PLAYER PAGE
Jonathan Arlow
1080113577West Rand (GWR)Personal
Main rating
| Rating | 1307.7 |
| K-factor | 36 |
| Floor | 854.6 |
| Highest | 1354.6 (2025-05-05) |
| Min/Max +/- allowed | 133 |
| Rating Change () | |
| Games | 5 |
| Score | 1 |
| We | 2.58 |
| SWe | -1.31 |
| Temp +/- | -47.1 |
| Penalties | 0 |
| Weight perform | 1172 |
| Final +/- | -47.1 |
| New Rating () | |
| Rating | 1260.5 |
| K-factor | 36 |
| Floor | 854.6 |
| Highest | 1354.6 (2025-05-05) |
| Min/Max +/- allowed | 133 |
Standard rating
| Rating | 1291.9 |
| K-factor | 36 |
| Floor | 849.8 |
| Highest | 1349.8 (2025-05-05) |
| Min/Max +/- allowed | 134 |
| Rating Change () | |
| Games | 5 |
| Score | 1 |
| We | 2.5 |
| SWe | -1.5 |
| Temp +/- | -53.9 |
| Penalties | 0 |
| Weight perform | 1172 |
| Final +/- | -53.9 |
| New Rating () | |
| Rating | 1238.1 |
| K-factor | 36 |
| Floor | 849.8 |
| Highest | 1349.8 (2025-05-05) |
| Min/Max +/- allowed | 134 |
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 |
| 1 | FIDE in the West 2026 (Rooks) | Standard | 2026-04-11 | 2026-04-11 | West Rand (GWR) | 5 | 1307.7 | 5 | 1 | 1032.1 | -47.1 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | West Rand Open 2026 (Rooks) | Standard | 2026-02-07 | 2026-02-07 | West Rand (GWR) | 5 | 1286.1 | 5 | 3 | 1447.8 | 10 | Details |
| 2 | Gauteng Inter-Region at Emerald Resort 2025 (U18 Championship) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1283.7 | 4 | 2 | 1280.5 | -0.2 | Details |
| 3 | 2025 Gauteng Top Schools Teams (U17) | Standard | 2025-08-30 | 2025-08-30 | Tshwane (GTP) | 5 | 1342.2 | 5 | 3 | 1386.1 | 3.7 | Details |
| 4 | West Rand Closed 2025 (U18) | Standard | 2025-10-18 | 2025-10-18 | West Rand (GWR) | 5 | 1342.2 | 4 | 0 | 970.5 | -29 | Details |
| 5 | West Rand Trials 2025 (U18) | Standard | 2025-09-06 | 2025-09-06 | West Rand (GWR) | 5 | 1354 | 5 | 2 | 1307.6 | -5.3 | Details |
| 6 | West Rand Women's Day Open 2025 (Rooks) | Standard | 2025-08-09 | 2025-08-09 | West Rand (GWR) | 5 | 1319.5 | 5 | 3 | 1421 | 9.1 | Details |
| 7 | 2025 D2 Schools League Finals (U17) | Standard | 2025-07-26 | 2025-07-26 | West Rand (GWR) | 5 | 1343.6 | 3 | 1 | 1126.1 | -13.4 | Details |
| 8 | 2025 D2 Schools Individuals (U18 Open) | Standard | 2025-05-10 | 2025-05-10 | West Rand (GWR) | 5 | 1354.6 | 3 | 1 | 1262.6 | -6.1 | Details |
| 9 | FIDE in The West 2025 (Rooks) | Standard | 2025-04-12 | 2025-04-12 | West Rand (GWR) | 5 | 1296.5 | 5 | 3 | 1441.1 | 13.4 | Details |
| 10 | West Rand Juniors 2025 (U18) | Standard | 2025-03-08 | 2025-03-08 | West Rand (GWR) | 5 | 1242.3 | 4 | 3 | 1515.5 | 21.2 | Details |
| 11 | Gauteng Inter-Region at UJ 2024 (U18 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1224 | 5 | 3 | 1320.2 | 10.1 | Details |
| 12 | 2024 West Rand Closed (U18) | Standard | 2024-10-12 | 2024-10-12 | West Rand (GWR) | 5 | 1218.3 | 5 | 2 | 1244.5 | 3.2 | Details |
| 13 | 2024 West Rand Trials (U18) | Standard | 2024-09-07 | 2024-09-07 | West Rand (GWR) | 5 | 1212.3 | 5 | 2 | 1257.5 | 3.3 | Details |
| 14 | 2024 West Rand Rappies Open (Rooks) | Standard | 2024-08-03 | 2024-08-03 | West Rand (GWR) | 5 | 1235.9 | 5 | 1 | 1095.5 | -13.1 | Details |
| 15 | D2 School League Finals 2024 (U17) | Standard | 2024-07-20 | 2024-07-20 | West Rand (GWR) | 5 | 1231.7 | 4 | 2 | 1262 | 2.3 | Details |
| 16 | FIDE in the West 2024 (Rooks) | Standard | 2024-06-08 | 2024-06-08 | West Rand (GWR) | 5 | 1236.5 | 5 | 2 | 1218.3 | -2.7 | Details |
| 17 | 2024 D2 Schools Individuals (U18 Boys) | Standard | 2024-05-04 | 2024-05-04 | West Rand (GWR) | 5 | 1237.1 | 5 | 2 | 1242 | -0.3 | Details |
| 18 | 2024 West Rand RHS Open (Rooks) | Standard | 2024-04-13 | 2024-04-13 | West Rand (GWR) | 5 | 1220.1 | 5 | 2.5 | 1309.7 | 9.5 | Details |
| 19 | 2024 West Rand Juniors (U18) | Standard | 2024-03-09 | 2024-03-09 | West Rand (GWR) | 5 | 1224.6 | 5 | 2 | 1208.4 | -2.5 | Details |
| 20 | 2024 Gauteng Inter-Region Chess Championship (U16A) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1249.3 | 5 | 1 | 1133.9 | -13.7 | Details |
| 21 | 2023 West Rand Trials (U16) | Standard | 2023-09-09 | 2023-09-09 | West Rand (GWR) | 5 | 1223.3 | 5 | 3 | 1364.8 | 14.4 | Details |
| 22 | 2023 West Rand RHS Open (Bishops) | Standard | 2023-06-10 | 2023-06-10 | West Rand (GWR) | 5 | 1204.2 | 5 | 3 | 1305.6 | 10.6 | Details |
| 23 | West Rand Juniors 2023 (U16) | Standard | 2023-03-18 | 2023-03-18 | West Rand (GWR) | 5 | 1200 | 4 | 2 | 1229.3 | 2.3 | Details |
| 24 | WR Tournament and Coaching 2023 (Rooks) | Standard | 2023-02-25 | 2023-02-25 | West Rand (GWR) | 5 | 1175.1 | 5 | 3 | 1296.5 | 12.4 | Details |
| 25 | D2 Schools Individuals 2019 (U11) | Standard | 2019-05-18 | 2019-05-18 | West Rand (GWR) | 5 | 1200 | 4 | 1.5 | 1040 | -12.4 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 1 |
| Draws | 0 |
| Losses | 4 |
| White | 2 |
| Black | 3 |
| White wins | 0 |
| Black wins | 1 |
| Score | 1 |
| Percent | 20 |
| Dp | -255 |
| AOR | 1287.1 |
| Performance | 1032.1 |
Game statistics ()
| Games | 10 |
| Wins | 4 |
| Draws | 0 |
| Losses | 6 |
| White | 5 |
| Black | 5 |
| White wins | 2 |
| Black wins | 2 |
| Score | 4 |
| Percent | 40 |
| Dp | -85 |
| AOR | 1324.9 |
| Performance | 1239.9 |
Game statistics (History)
| Games | 120 |
| Wins | 53 |
| Draws | 2 |
| Losses | 65 |
| White | 63 |
| Black | 57 |
| White wins | 28 |
| Black wins | 25 |
| Score | 54 |
| Percent | 45 |
| Dp | -42.5 |
| AOR | 1305.2 |
| Performance | 1262.7 |
Rankings (Main)
| National | |
| Overall | 5909 |
| Gender | 4869 |
| Age group | 749 |
| Gender/Age | 628 |
| Provincial | |
| Overall | 1956 |
| Gender | 1629 |
| Age group | 256 |
| Gender/Age | 214 |
| Regional | |
| Overall | 163 |
| Gender | 129 |
| Age group | 29 |
| Gender/Age | 24 |
Rankings (Standard)
| National | |
| Overall | 5820 |
| Gender | 4726 |
| Age group | 727 |
| Gender/Age | 608 |
| Provincial | |
| Overall | 2048 |
| Gender | 1674 |
| Age group | 261 |
| Gender/Age | 217 |
| Regional | |
| Overall | 189 |
| Gender | 148 |
| Age group | 33 |
| Gender/Age | 28 |
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 | 5 |
| Score | 1 |
| Percent | 20 |
| Aor | 1287.1 |
| Dp | -255 |
| Prat | 1032.1 |
Performance ()
| Games | 10 |
| Score | 4 |
| Percent | 40 |
| Aor | 1324.9 |
| Dp | -85 |
| Prat | 1239.9 |
Performance (12 months)
| Games | 39 |
| Score | 16 |
| Percent | 41 |
| Aor | 1336.4 |
| Dp | -76.3 |
| Prat | 1260.1 |
Performance (History)
| Games | 120 |
| Score | 54 |
| Percent | 45 |
| Aor | 1305.2 |
| Dp | -42.5 |
| Prat | 1262.7 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Moraka, L (Lesego) | 4 | 2 | 2 | 2024 West Rand Juniors (U18) | West Rand Trials 2025 (U18) | Details |
| Overall | 2 | Pillay, L (Leeyah) | 3 | 2 | 1 | 2024 West Rand Rappies Open (Rooks) | West Rand Closed 2025 (U18) | Details |
| Overall | 3 | Perry-Fisher, IE (Iain Eric) | 3 | 1 | 2 | 2024 West Rand Rappies Open (Rooks) | West Rand Trials 2025 (U18) | Details |
| Overall | 4 | Udodi, E (Edubechukwu) | 2 | 1 | 1 | D2 School League Finals 2024 (U17) | West Rand Closed 2025 (U18) | Details |
| Overall | 5 | Badenhorst, JJ (Junaid Jaydon) | 2 | 2 | 0 | 2023 West Rand Trials (U16) | 2024 West Rand Juniors (U18) | Details |
| Standard | 1 | Moraka, L (Lesego) | 4 | 2 | 2 | 2024 West Rand Juniors (U18) | West Rand Trials 2025 (U18) | Details |
| Standard | 2 | Pillay, L (Leeyah) | 3 | 2 | 1 | 2024 West Rand Rappies Open (Rooks) | West Rand Closed 2025 (U18) | Details |
| Standard | 3 | Perry-Fisher, IE (Iain Eric) | 3 | 1 | 2 | 2024 West Rand Rappies Open (Rooks) | West Rand Trials 2025 (U18) | Details |
| Standard | 4 | Mbasane, D (David) | 2 | 2 | 0 | West Rand Juniors 2023 (U16) | 2024 West Rand Rappies Open (Rooks) | Details |
| Standard | 5 | Ilunga, G (Gradi) | 2 | 1 | 1 | 2024 D2 Schools Individuals (U18 Boys) | 2024 West Rand Closed (U18) | Details |