PLAYER PAGE
Justin Oberholzer
1160151390West Coast (WCU)Personal
Main rating
| Rating | 1561.2 |
| K-factor | 32 |
| Floor | 1085.6 |
| Highest | 1585.6 (2026-01-01) |
| Min/Max +/- allowed | 96 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1461.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1561.2 |
| K-factor | 32 |
| Floor | 1085.6 |
| Highest | 1585.6 (2026-01-01) |
| Min/Max +/- allowed | 95.7 |
Standard rating
| Rating | 1556.5 |
| K-factor | 32 |
| Floor | 1056.5 |
| Highest | 1559.3 (2026-01-01) |
| Min/Max +/- allowed | 99.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1540.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1556.5 |
| K-factor | 32 |
| Floor | 1056.5 |
| Highest | 1559.3 (2026-01-01) |
| Min/Max +/- allowed | 99.4 |
Rapid rating
| Rating | 1485.7 |
| K-factor | 32 |
| Floor | 998.5 |
| Highest | 1498.5 (2026-01-01) |
| Min/Max +/- allowed | 108.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1509.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1485.7 |
| K-factor | 32 |
| Floor | 998.5 |
| Highest | 1498.5 (2026-01-01) |
| Min/Max +/- allowed | 108.4 |
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 | Lower West Coast Schools Prestige Individuals Championship 2026 (U11 Open) | Rapid | 2026-02-14 | 2026-02-14 | West Coast (WCU) | 5 | 1584.9 | 5 | 4 | 1517.9 | 0 | Details |
| 2 | West Coast League 2026 (B) | Rapid | 2026-02-07 | 2026-02-07 | West Coast (WCU) | 5 | 1584.9 | 4 | 2 | 1402.3 | 0 | Details |
| 3 | 2025 Mzansi Individual Championships (U10 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1545.3 | 6 | 4.5 | 1675.1 | 0 | Details |
| 4 | 2025 Mzansi Inter Provincial Team Championships (U10 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1545.3 | 6 | 3.5 | 1533.4 | 0 | Details |
| 5 | WCSC Kings & Queens 2025 (Kings) | Rapid | 2025-11-29 | 2025-11-29 | Cape Winelands (WCW) | 6 | 1545.3 | 4 | 3 | 1673 | 0 | Details |
| 6 | West Coast Schools Chess Grand Challenge League 2025 (PS Super) | Rapid | 2025-11-08 | 2025-11-08 | West Coast (WCU) | 5 | 1540.7 | 5 | 4 | 1571.3 | 0 | Details |
| 7 | Western Cape Schools - Top Schools 2025 (U9) | Standard | 2025-09-06 | 2025-09-07 | Overberg (WOS) | 6 | 1543.1 | 5 | 5 | 1790.2 | 0 | Details |
| 8 | Rooibos Open 2025 (Intermediate) | Standard | 2025-08-30 | 2025-08-30 | West Coast (WCU) | 5 | 1543.1 | 5 | 3 | 1275.3 | 0 | Details |
| 9 | Pedro Booyse Top Schools 2025 (U9) | Rapid | 2025-08-23 | 2025-08-23 | West Coast (WCU) | 6 | 1553.3 | 6 | 6 | 1688.9 | 0 | Details |
| 10 | Western Cape Women’s Championship 2025 (U10) | Standard | 2025-08-09 | 2025-08-09 | West Coast (WCU) | 5 | 1553.3 | 5 | 3 | 1471 | 0 | Details |
| 11 | Western Cape Women’s Championship 2025 (Sunday Rapid) | Rapid | 2025-08-10 | 2025-08-10 | West Coast (WCU) | 5 | 1553.3 | 5 | 3 | 1375.3 | 0 | Details |
| 12 | Lower West Coast Top Schools 2025 (U9) | Rapid | 2025-06-12 | 2025-06-12 | West Coast (WCU) | 6 | 1578.6 | 4 | 4 | 1596.5 | 0 | Details |
| 13 | 4th Curro Durbanville Rapid Open 2025 (Advanced) | Rapid | 2025-07-19 | 2025-07-19 | Cape Town (WCT) | 7 | 1578.6 | 7 | 2 | 1357.5 | 0 | Details |
| 14 | Western Cape Schools Individual Championship 2025 (U9 Boys) | Standard | 2025-05-17 | 2025-05-18 | Cape Winelands (WCW) | 6 | 1462.9 | 6 | 5 | 1708.2 | 0 | Details |
| 15 | West Coast And Mykonos Open 2025 (U10) | Standard | 2025-05-02 | 2025-05-04 | West Coast (WCU) | 5 | 1462.9 | 5 | 4 | 1551.6 | 0 | Details |
| 16 | West Coast Schools Chess Prestige 2025 (U9 Boys) | Standard | 2025-03-08 | 2025-03-08 | West Coast (WCU) | 6 | 1370.8 | 6 | 6 | 1652.4 | 0 | Details |
| 17 | Lower West Coast Prestige 2025 (U9 Boys) | Rapid | 2025-02-22 | 2025-02-22 | West Coast (WCU) | 5 | 1301.6 | 5 | 5 | 1593.8 | 0 | Details |
| 18 | West Coast Grand Challange League 2024 (PS Champions) | Rapid | 2024-10-26 | 2024-10-26 | West Coast (WCU) | 5 | 1280.2 | 5 | 4 | 1472.4 | 0 | Details |
| 19 | Western Cape Top Schools Championship 2024 (U11 Mixed) | Standard | 2024-08-30 | 2024-09-01 | Eden (WEG) | 6 | 1241.7 | 6 | 4 | 1425.1 | 0 | Details |
| 20 | Western Cape Women’s Championship 2024 (U10) | Standard | 2024-08-09 | 2024-08-09 | West Coast (WCU) | 5 | 1181.5 | 5 | 2 | 1260.3 | 0 | Details |
| 21 | Pedro Booyse Top Schools Championships 2024 (U7+U9) | Rapid | 2024-07-20 | 2024-07-20 | West Coast (WCU) | 7 | 1181.5 | 6 | 5 | 1483.4 | 0 | Details |
| 22 | West Coast & Mykonos Open 2024 (U10) | Standard | 2024-05-18 | 2024-05-18 | West Coast (WCU) | 5 | 1123.5 | 4 | 1 | 1019 | 0 | Details |
| 23 | Lower West Top Schools 2024 (U9+U11) | Rapid | 2024-05-11 | 2024-05-11 | West Coast (WCU) | 5 | 1123.5 | 5 | 3 | 1333.9 | 0 | Details |
| 24 | Western Cape PS Individuals Championship 2024 (U9 Boys) | Standard | 2024-05-04 | 2024-05-05 | West Coast (WCU) | 6 | 1123.5 | 6 | 3.5 | 1351.6 | 0 | Details |
| 25 | West Coast Schools Chess Prestige Championships 2024 (U9 Boys) | Rapid | 2024-03-09 | 2024-03-09 | West Coast (WCU) | 5 | 1098.2 | 5 | 3 | 1289 | 0 | Details |
| 26 | Lower West Coast Schools Chess Prestige 2024 (U9 Boys) | Rapid | 2024-02-17 | 2024-02-17 | West Coast (WCU) | 5 | 1058.9 | 5 | 3.5 | 1360.8 | 0 | Details |
| 27 | West Coast Primary Schools Grand Challenge League 2023 (Primary School) | Rapid | 2023-10-21 | 2023-10-21 | West Coast (WCU) | 5 | 1081.4 | 5 | 0 | 819.6 | 0 | Details |
| 28 | Western Cape Top Schools 2023 (U7 Mixed) | Standard | 2023-09-02 | 2023-09-03 | Cape Winelands (WCW) | 5 | 1169.5 | 5 | 0 | 636.3 | 0 | Details |
| 29 | Pedro Booyse Top Schools 2023 (U7+U9) | Rapid | 2023-07-29 | 2023-07-29 | West Coast (WCU) | 5 | 1221.2 | 5 | 0 | 759.1 | 0 | Details |
| 30 | Western Cape PS Individuals 2023 (U7 Boys) | Standard | 2023-05-05 | 2023-05-06 | Cape Town (WCT) | 6 | 1237 | 6 | 2.5 | 1161.4 | 0 | Details |
| 31 | Lower West Coast Primary Schools Prestige Championships 2023 (U7 Boys+Girls) | Rapid | 2023-03-04 | 2023-03-04 | West Coast (WCU) | 5 | 1200 | 5 | 4 | 1455 | 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 | 9 |
| Wins | 6 |
| Draws | 0 |
| Losses | 3 |
| White | 5 |
| Black | 4 |
| White wins | 4 |
| Black wins | 2 |
| Score | 6 |
| Percent | 66.7 |
| Dp | 141.7 |
| AOR | 1324.9 |
| Performance | 1466.5 |
Game statistics (History)
| Games | 162 |
| Wins | 100 |
| Draws | 5 |
| Losses | 57 |
| White | 84 |
| Black | 78 |
| White wins | 49 |
| Black wins | 51 |
| Score | 102.5 |
| Percent | 63.3 |
| Dp | 112.8 |
| AOR | 1288.5 |
| Performance | 1401.3 |
Rankings (Main)
| National | |
| Overall | 1237 |
| Gender | 1127 |
| Age group | 65 |
| Gender/Age | 57 |
| Provincial | |
| Overall | 374 |
| Gender | 336 |
| Age group | 18 |
| Gender/Age | 16 |
| Regional | |
| Overall | 13 |
| Gender | 13 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Standard)
| National | |
| Overall | 1181 |
| Gender | 1068 |
| Age group | 68 |
| Gender/Age | 58 |
| Provincial | |
| Overall | 336 |
| Gender | 300 |
| Age group | 18 |
| Gender/Age | 16 |
| Regional | |
| Overall | 7 |
| Gender | 7 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Rapid)
| National | |
| Overall | 358 |
| Gender | 335 |
| Age group | 25 |
| Gender/Age | 22 |
| Provincial | |
| Overall | 179 |
| Gender | 163 |
| Age group | 15 |
| Gender/Age | 12 |
| Regional | |
| Overall | 32 |
| Gender | 26 |
| Age group | 5 |
| Gender/Age | 2 |
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 | 9 |
| Score | 6 |
| Percent | 66.7 |
| Aor | 1324.9 |
| Dp | 141.7 |
| Prat | 1466.5 |
Performance (12 months)
| Games | 84 |
| Score | 62 |
| Percent | 73.8 |
| Aor | 1351.2 |
| Dp | 202.4 |
| Prat | 1553.6 |
Performance (History)
| Games | 162 |
| Score | 102.5 |
| Percent | 63.3 |
| Aor | 1288.5 |
| Dp | 112.8 |
| Prat | 1401.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Erasmus, M (Migal) | 6 | 3 | 3 | Lower West Coast Prestige 2025 (U9 Boys) | West Coast Schools Chess Grand Challenge League 2025 (PS Super) | Details |
| Overall | 2 | Revmatas, N (Nikolai) | 4 | 3 | 1 | Lower West Coast Primary Schools Prestige Championships 2023 (U7 Boys+Girls) | West Coast Schools Chess Grand Challenge League 2025 (PS Super) | Details |
| Overall | 3 | Heynse, D (Deraygon) | 4 | 2 | 2 | Lower West Coast Top Schools 2025 (U9) | Pedro Booyse Top Schools 2025 (U9) | Details |
| Overall | 4 | Da Camara, I (Izabella) | 3 | 1 | 2 | Lower West Coast Primary Schools Prestige Championships 2023 (U7 Boys+Girls) | West Coast & Mykonos Open 2024 (U10) | Details |
| Overall | 5 | Niemand, J (Jano) | 3 | 2 | 1 | Lower West Coast Prestige 2025 (U9 Boys) | Western Cape Women’s Championship 2025 (U10) | Details |
| Standard | 1 | Ramonyaluoe, M (Madalitso) | 2 | 1 | 1 | West Coast And Mykonos Open 2025 (U10) | Western Cape Women’s Championship 2025 (U10) | Details |
| Standard | 2 | Erasmus, M (Migal) | 2 | 2 | 0 | West Coast Schools Chess Prestige 2025 (U9 Boys) | West Coast And Mykonos Open 2025 (U10) | Details |
| Standard | 3 | Niemand, J (Jano) | 2 | 1 | 1 | West Coast Schools Chess Prestige 2025 (U9 Boys) | Western Cape Women’s Championship 2025 (U10) | Details |
| Standard | 4 | Rehse, N (Nathan) | 2 | 1 | 1 | Western Cape Women’s Championship 2025 (U10) | 2025 Mzansi Individual Championships (U10 Open) | Details |
| Standard | 5 | Louw, T (Thomas) | 2 | 1 | 1 | West Coast And Mykonos Open 2025 (U10) | Western Cape Women’s Championship 2025 (U10) | Details |
| Rapid | 1 | Revmatas, N (Nikolai) | 4 | 3 | 1 | Lower West Coast Primary Schools Prestige Championships 2023 (U7 Boys+Girls) | West Coast Schools Chess Grand Challenge League 2025 (PS Super) | Details |
| Rapid | 2 | Heynse, D (Deraygon) | 4 | 2 | 2 | Lower West Coast Top Schools 2025 (U9) | Pedro Booyse Top Schools 2025 (U9) | Details |
| Rapid | 3 | Erasmus, M (Migal) | 4 | 1 | 3 | Lower West Coast Prestige 2025 (U9 Boys) | West Coast Schools Chess Grand Challenge League 2025 (PS Super) | Details |
| Rapid | 4 | Smit, G (Gerrit) | 2 | 1 | 1 | WCSC Kings & Queens 2025 (Kings) | WCSC Kings & Queens 2025 (Kings) | Details |
| Rapid | 5 | Van Eeden, C (Christiaan) | 2 | 1 | 1 | Lower West Coast Primary Schools Prestige Championships 2023 (U7 Boys+Girls) | Lower West Coast Schools Chess Prestige 2024 (U9 Boys) | Details |