PLAYER PAGE

Jaen-Pierre Jonker

107065190
Sedibeng (GSV)
Personal
Main rating
Rating 1335.4
K-factor 36
Floor 858.6
Highest 1383.4 (2024-11-01)
Min/Max +/- allowed 128
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1239.8
Final +/- 0
New Rating
()
Rating 1335.4
K-factor 36
Floor 858.6
Highest 1383.4 (2024-11-01)
Min/Max +/- allowed 127.7
Standard rating
Rating 1321.2
K-factor 36
Floor 857.7
Highest 1357.7 (2023-04-01)
Min/Max +/- allowed 132.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1239.8
Final +/- 0
New Rating
()
Rating 1321.2
K-factor 36
Floor 857.7
Highest 1357.7 (2023-04-01)
Min/Max +/- allowed 132.4
Rapid rating
Rating 942.8
K-factor 40
Floor 500
Highest 1200 (2020-01-01)
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 942.8
K-factor 40
Floor 500
Highest 1200 (2020-01-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 764
K-factor 40
Floor 500
Highest 1200 (2024-02-01)
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 764
K-factor 40
Floor 500
Highest 1200 (2024-02-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# 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 Gauteng Inter-Region at Emerald Resort 2025 (U20) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1354.4 5 2 1251.9 0 Details
2 GDE (D8) Sedibeng West Schools - Teams 2025 (U19) Standard 2025-08-16 2025-08-16 Sedibeng (GSV) 5 1303.2 5 4 1587.8 0 Details
3 Hoerskool Drie Riviere Open 08 March 2025 (A) Standard 2025-03-08 2025-03-08 Sedibeng (GSV) 5 1324.4 4 1 1174 0 Details
4 Gauteng Inter-Region at UJ 2024 (U18 Open) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1330.8 5 1.5 1292.7 0 Details
5 Queens Gambit Chess Open 2024 (A) Standard 2024-11-23 2024-11-23 Sedibeng (GSV) 5 1358.6 5 1.5 1208.9 0 Details
6 Fonteine Open 2024 (A) Standard 2024-10-19 2024-10-19 Sedibeng (GSV) 5 1194.3 5 2 1489 0 Details
7 Gauteng Top Schools 2024 (U19 Open) Rapid 2024-10-05 2024-10-05 Ekurhuleni (GE) 5 1194.3 4 3 1602.9 0 Details
8 Sedibeng West District Schools Chess Team's Championships 2024 (U19) Standard 2024-08-12 2024-08-12 Sedibeng (GSV) 5 1164.1 4 2.5 1363.8 0 Details
9 Eureka Open 27 July 2024 (D) Standard 2024-07-27 2024-07-27 Sedibeng (GSV) 5 1166.9 5 2.5 1182.2 0 Details
10 Midvaal Winter Classic 13 July 2024 (B) Rapid 2024-07-13 2024-07-13 Sedibeng (GSV) 7 1166.9 6 1.5 1139.3 0 Details
11 Valia's Open 2024 (A) Standard 2024-03-02 2024-03-02 Sedibeng (GSV) 5 1192.3 4 0.5 1013.5 0 Details
12 2024 Gauteng Inter-Region Chess Championship (U18A) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1254.2 5 0 952.3 0 Details
13 Dr Pieter Hangelbroek Rapid 2023 (A) Rapid 2023-10-28 2023-10-28 Sedibeng (GSV) 5 1294.2 5 1.5 982.5 0 Details
14 2023 Gauteng Top Schools (U17 Mixed) Standard 2023-08-19 2023-08-19 West Rand (GWR) 5 1266.4 5 2.5 1372 0 Details
15 2023 Sedibeng West District Schools Chess Tournament (U17+U19) Standard 2023-08-12 2023-08-12 Sedibeng (GSV) 5 1266.4 4 2 1345.4 0 Details
16 Overvaal Ope Jul 2023 (A) Standard 2023-07-22 2023-07-22 Sedibeng (GSV) 5 1293.9 4 1 1097.8 0 Details
17 VaalPark Primary Open Chess 2023 (A) Rapid 2023-06-16 2023-06-16 Sedibeng (GSV) 5 1314.1 4 1 1153.1 0 Details
18 D8 Schools Individuals 2023 (U18 Boys) Standard 2023-05-20 2023-05-20 West Rand (GWR) 5 1357.1 4 2 1317.7 0 Details
19 Valia's Chess Tournament 2023 (A) Standard 2023-05-06 2023-05-06 Sedibeng (GSV) 5 1357.1 5 1.5 1119.3 0 Details
20 Driehoek Open Chess Tournament 2023 (A) Standard 2023-05-13 2023-05-13 Sedibeng (GSV) 5 1357.1 4 1.5 1382.2 0 Details
21 Hoerskool Drie Riviere Open 2023 (A) Standard 2023-03-11 2023-03-11 Sedibeng (GSV) 5 1352 5 3 1376.3 0 Details
22 2022 Gauteng Schools Team Championships (U17 Open) Standard 2022-08-26 2022-08-26 Tshwane (GTP) 5 1348.4 5 4 1294.7 0 Details
23 Carel`s Chess Open 2022 (B) Standard 2022-03-05 2022-03-05 Sedibeng (GSV) 5 1315.5 5 4 1493.8 0 Details
24 Heidelberg Klub Open 2002 (A+B) Standard 2022-02-19 2022-02-19 Sedibeng (GSV) 5 1328 4 1 1239.8 0 Details
25 Hoerskool Drie Riviere 2020 (A+B) Standard 2020-03-07 2020-03-07 Sedibeng (GSV) 5 1308.6 5 4 1360.9 0 Details
26 AG Visser 2020 (A+B) Standard 2020-02-22 2020-02-22 Sedibeng (GSV) 5 1314.9 5 2.5 1272.3 0 Details
27 2019 South African Junior Team Championships (U14C) Classical 2020-01-04 2020-01-08 4 Knights (4K) 7 1286.8 7 5.5 1385 0 Details
28 GE vs GSV Inter Regional 2019 (U14A) Standard 2019-10-26 2019-10-26 Ekurhuleni (GE) 5 1297.9 5 2.5 1227 0 Details
29 Sedibeng Heritageday Open 2019 (A) Standard 2019-09-24 2019-09-24 Sedibeng (GSV) 5 1309.9 5 2 1248.6 0 Details
30 2019 Gauteng School League Finals (U13 Open) Standard 2019-08-23 2019-08-23 Tshwane (GTP) 5 1190.7 5 4 1415.4 0 Details
31 LS Voorwaarts & Dr P Hangelbroek Chess Open 2019 (C) Standard 2019-08-31 2019-08-31 Sedibeng (GSV) 5 1190.7 5 4 1314.3 0 Details
32 TST-MSA Chess Open 2019 (C) Standard 2019-07-20 2019-07-20 Sedibeng (GSV) 5 1187.8 5 3 1186 0 Details
33 Overvaal Chess Open 2019 (C) Standard 2019-06-15 2019-06-15 Sedibeng (GSV) 5 1099.2 5 4 1385.4 0 Details
34 Drie Riviere Open 2019 (C) Standard 2019-06-08 2019-06-08 Sedibeng (GSV) 5 1099.2 5 4 1269.6 0 Details
35 Amigo Spur Eligwa Chess Open 2019 (C) Standard 2019-05-18 2019-05-18 Sedibeng (GSV) 5 1118.1 5 2 1014.8 0 Details
36 Dirk de Koster Chess Open 2019 (B) Standard 2019-04-13 2019-04-13 Sedibeng (GSV) 5 1189.1 5 1 817 0 Details
37 Carels Open 2019 (B) Standard 2019-03-02 2019-03-02 Sedibeng (GSV) 5 1198.1 5 3 1096.4 0 Details
38 Eagle`s Open 2018 (C) Standard 2018-12-08 2018-12-08 Sedibeng (GSV) 5 1171.2 5 3.5 1236.7 0 Details
39 South African Junior Team Championships 2018 (U12C) Classical 2018-12-16 2018-12-20 4 Knights (4K) 7 1171.2 7 4.5 1140.8 0 Details
40 2018 Interregion Sedibeng vs Ekurhuleni (D) Standard 2018-11-03 2018-11-03 Sedibeng (GSV) 6 1121.6 5 3 1252.4 0 Details
41 2018 Sedibeng Summer Open (G) Standard 2018-10-20 2018-10-20 Sedibeng (GSV) 5 1019 5 4.5 1333.7 0 Details
42 Henley Open 2018 (C) Standard 2018-09-08 2018-09-08 Sedibeng (GSV) 5 973.7 5 3 1147.7 0 Details
43 Dr Pieter Hangelbroek Ope 2018 (D) Standard 2018-09-01 2018-09-01 Sedibeng (GSV) 5 973.7 5 4 974.7 0 Details
44 TST-MSA Tournament 2018 (D) Standard 2018-07-21 2018-07-21 Sedibeng (GSV) 5 985.2 5 3 917.7 0 Details
45 D8 Team League 2018 (U13) Standard 2018-07-28 2018-07-28 Sedibeng (GSV) 5 985.2 0 0 0 0 Details
46 Broadland`s Knights Chess Open 2018 (C) Standard 2018-06-16 2018-06-16 Sedibeng (GSV) 5 925.2 5 4 1094.5 0 Details
47 Word of Life Open 2018 (C) Standard 2018-05-12 2018-05-12 Sedibeng (GSV) 5 806.4 5 3 1059.2 0 Details
48 Amigo Spur Eligwa Chess Open 2018 (C) Standard 2018-05-19 2018-05-19 Sedibeng (GSV) 5 806.4 5 3 985.2 0 Details
49 Henley Open 2018 (C) Standard 2018-03-10 2018-03-10 Sedibeng (GSV) 5 810.4 5 3.5 826.4 0 Details
50 Carels Open 2018 (C) Standard 2018-03-03 2018-03-03 Sedibeng (GSV) 5 810.4 5 3 770.1 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 247
Wins 123
Draws 24
Losses 100
White 121
Black 126
White wins 57
Black wins 66
Score 135
Percent 54.7
Dp 39.6
AOR 1157.5
Performance 1197.1
Rankings (Main)
National
Overall 4836
Gender 4041
Age group 633
Gender/Age 528
Provincial
Overall 1628
Gender 1360
Age group 218
Gender/Age 179
Regional
Overall 163
Gender 141
Age group 20
Gender/Age 18
Rankings (Standard)
National
Overall 4732
Gender 3927
Age group 616
Gender/Age 515
Provincial
Overall 1691
Gender 1408
Age group 218
Gender/Age 179
Regional
Overall 173
Gender 145
Age group 21
Gender/Age 19
Rankings (Rapid)
National
Overall 6227
Gender 4551
Age group 591
Gender/Age 477
Provincial
Overall 1159
Gender 850
Age group 130
Gender/Age 99
Regional
Overall 210
Gender 162
Age group 39
Gender/Age 31
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 14
Score 7
Percent 50
Aor 1349.6
Dp 0
Prat 1349.6
Performance (History)
Games 247
Score 135
Percent 54.7
Aor 1157.5
Dp 39.6
Prat 1197.1
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Van Zyl, I (Ilane) 4 3 1 Dr Pieter Hangelbroek Ope 2018 (D) Sedibeng Heritageday Open 2019 (A) Details
Overall 2 Coetzee, A (Anika) 3 2 1 Broadland`s Knights Chess Open 2018 (C) Heidelberg Klub Open 2002 (A+B) Details
Overall 3 Mini, S (Siboniso) 3 1 2 D8 Schools Individuals 2023 (U18 Boys) 2023 Gauteng Top Schools (U17 Mixed) Details
Overall 4 Mittermaier, G (Gunther) 3 2 1 Valia's Open 2024 (A) GDE (D8) Sedibeng West Schools - Teams 2025 (U19) Details
Overall 5 Theron, A (Andre) 3 2 1 Sedibeng Heritageday Open 2019 (A) VaalPark Primary Open Chess 2023 (A) Details
Standard 1 Van Zyl, I (Ilane) 4 3 1 Dr Pieter Hangelbroek Ope 2018 (D) Sedibeng Heritageday Open 2019 (A) Details
Standard 2 Goosen, M (Mignon) 3 1 2 Hoerskool Drie Riviere 2020 (A+B) Sedibeng West District Schools Chess Team's Championships 2024 (U19) Details
Standard 3 Mini, S (Siboniso) 3 1 2 D8 Schools Individuals 2023 (U18 Boys) 2023 Gauteng Top Schools (U17 Mixed) Details
Standard 4 Hanekom, J (Jayden) 3 2 1 Carels Open 2018 (C) TST-MSA Chess Open 2019 (C) Details
Standard 5 Mittermaier, G (Gunther) 3 2 1 Valia's Open 2024 (A) GDE (D8) Sedibeng West Schools - Teams 2025 (U19) Details