PLAYER PAGE
Personal
Effendi, D (Derren)
Chess SA id
200078504FIDE id
?Date of birth
2000-10-12 (Adult)Gender
FemaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2018-03-10Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Raw rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Weighted rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 500 | 500 | 500 | 500 |
| K-factor | 40 | 40 | 40 | 40 |
| Min/Max rating change allowed | 415.8 | 409.4 | 447.2 | 447.2 |
| Highest rating | 12002024-11-01 | 12002024-11-01 | 12002024-02-01 | 12002024-02-01 |
| Highest raw rating | 554.72024-02-01 | 565.62024-02-01 | 503.62024-02-01 | 503.62024-02-01 |
| Highest weighted rating | 554.72024-11-01 | 565.62024-11-01 | 503.62024-11-01 | 503.62024-11-01 |
| Highest weighted performance | 12002024-12-01 | 12002024-12-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Analysis | ||||
| Rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Raw rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Weighted rating | 554.7 | 565.6 | 503.6 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 40 | 40 | 40 | 40 |
| Floor | 500 | 500 | 500 | 500 |
| Max/Min rating change allowed | 415.8 | 409.4 | 447.2 | 447.2 |
| 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 | 554.7 | 565.6 | 503.6 | 503.6 |
| New weighted rating | 554.7 | 565.6 | 503.6 | 503.6 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 554.7 | 565.6 | 503.6 | 503.6 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 554.7 | 565.6 | 503.6 | 503.6 |
| New K-factor | 40 | 40 | 40 | 40 |
| New floor | 500 | 500 | 500 | 500 |
| 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 | 18 | 18 | 0 | 0 |
| Games since | |||||||||||||||||
| Main0 | Standard0 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | Adult | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Female | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Female | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Female | -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 | 8 | 2.5 | 31.25 | -159.4 | 965.4 | 806 |
| Standard | 8 | 2.5 | 31.25 | -159.4 | 965.4 | 806 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-09-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-08-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-07-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-06-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-05-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-04-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-03-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-02-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2025-01-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-12-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-11-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-10-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-09-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-08-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-07-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-06-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-08-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-04-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-03-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-02-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2024-01-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2023-12-01 | 554.7 | 565.6 | 503.6 | 503.6 |
| 2023-11-01 | 554.7 | 565.6 | 503.6 | 503.6 |
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 | 2018 D4 Tshwane North Individual Chess Championships (U19 Girls) | 2018-03-10 | 2018-03-10 | Standard | Tshwane (GTP) | 5 | 3 | 2 | Yes | Analysis |
| 2 | South African Junior Team Championships 2017 (U16-U20 Girls) | 2018-01-04 | 2018-01-08 | Standard | 4 Knights (4K) | 7 | 5 | 0.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | Tournament2018 D4 Tshwane North Individual Chess Championships | Tournament2018 D4 Tshwane North Individual Chess Championships | ||||||
| date2018-03-10 | rnd2 | typeStandard | result0.5 | date2018-03-10 | rnd5 | typeStandard | result0.5 | ||
| OpponentGovender, A (Arasi) | OpponentJaichand, Y (Yuvana) | ||||||||
| 2 | 1 | TournamentSouth African Junior Team Championships 2017 | TournamentSouth African Junior Team Championships 2017 | ||||||
| date2018-01-05 | rnd3 | typeStandard | result0.5 | date2018-01-05 | rnd3 | typeStandard | result0.5 | ||
| OpponentMbele, R (Reabetswe) | OpponentMbele, R (Reabetswe) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | Tournament2018 D4 Tshwane North Individual Chess Championships | Tournament2018 D4 Tshwane North Individual Chess Championships | ||||||
| date2018-03-10 | rnd2 | typeStandard | result0.5 | date2018-03-10 | rnd5 | typeStandard | result0.5 | ||
| OpponentGovender, A (Arasi) | OpponentJaichand, Y (Yuvana) | ||||||||
| 2 | 1 | TournamentSouth African Junior Team Championships 2017 | TournamentSouth African Junior Team Championships 2017 | ||||||
| date2018-01-05 | rnd3 | typeStandard | result0.5 | date2018-01-05 | rnd3 | typeStandard | result0.5 | ||
| OpponentMbele, R (Reabetswe) | OpponentMbele, R (Reabetswe) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Tournament2018 D4 Tshwane North Individual Chess Championships | Tournament2018 D4 Tshwane North Individual Chess Championships | ||||||
| date2018-03-10 | rnd4 | typeStandard | result1 | date2018-03-10 | rnd4 | typeStandard | result1 | ||
| OpponentMamabolo, AR (Agisanang Rose) | OpponentMamabolo, AR (Agisanang Rose) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Tournament2018 D4 Tshwane North Individual Chess Championships | Tournament2018 D4 Tshwane North Individual Chess Championships | ||||||
| date2018-03-10 | rnd4 | typeStandard | result1 | date2018-03-10 | rnd4 | typeStandard | result1 | ||
| OpponentMamabolo, AR (Agisanang Rose) | OpponentMamabolo, AR (Agisanang Rose) | ||||||||
| # | 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 | Botha ,L (Le-Ri) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 907.6 | 482.6 | 907.6 | 482.6 | 0 | 0 | 0 | 0 | ||||||
| 2 | Seloana ,MA (Mosa Annah) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1251 | 826 | 1251 | 826 | 0 | 0 | 0 | 0 | ||||||
| 3 | Mamabolo ,AR (Agisanang Rose) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 635 | 1060 | 635 | 1060 | 0 | 0 | 0 | 0 | ||||||
| 4 | Mbele ,R (Reabetswe) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 533.4 | 533.4 | 533.4 | 533.4 | 0 | 0 | 0 | 0 | ||||||
| 5 | Jaichand ,Y (Yuvana) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1200 | 1200 | 1200 | 0 | 0 | 0 | 0 | ||||||
| 6 | Govender ,A (Arasi) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1200 | 1200 | 1200 | 0 | 0 | 0 | 0 | ||||||
| 7 | Fredericks ,J (Janine) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 869.8 | 444.8 | 869.8 | 444.8 | 0 | 0 | 0 | 0 | ||||||
| 8 | Moloto ,A (Amogelang) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1126 | 701 | 1126 | 701 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|