PLAYER PAGE
Jamie Petersen
1090118656Ekurhuleni (GE)Personal
Main rating
| Rating | 1298.6 |
| K-factor | 36 |
| Floor | 798.6 |
| Highest | 1298.6 (2026-07-01) |
| Min/Max +/- allowed | 144 |
| Rating Change () | |
| Games | 8 |
| Score | 5 |
| We | 3.24 |
| SWe | 1.76 |
| Temp +/- | 63.3 |
| Penalties | 0 |
| Weight perform | 1383.3 |
| Final +/- | +84.6 |
| New Rating () | |
| Rating | 1383.3 |
| K-factor | 36 |
| Floor | 883.3 |
| Highest | 1383.3 (2026-07-01) |
| Min/Max +/- allowed | 127.7 |
Standard rating
| Rating | 1291 |
| K-factor | 36 |
| Floor | 791 |
| Highest | 1291 (2026-07-01) |
| Min/Max +/- allowed | 145.6 |
| Rating Change () | |
| Games | 8 |
| Score | 5 |
| We | 3.45 |
| SWe | 1.55 |
| Temp +/- | 56 |
| Penalties | 0 |
| Weight perform | 1341.4 |
| Final +/- | +56 |
| New Rating () | |
| Rating | 1347 |
| K-factor | 36 |
| Floor | 847 |
| Highest | 1347 (2026-07-01) |
| Min/Max +/- allowed | 134.5 |
Rapid rating
| Rating | 1162.2 |
| 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 | 1162.2 |
| 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 | South African Open Championship 2026 (Intermediate) | Classical | 2026-06-28 | 2026-07-05 | Cape Town (WCT) | 9 | 1298.6 | 8 | 5 | 1486.4 | 63.3 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Ekurhuleni 2nd Trial 2026 (C) | Standard | 2026-06-20 | 2026-06-20 | Ekurhuleni (GE) | 5 | 1187 | 5 | 4 | 1671.2 | 83.4 | Details |
| 2 | Ekurhuleni 1st Trial 2026 (C) | Standard | 2026-04-11 | 2026-04-11 | Ekurhuleni (GE) | 5 | 1175.8 | 3 | 1 | 1312.5 | 11.2 | Details |
| 3 | Chess Power House Freedom Day Open 2026 (A) | Standard | 2026-04-27 | 2026-04-27 | Ekurhuleni (GE) | 5 | 1193.4 | 4 | 0 | 1098.6 | -17.6 | Details |
| 4 | East Rand Chess Club Open 2026 (C) | Rapid | 2026-03-14 | 2026-03-14 | Ekurhuleni (GE) | 5 | 1188.9 | 5 | 2 | 1232.2 | 4.4 | Details |
| 5 | Ekurhuleni North Schools Teams 2025 (U17 Open) | Standard | 2025-08-16 | 2025-08-16 | Ekurhuleni (GE) | 5 | 1169.8 | 5 | 3 | 1410.1 | 24.1 | Details |
| 6 | Edenvale Germiston Cluster Teams 2025 (High School) | Rapid | 2025-07-25 | 2025-07-25 | Ekurhuleni (GE) | 5 | 1169.8 | 5 | 1 | 989.7 | -13.4 | Details |
| 7 | Ekurhuleni Grand Prix 2019 (C) | Standard | 2019-09-14 | 2019-09-14 | Ekurhuleni (GE) | 5 | 1183.7 | 5 | 2 | 1118.3 | -7.1 | Details |
| 8 | Springs Open 2019 (C) | Standard | 2019-08-31 | 2019-08-31 | Ekurhuleni (GE) | 5 | 1200 | 5 | 2.5 | 1108.8 | -8.1 | 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 | 25 |
| Wins | 12 |
| Draws | 0 |
| Losses | 13 |
| White | 14 |
| Black | 11 |
| White wins | 7 |
| Black wins | 5 |
| Score | 12 |
| Percent | 48 |
| Dp | -17 |
| AOR | 1406.6 |
| Performance | 1389.6 |
Game statistics (History)
| Games | 45 |
| Wins | 20 |
| Draws | 1 |
| Losses | 24 |
| White | 24 |
| Black | 21 |
| White wins | 13 |
| Black wins | 7 |
| Score | 20.5 |
| Percent | 45.6 |
| Dp | -37.8 |
| AOR | 1323.9 |
| Performance | 1286.1 |
Rankings (Main)
| National | |
| Overall | 6539 |
| Gender | 5355 |
| Age group | 1005 |
| Gender/Age | 802 |
| Provincial | |
| Overall | 2213 |
| Gender | 1818 |
| Age group | 386 |
| Gender/Age | 309 |
| Regional | |
| Overall | 458 |
| Gender | 348 |
| Age group | 91 |
| Gender/Age | 67 |
Rankings (Standard)
| National | |
| Overall | 6035 |
| Gender | 4879 |
| Age group | 972 |
| Gender/Age | 780 |
| Provincial | |
| Overall | 2153 |
| Gender | 1748 |
| Age group | 385 |
| Gender/Age | 308 |
| Regional | |
| Overall | 402 |
| Gender | 301 |
| Age group | 83 |
| Gender/Age | 61 |
Rankings (Rapid)
| National | |
| Overall | 5621 |
| Gender | 4250 |
| Age group | 703 |
| Gender/Age | 534 |
| Provincial | |
| Overall | 1206 |
| Gender | 915 |
| Age group | 159 |
| Gender/Age | 114 |
| Regional | |
| Overall | 469 |
| Gender | 334 |
| Age group | 53 |
| Gender/Age | 34 |
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 | 8 |
| Score | 5 |
| Percent | 62.5 |
| Aor | 1380.1 |
| Dp | 106.2 |
| Prat | 1486.3 |
Performance ()
| Games | 25 |
| Score | 12 |
| Percent | 48 |
| Aor | 1406.6 |
| Dp | -17 |
| Prat | 1389.6 |
Performance (12 months)
| Games | 30 |
| Score | 15 |
| Percent | 50 |
| Aor | 1393 |
| Dp | 0 |
| Prat | 1393 |
Performance (History)
| Games | 45 |
| Score | 20.5 |
| Percent | 45.6 |
| Aor | 1323.9 |
| Dp | -37.8 |
| Prat | 1286.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Nolan, C (Christopher) | 2 | 1 | 1 | East Rand Chess Club Open 2026 (C) | Ekurhuleni 1st Trial 2026 (C) | Details |
| Overall | 2 | Keet, R (Robert) | 2 | 1 | 1 | East Rand Chess Club Open 2026 (C) | Ekurhuleni 2nd Trial 2026 (C) | Details |