Player Page

Pietersen, J (Jamien)
Dob: 2004/02/04 (Adult)
Gender: Male
Chess SA id: 104086400
FIDE id:
Region: ZF Mgcawu (NZF)
Citizen: RSA
Title(s):
Last active: 2021/09/04 (963 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 rating1359.4
Curent Weighted rating1359.4
Curent Weighted performance845.6
Current official/published rating (highest between Raw, WR and WP)1359.4
Current floor (min rating allowed)865.7
Current highest rating achieved1365.7
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)±132.1
Current Raw change used (final)0.0
Projected new Raw rating1359.4
Projected new Weighed rating1359.4
Projected new Weighted performance845.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1359.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1365.7
Projected new floor865.7
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 rating1364.9
Curent Weighted rating1364.9
Curent Weighted performance845.1
Current official/published rating (highest between Raw, WR and WP)1364.9
Current floor (min rating allowed)873.5
Current highest rating achieved1373.5
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)±131.1
Current Raw change used (final)0.0
Projected new Raw rating1364.9
Projected new Weighed rating1364.9
Projected new Weighted performance845.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1364.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1373.5
Projected new floor873.5
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 rating530.4
Curent Weighted rating530.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)530.4
Current floor (min rating allowed)500.0
Current highest rating achieved530.4
Current K-factor40
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)±430.5
Current Raw change used (final)0.0
Projected new Raw rating530.4
Projected new Weighed rating530.4
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)530.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating530.4
Projected new floor500.0
Projected new K-facor40
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 rating530.4
Curent Weighted rating530.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)530.4
Current floor (min rating allowed)500.0
Current highest rating achieved530.4
Current K-factor40
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)±430.5
Current Raw change used (final)0.0
Projected new Raw rating530.4
Projected new Weighed rating530.4
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)530.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating530.4
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
17 ZFM Chess Championships 2021 (A) 2021/09/04 2021/09/04 ZF Mgcawu (NZF) Standard 62 0.84 5 5 4.0 1322.5 1321.7 Analysis
16 Pixley Chess Open 2021 (U18-Open) 2021/05/15 2021/05/15 Pixley-ka-Seme (NCP) Standard 62 0.84 5 2 0.0 1365.7 1373.5 Analysis
15 ZFM Freedom Day Tournament 2021 2021/04/27 2021/04/27 ZF Mgcawu (NZF) Standard 62 0.84 5 4 4.0 1318.5 1317.7 Analysis
14 Northern Cape Closed Chess Championships 2019 (U10) 2019/08/30 2019/09/01 ZF Mgcawu (NZF) Standard 92 0.94 5 5 4.0 1255.7 1262.3 Analysis
13 2019 SA Schools Winter Games (U15 Boys) 2019/07/01 2019/07/04 Ethekwini (KED) Standard 90 0.94 7 7 3.0 1263.8 1270.2 Analysis
12 Northern Cape Trails 2019 (U15 Boys) 2019/06/13 2019/06/13 ZF Mgcawu (NZF) Standard 62 0.84 5 5 4.0 1231.7 1232.0 Analysis
11 ZFM School Trials 2019 (U15) 2019/04/27 2019/04/27 ZF Mgcawu (NZF) Standard 60 0.83 5 5 3.0 1220.6 1217.6 Analysis
10 South African Junior Team Championships 2018 (U16C) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 5.0 1210.5 1216.5 Analysis
9 Northern Cape Closed Chess Championships 2018 (U16 Open) 2018/08/31 2018/09/01 Frances Baard (NCF) Standard 92 0.94 5 5 2.5 1202.7 1205.7 Analysis
8 King`s Guard Women`s Day Open Chess Tournament 2018 (A) 2018/08/04 2018/08/04 ZF Mgcawu (NZF) Standard 60 0.83 5 5 3.0 1221.8 1234.1 Analysis
7 ZF MGCAWU Mandela Centenary Open Chess Tournament 2018 (U16) 2018/07/20 2018/07/21 ZF Mgcawu (NZF) Standard 60 0.83 6 6 4.5 1171.4 1176.1 Analysis
6 NC Provincial Schools Eliminations 2018 (U15 Boys) 2018/06/23 2018/06/23 Frances Baard (NCF) Standard 60 0.83 5 5 3.5 1147.8 1145.3 Analysis
5 Inter Regional 2018 (U16 Team) 2018/05/04 2018/05/05 Frances Baard (NCF) Standard 60 0.83 5 4 2.0 931.8 996.8 Analysis
4 ZF Mgcawu Qualifier (2) 2018 (B) 2018/04/21 2018/04/21 ZF Mgcawu (NZF) Standard 60 0.83 5 5 3.5 873.0 940.4 Analysis
3 ZF Mgcawu Inter-Region Open Trials (Qualifier 2) 2018 (U16) 2018/03/24 2018/03/24 ZF Mgcawu (NZF) Standard 60 0.83 5 5 4.0 636.0 657.6 Analysis
2 ZF Mgcawu Schools District Open Chess Tournament 2018 (U15 Boys) 2018/03/17 2018/03/17 ZF Mgcawu (NZF) Standard 60 0.83 5 5 4.0 636.0 657.6 Analysis
1 ZF Mgcawu Qualifier Open Chess Tournament 2018 (B) 2018/02/17 2018/02/17 ZF Mgcawu (NZF) Standard 60 0.83 5 5 4.0 530.4 530.4 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 92 54 14 24 61.0 66.3 138.6 1143.7 1282.3
White 46 29 7 10 32.5 70.7 175.5 1126.1 1301.6
Black 46 25 7 14 28.5 62.0 101.6 1161.3 1263.0
Standard All 92 54 14 24 61.0 66.3 138.6 1143.7 1282.3
White 46 29 7 10 32.5 70.7 175.5 1126.1 1301.6
Black 46 25 7 14 28.5 62.0 101.6 1161.3 1263.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1040099004 Mienies, R (Rewaldo) 5 3.0 3 0 2 60.0 1027.8 85.0 1112.8 View list
2 104080872 Bezuidenhout, H (Hilton) 4 1.0 0 2 2 25.0 1044.3 -212.5 831.8 View list
3 1050098991 Booysen, V (Vuyani) 3 0.0 0 0 3 0.0 1258.3 -425.0 833.3 View list
4 1040099008 Kegakilwe, I (Itumeleng) 2 2.0 2 0 0 100.0 891.9 425.0 1316.9 View list
5 1040097076 Kruger, S (Stephanus) 2 2.0 2 0 0 100.0 583.2 425.0 1008.2 View list
6 1050116483 Nesithanye, M (Muano) 2 2.0 2 0 0 100.0 1263.8 425.0 1688.8 View list
7 105075131 Ntshabele, TP (Tokologo) 2 2.0 2 0 0 100.0 1263.8 425.0 1688.8 View list
8 103047776 West, W (William) 2 2.0 2 0 0 100.0 876.1 425.0 1301.1 View list
9 103011765 Hanekom, W (Driaan) 2 1.5 1 1 0 75.0 903.7 212.5 1116.2 View list
10 1050098989 Joodt, I (Ishuhanno) 2 1.5 1 1 0 75.0 1064.3 212.5 1276.8 View list
11 1050098988 Jooste, W (Waylin) 2 1.0 1 0 1 50.0 1271.5 0.0 1271.5 View list
12 204030549 Poolman, JM (Johanna) 2 1.0 1 0 1 50.0 583.2 0.0 583.2 View list
13 104045949 Serobe, R (Reatlehile) 2 1.0 0 2 0 50.0 1263.8 0.0 1263.8 View list
14 1040114311 Tshipa, L (Lekhu) 2 1.0 0 2 0 50.0 1263.8 0.0 1263.8 View list
15 104095803 Mkhize, O (Olwethu) 2 0.0 0 0 2 0.0 1263.8 -425.0 838.8 View list
16 104025270 Motalaota, N (Ngoako) 2 0.0 0 0 2 0.0 1263.8 -425.0 838.8 View list
17 104068823 Segale, N (Neo) 2 0.0 0 0 2 0.0 1263.8 -425.0 838.8 View list
18 200091455 Johannes, T (Tsholofelo) 1 1.0 1 0 0 100.0 1322.5 425.0 1747.5 View list
19 204081811 Jama, A (Abongile) 1 1.0 1 0 0 100.0 1210.5 425.0 1635.5 View list
20 1040099006 Jaftha, B (Brendon Siyahemba) 1 1.0 1 0 0 100.0 1171.4 425.0 1596.4 View list