PLAYER PAGE
Personal
Duursema, W (Willem)
Chess SA id
1110316415FIDE id
?Date of birth
2011-05-29 (U16)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-16Personal details last changed
1900-01-01Junior GPX Games
44Junior GPX Points
1291.4| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1367.1 | 1368.6 | 1200 | 1200 |
| Raw rating | 1367.1 | 1368.6 | 1200 | 1200 |
| Weighted rating | 1257.5 | 1258.6 | 1200 | 1200 |
| Weighted performance | 1341.2 | 1344.7 | 0 | 0 |
| Floor | 875.5 | 878.1 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 130.7 | 130.4 | 165.8 | 165.8 |
| Highest rating | 1375.52025-08-01 | 1378.12025-08-01 | 12002025-03-01 | 12002025-03-01 |
| Highest raw rating | 1375.52025-08-01 | 1378.12025-08-01 | 12002025-03-01 | 12002025-03-01 |
| Highest weighted rating | 1246.12025-09-01 | 1247.22025-09-01 | 12002025-03-01 | 12002025-03-01 |
| Highest weighted performance | 1375.52025-08-01 | 1378.11900-01-01 | 01900-01-01 | 01900-01-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1367.1 | 1368.6 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1367.1 | 1368.6 | 1200 | 1200 |
| Raw rating | 1367.1 | 1368.6 | 1200 | 1200 |
| Weighted rating | 1257.5 | 1258.6 | 1200 | |
| Weighted performance | 1341.2 | 1344.7 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 875.5 | 878.1 | 700 | 700 |
| Max/Min rating change allowed | 130.7 | 130.4 | 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 | 1367.1 | 1368.6 | 1200 | 1200 |
| New weighted rating | 1268.2 | 1269.4 | 1200 | 1200 |
| New weighted performance | 1340.7 | 1344.2 | 0 | 0 |
| Temp new rating | 1367.1 | 1368.6 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1367.1 | 1368.6 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 875.5 | 878.1 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 44 | 44 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 44 | 44 | 0 | 0 |
| Games since | |||||||||||||||||
| Main44 | Standard44 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U16 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 2496 | 856 | 307 | ||||||||||||||
| Male | 2034 | 700 | 244 | ||||||||||||||
| U16 | 390 | 128 | 47 | ||||||||||||||
| U16 Male | 296 | 96 | 38 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 2387 | 876 | 339 | ||||||||||||||
| Male | 1938 | 714 | 268 | ||||||||||||||
| U16 | 378 | 131 | 53 | ||||||||||||||
| U16 Male | 294 | 101 | 43 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 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 | 44 | 25 | 56.82 | 58 | 1251.4 | 1309.3 |
| Standard | 44 | 25 | 56.82 | 58 | 1251.4 | 1309.3 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 44 | 25 | 56.82 | 58 | 1251.4 | 1309.3 |
| Standard | 44 | 25 | 56.82 | 58 | 1251.4 | 1309.3 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1367.1 | 1368.6 | 1200 | 1200 |
| 2025-09-01 | 1367.1 | 1368.6 | 1200 | 1200 |
| 2025-08-01 | 1375.5 | 1378.1 | 1200 | 1200 |
| 2025-07-01 | 1351.4 | 1354.4 | 1200 | 1200 |
| 2025-06-01 | 1295.8 | 1298.7 | 1200 | 1200 |
| 2025-05-01 | 1223.6 | 1229.1 | 1200 | 1200 |
| 2025-04-01 | 1199.8 | 1199.8 | 1200 | 1200 |
| 2025-03-01 | 1199 | 1198.7 | 1200 | 1200 |
| 2025-02-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-01-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-12-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-10-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-09-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-06-01 | 1200 | 1200 | 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 |
|---|
Last 500 tournaments since 01 January 2018
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Tshwane North School District Cluster 4 & 5 Team League (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-07-26 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentMaabane, N (Nareadi Phuthi Mmodi) | OpponentChansa, E (Elisee) | ||||||||
| 2 | 3 | Tournament2025 Jacaranda Round Robin Open Chess Tournament | Tournament2025 Jacaranda Round Robin Open Chess Tournament | ||||||
| date2025-06-21 | rnd3 | typeStandard | result1 | date2025-06-21 | rnd5 | typeStandard | result1 | ||
| OpponentKritzinger, M (Madeleine) | OpponentButhelezi, M (Mpendulo) | ||||||||
| 3 | 3 | Tournament2025 Mid Gauteng Open Chess Tournament | Tournament2025 Silver Lakes Chess Club Open Chess Tournament | ||||||
| date2025-04-12 | rnd4 | typeStandard | result1 | date2025-05-03 | rnd1 | typeStandard | result1 | ||
| OpponentVan Zijl, J (Joane) | OpponentKekaana, O (Obakeng) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Tshwane North School District Cluster 4 & 5 Team League (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-07-26 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentMaabane, N (Nareadi Phuthi Mmodi) | OpponentChansa, E (Elisee) | ||||||||
| 2 | 3 | Tournament2025 Jacaranda Round Robin Open Chess Tournament | Tournament2025 Jacaranda Round Robin Open Chess Tournament | ||||||
| date2025-06-21 | rnd3 | typeStandard | result1 | date2025-06-21 | rnd5 | typeStandard | result1 | ||
| OpponentKritzinger, M (Madeleine) | OpponentButhelezi, M (Mpendulo) | ||||||||
| 3 | 3 | Tournament2025 Mid Gauteng Open Chess Tournament | Tournament2025 Silver Lakes Chess Club Open Chess Tournament | ||||||
| date2025-04-12 | rnd4 | typeStandard | result1 | date2025-05-03 | rnd1 | typeStandard | result1 | ||
| OpponentVan Zijl, J (Joane) | OpponentKekaana, O (Obakeng) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Tshwane North School District Cluster 4 & 5 Team League (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-07-26 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentMaabane, N (Nareadi Phuthi Mmodi) | OpponentChansa, E (Elisee) | ||||||||
| 2 | 3 | Tournament2025 Jacaranda Round Robin Open Chess Tournament | Tournament2025 Jacaranda Round Robin Open Chess Tournament | ||||||
| date2025-06-21 | rnd3 | typeStandard | result1 | date2025-06-21 | rnd5 | typeStandard | result1 | ||
| OpponentKritzinger, M (Madeleine) | OpponentButhelezi, M (Mpendulo) | ||||||||
| 3 | 3 | Tournament2025 Mid Gauteng Open Chess Tournament | Tournament2025 Silver Lakes Chess Club Open Chess Tournament | ||||||
| date2025-04-12 | rnd4 | typeStandard | result1 | date2025-05-03 | rnd1 | typeStandard | result1 | ||
| OpponentVan Zijl, J (Joane) | OpponentKekaana, O (Obakeng) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Tshwane North School District Cluster 4 & 5 Team League (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-07-26 | rnd2 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentMaabane, N (Nareadi Phuthi Mmodi) | OpponentChansa, E (Elisee) | ||||||||
| 2 | 3 | Tournament2025 Jacaranda Round Robin Open Chess Tournament | Tournament2025 Jacaranda Round Robin Open Chess Tournament | ||||||
| date2025-06-21 | rnd3 | typeStandard | result1 | date2025-06-21 | rnd5 | typeStandard | result1 | ||
| OpponentKritzinger, M (Madeleine) | OpponentButhelezi, M (Mpendulo) | ||||||||
| 3 | 3 | Tournament2025 Mid Gauteng Open Chess Tournament | Tournament2025 Silver Lakes Chess Club Open Chess Tournament | ||||||
| date2025-04-12 | rnd4 | typeStandard | result1 | date2025-05-03 | rnd1 | typeStandard | result1 | ||
| OpponentVan Zijl, J (Joane) | OpponentKekaana, O (Obakeng) | ||||||||
| # | 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 | Potgieter ,W (Wilmari) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1260.5 | 1685.5 | 1269.4 | 1685.5 | 0 | 0 | 0 | 0 | ||||||
| 2 | Ngwana ,T (Thapelo Jurie Junior) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1200 | 1200 | 1200 | 0 | 0 | 0 | 0 | ||||||
| 3 | Buthelezi ,M (Mpendulo) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | Mudzunga ,N (Ndiamurenda) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 5 | Westermann ,Z (Zelri) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1276.8 | 1701.8 | 1279.2 | 1701.8 | 0 | 0 | 0 | 0 | ||||||
| 6 | Songo ,D (Divine) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1761.2 | 1336.2 | 1765 | 1336.2 | 0 | 0 | 0 | 0 | ||||||
| 7 | Erasmus ,JD (Jacobus Daniel) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1300 | 875 | 1300 | 875 | 0 | 0 | 0 | 0 | ||||||
| 8 | Frauendorf ,D (Diedrich Karel) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
| 9 | Horn ,R (Renier) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1258.9 | 833.9 | 1267 | 833.9 | 0 | 0 | 0 | 0 | ||||||
| 10 | Elskie ,T (Tamryn) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1269.9 | 844.9 | 1258.3 | 844.9 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|