PLAYER PAGE
Justin Harmse
1960191704Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1309.7 |
| K-factor | 36 |
| Floor | 809.7 |
| Highest | 1309.7 (2026-02-28) |
| Min/Max +/- allowed | 142 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1195.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1309.7 |
| K-factor | 36 |
| Floor | 809.7 |
| Highest | 1309.7 (2026-02-28) |
| Min/Max +/- allowed | 141.8 |
Standard rating
| Rating | 1307.5 |
| K-factor | 36 |
| Floor | 807.5 |
| Highest | 1307.5 (2025-11-01) |
| Min/Max +/- allowed | 142.3 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1307.5 |
| K-factor | 36 |
| Floor | 807.5 |
| Highest | 1307.5 (2025-11-01) |
| Min/Max +/- allowed | 142.3 |
Rapid rating
| Rating | 1161 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-11-01) |
| 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 | 1161 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-11-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1243.7 |
| K-factor | 36 |
| Floor | 807.8 |
| Highest | 1307.8 (2025-08-01) |
| Min/Max +/- allowed | 142.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1243.7 |
| K-factor | 36 |
| Floor | 807.8 |
| Highest | 1307.8 (2025-08-01) |
| Min/Max +/- allowed | 142.2 |
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 | Randburg Chess Club New Year Rapid 2026 | Rapid | 2026-01-27 | 2026-02-03 | Johannesburg Metro (GJM) | 6 | 1247.6 | 6 | 2 | 1379.5 | 0 | Details |
| 2 | Randburg Chess Club New Year Blitz 2026 | Blitz | 2026-01-20 | 2026-01-20 | Johannesburg Metro (GJM) | 7 | 1247.6 | 0 | 0 | 0 | 0 | Details |
| 3 | Randburg Chess Club Rapid Championship 2025 | Rapid | 2025-09-30 | 2025-10-07 | Johannesburg Metro (GJM) | 6 | 1260.4 | 3 | 0 | 1065.1 | 0 | Details |
| 4 | Randburg Winter Swiss 2025 | Standard | 2025-07-29 | 2025-09-16 | Johannesburg Metro (GJM) | 8 | 1227.8 | 4 | 2.5 | 1545.7 | 0 | Details |
| 5 | Randburg Spring Blitz 2025 | Blitz | 2025-09-23 | 2025-09-23 | Johannesburg Metro (GJM) | 7 | 1227.8 | 6 | 1 | 1138.9 | 0 | Details |
| 6 | Tshwane Chess Club Clash 2025 (Open) | Standard | 2025-09-13 | 2025-09-13 | Tshwane (GTP) | 5 | 1227.8 | 5 | 2.5 | 1409.8 | 0 | Details |
| 7 | Randburg Chess Club Winter Rapid 2025 | Rapid | 2025-07-15 | 2025-07-22 | Johannesburg Metro (GJM) | 6 | 1203.3 | 5 | 1 | 1208.2 | 0 | Details |
| 8 | Randburg Club Champs Blitz 2025 | Blitz | 2025-07-08 | 2025-07-08 | Johannesburg Metro (GJM) | 7 | 1203.3 | 7 | 4 | 1590.8 | 0 | Details |
| 9 | Neil Savage Memorial Randburg Club Champs 2025 | Standard | 2025-05-06 | 2025-06-24 | Johannesburg Metro (GJM) | 8 | 1222.8 | 2 | 0 | 979.5 | 0 | Details |
| 10 | Randburg Chess Club New Year Swiss 2025 | Standard | 2025-02-11 | 2025-04-01 | Johannesburg Metro (GJM) | 8 | 1191 | 3 | 2 | 1480.3 | 0 | Details |
| 11 | Randburg Chess Club New Year Rapid 2025 | Rapid | 2025-01-28 | 2025-02-04 | Johannesburg Metro (GJM) | 6 | 1192.5 | 3 | 0 | 962.8 | 0 | Details |
| 12 | Randburg New Year Blitz 2025 | Blitz | 2025-01-21 | 2025-01-21 | Johannesburg Metro (GJM) | 9 | 1195.6 | 8 | 2 | 1156.7 | 0 | Details |
| 13 | Randburg Summer Swiss 2024 | Standard | 2024-10-29 | 2024-11-26 | Johannesburg Metro (GJM) | 5 | 1197.1 | 4 | 1 | 1189.4 | 0 | Details |
| 14 | Randburg Spring Swiss 2024 | Standard | 2024-08-20 | 2024-10-08 | Johannesburg Metro (GJM) | 7 | 1195.6 | 6 | 2 | 1209.1 | 0 | Details |
| 15 | Randburg Chess Club Winter Swiss 2024 | Standard | 2024-06-11 | 2024-07-30 | Johannesburg Metro (GJM) | 7 | 1179.1 | 4 | 1 | 1300.5 | 0 | Details |
| 16 | Randburg Autumn Rapid 2024 | Rapid | 2024-05-28 | 2024-06-04 | Johannesburg Metro (GJM) | 6 | 1179.3 | 5 | 1 | 1174.3 | 0 | Details |
| 17 | Randburg Chess Club Championship 2024 | Standard | 2024-04-09 | 2024-05-21 | Johannesburg Metro (GJM) | 7 | 1183.8 | 5 | 1 | 1172.4 | 0 | Details |
| 18 | Randburg New Year Rapid 2024 | Rapid | 2024-01-23 | 2024-01-30 | Johannesburg Metro (GJM) | 6 | 1200 | 6 | 1 | 1087 | 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 | 6 |
| Wins | 2 |
| Draws | 0 |
| Losses | 4 |
| White | 3 |
| Black | 3 |
| White wins | 0 |
| Black wins | 2 |
| Score | 2 |
| Percent | 33.3 |
| Dp | -141.7 |
| AOR | 1521.2 |
| Performance | 1379.5 |
Game statistics (History)
| Games | 82 |
| Wins | 23 |
| Draws | 2 |
| Losses | 57 |
| White | 37 |
| Black | 45 |
| White wins | 10 |
| Black wins | 13 |
| Score | 24 |
| Percent | 29.3 |
| Dp | -176.2 |
| AOR | 1429 |
| Performance | 1252.7 |
Rankings (Main)
| National | |
| Overall | 5648 |
| Gender | 4689 |
| Age group | 1410 |
| Gender/Age | 1285 |
| Provincial | |
| Overall | 1906 |
| Gender | 1586 |
| Age group | 436 |
| Gender/Age | 398 |
| Regional | |
| Overall | 526 |
| Gender | 458 |
| Age group | 146 |
| Gender/Age | 138 |
Rankings (Standard)
| National | |
| Overall | 5145 |
| Gender | 4238 |
| Age group | 1213 |
| Gender/Age | 1102 |
| Provincial | |
| Overall | 1853 |
| Gender | 1529 |
| Age group | 386 |
| Gender/Age | 352 |
| Regional | |
| Overall | 482 |
| Gender | 416 |
| Age group | 117 |
| Gender/Age | 111 |
Rankings (Rapid)
| National | |
| Overall | 5604 |
| Gender | 4204 |
| Age group | 662 |
| Gender/Age | 595 |
| Provincial | |
| Overall | 1060 |
| Gender | 800 |
| Age group | 140 |
| Gender/Age | 130 |
| Regional | |
| Overall | 385 |
| Gender | 318 |
| Age group | 80 |
| Gender/Age | 76 |
Rankings (Blitz)
| National | |
| Overall | 376 |
| Gender | 349 |
| Age group | 183 |
| Gender/Age | 178 |
| Provincial | |
| Overall | 128 |
| Gender | 115 |
| Age group | 59 |
| Gender/Age | 59 |
| Regional | |
| Overall | 73 |
| Gender | 67 |
| Age group | 30 |
| Gender/Age | 30 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 6 |
| Score | 2 |
| Percent | 33.3 |
| Aor | 1521.2 |
| Dp | -141.7 |
| Prat | 1379.5 |
Performance (12 months)
| Games | 41 |
| Score | 15 |
| Percent | 36.6 |
| Aor | 1458.2 |
| Dp | -114 |
| Prat | 1344.2 |
Performance (History)
| Games | 82 |
| Score | 24 |
| Percent | 29.3 |
| Aor | 1429 |
| Dp | -176.2 |
| Prat | 1252.7 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Tracey, T (Terence) | 7 | 3 | 4 | Randburg New Year Rapid 2024 | Randburg Winter Swiss 2025 | Details |
| Overall | 2 | Jolliffe, SR (Shaun) | 4 | 2 | 2 | Randburg Club Champs Blitz 2025 | Randburg Chess Club Rapid Championship 2025 | Details |
| Overall | 3 | Martynov, A (Alexey) | 4 | 2 | 2 | Randburg Chess Club Championship 2024 | Randburg Chess Club Rapid Championship 2025 | Details |
| Overall | 4 | Mungal, Z (Zoey) | 3 | 1 | 2 | Randburg Chess Club Championship 2024 | Randburg Chess Club Winter Swiss 2024 | Details |
| Overall | 5 | Pillay, N (Nico) | 3 | 2 | 1 | Randburg New Year Rapid 2024 | Randburg Chess Club New Year Rapid 2026 | Details |
| Standard | 1 | Tracey, T (Terence) | 4 | 3 | 1 | Randburg Spring Swiss 2024 | Randburg Winter Swiss 2025 | Details |
| Standard | 2 | Luchies, M (Maria) | 3 | 3 | 0 | Randburg Chess Club Championship 2024 | Randburg Summer Swiss 2024 | Details |
| Standard | 3 | Goldberg, M (Mark) | 2 | 0 | 2 | Randburg Spring Swiss 2024 | Randburg Chess Club New Year Swiss 2025 | Details |
| Standard | 4 | Mungal, Z (Zoey) | 2 | 1 | 1 | Randburg Chess Club Championship 2024 | Randburg Chess Club Winter Swiss 2024 | Details |
| Rapid | 1 | Pillay, N (Nico) | 2 | 1 | 1 | Randburg New Year Rapid 2024 | Randburg Chess Club New Year Rapid 2026 | Details |
| Rapid | 2 | Jolliffe, SR (Shaun) | 2 | 1 | 1 | Randburg Chess Club Winter Rapid 2025 | Randburg Chess Club Rapid Championship 2025 | Details |
| Rapid | 3 | Tracey, T (Terence) | 2 | 0 | 2 | Randburg New Year Rapid 2024 | Randburg Chess Club New Year Rapid 2025 | Details |
| Rapid | 4 | Sparks, SJW (Stephen) | 2 | 1 | 1 | Randburg Autumn Rapid 2024 | Randburg Chess Club Winter Rapid 2025 | Details |
| Rapid | 5 | Martynov, A (Alexey) | 2 | 0 | 2 | Randburg Autumn Rapid 2024 | Randburg Chess Club Rapid Championship 2025 | Details |
| Blitz | 1 | Jolliffe, SR (Shaun) | 2 | 1 | 1 | Randburg Club Champs Blitz 2025 | Randburg Spring Blitz 2025 | Details |
| Blitz | 2 | Hangelbroek, P (Peter) | 2 | 1 | 1 | Randburg New Year Blitz 2025 | Randburg Club Champs Blitz 2025 | Details |
| Blitz | 3 | Cembi, L (Lwazi) | 2 | 1 | 1 | Randburg Club Champs Blitz 2025 | Randburg Spring Blitz 2025 | Details |