PLAYER PAGE
Altus Grobbelaar
1090107941Cape Winelands (WCW)Personal
Main rating
| Rating | 1253.9 |
| K-factor | 36 |
| Floor | 824.1 |
| Highest | 1346.9 (2022-11-01) |
| Min/Max +/- allowed | 134 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1166.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1253.9 |
| K-factor | 36 |
| Floor | 824.1 |
| Highest | 1346.9 (2022-11-01) |
| Min/Max +/- allowed | 134.5 |
Standard rating
| Rating | 1257.5 |
| K-factor | 36 |
| Floor | 804.8 |
| Highest | 1304.8 (2022-12-01) |
| Min/Max +/- allowed | 142.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1147.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1257.5 |
| K-factor | 36 |
| Floor | 804.8 |
| Highest | 1304.8 (2022-12-01) |
| Min/Max +/- allowed | 142.8 |
Rapid rating
| Rating | 1240.1 |
| K-factor | 36 |
| Floor | 753.2 |
| Highest | 1253.2 (2022-09-01) |
| Min/Max +/- allowed | 153.7 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1070.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1240.1 |
| K-factor | 36 |
| Floor | 753.2 |
| Highest | 1253.2 (2022-09-01) |
| Min/Max +/- allowed | 153.7 |
Blitz rating
| Rating | 1218 |
| K-factor | 36 |
| Floor | 718 |
| Highest | 1270.7 (2020-02-01) |
| Min/Max +/- allowed | 149.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1218 |
| K-factor | 36 |
| Floor | 718 |
| Highest | 1270.7 (2020-02-01) |
| Min/Max +/- allowed | 149.9 |
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 Boys) | Standard | 2026-02-28 | 2026-02-28 | Cape Winelands | 5 | 1253.9 | 5 | 3 | 1324.5 | 11.1 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Marie Delport Memorial 2026 (Open) | Standard | 2026-01-31 | 2026-01-31 | Cape Winelands (WCW) | 6 | 1259.5 | 6 | 2 | 1207.4 | 0 | Details |
| 2 | WCSC Brian Raubenheimer Development 2025 (U17 Boys+Girls) | Rapid | 2025-11-29 | 2025-11-29 | Cape Winelands (WCW) | 5 | 1260.6 | 5 | 3 | 1258.5 | 0 | Details |
| 3 | Cape Winelands Top Schools 2025 (U17+U19) | Rapid | 2025-08-23 | 2025-08-23 | Cape Winelands (WCW) | 5 | 1261.3 | 0 | 0 | 0 | 0 | Details |
| 4 | Cape Winelands Schools Development 2025 (U15+U17) | Rapid | 2025-08-02 | 2025-08-02 | Cape Winelands (WCW) | 5 | 1261.3 | 5 | 3 | 1262.4 | 0 | Details |
| 5 | Cape Winelands Schools Prestige 2025 (U17 Boys) | Standard | 2025-03-08 | 2025-03-08 | Cape Winelands (WCW) | 5 | 1260.5 | 5 | 2 | 1273.5 | 0 | Details |
| 6 | Cape Winelands Schools - Trials 1 2025 (U17 Boys) | Standard | 2025-02-08 | 2025-02-08 | Cape Winelands (WCW) | 5 | 1244.9 | 5 | 3 | 1326.3 | 0 | Details |
| 7 | Marie Delport Memorial 2025 (Open) | Standard | 2025-01-25 | 2025-01-26 | Cape Winelands (WCW) | 6 | 1222.1 | 6 | 2 | 1199 | 0 | Details |
| 8 | Paarl Boys' High Chess Festival 2024 (Elite) | Standard | 2024-10-04 | 2024-10-05 | Cape Winelands (WCW) | 6 | 1239.1 | 4 | 1 | 1117.3 | 0 | Details |
| 9 | Cape Winelands - Top Schools 2024 (U15 Mixed) | Standard | 2024-07-27 | 2024-07-27 | Cape Winelands (WCW) | 5 | 1237 | 4 | 2 | 1251.6 | 0 | Details |
| 10 | Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) | Rapid | 2024-02-17 | 2024-02-17 | Cape Winelands (WCW) | 6 | 1273.8 | 6 | 2 | 1051.3 | 0 | Details |
| 11 | Cape Winelands - Marie Delport Memorial 2024 (Open) | Standard | 2024-01-27 | 2024-01-28 | Cape Winelands (WCW) | 6 | 1278.8 | 5 | 2 | 1260.1 | 0 | Details |
| 12 | CW Top Schools 2023 (U15 Mix) | Rapid | 2023-08-26 | 2023-08-26 | Cape Winelands (WCW) | 5 | 1289.7 | 5 | 2.5 | 1214.5 | 0 | Details |
| 13 | Cape Winelands Schools Chess - Trials 1 2023 (U15 Boys) | Standard | 2023-02-25 | 2023-02-25 | Cape Winelands (WCW) | 5 | 1324.1 | 5 | 2 | 1135.6 | 0 | Details |
| 14 | CW Grass Roots Tournament 2022 (U13 Boys) | Standard | 2022-11-19 | 2022-11-19 | Cape Winelands (WCW) | 5 | 1248.5 | 5 | 5 | 1669.4 | 0 | Details |
| 15 | Stellenbosch Primary 2022 (U13) | Rapid | 2022-08-13 | 2022-08-13 | Cape Winelands (WCW) | 6 | 1232.1 | 6 | 4 | 1339.5 | 0 | Details |
| 16 | Rhenish Primary Tournament 2022 (U14) | Rapid | 2022-05-14 | 2022-05-14 | Cape Winelands (WCW) | 5 | 1222.4 | 5 | 3 | 1304.6 | 0 | Details |
| 17 | Ceres Open 2022 (B) | Standard | 2022-04-23 | 2022-04-23 | Cape Winelands (WCW) | 6 | 1236.2 | 6 | 3 | 1172.9 | 0 | Details |
| 18 | Cape Winelands Schools 2022 (U13 Boys) | Standard | 2022-03-12 | 2022-03-12 | Cape Winelands (WCW) | 5 | 1231.7 | 5 | 3 | 1264.5 | 0 | Details |
| 19 | Central Winelands Schools Individual Trials 2022 (U13 Boys) | Rapid | 2022-02-19 | 2022-02-19 | Cape Winelands (WCW) | 5 | 1165.4 | 5 | 3 | 1317.1 | 0 | Details |
| 20 | Cape Winelands Open 2022 (U14) | Standard | 2022-02-12 | 2022-02-13 | Cape Winelands (WCW) | 6 | 1165.4 | 6 | 4 | 1335.8 | 0 | Details |
| 21 | Drakenstein Pioneers Inaugural 2020 (C) | Standard | 2020-03-14 | 2020-03-14 | Cape Winelands (WCW) | 5 | 1190.3 | 5 | 2 | 1053.8 | 0 | Details |
| 22 | Paul Roos Blitz 2020 | Blitz | 2020-02-22 | 2020-02-22 | Cape Winelands (WCW) | 9 | 1149.2 | 9 | 4 | 1276.8 | 0 | Details |
| 23 | 2020 Welgemoed Chess Challenge (U12) | Rapid | 2020-02-29 | 2020-02-29 | Cape Town (WCT) | 5 | 1149.2 | 5 | 3 | 1316.6 | 0 | Details |
| 24 | Cape Winelands Schools Trials 1 2020 (U11 Boys) | Rapid | 2020-02-08 | 2020-02-08 | Cape Winelands (WCW) | 6 | 1149.2 | 6 | 3 | 1244.1 | 0 | Details |
| 25 | Back to School Rapid 2020 (Boys) | Rapid | 2020-02-01 | 2020-02-01 | West Coast (WCU) | 5 | 1149.2 | 5 | 2 | 1117.9 | 0 | Details |
| 26 | 2019 Western Province League (E) | Standard | 2019-07-27 | 2019-08-10 | Cape Town (WCT) | 9 | 1113.9 | 3 | 2 | 1323.9 | 0 | Details |
| 27 | Stellenbosch Primary 2019 (U12) | Rapid | 2019-08-31 | 2019-08-31 | Cape Winelands (WCW) | 7 | 1113.9 | 7 | 4 | 1140.6 | 0 | Details |
| 28 | Cape Winelands Schools - Top Schools 2019 (U13 Mix) | Rapid | 2019-07-27 | 2019-07-27 | Cape Winelands (WCW) | 5 | 1087.7 | 5 | 4 | 1259.3 | 0 | Details |
| 29 | Drakenstein Dragons Rapid 2019 (U11) | Rapid | 2019-06-15 | 2019-06-15 | Cape Winelands (WCW) | 7 | 1078 | 7 | 3.5 | 1160.6 | 0 | Details |
| 30 | Rhenish Primary Chess Tournament 2019 (U12) | Rapid | 2019-05-11 | 2019-05-11 | Cape Winelands (WCW) | 7 | 1092.9 | 7 | 3 | 1011.5 | 0 | Details |
| 31 | Cape Winelands Open 2019 (U12) | Standard | 2019-04-27 | 2019-04-27 | Cape Winelands (WCW) | 5 | 1066.7 | 5 | 3.5 | 1208.2 | 0 | Details |
| 32 | Nelson Mandela Rapid 2019 (Primary School) | Rapid | 2019-03-02 | 2019-03-02 | Cape Town (WCT) | 5 | 1137.6 | 5 | 2 | 1029.7 | 0 | Details |
| 33 | Cape Winelands Schools Closed 2019 (U11 Boys) | Standard | 2019-03-16 | 2019-03-17 | Cape Winelands (WCW) | 7 | 1137.6 | 6 | 1 | 903.4 | 0 | Details |
| 34 | CW Schools Open 2019 (U11 Boys) | Rapid | 2019-02-02 | 2019-02-02 | Cape Winelands (WCW) | 6 | 1173.1 | 6 | 2 | 963.2 | 0 | Details |
| 35 | Drakenstein Dragons Rapid 2019 (U11) | Rapid | 2019-01-19 | 2019-01-19 | Cape Winelands (WCW) | 6 | 1179.8 | 5 | 2 | 1139.5 | 0 | Details |
| 36 | Rhenish Primary Chess Tournament 2018 (U10) | Rapid | 2018-05-12 | 2018-05-12 | Cape Winelands (WCW) | 7 | 1200 | 7 | 3 | 1092.8 | 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 | 6 |
| Wins | 2 |
| Draws | 0 |
| Losses | 4 |
| White | 3 |
| Black | 3 |
| White wins | 2 |
| Black wins | 0 |
| Score | 2 |
| Percent | 33.3 |
| Dp | -141.7 |
| AOR | 1349.1 |
| Performance | 1207.5 |
Game statistics (History)
| Games | 192 |
| Wins | 93 |
| Draws | 5 |
| Losses | 94 |
| White | 99 |
| Black | 93 |
| White wins | 47 |
| Black wins | 46 |
| Score | 95.5 |
| Percent | 49.7 |
| Dp | -2.2 |
| AOR | 1201.9 |
| Performance | 1199.7 |
Rankings (Main)
| National | |
| Overall | 8156 |
| Gender | 6634 |
| Age group | 1301 |
| Gender/Age | 1039 |
| Provincial | |
| Overall | 2351 |
| Gender | 1828 |
| Age group | 343 |
| Gender/Age | 252 |
| Regional | |
| Overall | 334 |
| Gender | 246 |
| Age group | 59 |
| Gender/Age | 36 |
Rankings (Standard)
| National | |
| Overall | 6904 |
| Gender | 5574 |
| Age group | 1152 |
| Gender/Age | 921 |
| Provincial | |
| Overall | 1935 |
| Gender | 1471 |
| Age group | 293 |
| Gender/Age | 216 |
| Regional | |
| Overall | 282 |
| Gender | 203 |
| Age group | 51 |
| Gender/Age | 33 |
Rankings (Rapid)
| National | |
| Overall | 3205 |
| Gender | 2573 |
| Age group | 428 |
| Gender/Age | 338 |
| Provincial | |
| Overall | 1303 |
| Gender | 1028 |
| Age group | 168 |
| Gender/Age | 127 |
| Regional | |
| Overall | 179 |
| Gender | 135 |
| Age group | 28 |
| Gender/Age | 20 |
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 | 6 |
| Score | 2 |
| Percent | 33.3 |
| Aor | 1349.1 |
| Dp | -141.7 |
| Prat | 1207.5 |
Performance (12 months)
| Games | 21 |
| Score | 10 |
| Percent | 47.6 |
| Aor | 1268.7 |
| Dp | -20.2 |
| Prat | 1248.4 |
Performance (History)
| Games | 192 |
| Score | 95.5 |
| Percent | 49.7 |
| Aor | 1201.9 |
| Dp | -2.2 |
| Prat | 1199.7 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Lombaard, R (Romelio) | 3 | 2 | 1 | Cape Winelands Schools 2022 (U13 Boys) | Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) | Details |
| Overall | 2 | Zungula, C (Chulumanco) | 3 | 3 | 0 | Rhenish Primary Chess Tournament 2018 (U10) | Rhenish Primary Chess Tournament 2019 (U12) | Details |
| Overall | 3 | Geland, R (Remarqio) | 2 | 0 | 2 | Cape Winelands Schools Development 2025 (U15+U17) | WCSC Brian Raubenheimer Development 2025 (U17 Boys+Girls) | Details |
| Overall | 4 | Koopman, J (Jayden) | 2 | 1 | 1 | Cape Winelands Open 2022 (U14) | Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) | Details |
| Overall | 5 | Robertson, J (Jonah) | 2 | 2 | 0 | Marie Delport Memorial 2025 (Open) | Marie Delport Memorial 2026 (Open) | Details |
| Standard | 1 | Goosen, P (Pierre) | 2 | 1 | 1 | Cape Winelands - Marie Delport Memorial 2024 (Open) | Marie Delport Memorial 2025 (Open) | Details |
| Standard | 2 | De Villiers, DL (Dawid Lukas) | 2 | 2 | 0 | Paarl Boys' High Chess Festival 2024 (Elite) | Cape Winelands Schools Prestige 2025 (U17 Boys) | Details |
| Standard | 3 | Jansen, V (Verron) | 2 | 0 | 2 | Cape Winelands Open 2019 (U12) | Cape Winelands Schools Prestige 2025 (U17 Boys) | Details |
| Standard | 4 | Springveldt, L (Lael) | 2 | 2 | 0 | Cape Winelands Open 2022 (U14) | Cape Winelands Schools 2022 (U13 Boys) | Details |
| Standard | 5 | Robertson, J (Jonah) | 2 | 2 | 0 | Marie Delport Memorial 2025 (Open) | Marie Delport Memorial 2026 (Open) | Details |
| Rapid | 1 | Zungula, C (Chulumanco) | 3 | 3 | 0 | Rhenish Primary Chess Tournament 2018 (U10) | Rhenish Primary Chess Tournament 2019 (U12) | Details |
| Rapid | 2 | Hendricks, M (Meagan) | 2 | 2 | 0 | Cape Winelands Schools Development 2025 (U15+U17) | WCSC Brian Raubenheimer Development 2025 (U17 Boys+Girls) | Details |
| Rapid | 3 | Winter, C (Cuthanzario) | 2 | 2 | 0 | Drakenstein Dragons Rapid 2019 (U11) | Drakenstein Dragons Rapid 2019 (U11) | Details |
| Rapid | 4 | Lombaard, R (Romelio) | 2 | 2 | 0 | CW Top Schools 2023 (U15 Mix) | Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) | Details |
| Rapid | 5 | Maart, M (Mia) | 2 | 1 | 1 | Rhenish Primary Tournament 2022 (U14) | Stellenbosch Primary 2022 (U13) | Details |