PLAYER PAGE
Emma Koen
2180161835Cape Town (WCT)Personal
Main rating
| Rating | 1328.3 |
| K-factor | 32 |
| Floor | 913.3 |
| Highest | 1413.3 (2025-07-01) |
| Min/Max +/- allowed | 122 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1165.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1328.3 |
| K-factor | 32 |
| Floor | 913.3 |
| Highest | 1413.3 (2025-07-01) |
| Min/Max +/- allowed | 122.4 |
Standard rating
| Rating | 1392 |
| K-factor | 32 |
| Floor | 1023.2 |
| Highest | 1523.2 (2025-04-01) |
| Min/Max +/- allowed | 104.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1222.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1392 |
| K-factor | 32 |
| Floor | 1023.2 |
| Highest | 1523.2 (2025-04-01) |
| Min/Max +/- allowed | 104.6 |
Rapid rating
| Rating | 1196.1 |
| K-factor | 36 |
| Floor | 702.1 |
| Highest | 1202.1 (2025-11-30) |
| Min/Max +/- allowed | 165.3 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1095.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1196.1 |
| K-factor | 36 |
| Floor | 702.1 |
| Highest | 1202.1 (2025-11-30) |
| Min/Max +/- allowed | 165.3 |
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 | CT Metro District East Schools Chess Individuals Trials 2026 (U9 Girls) | Standard | 2026-02-07 | 2026-02-08 | Cape Town (WCT) | 6 | 1333 | 6 | 3 | 1294.2 | 0 | Details |
| 2 | COGH 2026 (U10) | Rapid | 2026-01-31 | 2026-02-01 | Cape Town (WCT) | 6 | 1333 | 5 | 2 | 1189.7 | 0 | Details |
| 3 | Gordons Bay Primary Chess Championship 2025 (Open) | Rapid | 2025-10-25 | 2025-10-25 | Cape Town (WCT) | 5 | 1342.9 | 4 | 2 | 1231.5 | 0 | Details |
| 4 | Western Cape Schools - Top Schools 2025 (U9 Girls) | Standard | 2025-09-06 | 2025-09-07 | Overberg (WOS) | 6 | 1403.2 | 5 | 0.5 | 1009.7 | 0 | Details |
| 5 | CT Metro District East Top Schools Chess 2025 (U9+U11 Girls) | Standard | 2025-08-02 | 2025-08-03 | Cape Town (WCT) | 6 | 1413.3 | 6 | 3 | 1359 | 0 | Details |
| 6 | Helderberg Chess Club Open 2025 (U7 Girls) | Standard | 2025-06-07 | 2025-06-07 | Cape Town (WCT) | 5 | 1403.9 | 5 | 4 | 1468.8 | 0 | Details |
| 7 | Western Cape Schools Individual Championship 2025 (U7 Girls) | Standard | 2025-05-17 | 2025-05-18 | Cape Winelands (WCW) | 6 | 1336 | 6 | 6 | 1656.9 | 0 | Details |
| 8 | South African Junior Closed Chess Championships 2025 (U8 Girls) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1351.2 | 9 | 4.5 | 1306.8 | 0 | Details |
| 9 | Cape Town Open Chess Festival 2025 (Junior Rapid) | Rapid | 2025-03-21 | 2025-03-21 | Cape Town (WCT) | 6 | 1347.8 | 6 | 1 | 953 | 0 | Details |
| 10 | CT Metro Schools Individual Closed 2025 (U7 Girls) | Standard | 2025-03-01 | 2025-03-02 | Cape Town (WCT) | 6 | 1347.8 | 5 | 5 | 1633.6 | 0 | Details |
| 11 | Cape of Good Hope Open 2025 (U8) | Rapid | 2025-02-22 | 2025-02-22 | Cape Town (WCT) | 6 | 1304.6 | 6 | 3 | 1194.9 | 0 | Details |
| 12 | CT Metro District East Schools Chess Individuals Trials 2025 (U7 Girls) | Standard | 2025-02-01 | 2025-02-01 | Cape Town (WCT) | 6 | 1304.6 | 4 | 4 | 1621.1 | 0 | Details |
| 13 | Helderberg Chess Club PS Development Tournament 2025 (U7) | Standard | 2025-01-25 | 2025-01-25 | Cape Town (WCT) | 5 | 1223.2 | 5 | 5 | 1625 | 0 | Details |
| 14 | 2025 Kraaifontein Open Chess Championships (Rapid U10) | Rapid | 2025-01-04 | 2025-01-04 | Cape Town (WCT) | 6 | 1223.2 | 6 | 3 | 1200.2 | 0 | Details |
| 15 | Laerskool Welgemoed Rapid 2024 (U8) | Rapid | 2024-10-19 | 2024-10-19 | Cape Town (WCT) | 6 | 1217.7 | 6 | 3 | 1190.4 | 0 | Details |
| 16 | Grant East Annual Primary School Invitational Chess Tournament 2024 (U7) | Standard | 2024-10-05 | 2024-10-05 | Cape Town (WCT) | 5 | 1217.7 | 5 | 3 | 1277 | 0 | Details |
| 17 | CT Metro District East Top Schools Chess 2024 (U9 Mixed) | Standard | 2024-07-27 | 2024-07-28 | Cape Town (WCT) | 5 | 1206 | 5 | 3 | 1311 | 0 | Details |
| 18 | Curro Durbanville Chess Rapid Open 2024 (Beginner) | Rapid | 2024-07-13 | 2024-07-13 | Cape Town (WCT) | 6 | 1206 | 5 | 2 | 1164.8 | 0 | Details |
| 19 | Western Cape PS Individuals Championship 2024 (U7 Girls) | Standard | 2024-05-04 | 2024-05-05 | West Coast (WCU) | 6 | 1176.4 | 6 | 4 | 1315.5 | 0 | Details |
| 20 | Cape Town Metro Schools Chess Closed Individuals 2024 (U7 Girls) | Standard | 2024-03-02 | 2024-03-03 | Cape Town (WCT) | 5 | 1168.3 | 4 | 2 | 1227.6 | 0 | Details |
| 21 | CT District East Schools Chess Individuals Trails 2024 (U7+U9 Girls) | Standard | 2024-02-03 | 2024-02-03 | Cape Town (WCT) | 5 | 1200 | 4 | 1 | 974.6 | 0 | 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 | 11 |
| Wins | 5 |
| Draws | 0 |
| Losses | 6 |
| White | 5 |
| Black | 6 |
| White wins | 3 |
| Black wins | 2 |
| Score | 5 |
| Percent | 45.5 |
| Dp | -38.6 |
| AOR | 1285.3 |
| Performance | 1246.7 |
Game statistics (History)
| Games | 113 |
| Wins | 63 |
| Draws | 2 |
| Losses | 48 |
| White | 56 |
| Black | 57 |
| White wins | 34 |
| Black wins | 29 |
| Score | 64 |
| Percent | 56.6 |
| Dp | 56.4 |
| AOR | 1238.8 |
| Performance | 1295.2 |
Rankings (Main)
| National | |
| Overall | 5051 |
| Gender | 838 |
| Age group | 153 |
| Gender/Age | 27 |
| Provincial | |
| Overall | 1537 |
| Gender | 320 |
| Age group | 59 |
| Gender/Age | 11 |
| Regional | |
| Overall | 717 |
| Gender | 112 |
| Age group | 22 |
| Gender/Age | 5 |
Rankings (Standard)
| National | |
| Overall | 3126 |
| Gender | 490 |
| Age group | 95 |
| Gender/Age | 18 |
| Provincial | |
| Overall | 889 |
| Gender | 175 |
| Age group | 31 |
| Gender/Age | 7 |
| Regional | |
| Overall | 467 |
| Gender | 72 |
| Age group | 11 |
| Gender/Age | 3 |
Rankings (Rapid)
| National | |
| Overall | 4595 |
| Gender | 1033 |
| Age group | 225 |
| Gender/Age | 59 |
| Provincial | |
| Overall | 1846 |
| Gender | 439 |
| Age group | 123 |
| Gender/Age | 27 |
| Regional | |
| Overall | 714 |
| Gender | 121 |
| Age group | 42 |
| Gender/Age | 10 |
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 | 11 |
| Score | 5 |
| Percent | 45.5 |
| Aor | 1285.3 |
| Dp | -38.6 |
| Prat | 1246.7 |
Performance (12 months)
| Games | 52 |
| Score | 26 |
| Percent | 50 |
| Aor | 1280.9 |
| Dp | 0 |
| Prat | 1280.9 |
Performance (History)
| Games | 113 |
| Score | 64 |
| Percent | 56.6 |
| Aor | 1238.8 |
| Dp | 56.4 |
| Prat | 1295.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | de Wet, L (Lila) | 8 | 4 | 4 | Helderberg Chess Club PS Development Tournament 2025 (U7) | CT Metro District East Top Schools Chess 2025 (U9+U11 Girls) | Details |
| Overall | 2 | Klopper, E (Elbe) | 5 | 2 | 3 | Cape Town Metro Schools Chess Closed Individuals 2024 (U7 Girls) | CT Metro District East Schools Chess Individuals Trials 2026 (U9 Girls) | Details |
| Overall | 3 | de Wet, Z (Zoey) | 5 | 3 | 2 | Helderberg Chess Club PS Development Tournament 2025 (U7) | Helderberg Chess Club Open 2025 (U7 Girls) | Details |
| Overall | 4 | Malherbe, A (Aasha) | 3 | 1 | 2 | Cape Town Open Chess Festival 2025 (Junior Rapid) | COGH 2026 (U10) | Details |
| Overall | 5 | Kirthan, V (Venya) | 3 | 0 | 3 | Cape Town Metro Schools Chess Closed Individuals 2024 (U7 Girls) | Laerskool Welgemoed Rapid 2024 (U8) | Details |
| Standard | 1 | de Wet, L (Lila) | 8 | 4 | 4 | Helderberg Chess Club PS Development Tournament 2025 (U7) | CT Metro District East Top Schools Chess 2025 (U9+U11 Girls) | Details |
| Standard | 2 | de Wet, Z (Zoey) | 5 | 3 | 2 | Helderberg Chess Club PS Development Tournament 2025 (U7) | Helderberg Chess Club Open 2025 (U7 Girls) | Details |
| Standard | 3 | Klopper, E (Elbe) | 5 | 2 | 3 | Cape Town Metro Schools Chess Closed Individuals 2024 (U7 Girls) | CT Metro District East Schools Chess Individuals Trials 2026 (U9 Girls) | Details |
| Standard | 4 | De Bruyn, K (Kayla) | 2 | 1 | 1 | CT Metro District East Top Schools Chess 2025 (U9+U11 Girls) | CT Metro District East Top Schools Chess 2025 (U9+U11 Girls) | Details |
| Standard | 5 | Hodgson, N (Neva) | 2 | 0 | 2 | Western Cape PS Individuals Championship 2024 (U7 Girls) | South African Junior Closed Chess Championships 2025 (U8 Girls) | Details |
| Rapid | 1 | Malherbe, A (Aasha) | 2 | 1 | 1 | Cape Town Open Chess Festival 2025 (Junior Rapid) | COGH 2026 (U10) | Details |
| Rapid | 2 | Waldeck, A (Aaron) | 2 | 0 | 2 | Curro Durbanville Chess Rapid Open 2024 (Beginner) | Cape Town Open Chess Festival 2025 (Junior Rapid) | Details |
| Rapid | 3 | Modise-Mgolodela, L (Lifalethu) | 2 | 1 | 1 | Laerskool Welgemoed Rapid 2024 (U8) | 2025 Kraaifontein Open Chess Championships (Rapid U10) | Details |
| Rapid | 4 | Bessesen, S (Sindre) | 2 | 1 | 1 | 2025 Kraaifontein Open Chess Championships (Rapid U10) | Cape Town Open Chess Festival 2025 (Junior Rapid) | Details |
| Rapid | 5 | Brand, E (Ethan) | 2 | 1 | 1 | Cape of Good Hope Open 2025 (U8) | COGH 2026 (U10) | Details |