PLAYER PAGE
Jovanne Herder
104086077Cape Town (WCT)Personal
Main rating
| Rating | 1370.1 |
| K-factor | 36 |
| Floor | 891.2 |
| Highest | 1469.9 (2024-09-01) |
| Min/Max +/- allowed | 113 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1267.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1370.1 |
| K-factor | 36 |
| Floor | 891.2 |
| Highest | 1469.9 (2024-09-01) |
| Min/Max +/- allowed | 112.9 |
Standard rating
| Rating | 1349.4 |
| K-factor | 36 |
| Floor | 869.7 |
| Highest | 1447.7 (2024-09-01) |
| Min/Max +/- allowed | 116.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1230.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1349.4 |
| K-factor | 36 |
| Floor | 869.7 |
| Highest | 1447.7 (2024-09-01) |
| Min/Max +/- allowed | 116.5 |
Rapid rating
| Rating | 1266.4 |
| K-factor | 36 |
| Floor | 766.4 |
| Highest | 1354.3 (2023-07-01) |
| Min/Max +/- allowed | 133.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1255.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1266.4 |
| K-factor | 36 |
| Floor | 766.4 |
| Highest | 1354.3 (2023-07-01) |
| Min/Max +/- allowed | 133.1 |
Blitz rating
| Rating | 1007.8 |
| K-factor | 40 |
| Floor | 507.8 |
| Highest | 1272.7 (2024-02-01) |
| Min/Max +/- allowed | 149.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1007.8 |
| K-factor | 40 |
| Floor | 507.8 |
| Highest | 1272.7 (2024-02-01) |
| Min/Max +/- allowed | 149.5 |
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 | 1383.4 | 8 | 3.5 | 1405.4 | 0 | Details |
| 2 | Cape Town Chess Federation Club League 2025 (D) | Classical | 2025-07-26 | 2025-09-27 | Cape Town (WCT) | 11 | 1383.4 | 4 | 1.5 | 1261.2 | 0 | Details |
| 3 | Blackjacks Chess Club Rapid Championship 2025 | Rapid | 2025-06-21 | 2025-06-21 | Cape Town (WCT) | 6 | 1370 | 5 | 2 | 1379.4 | 0 | Details |
| 4 | Bellville Rapid 2025 (B) | Rapid | 2025-06-07 | 2025-06-07 | Cape Town (WCT) | 6 | 1370 | 6 | 4 | 1501 | 0 | Details |
| 5 | Hermanus Chess Club Open 2025 (Intermediate) | Rapid | 2025-04-12 | 2025-04-12 | Overberg (WOS) | 7 | 1373.4 | 7 | 3 | 1347.5 | 0 | Details |
| 6 | Cape Town Open Chess Festival 2025 (C) | Standard | 2025-03-22 | 2025-03-23 | Cape Town (WCT) | 6 | 1391.2 | 5 | 2.5 | 1258.3 | 0 | Details |
| 7 | Western Cape Closed 2025 (C) | Standard | 2025-03-08 | 2025-03-09 | Cape Town (WCT) | 6 | 1391.2 | 6 | 4 | 1417.1 | 0 | Details |
| 8 | CT League 2024 (C) | Classical | 2024-07-20 | 2024-09-07 | Cape Town (WCT) | 11 | 1326.4 | 1 | 1 | 1742.3 | 0 | Details |
| 9 | CT League 2024 (D) | Standard | 2024-08-03 | 2024-08-03 | Cape Town (WCT) | 6 | 1326.4 | 3 | 2 | 1415.7 | 0 | Details |
| 10 | Cape Town Chess Federation Closed Chess Championships 2024 (D) | Classical | 2024-06-15 | 2024-06-17 | Cape Town (WCT) | 6 | 1308.4 | 5 | 3 | 1385.8 | 0 | Details |
| 11 | Steinitz Club Team Blitz Championship 2024 | Blitz | 2024-02-15 | 2024-02-15 | Cape Town (WCT) | 7 | 1305.2 | 7 | 2 | 1447.5 | 0 | Details |
| 12 | WP Club League 2023 (B) | Classical | 2023-07-29 | 2023-09-09 | Cape Town (WCT) | 11 | 1255.1 | 4 | 2 | 1207.8 | 0 | Details |
| 13 | Western Cape Closed Championship 2023 (D) | Standard | 2023-09-24 | 2023-09-25 | Cape Town (WCT) | 6 | 1255.1 | 6 | 3.5 | 1398.8 | 0 | Details |
| 14 | Western Cape Closed Championship 2023 (Blitz) | Blitz | 2023-09-23 | 2023-09-25 | Cape Town (WCT) | 7 | 1255.1 | 7 | 2.5 | 1377.4 | 0 | Details |
| 15 | Cape Town Junior Chess League Finals 2023 (U20A) | Rapid | 2023-09-16 | 2023-09-16 | Cape Town (WCT) | 7 | 1255.1 | 6 | 2.5 | 1419 | 0 | Details |
| 16 | Cape Town Junior Chess League - Round 1 2023 (U20) | Rapid | 2023-07-22 | 2023-07-22 | Cape Town (WCT) | 7 | 1225.2 | 7 | 4 | 1429.9 | 0 | Details |
| 17 | Western Cape Club Championship 2022 (Tier 2) | Standard | 2022-10-07 | 2022-10-09 | Cape Town (WCT) | 6 | 1255.8 | 6 | 1 | 1131.4 | 0 | Details |
| 18 | 2022 Western Province Club League (B) | Classical | 2022-08-20 | 2022-10-01 | Cape Town (WCT) | 11 | 1255.8 | 4 | 1 | 1219.8 | 0 | Details |
| 19 | 2022 Western Province Club League (D) | Standard | 2022-08-27 | 2022-10-01 | Cape Town (WCT) | 7 | 1255.8 | 4 | 1.5 | 1259.3 | 0 | Details |
| 20 | Metro North Individual Trials 2020 (U17) | Standard | 2020-02-07 | 2020-02-08 | Cape Town (WCT) | 6 | 1192.5 | 6 | 4 | 1563.4 | 0 | Details |
| 21 | 2019 Western Province League (C) | Classical | 2019-07-27 | 2019-09-07 | Cape Town (WCT) | 11 | 1199.7 | 1 | 0 | 992.4 | 0 | Details |
| 22 | 2019 Western Province League (E) | Standard | 2019-07-27 | 2019-08-10 | Cape Town (WCT) | 9 | 1205.4 | 8 | 4 | 1175.9 | 0 | Details |
| 23 | 2019 Elsies River Open (Open) | Standard | 2019-06-22 | 2019-06-23 | Cape Town (WCT) | 6 | 1176.2 | 5 | 3 | 1298.6 | 0 | Details |
| 24 | 2019 Western Province Open (Open) | Standard | 2019-05-25 | 2019-05-26 | Cape Town (WCT) | 6 | 1172.7 | 6 | 3.5 | 1182 | 0 | Details |
| 25 | Crossroads Open Chess Championship 2019 (C) | Standard | 2019-04-27 | 2019-04-28 | Cape Town (WCT) | 6 | 1181.1 | 6 | 3.5 | 1100.6 | 0 | Details |
| 26 | Metro School Chess Closed Individual Trials 2019 (U15 Boys) | Standard | 2019-03-01 | 2019-03-02 | Cape Town (WCT) | 6 | 1131.3 | 6 | 2.5 | 1063.8 | 0 | Details |
| 27 | District North Schools Chess Trials 2019 (U15) | Standard | 2019-01-25 | 2019-01-26 | Cape Town (WCT) | 6 | 1036.7 | 6 | 4 | 1472.7 | 0 | Details |
| 28 | 2018 Western Province League (D) | Standard | 2018-08-04 | 2018-09-15 | Cape Town (WCT) | 11 | 961.1 | 4 | 1 | 1007 | 0 | Details |
| 29 | 2018 Western Province League (E) | Standard | 2018-08-04 | 2018-09-15 | Cape Town (WCT) | 7 | 961.1 | 4 | 3 | 1359.9 | 0 | Details |
| 30 | Grassy Park Open 2018 (B) | Standard | 2018-06-29 | 2018-07-01 | Cape Town (WCT) | 6 | 961.1 | 0 | 0 | 0 | 0 | Details |
| 31 | Crossroads Open Chess Championship 2018 (C) | Classical | 2018-04-27 | 2018-04-29 | Cape Town (WCT) | 6 | 824.7 | 6 | 4.5 | 1308.8 | 0 | Details |
| 32 | 2018 Cape of Good Hope Open Chess Championships (C) | Standard | 2018-01-26 | 2018-01-28 | Cape Town (WCT) | 6 | 873.8 | 6 | 3 | 672.6 | 0 | Details |
| 33 | Super C Junior Chess Tournament 2017 (Under 13) | Standard | 2017-09-15 | 2017-09-16 | Western Province (WP) | 5 | 841 | 4 | 4 | 979 | 0 | Details |
| 34 | 2017 Western Province League (D) | Standard | 2017-08-05 | 2017-09-16 | Western Province (WP) | 7 | 841 | 2 | 1 | 1142 | 0 | Details |
| 35 | 2017 Elsies River Open (U13) | Rapid | 2017-05-20 | 2017-05-20 | Western Province (WP) | 7 | 100 | 0 | 0 | 0 | 0 | Details |
| 36 | Wp Open 2017 (C) | Standard | 2017-03-03 | 2017-03-05 | Western Province (WP) | 6 | 500 | 5 | 3 | 906 | 0 | Details |
| 37 | Cape Of Good Hope Open 2017 (C) | Standard | 2017-01-27 | 2017-01-29 | Western Province (WP) | 7 | 0 | 6 | 2.5 | 790 | 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 | 165 |
| Wins | 73 |
| Draws | 19 |
| Losses | 73 |
| White | 79 |
| Black | 86 |
| White wins | 32 |
| Black wins | 41 |
| Score | 82.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1297.6 |
| Performance | 1297.6 |
Rankings (Main)
| National | |
| Overall | 3930 |
| Gender | 3302 |
| Age group | 1142 |
| Gender/Age | 1050 |
| Provincial | |
| Overall | 1191 |
| Gender | 959 |
| Age group | 326 |
| Gender/Age | 297 |
| Regional | |
| Overall | 579 |
| Gender | 495 |
| Age group | 205 |
| Gender/Age | 189 |
Rankings (Standard)
| National | |
| Overall | 4018 |
| Gender | 3357 |
| Age group | 1063 |
| Gender/Age | 978 |
| Provincial | |
| Overall | 1153 |
| Gender | 910 |
| Age group | 282 |
| Gender/Age | 254 |
| Regional | |
| Overall | 563 |
| Gender | 473 |
| Age group | 188 |
| Gender/Age | 172 |
Rankings (Rapid)
| National | |
| Overall | 2602 |
| Gender | 2107 |
| Age group | 439 |
| Gender/Age | 408 |
| Provincial | |
| Overall | 1095 |
| Gender | 866 |
| Age group | 166 |
| Gender/Age | 155 |
| Regional | |
| Overall | 470 |
| Gender | 408 |
| Age group | 100 |
| Gender/Age | 93 |
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 | 41 |
| Score | 20.5 |
| Percent | 50 |
| Aor | 1376.1 |
| Dp | 0 |
| Prat | 1376.1 |
Performance (History)
| Games | 165 |
| Score | 82.5 |
| Percent | 50 |
| Aor | 1297.6 |
| Dp | 0 |
| Prat | 1297.6 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Ncethelo, B (Bongolethu) | 3 | 0 | 3 | 2019 Elsies River Open (Open) | Western Cape Closed Championship 2023 (Blitz) | Details |
| Overall | 2 | Mente, L (Limi) | 2 | 0 | 2 | 2018 Western Province League (E) | Cape Town Chess Federation Club League 2025 (B) | Details |
| Overall | 3 | Waguta, B (Brooklyn) | 2 | 1 | 1 | 2019 Western Province Open (Open) | 2019 Elsies River Open (Open) | Details |
| Overall | 4 | Petersen, AR (Anito Roderick) | 2 | 1 | 1 | Hermanus Chess Club Open 2025 (Intermediate) | Cape Town Chess Federation Club League 2025 (B) | Details |
| Overall | 5 | Palmer, ZE (Zante) | 2 | 2 | 0 | Crossroads Open Chess Championship 2018 (C) | Western Cape Closed Championship 2023 (Blitz) | Details |
| Standard | 1 | Mente, L (Limi) | 2 | 0 | 2 | 2018 Western Province League (E) | Cape Town Chess Federation Club League 2025 (B) | Details |
| Standard | 2 | Adams, K (Keenan) | 2 | 2 | 0 | 2018 Cape of Good Hope Open Chess Championships (C) | Crossroads Open Chess Championship 2019 (C) | Details |
| Standard | 3 | Mcmanus, D (Dale) | 2 | 2 | 0 | 2022 Western Province Club League (D) | Cape Town Chess Federation Club League 2025 (B) | Details |
| Standard | 4 | Waguta, B (Brooklyn) | 2 | 1 | 1 | 2019 Western Province Open (Open) | 2019 Elsies River Open (Open) | Details |
| Standard | 5 | Osborne, R (Ryan Eugene) | 2 | 2 | 0 | 2019 Western Province League (E) | Cape Town Chess Federation Club League 2025 (D) | Details |
| Rapid | 1 | Lielieveld, F (Franco) | 2 | 1 | 1 | Cape Town Junior Chess League - Round 1 2023 (U20) | Cape Town Junior Chess League Finals 2023 (U20A) | Details |