PLAYER PAGE
Aleza Roos
209085017Cape Winelands (WCW)Personal
Main rating
| Rating | 1216.3 |
| K-factor | 36 |
| Floor | 722.2 |
| Highest | 1222.2 (2024-04-01) |
| Min/Max +/- allowed | 161 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1047.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1216.3 |
| K-factor | 36 |
| Floor | 722.2 |
| Highest | 1222.2 (2024-04-01) |
| Min/Max +/- allowed | 160.7 |
Standard rating
| Rating | 1111.7 |
| K-factor | 40 |
| Floor | 624.6 |
| Highest | 1200 (2024-11-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 857.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1111.7 |
| K-factor | 40 |
| Floor | 624.6 |
| Highest | 1200 (2024-11-01) |
| Min/Max +/- allowed | 165.8 |
Rapid rating
| Rating | 1230.7 |
| K-factor | 36 |
| Floor | 730.7 |
| Highest | 1230.7 (2026-02-28) |
| Min/Max +/- allowed | 158.7 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1044.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1230.7 |
| K-factor | 36 |
| Floor | 730.7 |
| Highest | 1230.7 (2026-02-28) |
| Min/Max +/- allowed | 158.7 |
Blitz rating
| Rating | 600 |
| K-factor | 40 |
| Floor | 500 |
| Highest | 1200 (2024-03-01) |
| 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 | 600 |
| K-factor | 40 |
| Floor | 500 |
| Highest | 1200 (2024-03-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Cape Winelands Schools - High School Trials 1 2026 (U18 Girls) | Standard | 2026-02-28 | 2026-02-28 | Cape Winelands | 5 | 1216.4 | 5 | 3 | 1300 | 15.8 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Hoërskool Stellenbosch Graderingstoernooi 2026 (U15+U20) | Rapid | 2026-02-14 | 2026-02-14 | Cape Winelands (WCW) | 5 | 1206.5 | 5 | 3 | 1304.6 | 0 | Details |
| 2 | UCT Open Chess Championship 2024 (Intermediate) | Standard | 2024-10-12 | 2024-10-13 | Cape Town (WCT) | 6 | 1222.2 | 5 | 1 | 1074.4 | 0 | Details |
| 3 | Cape Winelands Schools - Prestige 2024 (U15 Girls) | Standard | 2024-03-02 | 2024-03-02 | Cape Winelands (WCW) | 5 | 1215 | 5 | 2 | 1249.2 | 0 | Details |
| 4 | Cape Winelands Schools - HS Trials 1 2024 (U15 Girls) | Rapid | 2024-02-17 | 2024-02-17 | Cape Winelands (WCW) | 6 | 1174.6 | 6 | 4 | 1392.3 | 0 | Details |
| 5 | Western Cape Closed Championship 2023 (U16) | Rapid | 2023-09-23 | 2023-09-23 | Cape Town (WCT) | 6 | 1193 | 5 | 1 | 1057.8 | 0 | Details |
| 6 | Stellenbosch Primary 2022 (U13) | Rapid | 2022-08-13 | 2022-08-13 | Cape Winelands (WCW) | 6 | 1191.3 | 6 | 3 | 1201.8 | 0 | Details |
| 7 | Western Cape Schools 2022 (U13 Girls) | Standard | 2022-05-28 | 2022-05-29 | Cape Winelands (WCW) | 6 | 1176.1 | 6 | 2 | 1160.2 | 0 | Details |
| 8 | Rhenish Primary Tournament 2022 (U14) | Rapid | 2022-05-14 | 2022-05-14 | Cape Winelands (WCW) | 5 | 1176.1 | 5 | 3 | 1317.6 | 0 | Details |
| 9 | Cape Winelands Schools 2022 (U13 Girls) | Standard | 2022-03-12 | 2022-03-12 | Cape Winelands (WCW) | 5 | 1134.3 | 5 | 3 | 1342.7 | 0 | Details |
| 10 | Central Winelands Schools Individual Trials 2022 (U13 Girls) | Rapid | 2022-02-19 | 2022-02-19 | Cape Winelands (WCW) | 5 | 1095 | 5 | 3.5 | 1342.8 | 0 | Details |
| 11 | OCF Chess Tournament 2 2020 (U12) | Standard | 2020-02-01 | 2020-02-01 | Overberg (WOS) | 5 | 1004.4 | 5 | 2.5 | 1196.5 | 0 | Details |
| 12 | Cape Winelands Schools Trials 1 2020 (U11 Girls) | Rapid | 2020-02-08 | 2020-02-08 | Cape Winelands (WCW) | 6 | 1004.4 | 6 | 4 | 1328 | 0 | Details |
| 13 | 2019 South African Junior Team Championships (U12 Girls) | Classical | 2020-01-04 | 2020-01-08 | 4 Knights (4K) | 7 | 1003.2 | 6 | 2 | 1007.5 | 0 | Details |
| 14 | Western Cape Top Schools 2019 (U11 Mix) | Standard | 2019-08-31 | 2019-09-01 | Cape Winelands (WCW) | 5 | 1038.4 | 3 | 0 | 750.3 | 0 | Details |
| 15 | Cape Winelands Schools - Top Schools 2019 (U11 Mix) | Rapid | 2019-07-27 | 2019-07-27 | Cape Winelands (WCW) | 5 | 984.9 | 3 | 2 | 1354.2 | 0 | Details |
| 16 | Stellenberg Youth Chess Championship 2019 (B) | Standard | 2019-04-30 | 2019-05-01 | Cape Town (WCT) | 6 | 989.2 | 5 | 0 | 784.2 | 0 | Details |
| 17 | Western Cape Schools Individuals 2019 (U11 Girls) | Standard | 2019-05-18 | 2019-05-19 | Eden (WEG) | 6 | 989.2 | 6 | 2.5 | 1049.6 | 0 | Details |
| 18 | Steinitz Chess Festival 2019 (C) | Standard | 2019-04-05 | 2019-04-07 | Cape Town (WCT) | 6 | 956 | 2 | 0 | 744.5 | 0 | Details |
| 19 | Cape Winelands Open 2019 (U12) | Standard | 2019-04-27 | 2019-04-27 | Cape Winelands (WCW) | 5 | 956 | 5 | 2 | 1028.8 | 0 | Details |
| 20 | Cape Winelands Schools Closed 2019 (U11 Girls) | Standard | 2019-03-16 | 2019-03-17 | Cape Winelands (WCW) | 7 | 871.7 | 7 | 3.5 | 1187.8 | 0 | Details |
| 21 | CW Schools Open 2019 (U11 Girls) | Rapid | 2019-02-02 | 2019-02-02 | Cape Winelands (WCW) | 6 | 795.4 | 6 | 3.5 | 1252.9 | 0 | Details |
| 22 | Cape Winelands Schools Chess - Top Schools 2018 (U9+U11 Mix) | Rapid | 2018-07-28 | 2018-07-28 | Cape Winelands (WCW) | 5 | 815.6 | 4 | 0 | 670.9 | 0 | Details |
| 23 | Stellenberg Youth Chess Champs 2018 (C) | Standard | 2018-06-22 | 2018-06-23 | Cape Town (WCT) | 6 | 844.7 | 6 | 0 | 726 | 0 | Details |
| 24 | Western Cape Schools Individuals 2018 (U9 Girls) | Standard | 2018-05-19 | 2018-05-20 | Overberg (WOS) | 6 | 688.1 | 5 | 2 | 840.8 | 0 | Details |
| 25 | Crossroads Open Chess Championship 2018 (C) | Classical | 2018-04-27 | 2018-04-29 | Cape Town (WCT) | 6 | 656.1 | 5 | 1 | 867.6 | 0 | Details |
| 26 | Cape Winelands Schools Trials 1 2018 (U9 Girls) | Rapid | 2018-03-03 | 2018-03-03 | Cape Winelands (WCW) | 6 | 500 | 6 | 3 | 924.3 | 0 | Details |
| 27 | Cape Winelands Schools Prestige 2018 (U9 Girls) | Standard | 2018-03-24 | 2018-03-25 | Cape Winelands (WCW) | 7 | 500 | 7 | 4.5 | 1011.7 | 0 | Details |
| 28 | South African Junior Team Championships 2017 (U10D) | Classical | 2018-01-04 | 2018-01-08 | 4 Knights (4K) | 7 | 600 | 7 | 1 | 500 | 0 | Details |
| 29 | Gpca - Pitt Memorial 2017 (U10) | Rapid | 2017-10-28 | 2017-10-28 | Western Province (WP) | 6 | 500 | 6 | 2 | 500 | 0 | Details |
| 30 | Ocf Open Bredasdorp 2017 | Standard | 2017-09-02 | 2017-09-02 | Overberg (WOS) | 5 | 535 | 5 | 0.5 | 500 | 0 | Details |
| 31 | Kleinmond Chess Festival 2017 (B) | Standard | 2017-08-19 | 2017-08-19 | Overberg (WOS) | 5 | 558 | 5 | 2 | 500 | 0 | Details |
| 32 | Stellenberg Youth Chess Champs 2017 (C) | Standard | 2017-07-01 | 2017-07-01 | Western Province (WP) | 5 | 608 | 5 | 2 | 500 | 0 | Details |
| 33 | Western Cape Championship 2017 (U9 Girls) | Standard | 2017-05-20 | 2017-05-21 | Western Province (WP) | 6 | 500 | 6 | 3 | 592 | 0 | Details |
| 34 | Beaumont Family Chess Tournament 2017 (U9) | Rapid | 2017-05-06 | 2017-05-06 | Western Province (WP) | 5 | 500 | 5 | 4 | 818 | 0 | Details |
| 35 | Laerskool Stellenbosch 2016 (O10 Meisies) | Rapid | 2016-10-15 | 2016-10-15 | Boland (WB) | 7 | 0 | 5 | 2 | 432 | 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 | 5 |
| Wins | 3 |
| Draws | 0 |
| Losses | 2 |
| White | 3 |
| Black | 2 |
| White wins | 2 |
| Black wins | 1 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1219.6 |
| Performance | 1304.6 |
Game statistics (History)
| Games | 147 |
| Wins | 56 |
| Draws | 6 |
| Losses | 85 |
| White | 74 |
| Black | 73 |
| White wins | 25 |
| Black wins | 31 |
| Score | 59 |
| Percent | 40.1 |
| Dp | -83.8 |
| AOR | 1139.1 |
| Performance | 1055.2 |
Rankings (Main)
| National | |
| Overall | 11019 |
| Gender | 2246 |
| Age group | 1745 |
| Gender/Age | 365 |
| Provincial | |
| Overall | 3149 |
| Gender | 728 |
| Age group | 457 |
| Gender/Age | 124 |
| Regional | |
| Overall | 470 |
| Gender | 127 |
| Age group | 82 |
| Gender/Age | 28 |
Rankings (Standard)
| 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 (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 | 3 |
| Percent | 60 |
| Aor | 1219.6 |
| Dp | 85 |
| Prat | 1304.6 |
Performance (12 months)
| Games | 5 |
| Score | 3 |
| Percent | 60 |
| Aor | 1219.6 |
| Dp | 85 |
| Prat | 1304.6 |
Performance (History)
| Games | 147 |
| Score | 59 |
| Percent | 40.1 |
| Aor | 1139.1 |
| Dp | -83.8 |
| Prat | 1055.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Nortje, D (Dell-Maree) | 6 | 4 | 2 | Cape Winelands Schools Prestige 2018 (U9 Girls) | Western Cape Schools 2022 (U13 Girls) | Details |
| Overall | 2 | Nieuwoudt, N (Noreht) | 3 | 2 | 1 | Cape Winelands Schools Prestige 2018 (U9 Girls) | Central Winelands Schools Individual Trials 2022 (U13 Girls) | Details |
| Overall | 3 | Pretorius, A (Amanda Karen) | 3 | 2 | 1 | Crossroads Open Chess Championship 2018 (C) | Western Cape Closed Championship 2023 (U16) | Details |
| Overall | 4 | Ntlahla, A (Anathi) | 3 | 1 | 2 | Cape Winelands Schools Prestige 2018 (U9 Girls) | Cape Winelands Schools - Prestige 2024 (U15 Girls) | Details |
| Overall | 5 | Grove, E (Emily) | 3 | 1 | 2 | Stellenberg Youth Chess Champs 2018 (C) | Western Cape Closed Championship 2023 (U16) | Details |
| Standard | 1 | Nortje, D (Dell-Maree) | 4 | 3 | 1 | Cape Winelands Schools Prestige 2018 (U9 Girls) | Western Cape Schools 2022 (U13 Girls) | Details |
| Standard | 2 | Grove, E (Emily) | 2 | 1 | 1 | Stellenberg Youth Chess Champs 2018 (C) | Western Cape Schools 2022 (U13 Girls) | Details |
| Standard | 3 | Wearing, E (Ethan) | 2 | 1 | 1 | South African Junior Team Championships 2017 (U10D) | Western Cape Top Schools 2019 (U11 Mix) | Details |
| Standard | 4 | Pretorius, A (Amanda Karen) | 2 | 1 | 1 | Crossroads Open Chess Championship 2018 (C) | Western Cape Schools Individuals 2018 (U9 Girls) | Details |
| Standard | 5 | Mente, L (Limi) | 2 | 2 | 0 | Cape Winelands Schools Closed 2019 (U11 Girls) | Cape Winelands Schools 2022 (U13 Girls) | Details |
| Rapid | 1 | Steyn, N (Nicole) | 2 | 1 | 1 | Cape Winelands Schools Trials 1 2018 (U9 Girls) | CW Schools Open 2019 (U11 Girls) | Details |
| Rapid | 2 | Nortje, D (Dell-Maree) | 2 | 1 | 1 | Cape Winelands Schools Trials 1 2018 (U9 Girls) | Cape Winelands Schools Trials 1 2020 (U11 Girls) | Details |