Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Jonker, R (Reagan)
Dob:
2011/12/08 (U14)
Gender:
Male
Chess SA id:
1110115390
FIDE id:
Region:
West Rand (GWR)
Citizen:
RSA
Title(s):
Last active:
2024/05/04 (14 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
1283.3
Curent Weighted rating
1315.0
Curent Weighted performance
1227.6
Current official/published rating (highest between Raw, WR and WP)
1315.0
Current floor (min rating allowed)
856.3
Current highest rating achieved
1356.3
Current K-factor
36
Games played this month
5
Score (S)
4.0
Expected score (We)
3.14
Difference (S-We)
0.86
Current Raw change (no limits, including tournament time weight)
25.7
Current min/max change allowed (with limits)
±147.3
Current Raw change used (final)
25.7
Projected new Raw rating
1309.0
Projected new Weighed rating
1315.2
Projected new Weighted performance
1227.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1315.2
Projected effective change (new Official - current Official)
+0.2
Projected new highest rating
1356.3
Projected new floor
856.3
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
1282.6
Curent Weighted rating
1315.2
Curent Weighted performance
1225.4
Current official/published rating (highest between Raw, WR and WP)
1315.2
Current floor (min rating allowed)
860.6
Current highest rating achieved
1360.6
Current K-factor
36
Games played this month
5
Score (S)
4.0
Expected score (We)
3.07
Difference (S-We)
0.93
Current Raw change (no limits, including tournament time weight)
33.5
Current min/max change allowed (with limits)
±147.4
Current Raw change used (final)
33.5
Projected new Raw rating
1316.1
Projected new Weighed rating
1315.6
Projected new Weighted performance
1225.4
Projected new official/published rating (highest between new Raw, new WR and new WP)
1316.1
Projected effective change (new Official - current Official)
+0.8
Projected new highest rating
1360.6
Projected new floor
860.6
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
1034.2
Curent Weighted rating
1034.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1034.2
Current floor (min rating allowed)
534.2
Current highest rating achieved
1034.2
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)
±210.0
Current Raw change used (final)
0.0
Projected new Raw rating
1034.2
Projected new Weighed rating
1034.2
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1034.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1034.2
Projected new floor
534.2
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
534.2
Current highest rating achieved
1200.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
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 rating
1200.0
Projected new floor
534.2
Projected new K-facor
36
Tournaments
History
Tournament:
2024 D2 Schools Individuals (U13 Boys)
Start:
2024/05/04
End:
2024/05/04
Host:
GWR
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
4.0
Main rating:
1283.3
Rating gain/loss:
25.7
Type rating:
1282.6
Rating gain/loss:
33.5
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
5
2024 D2 Schools Individuals (U13 Boys)
2024/05/04
2024/05/04
West Rand (GWR)
Standard
60
0.83
5
5
4.0
1283.3
1282.6
Analysis
4
2024 West Rand RHS Open (Rooks)
2024/04/13
2024/04/13
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1277.9
1276.8
Analysis
3
2024 West Rand Juniors (U14)
2024/03/09
2024/03/09
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1273.7
1272.1
Analysis
2
2024 West Rand Open (U14)
2024/02/03
2024/02/03
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1267.4
1266.3
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U14B)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
0.0
1344.6
1346.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
20
2024 D2 Schools Individuals (U13 Boys)
2024/05/04
2024/05/04
West Rand (GWR)
Standard
60
0.83
5
5
4.0
1283.3
1282.6
Analysis
19
2024 West Rand RHS Open (Rooks)
2024/04/13
2024/04/13
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1277.9
1276.8
Analysis
18
2024 West Rand Juniors (U14)
2024/03/09
2024/03/09
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1273.7
1272.1
Analysis
17
2024 West Rand Open (U14)
2024/02/03
2024/02/03
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1267.4
1266.3
Analysis
16
2024 Gauteng Inter-Region Chess Championship (U14B)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
0.0
1344.6
1346.6
Analysis
15
2023 West Rand Trials (U14)
2023/09/09
2023/09/09
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1341.9
1343.0
Analysis
14
West Rand at Bastion 2023 (Rooks)
2023/08/05
2023/08/05
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1316.8
1312.4
Analysis
13
D2 School League Finals 2023 (U13)
2023/07/22
2023/07/22
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1309.0
1303.4
Analysis
12
2023 West Rand RHS Open (Rooks)
2023/06/10
2023/06/10
West Rand (GWR)
Standard
60
0.83
5
5
2.0
1325.1
1322.8
Analysis
11
D2 Schools Individuals 2023 (U13 Boys)
2023/05/13
2023/05/13
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1334.1
1334.0
Analysis
10
West Rand Juniors 2023 (U14)
2023/03/18
2023/03/18
West Rand (GWR)
Standard
60
0.83
5
5
3.5
1314.7
1308.4
Analysis
9
WR Tournament and Coaching 2023 (U14)
2023/02/25
2023/02/25
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1322.8
1317.0
Analysis
8
2023 West Rand Open (U14)
2023/02/04
2023/02/04
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1322.8
1317.0
Analysis
7
West Rand vs Bojanala 2022 (U12B)
2022/11/05
2022/11/05
Bojanala Platina (NBR)
Standard
60
0.83
5
5
2.0
1356.3
1360.6
Analysis
6
West Rand Trials 2022 (U12)
2022/09/03
2022/09/03
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1312.5
1355.2
Analysis
5
2022 Gauteng Schools Team Championships (U11 Open)
2022/08/27
2022/08/27
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1135.5
1186.0
Analysis
4
D2 School League Finals 2022 (U11)
2022/08/20
2022/08/20
West Rand (GWR)
Standard
60
0.83
6
6
6.0
1135.5
1186.0
Analysis
3
2nd West Rand Open 2022 (Juniors)
2022/08/06
2022/08/06
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1135.5
1186.0
Analysis
2
D2 Schools Individuals 2022 (U11 Boys)
2022/05/07
2022/05/07
West Rand (GWR)
Standard
60
0.83
5
5
2.0
1134.8
1200.0
Analysis
1
2019 SWVG Arnold Classic (Rapid Open)
2019/05/18
2019/05/19
Tshwane (GTP)
Rapid
35
0.66
10
5
0.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
25
12
2
11
13.0
52.0
17.0
1243.4
1260.4
White
13
7
1
5
7.5
57.7
65.4
1263.1
1328.5
Black
12
5
1
6
5.5
45.8
-35.4
1222.1
1186.7
Standard
All
25
12
2
11
13.0
52.0
17.0
1243.4
1260.4
White
13
7
1
5
7.5
57.7
65.4
1263.1
1328.5
Black
12
5
1
6
5.5
45.8
-35.4
1222.1
1186.7
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
101
54
3
44
55.5
55.0
42.1
1242.7
1284.8
White
48
32
1
15
32.5
67.7
150.5
1237.5
1388.0
Black
53
22
2
29
23.0
43.4
-56.1
1247.5
1191.4
Standard
All
96
54
3
39
55.5
57.8
66.4
1246.4
1312.8
White
46
32
1
13
32.5
70.7
175.5
1249.1
1424.7
Black
50
22
2
26
23.0
46.0
-34.0
1243.9
1209.9
Rapid
All
5
0
0
5
0.0
0.0
-425.0
1172.5
747.5
White
2
0
0
2
0.0
0.0
-425.0
969.3
544.3
Black
3
0
0
3
0.0
0.0
-425.0
1308.0
883.0
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1120136689
Kalimashe, T (Tshireletso)
4
1.0
1
0
3
25.0
1228.0
-212.5
1015.5
View list
2
1130135848
Magagula, N (Nkosingiphile)
3
3.0
3
0
0
100.0
1195.2
425.0
1620.2
View list
3
2110140248
Roos, S (Shani)
3
1.0
1
0
2
33.3
1305.2
-141.7
1163.5
View list
4
1100144525
Du Plessis, D (Dotynian)
2
2.0
2
0
0
100.0
1332.3
425.0
1757.3
View list
5
2110144955
Coetzee, K (Kairi)
2
2.0
2
0
0
100.0
1135.5
425.0
1560.5
View list
6
1110157463
Labuschagne, Q (Quinten)
2
2.0
2
0
0
100.0
1307.8
425.0
1732.8
View list
7
2120144959
Sambo, L (Lwandle)
2
2.0
2
0
0
100.0
1135.5
425.0
1560.5
View list
8
2110149257
Fourie, C (Caitlin)
2
1.0
1
0
1
50.0
1298.3
0.0
1298.3
View list
9
1110102534
Esterhuizen, Z (Zane)
2
0.0
0
0
2
0.0
1222.3
-425.0
797.3
View list
10
2100145853
Ngwangwa, N (Nonhlanhla)
2
0.0
0
0
2
0.0
1328.3
-425.0
903.3
View list
11
1100149261
Oosthuizen, R (Ruwan)
2
0.0
0
0
2
0.0
1328.4
-425.0
903.4
View list
12
206081700
Bezu, R (Reabetswe)
1
1.0
1
0
0
100.0
1316.8
425.0
1741.8
View list
13
1110301056
Bawa, J (Joshua)
1
1.0
1
0
0
100.0
1273.7
425.0
1698.7
View list
14
2100101007
Bassie, U (Unathi)
1
1.0
1
0
0
100.0
1309.0
425.0
1734.0
View list
15
2110140239
Barnard, A (Anjanka)
1
1.0
1
0
0
100.0
1356.3
425.0
1781.3
View list
16
1100149252
Adcock, A (Aiden)
1
1.0
1
0
0
100.0
1322.8
425.0
1747.8
View list
17
2120149240
Fouche, H (Halley)
1
1.0
1
0
0
100.0
1267.4
425.0
1692.4
View list
18
109089206
De Jager, JJ (Juan)
1
1.0
1
0
0
100.0
1135.5
425.0
1560.5
View list
19
1110152501
Davids, M (Moegamat)
1
1.0
1
0
0
100.0
1314.7
425.0
1739.7
View list
20
1100152499
Butale, K (Kadzasha Thabang)
1
1.0
1
0
0
100.0
1314.7
425.0
1739.7
View list