PLAYER PAGE
Jay Van Der Berg
1980149135Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1521.2 |
| K-factor | 32 |
| Floor | 1010.3 |
| Highest | 1521.2 (2026-02-28) |
| Min/Max +/- allowed | 105 |
| Rating Change () | |
| Games | 17 |
| Score | 8 |
| We | 10.72 |
| SWe | -2.66 |
| Temp +/- | -85.2 |
| Penalties | 0 |
| Weight perform | 1380.6 |
| Final +/- | -85.2 |
| New Rating () | |
| Rating | 1436 |
| K-factor | 32 |
| Floor | 1010.3 |
| Highest | 1521.2 (2026-02-28) |
| Min/Max +/- allowed | 104.9 |
Standard rating
| Rating | 1519.7 |
| K-factor | 32 |
| Floor | 991.6 |
| Highest | 1519.7 (2026-02-28) |
| Min/Max +/- allowed | 105.2 |
| Rating Change () | |
| Games | 9 |
| Score | 4 |
| We | 6.71 |
| SWe | -2.71 |
| Temp +/- | -86.9 |
| Penalties | 0 |
| Weight perform | 1416 |
| Final +/- | -86.9 |
| New Rating () | |
| Rating | 1432.8 |
| K-factor | 32 |
| Floor | 991.6 |
| Highest | 1519.7 (2026-02-28) |
| Min/Max +/- allowed | 105.2 |
Rapid rating
| Rating | 1226.4 |
| K-factor | 36 |
| Floor | 726.4 |
| Highest | 1306.3 (2023-02-01) |
| Min/Max +/- allowed | 142.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1226.4 |
| K-factor | 36 |
| Floor | 726.4 |
| Highest | 1306.3 (2023-02-01) |
| Min/Max +/- allowed | 142.5 |
Blitz rating
| Rating | 1293 |
| K-factor | 36 |
| Floor | 800 |
| Highest | 1300 (2024-03-01) |
| Min/Max +/- allowed | 143.8 |
| Rating Change () | |
| Games | 8 |
| Score | 4 |
| We | 3.19 |
| SWe | 0.28 |
| Temp +/- | 10.2 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | +10.2 |
| New Rating () | |
| Rating | 1303.2 |
| K-factor | 36 |
| Floor | 803.2 |
| Highest | 1303.2 (2026-07-01) |
| Min/Max +/- allowed | 143.1 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | South African Open Championship 2026 (Intermediate) | Classical | 2026-06-28 | 2026-07-05 | Cape Town (WCT) | 9 | 1521.2 | 9 | 4 | 1280.1 | -82.3 | Details |
| 2 | South African Open Championship 2026 (Blitz) | Blitz | 2026-06-27 | 2026-06-27 | Cape Town (WCT) | 9 | 1521.2 | 8 | 4 | 1505.1 | -0.9 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 JMC Kick off Tournament (B) | Standard | 2026-02-01 | 2026-02-01 | Johannesburg Metro (GJM) | 5 | 1490.2 | 5 | 3.5 | 1613.2 | 7.1 | Details |
| 2 | Gauteng Inter-Region at Emerald Resort 2025 (Adults+Seniors) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1453.9 | 5 | 3 | 1678.9 | 22.7 | Details |
| 3 | Tshwane Chess Club Clash 2025 (Prestige) | Standard | 2025-09-13 | 2025-09-13 | Tshwane (GTP) | 5 | 1484 | 5 | 0 | 1339.4 | -18.8 | Details |
| 4 | JMC - Trinity Randpark Ridge 2025 (B) | Standard | 2025-07-26 | 2025-07-26 | Johannesburg Metro (GJM) | 5 | 1280.3 | 5 | 4 | 1749.5 | 46.3 | Details |
| 5 | South African Open 2025 (B) | Classical | 2025-06-28 | 2025-07-05 | Johannesburg Metro (GJM) | 11 | 1280.3 | 11 | 4.5 | 1388.5 | 26.6 | Details |
| 6 | South African Open 2025 (Blitz) | Blitz | 2025-07-02 | 2025-07-02 | Johannesburg Metro (GJM) | 9 | 1280.3 | 9 | 4 | 1451.6 | 6.6 | Details |
| 7 | JMC Helpmekaar 2025 (B) | Standard | 2025-06-01 | 2025-06-01 | Johannesburg Metro (GJM) | 5 | 1208.1 | 5 | 3 | 1616.5 | 40.2 | Details |
| 8 | Wanderers Blitz Tournament 2024 | Blitz | 2024-03-23 | 2024-03-23 | Johannesburg Metro (GJM) | 9 | 1201 | 9 | 3.5 | 1315.6 | 3.9 | Details |
| 9 | JMC Kick Off Tournament 2024 (B) | Standard | 2024-01-28 | 2024-01-28 | Johannesburg Metro (GJM) | 5 | 1187.3 | 5 | 2 | 1260 | 7.6 | Details |
| 10 | Africawide Chess Championship 2023 (Open) | Standard | 2023-11-03 | 2023-11-05 | Johannesburg Metro (GJM) | 7 | 1211.7 | 6 | 0.5 | 1112.7 | -13.5 | Details |
| 11 | Randburg Winter Swiss 2023 | Standard | 2023-06-13 | 2023-07-25 | Johannesburg Metro (GJM) | 7 | 1217.5 | 7 | 2 | 1207.4 | -3.4 | Details |
| 12 | JNW Open - Trinityhouse Little Falls 2023 (B) | Standard | 2023-06-24 | 2023-06-24 | Johannesburg Metro (GJM) | 5 | 1232.4 | 5 | 1 | 1139 | -8.6 | Details |
| 13 | Mzansi Rapid 2023 (Intermediate) | Rapid | 2023-02-04 | 2023-02-04 | Johannesburg Metro (GJM) | 6 | 1200 | 5 | 3 | 1449.8 | 16.3 | 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 | 22 |
| Wins | 11 |
| Draws | 1 |
| Losses | 10 |
| White | 11 |
| Black | 11 |
| White wins | 4 |
| Black wins | 7 |
| Score | 11.5 |
| Percent | 52.3 |
| Dp | 19.3 |
| AOR | 1418.3 |
| Performance | 1437.6 |
Game statistics (History)
| Games | 99 |
| Wins | 38 |
| Draws | 8 |
| Losses | 53 |
| White | 48 |
| Black | 51 |
| White wins | 18 |
| Black wins | 20 |
| Score | 42 |
| Percent | 42.4 |
| Dp | -64.4 |
| AOR | 1459.3 |
| Performance | 1394.9 |
Rankings (Main)
| National | |
| Overall | 1771 |
| Gender | 1575 |
| Age group | 704 |
| Gender/Age | 665 |
| Provincial | |
| Overall | 635 |
| Gender | 556 |
| Age group | 241 |
| Gender/Age | 228 |
| Regional | |
| Overall | 229 |
| Gender | 200 |
| Age group | 86 |
| Gender/Age | 81 |
Rankings (Standard)
| National | |
| Overall | 1626 |
| Gender | 1433 |
| Age group | 617 |
| Gender/Age | 582 |
| Provincial | |
| Overall | 593 |
| Gender | 520 |
| Age group | 218 |
| Gender/Age | 207 |
| Regional | |
| Overall | 207 |
| Gender | 181 |
| Age group | 71 |
| Gender/Age | 68 |
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 | 9 |
| Score | 4 |
| Percent | 44.4 |
| Aor | 1327.3 |
| Dp | -47.2 |
| Prat | 1280.1 |
Performance ()
| Games | 22 |
| Score | 11.5 |
| Percent | 52.3 |
| Aor | 1418.3 |
| Dp | 19.3 |
| Prat | 1437.6 |
Performance (12 months)
| Games | 32 |
| Score | 14.5 |
| Percent | 45.3 |
| Aor | 1499.8 |
| Dp | -39.8 |
| Prat | 1460 |
Performance (History)
| Games | 99 |
| Score | 42 |
| Percent | 42.4 |
| Aor | 1459.3 |
| Dp | -64.4 |
| Prat | 1394.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Rishworth, J (Justin) | 2 | 2 | 0 | South African Open 2025 (Blitz) | Tshwane Chess Club Clash 2025 (Prestige) | Details |
| Overall | 2 | Rademeyer, F (Frederick Paul) | 2 | 2 | 0 | Wanderers Blitz Tournament 2024 | JMC Helpmekaar 2025 (B) | Details |