Player Page

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: 2024/05/19 (33 days ago)
Ratings
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
Current Raw rating1507.3
Current Weighted rating1526.1
Current Weighted performance1432.2
Current official/published rating (highest between Raw, WR and WP)1526.1
Current highest rating achieved1565.2
Current floor (min rating allowed)1065.2
Current K-factor32
Games played this month0
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)±107.0
Current Raw change used (final)0.0
Projected new Raw rating1507.3
Projected new Weighed rating1404.8
Projected new Weighted performance1432.2
Projected new final Raw rating (if new WP > new Raw)1507.3
Projected new highest rating1565.2
Projected new floor1065.2
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1507.3
Projected effective change (new Official - current Official)-18.8
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
Current Raw rating1458.4
Current Weighted rating1489.1
Current Weighted performance1405.2
Current official/published rating (highest between Raw, WR and WP)1489.1
Current highest rating achieved1541.2
Current floor (min rating allowed)1041.2
Current K-factor32
Games played this month0
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)±114.7
Current Raw change used (final)0.0
Projected new Raw rating1458.4
Projected new Weighed rating1370.5
Projected new Weighted performance1405.2
Projected new final Raw rating (if new WP > new Raw)1458.4
Projected new highest rating1541.2
Projected new floor1041.2
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1458.4
Projected effective change (new Official - current Official)-30.7
s
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
Current Raw rating1513.1
Current Weighted rating1462.1
Current Weighted performance1472.1
Current official/published rating (highest between Raw, WR and WP)1513.1
Current highest rating achieved1513.1
Current floor (min rating allowed)1013.1
Current K-factor32
Games played this month0
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 rating1513.1
Projected new Weighed rating1347.7
Projected new Weighted performance1472.1
Projected new final Raw rating (if new WP > new Raw)1513.1
Projected new highest rating1513.1
Projected new floor1013.1
Projected new K-facor32
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
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
Current Raw rating998.0
Current Weighted rating998.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)998.0
Current highest rating achieved998.0
Current floor (min rating allowed)500.0
Current K-factor40
Games played this month0
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 rating998.0
Projected new Weighed rating918.2
Projected new Weighted performance84.5
Projected new final Raw rating (if new WP > new Raw)998.0
Projected new highest rating998.0
Projected new floor500.0
Projected new K-facor40
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
5 West Coast & Mykonos Open 2024 (Open) 2024/05/17 2024/05/19 West Coast (WCU) Standard 90 0.94 6 6 4.5 1502.8 1452.6 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
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
52 West Coast & Mykonos Open 2024 (Open) 2024/05/17 2024/05/19 West Coast (WCU) Standard 90 0.94 6 6 4.5 1502.8 1452.6 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
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 27 18 1 8 18.5 68.5 157.4 1359.6 1517.0
White 12 7 1 4 7.5 62.5 106.3 1377.5 1483.8
Black 15 11 0 4 11.0 73.3 198.3 1345.2 1543.6
Standard All 17 9 1 7 9.5 55.9 50.0 1397.4 1447.4
White 8 4 1 3 4.5 56.3 53.1 1376.4 1429.5
Black 9 5 0 4 5.0 55.6 47.2 1416.1 1463.3
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 296 197 19 80 206.5 69.8 168.0 1249.5 1417.5
White 145 95 10 40 100.0 69.0 161.2 1269.7 1430.9
Black 151 102 9 40 106.5 70.5 174.5 1230.2 1404.7
Standard All 193 124 15 54 131.5 68.1 154.1 1232.3 1386.4
White 94 58 10 26 63.0 67.0 144.7 1255.4 1400.1
Black 99 66 5 28 68.5 69.2 163.1 1210.3 1373.5
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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