PLAYER PAGE
Janike Marais
2100133964Ekurhuleni (GE)Personal
Main rating
| Rating | 1252.4 |
| K-factor | 36 |
| Floor | 796 |
| Highest | 1298.5 (2024-07-01) |
| Min/Max +/- allowed | 144 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 2.28 |
| SWe | 1.04 |
| Temp +/- | 37.4 |
| Penalties | 0 |
| Weight perform | 1238.1 |
| Final +/- | +37.4 |
| New Rating () | |
| Rating | 1289.8 |
| K-factor | 36 |
| Floor | 796 |
| Highest | 1298.5 (2024-07-01) |
| Min/Max +/- allowed | 144.1 |
Standard rating
| Rating | 1219.8 |
| K-factor | 36 |
| Floor | 785.7 |
| Highest | 1285.7 (2024-06-01) |
| Min/Max +/- allowed | 146.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1065 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1219.8 |
| K-factor | 36 |
| Floor | 785.7 |
| Highest | 1285.7 (2024-06-01) |
| Min/Max +/- allowed | 146.8 |
Rapid rating
| Rating | 1296.2 |
| K-factor | 36 |
| Floor | 796.2 |
| Highest | 1490.2 (2022-05-01) |
| Min/Max +/- allowed | 109.7 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 2.75 |
| SWe | 1.25 |
| Temp +/- | 45 |
| Penalties | 0 |
| Weight perform | 1311.4 |
| Final +/- | +45 |
| New Rating () | |
| Rating | 1341.2 |
| K-factor | 36 |
| Floor | 796.2 |
| Highest | 1490.2 (2022-05-01) |
| Min/Max +/- allowed | 109.7 |
Blitz rating
| Rating | 1168.4 |
| 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 | 1168.4 |
| 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 | Kemptonpark Cluster 2026 (U15+U17 Girls) | Rapid | 2026-04-18 | 2026-04-18 | Ekurhuleni (GE) | 5 | 1252.4 | 5 | 4 | 1552.5 | 37.4 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Gauteng Inter-Region at Emerald Resort 2025 (U16+U18 Girls) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1257.5 | 4 | 1.5 | 1159.1 | -8.6 | Details |
| 2 | Ekurhuleni North Schools Teams 2025 (U17 Open) | Standard | 2025-08-16 | 2025-08-16 | Ekurhuleni (GE) | 5 | 1262.1 | 5 | 1 | 1105.4 | -14.8 | Details |
| 3 | Kempton Park Team Clusters LS 2025 (High Schools) | Rapid | 2025-07-26 | 2025-07-26 | Ekurhuleni (GE) | 4 | 1262.1 | 4 | 3 | 1444.5 | 10.4 | Details |
| 4 | Kemptonpark School Cluster 2025 (U15) | Rapid | 2025-06-07 | 2025-06-07 | Ekurhuleni (GE) | 5 | 1259.4 | 4 | 2 | 1285.9 | 1.5 | Details |
| 5 | Ekurhuleni Trials 2025 (D) | Standard | 2025-05-24 | 2025-05-24 | Ekurhuleni (GE) | 5 | 1260.4 | 4 | 1.5 | 1193.3 | -5.3 | Details |
| 6 | Gauteng Inter-Region at UJ 2024 (U16+U18 Girls) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1223.4 | 5 | 2 | 1301.7 | 9.4 | Details |
| 7 | Ekurhuleni North Schools Finals - Teams 2024 (U15 Open) | Standard | 2024-08-03 | 2024-08-03 | Ekurhuleni (GE) | 5 | 1294.5 | 4 | 0 | 942.5 | -27.7 | Details |
| 8 | Ekurhuleni Trails 3 2024 (U16) | Standard | 2024-08-24 | 2024-08-24 | Ekurhuleni (GE) | 5 | 1294.5 | 3 | 1 | 1104.8 | -11.8 | Details |
| 9 | Kempton Park Cluster Teams 2024 (U15) | Rapid | 2024-07-13 | 2024-07-13 | Ekurhuleni (GE) | 3 | 1286.9 | 3 | 2 | 1397 | 4.2 | Details |
| 10 | Ekurhuleni Trails 1 2024 (U16) | Standard | 2024-06-01 | 2024-06-01 | Ekurhuleni (GE) | 5 | 1296 | 5 | 3 | 1251.4 | -5 | Details |
| 11 | Ekurhuleni North High School Individuals 2024 (U15 Girls) | Standard | 2024-05-18 | 2024-05-18 | Ekurhuleni (GE) | 5 | 1276.3 | 5 | 3 | 1397.6 | 11 | Details |
| 12 | Kempton Park Cluster Individuals 2024 (U15+U18 Girls) | Rapid | 2024-03-02 | 2024-03-02 | Ekurhuleni (GE) | 5 | 1263.8 | 5 | 3 | 1354.2 | 7 | Details |
| 13 | Ekurhuleni Chess Trial 3 2023 (U14) | Standard | 2023-06-17 | 2023-06-17 | Ekurhuleni (GE) | 5 | 1220.2 | 5 | 4 | 1452.8 | 23.4 | Details |
| 14 | Gauteng Open Arnold Classic 2023 (U16) | Rapid | 2023-05-19 | 2023-05-19 | Tshwane (GTP) | 5 | 1190.7 | 5 | 3 | 1304 | 8.6 | Details |
| 15 | Ekurhuleni North Schools Individual Finals 2023 (U13 Girls) | Standard | 2023-05-12 | 2023-05-12 | Ekurhuleni (GE) | 5 | 1190.7 | 5 | 3 | 1265 | 8 | Details |
| 16 | Ekurhuleni Trials 2 2023 (U14) | Standard | 2023-04-22 | 2023-04-22 | Ekurhuleni (GE) | 5 | 1171.3 | 5 | 3 | 1274.7 | 10.8 | Details |
| 17 | 2022 South African Junior Team Chess Championships (U14-U18 Girls) | Classical | 2022-12-04 | 2022-12-08 | 4 Knights (4K) | 7 | 1249.6 | 6 | 1 | 951.8 | -42 | Details |
| 18 | 2022 South Africa Junior Blitz Chess Championships (U14) | Blitz | 2022-12-05 | 2022-12-05 | 4 Knights (4K) | 7 | 1249.6 | 7 | 3 | 1196.4 | -1.4 | Details |
| 19 | ACB Tournament 2022 (C) | Standard | 2022-10-08 | 2022-10-08 | Ekurhuleni (GE) | 5 | 1252.3 | 4 | 2 | 1231.9 | -1.5 | Details |
| 20 | 2022 Gauteng Schools Team Championships (U13 Open) | Standard | 2022-08-27 | 2022-08-27 | Tshwane (GTP) | 5 | 1257.7 | 5 | 2.5 | 1217.6 | -4.6 | Details |
| 21 | Ekurhuleni-North Schools Teams 2022 (U13) | Standard | 2022-08-06 | 2022-08-06 | Ekurhuleni (GE) | 5 | 1257.7 | 5 | 3 | 1278.7 | 1.5 | Details |
| 22 | RMS Swiss For Rating of Players 2022 (U13) | Rapid | 2022-05-28 | 2022-05-28 | Ekurhuleni (GE) | 7 | 1174.2 | 6 | 5 | 1418.3 | 20.9 | Details |
| 23 | Ekurhuleni-North Schools Finals Indiv 2022 (U13 Girls) | Standard | 2022-05-13 | 2022-05-13 | Ekurhuleni (GE) | 5 | 1174.2 | 4 | 3 | 1414 | 18.8 | Details |
| 24 | Ekurhuleni Trials 1 2022 (U14) | Standard | 2022-04-23 | 2022-04-23 | Ekurhuleni (GE) | 5 | 1198.1 | 5 | 2 | 1085.1 | -11.8 | Details |
| 25 | ACB Premier 2022 (Primary School) | Standard | 2022-03-19 | 2022-03-19 | Ekurhuleni (GE) | 5 | 1147 | 5 | 3.5 | 1388.2 | 21.4 | Details |
| 26 | ACB Premier 2022 (U13) | Standard | 2022-03-21 | 2022-03-21 | Ekurhuleni (GE) | 7 | 1147 | 5 | 2.5 | 1183.4 | 4.1 | Details |
| 27 | 2022 Gauteng Interregion (U12 Open) | Standard | 2022-02-26 | 2022-02-26 | Tshwane (GTP) | 5 | 1148.3 | 5 | 2 | 1147.9 | -0.8 | Details |
| 28 | Ekurhuleni Trials (3) | Standard | 2021-11-06 | 2021-11-06 | Ekurhuleni (GE) | 5 | 1167.8 | 5 | 2 | 1073.8 | -9.9 | Details |
| 29 | Ekurhuleni North Schools Individual 2021 (D) | Standard | 2021-09-11 | 2021-09-11 | Ekurhuleni (GE) | 5 | 1168.8 | 4 | 2 | 1163.5 | -0.3 | Details |
| 30 | Ekurhuleni Chess Chessa Open 2021 (C) | Standard | 2021-03-27 | 2021-03-27 | Ekurhuleni (GE) | 5 | 1200 | 5 | 2 | 1032.9 | -15.6 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 4 |
| Draws | 0 |
| Losses | 1 |
| White | 3 |
| Black | 2 |
| White wins | 3 |
| Black wins | 1 |
| Score | 4 |
| Percent | 80 |
| Dp | 255 |
| AOR | 1297.5 |
| Performance | 1552.5 |
Game statistics ()
| Games | 5 |
| Wins | 4 |
| Draws | 0 |
| Losses | 1 |
| White | 3 |
| Black | 2 |
| White wins | 3 |
| Black wins | 1 |
| Score | 4 |
| Percent | 80 |
| Dp | 255 |
| AOR | 1297.5 |
| Performance | 1552.5 |
Game statistics (History)
| Games | 147 |
| Wins | 73 |
| Draws | 5 |
| Losses | 69 |
| White | 75 |
| Black | 72 |
| White wins | 43 |
| Black wins | 30 |
| Score | 75.5 |
| Percent | 51.4 |
| Dp | 11.6 |
| AOR | 1231.8 |
| Performance | 1243.4 |
Rankings (Main)
| National | |
| Overall | 8523 |
| Gender | 1629 |
| Age group | 1339 |
| Gender/Age | 265 |
| Provincial | |
| Overall | 2856 |
| Gender | 545 |
| Age group | 502 |
| Gender/Age | 96 |
| Regional | |
| Overall | 625 |
| Gender | 146 |
| Age group | 125 |
| Gender/Age | 28 |
Rankings (Standard)
| National | |
| Overall | 9118 |
| Gender | 1977 |
| Age group | 1466 |
| Gender/Age | 320 |
| Provincial | |
| Overall | 3202 |
| Gender | 701 |
| Age group | 568 |
| Gender/Age | 120 |
| Regional | |
| Overall | 635 |
| Gender | 176 |
| Age group | 130 |
| Gender/Age | 32 |
Rankings (Rapid)
| National | |
| Overall | 2017 |
| Gender | 358 |
| Age group | 260 |
| Gender/Age | 43 |
| Provincial | |
| Overall | 363 |
| Gender | 64 |
| Age group | 43 |
| Gender/Age | 7 |
| Regional | |
| Overall | 119 |
| Gender | 36 |
| Age group | 14 |
| Gender/Age | 5 |
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 | 1297.5 |
| Dp | 255 |
| Prat | 1552.5 |
Performance ()
| Games | 5 |
| Score | 4 |
| Percent | 80 |
| Aor | 1297.5 |
| Dp | 255 |
| Prat | 1552.5 |
Performance (12 months)
| Games | 26 |
| Score | 13 |
| Percent | 50 |
| Aor | 1293.1 |
| Dp | 0 |
| Prat | 1293.1 |
Performance (History)
| Games | 147 |
| Score | 75.5 |
| Percent | 51.4 |
| Aor | 1231.8 |
| Dp | 11.6 |
| Prat | 1243.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Bothma, J (Jaculene) | 4 | 4 | 0 | Ekurhuleni North Schools Individual 2021 (D) | Ekurhuleni Trails 3 2024 (U16) | Details |
| Overall | 2 | Sebogoane, T (Thoriso) | 3 | 0 | 3 | ACB Premier 2022 (Primary School) | Ekurhuleni North High School Individuals 2024 (U15 Girls) | Details |
| Overall | 3 | Lovett, S (Saffron) | 2 | 2 | 0 | Ekurhuleni Trials 1 2022 (U14) | Ekurhuleni North High School Individuals 2024 (U15 Girls) | Details |
| Overall | 4 | Moyo, N (Nkosana Junior) | 2 | 1 | 1 | Kempton Park Cluster Teams 2024 (U15) | Ekurhuleni North Schools Finals - Teams 2024 (U15 Open) | Details |
| Overall | 5 | Abbott, J (Janco) | 2 | 1 | 1 | ACB Premier 2022 (U13) | Ekurhuleni-North Schools Teams 2022 (U13) | Details |
| Standard | 1 | Bothma, J (Jaculene) | 4 | 4 | 0 | Ekurhuleni North Schools Individual 2021 (D) | Ekurhuleni Trails 3 2024 (U16) | Details |
| Standard | 2 | Sebogoane, T (Thoriso) | 3 | 0 | 3 | ACB Premier 2022 (Primary School) | Ekurhuleni North High School Individuals 2024 (U15 Girls) | Details |
| Standard | 3 | Myburgh, M (Melinda) | 2 | 1 | 1 | Ekurhuleni North Schools Individual Finals 2023 (U13 Girls) | Ekurhuleni Chess Trial 3 2023 (U14) | Details |
| Standard | 4 | Pitzer, E (Emuel) | 2 | 1 | 1 | Ekurhuleni Trails 1 2024 (U16) | Ekurhuleni Trails 3 2024 (U16) | Details |
| Standard | 5 | Pillay, K (Ketana) | 2 | 2 | 0 | 2022 Gauteng Schools Team Championships (U13 Open) | 2022 South African Junior Team Chess Championships (U14-U18 Girls) | Details |
| Rapid | 1 | Sithole, B (Brendel) | 2 | 2 | 0 | Kempton Park Cluster Teams 2024 (U15) | Kemptonpark School Cluster 2025 (U15) | Details |