PLAYER PAGE
Amethyst Jacobs
102092137Pixley-ka-Seme (NCP)Personal
Main rating
| Rating | 1448.7 |
| K-factor | 32 |
| Floor | 948.7 |
| Highest | 1448.7 (2025-06-01) |
| Min/Max +/- allowed | 116 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 867.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1448.7 |
| K-factor | 32 |
| Floor | 948.7 |
| Highest | 1448.7 (2025-06-01) |
| Min/Max +/- allowed | 116.4 |
Standard rating
| Rating | 1460.1 |
| K-factor | 32 |
| Floor | 960.1 |
| Highest | 1460.1 (2025-06-01) |
| Min/Max +/- allowed | 114.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 867.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1460.1 |
| K-factor | 32 |
| Floor | 960.1 |
| Highest | 1460.1 (2025-06-01) |
| Min/Max +/- allowed | 114.5 |
Rapid 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 |
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 | 2025 Hopetown Schools Chess Tournament (U15-U19) | Standard | 2025-05-17 | 2025-05-17 | Pixley-ka-Seme (NCP) | 5 | 1397.6 | 5 | 4.5 | 1713.3 | 0 | Details |
| 2 | NC Open 2020 (B) | Classical | 2020-02-28 | 2020-03-01 | Frances Baard (NCF) | 5 | 1416.2 | 5 | 3 | 1323.7 | 0 | Details |
| 3 | Kimberley Chess Club Christmas Open 2019 (B) | Standard | 2019-12-06 | 2019-12-07 | Frances Baard (NCF) | 5 | 1417.8 | 5 | 3 | 1413.9 | 0 | Details |
| 4 | Kimberley Chess Club Schools` Open 2019 (U17+U19 Open) | Standard | 2019-07-20 | 2019-07-20 | Frances Baard (NCF) | 5 | 1379 | 5 | 4 | 1413.6 | 0 | Details |
| 5 | 2019 SA Schools Winter Games (U18 Boys) | Standard | 2019-07-01 | 2019-07-04 | Ethekwini (KED) | 7 | 1379 | 7 | 4 | 1441.2 | 0 | Details |
| 6 | South African Schools Individuals Chess Championships 2019 (U17+U19 Open) | Standard | 2019-06-18 | 2019-06-21 | Frances Baard (NCF) | 7 | 1218 | 7 | 3.5 | 1379.1 | 0 | Details |
| 7 | Northern Cape Trails 2019 (U18 Boys) | Standard | 2019-06-13 | 2019-06-13 | ZF Mgcawu (NZF) | 5 | 1218 | 5 | 4.5 | 1555.4 | 0 | Details |
| 8 | Inter Regional Chess Championship 2019 (U18) | Standard | 2019-05-10 | 2019-05-11 | Mangaung (FMB) | 5 | 1158.9 | 5 | 4 | 1420.7 | 0 | Details |
| 9 | Pixley ka Seme Schools Trials 2019 (U18 Boys) | Standard | 2019-03-09 | 2019-03-09 | Pixley-ka-Seme (NCP) | 5 | 1152.6 | 5 | 2.5 | 1176.7 | 0 | Details |
| 10 | Frances Baard Schools Open Tournament 2019 (U17+Open Boys) | Standard | 2019-01-29 | 2019-01-29 | Frances Baard (NCF) | 5 | 1131.7 | 5 | 3 | 1246.2 | 0 | Details |
| 11 | South African Junior Team Championships 2018 (U18C) | Classical | 2018-12-16 | 2018-12-20 | 4 Knights (4K) | 7 | 1123.7 | 7 | 4 | 1153.5 | 0 | Details |
| 12 | Northern Cape Closed Chess Championships 2018 (U18 Open) | Standard | 2018-08-31 | 2018-09-01 | Frances Baard (NCF) | 5 | 1163.2 | 5 | 1.5 | 979.1 | 0 | Details |
| 13 | Frances Baard Schools Open (U17+U19 Boys) | Standard | 2018-08-17 | 2018-08-18 | Frances Baard (NCF) | 6 | 1136.3 | 6 | 4 | 1262.8 | 0 | Details |
| 14 | LDA Open Tournament 2018 (A) | Standard | 2018-07-21 | 2018-07-21 | Pixley-ka-Seme (NCP) | 5 | 1136 | 5 | 3.5 | 1109.1 | 0 | Details |
| 15 | NC Provincial Schools Eliminations 2018 (U18 Open) | Standard | 2018-06-23 | 2018-06-23 | Frances Baard (NCF) | 5 | 1077.9 | 5 | 3.5 | 1382.8 | 0 | Details |
| 16 | Inter Regional 2018 (U18 Team) | Standard | 2018-05-04 | 2018-05-05 | Frances Baard (NCF) | 5 | 1102.1 | 4 | 1 | 929.1 | 0 | Details |
| 17 | Pixley Schools District Eliminations 2018 (U17+U19) | Standard | 2018-04-14 | 2018-04-14 | Pixley-ka-Seme (NCP) | 5 | 1164.5 | 5 | 3 | 687.6 | 0 | Details |
| 18 | Pixley ka Seme Open 2018 (U18-Adult) | Standard | 2018-02-10 | 2018-02-10 | Pixley-ka-Seme (NCP) | 5 | 1200 | 5 | 2 | 986.6 | 0 | Details |
| 19 | Kimberley Chess Club Open Tournament - 01 July 2017 (B) | Standard | 2017-07-01 | 2017-07-01 | Northern Cape (NC) | 5 | 0 | 0 | 0 | 0 | 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 | 96 |
| Wins | 54 |
| Draws | 9 |
| Losses | 33 |
| White | 49 |
| Black | 47 |
| White wins | 27 |
| Black wins | 27 |
| Score | 58.5 |
| Percent | 60.9 |
| Dp | 93 |
| AOR | 1169 |
| Performance | 1262 |
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 | 5 |
| Score | 4.5 |
| Percent | 90 |
| Aor | 1373.3 |
| Dp | 340 |
| Prat | 1713.3 |
Performance (History)
| Games | 96 |
| Score | 58.5 |
| Percent | 60.9 |
| Aor | 1169 |
| Dp | 93 |
| Prat | 1262 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Links, B (Bradley) | 5 | 2 | 3 | NC Provincial Schools Eliminations 2018 (U18 Open) | South African Schools Individuals Chess Championships 2019 (U17+U19 Open) | Details |
| Overall | 2 | Oliphant, D (Deaquin) | 5 | 5 | 0 | Pixley ka Seme Open 2018 (U18-Adult) | Inter Regional Chess Championship 2019 (U18) | Details |
| Overall | 3 | Lebenya, MJ (Masilo John) | 2 | 0 | 2 | Kimberley Chess Club Christmas Open 2019 (B) | NC Open 2020 (B) | Details |
| Overall | 4 | Botes, A (Armand) | 2 | 1 | 1 | Frances Baard Schools Open (U17+U19 Boys) | Northern Cape Closed Chess Championships 2018 (U18 Open) | Details |
| Overall | 5 | Jacobs, B (Breyton) | 2 | 2 | 0 | Pixley ka Seme Schools Trials 2019 (U18 Boys) | 2025 Hopetown Schools Chess Tournament (U15-U19) | Details |
| Standard | 1 | Links, B (Bradley) | 5 | 2 | 3 | NC Provincial Schools Eliminations 2018 (U18 Open) | South African Schools Individuals Chess Championships 2019 (U17+U19 Open) | Details |
| Standard | 2 | Oliphant, D (Deaquin) | 5 | 5 | 0 | Pixley ka Seme Open 2018 (U18-Adult) | Inter Regional Chess Championship 2019 (U18) | Details |
| Standard | 3 | Jacobs, B (Breyton) | 2 | 2 | 0 | Pixley ka Seme Schools Trials 2019 (U18 Boys) | 2025 Hopetown Schools Chess Tournament (U15-U19) | Details |
| Standard | 4 | Botes, A (Armand) | 2 | 1 | 1 | Frances Baard Schools Open (U17+U19 Boys) | Northern Cape Closed Chess Championships 2018 (U18 Open) | Details |
| Standard | 5 | Valashia, A (Amogelang) | 2 | 2 | 0 | South African Schools Individuals Chess Championships 2019 (U17+U19 Open) | 2019 SA Schools Winter Games (U18 Boys) | Details |