Player Page

Jacobs, A (Amethyst)
Dob: 2002/05/14 (Adult)
Gender: Male
Chess SA id: 102092137
FIDE id:
Region: Pixley-ka-Seme (NCP)
Citizen: RSA
Title(s):
Last active: 2020/03/01 (1540 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1397.6
Curent Weighted rating1397.6
Curent Weighted performance598.0
Current official/published rating (highest between Raw, WR and WP)1397.6
Current floor (min rating allowed)917.8
Current highest rating achieved1417.8
Current K-factor32
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±125.1
Current Raw change used (final)0.0
Projected new Raw rating1397.6
Projected new Weighed rating1397.6
Projected new Weighted performance598.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1397.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1417.8
Projected new floor917.8
Projected new K-facor32
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1398.7
Curent Weighted rating1398.7
Curent Weighted performance598.3
Current official/published rating (highest between Raw, WR and WP)1398.7
Current floor (min rating allowed)918.5
Current highest rating achieved1418.5
Current K-factor32
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±124.9
Current Raw change used (final)0.0
Projected new Raw rating1398.7
Projected new Weighed rating1398.7
Projected new Weighted performance598.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1398.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1418.5
Projected new floor918.5
Projected new K-facor32
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
17 NC Open 2020 (B) 2020/02/28 2020/03/01 Frances Baard (NCF) Standard 120 1.00 5 5 3.0 1416.2 1416.3 Analysis
16 Kimberley Chess Club Christmas Open 2019 (B) 2019/12/06 2019/12/07 Frances Baard (NCF) Standard 60 0.83 5 5 3.0 1417.8 1418.5 Analysis
15 Kimberley Chess Club Schools` Open 2019 (U17+U19 Open) 2019/07/20 2019/07/20 Frances Baard (NCF) Standard 60 0.83 5 5 4.0 1379.0 1386.5 Analysis
14 2019 SA Schools Winter Games (U18 Boys) 2019/07/01 2019/07/04 Ethekwini (KED) Standard 90 0.94 7 7 4.0 1379.0 1386.5 Analysis
13 South African Schools Individuals Chess Championships 2019 (U17+U19 Open) 2019/06/18 2019/06/21 Frances Baard (NCF) Standard 60 0.83 7 7 3.5 1218.0 1225.6 Analysis
12 Northern Cape Trails 2019 (U18 Boys) 2019/06/13 2019/06/13 ZF Mgcawu (NZF) Standard 62 0.84 5 5 4.5 1218.0 1225.6 Analysis
11 Inter Regional Chess Championship 2019 (U18) 2019/05/10 2019/05/11 Mangaung (FMB) Standard 60 0.83 5 5 4.0 1158.9 1163.2 Analysis
10 Pixley ka Seme Schools Trials 2019 (U18 Boys) 2019/03/09 2019/03/09 Pixley-ka-Seme (NCP) Standard 60 0.83 5 5 2.5 1152.6 1152.8 Analysis
9 Frances Baard Schools Open Tournament 2019 (U17+Open Boys) 2019/01/29 2019/01/29 Frances Baard (NCF) Standard 60 0.83 5 5 3.0 1131.7 1126.0 Analysis
8 South African Junior Team Championships 2018 (U18C) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 4.0 1123.7 1123.2 Analysis
7 Northern Cape Closed Chess Championships 2018 (U18 Open) 2018/08/31 2018/09/01 Frances Baard (NCF) Standard 92 0.94 5 5 1.5 1163.2 1165.2 Analysis
6 Frances Baard Schools Open (U17+U19 Boys) 2018/08/17 2018/08/18 Frances Baard (NCF) Standard 60 0.83 6 6 4.0 1136.3 1134.4 Analysis
5 LDA Open Tournament 2018 (A) 2018/07/21 2018/07/21 Pixley-ka-Seme (NCP) Standard 60 0.83 5 5 3.5 1136.0 1133.6 Analysis
4 NC Provincial Schools Eliminations 2018 (U18 Open) 2018/06/23 2018/06/23 Frances Baard (NCF) Standard 60 0.83 5 5 3.5 1077.9 1059.2 Analysis
3 Inter Regional 2018 (U18 Team) 2018/05/04 2018/05/05 Frances Baard (NCF) Standard 60 0.83 5 4 1.0 1102.1 1083.6 Analysis
2 Pixley Schools District Eliminations 2018 (U17+U19) 2018/04/14 2018/04/14 Pixley-ka-Seme (NCP) Standard 60 0.83 5 5 3.0 1164.5 1157.2 Analysis
1 Pixley ka Seme Open 2018 (U18-Adult) 2018/02/10 2018/02/10 Pixley-ka-Seme (NCP) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Standard All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 103 57 10 36 62.0 60.2 86.7 1173.0 1259.6
White 54 29 5 20 31.5 58.3 70.8 1203.4 1274.2
Black 49 28 5 16 30.5 62.2 104.1 1139.5 1243.5
Standard All 103 57 10 36 62.0 60.2 86.7 1173.0 1259.6
White 54 29 5 20 31.5 58.3 70.8 1203.4 1274.2
Black 49 28 5 16 30.5 62.2 104.1 1139.5 1243.5
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 102089463 Links, B (Bradley) 5 3.0 2 2 1 60.0 1144.2 85.0 1229.2 View list
2 102091433 Oliphant, D (Deaquin) 5 2.0 2 0 3 40.0 1145.1 -85.0 1060.1 View list
3 102079355 Michael, X (Xolile) 3 2.0 2 0 1 66.7 1296.6 141.7 1438.2 View list
4 101066232 Valashia, A (Amogelang) 3 1.5 0 3 0 50.0 1325.3 0.0 1325.3 View list
5 1020105361 Sagrys, M (Miguel) 3 1.0 1 0 2 33.3 1296.6 -141.7 1154.9 View list
6 101055877 Dyariwe, B (Buhle) 2 2.0 2 0 0 100.0 1379.0 425.0 1804.0 View list
7 103076891 Crutse, K (Kgothatso) 2 2.0 2 0 0 100.0 1379.0 425.0 1804.0 View list
8 103072610 Greyling, S (Stefan) 2 2.0 2 0 0 100.0 1379.0 425.0 1804.0 View list
9 1030097479 Halter, P (Prince) 2 2.0 2 0 0 100.0 1379.0 425.0 1804.0 View list
10 1010116501 Kekane, F (France) 2 2.0 2 0 0 100.0 1379.0 425.0 1804.0 View list
11 171017443 Lebenya, MJ (Masilo) 2 2.0 2 0 0 100.0 1417.0 425.0 1842.0 View list
12 103048251 Nkambule, N (Ntokozo) 2 2.0 2 0 0 100.0 1379.0 425.0 1804.0 View list
13 201076062 Ntozini, T (Thandokazi) 2 2.0 2 0 0 100.0 1168.0 425.0 1593.0 View list
14 201076067 Van Reenen, P (Phoeboe) 2 2.0 2 0 0 100.0 1150.3 425.0 1575.3 View list
15 1010100709 Applegreen, T (Thuto) 2 1.5 1 1 0 75.0 1148.0 212.5 1360.5 View list
16 1020099012 Kamvelihle, Z (Zumani) 2 1.0 1 0 1 50.0 1132.7 0.0 1132.7 View list
17 201076066 Saunders, L (Lihandri) 2 1.0 1 0 1 50.0 1150.3 0.0 1150.3 View list
18 102082750 Sefodi, T (Tshepiso) 2 1.0 0 2 0 50.0 1379.0 0.0 1379.0 View list
19 101050300 Botes, A (Armand) 2 0.5 0 1 1 25.0 1149.8 -212.5 937.3 View list
20 103089461 Cedras, C (Crusadian) 2 0.5 0 1 1 25.0 1142.2 -212.5 929.7 View list