PLAYER PAGE
Jamie Petersen
1090118656Ekurhuleni (GE)Personal
Main rating
| Rating | 1434.1 |
| K-factor | 32 |
| Floor | 934.1 |
| Highest | 1434.1 (2026-09-01) |
| Min/Max +/- allowed | 119 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.38 |
| SWe | -0.18 |
| Temp +/- | -5.7 |
| Penalties | 0 |
| Weight perform | 1412.8 |
| Final +/- | -5.7 |
| New Rating () | |
| Rating | 1428.4 |
| K-factor | 32 |
| Floor | 934.1 |
| Highest | 1434.1 (2026-09-01) |
| Min/Max +/- allowed | 118.8 |
Standard rating
| Rating | 1443.9 |
| K-factor | 32 |
| Floor | 943.9 |
| Highest | 1443.9 (2026-09-01) |
| Min/Max +/- allowed | 117.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1439.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1443.9 |
| K-factor | 32 |
| Floor | 943.9 |
| Highest | 1443.9 (2026-09-01) |
| Min/Max +/- allowed | 117.1 |
Rapid rating
| Rating | 1162.2 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 2.17 |
| SWe | 0.83 |
| Temp +/- | 30 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | +30 |
| New Rating () | |
| Rating | 1192.1 |
| 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 | Ekurhuleni Rapid 2026 (B) | Rapid | 2026-08-29 | 2026-08-29 | Ekurhuleni (GE) | 5 | 1434.1 | 5 | 3 | 1375 | -5.7 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Ekurhuleni 3rd Trials 2026 (C) | Standard | 2026-07-25 | 2026-07-25 | Ekurhuleni (GE) | 5 | 1434.1 | 0 | 0 | 500 | 0 | Details |
| 2 | 2026 JMCA Open Chess Tournament (C) | Standard | 2026-08-15 | 2026-08-15 | Tshwane (GTP) | 5 | 1434.1 | 3 | 0 | 947.4 | -39.6 | Details |
| 3 | Ekurhuleni 3rd Standard Tournament 2026 (C) | Standard | 2026-08-08 | 2026-08-08 | Ekurhuleni (GE) | 5 | 1434.1 | 5 | 3 | 1514.6 | 21.9 | Details |
| 4 | 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 |
| 5 | Ekurhuleni 2nd Trial 2026 (C) | Standard | 2026-06-20 | 2026-06-20 | Ekurhuleni (GE) | 5 | 1187 | 5 | 4 | 1671.2 | 83.4 | Details |
| 6 | Ekurhuleni 1st Trial 2026 (C) | Standard | 2026-04-11 | 2026-04-11 | Ekurhuleni (GE) | 5 | 1175.8 | 3 | 1 | 1312.5 | 11.2 | Details |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | 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 |
| 11 | Ekurhuleni Grand Prix 2019 (C) | Standard | 2019-09-14 | 2019-09-14 | Ekurhuleni (GE) | 5 | 1183.7 | 5 | 2 | 1118.3 | -7.1 | Details |
| 12 | 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 | 38 |
| Wins | 18 |
| Draws | 0 |
| Losses | 20 |
| White | 20 |
| Black | 18 |
| White wins | 11 |
| Black wins | 7 |
| Score | 18 |
| Percent | 47.4 |
| Dp | -22.4 |
| AOR | 1391.6 |
| Performance | 1369.2 |
Game statistics (History)
| Games | 58 |
| Wins | 26 |
| Draws | 1 |
| Losses | 31 |
| White | 30 |
| Black | 28 |
| White wins | 17 |
| Black wins | 9 |
| Score | 26.5 |
| Percent | 45.7 |
| Dp | -36.6 |
| AOR | 1332.6 |
| Performance | 1295.9 |
Rankings (Main)
| National | |
| Overall | 2958 |
| Gender | 2529 |
| Age group | 417 |
| Gender/Age | 352 |
| Provincial | |
| Overall | 1032 |
| Gender | 877 |
| Age group | 168 |
| Gender/Age | 137 |
| Regional | |
| Overall | 160 |
| Gender | 134 |
| Age group | 29 |
| Gender/Age | 24 |
Rankings (Standard)
| National | |
| Overall | 2487 |
| Gender | 2101 |
| Age group | 344 |
| Gender/Age | 285 |
| Provincial | |
| Overall | 902 |
| Gender | 763 |
| Age group | 138 |
| Gender/Age | 110 |
| Regional | |
| Overall | 133 |
| Gender | 110 |
| Age group | 23 |
| Gender/Age | 18 |
Rankings (Rapid)
| National | |
| Overall | 5538 |
| Gender | 4203 |
| Age group | 716 |
| Gender/Age | 545 |
| Provincial | |
| Overall | 1338 |
| Gender | 1019 |
| Age group | 201 |
| Gender/Age | 150 |
| Regional | |
| Overall | 564 |
| Gender | 407 |
| Age group | 74 |
| Gender/Age | 54 |
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 | 38 |
| Score | 18 |
| Percent | 47.4 |
| Aor | 1391.6 |
| Dp | -22.4 |
| Prat | 1369.2 |
Performance (12 months)
| Games | 38 |
| Score | 18 |
| Percent | 47.4 |
| Aor | 1391.6 |
| Dp | -22.4 |
| Prat | 1369.2 |
Performance (History)
| Games | 58 |
| Score | 26.5 |
| Percent | 45.7 |
| Aor | 1332.6 |
| Dp | -36.6 |
| Prat | 1295.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Nolan, C (Christopher) | 3 | 1 | 2 | East Rand Chess Club Open 2026 (C) | Ekurhuleni 3rd Standard Tournament 2026 (C) | Details |
| Overall | 2 | Keet, RM (Robert Michael) | 2 | 1 | 1 | East Rand Chess Club Open 2026 (C) | Ekurhuleni 2nd Trial 2026 (C) | Details |
| Standard | 1 | Nolan, C (Christopher) | 2 | 1 | 1 | Ekurhuleni 1st Trial 2026 (C) | Ekurhuleni 3rd Standard Tournament 2026 (C) | Details |