PLAYER PAGE
Zachary Arthur
1140156646Chess South Africa (CSA)Personal
Main rating
| Rating | 1311.7 |
| K-factor | 36 |
| Floor | 811.7 |
| Highest | 1311.7 (2025-08-01) |
| Min/Max +/- allowed | 141 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1237.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1311.7 |
| K-factor | 36 |
| Floor | 811.7 |
| Highest | 1311.7 (2025-08-01) |
| Min/Max +/- allowed | 141.4 |
Standard rating
| Rating | 1290.2 |
| K-factor | 36 |
| Floor | 790.2 |
| Highest | 1290.2 (2025-08-01) |
| Min/Max +/- allowed | 145.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1232.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1290.2 |
| K-factor | 36 |
| Floor | 790.2 |
| Highest | 1290.2 (2025-08-01) |
| Min/Max +/- allowed | 145.8 |
Rapid rating
| Rating | 1271.3 |
| K-factor | 36 |
| Floor | 776.8 |
| Highest | 1289.6 (2023-05-01) |
| Min/Max +/- allowed | 145.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1170.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1271.3 |
| K-factor | 36 |
| Floor | 776.8 |
| Highest | 1289.6 (2023-05-01) |
| Min/Max +/- allowed | 145.9 |
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 | 2025 ECA 2nd Youth Trials (U12) | Standard | 2025-07-26 | 2025-07-27 | Ethekwini (KED) | 6 | 1289.5 | 6 | 3.5 | 1392 | 0 | Details |
| 2 | Umhlali Chess Festival 2025 (Grade 4+5) | Rapid | 2025-06-21 | 2025-06-21 | iLembe (KIK) | 5 | 1273.3 | 5 | 2.5 | 1361.7 | 0 | Details |
| 3 | 2025 Eyethu Chess Academy Individual Invitation (C) | Standard | 2025-05-31 | 2025-05-31 | Ethekwini (KED) | 5 | 1273.3 | 5 | 2.5 | 1311.3 | 0 | Details |
| 4 | 2025 Eyethu Chess Academy Tournament (U12) | Standard | 2025-03-15 | 2025-03-15 | Ethekwini (KED) | 5 | 1249.6 | 5 | 3 | 1334.1 | 0 | Details |
| 5 | 2025 ECA 1st Youth Trials (D) | Standard | 2025-03-08 | 2025-03-09 | Ethekwini (KED) | 6 | 1249.6 | 6 | 3 | 1298 | 0 | Details |
| 6 | 2025 Westville Girls High School Rapid (U12) | Rapid | 2025-02-22 | 2025-02-22 | Ethekwini (KED) | 6 | 1254.2 | 6 | 3 | 1224 | 0 | Details |
| 7 | Westville Chess Club Rapid Rated February 2025 | Rapid | 2025-02-08 | 2025-02-08 | Ethekwini (KED) | 5 | 1254.2 | 5 | 2 | 1187.5 | 0 | Details |
| 8 | Westville Chess Club Tournament 2025 (Senior Primay) | Standard | 2025-02-01 | 2025-02-01 | Ethekwini (KED) | 5 | 1254.2 | 5 | 2 | 1290.6 | 0 | Details |
| 9 | Westville Chess Club January Rapid 2025 (Senior Primary) | Rapid | 2025-01-25 | 2025-01-25 | Ethekwini (KED) | 5 | 1238.8 | 5 | 3 | 1400.9 | 0 | Details |
| 10 | 2024 Eduvos Durban Book Fair Chess Tournament | Rapid | 2024-12-01 | 2024-12-01 | Ethekwini (KED) | 6 | 1228.6 | 6 | 3 | 1337.6 | 0 | Details |
| 11 | St James Rapid Rated Chess Tournament 2024 (Senior Primary) | Rapid | 2024-10-26 | 2024-10-26 | Ethekwini (KED) | 6 | 1236.6 | 6 | 3 | 1176.7 | 0 | Details |
| 12 | Ashton International College Chess Champs 2024 (Senior Primary) | Rapid | 2024-08-17 | 2024-08-17 | Ethekwini (KED) | 5 | 1200.6 | 5 | 4 | 1522.8 | 0 | Details |
| 13 | St James School Rapid Rated Chess Tournament 2024 (Senior Primary) | Rapid | 2024-07-20 | 2024-07-20 | Ethekwini (KED) | 6 | 1166.6 | 6 | 3.5 | 1332.2 | 0 | Details |
| 14 | Durban & Districts Chess Challenge 2024 (U12) | Rapid | 2024-06-08 | 2024-06-08 | Ethekwini (KED) | 7 | 1166.6 | 7 | 3 | 1225.9 | 0 | Details |
| 15 | Westville Chess Club Rapid Rated Tournament 2024 (Senior Primary) | Rapid | 2024-05-25 | 2024-05-25 | Ethekwini (KED) | 6 | 1194.2 | 6 | 2 | 1013.9 | 0 | Details |
| 16 | Chess Molecules Rapid 2023 (Grade 3+4) | Rapid | 2023-09-23 | 2023-09-23 | Ekurhuleni (GE) | 5 | 1198.5 | 5 | 2 | 1156.7 | 0 | Details |
| 17 | Chess Molecules 16 June Tournament 2023 (Grade 3+4) | Rapid | 2023-06-16 | 2023-06-16 | Ekurhuleni (GE) | 5 | 1212.1 | 5 | 2 | 1112.5 | 0 | Details |
| 18 | Umhlali Preparatory Rapid 2023 (Junior Primary) | Rapid | 2023-05-20 | 2023-05-20 | iLembe (KIK) | 5 | 1200 | 5 | 3 | 1287.4 | 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 | 99 |
| Wins | 48 |
| Draws | 4 |
| Losses | 47 |
| White | 50 |
| Black | 49 |
| White wins | 21 |
| Black wins | 27 |
| Score | 50 |
| Percent | 50.5 |
| Dp | 4.3 |
| AOR | 1269 |
| Performance | 1273.3 |
Rankings (Main)
| National | |
| Overall | 5589 |
| Gender | 4643 |
| Age group | 741 |
| Gender/Age | 549 |
| Provincial | |
| Overall | 56 |
| Gender | 52 |
| Age group | 4 |
| Gender/Age | 4 |
| Regional | |
| Overall | 56 |
| Gender | 52 |
| Age group | 4 |
| Gender/Age | 4 |
Rankings (Standard)
| National | |
| Overall | 5667 |
| Gender | 4629 |
| Age group | 804 |
| Gender/Age | 581 |
| Provincial | |
| Overall | 46 |
| Gender | 40 |
| Age group | 3 |
| Gender/Age | 3 |
| Regional | |
| Overall | 46 |
| Gender | 40 |
| Age group | 3 |
| Gender/Age | 3 |
Rankings (Rapid)
| National | |
| Overall | 2494 |
| Gender | 2024 |
| Age group | 464 |
| Gender/Age | 337 |
| Provincial | |
| Overall | 13 |
| Gender | 13 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 13 |
| Gender | 13 |
| 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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 27 |
| Score | 14.5 |
| Percent | 53.7 |
| Aor | 1308.4 |
| Dp | 31.5 |
| Prat | 1339.8 |
Performance (History)
| Games | 99 |
| Score | 50 |
| Percent | 50.5 |
| Aor | 1269 |
| Dp | 4.3 |
| Prat | 1273.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Nadesan, M (Mikhail) | 4 | 3 | 1 | Ashton International College Chess Champs 2024 (Senior Primary) | Umhlali Chess Festival 2025 (Grade 4+5) | Details |
| Overall | 2 | Parshotam, K (Kira) | 3 | 1 | 2 | Umhlali Preparatory Rapid 2023 (Junior Primary) | 2025 Westville Girls High School Rapid (U12) | Details |
| Overall | 3 | Tsouris, E (Ezra) | 2 | 0 | 2 | Westville Chess Club Rapid Rated February 2025 | 2025 Westville Girls High School Rapid (U12) | Details |
| Overall | 4 | Keating, R (Rourke) | 2 | 2 | 0 | Durban & Districts Chess Challenge 2024 (U12) | Westville Chess Club Rapid Rated February 2025 | Details |
| Overall | 5 | Dlomo, A (Adonaijah) | 2 | 1 | 1 | Westville Chess Club Rapid Rated Tournament 2024 (Senior Primary) | 2024 Eduvos Durban Book Fair Chess Tournament | Details |
| Standard | 1 | Ramlachan, K (Kairav) | 2 | 1 | 1 | 2025 ECA 1st Youth Trials (D) | 2025 ECA 2nd Youth Trials (U12) | Details |
| Standard | 2 | Masiteng, N (Nkosikhona) | 2 | 2 | 0 | 2025 Eyethu Chess Academy Tournament (U12) | 2025 Eyethu Chess Academy Individual Invitation (C) | Details |
| Standard | 3 | Cason, D (Daniel) | 2 | 2 | 0 | 2025 ECA 1st Youth Trials (D) | 2025 ECA 2nd Youth Trials (U12) | Details |
| Standard | 4 | Ellender, A (Asher) | 2 | 1 | 1 | Westville Chess Club Tournament 2025 (Senior Primay) | 2025 ECA 2nd Youth Trials (U12) | Details |
| Rapid | 1 | Nadesan, M (Mikhail) | 3 | 2 | 1 | Ashton International College Chess Champs 2024 (Senior Primary) | Umhlali Chess Festival 2025 (Grade 4+5) | Details |
| Rapid | 2 | Parshotam, K (Kira) | 3 | 1 | 2 | Umhlali Preparatory Rapid 2023 (Junior Primary) | 2025 Westville Girls High School Rapid (U12) | Details |
| Rapid | 3 | Wolde, F (Fesone) | 2 | 1 | 1 | St James School Rapid Rated Chess Tournament 2024 (Senior Primary) | St James Rapid Rated Chess Tournament 2024 (Senior Primary) | Details |
| Rapid | 4 | Keating, R (Rourke) | 2 | 2 | 0 | Durban & Districts Chess Challenge 2024 (U12) | Westville Chess Club Rapid Rated February 2025 | Details |
| Rapid | 5 | Dlomo, A (Adonaijah) | 2 | 1 | 1 | Westville Chess Club Rapid Rated Tournament 2024 (Senior Primary) | 2024 Eduvos Durban Book Fair Chess Tournament | Details |