PLAYER PAGE
Peter-John Jacobs
192013433Cape Town (WCT)Personal
Main rating
| Rating | 1595.3 |
| K-factor | 28 |
| Floor | 1102.1 |
| Highest | 1624.1 (2019-01-01) |
| Min/Max +/- allowed | 91 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 822.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1595.3 |
| K-factor | 28 |
| Floor | 1102.1 |
| Highest | 1624.1 (2019-01-01) |
| Min/Max +/- allowed | 90.6 |
Standard rating
| Rating | 1625.8 |
| K-factor | 28 |
| Floor | 1137.5 |
| Highest | 1637.5 (2024-02-01) |
| Min/Max +/- allowed | 88.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 822.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1625.8 |
| K-factor | 28 |
| Floor | 1137.5 |
| Highest | 1637.5 (2024-02-01) |
| Min/Max +/- allowed | 88.9 |
Rapid rating
| Rating | 1442.9 |
| K-factor | 32 |
| Floor | 942.9 |
| Highest | 1573.6 (2019-03-01) |
| Min/Max +/- allowed | 97.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1442.9 |
| K-factor | 32 |
| Floor | 942.9 |
| Highest | 1573.6 (2019-03-01) |
| Min/Max +/- allowed | 97.4 |
Blitz rating
| Rating | 1456.7 |
| K-factor | 32 |
| Floor | 956.9 |
| Highest | 1456.9 (2024-02-01) |
| Min/Max +/- allowed | 115 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1456.7 |
| K-factor | 32 |
| Floor | 956.9 |
| Highest | 1456.9 (2024-02-01) |
| Min/Max +/- allowed | 115 |
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 | Cape Town Chess Federation Club League 2025 (B) | Classical | 2025-07-26 | 2025-09-27 | Cape Town (WCT) | 11 | 1595.3 | 0 | 0 | 0 | 0 | Details |
| 2 | CT League 2024 (A) | Classical | 2024-07-20 | 2024-09-07 | Cape Town (WCT) | 11 | 1599.9 | 4 | 1.5 | 1442.9 | 0 | Details |
| 3 | CT League 2024 (C) | Classical | 2024-07-20 | 2024-09-07 | Cape Town (WCT) | 11 | 1599.9 | 1 | 1 | 1790.3 | 0 | Details |
| 4 | Steinitz Club Team Blitz Championship 2024 | Blitz | 2024-02-15 | 2024-02-15 | Cape Town (WCT) | 7 | 1602.1 | 4 | 1 | 1484 | 0 | Details |
| 5 | WP Club League 2023 (A) | Classical | 2023-07-29 | 2023-09-09 | Cape Town (WCT) | 11 | 1587.4 | 3 | 2 | 1732.3 | 0 | Details |
| 6 | South African Open 2022 (Championship) | Classical | 2022-07-09 | 2022-07-17 | Cape Town (WCT) | 11 | 1489.5 | 8 | 4 | 1818.5 | 0 | Details |
| 7 | Western Cape Club Championships 2021 (B) | Standard | 2021-10-15 | 2021-10-17 | Eden (WEG) | 6 | 1499.8 | 4 | 2 | 1436.6 | 0 | Details |
| 8 | 2019 Western Cape Club Championship (A+B) | Standard | 2019-10-25 | 2019-10-27 | Overberg (WOS) | 6 | 1466.6 | 5 | 3 | 1702.2 | 0 | Details |
| 9 | 2019 Western Province League (Premier) | Classical | 2019-07-27 | 2019-09-07 | Cape Town (WCT) | 11 | 1500.5 | 5 | 2.5 | 1434.7 | 0 | Details |
| 10 | 2019 Western Province League (B) | Classical | 2019-07-27 | 2019-09-07 | Cape Town (WCT) | 11 | 1500.5 | 2 | 0.5 | 1395.4 | 0 | Details |
| 11 | 2019 National Club Chess Championships (B) | Classical | 2019-09-27 | 2019-09-29 | Cape Town (WCT) | 6 | 1500.5 | 5 | 2.5 | 1400.7 | 0 | Details |
| 12 | Blackjacks Club Champs 2019 | Standard | 2019-07-04 | 2019-07-07 | Cape Town (WCT) | 7 | 1513.8 | 6 | 3.5 | 1431.8 | 0 | Details |
| 13 | 2019 Groote Schuur High School Blitz | Blitz | 2019-06-14 | 2019-06-14 | Cape Town (WCT) | 9 | 1510.9 | 9 | 6 | 1559 | 0 | Details |
| 14 | 2019 Western Province Open (Prestige) | Standard | 2019-05-25 | 2019-05-26 | Cape Town (WCT) | 6 | 1500.6 | 6 | 3.5 | 1552.5 | 0 | Details |
| 15 | 2019 Cape Town Classic Chess Festival (Rapid) | Rapid | 2019-03-30 | 2019-03-30 | Cape Town (WCT) | 7 | 1494 | 7 | 3.5 | 1555.5 | 0 | Details |
| 16 | 2019 Cape Town Classic Chess Festival (Blitz) | Blitz | 2019-03-29 | 2019-03-29 | Cape Town (WCT) | 9 | 1494 | 0 | 0 | 0 | 0 | Details |
| 17 | Cape of Good Hope Open 2019 (Prestige) | Standard | 2019-01-25 | 2019-01-28 | Cape Town (WCT) | 6 | 1463.4 | 5 | 3 | 1643.4 | 0 | Details |
| 18 | 2018 Western Province League (Premier) | Classical | 2018-08-04 | 2018-09-15 | Cape Town (WCT) | 11 | 1415.9 | 6 | 3.5 | 1614.9 | 0 | Details |
| 19 | South African Open 2015 (B) | Classical | 2015-07-03 | 2015-07-11 | Western Province (WP) | 11 | 1322 | 10 | 8 | 1564 | 0 | Details |
| 20 | Cape Of Good Hope Open 2013 (B-Section) | Standard | 2013-01-26 | 2013-01-27 | Western Province (WP) | 6 | 1297 | 5 | 4 | 1407 | 0 | Details |
| 21 | Wp League 2012 (B Division) | Standard | 2012-08-14 | 2012-10-20 | Western Province (WP) | 11 | 1285 | 5 | 2.5 | 1348 | 0 | Details |
| 22 | Western Province Closed 2010 (Group E) | Standard | 2010-11-01 | 2010-11-01 | Western Province (WP) | 7 | 1241 | 7 | 5.5 | 1435 | 0 | Details |
| 23 | South African Junior Chess Championships 2009 (U 18 Boys) | Standard | 2009-12-06 | 2009-12-10 | Western Province (WP) | 9 | 1236 | 9 | 3.5 | 1250 | 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 | 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 (History)
| Games | 80 |
| Wins | 33 |
| Draws | 20 |
| Losses | 27 |
| White | 38 |
| Black | 42 |
| White wins | 17 |
| Black wins | 16 |
| Score | 43 |
| Percent | 53.8 |
| Dp | 31.9 |
| AOR | 1533.1 |
| Performance | 1565 |
Rankings (Main)
| 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 (Standard)
| 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 (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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (History)
| Games | 80 |
| Score | 43 |
| Percent | 53.8 |
| Aor | 1533.1 |
| Dp | 31.9 |
| Prat | 1565 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Willenberg, KD (Kurt Dale) | 3 | 2 | 1 | 2018 Western Province League (Premier) | Western Cape Club Championships 2021 (B) | Details |
| Overall | 2 | Bouah, D (Denise) | 2 | 2 | 0 | 2018 Western Province League (Premier) | Western Cape Club Championships 2021 (B) | Details |
| Overall | 3 | Steenkamp, W (Wessel) | 2 | 1 | 1 | 2019 Western Province League (B) | 2019 Western Province League (Premier) | Details |
| Overall | 4 | Bhawoodien, SH (Shabier Husain) | 2 | 1 | 1 | 2019 Groote Schuur High School Blitz | 2019 Western Cape Club Championship (A+B) | Details |
| Overall | 5 | Willenberg, SC (Shane Clayton) | 2 | 0 | 2 | 2019 Western Province League (B) | South African Open 2022 (Championship) | Details |
| Standard | 1 | Willenberg, KD (Kurt Dale) | 3 | 2 | 1 | 2018 Western Province League (Premier) | Western Cape Club Championships 2021 (B) | Details |
| Standard | 2 | Steenkamp, W (Wessel) | 2 | 1 | 1 | 2019 Western Province League (B) | 2019 Western Province League (Premier) | Details |
| Standard | 3 | Willenberg, SC (Shane Clayton) | 2 | 0 | 2 | 2019 Western Province League (B) | South African Open 2022 (Championship) | Details |
| Standard | 4 | Bouah, D (Denise) | 2 | 2 | 0 | 2018 Western Province League (Premier) | Western Cape Club Championships 2021 (B) | Details |