Chess South Africa
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Chess South Africa
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
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1166.9
Curent Weighted rating
1262.3
Curent Weighted performance
992.3
Current official/published rating (highest between Raw, WR and WP)
1262.3
Current floor (min rating allowed)
857.1
Current highest rating achieved
1357.1
Current K-factor
36
Games played this month
0
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 rating
1166.9
Projected new Weighed rating
1252.1
Projected new Weighted performance
992.3
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 rating
1357.1
Projected new floor
857.1
Projected new K-facor
36
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 rating
1185.5
Curent Weighted rating
1282.0
Curent Weighted performance
1041.2
Current official/published rating (highest between Raw, WR and WP)
1282.0
Current floor (min rating allowed)
857.7
Current highest rating achieved
1357.7
Current K-factor
36
Games played this month
0
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 rating
1185.5
Projected new Weighed rating
1272.2
Projected new Weighted performance
1041.2
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 rating
1357.7
Projected new floor
857.7
Projected new K-facor
36
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 rating
787.6
Curent Weighted rating
780.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
787.6
Current floor (min rating allowed)
500.0
Current highest rating achieved
787.6
Current K-factor
40
Games played this month
0
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 rating
787.6
Projected new Weighed rating
781.5
Projected new Weighted performance
0.0
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 rating
787.6
Projected new floor
500.0
Projected new K-facor
40
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 rating
764.0
Curent Weighted rating
764.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
764.0
Current floor (min rating allowed)
500.0
Current highest rating achieved
764.0
Current K-factor
40
Games played this month
0
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 rating
764.0
Projected new Weighed rating
764.0
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 rating
764.0
Projected new floor
500.0
Projected new K-facor
40
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
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
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
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
1
2
3
Game History
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
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