PLAYER PAGE
Personal
Du Preez, D (Donnalee)
Chess SA id
2130303333FIDE id
?Date of birth
2013-07-19 (U14)Gender
FemaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-16Personal details last changed
1900-01-01Junior GPX Games
20Junior GPX Points
1424.9| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1471.4 | 1469.4 | 1200 | 1200 |
| Raw rating | 1456.5 | 1461.8 | 1200 | 1200 |
| Weighted rating | 1372.4 | 1376.9 | 1200 | 1200 |
| Weighted performance | 1471.4 | 1469.4 | 0 | 0 |
| Floor | 956.5 | 961.8 | 700 | 700 |
| K-factor | 32 | 32 | 36 | 36 |
| Min/Max rating change allowed | 115.1 | 114.2 | 165.8 | 165.8 |
| Highest rating | 1540.62024-08-01 | 1540.92024-08-01 | 12002024-05-01 | 12002024-05-01 |
| Highest raw rating | 1456.52025-09-01 | 1461.82025-09-01 | 12002024-05-01 | 12002024-05-01 |
| Highest weighted rating | 14422024-10-01 | 1444.82024-10-01 | 12002024-05-01 | 12002024-05-01 |
| Highest weighted performance | 1540.62024-08-01 | 1540.92024-08-01 | 12002024-05-01 | 12002024-05-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | -0.5 | -0.5 | 0 | 0 |
| New rating | 1470.9 | 1468.9 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1471.4 | 1469.4 | 1200 | 1200 |
| Raw rating | 1456.5 | 1461.8 | 1200 | 1200 |
| Weighted rating | 1372.4 | 1376.9 | 1200 | |
| Weighted performance | 1471.4 | 1469.4 | 0 | |
| K-factor | 32 | 32 | 36 | 36 |
| Floor | 956.5 | 961.8 | 700 | 700 |
| Max/Min rating change allowed | 115.1 | 114.2 | 165.8 | 165.8 |
| 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 | 1456.5 | 1461.8 | 1200 | 1200 |
| New weighted rating | 1383.3 | 1387.9 | 1200 | 1200 |
| New weighted performance | 1470.9 | 1468.9 | 0 | 0 |
| Temp new rating | 1470.9 | 1468.9 | 1200 | 1200 |
| Temp new rating +/- | -0.5 | -0.5 | 0 | 0 |
| Final new rating +/- | -0.5 | -0.5 | 0 | 0 |
| New rating | 1470.9 | 1468.9 | 1200 | 1200 |
| New K-factor | 32 | 32 | 36 | 36 |
| New floor | 956.5 | 961.8 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 15 | 15 | 0 | 0 | |
| 23 | 23 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 38 | 38 | 0 | 0 |
| Games since | |||||||||||||||||
| Main38 | Standard38 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U14 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Female | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 1405 | 513 | 193 | ||||||||||||||
| Female | 213 | 84 | 36 | ||||||||||||||
| U14 | 208 | 67 | 23 | ||||||||||||||
| U14 Female | 45 | 14 | 6 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 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 | 15 | 12 | 80 | 255 | 1254.8 | 1509.8 |
| Standard | 15 | 12 | 80 | 255 | 1254.8 | 1509.8 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 38 | 28.5 | 75 | 212.5 | 1241.1 | 1453.6 |
| Standard | 38 | 28.5 | 75 | 212.5 | 1241.1 | 1453.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1456.5 | 1461.8 | 1200 | 1200 |
| 2025-09-01 | 1456.5 | 1461.8 | 1200 | 1200 |
| 2025-08-01 | 1424.9 | 1423.5 | 1200 | 1200 |
| 2025-07-01 | 1442 | 1444.8 | 1200 | 1200 |
| 2025-06-01 | 1442 | 1444.8 | 1200 | 1200 |
| 2025-05-01 | 1411 | 1407 | 1200 | 1200 |
| 2025-04-01 | 1411 | 1407 | 1200 | 1200 |
| 2025-03-01 | 1411 | 1407 | 1200 | 1200 |
| 2025-02-01 | 1411 | 1407 | 1200 | 1200 |
| 2025-01-01 | 1339.2 | 1354.4 | 1200 | 1200 |
| 2024-12-01 | 1339.2 | 1354.4 | 1200 | 1200 |
| 2024-11-01 | 1339.2 | 1354.4 | 1200 | 1200 |
| 2024-10-01 | 1310.5 | 1322.7 | 1200 | 1200 |
| 2024-09-01 | 1296.8 | 1313.7 | 1200 | 1200 |
| 2024-08-01 | 1282.5 | 1297.1 | 1200 | 1200 |
| 2024-07-01 | 1257.4 | 1267.6 | 1200 | 1200 |
| 2024-06-01 | 1257.4 | 1267.6 | 1200 | 1200 |
| 2024-08-01 | 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 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Tshwane North District CLOSED Team Championships (D3) (U13 Girls) | 2025-08-16 | 2025-08-16 | Standard | Tshwane (GTP) | 5 | 4 | 4 | Yes | Analysis |
| 2 | 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U13 Girls) | 2025-07-26 | 2025-07-26 | Standard | Tshwane (GTP) | 1 | 1 | 0 | Yes | Analysis |
| 3 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U13 Girls) | 2025-05-24 | 2025-05-24 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 4 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U13 Girls) | 2025-05-10 | 2025-05-10 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 9 | Tournament2024 Tshwane North School District CLOSED Individual Champioships | TournamentGauteng Schools Individuals Finals 2024 | ||||||
| date2024-05-11 | rnd2 | typeStandard | result1 | date2024-08-16 | rnd2 | typeStandard | result1 | ||
| OpponentMolekoa, N (Neo) | OpponentSono, G (Gift) | ||||||||
| 2 | 6 | TournamentGauteng Top Schools 2024 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2024-10-04 | rnd4 | typeStandard | result1 | date2025-05-10 | rnd4 | typeStandard | result1 | ||
| OpponentRetief, C (Cedine) | OpponentVenter, C (Chermone) | ||||||||
| 3 | 4 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd5 | typeStandard | result1 | ||
| OpponentKleinhans, D (Deané) | OpponentLebudi, K (Katlego) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 9 | Tournament2024 Tshwane North School District CLOSED Individual Champioships | TournamentGauteng Schools Individuals Finals 2024 | ||||||
| date2024-05-11 | rnd2 | typeStandard | result1 | date2024-08-16 | rnd2 | typeStandard | result1 | ||
| OpponentMolekoa, N (Neo) | OpponentSono, G (Gift) | ||||||||
| 2 | 6 | TournamentGauteng Top Schools 2024 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2024-10-04 | rnd4 | typeStandard | result1 | date2025-05-10 | rnd4 | typeStandard | result1 | ||
| OpponentRetief, C (Cedine) | OpponentVenter, C (Chermone) | ||||||||
| 3 | 4 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd5 | typeStandard | result1 | ||
| OpponentKleinhans, D (Deané) | OpponentLebudi, K (Katlego) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | TournamentGauteng Top Schools 2024 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2024-10-04 | rnd4 | typeStandard | result1 | date2025-05-10 | rnd4 | typeStandard | result1 | ||
| OpponentRetief, C (Cedine) | OpponentVenter, C (Chermone) | ||||||||
| 2 | 5 | Tournament2024 Tshwane North School District Cluster 4 & 5 Team League | TournamentGauteng Schools Individuals Finals 2024 | ||||||
| date2024-07-20 | rnd1 | typeStandard | result1 | date2024-08-16 | rnd2 | typeStandard | result1 | ||
| OpponentPrinsloo, P (Pieter) | OpponentSono, G (Gift) | ||||||||
| 3 | 4 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd5 | typeStandard | result1 | ||
| OpponentKleinhans, D (Deané) | OpponentLebudi, K (Katlego) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | TournamentGauteng Top Schools 2024 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2024-10-04 | rnd4 | typeStandard | result1 | date2025-05-10 | rnd4 | typeStandard | result1 | ||
| OpponentRetief, C (Cedine) | OpponentVenter, C (Chermone) | ||||||||
| 2 | 5 | Tournament2024 Tshwane North School District Cluster 4 & 5 Team League | TournamentGauteng Schools Individuals Finals 2024 | ||||||
| date2024-07-20 | rnd1 | typeStandard | result1 | date2024-08-16 | rnd2 | typeStandard | result1 | ||
| OpponentPrinsloo, P (Pieter) | OpponentSono, G (Gift) | ||||||||
| 3 | 4 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd5 | typeStandard | result1 | ||
| OpponentKleinhans, D (Deané) | OpponentLebudi, K (Katlego) | ||||||||
| # | 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 | Swart ,M (Mignon) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1343.5 | 1343.5 | 1341 | 1343.5 | 0 | 0 | 0 | 0 | ||||||
| 2 | Kleinhans ,D (Deané) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1343.8 | 1343.8 | 1335.2 | 1343.8 | 0 | 0 | 0 | 0 | ||||||
| 3 | Sono ,G (Gift) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | Molekwa ,O (Otshepeng) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1195.5 | 1620.5 | 1194.7 | 1620.5 | 0 | 0 | 0 | 0 | ||||||
| 5 | Mashilo ,B (Bygrace) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1222.1 | 1647.1 | 1226.3 | 1647.1 | 0 | 0 | 0 | 0 | ||||||
| 6 | Lebudi ,K (Katlego) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 7 | Kekana ,D (Ditso) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1199.9 | 1624.9 | 1199.9 | 1624.9 | 0 | 0 | 0 | 0 | ||||||
| 8 | Smith ,L (Leah) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1304.5 | 879.5 | 1296.3 | 879.5 | 0 | 0 | 0 | 0 | ||||||
| 9 | Prinsloo ,P (Pieter) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1130.9 | 1555.9 | 1116.8 | 1555.9 | 0 | 0 | 0 | 0 | ||||||
| 10 | Prinsloo ,V (Veronique) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1267.4 | 842.4 | 1251.8 | 842.4 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|