PLAYER PAGE
Personal
Human, Z (Zachariah)
Chess SA id
1120153447FIDE id
?Date of birth
2012-02-19 (U14)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
YesLast active game
2025-09-27Personal details last changed
1900-01-01Junior GPX Games
49Junior GPX Points
1293.5| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1355.3 | 1361.9 | 1200 | 1200 |
| Raw rating | 1355.3 | 1361.9 | 1200 | 1200 |
| Weighted rating | 1309.1 | 1309.7 | 1200 | 1200 |
| Weighted performance | 1340.2 | 1336.1 | 0 | 0 |
| Floor | 855.3 | 861.9 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 132.9 | 131.7 | 165.8 | 165.8 |
| Highest rating | 1359.12024-11-01 | 1361.92025-11-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1355.32025-11-01 | 1361.92025-11-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 1351.92025-06-01 | 1357.52025-06-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 1359.12024-11-01 | 1359.22024-11-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1355.3 | 1361.9 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1355.3 | 1361.9 | 1200 | 1200 |
| Raw rating | 1355.3 | 1361.9 | 1200 | 1200 |
| Weighted rating | 1309.1 | 1309.7 | 1200 | |
| Weighted performance | 1340.2 | 1336.1 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 855.3 | 861.9 | 700 | 700 |
| Max/Min rating change allowed | 132.9 | 131.7 | 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 | 1355.3 | 1361.9 | 1200 | 1200 |
| New weighted rating | 1314.9 | 1316.2 | 1200 | 1200 |
| New weighted performance | 1332.2 | 1328.1 | 0 | 0 |
| Temp new rating | 1355.3 | 1361.9 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1355.3 | 1361.9 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 855.3 | 861.9 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 39 | 39 | 0 | 0 | |
| 57 | 57 | 0 | 0 | |
| 36 | 36 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 132 | 132 | 0 | 0 |
| Games since | |||||||||||||||||
| Main96 | Standard96 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U14 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 2656 | 919 | 334 | ||||||||||||||
| Male | 2135 | 733 | 263 | ||||||||||||||
| U14 | 457 | 151 | 53 | ||||||||||||||
| U14 Male | 337 | 108 | 37 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 2518 | 930 | 359 | ||||||||||||||
| Male | 2023 | 748 | 284 | ||||||||||||||
| U14 | 438 | 156 | 57 | ||||||||||||||
| U14 Male | 319 | 110 | 37 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Male | -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 | 19.5 | 50 | 0 | 1317.6 | 1317.6 |
| Standard | 39 | 19.5 | 50 | 0 | 1317.6 | 1317.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 132 | 66.5 | 50.38 | 3.2 | 1248.6 | 1251.8 |
| Standard | 132 | 66.5 | 50.38 | 3.2 | 1248.6 | 1251.8 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1355.3 | 1361.9 | 1200 | 1200 |
| 2025-09-30 | 1324.2 | 1325.5 | 1200 | 1200 |
| 2025-09-01 | 1324.2 | 1325.5 | 1200 | 1200 |
| 2025-08-01 | 1308.1 | 1309.3 | 1200 | 1200 |
| 2025-07-01 | 1283.9 | 1282.3 | 1200 | 1200 |
| 2025-06-01 | 1336.8 | 1343.8 | 1200 | 1200 |
| 2025-05-01 | 1286 | 1282.9 | 1200 | 1200 |
| 2025-04-01 | 1286 | 1282.9 | 1200 | 1200 |
| 2025-03-01 | 1286 | 1282.9 | 1200 | 1200 |
| 2025-02-01 | 1313.3 | 1316.5 | 1200 | 1200 |
| 2025-01-01 | 1313.3 | 1316.5 | 1200 | 1200 |
| 2024-12-01 | 1351.9 | 1357.5 | 1200 | 1200 |
| 2024-11-01 | 1330.4 | 1332.7 | 1200 | 1200 |
| 2024-10-01 | 1330.4 | 1332.7 | 1200 | 1200 |
| 2024-09-01 | 1330.4 | 1332.7 | 1200 | 1200 |
| 2024-08-01 | 1314 | 1311.5 | 1200 | 1200 |
| 2024-07-01 | 1314 | 1311.5 | 1200 | 1200 |
| 2024-09-01 | 1331.1 | 1326.6 | 1200 | 1200 |
| 2024-05-01 | 1263 | 1256 | 1200 | 1200 |
| 2024-04-01 | 1220.2 | 1212.5 | 1200 | 1200 |
| 2024-03-01 | 1174.1 | 1168.7 | 1200 | 1200 |
| 2024-02-01 | 1179.4 | 1175.3 | 1200 | 1200 |
| 2024-01-01 | 1112.2 | 1102.1 | 1200 | 1200 |
| 2023-12-01 | 1112.2 | 1102.1 | 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 | 2025 Gauteng Schools Provincial Individual Chess Championship (U13 Boys) | 2025-09-27 | 2025-09-27 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U14) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 3 | 2025 Menlo Open (U14) | 2025-07-26 | 2025-07-26 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 4 | 2025 Elise Steenkamp Open Chess Tournament (Rook) | 2025-06-14 | 2025-06-16 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 5 | 2025 JMCA Open Chess Tournament (C) | 2025-06-07 | 2025-06-07 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 6 | 2025 Gauteng North School Individual Championships D1 (U13 Open) | 2025-05-17 | 2025-05-17 | Standard | Tshwane (GTP) | 5 | 5 | 4.5 | Yes | Analysis |
| 7 | 2025 Blou Bul Open Chess Tournament (D1) | 2025-02-08 | 2025-02-08 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Gauteng Schools Provincial Individual Chess Championship (U13 Boys) | 2025-09-27 | 2025-09-27 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U14) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 3 | 2025 Menlo Open (U14) | 2025-07-26 | 2025-07-26 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 4 | 2025 Elise Steenkamp Open Chess Tournament (Rook) | 2025-06-14 | 2025-06-16 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 5 | 2025 JMCA Open Chess Tournament (C) | 2025-06-07 | 2025-06-07 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 6 | 2025 Gauteng North School Individual Championships D1 (U13 Open) | 2025-05-17 | 2025-05-17 | Standard | Tshwane (GTP) | 5 | 5 | 4.5 | Yes | Analysis |
| 7 | 2025 Blou Bul Open Chess Tournament (D1) | 2025-02-08 | 2025-02-08 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 8 | Gauteng Inter-Region at UJ 2024 (U14 Candidates) | 2024-12-07 | 2024-12-08 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 1.5 | Yes | Analysis |
| 9 | Lardies Ope 2024 (B) | 2024-10-26 | 2024-10-26 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 10 | D1 Gauteng North District School Closed 2024 (U13) | 2024-08-03 | 2024-08-03 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 11 | 2024 Elise Steenkamp Open Chess Tournament (Queens) | 2024-06-15 | 2024-06-17 | Standard | Tshwane (GTP) | 7 | 7 | 4 | Yes | Analysis |
| 12 | 2024 Gauteng North School District Individual Championships - D1 (U13 Boys) | 2024-05-11 | 2024-05-11 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 13 | 2024 Milos Ristic Open Chess Tournament (U14) | 2024-04-27 | 2024-04-27 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 14 | 2024 Lubowski Open Chess Tournament (D2) | 2024-03-23 | 2024-03-24 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 15 | 2024 Chris Greyling Open Chess Tournament (D1) | 2024-03-16 | 2024-03-16 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 16 | 2024 Tshwane Chess AHS Open Chess Tournament (D2) | 2024-02-24 | 2024-02-24 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 17 | 2024 Tshwane Chess OPEN Registration Tournament (D1) | 2024-01-27 | 2024-01-27 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 18 | 2024 Gauteng Inter-Region Chess Championship (U12C) | 2024-01-13 | 2024-01-14 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 19 | 2023 Gauteng Noord (D) | 2023-10-14 | 2023-10-15 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 20 | 2023 Tuks Open Chess Tournament (D) | 2023-10-07 | 2023-10-07 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 21 | 2023 Alekhine Open Tournament (D) | 2023-09-09 | 2023-09-09 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 22 | 2023 Etienne Lewis Closed Tournament (U12) | 2023-08-25 | 2023-08-27 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 23 | 2023 Mid Gauteng Open Tournament (D) | 2023-05-06 | 2023-05-06 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 24 | Silver Lakes Open Chess Tournament (D) | 2023-04-15 | 2023-04-15 | Standard | Tshwane (GTP) | 5 | 5 | 1.5 | Yes | Analysis |
| 25 | 2023 Milos Ristic Open Tournament (D2) | 2023-04-27 | 2023-04-27 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | Tournament2025 Gauteng North School Individual Championships D1 | Tournament2025 Gauteng North School Individual Championships D1 | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd5 | typeStandard | result0.5 | ||
| OpponentLourens, J (Jonathan) | OpponentSteyn, H (Henco) | ||||||||
| 2 | 5 | Tournament2024 Milos Ristic Open Chess Tournament | Tournament2024 Gauteng North School District Individual Championships - D1 | ||||||
| date2024-04-27 | rnd4 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentCooke, W (William) | OpponentMogale, K (Khanya) | ||||||||
| 3 | 4 | Tournament2023 Milos Ristic Open Tournament | Tournament2023 Mid Gauteng Open Tournament | ||||||
| date2023-04-27 | rnd3 | typeStandard | result1 | date2023-05-06 | rnd1 | typeStandard | result1 | ||
| OpponentGruenenfelder, E (Ellie) | OpponentJacobs, E (Elai) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | Tournament2025 Gauteng North School Individual Championships D1 | Tournament2025 Gauteng North School Individual Championships D1 | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd5 | typeStandard | result0.5 | ||
| OpponentLourens, J (Jonathan) | OpponentSteyn, H (Henco) | ||||||||
| 2 | 5 | Tournament2024 Milos Ristic Open Chess Tournament | Tournament2024 Gauteng North School District Individual Championships - D1 | ||||||
| date2024-04-27 | rnd4 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentCooke, W (William) | OpponentMogale, K (Khanya) | ||||||||
| 3 | 4 | Tournament2023 Milos Ristic Open Tournament | Tournament2023 Mid Gauteng Open Tournament | ||||||
| date2023-04-27 | rnd3 | typeStandard | result1 | date2023-05-06 | rnd1 | typeStandard | result1 | ||
| OpponentGruenenfelder, E (Ellie) | OpponentJacobs, E (Elai) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | Tournament2024 Milos Ristic Open Chess Tournament | Tournament2024 Gauteng North School District Individual Championships - D1 | ||||||
| date2024-04-27 | rnd4 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentCooke, W (William) | OpponentMogale, K (Khanya) | ||||||||
| 2 | 4 | Tournament2025 Gauteng North School Individual Championships D1 | Tournament2025 Gauteng North School Individual Championships D1 | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd4 | typeStandard | result1 | ||
| OpponentLourens, J (Jonathan) | OpponentHuman, S (Samuel) | ||||||||
| 3 | 4 | Tournament2023 Milos Ristic Open Tournament | Tournament2023 Mid Gauteng Open Tournament | ||||||
| date2023-04-27 | rnd3 | typeStandard | result1 | date2023-05-06 | rnd1 | typeStandard | result1 | ||
| OpponentGruenenfelder, E (Ellie) | OpponentJacobs, E (Elai) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | Tournament2024 Milos Ristic Open Chess Tournament | Tournament2024 Gauteng North School District Individual Championships - D1 | ||||||
| date2024-04-27 | rnd4 | typeStandard | result1 | date2024-05-11 | rnd3 | typeStandard | result1 | ||
| OpponentCooke, W (William) | OpponentMogale, K (Khanya) | ||||||||
| 2 | 4 | Tournament2025 Gauteng North School Individual Championships D1 | Tournament2025 Gauteng North School Individual Championships D1 | ||||||
| date2025-05-17 | rnd1 | typeStandard | result1 | date2025-05-17 | rnd4 | typeStandard | result1 | ||
| OpponentLourens, J (Jonathan) | OpponentHuman, S (Samuel) | ||||||||
| 3 | 4 | Tournament2023 Milos Ristic Open Tournament | Tournament2023 Mid Gauteng Open Tournament | ||||||
| date2023-04-27 | rnd3 | typeStandard | result1 | date2023-05-06 | rnd1 | typeStandard | result1 | ||
| OpponentGruenenfelder, E (Ellie) | OpponentJacobs, E (Elai) | ||||||||
| # | 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 | Labuscagne ,W (Waldo) | 3 | 2 | 141.7 | 3 | 2 | 141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1093.5 | 1235.2 | 1079.4 | 1235.2 | 0 | 0 | 0 | 0 | ||||||
| 2 | Visser ,A (Aaron) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1212.5 | 787.5 | 1202.6 | 787.5 | 0 | 0 | 0 | 0 | ||||||
| 3 | Haupt ,A (Abigail) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1373 | 1373 | 1371.7 | 1373 | 0 | 0 | 0 | 0 | ||||||
| 4 | Ribbens ,R (Reuben) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1609.3 | 1184.3 | 1603.7 | 1184.3 | 0 | 0 | 0 | 0 | ||||||
| 5 | Boshoff ,R (Reinhardt) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1462.8 | 1037.8 | 1457.8 | 1037.8 | 0 | 0 | 0 | 0 | ||||||
| 6 | Human ,S (Samuel) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1161.6 | 1161.6 | 1145.6 | 1161.6 | 0 | 0 | 0 | 0 | ||||||
| 7 | Van Rooyen ,D (Dandre) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1360.4 | 1360.4 | 1358.6 | 1360.4 | 0 | 0 | 0 | 0 | ||||||
| 8 | Le Roux ,E (Etienne) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1139.4 | 1564.4 | 1133.1 | 1564.4 | 0 | 0 | 0 | 0 | ||||||
| 9 | Segalo ,O (Ogone) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1158.8 | 1158.8 | 1152.9 | 1158.8 | 0 | 0 | 0 | 0 | ||||||
| 10 | Theron ,C (Carla) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1513.3 | 1088.3 | 1506.8 | 1088.3 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|