PLAYER PAGE
Carlo Marius Meijer
1160191601Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1381.9 |
| K-factor | 32 |
| Floor | 1025.5 |
| Highest | 1525.5 (2025-07-01) |
| Min/Max +/- allowed | 104 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1129.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1381.9 |
| K-factor | 32 |
| Floor | 1025.5 |
| Highest | 1525.5 (2025-07-01) |
| Min/Max +/- allowed | 104.3 |
Standard rating
| Rating | 1386.8 |
| K-factor | 32 |
| Floor | 1024.6 |
| Highest | 1524.6 (2025-07-01) |
| Min/Max +/- allowed | 104.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1180.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1386.8 |
| K-factor | 32 |
| Floor | 1024.6 |
| Highest | 1524.6 (2025-07-01) |
| Min/Max +/- allowed | 104.4 |
Rapid rating
| Rating | 1184.7 |
| 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 | 1184.7 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 3rd Knight Riders Juniors Open Chess Tournament 2026 (D+E) | Standard | 2026-03-08 | 2026-03-08 | Johannesburg Metro (GJM) | 5 | 1400 | 5 | 2.5 | 1276.1 | -18 | Details |
| 2 | Gauteng Inter-Region at Emerald Resort 2025 (U10 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1427 | 5 | 2 | 1261.8 | -17.5 | Details |
| 3 | 2025 Gauteng Top Schools Teams (U11) | Standard | 2025-08-29 | 2025-08-29 | Tshwane (GTP) | 5 | 1433.5 | 2 | 1 | 1293.7 | -4 | Details |
| 4 | MCA Spring Flower Birthday Rapid 2025 (U10) | Rapid | 2025-09-20 | 2025-09-20 | Johannesburg Metro (GJM) | 5 | 1466.7 | 4 | 1 | 1131.1 | -20.7 | Details |
| 5 | JMC Closed 2025 (U10) | Standard | 2025-08-09 | 2025-08-09 | Johannesburg Metro (GJM) | 5 | 1519.3 | 5 | 2 | 1172.5 | -32.9 | Details |
| 6 | JMC - Trinity Randpark Ridge 2025 (U10) | Standard | 2025-07-26 | 2025-07-26 | Johannesburg Metro (GJM) | 5 | 1525.5 | 5 | 3 | 1401.5 | -11.1 | Details |
| 7 | South African Open 2025 (U10 Open) | Classical | 2025-07-03 | 2025-07-05 | Johannesburg Metro (GJM) | 5 | 1525.5 | 5 | 3 | 1580.7 | 7.4 | Details |
| 8 | Third Knight Riders Junior Open 2025 (U10) | Standard | 2025-06-22 | 2025-06-22 | Johannesburg Metro (GJM) | 5 | 1339.4 | 5 | 4 | 1628.6 | 28.9 | Details |
| 9 | Knight Riders Youth Day Open 2025 (U10) | Standard | 2025-06-15 | 2025-06-15 | Johannesburg Metro (GJM) | 5 | 1339.4 | 5 | 4 | 1581 | 24.2 | Details |
| 10 | 2025 JMCA Open Chess Tournament (U10) | Standard | 2025-06-07 | 2025-06-07 | Tshwane (GTP) | 5 | 1339.4 | 5 | 4 | 1603.2 | 25.1 | Details |
| 11 | JMC Helpmekaar 2025 (U10) | Standard | 2025-06-01 | 2025-06-01 | Johannesburg Metro (GJM) | 5 | 1339.4 | 5 | 2.5 | 1341.7 | -0.5 | Details |
| 12 | Mzansi Africa Classic 2025 (Intermediate) | Standard | 2025-05-17 | 2025-05-17 | Johannesburg Metro (GJM) | 5 | 1414.4 | 5 | 1 | 1065.1 | -34.7 | Details |
| 13 | Moja Chess Extravaganza 2025 (U10) | Classical | 2025-04-26 | 2025-04-28 | Johannesburg Metro (GJM) | 5 | 1414.4 | 5 | 3 | 1433 | 3.2 | Details |
| 14 | JMC Crawford Sandton 2025 (U10) | Standard | 2025-05-10 | 2025-05-10 | Johannesburg Metro (GJM) | 5 | 1414.4 | 5 | 1.5 | 1265 | -15.3 | Details |
| 15 | 2nd Knight Riders Junior Open 2025 (U10) | Standard | 2025-03-23 | 2025-03-23 | Johannesburg Metro (GJM) | 5 | 1381.7 | 0 | 0 | 0 | 0 | Details |
| 16 | JMC Crawford Ruimsig 2025 (U10) | Standard | 2025-03-01 | 2025-03-01 | Johannesburg Metro (GJM) | 5 | 1381.7 | 5 | 3.5 | 1560.7 | 18.1 | Details |
| 17 | Knight Riders Open Chess Tournament 2025 (U10) | Standard | 2025-02-22 | 2025-02-22 | Johannesburg Metro (GJM) | 5 | 1314 | 5 | 3 | 1390 | 6.8 | Details |
| 18 | JMC Kick Off 2025 (U10) | Standard | 2025-02-02 | 2025-02-02 | Johannesburg Metro (GJM) | 5 | 1314 | 5 | 3 | 1514.8 | 18.8 | Details |
| 19 | Gauteng Inter-Region at UJ 2024 (U10 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1250 | 5 | 5 | 1564.4 | 35.5 | Details |
| 20 | Heidelberg Open 05 October 2024 (E) | Standard | 2024-10-05 | 2024-10-05 | Sedibeng (GSV) | 5 | 1319.9 | 5 | 2 | 1179.6 | -12.4 | Details |
| 21 | Gauteng Top Schools 2024 (U9 Open) | Standard | 2024-10-04 | 2024-10-04 | Ekurhuleni (GE) | 5 | 1319.9 | 5 | 1 | 1042.3 | -26.4 | Details |
| 22 | JMC Closed 2024 (U10) | Standard | 2024-08-09 | 2024-08-09 | Johannesburg Metro (GJM) | 5 | 1301.6 | 5 | 3 | 1356.1 | 6 | Details |
| 23 | Chess Power House July Open 2024 (E) | Standard | 2024-07-20 | 2024-07-20 | Johannesburg Metro (GJM) | 5 | 1239.2 | 5 | 4 | 1476.1 | 22.4 | Details |
| 24 | JMC Trinityhouse Randpark Ridge 2024 (U10) | Standard | 2024-07-13 | 2024-07-13 | Johannesburg Metro (GJM) | 5 | 1239.2 | 5 | 2 | 1227.9 | -0.5 | Details |
| 25 | Chess Power House June Open 2024 (D) | Standard | 2024-06-23 | 2024-06-23 | Ekurhuleni (GE) | 5 | 1315.6 | 5 | 3 | 1278.1 | -4.3 | Details |
| 26 | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Standard | 2024-06-15 | 2024-06-15 | Tshwane (GTP) | 5 | 1315.6 | 5 | 2 | 1170 | -15.2 | Details |
| 27 | Second Knight Riders Juniors Open Chess Tournament 2024 (U10) | Standard | 2024-06-08 | 2024-06-08 | Johannesburg Metro (GJM) | 5 | 1315.6 | 5 | 3 | 1231.5 | -8.6 | Details |
| 28 | JMC Trinityhouse Little Falls 2024 (U10) | Standard | 2024-06-02 | 2024-06-02 | Johannesburg Metro (GJM) | 5 | 1315.6 | 4 | 1 | 1132.4 | -14.3 | Details |
| 29 | Chess Power House May Open 2024 (E) | Standard | 2024-05-25 | 2024-05-25 | Johannesburg Metro (GJM) | 5 | 1211.1 | 5 | 3 | 1346.2 | 12.6 | Details |
| 30 | JMC Crawford International Sandton 2024 (U10) | Standard | 2024-05-11 | 2024-05-11 | Johannesburg Metro (GJM) | 5 | 1211.1 | 5 | 2.5 | 1343.8 | 13.6 | Details |
| 31 | JMC Helpmekaar Kollege Tournament 2024 (U10) | Standard | 2024-05-04 | 2024-05-04 | Johannesburg Metro (GJM) | 5 | 1211.1 | 5 | 2.5 | 1309.2 | 9 | Details |
| 32 | First Knight Riders Junior Open 2024 (U8+U10) | Standard | 2024-04-20 | 2024-04-20 | Johannesburg Metro (GJM) | 5 | 1187.5 | 5 | 3 | 1316.1 | 13.1 | Details |
| 33 | 1st Knights Open Tournament 2024 (U10) | Standard | 2024-03-23 | 2024-03-23 | Johannesburg Metro (GJM) | 5 | 1180.9 | 5 | 2 | 1227.5 | 3.7 | Details |
| 34 | JMC Kick Off Tournament 2024 (U10) | Standard | 2024-01-28 | 2024-01-28 | Johannesburg Metro (GJM) | 5 | 1200 | 5 | 2 | 1097.4 | -10.6 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 5 |
| Wins | 2 |
| Draws | 1 |
| Losses | 2 |
| White | 2 |
| Black | 3 |
| White wins | 1 |
| Black wins | 1 |
| Score | 2.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1276.1 |
| Performance | 1276.1 |
Game statistics (History)
| Games | 160 |
| Wins | 81 |
| Draws | 8 |
| Losses | 71 |
| White | 77 |
| Black | 83 |
| White wins | 35 |
| Black wins | 46 |
| Score | 85 |
| Percent | 53.1 |
| Dp | 26.6 |
| AOR | 1303.8 |
| Performance | 1330.3 |
Rankings (Main)
| National | |
| Overall | 3968 |
| Gender | 3337 |
| Age group | 372 |
| Gender/Age | 291 |
| Provincial | |
| Overall | 1368 |
| Gender | 1153 |
| Age group | 129 |
| Gender/Age | 104 |
| Regional | |
| Overall | 399 |
| Gender | 349 |
| Age group | 42 |
| Gender/Age | 37 |
Rankings (Standard)
| National | |
| Overall | 3441 |
| Gender | 2865 |
| Age group | 328 |
| Gender/Age | 252 |
| Provincial | |
| Overall | 1249 |
| Gender | 1056 |
| Age group | 115 |
| Gender/Age | 93 |
| Regional | |
| Overall | 362 |
| Gender | 318 |
| Age group | 41 |
| Gender/Age | 36 |
Rankings (Rapid)
| 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 |
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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 5 |
| Score | 2.5 |
| Percent | 50 |
| Aor | 1276.1 |
| Dp | 0 |
| Prat | 1276.1 |
Performance (12 months)
| Games | 14 |
| Score | 5.5 |
| Percent | 39.3 |
| Aor | 1320.6 |
| Dp | -91.1 |
| Prat | 1229.6 |
Performance (History)
| Games | 160 |
| Score | 85 |
| Percent | 53.1 |
| Aor | 1303.8 |
| Dp | 26.6 |
| Prat | 1330.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Gerber, Z (Zoe) | 5 | 1 | 4 | JMC Trinityhouse Randpark Ridge 2024 (U10) | JMC Closed 2025 (U10) | Details |
| Overall | 2 | Taylor, M (Matthew) | 4 | 2 | 2 | 1st Knights Open Tournament 2024 (U10) | Chess Power House July Open 2024 (E) | Details |
| Overall | 3 | Hlabangwane, N (Ntwanano) | 4 | 3 | 1 | Second Knight Riders Juniors Open Chess Tournament 2024 (U10) | Third Knight Riders Junior Open 2025 (U10) | Details |
| Overall | 4 | Kuchibhotla, AKA (Achyuta Kartikeya Arjun) | 4 | 3 | 1 | JMC Helpmekaar Kollege Tournament 2024 (U10) | MCA Spring Flower Birthday Rapid 2025 (U10) | Details |
| Overall | 5 | Ntshaqa, M (Melokuhle) | 3 | 1 | 2 | Second Knight Riders Juniors Open Chess Tournament 2024 (U10) | 3rd Knight Riders Juniors Open Chess Tournament 2026 (D+E) | Details |
| Standard | 1 | Gerber, Z (Zoe) | 5 | 1 | 4 | JMC Trinityhouse Randpark Ridge 2024 (U10) | JMC Closed 2025 (U10) | Details |
| Standard | 2 | Taylor, M (Matthew) | 4 | 2 | 2 | 1st Knights Open Tournament 2024 (U10) | Chess Power House July Open 2024 (E) | Details |
| Standard | 3 | Hlabangwane, N (Ntwanano) | 4 | 3 | 1 | Second Knight Riders Juniors Open Chess Tournament 2024 (U10) | Third Knight Riders Junior Open 2025 (U10) | Details |
| Standard | 4 | Kuchibhotla, AKA (Achyuta Kartikeya Arjun) | 3 | 2 | 1 | JMC Helpmekaar Kollege Tournament 2024 (U10) | 2025 JMCA Open Chess Tournament (U10) | Details |
| Standard | 5 | Ntshaqa, M (Melokuhle) | 3 | 1 | 2 | Second Knight Riders Juniors Open Chess Tournament 2024 (U10) | 3rd Knight Riders Juniors Open Chess Tournament 2026 (D+E) | Details |