PLAYER PAGE
Personal
Coetzee, W (Willem Christoffel)
Chess SA id
1070099945FIDE id
?Date of birth
2007-03-05 (U20)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2024-08-03Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1394.3 | 1413.6 | 1200 | 1200 |
| Raw rating | 1394.3 | 1413.6 | 1200 | 1200 |
| Weighted rating | 1385.6 | 1403.7 | 1200 | 1200 |
| Weighted performance | 1053.2 | 1052.4 | 0 | 0 |
| Floor | 894.3 | 913.6 | 700 | 700 |
| K-factor | 36 | 32 | 36 | 36 |
| Min/Max rating change allowed | 125.7 | 122.3 | 165.8 | 165.8 |
| Highest rating | 1394.32024-09-01 | 1413.62024-09-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1394.32024-09-01 | 1413.62024-09-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 1379.22025-08-01 | 1396.42025-08-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 1352.22024-08-01 | 1351.12024-08-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1394.3 | 1413.6 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1394.3 | 1413.6 | 1200 | 1200 |
| Raw rating | 1394.3 | 1413.6 | 1200 | 1200 |
| Weighted rating | 1385.6 | 1403.7 | 1200 | |
| Weighted performance | 1053.2 | 1052.4 | 0 | |
| K-factor | 36 | 32 | 36 | 36 |
| Floor | 894.3 | 913.6 | 700 | 700 |
| Max/Min rating change allowed | 125.7 | 122.3 | 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 | 1394.3 | 1413.6 | 1200 | 1200 |
| New weighted rating | 1387.3 | 1405.7 | 1200 | 1200 |
| New weighted performance | 1044.6 | 1043.8 | 0 | 0 |
| Temp new rating | 1394.3 | 1413.6 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1394.3 | 1413.6 | 1200 | 1200 |
| New K-factor | 36 | 32 | 36 | 36 |
| New floor | 894.3 | 913.6 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 7 | 7 | 0 | 0 | |
| 5 | 5 | 0 | 0 | |
| 15 | 15 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 51 | 51 | 0 | 0 |
| Games since | |||||||||||||||||
| Main7 | Standard7 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U20 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 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 | 51 | 36.5 | 71.57 | 183.3 | 1170.2 | 1353.5 |
| Standard | 51 | 36.5 | 71.57 | 183.3 | 1170.2 | 1353.5 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-09-30 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-09-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-08-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-07-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-06-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-05-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-04-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-03-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-02-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2025-01-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2024-12-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2024-11-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2024-10-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2024-09-01 | 1394.3 | 1413.6 | 1200 | 1200 |
| 2024-08-01 | 1336.3 | 1346.6 | 1200 | 1200 |
| 2024-07-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2024-09-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2024-05-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2024-04-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2024-03-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2024-02-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2024-01-01 | 1336 | 1347.7 | 1200 | 1200 |
| 2023-12-01 | 1336 | 1347.7 | 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 |
|---|
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2024 Tshwane North School District Team League Finals (U19) | 2024-08-03 | 2024-08-03 | Standard | Tshwane (GTP) | 5 | 5 | 5 | Yes | Analysis |
| 2 | 2024 Tshwane North School District Cluster 4 & 5 Team League (U19) | 2024-07-20 | 2024-07-20 | Standard | Tshwane (GTP) | 3 | 2 | 1 | Yes | Analysis |
| 3 | 2023 Tshwane North School District CLOSED League Championships (D3) | 2023-08-12 | 2023-08-12 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 4 | 2022 Gauteng Schools Team Championships (U15 Open) | 2022-08-26 | 2022-08-26 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2022 D3 Cluster Teams (U15 Mixed) | 2022-05-28 | 2022-05-28 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 6 | 2022 D3 Cluster City Schools (U15) | 2022-04-23 | 2022-04-23 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 7 | 2019 Gauteng School League Finals (U13 Open) | 2019-08-23 | 2019-08-23 | Standard | Tshwane (GTP) | 5 | 4 | 3 | Yes | Analysis |
| 8 | 2019 D3 Team League (U13) | 2019-07-20 | 2019-07-20 | Standard | Tshwane (GTP) | 5 | 5 | 5 | Yes | Analysis |
| 9 | D3 Primary School League Cluster 4 2019 (U13) | 2019-05-12 | 2019-05-12 | Standard | Tshwane (GTP) | 5 | 5 | 4.5 | Yes | Analysis |
| 10 | 2019 D3 Individuals (U13 Boys) | 2019-04-13 | 2019-04-13 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 11 | 2018 D3 Tshwane North Individual Chess Championships (U11 Mixed) | 2018-03-24 | 2018-03-24 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 13 | Tournament2019 D3 Individuals | Tournament2019 Gauteng School League Finals | ||||||
| date2019-04-13 | rnd5 | typeStandard | result1 | date2019-08-23 | rnd2 | typeStandard | result1 | ||
| OpponentDe Goede, D (De La Rey) | OpponentDinham, K (Kiara) | ||||||||
| 2 | 6 | Tournament2024 Tshwane North School District Cluster 4 & 5 Team League | Tournament2024 Tshwane North School District Team League Finals | ||||||
| date2024-07-20 | rnd3 | typeStandard | result1 | date2024-08-03 | rnd5 | typeStandard | result1 | ||
| OpponentDe Beer, JP (Jan Petrus) | OpponentHans, N (Nyeko) | ||||||||
| 3 | 3 | Tournament2023 Tshwane North School District CLOSED League Championships | Tournament2023 Tshwane North School District CLOSED League Championships | ||||||
| date2023-08-12 | rnd1 | typeStandard | result1 | date2023-08-12 | rnd3 | typeStandard | result1 | ||
| OpponentMahlabe, B (Botshelo) | OpponentMonyamane, K (Karabo Palesa) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 13 | Tournament2019 D3 Individuals | Tournament2019 Gauteng School League Finals | ||||||
| date2019-04-13 | rnd5 | typeStandard | result1 | date2019-08-23 | rnd2 | typeStandard | result1 | ||
| OpponentDe Goede, D (De La Rey) | OpponentDinham, K (Kiara) | ||||||||
| 2 | 6 | Tournament2024 Tshwane North School District Cluster 4 & 5 Team League | Tournament2024 Tshwane North School District Team League Finals | ||||||
| date2024-07-20 | rnd3 | typeStandard | result1 | date2024-08-03 | rnd5 | typeStandard | result1 | ||
| OpponentDe Beer, JP (Jan Petrus) | OpponentHans, N (Nyeko) | ||||||||
| 3 | 3 | Tournament2023 Tshwane North School District CLOSED League Championships | Tournament2023 Tshwane North School District CLOSED League Championships | ||||||
| date2023-08-12 | rnd1 | typeStandard | result1 | date2023-08-12 | rnd3 | typeStandard | result1 | ||
| OpponentMahlabe, B (Botshelo) | OpponentMonyamane, K (Karabo Palesa) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 9 | TournamentD3 Primary School League Cluster 4 2019 | Tournament2019 Gauteng School League Finals | ||||||
| date2019-05-12 | rnd4 | typeStandard | result1 | date2019-08-23 | rnd2 | typeStandard | result1 | ||
| OpponentDeysel, JM (Juan Michael) | OpponentDinham, K (Kiara) | ||||||||
| 2 | 6 | Tournament2024 Tshwane North School District Cluster 4 & 5 Team League | Tournament2024 Tshwane North School District Team League Finals | ||||||
| date2024-07-20 | rnd3 | typeStandard | result1 | date2024-08-03 | rnd5 | typeStandard | result1 | ||
| OpponentDe Beer, JP (Jan Petrus) | OpponentHans, N (Nyeko) | ||||||||
| 3 | 3 | Tournament2023 Tshwane North School District CLOSED League Championships | Tournament2023 Tshwane North School District CLOSED League Championships | ||||||
| date2023-08-12 | rnd1 | typeStandard | result1 | date2023-08-12 | rnd3 | typeStandard | result1 | ||
| OpponentMahlabe, B (Botshelo) | OpponentMonyamane, K (Karabo Palesa) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 9 | TournamentD3 Primary School League Cluster 4 2019 | Tournament2019 Gauteng School League Finals | ||||||
| date2019-05-12 | rnd4 | typeStandard | result1 | date2019-08-23 | rnd2 | typeStandard | result1 | ||
| OpponentDeysel, JM (Juan Michael) | OpponentDinham, K (Kiara) | ||||||||
| 2 | 6 | Tournament2024 Tshwane North School District Cluster 4 & 5 Team League | Tournament2024 Tshwane North School District Team League Finals | ||||||
| date2024-07-20 | rnd3 | typeStandard | result1 | date2024-08-03 | rnd5 | typeStandard | result1 | ||
| OpponentDe Beer, JP (Jan Petrus) | OpponentHans, N (Nyeko) | ||||||||
| 3 | 3 | Tournament2023 Tshwane North School District CLOSED League Championships | Tournament2023 Tshwane North School District CLOSED League Championships | ||||||
| date2023-08-12 | rnd1 | typeStandard | result1 | date2023-08-12 | rnd3 | typeStandard | result1 | ||
| OpponentMahlabe, B (Botshelo) | OpponentMonyamane, K (Karabo Palesa) | ||||||||
| # | 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 | Koning ,L (Lehan) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1432.8 | 1007.8 | 1429.8 | 1007.8 | 0 | 0 | 0 | 0 | ||||||
| 2 | Fulat ,F (Faheem) | 3 | 1.5 | 0 | 3 | 1.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 575.1 | 575.1 | 590.5 | 575.1 | 0 | 0 | 0 | 0 | ||||||
| 3 | De Beer ,JP (Jan Petrus) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1302.5 | 1727.5 | 1303.7 | 1727.5 | 0 | 0 | 0 | 0 | ||||||
| 4 | Monnig ,E (Erika) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1620.6 | 1195.6 | 1620.7 | 1195.6 | 0 | 0 | 0 | 0 | ||||||
| 5 | Mahlabe ,B (Botshelo) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 6 | Van Dalen ,JJP (Jan Johannes Petrus) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1338.1 | 1763.1 | 1348 | 1763.1 | 0 | 0 | 0 | 0 | ||||||
| 7 | De Goede ,D (De La Rey) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 8 | Ndlovu ,O (Ofentse) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 9 | Magagula ,F (Fakazi) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 10 | Hans ,N (Nyeko) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|