PLAYER PAGE
Stefan Prins
1100140763Cape Winelands (WCW)Personal
Main rating
| Rating | 1344.2 |
| K-factor | 36 |
| Floor | 836.3 |
| Highest | 1348.8 (2023-02-01) |
| Min/Max +/- allowed | 134 |
| Rating Change () | |
| Games | 12 |
| Score | 8 |
| We | 5.84 |
| SWe | 1.75 |
| Temp +/- | 63.1 |
| Penalties | 0 |
| Weight perform | 1379.8 |
| Final +/- | +63.1 |
| New Rating () | |
| Rating | 1407.3 |
| K-factor | 32 |
| Floor | 907.3 |
| Highest | 1407.3 (2026-07-01) |
| Min/Max +/- allowed | 123.4 |
Standard rating
| Rating | 1328.2 |
| K-factor | 36 |
| Floor | 867.3 |
| Highest | 1625.2 (2023-02-01) |
| Min/Max +/- allowed | 90.5 |
| Rating Change () | |
| Games | 7 |
| Score | 3.5 |
| We | 2.7 |
| SWe | 0.8 |
| Temp +/- | 28.8 |
| Penalties | 0 |
| Weight perform | 1291.5 |
| Final +/- | +28.8 |
| New Rating () | |
| Rating | 1357 |
| K-factor | 36 |
| Floor | 867.3 |
| Highest | 1625.2 (2023-02-01) |
| Min/Max +/- allowed | 90.5 |
Rapid rating
| Rating | 1356.9 |
| K-factor | 36 |
| Floor | 856.9 |
| Highest | 1356.9 (2026-06-01) |
| Min/Max +/- allowed | 132.6 |
| Rating Change () | |
| Games | 5 |
| Score | 4.5 |
| We | 3.66 |
| SWe | 0.84 |
| Temp +/- | 30.2 |
| Penalties | 0 |
| Weight perform | 1425.7 |
| Final +/- | +68.9 |
| New Rating () | |
| Rating | 1425.7 |
| K-factor | 32 |
| Floor | 925.7 |
| Highest | 1425.7 (2026-07-01) |
| Min/Max +/- allowed | 120.2 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Chess Elevation Series - July 2026 (Level 3) | Rapid | 2026-07-18 | 2026-07-18 | Cape Town (WCT) | 5 | 1344.2 | 5 | 4.5 | 1568.7 | 34.6 | Details |
| 2 | South African Open Championship 2026 (U17 Boys) | Classical | 2026-07-02 | 2026-07-05 | Cape Town (WCT) | 7 | 1344.2 | 7 | 3.5 | 1414.1 | 28.5 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Chess Elevation Series 6 2026 (Level 3) | Rapid | 2026-05-23 | 2026-05-23 | Cape Town (WCT) | 5 | 1321.3 | 5 | 4 | 1467.5 | 22.9 | Details |
| 2 | Cape Winelands Schools - Prestige 2026 (U18 Boys) | Standard | 2026-03-21 | 2026-03-21 | Cape Winelands (WCW) | 5 | 1324 | 5 | 1.5 | 1255.8 | -19.1 | Details |
| 3 | Cape Winelands Open Rapid 2026 (Intermediate) | Rapid | 2026-03-14 | 2026-03-14 | Cape Winelands (WCW) | 6 | 1324 | 6 | 3 | 1214 | -13.1 | Details |
| 4 | Cape Winelands Schools - High School Trials 1 2026 (U18 Boys) | Standard | 2026-02-28 | 2026-02-28 | Cape Winelands | 5 | 1324 | 5 | 4 | 1497.7 | 29.4 | Details |
| 5 | Hoërskool Stellenbosch Graderingstoernooi 2026 (U15+U20) | Rapid | 2026-02-14 | 2026-02-14 | Cape Winelands (WCW) | 5 | 1298.1 | 5 | 5 | 1659.1 | 22.6 | Details |
| 6 | Kraaifontein Open 2025 (Rapid Open) | Rapid | 2025-12-07 | 2025-12-07 | Cape Town (WCT) | 6 | 1301 | 6 | 2 | 1195.2 | -9.7 | Details |
| 7 | Cape Winelands Open 2025 (Intermediate) | Standard | 2025-07-19 | 2025-07-20 | Cape Winelands (WCW) | 6 | 1303.6 | 6 | 3 | 1196.5 | -13.1 | Details |
| 8 | Cape Town Open Chess Festival 2025 (C) | Standard | 2025-03-22 | 2025-03-23 | Cape Town (WCT) | 6 | 1325.6 | 6 | 2.5 | 1200.2 | -16.5 | Details |
| 9 | Cape Winelands Schools Prestige 2025 (U15 Boys) | Standard | 2025-03-08 | 2025-03-08 | Cape Winelands (WCW) | 5 | 1325.6 | 5 | 3 | 1344.7 | 2.7 | Details |
| 10 | Cape Winelands Schools - Trials 1 2025 (U15 Boys) | Standard | 2025-02-08 | 2025-02-08 | Cape Winelands (WCW) | 5 | 1300.1 | 5 | 3 | 1438.4 | 14.1 | Details |
| 11 | 2025 Kraaifontein Open Chess Championships (Advanced) | Standard | 2025-01-04 | 2025-01-05 | Cape Town (WCT) | 6 | 1293.5 | 6 | 2 | 1283.5 | -1.4 | Details |
| 12 | Kingsway Chess Open 2024 (U14) | Rapid | 2024-09-14 | 2024-09-14 | Overberg (WOS) | 6 | 1294.2 | 6 | 4 | 1419.4 | 8.3 | Details |
| 13 | Kleinmond Chess Club Open 2024 (Advanced) | Rapid | 2024-09-07 | 2024-09-07 | Overberg (WOS) | 6 | 1294.2 | 6 | 2 | 1179.3 | -8.7 | Details |
| 14 | South African Open Chess Championship 2024 (C) | Standard | 2024-07-04 | 2024-07-07 | Ethekwini (KED) | 7 | 1289.8 | 7 | 3 | 1302.1 | 2.4 | Details |
| 15 | Steinitz Chess Festival 2024 (Open Rapid) | Rapid | 2024-05-11 | 2024-05-11 | Cape Town (WCT) | 6 | 1308.6 | 6 | 2 | 1184.2 | -10.5 | Details |
| 16 | Strategize to Win 2024 (F) | Standard | 2024-04-13 | 2024-04-14 | Cape Town (WCT) | 5 | 1265.7 | 5 | 4 | 1505.2 | 23.9 | Details |
| 17 | Cape Town Open Chess Championship 2024 (Intermediate) | Standard | 2024-03-16 | 2024-03-17 | Cape Town (WCT) | 6 | 1327.3 | 5 | 0.5 | 964.3 | -36.7 | Details |
| 18 | Cape Winelands Schools - Prestige 2024 (U15 Boys) | Standard | 2024-03-02 | 2024-03-02 | Cape Winelands (WCW) | 5 | 1327.3 | 5 | 3 | 1343.5 | 2.3 | Details |
| 19 | Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) | Rapid | 2024-02-17 | 2024-02-17 | Cape Winelands (WCW) | 6 | 1336.3 | 6 | 3 | 1283.3 | -4.9 | Details |
| 20 | Chas Everitt and MHI Attorneys Rapid 2023 (U14) | Rapid | 2023-11-04 | 2023-11-04 | Cape Town (WCT) | 6 | 1322.3 | 6 | 4 | 1435.7 | 7.8 | Details |
| 21 | Stellenbosch Primary Chess Tournament 2023 (U14) | Rapid | 2023-08-19 | 2023-08-19 | Cape Winelands (WCW) | 6 | 1311.3 | 6 | 4 | 1395.8 | 6.3 | Details |
| 22 | Cape Winelands Open 2023 (U14) | Standard | 2023-07-23 | 2023-07-23 | Cape Winelands (WCW) | 5 | 1228 | 5 | 4.5 | 1688.3 | 46.5 | Details |
| 23 | Rhenish Primary Tournament 2023 (U14) | Rapid | 2023-05-13 | 2023-05-13 | Cape Winelands (WCW) | 6 | 1237.1 | 5 | 2 | 1170.8 | -5.2 | Details |
| 24 | Cape Town Open 2023 (U14) | Rapid | 2023-03-25 | 2023-03-25 | Cape Town (WCT) | 6 | 1248.5 | 5 | 2 | 1148.3 | -6 | Details |
| 25 | Cape Winelands Schools Prestige 2023 (U13 Boys) | Standard | 2023-03-11 | 2023-03-11 | Cape Winelands (WCW) | 5 | 1248.5 | 5 | 2.5 | 1235.6 | -0.5 | Details |
| 26 | Cape Winelands Schools Chess - Trials 1 2023 (U13 Boys) | Standard | 2023-02-18 | 2023-02-18 | Cape Winelands (WCW) | 5 | 1162.8 | 5 | 4 | 1611.1 | 42.8 | Details |
| 27 | Rhenish Primary Tournament 2022 (U14) | Rapid | 2022-05-14 | 2022-05-14 | Cape Winelands (WCW) | 5 | 1200 | 5 | 1 | 931.6 | -18.6 | Details |
Game statistics ( )
| Games | 12 |
| Wins | 7 |
| Draws | 2 |
| Losses | 3 |
| White | 5 |
| Black | 7 |
| White wins | 4 |
| Black wins | 3 |
| Score | 8 |
| Percent | 66.7 |
| Dp | 141.7 |
| AOR | 1336.9 |
| Performance | 1478.6 |
Game statistics ()
| Games | 38 |
| Wins | 24 |
| Draws | 3 |
| Losses | 11 |
| White | 19 |
| Black | 19 |
| White wins | 15 |
| Black wins | 9 |
| Score | 25.5 |
| Percent | 67.1 |
| Dp | 145.4 |
| AOR | 1286.9 |
| Performance | 1432.3 |
Game statistics (History)
| Games | 160 |
| Wins | 83 |
| Draws | 7 |
| Losses | 70 |
| White | 80 |
| Black | 80 |
| White wins | 45 |
| Black wins | 38 |
| Score | 86.5 |
| Percent | 54.1 |
| Dp | 34.5 |
| AOR | 1291 |
| Performance | 1325.6 |
Rankings (Main)
| National | |
| Overall | 4982 |
| Gender | 4130 |
| Age group | 748 |
| Gender/Age | 607 |
| Provincial | |
| Overall | 1533 |
| Gender | 1208 |
| Age group | 209 |
| Gender/Age | 157 |
| Regional | |
| Overall | 221 |
| Gender | 161 |
| Age group | 37 |
| Gender/Age | 22 |
Rankings (Standard)
| National | |
| Overall | 4887 |
| Gender | 4021 |
| Age group | 777 |
| Gender/Age | 629 |
| Provincial | |
| Overall | 1436 |
| Gender | 1113 |
| Age group | 204 |
| Gender/Age | 156 |
| Regional | |
| Overall | 209 |
| Gender | 151 |
| Age group | 35 |
| Gender/Age | 22 |
Rankings (Rapid)
| National | |
| Overall | 1303 |
| Gender | 1111 |
| Age group | 165 |
| Gender/Age | 144 |
| Provincial | |
| Overall | 585 |
| Gender | 492 |
| Age group | 87 |
| Gender/Age | 73 |
| Regional | |
| Overall | 86 |
| Gender | 69 |
| Age group | 19 |
| Gender/Age | 16 |
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 | 12 |
| Score | 8 |
| Percent | 66.7 |
| Aor | 1336.9 |
| Dp | 141.7 |
| Prat | 1478.6 |
Performance ()
| Games | 38 |
| Score | 25.5 |
| Percent | 67.1 |
| Aor | 1286.9 |
| Dp | 145.4 |
| Prat | 1432.3 |
Performance (12 months)
| Games | 44 |
| Score | 27.5 |
| Percent | 62.5 |
| Aor | 1293.7 |
| Dp | 106.2 |
| Prat | 1400 |
Performance (History)
| Games | 160 |
| Score | 86.5 |
| Percent | 54.1 |
| Aor | 1291 |
| Dp | 34.5 |
| Prat | 1325.6 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Sobada, A (Anelisa) | 2 | 1 | 1 | Cape Town Open Chess Championship 2024 (Intermediate) | Cape Town Open Chess Festival 2025 (C) | Details |
| Overall | 2 | Radloff, H (Hunther) | 2 | 1 | 1 | Cape Winelands Schools Prestige 2023 (U13 Boys) | Cape Winelands Schools - Trials 1 2025 (U15 Boys) | Details |
| Overall | 3 | Toerien, W (William) | 2 | 1 | 1 | Cape Winelands Schools - Trials 1 2025 (U15 Boys) | Cape Winelands Schools Prestige 2025 (U15 Boys) | Details |
| Overall | 4 | Small, Q (Quade) | 2 | 2 | 0 | Cape Winelands Schools Chess - Trials 1 2023 (U13 Boys) | Cape Winelands Schools Prestige 2025 (U15 Boys) | Details |
| Overall | 5 | Cupido, C (Caylah) | 2 | 1 | 1 | Cape Winelands Open 2023 (U14) | 2025 Kraaifontein Open Chess Championships (Advanced) | Details |
| Standard | 1 | Sobada, A (Anelisa) | 2 | 1 | 1 | Cape Town Open Chess Championship 2024 (Intermediate) | Cape Town Open Chess Festival 2025 (C) | Details |
| Standard | 2 | Cupido, C (Caylah) | 2 | 1 | 1 | Cape Winelands Open 2023 (U14) | 2025 Kraaifontein Open Chess Championships (Advanced) | Details |
| Standard | 3 | Small, Q (Quade) | 2 | 2 | 0 | Cape Winelands Schools Chess - Trials 1 2023 (U13 Boys) | Cape Winelands Schools Prestige 2025 (U15 Boys) | Details |
| Standard | 4 | Radloff, H (Hunther) | 2 | 1 | 1 | Cape Winelands Schools Prestige 2023 (U13 Boys) | Cape Winelands Schools - Trials 1 2025 (U15 Boys) | Details |
| Standard | 5 | Toerien, W (William) | 2 | 1 | 1 | Cape Winelands Schools - Trials 1 2025 (U15 Boys) | Cape Winelands Schools Prestige 2025 (U15 Boys) | Details |
| Rapid | 1 | Kirthan, V (Vajra) | 2 | 1 | 1 | Cape Town Open 2023 (U14) | Kingsway Chess Open 2024 (U14) | Details |