PLAYER PAGE
Willem Prinsloo
1140192801Cape Winelands (WCW)Personal
Main rating
| Rating | 1687.4 |
| K-factor | 28 |
| Floor | 1187.4 |
| Highest | 1687.4 (2026-06-01) |
| Min/Max +/- allowed | 83 |
| Rating Change () | |
| Games | 7 |
| Score | 3.5 |
| We | 4.97 |
| SWe | -1.47 |
| Temp +/- | -41.1 |
| Penalties | 0 |
| Weight perform | 1608.7 |
| Final +/- | -41.1 |
| New Rating () | |
| Rating | 1646.3 |
| K-factor | 28 |
| Floor | 1187.4 |
| Highest | 1687.4 (2026-06-01) |
| Min/Max +/- allowed | 82.8 |
Standard rating
| Rating | 1667.4 |
| K-factor | 28 |
| Floor | 1167.4 |
| Highest | 1667.4 (2026-06-01) |
| Min/Max +/- allowed | 85.2 |
| Rating Change () | |
| Games | 7 |
| Score | 3.5 |
| We | 4.79 |
| SWe | -1.29 |
| Temp +/- | -36 |
| Penalties | 0 |
| Weight perform | 1600.4 |
| Final +/- | -36 |
| New Rating () | |
| Rating | 1631.4 |
| K-factor | 28 |
| Floor | 1167.4 |
| Highest | 1667.4 (2026-06-01) |
| Min/Max +/- allowed | 85.2 |
Rapid rating
| Rating | 1688.7 |
| K-factor | 28 |
| Floor | 1188.7 |
| Highest | 1688.7 (2026-06-01) |
| Min/Max +/- allowed | 82.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1641.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1688.7 |
| K-factor | 28 |
| Floor | 1188.7 |
| Highest | 1688.7 (2026-06-01) |
| Min/Max +/- allowed | 82.6 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-02-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-02-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | South African Open Championship 2026 (U13 Boys) | Classical | 2026-07-02 | 2026-07-05 | Cape Town (WCT) | 7 | 1687.4 | 7 | 3.5 | 1502.1 | -41.1 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 WCSC PS Individual Championship (U13 Boys) | Standard | 2026-05-16 | 2026-05-17 | Overberg (WOS) | 6 | 1631.6 | 6 | 4 | 1672.3 | 6.8 | Details |
| 2 | CBC St John's Rapid 2026 (U14) | Rapid | 2026-04-18 | 2026-04-18 | Cape Town (WCT) | 6 | 1631.6 | 6 | 6 | 1713.1 | 10.7 | Details |
| 3 | Moja Chess Extravaganza 2026 (U12) | Standard | 2026-04-25 | 2026-04-26 | Cape Town (WCT) | 5 | 1631.6 | 5 | 4 | 1802.5 | 22.8 | Details |
| 4 | Cape Winelands Schools - Prestige 2026 (U13 Boys) | Standard | 2026-03-21 | 2026-03-21 | Cape Winelands (WCW) | 5 | 1578.5 | 5 | 4.5 | 1729.7 | 25.1 | Details |
| 5 | Cape Winelands Open Rapid 2026 (U14) | Rapid | 2026-03-14 | 2026-03-14 | Cape Winelands (WCW) | 6 | 1578.5 | 6 | 5 | 1753.4 | 18.8 | Details |
| 6 | Chess Elevation Series 3 2026 (Level 5) | Standard | 2026-02-20 | 2026-02-21 | Cape Town (WCT) | 5 | 1611.9 | 5 | 2 | 1434.4 | -17.4 | Details |
| 7 | Cape Winelands Schools - Primary Schools Trials 1 2026 (U13 Boys) | Standard | 2026-02-14 | 2026-02-14 | Cape Winelands (WCW) | 5 | 1611.9 | 5 | 5 | 1719.1 | 11.3 | Details |
| 8 | Marie Delport Memorial 2026 (U14 Boys) | Standard | 2026-01-31 | 2026-01-31 | Cape Winelands (WCW) | 5 | 1611.9 | 5 | 4 | 1588.6 | -2.3 | Details |
| 9 | Helderberg Chess Club Open 2026 (U13 Boys) | Standard | 2026-01-17 | 2026-01-17 | Cape Town (WCT) | 5 | 1605.9 | 5 | 3.5 | 1672.7 | 1.9 | Details |
| 10 | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U13 Boys) | Rapid | 2025-12-09 | 2025-12-09 | Cape Winelands (WCW) | 5 | 1544.6 | 5 | 4 | 1676.1 | 8.9 | Details |
| 11 | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U13) | Rapid | 2025-12-08 | 2025-12-08 | Cape Winelands (WCW) | 5 | 1544.6 | 5 | 4 | 1680.5 | 8.2 | Details |
| 12 | Kraaifontein Open 2025 (Junior Rapid U12) | Rapid | 2025-12-06 | 2025-12-06 | Cape Town (WCT) | 6 | 1544.6 | 6 | 5.5 | 1788.9 | 20.8 | Details |
| 13 | WCSC Brian Raubenheimer Development 2025 (U11 Boys) | Rapid | 2025-11-29 | 2025-11-29 | Cape Winelands (WCW) | 5 | 1544.6 | 5 | 5 | 1694.6 | 11.8 | Details |
| 14 | Paarl Boys' High School Chess Festival 2025 (Primary Schools) | Standard | 2025-10-17 | 2025-10-18 | Cape Winelands (WCW) | 6 | 1547.1 | 6 | 4 | 1663 | 13.6 | Details |
| 15 | UCT Open Chess Championship 2025 (U12) | Rapid | 2025-10-11 | 2025-10-11 | Cape Town (WCT) | 6 | 1547.1 | 6 | 4 | 1557.4 | 0.9 | Details |
| 16 | Kleinmond Chess Club Open 2025 (U12) | Rapid | 2025-08-30 | 2025-08-30 | Overberg (WOS) | 6 | 1345.2 | 6 | 5 | 1720 | 28.5 | Details |
| 17 | Curro Chess Open Rapid 2025 (U12) | Rapid | 2025-08-23 | 2025-08-23 | Cape Town (WCT) | 6 | 1345.2 | 6 | 4 | 1539.9 | 15.7 | Details |
| 18 | Stellenbosch Primary 2025 (U11) | Rapid | 2025-08-16 | 2025-08-16 | Cape Winelands (WCW) | 5 | 1345.2 | 5 | 5 | 1741.2 | 27.7 | Details |
| 19 | Cape Winelands Schools Development 2025 (U11 Boys) | Rapid | 2025-08-02 | 2025-08-02 | Cape Winelands (WCW) | 5 | 1345.2 | 5 | 5 | 1653.8 | 23.3 | Details |
| 20 | Cape Winelands Open 2025 (U12) | Standard | 2025-07-19 | 2025-07-19 | Cape Winelands (WCW) | 5 | 1326.7 | 5 | 2 | 1427 | 10.3 | Details |
| 21 | Cape Winelands Schools Prestige 2025 (U11 Boys) | Standard | 2025-03-08 | 2025-03-08 | Cape Winelands (WCW) | 5 | 1276.7 | 5 | 3 | 1381.6 | 11 | Details |
| 22 | Cape Winelands Schools - Trials 1 2025 (U11 Boys) | Standard | 2025-02-22 | 2025-02-22 | Cape Winelands (WCW) | 5 | 1188.3 | 5 | 4 | 1615 | 40.8 | Details |
| 23 | Marie Delport Memorial 2025 (U12 Boys) | Standard | 2025-01-25 | 2025-01-26 | Cape Winelands (WCW) | 6 | 1194.2 | 6 | 2.5 | 1147.3 | -5.5 | Details |
| 24 | Laerskool Welgemoed Rapid 2024 (U12) | Rapid | 2024-10-19 | 2024-10-19 | Cape Town (WCT) | 6 | 1206.1 | 6 | 2 | 1122.1 | -6.5 | Details |
| 25 | Stellenbosch Primary 2024 (U11) | Rapid | 2024-08-17 | 2024-08-17 | Cape Winelands (WCW) | 5 | 1162.9 | 5 | 4 | 1478.3 | 21.7 | Details |
| 26 | Cape Winelands Schools - Prestige 2024 (U11 Boys) | Standard | 2024-03-02 | 2024-03-02 | Cape Winelands (WCW) | 5 | 1197.4 | 5 | 1 | 1012.7 | -17.3 | Details |
| 27 | Cape Winelands Schools - PS Trials 1 2024 (U11 Boys) | Rapid | 2024-02-10 | 2024-02-10 | Cape Winelands (WCW) | 6 | 1200 | 6 | 3 | 1185.1 | -1.3 | Details |
Game statistics ( )
| Games | 7 |
| Wins | 3 |
| Draws | 1 |
| Losses | 3 |
| White | 3 |
| Black | 4 |
| White wins | 1 |
| Black wins | 2 |
| Score | 3.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1502.1 |
| Performance | 1502.1 |
Game statistics ()
| Games | 55 |
| Wins | 40 |
| Draws | 3 |
| Losses | 12 |
| White | 28 |
| Black | 27 |
| White wins | 20 |
| Black wins | 20 |
| Score | 41.5 |
| Percent | 75.5 |
| Dp | 216.4 |
| AOR | 1439.7 |
| Performance | 1656 |
Game statistics (History)
| Games | 153 |
| Wins | 105 |
| Draws | 7 |
| Losses | 41 |
| White | 75 |
| Black | 78 |
| White wins | 53 |
| Black wins | 52 |
| Score | 108.5 |
| Percent | 70.9 |
| Dp | 177.8 |
| AOR | 1379.3 |
| Performance | 1557.1 |
Rankings (Main)
| National | |
| Overall | 617 |
| Gender | 580 |
| Age group | 26 |
| Gender/Age | 24 |
| Provincial | |
| Overall | 192 |
| Gender | 179 |
| Age group | 9 |
| Gender/Age | 8 |
| Regional | |
| Overall | 19 |
| Gender | 14 |
| Age group | 2 |
| Gender/Age | 1 |
Rankings (Standard)
| National | |
| Overall | 662 |
| Gender | 620 |
| Age group | 32 |
| Gender/Age | 29 |
| Provincial | |
| Overall | 203 |
| Gender | 188 |
| Age group | 12 |
| Gender/Age | 10 |
| Regional | |
| Overall | 20 |
| Gender | 15 |
| Age group | 2 |
| Gender/Age | 1 |
Rankings (Rapid)
| National | |
| Overall | 89 |
| Gender | 89 |
| Age group | 3 |
| Gender/Age | 3 |
| Provincial | |
| Overall | 43 |
| Gender | 43 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 5 |
| Gender | 5 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 7 |
| Score | 3.5 |
| Percent | 50 |
| Aor | 1502.1 |
| Dp | 0 |
| Prat | 1502.1 |
Performance ()
| Games | 55 |
| Score | 41.5 |
| Percent | 75.5 |
| Aor | 1439.7 |
| Dp | 216.4 |
| Prat | 1656 |
Performance (12 months)
| Games | 110 |
| Score | 87 |
| Percent | 79.1 |
| Aor | 1415.7 |
| Dp | 247.3 |
| Prat | 1663 |
Performance (History)
| Games | 153 |
| Score | 108.5 |
| Percent | 70.9 |
| Aor | 1379.3 |
| Dp | 177.8 |
| Prat | 1557.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Kuypers, P (Parker) | 5 | 2 | 3 | Marie Delport Memorial 2026 (U14 Boys) | 2026 WCSC PS Individual Championship (U13 Boys) | Details |
| Overall | 2 | Bekker, T (Thian) | 5 | 2 | 3 | Cape Winelands Schools Development 2025 (U11 Boys) | Cape Winelands Schools - Prestige 2026 (U13 Boys) | Details |
| Overall | 3 | Manning, C (Callan) | 4 | 1 | 3 | Paarl Boys' High School Chess Festival 2025 (Primary Schools) | 2026 WCSC PS Individual Championship (U13 Boys) | Details |
| Overall | 4 | Faure, B (Brodie) | 4 | 3 | 1 | UCT Open Chess Championship 2025 (U12) | Helderberg Chess Club Open 2026 (U13 Boys) | Details |
| Overall | 5 | Roets, S (Sebastian) | 3 | 2 | 1 | Cape Winelands Schools - PS Trials 1 2024 (U11 Boys) | Cape Winelands Open Rapid 2026 (U14) | Details |
| Standard | 1 | Kuypers, P (Parker) | 4 | 2 | 2 | Marie Delport Memorial 2026 (U14 Boys) | 2026 WCSC PS Individual Championship (U13 Boys) | Details |
| Standard | 2 | Josephs, C (Connor) | 3 | 1 | 2 | Helderberg Chess Club Open 2026 (U13 Boys) | 2026 WCSC PS Individual Championship (U13 Boys) | Details |
| Standard | 3 | Calitz, S (Steyn) | 2 | 2 | 0 | Helderberg Chess Club Open 2026 (U13 Boys) | Chess Elevation Series 3 2026 (Level 5) | Details |
| Standard | 4 | Manning, C (Callan) | 2 | 1 | 1 | Paarl Boys' High School Chess Festival 2025 (Primary Schools) | 2026 WCSC PS Individual Championship (U13 Boys) | Details |
| Standard | 5 | Viljoen, A (Adrihan) | 2 | 1 | 1 | Marie Delport Memorial 2025 (U12 Boys) | Cape Winelands Schools - Trials 1 2025 (U11 Boys) | Details |
| Rapid | 1 | Faure, B (Brodie) | 3 | 2 | 1 | UCT Open Chess Championship 2025 (U12) | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U13 Boys) | Details |
| Rapid | 2 | Snyman, V (Van Zyl) | 3 | 2 | 1 | Kleinmond Chess Club Open 2025 (U12) | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U13 Boys) | Details |
| Rapid | 3 | Bekker, T (Thian) | 3 | 2 | 1 | Cape Winelands Schools Development 2025 (U11 Boys) | WCSC Brian Raubenheimer Development 2025 (U11 Boys) | Details |
| Rapid | 4 | Manning, C (Callan) | 2 | 0 | 2 | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U13) | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U13 Boys) | Details |
| Rapid | 5 | Botha, J (Jaco) | 2 | 1 | 1 | WCSC Brian Raubenheimer Development 2025 (U11 Boys) | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U13 Boys) | Details |