PLAYER PAGE
Alexander Marais
1150140699Cape Town (WCT)Personal
Main rating
| Rating | 1581 |
| K-factor | 32 |
| Floor | 1081 |
| Highest | 1581 (2026-02-28) |
| Min/Max +/- allowed | 96 |
| Rating Change () | |
| Games | 6 |
| Score | 3 |
| We | 4.27 |
| SWe | -1.08 |
| Temp +/- | -34.6 |
| Penalties | 0 |
| Weight perform | 1512.2 |
| Final +/- | -34.6 |
| New Rating () | |
| Rating | 1546.4 |
| K-factor | 32 |
| Floor | 1081 |
| Highest | 1581 (2026-02-28) |
| Min/Max +/- allowed | 96.4 |
Standard rating
| Rating | 1541.6 |
| K-factor | 32 |
| Floor | 1048.4 |
| Highest | 1548.4 (2025-04-01) |
| Min/Max +/- allowed | 100.9 |
| Rating Change () | |
| Games | 6 |
| Score | 3 |
| We | 3.96 |
| SWe | -0.96 |
| Temp +/- | -30.9 |
| Penalties | 0 |
| Weight perform | 1487.3 |
| Final +/- | -30.9 |
| New Rating () | |
| Rating | 1510.7 |
| K-factor | 32 |
| Floor | 1048.4 |
| Highest | 1548.4 (2025-04-01) |
| Min/Max +/- allowed | 100.9 |
Rapid rating
| Rating | 1551.3 |
| K-factor | 32 |
| Floor | 1054.8 |
| Highest | 1554.8 (2025-11-01) |
| Min/Max +/- allowed | 100 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1576.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1551.3 |
| K-factor | 32 |
| Floor | 1054.8 |
| Highest | 1554.8 (2025-11-01) |
| Min/Max +/- allowed | 100 |
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 | CT Metro Schools Individual Closed 2026 (U11 Boys) | Standard | 2026-03-07 | 2026-03-08 | Cape Town (WCT) | 6 | 1581 | 6 | 3 | 1399.6 | -34.6 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | CT Metro District East Schools Chess Individuals Trials 2026 (U11 Boys) | Standard | 2026-02-07 | 2026-02-08 | Cape Town (WCT) | 6 | 1560.5 | 6 | 5 | 1602.9 | 0 | Details |
| 2 | COGH 2026 (U12) | Rapid | 2026-01-31 | 2026-02-01 | Cape Town (WCT) | 6 | 1560.5 | 6 | 4.5 | 1676.7 | 0 | Details |
| 3 | Helderberg Chess Club Open 2026 (U11 Mixed) | Standard | 2026-01-17 | 2026-01-17 | Cape Town (WCT) | 5 | 1540.7 | 5 | 3 | 1566.1 | 0 | Details |
| 4 | Chess Elevation Series 1 2026 (Level 2B) | Rapid | 2026-01-07 | 2026-01-07 | Cape Town (WCT) | 6 | 1540.7 | 6 | 4.5 | 1659.6 | 0 | Details |
| 5 | 2025 Mzansi Inter Provincial Team Championships (U12 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1560.7 | 6 | 3 | 1452.9 | 0 | Details |
| 6 | Gordons Bay Primary Chess Championship 2025 (Open) | Rapid | 2025-10-25 | 2025-10-25 | Cape Town (WCT) | 5 | 1579.8 | 5 | 3 | 1415.4 | 0 | Details |
| 7 | Grant East Annual Primary School Invitational Chess Tournament 2025 (U11 Boys) | Standard | 2025-10-18 | 2025-10-18 | Cape Town (WCT) | 5 | 1543.4 | 5 | 4 | 1584.6 | 0 | Details |
| 8 | UCT Open Chess Championship 2025 (U10) | Rapid | 2025-10-11 | 2025-10-11 | Cape Town (WCT) | 6 | 1543.4 | 6 | 5 | 1794.7 | 0 | Details |
| 9 | Helderberg Chess Club Open 2025 (U11) | Standard | 2025-06-07 | 2025-06-07 | Cape Town (WCT) | 5 | 1527.3 | 5 | 4 | 1621.5 | 0 | Details |
| 10 | Cape Town Chess Junior League 2025 (U12) | Standard | 2025-05-10 | 2025-05-31 | Cape Town (WCT) | 6 | 1527.3 | 0 | 0 | 0 | 0 | Details |
| 11 | Western Cape Schools Individual Championship 2025 (U11 Boys) | Standard | 2025-05-17 | 2025-05-18 | Cape Winelands (WCW) | 6 | 1566.5 | 6 | 3 | 1355.3 | 0 | Details |
| 12 | South African Junior Closed Chess Championships 2025 (U10 Open) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1575.1 | 9 | 5 | 1544.9 | 0 | Details |
| 13 | Cape Town Open Chess Festival 2025 (U10) | Standard | 2025-03-22 | 2025-03-23 | Cape Town (WCT) | 6 | 1478.2 | 6 | 5 | 1639 | 0 | Details |
| 14 | Western Cape Closed 2025 (U12) | Standard | 2025-03-08 | 2025-03-09 | Cape Town (WCT) | 6 | 1478.2 | 6 | 5.5 | 1704.9 | 0 | Details |
| 15 | CT Metro Schools Individual Closed 2025 (U11 Open) | Standard | 2025-03-01 | 2025-03-02 | Cape Town (WCT) | 6 | 1478.2 | 6 | 4 | 1505.8 | 0 | Details |
| 16 | Cape of Good Hope Open 2025 (U10) | Rapid | 2025-02-22 | 2025-02-22 | Cape Town (WCT) | 6 | 1482.1 | 6 | 4 | 1491.3 | 0 | Details |
| 17 | CT Metro District East Schools Chess Individuals Trials 2025 (U11 Boys) | Standard | 2025-02-01 | 2025-02-02 | Cape Town (WCT) | 6 | 1482.1 | 6 | 4 | 1452.6 | 0 | Details |
| 18 | Helderberg Chess Club PS Development Tournament 2025 (U11 Boys) | Standard | 2025-01-25 | 2025-01-25 | Cape Town (WCT) | 5 | 1486.8 | 5 | 2.5 | 1449.1 | 0 | Details |
| 19 | Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates) | Classical | 2024-12-16 | 2024-12-19 | Capricorn (LCP) | 7 | 1415.4 | 7 | 6.5 | 1680.2 | 0 | Details |
| 20 | Helderberg Chess Club Open 2024 (B) | Standard | 2024-11-09 | 2024-11-10 | Cape Town (WCT) | 6 | 1455.2 | 6 | 3 | 1242 | 0 | Details |
| 21 | UCT Open Chess Championship 2024 (U10) | Rapid | 2024-10-12 | 2024-10-13 | Cape Town (WCT) | 6 | 1455.2 | 6 | 4 | 1453.3 | 0 | Details |
| 22 | Stellenbosch Primary 2024 (U9) | Rapid | 2024-08-17 | 2024-08-17 | Cape Winelands (WCW) | 5 | 1434.5 | 5 | 5 | 1622.2 | 0 | Details |
| 23 | CT Metro District East Top Schools Chess 2024 (U9 Mixed) | Standard | 2024-07-27 | 2024-07-28 | Cape Town (WCT) | 5 | 1445.4 | 5 | 3 | 1367.6 | 0 | Details |
| 24 | Cape Town Chess Federation Closed Chess Championships 2024 (U10) | Standard | 2024-06-15 | 2024-06-15 | Cape Town (WCT) | 5 | 1440.9 | 4 | 3 | 1476.9 | 0 | Details |
| 25 | Western Cape PS Individuals Championship 2024 (U9 Boys) | Standard | 2024-05-04 | 2024-05-05 | West Coast (WCU) | 6 | 1458.7 | 6 | 3.5 | 1360.3 | 0 | Details |
| 26 | Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) | Standard | 2024-03-02 | 2024-03-03 | Cape Town (WCT) | 6 | 1459 | 6 | 4 | 1455.3 | 0 | Details |
| 27 | Mary-Anne Bartels Closed Chess Tournament 2024 (U7+U9 Mixed) | Rapid | 2024-02-24 | 2024-02-24 | Cape Town (WCT) | 5 | 1330.4 | 5 | 5 | 1618.6 | 0 | Details |
| 28 | CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) | Standard | 2024-02-03 | 2024-02-03 | Cape Town (WCT) | 5 | 1330.4 | 5 | 5 | 1711.1 | 0 | Details |
| 29 | Cape of Good Hope Open Chess Tournament 2024 (U10) | Rapid | 2024-02-17 | 2024-02-17 | Cape Town (WCT) | 6 | 1330.4 | 6 | 4.5 | 1495.4 | 0 | Details |
| 30 | Kraaifontein Open 2023 (U10) | Rapid | 2023-12-09 | 2023-12-09 | Cape Town (WCT) | 6 | 1333.9 | 6 | 3.5 | 1309.3 | 0 | Details |
| 31 | Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed) | Rapid | 2023-11-04 | 2023-11-04 | Cape Town (WCT) | 6 | 1297.4 | 6 | 5 | 1536.7 | 0 | Details |
| 32 | Western Cape Closed Championship 2023 (U10) | Rapid | 2023-09-23 | 2023-09-23 | Cape Town (WCT) | 6 | 1296 | 6 | 3 | 1304.1 | 0 | Details |
| 33 | Stellenbosch Primary Chess Tournament 2023 (U10) | Rapid | 2023-08-19 | 2023-08-19 | Cape Winelands (WCW) | 6 | 1286.5 | 6 | 4 | 1348.2 | 0 | Details |
| 34 | Cape Winelands Open 2023 (U10) | Standard | 2023-07-23 | 2023-07-23 | Cape Winelands (WCW) | 5 | 1272.7 | 5 | 3 | 1356.1 | 0 | Details |
| 35 | WP Closed 2023 (U10) | Standard | 2023-06-17 | 2023-06-17 | Cape Town (WCT) | 5 | 1240 | 5 | 3 | 1400.4 | 0 | Details |
| 36 | GPCA Rapid 2023 (U10) | Rapid | 2023-06-24 | 2023-06-24 | Cape Town (WCT) | 7 | 1240 | 7 | 4 | 1253.5 | 0 | Details |
| 37 | Western Cape PS Individuals 2023 (U9 Boys) | Standard | 2023-05-05 | 2023-05-06 | Cape Town (WCT) | 6 | 1247.5 | 6 | 3 | 1242.5 | 0 | Details |
| 38 | Steinitz Open 2023 (U10) | Rapid | 2023-05-27 | 2023-05-27 | Cape Town (WCT) | 5 | 1247.5 | 5 | 2 | 1131.2 | 0 | Details |
| 39 | Rhenish Primary Tournament 2023 (U10) | Rapid | 2023-05-13 | 2023-05-13 | Cape Winelands (WCW) | 5 | 1247.5 | 5 | 3 | 1297.8 | 0 | Details |
| 40 | Cape Town Open 2023 (U10) | Rapid | 2023-03-25 | 2023-03-25 | Cape Town (WCT) | 6 | 1257.2 | 0 | 0 | 0 | 0 | Details |
| 41 | Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys) | Rapid | 2023-03-04 | 2023-03-04 | Cape Town (WCT) | 5 | 1257.2 | 5 | 2 | 1174.3 | 0 | Details |
| 42 | Mary-Anne Bartels Chess Tournament 2023 (U7+U9) | Rapid | 2023-02-21 | 2023-02-21 | Cape Town (WCT) | 5 | 1249.2 | 5 | 4 | 1462.5 | 0 | Details |
| 43 | Laerskool Welgemoed Rapid 2023 (U10) | Rapid | 2023-02-11 | 2023-02-11 | Cape Town (WCT) | 6 | 1249.2 | 6 | 3 | 1278.3 | 0 | Details |
| 44 | District East Schools Chess Individual Trials 2023 (U7+U9 Mixed) | Rapid | 2023-02-04 | 2023-02-04 | Cape Town (WCT) | 5 | 1249.2 | 5 | 2 | 1067.9 | 0 | Details |
| 45 | Stellenbosch Primary 2022 (U7) | Rapid | 2022-08-13 | 2022-08-13 | Cape Winelands (WCW) | 6 | 1208.4 | 6 | 5 | 1475.9 | 0 | Details |
| 46 | Rhenish Primary Tournament 2022 (U10) | Rapid | 2022-05-14 | 2022-05-14 | Cape Winelands (WCW) | 5 | 1200 | 5 | 3 | 1266.5 | 0 | Details |
Game statistics ( )
| Games | 6 |
| Wins | 3 |
| Draws | 0 |
| Losses | 3 |
| White | 3 |
| Black | 3 |
| White wins | 1 |
| Black wins | 2 |
| Score | 3 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1399.6 |
| Performance | 1399.6 |
Game statistics ()
| Games | 29 |
| Wins | 19 |
| Draws | 2 |
| Losses | 8 |
| White | 15 |
| Black | 14 |
| White wins | 11 |
| Black wins | 8 |
| Score | 20 |
| Percent | 69 |
| Dp | 161.2 |
| AOR | 1420.3 |
| Performance | 1581.5 |
Game statistics (History)
| Games | 256 |
| Wins | 166 |
| Draws | 10 |
| Losses | 80 |
| White | 128 |
| Black | 128 |
| White wins | 77 |
| Black wins | 89 |
| Score | 171 |
| Percent | 66.8 |
| Dp | 142.8 |
| AOR | 1311.6 |
| Performance | 1454.4 |
Rankings (Main)
| National | |
| Overall | 1088 |
| Gender | 999 |
| Age group | 51 |
| Gender/Age | 45 |
| Provincial | |
| Overall | 323 |
| Gender | 296 |
| Age group | 12 |
| Gender/Age | 11 |
| Regional | |
| Overall | 213 |
| Gender | 198 |
| Age group | 9 |
| Gender/Age | 8 |
Rankings (Standard)
| National | |
| Overall | 1284 |
| Gender | 1153 |
| Age group | 77 |
| Gender/Age | 67 |
| Provincial | |
| Overall | 366 |
| Gender | 324 |
| Age group | 22 |
| Gender/Age | 20 |
| Regional | |
| Overall | 236 |
| Gender | 213 |
| Age group | 13 |
| Gender/Age | 12 |
Rankings (Rapid)
| National | |
| Overall | 214 |
| Gender | 206 |
| Age group | 9 |
| Gender/Age | 8 |
| Provincial | |
| Overall | 106 |
| Gender | 101 |
| Age group | 8 |
| Gender/Age | 7 |
| Regional | |
| Overall | 68 |
| Gender | 66 |
| Age group | 6 |
| Gender/Age | 6 |
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 | 6 |
| Score | 3 |
| Percent | 50 |
| Aor | 1399.6 |
| Dp | 0 |
| Prat | 1399.6 |
Performance ()
| Games | 29 |
| Score | 20 |
| Percent | 69 |
| Aor | 1420.3 |
| Dp | 161.2 |
| Prat | 1581.5 |
Performance (12 months)
| Games | 77 |
| Score | 52 |
| Percent | 67.5 |
| Aor | 1413.7 |
| Dp | 149 |
| Prat | 1562.7 |
Performance (History)
| Games | 256 |
| Score | 171 |
| Percent | 66.8 |
| Aor | 1311.6 |
| Dp | 142.8 |
| Prat | 1454.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Van Der Merwe, S (Schalk Wolf) | 7 | 5 | 2 | Laerskool Welgemoed Rapid 2023 (U10) | UCT Open Chess Championship 2025 (U10) | Details |
| Overall | 2 | Kruger, J (Josua Baruch) | 5 | 3 | 2 | Rhenish Primary Tournament 2023 (U10) | CT Metro District East Schools Chess Individuals Trials 2026 (U11 Boys) | Details |
| Overall | 3 | Klopper, B (Ben) | 5 | 2 | 3 | GPCA Rapid 2023 (U10) | Helderberg Chess Club Open 2025 (U11) | Details |
| Overall | 4 | Zhang, M (Ming Xuan Jesse) | 5 | 2 | 3 | UCT Open Chess Championship 2024 (U10) | Chess Elevation Series 1 2026 (Level 2B) | Details |
| Overall | 5 | Lin, J (Junming) | 5 | 4 | 1 | Cape of Good Hope Open Chess Tournament 2024 (U10) | COGH 2026 (U12) | Details |
| Standard | 1 | Nel, J (Joshua) | 5 | 3 | 2 | CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) | Helderberg Chess Club Open 2026 (U11 Mixed) | Details |
| Standard | 2 | Zwartz, Z (Zeke) | 3 | 1 | 2 | Western Cape PS Individuals Championship 2024 (U9 Boys) | Helderberg Chess Club Open 2026 (U11 Mixed) | Details |
| Standard | 3 | Klopper, B (Ben) | 3 | 1 | 2 | Cape Winelands Open 2023 (U10) | Helderberg Chess Club Open 2025 (U11) | Details |
| Standard | 4 | Lin, J (Junming) | 3 | 2 | 1 | Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) | Cape Town Open Chess Festival 2025 (U10) | Details |
| Standard | 5 | Kruger, J (Josua Baruch) | 3 | 2 | 1 | CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) | CT Metro District East Schools Chess Individuals Trials 2026 (U11 Boys) | Details |
| Rapid | 1 | Van Der Merwe, S (Schalk Wolf) | 5 | 3 | 2 | Laerskool Welgemoed Rapid 2023 (U10) | UCT Open Chess Championship 2025 (U10) | Details |
| Rapid | 2 | Zhang, M (Ming Xuan Jesse) | 3 | 1 | 2 | UCT Open Chess Championship 2024 (U10) | Chess Elevation Series 1 2026 (Level 2B) | Details |
| Rapid | 3 | Smith, W (Willow) | 2 | 2 | 0 | GPCA Rapid 2023 (U10) | Cape of Good Hope Open 2025 (U10) | Details |
| Rapid | 4 | Webb, P (Paul) | 2 | 0 | 2 | Mary-Anne Bartels Chess Tournament 2023 (U7+U9) | Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys) | Details |
| Rapid | 5 | Kruger, J (Josua Baruch) | 2 | 1 | 1 | Rhenish Primary Tournament 2023 (U10) | Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed) | Details |