PLAYER PAGE
Personal
De Klerk, SJ (Sj)
Chess SA id
157056500FIDE id
?Date of birth
1957-08-08 (Adult)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2018-05-05Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Raw rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Weighted rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 1192.3 | 1192.8 | 1190 | 1190 |
| K-factor | 28 | 28 | 28 | 28 |
| Min/Max rating change allowed | 82.2 | 82.2 | 82.5 | 82.5 |
| Highest rating | 1706.52018-05-01 | 1706.92018-05-01 | 16902019-05-01 | 16902019-05-01 |
| Highest raw rating | 1692.32024-02-01 | 1692.82024-02-01 | 16902024-02-01 | 16902024-02-01 |
| Highest weighted rating | 1692.32024-02-01 | 1692.82024-02-01 | 16902019-05-01 | 16902019-05-01 |
| Highest weighted performance | 1706.52018-05-01 | 1706.92018-05-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Analysis | ||||
| Rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Raw rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Weighted rating | 1692.3 | 1692.8 | 1690 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 28 | 28 | 28 | 28 |
| Floor | 1192.3 | 1192.8 | 1190 | 1190 |
| Max/Min rating change allowed | 82.2 | 82.2 | 82.5 | 82.5 |
| 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 | 1692.3 | 1692.8 | 1690 | 1690 |
| New weighted rating | 1692.3 | 1692.8 | 1690 | 1690 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1692.3 | 1692.8 | 1690 | 1690 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1692.3 | 1692.8 | 1690 | 1690 |
| New K-factor | 28 | 28 | 28 | 28 |
| New floor | 1192.3 | 1192.8 | 1190 | 1190 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 53 | 40 | 13 | 0 |
| Games since | |||||||||||||||||
| Main0 | Standard0 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | Adult | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| 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 | 4 | 80 | 255 | 1449.2 | 1704.2 |
| Standard | 5 | 4 | 80 | 255 | 1449.2 | 1704.2 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-09-30 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-09-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-08-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-07-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-06-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-05-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-04-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-03-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-02-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2025-01-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-12-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-11-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-10-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-09-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-08-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-07-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-09-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-05-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-04-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-03-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-02-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2024-01-01 | 1692.3 | 1692.8 | 1690 | 1690 |
| 2023-12-01 | 1692.3 | 1692.8 | 1690 | 1690 |
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 | JNW Club - Bryanston Open 2 2018 (B) | 2018-05-05 | 2018-05-05 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 4 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd1 | typeStandard | result1 | date2018-05-05 | rnd3 | typeStandard | result1 | ||
| OpponentAllison, LM (Liam) | OpponentGardiner, N (Noa) | ||||||||
| 2 | 1 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd5 | typeStandard | result1 | date2018-05-05 | rnd5 | typeStandard | result1 | ||
| OpponentMokolopo, S (Sello) | OpponentMokolopo, S (Sello) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd1 | typeStandard | result1 | date2018-05-05 | rnd3 | typeStandard | result1 | ||
| OpponentAllison, LM (Liam) | OpponentGardiner, N (Noa) | ||||||||
| 2 | 1 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd5 | typeStandard | result1 | date2018-05-05 | rnd5 | typeStandard | result1 | ||
| OpponentMokolopo, S (Sello) | OpponentMokolopo, S (Sello) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd1 | typeStandard | result1 | date2018-05-05 | rnd3 | typeStandard | result1 | ||
| OpponentAllison, LM (Liam) | OpponentGardiner, N (Noa) | ||||||||
| 2 | 1 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd5 | typeStandard | result1 | date2018-05-05 | rnd5 | typeStandard | result1 | ||
| OpponentMokolopo, S (Sello) | OpponentMokolopo, S (Sello) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd1 | typeStandard | result1 | date2018-05-05 | rnd3 | typeStandard | result1 | ||
| OpponentAllison, LM (Liam) | OpponentGardiner, N (Noa) | ||||||||
| 2 | 1 | TournamentJNW Club - Bryanston Open 2 2018 | TournamentJNW Club - Bryanston Open 2 2018 | ||||||
| date2018-05-05 | rnd5 | typeStandard | result1 | date2018-05-05 | rnd5 | typeStandard | result1 | ||
| OpponentMokolopo, S (Sello) | OpponentMokolopo, S (Sello) | ||||||||
| # | 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 | Mokolopo ,S (Sello) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1328.3 | 1753.3 | 1332.7 | 1753.3 | 0 | 0 | 0 | 0 | ||||||
| 2 | Allison ,LM (Liam Mark) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1150.8 | 1575.8 | 1145.2 | 1575.8 | 0 | 0 | 0 | 0 | ||||||
| 3 | Malekane ,T (Tumelo) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1228.6 | 1653.6 | 1234.1 | 1653.6 | 0 | 0 | 0 | 0 | ||||||
| 4 | Mwale ,J (Joseph) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2201.9 | 1776.9 | 2198.8 | 1776.9 | 0 | 0 | 0 | 0 | ||||||
| 5 | Gardiner ,N (Noa) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1336.6 | 1761.6 | 1337.4 | 1761.6 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|