||||||
| 2 | Marshall ,M (Matthew) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1464.7 | 1039.7 | 1459.4 | 1039.7 | 0 | 0 | 0 | 0 | ||||||
| 3 | Raputsoa ,B (Bohlale) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1522.4 | 1947.4 | 1519.4 | 1947.4 | 0 | 0 | 0 | 0 | ||||||
| 4 | Rakubutu ,B (Banjo) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 5 | Mahlobogoane ,K (Katlego) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1442.6 | 1017.6 | 1473.1 | 1017.6 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|