PLAYER PAGE
Personal
Jeffery, DGS (David)
Chess SA id
191014031FIDE id
?Date of birth
1991-12-16 (Adult)Gender
MaleRegion
Cape Town (WCT)Citizen
RSATitles
Chess SA registered
NoLast active game
2023-03-18Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1311.1 | 1300 | 1353.8 | 1300 |
| Raw rating | 1311.1 | 1300 | 1353.8 | 1300 |
| Weighted rating | 1310.1 | 1299 | 1352.4 | 1299 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 811.1 | 800 | 853.8 | 800 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 141.5 | 143.8 | 133.2 | 143.8 |
| Highest rating | 1652.32023-03-01 | 13002024-02-01 | 1634.52023-03-01 | 13002024-02-01 |
| Highest raw rating | 1311.12024-02-01 | 13002024-02-01 | 1353.82024-02-01 | 13002024-02-01 |
| Highest weighted rating | 1307.72025-08-01 | 1296.72025-08-01 | 1349.22025-08-01 | 1296.72025-08-01 |
| Highest weighted performance | 1652.32023-03-01 | 12002024-02-01 | 1634.52023-03-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1311.1 | 1300 | 1353.8 | 1300 |
| Analysis | ||||
| Rating | 1311.1 | 1300 | 1353.8 | 1300 |
| Raw rating | 1311.1 | 1300 | 1353.8 | 1300 |
| Weighted rating | 1310.1 | 1299 | 1352.4 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 811.1 | 800 | 853.8 | 800 |
| Max/Min rating change allowed | 141.5 | 143.8 | 133.2 | 143.8 |
| 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 | 1311.1 | 1300 | 1353.8 | 1300 |
| New weighted rating | 1310.8 | 1299.7 | 1353.3 | 1299.7 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1311.1 | 1300 | 1353.8 | 1300 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1311.1 | 1300 | 1353.8 | 1300 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 811.1 | 800 | 853.8 | 800 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 1 | 0 | 1 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 2 | 1 | 1 | 0 |
| Games since | |||||||||||||||||
| Main0 | Standard0 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | Adult | ||||||||||||||||
| Region | Cape Town (WCT) | ||||||||||||||||
| Province | Western Cape (WC) | ||||||||||||||||
| 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 | 1 | 1 | 100 | 425 | 1304.2 | 1729.2 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 1 | 1 | 100 | 425 | 1304.2 | 1729.2 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-09-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-08-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-07-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-06-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-05-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-04-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-03-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-02-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2025-01-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-12-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-11-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-10-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-09-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-08-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-07-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-06-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-08-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-04-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-03-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-02-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2024-01-01 | 1311.1 | 1300 | 1353.8 | 1300 |
| 2023-12-01 | 1209 | 1200 | 1218.4 | 1200 |
| 2023-11-01 | 1209 | 1200 | 1218.4 | 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 | WSU March Rapid 2023 | 2023-03-18 | 2023-03-18 | Rapid | Amathole (EAL) | 7 | 1 | 1 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentWSU March Rapid 2023 | TournamentWSU March Rapid 2023 | ||||||
| date2023-03-18 | rnd1 | typeRapid | result1 | date2023-03-18 | rnd1 | typeRapid | result1 | ||
| OpponentMginindo, L (Lutho) | OpponentMginindo, L (Lutho) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentWSU March Rapid 2023 | TournamentWSU March Rapid 2023 | ||||||
| date2023-03-18 | rnd1 | typeRapid | result1 | date2023-03-18 | rnd1 | typeRapid | result1 | ||
| OpponentMginindo, L (Lutho) | OpponentMginindo, L (Lutho) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentWSU March Rapid 2023 | TournamentWSU March Rapid 2023 | ||||||
| date2023-03-18 | rnd1 | typeRapid | result1 | date2023-03-18 | rnd1 | typeRapid | result1 | ||
| OpponentMginindo, L (Lutho) | OpponentMginindo, L (Lutho) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentWSU March Rapid 2023 | TournamentWSU March Rapid 2023 | ||||||
| date2023-03-18 | rnd1 | typeRapid | result1 | date2023-03-18 | rnd1 | typeRapid | result1 | ||
| OpponentMginindo, L (Lutho) | OpponentMginindo, L (Lutho) | ||||||||
| # | 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 | Mginindo ,L (Lutho) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1304.2 | 1729.2 | 0 | 0 | 1200 | 1729.2 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|