Chess South Africa
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Chess South Africa
Opperman, M (Matthew)
Dob:
2008/05/16 (U18)
Gender:
Male
Chess SA id:
108077754
FIDE id:
Opperman
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/03/24 (31 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
1502.8
Curent Weighted rating
1527.3
Curent Weighted performance
1428.5
Current official/published rating (highest between Raw, WR and WP)
1527.3
Current floor (min rating allowed)
1065.2
Current highest rating achieved
1565.2
Current K-factor
32
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)
±107.7
Current Raw change used (final)
0.0
Projected new Raw rating
1502.8
Projected new Weighed rating
1526.6
Projected new Weighted performance
1428.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1526.6
Projected effective change (new Official - current Official)
-0.7
Projected new highest rating
1565.2
Projected new floor
1065.2
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
1452.6
Curent Weighted rating
1493.3
Curent Weighted performance
1360.0
Current official/published rating (highest between Raw, WR and WP)
1493.3
Current floor (min rating allowed)
1041.2
Current highest rating achieved
1541.2
Current K-factor
32
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)
±115.7
Current Raw change used (final)
0.0
Projected new Raw rating
1452.6
Projected new Weighed rating
1491.1
Projected new Weighted performance
1360.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1491.1
Projected effective change (new Official - current Official)
-2.3
Projected new highest rating
1541.2
Projected new floor
1041.2
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
1513.1
Curent Weighted rating
1446.2
Curent Weighted performance
1462.8
Current official/published rating (highest between Raw, WR and WP)
1513.1
Current floor (min rating allowed)
1013.1
Current highest rating achieved
1513.1
Current K-factor
32
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)
±106.1
Current Raw change used (final)
0.0
Projected new Raw rating
1513.1
Projected new Weighed rating
1454.5
Projected new Weighted performance
1462.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1513.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1513.1
Projected new floor
1013.1
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
998.0
Curent Weighted rating
998.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
998.0
Current floor (min rating allowed)
1013.1
Current highest rating achieved
998.0
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)
±221.1
Current Raw change used (final)
0.0
Projected new Raw rating
998.0
Projected new Weighed rating
998.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
998.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
998.0
Projected new floor
1013.1
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
4
Western Cape Inter Region Cup 2024 (U20 Boys)
2024/03/23
2024/03/24
Overberg (WOS)
Standard
90
0.94
5
5
2.0
1555.7
1499.3
Analysis
3
Western Cape HS Individuals Championship 2024 (U18 Boys)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
3.0
1555.7
1499.3
Analysis
2
West Coast Schools Chess Prestige Championships 2024 (U18+U20 Boys)
2024/02/24
2024/02/24
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1529.4
1455.2
Analysis
1
Lower West Coast Schools Chess Prestige 2024 (U18 Boys)
2024/02/17
2024/02/17
West Coast (WCU)
Rapid
30
0.60
5
5
5.0
1529.4
1455.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
51
Western Cape Inter Region Cup 2024 (U20 Boys)
2024/03/23
2024/03/24
Overberg (WOS)
Standard
90
0.94
5
5
2.0
1555.7
1499.3
Analysis
50
Western Cape HS Individuals Championship 2024 (U18 Boys)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
3.0
1555.7
1499.3
Analysis
49
West Coast Schools Chess Prestige Championships 2024 (U18+U20 Boys)
2024/02/24
2024/02/24
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1529.4
1455.2
Analysis
48
Lower West Coast Schools Chess Prestige 2024 (U18 Boys)
2024/02/17
2024/02/17
West Coast (WCU)
Rapid
30
0.60
5
5
5.0
1529.4
1455.2
Analysis
47
2023 Western Cape Rural Cup (U16)
2023/12/09
2023/12/10
Cape Winelands (WCW)
Standard
60
0.83
5
3
1.5
1536.8
1507.6
Analysis
46
Western Cape Top Schools 2023 (U18 Mixed)
2023/09/02
2023/09/03
Cape Winelands (WCW)
Standard
60
0.83
6
6
3.0
1549.0
1525.2
Analysis
45
CW Top Schools 2023 (Advanced)
2023/08/11
2023/08/13
West Coast (WCU)
Standard
90
0.94
6
6
3.0
1565.2
1541.2
Analysis
44
Pedro Booyse Top Schools 2023 (High School)
2023/07/29
2023/07/29
West Coast (WCU)
Standard
60
0.83
5
5
5.0
1546.9
1518.8
Analysis
43
Lower West Coast Top Schools Championships 2023 (High School)
2023/06/10
2023/06/10
West Coast (WCU)
Rapid
30
0.60
5
5
3.5
1551.5
1457.8
Analysis
42
Western Cape HS Individuals 2023 (U15 Boys)
2023/04/01
2023/04/02
Cape Town (WCT)
Standard
60
0.83
6
6
4.5
1521.2
1470.5
Analysis
41
West Coast High School Championships 2023 (U15 Boys)
2023/02/18
2023/02/18
West Coast (WCU)
Standard
60
0.83
6
6
5.0
1480.1
1446.8
Analysis
40
Lower West Coast High Schools Prestige 2023 (U15 Boys)
2023/02/11
2023/02/11
West Coast (WCU)
Rapid
30
0.60
5
5
5.0
1480.1
1346.8
Analysis
39
Genesis Chess Club Open 2023 (A)
2023/02/04
2023/02/04
West Coast (WCU)
Rapid
30
0.60
5
5
2.5
1480.1
1346.8
Analysis
38
West Coast Schools Chess Grand Challenge 2022 (HS Super)
2022/10/29
2022/10/29
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1467.2
1311.2
Analysis
37
Western Cape Top Schools 2022 (U15 Mix)
2022/09/16
2022/09/17
Overberg (WOS)
Standard
60
0.83
5
5
4.0
1471.8
1462.5
Analysis
36
Western Cape Woman`s Championship 2022 (Open)
2022/09/02
2022/09/04
West Coast (WCU)
Standard
90
0.94
5
5
3.0
1471.8
1462.5
Analysis
35
Pedro Booyse Top Schools 2022 (U15 Open)
2022/07/23
2022/07/23
West Coast (WCU)
Standard
60
0.83
6
4
4.0
1429.9
1426.7
Analysis
34
South African Open 2022 (U16)
2022/07/11
2022/07/13
Cape Town (WCT)
Standard
90
0.94
6
5
3.0
1429.9
1426.7
Analysis
33
Curro Durbanville Chess Open Rapid 2022 (U16)
2022/07/02
2022/07/02
Cape Town (WCT)
Rapid
25
0.54
7
5
4.0
1429.9
1263.0
Analysis
32
Onder-Weskus Top Skole 2022 (Hoerskool)
2022/06/04
2022/06/04
West Coast (WCU)
Rapid
30
0.60
5
4
2.0
1441.8
1268.8
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
21
14
0
7
14.0
66.7
141.7
1373.9
1515.5
White
9
5
0
4
5.0
55.6
47.2
1415.5
1462.8
Black
12
9
0
3
9.0
75.0
212.5
1342.6
1555.1
Standard
All
11
5
0
6
5.0
45.5
-38.6
1445.3
1406.7
White
5
2
0
3
2.0
40.0
-85.0
1444.1
1359.1
Black
6
3
0
3
3.0
50.0
0.0
1446.3
1446.3
Rapid
All
10
9
0
1
9.0
90.0
340.0
1295.3
1635.3
White
4
3
0
1
3.0
75.0
212.5
1379.8
1592.3
Black
6
6
0
0
6.0
100.0
425.0
1238.9
1663.9
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
290
193
18
79
202.0
69.7
167.1
1248.3
1415.4
White
142
93
9
40
97.5
68.7
158.6
1269.8
1428.4
Black
148
100
9
39
104.5
70.6
175.2
1227.6
1402.8
Standard
All
187
120
14
53
127.0
67.9
152.3
1229.8
1382.1
White
91
56
9
26
60.5
66.5
140.1
1255.1
1395.2
Black
96
64
5
27
66.5
69.3
163.8
1205.8
1369.6
Rapid
All
98
69
4
25
71.0
72.4
190.8
1296.4
1487.2
White
48
34
0
14
34.0
70.8
177.1
1308.7
1485.8
Black
50
35
4
11
37.0
74.0
204.0
1284.6
1488.6
Blitz
All
5
4
0
1
4.0
80.0
255.0
997.4
1252.4
White
3
3
0
0
3.0
100.0
425.0
1093.9
1518.9
Black
2
1
0
1
1.0
50.0
0.0
852.6
852.6
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
108090548
Lewaks, S (Shaundre)
9
5.0
5
0
4
55.6
1359.4
47.2
1406.6
View list
2
1080096247
Titus, D (Dominique)
7
3.5
3
1
3
50.0
1271.6
0.0
1271.6
View list
3
107087110
Du Plessis, S (Stefan)
6
5.0
5
0
1
83.3
1487.2
283.3
1770.5
View list
4
109090543
Visagie, C (Christopher)
5
2.0
2
0
3
40.0
1395.7
-85.0
1310.7
View list
5
109093484
Duiker, P (Phillip)
4
4.0
4
0
0
100.0
1500.6
425.0
1925.6
View list
6
1090096256
Ocks, K (Keano)
4
4.0
4
0
0
100.0
1340.7
425.0
1765.7
View list
7
1090096311
Schroeder, L (Liam)
4
2.5
2
1
1
62.5
1500.6
106.3
1606.8
View list
8
108083939
Rosenberg, W (Wagheed)
4
2.0
2
0
2
50.0
1398.6
0.0
1398.6
View list
9
1080105922
Basson, Z (Zanco)
3
3.0
3
0
0
100.0
1335.7
425.0
1760.7
View list
10
107078598
Cloete, A (Alesundro)
3
3.0
3
0
0
100.0
1443.9
425.0
1868.9
View list
11
1080117544
Domingo, C (Curwin)
3
3.0
3
0
0
100.0
1536.8
425.0
1961.8
View list
12
1090105088
Williams, C (Clarance-John)
3
3.0
3
0
0
100.0
1523.4
425.0
1948.4
View list
13
1080108614
Wu, J (Jason)
3
2.5
2
1
0
83.3
1494.6
283.3
1777.9
View list
14
1070110603
Bell, N (Neyo)
2
2.0
2
0
0
100.0
1429.9
425.0
1854.9
View list
15
1090117535
Coetzee, E (Enrico)
2
2.0
2
0
0
100.0
1402.2
425.0
1827.2
View list
16
109087219
Crone, C (Callan)
2
2.0
2
0
0
100.0
1019.7
425.0
1444.7
View list
17
1090096276
De Klerk, J (Jason)
2
2.0
2
0
0
100.0
1238.8
425.0
1663.8
View list
18
1080110109
Domingo, C (Cowan)
2
2.0
2
0
0
100.0
1343.0
425.0
1768.0
View list
19
1090099730
Drennen, L (Liam)
2
2.0
2
0
0
100.0
1513.7
425.0
1938.7
View list
20
109093559
Kameel, L (Lindon)
2
2.0
2
0
0
100.0
1410.8
425.0
1835.8
View list