Chess South Africa
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Chess South Africa
Jonker, R (Ruan)
Dob:
2008/06/09 (U18)
Gender:
Male
Chess SA id:
1080150210
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/05/18 (4 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
1393.0
Curent Weighted rating
1316.3
Curent Weighted performance
1362.1
Current official/published rating (highest between Raw, WR and WP)
1393.0
Current floor (min rating allowed)
893.0
Current highest rating achieved
1393.0
Current K-factor
36
Games played this month
10
Score (S)
6.5
Expected score (We)
6.67
Difference (S-We)
-0.17
Current Raw change (no limits, including tournament time weight)
-15.3
Current min/max change allowed (with limits)
±126.0
Current Raw change used (final)
-15.3
Projected new Raw rating
1377.7
Projected new Weighed rating
1324.3
Projected new Weighted performance
1362.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1377.7
Projected effective change (new Official - current Official)
-15.3
Projected new highest rating
1393.0
Projected new floor
893.0
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
1368.3
Curent Weighted rating
1301.9
Curent Weighted performance
1343.9
Current official/published rating (highest between Raw, WR and WP)
1368.3
Current floor (min rating allowed)
868.3
Current highest rating achieved
1368.3
Current K-factor
36
Games played this month
6
Score (S)
3.0
Expected score (We)
3.72
Difference (S-We)
-0.72
Current Raw change (no limits, including tournament time weight)
-25.9
Current min/max change allowed (with limits)
±130.5
Current Raw change used (final)
-25.9
Projected new Raw rating
1342.4
Projected new Weighed rating
1308.0
Projected new Weighted performance
1343.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1343.9
Projected effective change (new Official - current Official)
-24.4
Projected new highest rating
1368.3
Projected new floor
868.3
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
1338.4
Curent Weighted rating
1265.5
Curent Weighted performance
1302.9
Current official/published rating (highest between Raw, WR and WP)
1338.4
Current floor (min rating allowed)
838.4
Current highest rating achieved
1338.4
Current K-factor
36
Games played this month
4
Score (S)
3.5
Expected score (We)
2.91
Difference (S-We)
0.59
Current Raw change (no limits, including tournament time weight)
21.2
Current min/max change allowed (with limits)
±136.1
Current Raw change used (final)
21.2
Projected new Raw rating
1359.6
Projected new Weighed rating
1274.8
Projected new Weighted performance
1302.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1359.6
Projected effective change (new Official - current Official)
+21.2
Projected new highest rating
1359.6
Projected new floor
859.6
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
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)
838.4
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
838.4
Projected new K-facor
36
Tournaments
History
Tournament:
Cape Town Junior League Finals 2024 (U18 Open A)
Start:
2024/05/18
End:
2024/05/18
Host:
WCT
Type:
Rapid
Time:
25
Time weight:
0.54
Rounds:
4
Games:
4
Score:
3.5
Main rating:
1393.0
Rating gain/loss:
12.8
Type rating:
1338.4
Rating gain/loss:
21.2
Analysis
Tournament:
Steinitz Chess Festival 2024 (Open)
Start:
2024/05/10
End:
2024/05/12
Host:
WCT
Type:
Standard
Time:
90
Time weight:
0.94
Rounds:
6
Games:
6
Score:
3.0
Main rating:
1393.0
Rating gain/loss:
-28.1
Type rating:
1368.3
Rating gain/loss:
-25.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
6
Cape Town Junior League Finals 2024 (U18 Open A)
2024/05/18
2024/05/18
Cape Town (WCT)
Rapid
25
0.54
5
4
3.5
1393.0
1338.4
Analysis
5
Steinitz Chess Festival 2024 (Open)
2024/05/10
2024/05/12
Cape Town (WCT)
Standard
90
0.94
6
6
3.0
1393.0
1368.3
Analysis
4
Cape Town Junior League Qualifier 2024 (U18 Open)
2024/04/06
2024/04/06
Cape Town (WCT)
Rapid
25
0.54
6
6
5.0
1373.2
1287.3
Analysis
3
Cape Town Open Chess Championship 2024 (Intermediate)
2024/03/16
2024/03/17
Cape Town (WCT)
Standard
70
0.87
6
6
5.0
1350.0
1331.0
Analysis
2
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1350.0
1331.0
Analysis
1
CT District East Schools Chess Individuals Trails 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.0
1367.0
1347.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
15
Cape Town Junior League Finals 2024 (U18 Open A)
2024/05/18
2024/05/18
Cape Town (WCT)
Rapid
25
0.54
5
4
3.5
1393.0
1338.4
Analysis
14
Steinitz Chess Festival 2024 (Open)
2024/05/10
2024/05/12
Cape Town (WCT)
Standard
90
0.94
6
6
3.0
1393.0
1368.3
Analysis
13
Cape Town Junior League Qualifier 2024 (U18 Open)
2024/04/06
2024/04/06
Cape Town (WCT)
Rapid
25
0.54
6
6
5.0
1373.2
1287.3
Analysis
12
Cape Town Open Chess Championship 2024 (Intermediate)
2024/03/16
2024/03/17
Cape Town (WCT)
Standard
70
0.87
6
6
5.0
1350.0
1331.0
Analysis
11
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1350.0
1331.0
Analysis
10
CT District East Schools Chess Individuals Trails 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.0
1367.0
1347.6
Analysis
9
Kraaifontein Open 2023 (Open)
2023/12/10
2023/12/10
Cape Town (WCT)
Rapid
30
0.60
6
6
3.0
1367.4
1283.0
Analysis
8
Paarl Boys High Chess Festival 2023 (Elite Division)
2023/10/13
2023/10/14
Cape Winelands (WCW)
Standard
60
0.83
6
6
4.0
1355.4
1332.5
Analysis
7
Cape Town Junior Chess League Finals 2023 (U16A)
2023/09/16
2023/09/16
Cape Town (WCT)
Rapid
25
0.54
7
7
2.5
1297.2
1282.6
Analysis
6
WP Club League 2023 (D PlayOffs)
2023/09/02
2023/09/09
Cape Town (WCT)
Standard
70
0.87
5
4
4.0
1297.2
1268.4
Analysis
5
CT Metro District East Top Schools Chess 2023 (U15 Mixed)
2023/07/29
2023/07/29
Cape Town (WCT)
Rapid
30
0.60
3
3
1.0
1274.1
1241.2
Analysis
4
Cape Town Junior Chess League - Round 1 2023 (U16A)
2023/07/22
2023/07/22
Cape Town (WCT)
Rapid
25
0.54
7
7
5.0
1274.1
1241.2
Analysis
3
Cape Town Junior League 2nd Qualifier 2023 (U16)
2023/06/03
2023/06/03
Cape Town (WCT)
Rapid
25
0.54
6
5
3.5
1261.3
1200.0
Analysis
2
Steinitz Open 2023 (C)
2023/05/26
2023/05/28
Cape Town (WCT)
Standard
70
0.87
6
6
4.0
1202.7
1198.4
Analysis
1
District East Schools Chess Individual Trials 2023 (U15 Boys)
2023/02/03
2023/02/04
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
33
21
3
9
22.5
68.2
154.5
1242.4
1396.9
White
18
13
2
3
14.0
77.8
236.1
1233.0
1469.2
Black
15
8
1
6
8.5
56.7
56.7
1253.6
1310.2
Standard
All
23
13
2
8
14.0
60.9
92.4
1247.4
1339.8
White
12
8
2
2
9.0
75.0
212.5
1245.9
1458.4
Black
11
5
0
6
5.0
45.5
-38.6
1249.1
1210.5
Rapid
All
10
8
1
1
8.5
85.0
297.5
1230.7
1528.2
White
6
5
0
1
5.0
83.3
283.3
1207.3
1490.6
Black
4
3
1
0
3.5
87.5
318.8
1265.8
1584.6
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
83
50
5
28
52.5
63.3
112.7
1278.7
1391.4
White
44
27
4
13
29.0
65.9
135.2
1278.3
1413.5
Black
39
23
1
15
23.5
60.3
87.2
1279.2
1366.4
Standard
All
45
28
2
15
29.0
64.4
122.8
1257.7
1380.5
White
24
16
2
6
17.0
70.8
177.1
1263.5
1440.5
Black
21
12
0
9
12.0
57.1
60.7
1251.1
1311.8
Rapid
All
38
22
3
13
23.5
61.8
100.7
1303.7
1404.3
White
20
11
2
7
12.0
60.0
85.0
1296.1
1381.1
Black
18
11
1
6
11.5
63.9
118.1
1312.1
1430.1
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
1080157920
Philisani, Y (Yamkela)
2
2.0
2
0
0
100.0
1267.7
425.0
1692.7
View list
2
1090130553
Scholtz, T (Triston)
2
2.0
2
0
0
100.0
1383.1
425.0
1808.1
View list
3
1060158262
Daniels, P (Peter)
2
1.5
1
1
0
75.0
1361.6
212.5
1574.1
View list
4
1080153072
Goussard, T (Tiaan)
2
1.0
1
0
1
50.0
1314.3
0.0
1314.3
View list
5
1100142369
Uys, B (Brendan)
2
1.0
1
0
1
50.0
1267.7
0.0
1267.7
View list
6
1090150199
Abrahams, D (Dante)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
1080150201
Beni, I (Inathi)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
8
1060193441
Aphile, M (Matinise)
1
1.0
1
0
0
100.0
1367.0
425.0
1792.0
View list
9
208061417
Botha, L (Lika)
1
1.0
1
0
0
100.0
1355.4
425.0
1780.4
View list
10
1080162366
Craig, C (Connor)
1
1.0
1
0
0
100.0
1373.2
425.0
1798.2
View list
11
1070162696
Comitis, G (Gabriel)
1
1.0
1
0
0
100.0
1355.4
425.0
1780.4
View list
12
183005400
Combrink, FC (Frederik)
1
1.0
1
0
0
100.0
1297.2
425.0
1722.2
View list
13
1080157058
Ferreira, M (Marko)
1
1.0
1
0
0
100.0
1202.7
425.0
1627.7
View list
14
2130137739
Fani, K (Khazimla)
1
1.0
1
0
0
100.0
1350.0
425.0
1775.0
View list
15
210090620
Goliath, E (Eugeney)
1
1.0
1
0
0
100.0
1261.3
425.0
1686.3
View list
16
1100118917
Jawoodien, A (Aziz)
1
1.0
1
0
0
100.0
1274.1
425.0
1699.1
View list
17
1110150425
Haman, R (Rico)
1
1.0
1
0
0
100.0
1297.2
425.0
1722.2
View list
18
1010137734
Kilawushe, I (Inganathi)
1
1.0
1
0
0
100.0
1350.0
425.0
1775.0
View list
19
2100108991
Leenderts, S (Shanique)
1
1.0
1
0
0
100.0
1274.1
425.0
1699.1
View list
20
198018569
Louw, FWT (Frederik)
1
1.0
1
0
0
100.0
1367.4
425.0
1792.4
View list