Chess South Africa
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Chess South Africa
Ribbens, R (Reuben)
Dob:
2013/03/01 (U12)
Gender:
Male
Chess SA id:
1130140635
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/05/01 (17 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
1488.3
Curent Weighted rating
1467.1
Curent Weighted performance
1479.5
Current official/published rating (highest between Raw, WR and WP)
1488.3
Current floor (min rating allowed)
1097.7
Current highest rating achieved
1597.7
Current K-factor
32
Games played this month
9
Score (S)
3.0
Expected score (We)
4.67
Difference (S-We)
-1.67
Current Raw change (no limits, including tournament time weight)
-53.4
Current min/max change allowed (with limits)
±110.0
Current Raw change used (final)
-53.4
Projected new Raw rating
1434.9
Projected new Weighed rating
1466.2
Projected new Weighted performance
1479.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1479.5
Projected effective change (new Official - current Official)
-8.8
Projected new highest rating
1597.7
Projected new floor
1097.7
Projected new K-facor
32
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
1483.7
Curent Weighted rating
1458.7
Curent Weighted performance
1475.0
Current official/published rating (highest between Raw, WR and WP)
1483.7
Current floor (min rating allowed)
1094.0
Current highest rating achieved
1594.0
Current K-factor
32
Games played this month
9
Score (S)
3.0
Expected score (We)
4.67
Difference (S-We)
-1.67
Current Raw change (no limits, including tournament time weight)
-53.4
Current min/max change allowed (with limits)
±110.7
Current Raw change used (final)
-53.4
Projected new Raw rating
1430.3
Projected new Weighed rating
1457.9
Projected new Weighted performance
1475.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1475.0
Projected effective change (new Official - current Official)
-8.7
Projected new highest rating
1594.0
Projected new floor
1094.0
Projected new K-facor
32
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)
700.0
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
700.0
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
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)
700.0
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
700.0
Projected new K-facor
36
Tournaments
History
Tournament:
South African Junior Closed Chess Championship 2024 (U12 Open)
Start:
2024/04/27
End:
2024/05/01
Host:
GE
Type:
Standard
Time:
120
Time weight:
1.00
Rounds:
9
Games:
9
Score:
3.0
Main rating:
1488.3
Rating gain/loss:
-53.4
Type rating:
1483.7
Rating gain/loss:
-53.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
8
South African Junior Closed Chess Championship 2024 (U12 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
3.0
1488.3
1483.7
Analysis
7
Bojanala Olienpark's One For The Ages 2024 (Knights)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1373.5
1353.3
Analysis
6
Bojanala's Rating Express 2024 (Knights)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.5
1373.5
1353.3
Analysis
5
2024 Lubowski Open Chess Tournament (D1)
2024/03/23
2024/03/24
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1449.5
1434.9
Analysis
4
2024 Chris Greyling Open Chess Tournament (C)
2024/03/16
2024/03/16
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1449.5
1434.9
Analysis
3
2024 Tshwane Chess AHS Open Chess Tournament (C1)
2024/02/24
2024/02/24
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1466.0
1453.5
Analysis
2
2024 Tshwane Chess OPEN Registration Tournament (B)
2024/01/27
2024/01/27
Tshwane (GTP)
Standard
60
0.83
5
4
0.5
1483.4
1474.9
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U12A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1483.4
1474.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
29
South African Junior Closed Chess Championship 2024 (U12 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
3.0
1488.3
1483.7
Analysis
28
Bojanala Olienpark's One For The Ages 2024 (Knights)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1373.5
1353.3
Analysis
27
Bojanala's Rating Express 2024 (Knights)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.5
1373.5
1353.3
Analysis
26
2024 Lubowski Open Chess Tournament (D1)
2024/03/23
2024/03/24
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1449.5
1434.9
Analysis
25
2024 Chris Greyling Open Chess Tournament (C)
2024/03/16
2024/03/16
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1449.5
1434.9
Analysis
24
2024 Tshwane Chess AHS Open Chess Tournament (C1)
2024/02/24
2024/02/24
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1466.0
1453.5
Analysis
23
2024 Tshwane Chess OPEN Registration Tournament (B)
2024/01/27
2024/01/27
Tshwane (GTP)
Standard
60
0.83
5
4
0.5
1483.4
1474.9
Analysis
22
2024 Gauteng Inter-Region Chess Championship (U12A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1483.4
1474.9
Analysis
21
Lardies Open Tournament 2023 (B)
2023/10/28
2023/10/28
Tshwane (GTP)
Standard
60
0.83
5
4
1.0
1512.6
1509.5
Analysis
20
2023 African Youth Chess Championship
2023/09/02
2023/09/08
Egypt (EGY)
Standard
120
1.00
9
9
6.0
1597.7
1594.0
Analysis
19
2023 Etienne Lewis Closed Tournament (U12)
2023/08/25
2023/08/27
Tshwane (GTP)
Standard
90
0.94
7
7
5.5
1480.6
1473.2
Analysis
18
2023 Gauteng Top Schools (U11 Mixed)
2023/08/18
2023/08/18
West Rand (GWR)
Standard
60
0.83
5
5
5.0
1480.6
1473.2
Analysis
17
2023 Tshwane South School District CLOSED League Championship (U11)
2023/07/29
2023/07/29
Tshwane (GTP)
Standard
60
0.83
5
5
5.0
1441.2
1431.5
Analysis
16
2023 Menlo Open Tournament (C)
2023/07/22
2023/07/22
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1441.2
1431.5
Analysis
15
2023 Elize Steenkamp Open Tournament (B)
2023/06/16
2023/06/16
Tshwane (GTP)
Standard
90
0.94
6
6
2.5
1462.3
1452.6
Analysis
14
Gauteng Schools Individual Finals 2023 (U11 Boys)
2023/05/26
2023/05/26
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1456.7
1444.6
Analysis
13
2023 Milos Ristic Open Tournament (BC)
2023/04/27
2023/04/27
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1463.9
1456.8
Analysis
12
2023 Tshwane South School District CLOSED Individual Championships (U11 Open)
2023/04/22
2023/04/22
Tshwane (GTP)
Standard
60
0.83
5
5
5.0
1463.9
1456.8
Analysis
11
Laerskool Constantiapark Open Chess Tournament 2023 (U12)
2023/02/18
2023/02/18
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1438.9
1425.1
Analysis
10
2023 Tshwane Chess Open Registration Tournament (C1)
2023/01/28
2023/01/28
Tshwane (GTP)
Standard
60
0.83
5
4
1.5
1470.0
1464.1
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
43
18
10
15
23.0
53.5
29.7
1373.0
1402.6
White
20
8
6
6
11.0
55.0
42.5
1362.3
1404.8
Black
23
10
4
9
12.0
52.2
18.5
1382.2
1400.7
Standard
All
43
18
10
15
23.0
53.5
29.7
1373.0
1402.6
White
20
8
6
6
11.0
55.0
42.5
1362.3
1404.8
Black
23
10
4
9
12.0
52.2
18.5
1382.2
1400.7
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
157
98
16
43
106.0
67.5
148.9
1288.0
1436.9
White
78
48
11
19
53.5
68.6
158.0
1284.6
1442.6
Black
79
50
5
24
52.5
66.5
139.9
1291.4
1431.3
Standard
All
157
98
16
43
106.0
67.5
148.9
1288.0
1436.9
White
78
48
11
19
53.5
68.6
158.0
1284.6
1442.6
Black
79
50
5
24
52.5
66.5
139.9
1291.4
1431.3
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1130140475
Van Der Westhuizen, L (Lihan)
6
3.0
2
2
2
50.0
1430.0
0.0
1430.0
View list
2
1130134043
De Bruin, H (Hanno)
4
4.0
4
0
0
100.0
1360.8
425.0
1785.8
View list
3
2140135776
Roberts, F (Frans-Leigh)
4
3.5
3
1
0
87.5
1413.2
318.8
1732.0
View list
4
1120133903
Buchner, E (Emil)
3
3.0
3
0
0
100.0
1467.5
425.0
1892.5
View list
5
1140133936
Retief, M (Michael)
3
2.0
2
0
1
66.7
1381.3
141.7
1523.0
View list
6
1130134055
Swart, J (Jevan)
3
2.0
2
0
1
66.7
1381.5
141.7
1523.2
View list
7
1130134041
Botha, L (Logan)
2
2.0
2
0
0
100.0
1451.8
425.0
1876.8
View list
8
1120133904
Fokker, CD (Christiaan Dirk)
2
2.0
2
0
0
100.0
1452.6
425.0
1877.6
View list
9
1150144109
Nkabinde, N (Nkazimulo)
2
2.0
2
0
0
100.0
1453.6
425.0
1878.6
View list
10
1130108360
Sathish, A (Aarya)
2
2.0
2
0
0
100.0
1325.6
425.0
1750.6
View list
11
1130130105
Slabbert, M (Marko)
2
2.0
2
0
0
100.0
1361.1
425.0
1786.1
View list
12
1130143710
Terblanche, B (Bernard)
2
2.0
2
0
0
100.0
1373.5
425.0
1798.5
View list
13
1130136645
Truscott, A (Adriaan)
2
2.0
2
0
0
100.0
1332.3
425.0
1757.3
View list
14
2130140636
Truscott, A (Ane)
2
2.0
2
0
0
100.0
1206.2
425.0
1631.2
View list
15
1130133911
Butner, J (James)
2
1.0
1
0
1
50.0
1337.0
0.0
1337.0
View list
16
1120139981
Kirstein, T (Tinus Ederich)
2
1.0
1
0
1
50.0
1500.4
0.0
1500.4
View list
17
1130131224
Minny, O (Oban)
2
1.0
1
0
1
50.0
1415.2
0.0
1415.2
View list
18
1120111803
Retief, A (Antonie)
2
1.0
0
2
0
50.0
1463.6
0.0
1463.6
View list
19
1130141987
Mallach, D (Daniel)
2
0.5
0
1
1
25.0
1485.8
-212.5
1273.3
View list
20
1090107165
Oosthuizen, L (Ludrick)
2
0.5
0
1
1
25.0
1455.6
-212.5
1243.1
View list