PLAYER PAGE
Zachariah Human
1120153447Tshwane (GTP)Personal
Main rating
| Rating | 1357.7 |
| K-factor | 32 |
| Floor | 917.7 |
| Highest | 1469.4 (2026-01-01) |
| Min/Max +/- allowed | 113 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1289.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1357.7 |
| K-factor | 32 |
| Floor | 917.7 |
| Highest | 1469.4 (2026-01-01) |
| Min/Max +/- allowed | 113 |
Standard rating
| Rating | 1357.4 |
| K-factor | 32 |
| Floor | 929.2 |
| Highest | 1463.5 (2026-01-01) |
| Min/Max +/- allowed | 113.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1289.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1357.4 |
| K-factor | 32 |
| Floor | 929.2 |
| Highest | 1463.5 (2026-01-01) |
| Min/Max +/- allowed | 113.9 |
Rapid rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
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 | 2026 Lubowski Open Chess Tournament (D2) | Standard | 2026-03-21 | 2026-03-22 | Tshwane (GTP) | 5 | 1353.9 | 5 | 3.5 | 1405.1 | 10.5 | Details |
| 2 | 2026 Silver Lakes Open Chess Tournament (C) | Standard | 2026-03-07 | 2026-03-07 | Tshwane (GTP) | 5 | 1353.9 | 5 | 2 | 1304.3 | -6.7 | Details |
| 3 | 2026 Tshwane Chess Registration Tournament (C1) | Standard | 2026-01-31 | 2026-01-31 | Tshwane (GTP) | 5 | 1453.4 | 4 | 0 | 942.3 | -39.8 | Details |
| 4 | Gauteng Inter-Region at Emerald Resort 2025 (U14 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1411.7 | 5 | 4 | 1567.5 | 18 | Details |
| 5 | D4 Development Cup 2025 (U13) | Standard | 2025-10-17 | 2025-10-17 | Tshwane (GTP) | 5 | 1355.3 | 5 | 4 | 1531 | 16.6 | Details |
| 6 | 2025 Gauteng Schools Provincial Individual Chess Championship (U13 Boys) | Standard | 2025-09-27 | 2025-09-27 | Tshwane (GTP) | 5 | 1324.2 | 5 | 3 | 1509.1 | 17.3 | Details |
| 7 | 2025 Etienne Lewis Closed Chess Tournament (U14) | Standard | 2025-08-08 | 2025-08-10 | Tshwane (GTP) | 7 | 1308.1 | 7 | 3 | 1362.1 | 9 | Details |
| 8 | 2025 Menlo Open (U14) | Standard | 2025-07-26 | 2025-07-26 | Tshwane (GTP) | 5 | 1283.9 | 5 | 3 | 1415 | 13.4 | Details |
| 9 | 2025 Elise Steenkamp Open Chess Tournament (Rook) | Standard | 2025-06-14 | 2025-06-16 | Tshwane (GTP) | 7 | 1336.8 | 7 | 3 | 1169.8 | -26.5 | Details |
| 10 | 2025 JMCA Open Chess Tournament (C) | Standard | 2025-06-07 | 2025-06-07 | Tshwane (GTP) | 5 | 1336.8 | 5 | 1 | 1076.8 | -26.1 | Details |
| 11 | 2025 Gauteng North School Individual Championships D1 (U13 Open) | Standard | 2025-05-17 | 2025-05-17 | Tshwane (GTP) | 5 | 1286 | 5 | 4.5 | 1581.8 | 28.2 | Details |
| 12 | 2025 Blou Bul Open Chess Tournament (D1) | Standard | 2025-02-08 | 2025-02-08 | Tshwane (GTP) | 5 | 1313.3 | 5 | 2 | 1150.2 | -15.1 | Details |
| 13 | Gauteng Inter-Region at UJ 2024 (U14 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1351.9 | 5 | 1.5 | 1151.2 | -21.4 | Details |
| 14 | Lardies Ope 2024 (B) | Standard | 2024-10-26 | 2024-10-26 | Tshwane (GTP) | 5 | 1330.4 | 5 | 3 | 1445.7 | 12 | Details |
| 15 | D1 Gauteng North District School Closed 2024 (U13) | Standard | 2024-08-03 | 2024-08-03 | Tshwane (GTP) | 5 | 1314 | 5 | 3 | 1414 | 9.1 | Details |
| 16 | 2024 Elise Steenkamp Open Chess Tournament (Queens) | Standard | 2024-06-15 | 2024-06-17 | Tshwane (GTP) | 7 | 1331.1 | 7 | 4 | 1260.7 | -9.6 | Details |
| 17 | 2024 Gauteng North School District Individual Championships - D1 (U13 Boys) | Standard | 2024-05-11 | 2024-05-11 | Tshwane (GTP) | 5 | 1263 | 5 | 4 | 1487 | 22.6 | Details |
| 18 | 2024 Milos Ristic Open Chess Tournament (U14) | Standard | 2024-04-27 | 2024-04-27 | Tshwane (GTP) | 5 | 1220.2 | 5 | 3 | 1377.7 | 14.8 | Details |
| 19 | 2024 Lubowski Open Chess Tournament (D2) | Standard | 2024-03-23 | 2024-03-24 | Tshwane (GTP) | 5 | 1174.1 | 5 | 2 | 1141.5 | -4.5 | Details |
| 20 | 2024 Chris Greyling Open Chess Tournament (D1) | Standard | 2024-03-16 | 2024-03-16 | Tshwane (GTP) | 5 | 1174.1 | 5 | 4 | 1397.6 | 21.2 | Details |
| 21 | 2024 Tshwane Chess AHS Open Chess Tournament (D2) | Standard | 2024-02-24 | 2024-02-24 | Tshwane (GTP) | 5 | 1179.4 | 5 | 2 | 1112.5 | -7.3 | Details |
| 22 | 2024 Tshwane Chess OPEN Registration Tournament (D1) | Standard | 2024-01-27 | 2024-01-27 | Tshwane (GTP) | 5 | 1112.2 | 5 | 3 | 1302 | 17.9 | Details |
| 23 | 2024 Gauteng Inter-Region Chess Championship (U12C) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1112.2 | 5 | 3 | 1244 | 15.4 | Details |
| 24 | 2023 Gauteng Noord (D) | Standard | 2023-10-14 | 2023-10-15 | Tshwane (GTP) | 5 | 1106.3 | 5 | 2 | 1125.2 | 1.1 | Details |
| 25 | 2023 Tuks Open Chess Tournament (D) | Standard | 2023-10-07 | 2023-10-07 | Tshwane (GTP) | 5 | 1106.3 | 4 | 1 | 1155.1 | 2.2 | Details |
| 26 | 2023 Alekhine Open Tournament (D) | Standard | 2023-09-09 | 2023-09-09 | Tshwane (GTP) | 5 | 1166.9 | 5 | 1 | 821 | -33.8 | Details |
| 27 | 2023 Etienne Lewis Closed Tournament (U12) | Standard | 2023-08-25 | 2023-08-27 | Tshwane (GTP) | 7 | 1173.7 | 7 | 3 | 1143.8 | -3.9 | Details |
| 28 | 2023 Mid Gauteng Open Tournament (D) | Standard | 2023-05-06 | 2023-05-06 | Tshwane (GTP) | 5 | 1190.1 | 5 | 2 | 1104.3 | -9.1 | Details |
| 29 | Silver Lakes Open Chess Tournament (D) | Standard | 2023-04-15 | 2023-04-15 | Tshwane (GTP) | 5 | 1200 | 5 | 1.5 | 944.7 | -25.6 | Details |
| 30 | 2023 Milos Ristic Open Tournament (D2) | Standard | 2023-04-27 | 2023-04-27 | Tshwane (GTP) | 5 | 1200 | 5 | 4 | 1411.8 | 20.1 | 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 | 14 |
| Wins | 5 |
| Draws | 1 |
| Losses | 8 |
| White | 6 |
| Black | 8 |
| White wins | 2 |
| Black wins | 3 |
| Score | 5.5 |
| Percent | 39.3 |
| Dp | -91.1 |
| AOR | 1327.9 |
| Performance | 1236.9 |
Game statistics (History)
| Games | 156 |
| Wins | 78 |
| Draws | 4 |
| Losses | 74 |
| White | 79 |
| Black | 77 |
| White wins | 41 |
| Black wins | 37 |
| Score | 80 |
| Percent | 51.3 |
| Dp | 10.9 |
| AOR | 1258.6 |
| Performance | 1269.5 |
Rankings (Main)
| National | |
| Overall | 4387 |
| Gender | 3661 |
| Age group | 672 |
| Gender/Age | 520 |
| Provincial | |
| Overall | 1463 |
| Gender | 1228 |
| Age group | 226 |
| Gender/Age | 174 |
| Regional | |
| Overall | 515 |
| Gender | 418 |
| Age group | 80 |
| Gender/Age | 61 |
Rankings (Standard)
| National | |
| Overall | 3971 |
| Gender | 3302 |
| Age group | 613 |
| Gender/Age | 480 |
| Provincial | |
| Overall | 1395 |
| Gender | 1167 |
| Age group | 226 |
| Gender/Age | 175 |
| Regional | |
| Overall | 519 |
| Gender | 424 |
| Age group | 86 |
| Gender/Age | 66 |
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 | 14 |
| Score | 5.5 |
| Percent | 39.3 |
| Aor | 1327.9 |
| Dp | -91.1 |
| Prat | 1236.9 |
Performance (12 months)
| Games | 58 |
| Score | 31 |
| Percent | 53.4 |
| Aor | 1323.2 |
| Dp | 29.3 |
| Prat | 1352.5 |
Performance (History)
| Games | 156 |
| Score | 80 |
| Percent | 51.3 |
| Aor | 1258.6 |
| Dp | 10.9 |
| Prat | 1269.5 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Labuscagne, W (Waldo) | 3 | 2 | 1 | 2024 Lubowski Open Chess Tournament (D2) | 2025 Elise Steenkamp Open Chess Tournament (Rook) | Details |
| Overall | 2 | Boshoff, M (Milah) | 2 | 1 | 1 | 2023 Gauteng Noord (D) | 2026 Silver Lakes Open Chess Tournament (C) | Details |
| Overall | 3 | Ribbens, R (Reuben) | 2 | 0 | 2 | 2025 Menlo Open (U14) | 2025 Gauteng Schools Provincial Individual Chess Championship (U13 Boys) | Details |
| Overall | 4 | Human, S (Samuel) | 2 | 0 | 2 | 2024 Lubowski Open Chess Tournament (D2) | 2025 Gauteng North School Individual Championships D1 (U13 Open) | Details |
| Overall | 5 | Theron, C (Carla) | 2 | 1 | 1 | Lardies Ope 2024 (B) | 2025 Etienne Lewis Closed Chess Tournament (U14) | Details |
| Standard | 1 | Labuscagne, W (Waldo) | 3 | 2 | 1 | 2024 Lubowski Open Chess Tournament (D2) | 2025 Elise Steenkamp Open Chess Tournament (Rook) | Details |
| Standard | 2 | Boshoff, M (Milah) | 2 | 1 | 1 | 2023 Gauteng Noord (D) | 2026 Silver Lakes Open Chess Tournament (C) | Details |
| Standard | 3 | Boshoff, R (Reinhardt) | 2 | 0 | 2 | 2023 Gauteng Noord (D) | 2025 Etienne Lewis Closed Chess Tournament (U14) | Details |
| Standard | 4 | Le Roux, E (Etienne) | 2 | 2 | 0 | 2023 Etienne Lewis Closed Tournament (U12) | 2025 Etienne Lewis Closed Chess Tournament (U14) | Details |
| Standard | 5 | Haupt, A (Abigail) | 2 | 2 | 0 | 2023 Milos Ristic Open Tournament (D2) | 2023 Alekhine Open Tournament (D) | Details |