PLAYER PAGE
Personal
Van Zyl, J (Johanna)
Chess SA id
2140146480FIDE id
?Date of birth
2014-07-03 (U12)Gender
FemaleRegion
Pixley-ka-Seme (NCP)Citizen
RSATitles
Chess SA registered
YesLast active game
2025-08-23Personal details last changed
2025-02-12Junior GPX Games
54Junior GPX Points
1234| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1273.9 | 1274.4 | 1200 | 1200 |
| Raw rating | 1273.9 | 1274.4 | 1200 | 1200 |
| Weighted rating | 1195.4 | 1193 | 1200 | 1200 |
| Weighted performance | 1260.5 | 1261.1 | 0 | 0 |
| Floor | 773.9 | 774.4 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 149.2 | 149.1 | 165.8 | 165.8 |
| Highest rating | 1273.92025-09-01 | 1274.42025-09-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1273.92025-09-01 | 1274.42025-09-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 1259.72018-10-01 | 1258.32018-10-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 1273.22025-09-01 | 1273.82025-09-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1273.9 | 1274.4 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1273.9 | 1274.4 | 1200 | 1200 |
| Raw rating | 1273.9 | 1274.4 | 1200 | 1200 |
| Weighted rating | 1195.4 | 1193 | 1200 | |
| Weighted performance | 1260.5 | 1261.1 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 773.9 | 774.4 | 700 | 700 |
| Max/Min rating change allowed | 149.2 | 149.1 | 165.8 | 165.8 |
| Games | 0 | 0 | 0 | 0 |
| Score | 0 | 0 | 0 | 0 |
| Expected score | 0 | 0 | 0 | 0 |
| Score-Expected | 0 | 0 | 0 | 0 |
| Temp raw +/- | 0 | 0 | 0 | 0 |
| Final raw +/- | 0 | 0 | 0 | 0 |
| New raw rating | 1273.9 | 1274.4 | 1200 | 1200 |
| New weighted rating | 1203.9 | 1201.8 | 1200 | 1200 |
| New weighted performance | 1260 | 1260.7 | 0 | 0 |
| Temp new rating | 1273.9 | 1274.4 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1273.9 | 1274.4 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 773.9 | 774.4 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 39 | 39 | 0 | 0 | |
| 58 | 58 | 0 | 0 | |
| 13 | 13 | 0 | 0 | |
| 4 | 4 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 114 | 114 | 0 | 0 |
| Games since | |||||||||||||||||
| Main97 | Standard97 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U12 | ||||||||||||||||
| Region | Pixley-ka-Seme (NCP) | ||||||||||||||||
| Province | Northern Cape (NC) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 3413 | 90 | 22 | ||||||||||||||
| Female | 734 | 22 | 8 | ||||||||||||||
| U12 | 529 | 15 | 8 | ||||||||||||||
| U12 Female | 156 | 4 | 2 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 3300 | 119 | 26 | ||||||||||||||
| Female | 715 | 27 | 9 | ||||||||||||||
| U12 | 497 | 18 | 8 | ||||||||||||||
| U12 Female | 147 | 5 | 2 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 Female | -1 | -1 | -1 | ||||||||||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 0 | 0 | 0 | 0 | 0 | 0 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 39 | 20.5 | 52.56 | 21.8 | 1264 | 1285.8 |
| Standard | 39 | 20.5 | 52.56 | 21.8 | 1264 | 1285.8 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 114 | 48 | 42.11 | -67.1 | 1229.9 | 1162.7 |
| Standard | 114 | 48 | 42.11 | -67.1 | 1229.9 | 1162.7 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1273.9 | 1274.4 | 1200 | 1200 |
| 2025-09-01 | 1273.9 | 1274.4 | 1200 | 1200 |
| 2025-08-01 | 1248.5 | 1244.5 | 1200 | 1200 |
| 2025-07-01 | 1247.6 | 1242.7 | 1200 | 1200 |
| 2025-06-01 | 1247.6 | 1242.7 | 1200 | 1200 |
| 2025-05-01 | 1259.7 | 1258.3 | 1200 | 1200 |
| 2025-04-01 | 1182 | 1181.5 | 1200 | 1200 |
| 2025-03-01 | 1175 | 1172.4 | 1200 | 1200 |
| 2025-02-01 | 1132 | 1131.3 | 1200 | 1200 |
| 2025-01-01 | 1131.9 | 1131.3 | 1200 | 1200 |
| 2024-12-01 | 1156.3 | 1151.7 | 1200 | 1200 |
| 2024-11-01 | 1156.3 | 1151.7 | 1200 | 1200 |
| 2024-10-01 | 1172.1 | 1172.5 | 1200 | 1200 |
| 2024-09-01 | 1172.1 | 1172.5 | 1200 | 1200 |
| 2024-08-01 | 1065.7 | 1054.4 | 1200 | 1200 |
| 2024-07-01 | 1101.7 | 1095.6 | 1200 | 1200 |
| 2024-06-01 | 1139.3 | 1142 | 1200 | 1200 |
| 2024-08-01 | 1166.9 | 1170 | 1200 | 1200 |
| 2024-04-01 | 1166.9 | 1170 | 1200 | 1200 |
| 2024-03-01 | 1166.9 | 1170 | 1200 | 1200 |
| 2024-02-01 | 1099.4 | 1083.2 | 1200 | 1200 |
| 2024-01-01 | 1099.4 | 1083.2 | 1200 | 1200 |
| 2023-12-01 | 1099.4 | 1083.2 | 1200 | 1200 |
| 2023-11-01 | 1099.4 | 1083.2 | 1200 | 1200 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Northern Cape Closed 202 (U12 Girls) | 2025-08-22 | 2025-08-23 | Standard | ZF Mgcawu (NZF) | 5 | 5 | 3 | Yes | Analysis |
| 2 | De Aar Primary School 2025 (U12) | 2025-08-16 | 2025-08-16 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 3 | Yes | Analysis |
| 3 | Hopetown Schools Open 2025 (U11) | 2025-08-01 | 2025-08-01 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 1.5 | Yes | Analysis |
| 4 | KCC School Holiday Tournament 2.0 2025 | 2025-07-02 | 2025-07-02 | Standard | Frances Baard (NCF) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2025 Hopetown Schools Chess Tournament (U11+U13) | 2025-05-17 | 2025-05-17 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 6 | 2025 Frances Baard Schools Open IV (U9+U11) | 2025-04-17 | 2025-04-17 | Standard | Frances Baard (NCF) | 5 | 5 | 4 | Yes | Analysis |
| 7 | Karpov Chess Club Open 2025 | 2025-03-15 | 2025-03-15 | Standard | Frances Baard (NCF) | 5 | 5 | 2 | Yes | Analysis |
| 8 | 2025 HSDA School Chess Tournament (U9+U11) | 2025-02-08 | 2025-02-08 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 3 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Northern Cape Closed 202 (U12 Girls) | 2025-08-22 | 2025-08-23 | Standard | ZF Mgcawu (NZF) | 5 | 5 | 3 | Yes | Analysis |
| 2 | De Aar Primary School 2025 (U12) | 2025-08-16 | 2025-08-16 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 3 | Yes | Analysis |
| 3 | Hopetown Schools Open 2025 (U11) | 2025-08-01 | 2025-08-01 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 1.5 | Yes | Analysis |
| 4 | KCC School Holiday Tournament 2.0 2025 | 2025-07-02 | 2025-07-02 | Standard | Frances Baard (NCF) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2025 Hopetown Schools Chess Tournament (U11+U13) | 2025-05-17 | 2025-05-17 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 6 | 2025 Frances Baard Schools Open IV (U9+U11) | 2025-04-17 | 2025-04-17 | Standard | Frances Baard (NCF) | 5 | 5 | 4 | Yes | Analysis |
| 7 | Karpov Chess Club Open 2025 | 2025-03-15 | 2025-03-15 | Standard | Frances Baard (NCF) | 5 | 5 | 2 | Yes | Analysis |
| 8 | 2025 HSDA School Chess Tournament (U9+U11) | 2025-02-08 | 2025-02-08 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 3 | Yes | Analysis |
| 9 | Mzansi Interprovincial Youth Chess Championships 2024 (U12 Girls Championship) | 2024-12-16 | 2024-12-19 | Standard | Capricorn (LCP) | 7 | 6 | 1 | Yes | Analysis |
| 10 | 2024 Kimberley Chess Club Christmas Open (Bishops) | 2024-12-07 | 2024-12-07 | Standard | Frances Baard (NCF) | 5 | 4 | 2 | Yes | Analysis |
| 11 | 2024 Hopetown Schools Chess Tournament (U9+U11) | 2024-10-12 | 2024-10-12 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 12 | Hopetown Schools Chess Tournament 2024 (U11) | 2024-08-17 | 2024-08-17 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 0.5 | Yes | Analysis |
| 13 | 2024 NC Closed Chess Championships (U12 Girls) | 2024-08-23 | 2024-08-25 | Standard | Frances Baard (NCF) | 5 | 5 | 4 | Yes | Analysis |
| 14 | 2024 Pixley Ka Seme Chess Schools Open 2 (U11) | 2024-08-03 | 2024-08-03 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 3 | Yes | Analysis |
| 15 | 2024 HSDA Open 3 (U11) | 2024-07-27 | 2024-07-27 | Standard | Pixley-ka-Seme (NCP) | 5 | 5 | 2 | Yes | Analysis |
| 16 | 2024 Frances Baard Grand Prix 2.0 (B) | 2024-07-06 | 2024-07-06 | Standard | Frances Baard (NCF) | 5 | 4 | 0 | Yes | Analysis |
| 17 | Frances Baard Grand Prix 1.0 2024 (U12) | 2024-06-29 | 2024-06-29 | Standard | Frances Baard (NCF) | 5 | 5 | 1 | Yes | Analysis |
| 18 | Spartan Bishops Chess Championships 2024 (Big Pawns) | 2024-05-04 | 2024-05-05 | Standard | Bojanala Platina (NBR) | 5 | 5 | 1 | Yes | Analysis |
| 19 | Hopetown Open Chess Tournament 2024 (U12) | 2024-02-10 | 2024-02-10 | Standard | Frances Baard (NCF) | 5 | 5 | 3 | Yes | Analysis |
| 20 | 2024 Frances Baard Schools Open (U11) | 2024-02-03 | 2024-02-03 | Standard | Frances Baard (NCF) | 5 | 5 | 3 | Yes | Analysis |
| 21 | 2023 Northern Cape Closed Chess Championships (U10 Girls) | 2023-08-25 | 2023-08-27 | Standard | Frances Baard (NCF) | 4 | 4 | 2 | Yes | Analysis |
| 22 | Inter Regional Chess Championship 2023 (U10) | 2023-05-19 | 2023-05-20 | Standard | Mangaung (FMB) | 5 | 4 | 0 | Yes | Analysis |
| 23 | Hopetown Schools Chess Open Tournament 2023 (U11) | 2023-02-25 | 2023-02-25 | Standard | John Taolo Gaetswewe (NCJ) | 5 | 5 | 2 | Yes | Analysis |
| 24 | Pixley Chess Trials 2022 (U10) | 2022-09-03 | 2022-09-03 | Standard | Pixley-ka-Seme (NCP) | 5 | 4 | 1 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Frances Baard Schools Open IV | Tournament2025 Frances Baard Schools Open IV | ||||||
| date2025-04-17 | rnd2 | typeStandard | result1 | date2025-04-17 | rnd5 | typeStandard | result1 | ||
| OpponentAbrahams, A (Alexis) | OpponentManaka, R (Remoratile) | ||||||||
| 2 | 4 | Tournament2024 Pixley Ka Seme Chess Schools Open 2 | Tournament2024 Pixley Ka Seme Chess Schools Open 2 | ||||||
| date2024-08-03 | rnd1 | typeStandard | result1 | date2024-08-03 | rnd4 | typeStandard | result1 | ||
| OpponentViljoen, J (Joshua) | OpponentNiesing, N (Naomi) | ||||||||
| 3 | 3 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-22 | rnd2 | typeStandard | result1 | date2025-08-23 | rnd4 | typeStandard | result1 | ||
| OpponentNieuwoudt, W (Wilmie) | OpponentNiesing, N (Naomi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Frances Baard Schools Open IV | Tournament2025 Frances Baard Schools Open IV | ||||||
| date2025-04-17 | rnd2 | typeStandard | result1 | date2025-04-17 | rnd5 | typeStandard | result1 | ||
| OpponentAbrahams, A (Alexis) | OpponentManaka, R (Remoratile) | ||||||||
| 2 | 4 | Tournament2024 Pixley Ka Seme Chess Schools Open 2 | Tournament2024 Pixley Ka Seme Chess Schools Open 2 | ||||||
| date2024-08-03 | rnd1 | typeStandard | result1 | date2024-08-03 | rnd4 | typeStandard | result1 | ||
| OpponentViljoen, J (Joshua) | OpponentNiesing, N (Naomi) | ||||||||
| 3 | 3 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-22 | rnd2 | typeStandard | result1 | date2025-08-23 | rnd4 | typeStandard | result1 | ||
| OpponentNieuwoudt, W (Wilmie) | OpponentNiesing, N (Naomi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Frances Baard Schools Open IV | Tournament2025 Frances Baard Schools Open IV | ||||||
| date2025-04-17 | rnd2 | typeStandard | result1 | date2025-04-17 | rnd5 | typeStandard | result1 | ||
| OpponentAbrahams, A (Alexis) | OpponentManaka, R (Remoratile) | ||||||||
| 2 | 3 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-22 | rnd2 | typeStandard | result1 | date2025-08-23 | rnd4 | typeStandard | result1 | ||
| OpponentNieuwoudt, W (Wilmie) | OpponentNiesing, N (Naomi) | ||||||||
| 3 | 3 | Tournament2024 NC Closed Chess Championships | Tournament2024 NC Closed Chess Championships | ||||||
| date2024-08-24 | rnd3 | typeStandard | result1 | date2024-08-25 | rnd5 | typeStandard | result1 | ||
| OpponentViviers, M (Mariané) | OpponentMatthys, E (Eliana) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Frances Baard Schools Open IV | Tournament2025 Frances Baard Schools Open IV | ||||||
| date2025-04-17 | rnd2 | typeStandard | result1 | date2025-04-17 | rnd5 | typeStandard | result1 | ||
| OpponentAbrahams, A (Alexis) | OpponentManaka, R (Remoratile) | ||||||||
| 2 | 3 | TournamentNorthern Cape Closed 202 | TournamentNorthern Cape Closed 202 | ||||||
| date2025-08-22 | rnd2 | typeStandard | result1 | date2025-08-23 | rnd4 | typeStandard | result1 | ||
| OpponentNieuwoudt, W (Wilmie) | OpponentNiesing, N (Naomi) | ||||||||
| 3 | 3 | Tournament2024 NC Closed Chess Championships | Tournament2024 NC Closed Chess Championships | ||||||
| date2024-08-24 | rnd3 | typeStandard | result1 | date2024-08-25 | rnd5 | typeStandard | result1 | ||
| OpponentViviers, M (Mariané) | OpponentMatthys, E (Eliana) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
Top 10 opponents most often played
| # | Opponent | Main | Standard | Rapid | Blitz | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | ||
| Aor | Prat | Aor | Prat | Aor | Prat | Aor | Prat | ||||||
| 1 | Van Zyl ,F (Frederick) | 10 | 1 | -340 | 10 | 1 | -340 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1192.4 | 852.4 | 1191.8 | 852.4 | 0 | 0 | 0 | 0 | ||||||
| 2 | Niesing ,N (Naomi) | 10 | 6 | 85 | 10 | 6 | 85 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1166.6 | 1251.6 | 1160.3 | 1251.6 | 0 | 0 | 0 | 0 | ||||||
| 3 | Finck ,LS (Lynden Shikamaru) | 4 | 1 | -212.5 | 4 | 1 | -212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1277.2 | 1064.7 | 1277.9 | 1064.7 | 0 | 0 | 0 | 0 | ||||||
| 4 | Heyns ,R (Rashnique) | 4 | 2.5 | 106.2 | 4 | 2.5 | 106.2 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1230.4 | 1336.7 | 1231.2 | 1336.7 | 0 | 0 | 0 | 0 | ||||||
| 5 | Vermeulen ,JB (Johannes Bernardus) | 4 | 1 | -212.5 | 4 | 1 | -212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1231.6 | 1019.1 | 1230.2 | 1019.1 | 0 | 0 | 0 | 0 | ||||||
| 6 | De Noon ,SJ (Stian Johanco) | 3 | 0.5 | -283.3 | 3 | 0.5 | -283.3 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1271.8 | 988.5 | 1265.7 | 988.5 | 0 | 0 | 0 | 0 | ||||||
| 7 | Viljoen ,J (Joshua) | 3 | 1 | -141.7 | 3 | 1 | -141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1296.6 | 1155 | 1297.4 | 1155 | 0 | 0 | 0 | 0 | ||||||
| 8 | De Kock ,M (Micah) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1250.4 | 825.4 | 1245.6 | 825.4 | 0 | 0 | 0 | 0 | ||||||
| 9 | Mokoena ,N (Naledientle) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1099.8 | 674.8 | 1084.4 | 674.8 | 0 | 0 | 0 | 0 | ||||||
| 10 | Kanjee ,V (Viyaash) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1438.5 | 1013.5 | 1443.4 | 1013.5 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|