PLAYER PAGE
Euclides Euclides Koester
186016097Cape Town (WCT)Personal
Main rating
| Rating | 1710.3 |
| K-factor | 28 |
| Floor | 1210.3 |
| Highest | 1710.3 (2025-11-01) |
| Min/Max +/- allowed | 80 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1355.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1710.3 |
| K-factor | 28 |
| Floor | 1210.3 |
| Highest | 1710.3 (2025-11-01) |
| Min/Max +/- allowed | 80.1 |
Standard rating
| Rating | 1693 |
| K-factor | 28 |
| Floor | 1193 |
| Highest | 1693 (2025-11-01) |
| Min/Max +/- allowed | 82.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1211.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1693 |
| K-factor | 28 |
| Floor | 1193 |
| Highest | 1693 (2025-11-01) |
| Min/Max +/- allowed | 82.1 |
Rapid rating
| Rating | 1536.7 |
| K-factor | 32 |
| Floor | 1036.7 |
| Highest | 1536.7 (2019-03-01) |
| Min/Max +/- allowed | 102.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1536.7 |
| K-factor | 32 |
| Floor | 1036.7 |
| Highest | 1536.7 (2019-03-01) |
| Min/Max +/- allowed | 102.6 |
Blitz rating
| Rating | 1568.6 |
| K-factor | 32 |
| Floor | 1068.6 |
| Highest | 1568.6 (2025-05-05) |
| Min/Max +/- allowed | 98.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1568.6 |
| K-factor | 32 |
| Floor | 1068.6 |
| Highest | 1568.6 (2025-05-05) |
| Min/Max +/- allowed | 98.1 |
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 | Cape Town Chess Federation Club League 2025 (B) | Classical | 2025-07-26 | 2025-09-27 | Cape Town (WCT) | 11 | 1700.6 | 10 | 5.5 | 1738.7 | 0 | Details |
| 2 | 2025 CT Chess Club Blitz Championship | Blitz | 2025-03-19 | 2025-03-19 | Cape Town (WCT) | 9 | 1698.7 | 9 | 5 | 1722.1 | 0 | Details |
| 3 | CT League 2024 (A) | Classical | 2024-07-20 | 2024-09-07 | Cape Town (WCT) | 11 | 1704.9 | 2 | 0 | 1695.9 | 0 | Details |
| 4 | WP Club League 2023 (A) | Classical | 2023-07-29 | 2023-09-09 | Cape Town (WCT) | 11 | 1572.2 | 8 | 5 | 1786.4 | 0 | Details |
| 5 | Western Cape Club Championship 2022 (Tier 2) | Standard | 2022-10-07 | 2022-10-09 | Cape Town (WCT) | 6 | 1611.4 | 6 | 2 | 1334.1 | 0 | Details |
| 6 | 2022 Western Province Club League (Premier) | Classical | 2022-08-20 | 2022-10-01 | Cape Town (WCT) | 11 | 1611.4 | 6 | 3.5 | 1582.2 | 0 | Details |
| 7 | 2019 Western Province League (B) | Classical | 2019-07-27 | 2019-09-07 | Cape Town (WCT) | 11 | 1503.9 | 10 | 8 | 1695 | 0 | Details |
| 8 | 2019 National Club Chess Championships (B) | Classical | 2019-09-27 | 2019-09-29 | Cape Town (WCT) | 6 | 1503.9 | 6 | 5.5 | 1764.2 | 0 | Details |
| 9 | 2018 Western Province League (B) | Standard | 2018-08-04 | 2018-09-15 | Cape Town (WCT) | 11 | 1536.7 | 3 | 0 | 1272.7 | 0 | Details |
| 10 | Eldo Smart Memorial Rapid Tournament 2018 | Rapid | 2018-06-16 | 2018-06-16 | Cape Town (WCT) | 7 | 1536.7 | 0 | 0 | 0 | 0 | Details |
| 11 | 2017 Western Province League (B) | Standard | 2017-07-27 | 2017-09-16 | Western Province (WP) | 11 | 1402 | 9 | 7 | 1811 | 0 | Details |
| 12 | 2017 Elsies River Open (Open) | Rapid | 2017-05-20 | 2017-05-20 | Western Province (WP) | 7 | 1123 | 7 | 5.5 | 1616 | 0 | Details |
| 13 | Western Province League 2016 (C) | Standard | 2016-07-23 | 2016-10-01 | Western Province (WP) | 11 | 1362 | 9 | 7 | 1529 | 0 | Details |
| 14 | Chess Wp Blitz Festival 2016 Individual Blitz | Blitz | 2016-10-29 | 2016-10-29 | Western Province (WP) | 7 | 1033 | 7 | 4 | 1547 | 0 | Details |
| 15 | Chess Wp Blitz Festival 2016 Team Blitz | Blitz | 2016-10-29 | 2016-10-29 | Western Province (WP) | 7 | 1033 | 7 | 6 | 1648 | 0 | Details |
| 16 | Mackie Memorial Chess Tournament 2016 (Chessa) | Standard | 2016-10-07 | 2016-10-09 | Western Province (WP) | 5 | 1362 | 0 | 0 | 0 | 0 | Details |
| 17 | Wc Club Championship 2015 (A) | Standard | 2016-03-12 | 2016-03-13 | West Coast (WCU) | 5 | 1345 | 5 | 2.5 | 1447 | 0 | Details |
| 18 | Western Province League 2015 (D) | Standard | 2015-07-25 | 2015-10-03 | Western Province (WP) | 7 | 1341 | 7 | 5.5 | 1225 | 0 | Details |
| 19 | Wp Legends Chess Championship 2015 (B-Section) | Standard | 2015-05-01 | 2015-05-03 | Western Province (WP) | 7 | 1326 | 7 | 5 | 1360 | 0 | Details |
| 20 | Cape Town International Classic (B Section) | Standard | 2015-03-26 | 2015-03-26 | Western Province (WP) | 7 | 1304 | 7 | 5.5 | 1350 | 0 | Details |
| 21 | Western Province League 2014 (C-Division) | Classical | 2015-02-17 | 2015-02-17 | Western Province (WP) | 11 | 1253 | 6 | 4.5 | 1510 | 0 | Details |
| 22 | Western Cape Club Championships 2014 - A-Section | Standard | 2014-12-06 | 2014-12-07 | West Coast (WCU) | 6 | 1175 | 6 | 2.5 | 1666 | 0 | Details |
| 23 | Dsk Rapid Open 2014 (A-Section) | Rapid | 2014-11-15 | 2014-11-15 | Western Province (WP) | 7 | 1033 | 7 | 4 | 1546 | 0 | Details |
| 24 | Wp League 2012 (B Division) | Standard | 2012-08-14 | 2012-10-20 | Western Province (WP) | 11 | 1033 | 8 | 5 | 1664 | 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 | 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 (History)
| Games | 60 |
| Wins | 31 |
| Draws | 7 |
| Losses | 22 |
| White | 29 |
| Black | 31 |
| White wins | 11 |
| Black wins | 20 |
| Score | 34.5 |
| Percent | 57.5 |
| Dp | 63.8 |
| AOR | 1593.2 |
| Performance | 1657 |
Rankings (Main)
| National | |
| Overall | 449 |
| Gender | 424 |
| Age group | 271 |
| Gender/Age | 258 |
| Provincial | |
| Overall | 142 |
| Gender | 135 |
| Age group | 89 |
| Gender/Age | 83 |
| Regional | |
| Overall | 111 |
| Gender | 106 |
| Age group | 70 |
| Gender/Age | 66 |
Rankings (Standard)
| National | |
| Overall | 498 |
| Gender | 469 |
| Age group | 280 |
| Gender/Age | 268 |
| Provincial | |
| Overall | 147 |
| Gender | 136 |
| Age group | 89 |
| Gender/Age | 83 |
| Regional | |
| Overall | 116 |
| Gender | 109 |
| Age group | 71 |
| Gender/Age | 67 |
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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 19 |
| Score | 10.5 |
| Percent | 55.3 |
| Aor | 1686.1 |
| Dp | 44.7 |
| Prat | 1730.8 |
Performance (History)
| Games | 60 |
| Score | 34.5 |
| Percent | 57.5 |
| Aor | 1593.2 |
| Dp | 63.8 |
| Prat | 1657 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Palmer, RN (Reegan) | 2 | 2 | 0 | 2022 Western Province Club League (Premier) | Western Cape Club Championship 2022 (Tier 2) | Details |
| Standard | 1 | Palmer, RN (Reegan) | 2 | 2 | 0 | 2022 Western Province Club League (Premier) | Western Cape Club Championship 2022 (Tier 2) | Details |
