Player Page

Jonker, J (Jaen-Pierre)
Dob: 2007/04/14 (U18)
Gender: Male
Chess SA id: 107065190
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2024/03/02 (78 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 rating1166.9
Curent Weighted rating1262.3
Curent Weighted performance992.3
Current official/published rating (highest between Raw, WR and WP)1262.3
Current floor (min rating allowed)857.1
Current highest rating achieved1357.1
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)±173.8
Current Raw change used (final)0.0
Projected new Raw rating1166.9
Projected new Weighed rating1252.1
Projected new Weighted performance992.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1252.1
Projected effective change (new Official - current Official)-10.2
Projected new highest rating1357.1
Projected new floor857.1
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 rating1185.5
Curent Weighted rating1282.0
Curent Weighted performance1041.2
Current official/published rating (highest between Raw, WR and WP)1282.0
Current floor (min rating allowed)857.7
Current highest rating achieved1357.7
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)±169.3
Current Raw change used (final)0.0
Projected new Raw rating1185.5
Projected new Weighed rating1272.2
Projected new Weighted performance1041.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1272.2
Projected effective change (new Official - current Official)-9.8
Projected new highest rating1357.7
Projected new floor857.7
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 rating787.6
Curent Weighted rating780.5
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)787.6
Current floor (min rating allowed)500.0
Current highest rating achieved787.6
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)±298.4
Current Raw change used (final)0.0
Projected new Raw rating787.6
Projected new Weighed rating781.5
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)787.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating787.6
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 rating764.0
Curent Weighted rating764.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)764.0
Current floor (min rating allowed)500.0
Current highest rating achieved764.0
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)±308.6
Current Raw change used (final)0.0
Projected new Raw rating764.0
Projected new Weighed rating764.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)764.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating764.0
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Valia's Open 2024 (A) 2024/03/02 2024/03/02 Sedibeng (GSV) Standard 61 0.84 5 4 0.5 1192.3 1223.7 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U18A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 0.0 1254.2 1300.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
41 Valia's Open 2024 (A) 2024/03/02 2024/03/02 Sedibeng (GSV) Standard 61 0.84 5 4 0.5 1192.3 1223.7 Analysis
40 2024 Gauteng Inter-Region Chess Championship (U18A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 0.0 1254.2 1300.0 Analysis
39 Dr Pieter Hangelbroek Rapid 2023 (A) 2023/10/28 2023/10/28 Sedibeng (GSV) Rapid 30 0.60 5 5 1.5 1294.2 782.4 Analysis
38 2023 Gauteng Top Schools (U17 Mixed) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 5 2.5 1266.4 1268.0 Analysis
37 2023 Sedibeng West District Schools Chess Tournament (U17+U19) 2023/08/12 2023/08/12 Sedibeng (GSV) Standard 60 0.83 5 4 2.0 1266.4 1268.0 Analysis
36 Overvaal Ope Jul 2023 (A) 2023/07/22 2023/07/22 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1293.9 1305.1 Analysis
35 VaalPark Primary Open Chess 2023 (A) 2023/06/16 2023/06/16 Sedibeng (GSV) Rapid 45 0.74 5 4 1.0 1314.1 764.0 Analysis
34 D8 Schools Individuals 2023 (U18 Boys) 2023/05/20 2023/05/20 West Rand (GWR) Standard 60 0.83 5 4 2.0 1357.1 1357.7 Analysis
33 Driehoek Open Chess Tournament 2023 (A) 2023/05/13 2023/05/13 Sedibeng (GSV) Standard 60 0.83 5 4 1.5 1357.1 1357.7 Analysis
32 Valia's Chess Tournament 2023 (A) 2023/05/06 2023/05/06 Sedibeng (GSV) Standard 60 0.83 5 5 1.5 1357.1 1357.7 Analysis
31 Hoerskool Drie Riviere Open 2023 (A) 2023/03/11 2023/03/11 Sedibeng (GSV) Standard 60 0.83 5 5 3.0 1352.0 1352.7 Analysis
30 2022 Gauteng Schools Team Championships (U17 Open) 2022/08/26 2022/08/26 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1348.4 1349.8 Analysis
29 Carel`s Chess Open 2022 (B) 2022/03/05 2022/03/05 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1315.5 1310.9 Analysis
28 Heidelberg Klub Open 2002 (A+B) 2022/02/19 2022/02/19 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1328.0 1327.1 Analysis
27 Hoerskool Drie Riviere 2020 (A+B) 2020/03/07 2020/03/07 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1308.6 1303.7 Analysis
26 AG Visser 2020 (A+B) 2020/02/22 2020/02/22 Sedibeng (GSV) Standard 61 0.83 5 5 2.5 1314.9 1310.2 Analysis
25 2019 South African Junior Team Championships (U14C) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 5.5 1286.8 1277.4 Analysis
24 GE vs GSV Inter Regional 2019 (U14A) 2019/10/26 2019/10/26 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1297.9 1290.7 Analysis
23 Sedibeng Heritageday Open 2019 (A) 2019/09/24 2019/09/24 Sedibeng (GSV) Standard 61 0.83 5 5 2.0 1309.9 1304.0 Analysis
22 LS Voorwaarts & Dr P Hangelbroek Chess Open 2019 (C) 2019/08/31 2019/08/31 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1190.7 1191.1 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 9 0 1 8 0.5 5.6 -377.8 1357.3 979.5
White 5 0 0 5 0.0 0.0 -425.0 1360.0 935.0
Black 4 0 1 3 0.5 12.5 -318.8 1353.9 1035.2
Standard All 9 0 1 8 0.5 5.6 -377.8 1357.3 979.5
White 5 0 0 5 0.0 0.0 -425.0 1360.0 935.0
Black 4 0 1 3 0.5 12.5 -318.8 1353.9 1035.2
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 199 105 17 77 113.5 57.0 59.8 1107.2 1167.0
White 98 51 9 38 55.5 56.6 56.4 1093.9 1150.2
Black 101 54 8 39 58.0 57.4 63.1 1120.1 1183.2
Standard All 190 103 16 71 111.0 58.4 71.6 1100.5 1172.1
White 93 51 8 34 55.0 59.1 77.7 1087.1 1164.8
Black 97 52 8 37 56.0 57.7 65.7 1113.4 1179.1
Rapid All 9 2 1 6 2.5 27.8 -188.9 1247.2 1058.3
White 5 0 1 4 0.5 10.0 -340.0 1219.1 879.1
Black 4 2 0 2 2.0 50.0 0.0 1282.3 1282.3
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 206066092 Van Zyl, I (Ilane) 4 2.0 2 0 2 50.0 1122.9 0.0 1122.9 View list
2 207064041 Coetzee, A (Anika) 3 2.0 2 0 1 66.7 1090.7 141.7 1232.4 View list
3 107085046 Hanekom, J (Jayden) 3 2.0 2 0 1 66.7 994.5 141.7 1136.1 View list
4 206091403 Visser, TM (Tracy) 3 2.0 2 0 1 66.7 1071.0 141.7 1212.7 View list
5 104086509 Khumalo, N (Nkosinathi) 3 1.5 1 1 1 50.0 1305.4 0.0 1305.4 View list
6 1060112904 Mini, S (Siboniso) 3 0.0 0 0 3 0.0 1296.6 -425.0 871.6 View list
7 172037577 Theron, A (Andre) 3 0.0 0 0 3 0.0 1325.3 -425.0 900.3 View list
8 105085039 Hanekom, D (Dylan) 2 2.0 2 0 0 100.0 954.8 425.0 1379.8 View list
9 2040115831 Malefane, P (Praise) 2 2.0 2 0 0 100.0 1145.0 425.0 1570.0 View list
10 107048334 Neves, TT (Tremayne) 2 2.0 2 0 0 100.0 942.8 425.0 1367.8 View list
11 106056513 Human, PMB (Petrus) 2 1.5 1 1 0 75.0 1167.0 212.5 1379.5 View list
12 1050108484 Bholo, SV (Sicelo Vuyo) 2 1.0 1 0 1 50.0 1251.7 0.0 1251.7 View list
13 105044684 Nel, A (Altus) 2 1.0 1 0 1 50.0 1099.2 0.0 1099.2 View list
14 172030853 Pretorius, HS (Hendrik) 2 1.0 1 0 1 50.0 1323.1 0.0 1323.1 View list
15 107064054 Tabane, G (Gomolemo) 2 1.0 1 0 1 50.0 997.8 0.0 997.8 View list
16 208061285 Van Der Net, ME (Mariel) 2 1.0 1 0 1 50.0 1108.7 0.0 1108.7 View list
17 105075205 Van Rhyn, J (Josh) 2 1.0 1 0 1 50.0 808.4 0.0 808.4 View list
18 207068593 Griesel, ZC (Zandrie C) 2 1.0 0 2 0 50.0 808.4 0.0 808.4 View list
19 107073270 De Lange, J (Janco) 2 0.5 0 1 1 25.0 1144.3 -212.5 931.8 View list
20 207061368 Goosen, M (Mignon) 2 0.5 0 1 1 25.0 1332.8 -212.5 1120.3 View list