PLAYER PAGE
Alexander Marais
1150140699Cape Town (WCT)Personal
Main rating
| Rating | 1517.3 |
| K-factor | 32 |
| Floor | 1081 |
| Highest | 1581 (2026-02-28) |
| Min/Max +/- allowed | 96 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 3.46 |
| SWe | 0.33 |
| Temp +/- | 10.5 |
| Penalties | 0 |
| Weight perform | 1434.3 |
| Final +/- | +10.5 |
| New Rating () | |
| Rating | 1527.8 |
| K-factor | 32 |
| Floor | 1081 |
| Highest | 1581 (2026-02-28) |
| Min/Max +/- allowed | 96.4 |
Standard rating
| Rating | 1514.8 |
| K-factor | 32 |
| Floor | 1048.4 |
| Highest | 1548.4 (2025-04-01) |
| Min/Max +/- allowed | 100.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1434 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1514.8 |
| K-factor | 32 |
| Floor | 1048.4 |
| Highest | 1548.4 (2025-04-01) |
| Min/Max +/- allowed | 100.9 |
Rapid rating
| Rating | 1539 |
| K-factor | 32 |
| Floor | 1095.5 |
| Highest | 1595.5 (2026-04-01) |
| Min/Max +/- allowed | 94.4 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 3.9 |
| SWe | 0.1 |
| Temp +/- | 3.3 |
| Penalties | 0 |
| Weight perform | 1512.9 |
| Final +/- | +3.3 |
| New Rating () | |
| Rating | 1542.3 |
| K-factor | 32 |
| Floor | 1095.5 |
| Highest | 1595.5 (2026-04-01) |
| Min/Max +/- allowed | 94.4 |
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 | Grand East Annual Primary School Invetational Chess Tournament 2026 (U11 Boys) | Rapid | 2026-10-10 | 2026-10-10 | Cape Town (WCT) | 5 | 1517.3 | 5 | 4 | 1615 | 10.5 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Stellenbosch Primary 2026 (U11) | Rapid | 2026-08-22 | 2026-08-22 | Cape Winelands (WCW) | 5 | 1517.3 | 5 | 5 | 1616.4 | 15.9 | Details |
| 2 | CT PS District East Top Schools 2026 (U11 Mixed) | Standard | 2026-08-01 | 2026-08-02 | Cape Town (WCT) | 6 | 1517.3 | 5 | 2.5 | 1376.4 | -12.3 | Details |
| 3 | African Chess Academy Invitational 2026 (U12+U14 Open) | Rapid | 2026-07-18 | 2026-07-18 | Cape Town (WCT) | 6 | 1556.1 | 6 | 3 | 1249.4 | -41.4 | Details |
| 4 | South African Open Championship 2026 (U11 Boys) | Classical | 2026-07-02 | 2026-07-05 | Cape Town (WCT) | 7 | 1556.1 | 7 | 4 | 1556.6 | -1 | Details |
| 5 | CTCF Open Championship 2026 (U12) | Classical | 2026-06-13 | 2026-06-14 | Cape Town (WCT) | 6 | 1573.7 | 6 | 4.5 | 1492.8 | -17.6 | Details |
| 6 | Moja Chess Extravaganza 2026 (U12) | Standard | 2026-04-25 | 2026-04-26 | Cape Town (WCT) | 5 | 1560.3 | 5 | 3.5 | 1651.3 | 13.4 | Details |
| 7 | Mary-Anne Bartels Closed Chess Tournament 2026 (U11 Boys) | Rapid | 2026-03-14 | 2026-03-14 | Cape Town (WCT) | 5 | 1546.4 | 5 | 5 | 1657.6 | 13.8 | Details |
| 8 | 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 |
| 9 | 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 | 3.5 | Details |
| 10 | COGH 2026 (U12) | Rapid | 2026-01-31 | 2026-02-01 | Cape Town (WCT) | 6 | 1560.5 | 6 | 4.5 | 1676.7 | 4.5 | Details |
| 11 | Helderberg Chess Club Open 2026 (U11 Mixed) | Standard | 2026-01-17 | 2026-01-17 | Cape Town (WCT) | 5 | 1540.7 | 5 | 3 | 1566.1 | 1 | Details |
| 12 | 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 | 1.7 | Details |
| 13 | 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 | -12.4 | Details |
| 14 | Gordons Bay Primary Chess Championship 2025 (Open) | Rapid | 2025-10-25 | 2025-10-25 | Cape Town (WCT) | 5 | 1579.8 | 5 | 3 | 1415.4 | -11.9 | Details |
| 15 | 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 | 3.5 | Details |
| 16 | UCT Open Chess Championship 2025 (U10) | Rapid | 2025-10-11 | 2025-10-11 | Cape Town (WCT) | 6 | 1543.4 | 6 | 5 | 1794.7 | 19.2 | Details |
| 17 | Helderberg Chess Club Open 2025 (U11) | Standard | 2025-06-07 | 2025-06-07 | Cape Town (WCT) | 5 | 1527.3 | 5 | 4 | 1621.5 | 10.1 | Details |
| 18 | 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 |
| 19 | 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 | -24.6 | Details |
| 20 | 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 | -5.4 | Details |
| 21 | Cape Town Open Chess Festival 2025 (U10) | Standard | 2025-03-22 | 2025-03-23 | Cape Town (WCT) | 6 | 1478.2 | 6 | 5 | 1639 | 18.9 | Details |
| 22 | Western Cape Closed 2025 (U12) | Standard | 2025-03-08 | 2025-03-09 | Cape Town (WCT) | 6 | 1478.2 | 6 | 5.5 | 1704.9 | 30.2 | Details |
| 23 | 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 | 3.4 | Details |
| 24 | Cape of Good Hope Open 2025 (U10) | Rapid | 2025-02-22 | 2025-02-22 | Cape Town (WCT) | 6 | 1482.1 | 6 | 4 | 1491.3 | 0.8 | Details |
| 25 | 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 | -3.3 | Details |
| 26 | 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 | -3 | Details |
| 27 | 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 | 44.6 | Details |
| 28 | Helderberg Chess Club Open 2024 (B) | Standard | 2024-11-09 | 2024-11-10 | Cape Town (WCT) | 6 | 1455.2 | 6 | 3 | 1242 | -24.9 | Details |
| 29 | 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 |
| 30 | Stellenbosch Primary 2024 (U9) | Rapid | 2024-08-17 | 2024-08-17 | Cape Winelands (WCW) | 5 | 1434.5 | 5 | 5 | 1622.2 | 13 | Details |
| 31 | 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 | -6.8 | Details |
| 32 | 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 | 2.8 | Details |
| 33 | 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 | -11.1 | Details |
| 34 | 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 | -0.2 | Details |
| 35 | 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 | 21.1 | Details |
| 36 | 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 | 36.5 | Details |
| 37 | 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 | 14.1 | Details |
| 38 | Kraaifontein Open 2023 (U10) | Rapid | 2023-12-09 | 2023-12-09 | Cape Town (WCT) | 6 | 1333.9 | 6 | 3.5 | 1309.3 | -2.1 | Details |
| 39 | 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 | 20.4 | Details |
| 40 | Western Cape Closed Championship 2023 (U10) | Rapid | 2023-09-23 | 2023-09-23 | Cape Town (WCT) | 6 | 1296 | 6 | 3 | 1304.1 | 0.7 | Details |
| 41 | Stellenbosch Primary Chess Tournament 2023 (U10) | Rapid | 2023-08-19 | 2023-08-19 | Cape Winelands (WCW) | 6 | 1286.5 | 6 | 4 | 1348.2 | 5.3 | Details |
| 42 | Cape Winelands Open 2023 (U10) | Standard | 2023-07-23 | 2023-07-23 | Cape Winelands (WCW) | 5 | 1272.7 | 5 | 3 | 1356.1 | 7.9 | Details |
| 43 | WP Closed 2023 (U10) | Standard | 2023-06-17 | 2023-06-17 | Cape Town (WCT) | 5 | 1240 | 5 | 3 | 1400.4 | 16.3 | Details |
| 44 | GPCA Rapid 2023 (U10) | Rapid | 2023-06-24 | 2023-06-24 | Cape Town (WCT) | 7 | 1240 | 7 | 4 | 1253.5 | 1.7 | Details |
| 45 | Western Cape PS Individuals 2023 (U9 Boys) | Standard | 2023-05-05 | 2023-05-06 | Cape Town (WCT) | 6 | 1247.5 | 6 | 3 | 1242.5 | -0.7 | Details |
| 46 | Steinitz Open 2023 (U10) | Rapid | 2023-05-27 | 2023-05-27 | Cape Town (WCT) | 5 | 1247.5 | 5 | 2 | 1131.2 | -6.8 | Details |
| 47 | Rhenish Primary Tournament 2023 (U10) | Rapid | 2023-05-13 | 2023-05-13 | Cape Winelands (WCW) | 5 | 1247.5 | 5 | 3 | 1297.8 | 3.1 | Details |
| 48 | Cape Town Open 2023 (U10) | Rapid | 2023-03-25 | 2023-03-25 | Cape Town (WCT) | 6 | 1257.2 | 0 | 0 | 0 | 0 | Details |
| 49 | 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 | -5.4 | Details |
| 50 | 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 | 15.7 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 4 |
| Draws | 0 |
| Losses | 1 |
| White | 3 |
| Black | 2 |
| White wins | 2 |
| Black wins | 2 |
| Score | 4 |
| Percent | 80 |
| Dp | 255 |
| AOR | 1360 |
| Performance | 1615 |
Game statistics ()
| Games | 73 |
| Wins | 49 |
| Draws | 5 |
| Losses | 19 |
| White | 39 |
| Black | 34 |
| White wins | 28 |
| Black wins | 21 |
| Score | 51.5 |
| Percent | 70.5 |
| Dp | 174.7 |
| AOR | 1370.5 |
| Performance | 1545.1 |
Game statistics (History)
| Games | 300 |
| Wins | 196 |
| Draws | 13 |
| Losses | 91 |
| White | 152 |
| Black | 148 |
| White wins | 94 |
| Black wins | 102 |
| Score | 202.5 |
| Percent | 67.5 |
| Dp | 148.8 |
| AOR | 1315.5 |
| Performance | 1464.2 |
Rankings (Main)
| National | |
| Overall | 1804 |
| Gender | 1594 |
| Age group | 143 |
| Gender/Age | 116 |
| Provincial | |
| Overall | 543 |
| Gender | 467 |
| Age group | 48 |
| Gender/Age | 35 |
| Regional | |
| Overall | 316 |
| Gender | 281 |
| Age group | 24 |
| Gender/Age | 20 |
Rankings (Standard)
| National | |
| Overall | 1664 |
| Gender | 1457 |
| Age group | 144 |
| Gender/Age | 118 |
| Provincial | |
| Overall | 475 |
| Gender | 402 |
| Age group | 46 |
| Gender/Age | 35 |
| Regional | |
| Overall | 282 |
| Gender | 249 |
| Age group | 23 |
| Gender/Age | 20 |
Rankings (Rapid)
| National | |
| Overall | 308 |
| Gender | 285 |
| Age group | 15 |
| Gender/Age | 12 |
| Provincial | |
| Overall | 142 |
| Gender | 130 |
| Age group | 10 |
| Gender/Age | 7 |
| Regional | |
| Overall | 82 |
| Gender | 78 |
| Age group | 7 |
| 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 | 5 |
| Score | 4 |
| Percent | 80 |
| Aor | 1360 |
| Dp | 255 |
| Prat | 1615 |
Performance ()
| Games | 73 |
| Score | 51.5 |
| Percent | 70.5 |
| Aor | 1370.5 |
| Dp | 174.7 |
| Prat | 1545.1 |
Performance (12 months)
| Games | 79 |
| Score | 54.5 |
| Percent | 69 |
| Aor | 1376.7 |
| Dp | 161.4 |
| Prat | 1538.1 |
Performance (History)
| Games | 300 |
| Score | 202.5 |
| Percent | 67.5 |
| Aor | 1315.5 |
| Dp | 148.8 |
| Prat | 1464.2 |
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) | 6 | 4 | 2 | Rhenish Primary Tournament 2023 (U10) | CT PS District East Top Schools 2026 (U11 Mixed) | Details |
| Overall | 3 | Akemdien, A (Alex) | 5 | 2 | 3 | Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates) | South African Open Championship 2026 (U11 Boys) | Details |
| Overall | 4 | 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 |
| Overall | 5 | Zhang, M (Ming Xuan Jesse) | 5 | 2 | 3 | UCT Open Chess Championship 2024 (U10) | Chess Elevation Series 1 2026 (Level 2B) | 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 | Akemdien, A (Alex) | 4 | 1 | 3 | Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates) | South African Open Championship 2026 (U11 Boys) | Details |
| Standard | 3 | Kruger, J (Josua Baruch) | 4 | 3 | 1 | CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) | CT PS District East Top Schools 2026 (U11 Mixed) | Details |
| Standard | 4 | Zwartz, Z (Zeke) | 3 | 1 | 2 | Western Cape PS Individuals Championship 2024 (U9 Boys) | Helderberg Chess Club Open 2026 (U11 Mixed) | Details |
| Standard | 5 | Griessel, J (Jason) | 3 | 1 | 2 | Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) | CT PS District East Top Schools 2026 (U11 Mixed) | 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 | Human, L (Liam) | 2 | 1 | 1 | Mary-Anne Bartels Closed Chess Tournament 2024 (U7+U9 Mixed) | Mary-Anne Bartels Closed Chess Tournament 2026 (U11 Boys) | Details |
| Rapid | 4 | Davids, Z (Zachary) | 2 | 1 | 1 | GPCA Rapid 2023 (U10) | Cape of Good Hope Open 2025 (U10) | Details |
| Rapid | 5 | Walters, N (Nicola) | 2 | 2 | 0 | Rhenish Primary Tournament 2022 (U10) | District East Schools Chess Individual Trials 2023 (U7+U9 Mixed) | Details |