PLAYER PAGE
Ethen Frederik Marx
1100107178West Rand (GWR)Personal
Main rating
| Rating | 1251.4 |
| K-factor | 36 |
| Floor | 870 |
| Highest | 1370 (2026-03-01) |
| Min/Max +/- allowed | 130 |
| Rating Change () | |
| Games | 5 |
| Score | 2 |
| We | 2.72 |
| SWe | -0.93 |
| Temp +/- | -33.6 |
| Penalties | 0 |
| Weight perform | 1105.6 |
| Final +/- | -33.6 |
| New Rating () | |
| Rating | 1217.8 |
| K-factor | 36 |
| Floor | 870 |
| Highest | 1370 (2026-03-01) |
| Min/Max +/- allowed | 130.2 |
Standard rating
| Rating | 1234.7 |
| K-factor | 36 |
| Floor | 870 |
| Highest | 1370 (2026-03-01) |
| Min/Max +/- allowed | 130.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1117.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1234.7 |
| K-factor | 36 |
| Floor | 870 |
| Highest | 1370 (2026-03-01) |
| Min/Max +/- allowed | 130.2 |
Rapid rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 5 |
| Score | 2 |
| We | 2.61 |
| SWe | -1.35 |
| Temp +/- | -48.4 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | -48.4 |
| New Rating () | |
| Rating | 1151.6 |
| 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 |
| 1 | Gauteng Top Schools Teams 2026 (U17) | Rapid | 2026-08-28 | 2026-08-28 | Ekurhuleni (GE) | 5 | 1251.4 | 5 | 2 | 1135.8 | -19.2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | West Rand Trials 2026 (U18) | Standard | 2026-09-05 | 2026-09-05 | West Rand (GWR) | 5 | 1244.3 | 4 | 1.5 | 1296.5 | 7.1 | Details |
| 2 | 2026 D2 Schools League Finals (U17) | Standard | 2026-08-15 | 2026-08-15 | West Rand (GWR) | 5 | 1244.3 | 5 | 2 | 876.5 | -65.9 | Details |
| 3 | West Rand Womens Day Open 2026 (Open) | Standard | 2026-08-08 | 2026-08-08 | West Rand (GWR) | 5 | 1244.3 | 3 | 1 | 1501.7 | 20.8 | Details |
| 4 | 2026 West Rand Open 2.0 (Open) | Standard | 2026-06-06 | 2026-06-06 | West Rand (GWR) | 5 | 1308.3 | 4 | 0.5 | 1175.8 | -18.9 | Details |
| 5 | 2026 D2 Schools Individuals (U18 Boys) | Standard | 2026-05-15 | 2026-05-16 | West Rand (GWR) | 5 | 1324.5 | 5 | 2 | 1174 | -25.1 | Details |
| 6 | West Rand goes to Monnas 2026 (Rooks) | Standard | 2026-05-02 | 2026-05-02 | West Rand (GWR) | 5 | 1324.5 | 5 | 3 | 1381.9 | 8.9 | Details |
| 7 | FIDE in the West 2026 (Open) | Standard | 2026-04-11 | 2026-04-11 | West Rand (GWR) | 5 | 1370 | 4 | 0 | 1047.9 | -45.4 | Details |
| 8 | West Rand Juniors 2026 (U18) | Standard | 2026-03-07 | 2026-03-07 | West Rand (GWR) | 5 | 1277.9 | 4 | 2.5 | 1550.3 | 38.1 | Details |
| 9 | West Rand Open 2026 (Rooks) | Standard | 2026-02-07 | 2026-02-07 | West Rand (GWR) | 5 | 1237.8 | 5 | 3 | 1460.2 | 14.8 | Details |
| 10 | West Rand Trials 2025 (U16) | Standard | 2025-09-06 | 2025-09-06 | West Rand (GWR) | 5 | 1249.5 | 5 | 1.5 | 1177 | -6.5 | Details |
| 11 | West Rand Women's Day Open 2025 (Rooks) | Standard | 2025-08-09 | 2025-08-09 | West Rand (GWR) | 5 | 1234.8 | 5 | 2.5 | 1312.2 | 8.1 | Details |
| 12 | West Rand Open 2.0 2025 (Bishops) | Standard | 2025-06-07 | 2025-06-07 | West Rand (GWR) | 5 | 1194 | 5 | 4 | 1418.6 | 22.6 | Details |
| 13 | FIDE in The West 2025 (Rooks) | Standard | 2025-04-12 | 2025-04-12 | West Rand (GWR) | 5 | 1223.4 | 4 | 0.5 | 1015.7 | -16.3 | Details |
| 14 | West Rand Juniors 2025 (U16) | Standard | 2025-03-08 | 2025-03-08 | West Rand (GWR) | 5 | 1209.1 | 5 | 3 | 1297.8 | 8 | Details |
| 15 | 2025 West Rand Open (Bishops) | Standard | 2025-02-08 | 2025-02-08 | West Rand (GWR) | 5 | 1186.4 | 4 | 3 | 1347.2 | 12.6 | Details |
| 16 | 2019 Blou Bul (E) | Standard | 2019-02-16 | 2019-02-16 | Tshwane (GTP) | 5 | 1201 | 5 | 3 | 1124.2 | -8 | Details |
| 17 | 2019 Tshwane Chess Registration Tournament (E) | Standard | 2019-01-26 | 2019-01-26 | Tshwane (GTP) | 5 | 1200.7 | 5 | 2.5 | 1194.5 | 0.2 | Details |
| 18 | 2018 Lardies Ope (F) | Standard | 2018-10-27 | 2018-10-27 | Tshwane (GTP) | 5 | 1200 | 5 | 2.5 | 1210.2 | 0.3 | 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 | 44 |
| Wins | 16 |
| Draws | 3 |
| Losses | 25 |
| White | 22 |
| Black | 22 |
| White wins | 9 |
| Black wins | 7 |
| Score | 17.5 |
| Percent | 39.8 |
| Dp | -86.9 |
| AOR | 1335.3 |
| Performance | 1248.4 |
Game statistics (History)
| Games | 87 |
| Wins | 36 |
| Draws | 8 |
| Losses | 43 |
| White | 43 |
| Black | 44 |
| White wins | 21 |
| Black wins | 15 |
| Score | 40 |
| Percent | 46 |
| Dp | -34.2 |
| AOR | 1276.2 |
| Performance | 1242 |
Rankings (Main)
| National | |
| Overall | 8405 |
| Gender | 6764 |
| Age group | 1279 |
| Gender/Age | 1017 |
| Provincial | |
| Overall | 2913 |
| Gender | 2322 |
| Age group | 488 |
| Gender/Age | 381 |
| Regional | |
| Overall | 922 |
| Gender | 741 |
| Age group | 151 |
| Gender/Age | 118 |
Rankings (Standard)
| National | |
| Overall | 7942 |
| Gender | 6223 |
| Age group | 1232 |
| Gender/Age | 962 |
| Provincial | |
| Overall | 2858 |
| Gender | 2209 |
| Age group | 484 |
| Gender/Age | 371 |
| Regional | |
| Overall | 997 |
| Gender | 775 |
| Age group | 157 |
| Gender/Age | 121 |
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 | 44 |
| Score | 17.5 |
| Percent | 39.8 |
| Aor | 1335.3 |
| Dp | -86.9 |
| Prat | 1248.4 |
Performance (12 months)
| Games | 44 |
| Score | 17.5 |
| Percent | 39.8 |
| Aor | 1335.3 |
| Dp | -86.9 |
| Prat | 1248.4 |
Performance (History)
| Games | 87 |
| Score | 40 |
| Percent | 46 |
| Aor | 1276.2 |
| Dp | -34.2 |
| Prat | 1242 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Viljoen, J (Johandre) | 3 | 1 | 2 | West Rand Women's Day Open 2025 (Rooks) | West Rand Open 2026 (Rooks) | Details |
| Overall | 2 | Sithole, T (Thulani) | 2 | 1 | 1 | 2026 West Rand Open 2.0 (Open) | West Rand Womens Day Open 2026 (Open) | Details |
| Overall | 3 | Nakedi, K (Kutlwano) | 2 | 1 | 1 | West Rand Trials 2025 (U16) | West Rand Juniors 2026 (U18) | Details |
| Overall | 4 | Sibanda, M (Marlvin) | 2 | 1 | 1 | West Rand Juniors 2026 (U18) | West Rand Trials 2026 (U18) | Details |
| Overall | 5 | Perry-Fisher, IE (Iain Eric) | 2 | 0 | 2 | West Rand goes to Monnas 2026 (Rooks) | West Rand Trials 2026 (U18) | Details |
| Standard | 1 | Viljoen, J (Johandre) | 3 | 1 | 2 | West Rand Women's Day Open 2025 (Rooks) | West Rand Open 2026 (Rooks) | Details |
| Standard | 2 | Perry-Fisher, IE (Iain Eric) | 2 | 0 | 2 | West Rand goes to Monnas 2026 (Rooks) | West Rand Trials 2026 (U18) | Details |
| Standard | 3 | Sithole, T (Thulani) | 2 | 1 | 1 | 2026 West Rand Open 2.0 (Open) | West Rand Womens Day Open 2026 (Open) | Details |
| Standard | 4 | Nakedi, K (Kutlwano) | 2 | 1 | 1 | West Rand Trials 2025 (U16) | West Rand Juniors 2026 (U18) | Details |
| Standard | 5 | Sibanda, M (Marlvin) | 2 | 1 | 1 | West Rand Juniors 2026 (U18) | West Rand Trials 2026 (U18) | Details |