Player Page

Oosthuizen, E (Ethan)
Dob: 2010/02/15 (U16)
Gender: Male
Chess SA id: 1100135522
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/09/28 (14 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 rating1690.9
Current Weighted rating1558.6
Current Weighted performance1694.8
Current official/published rating (highest between Raw, WR and WP)1694.8
Current highest rating achieved1690.9
Current floor (min rating allowed)1190.9
Current K-factor28
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)±82.4
Current Raw change used (final)0.0
Projected new Raw rating1690.9
Projected new Weighed rating1435.3
Projected new Weighted performance1694.8
Projected new final Raw rating (if new WP > new Raw)1694.8
Projected new highest rating1694.8
Projected new floor1194.8
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1694.8
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 rating1703.3
Current Weighted rating1559.3
Current Weighted performance1701.0
Current official/published rating (highest between Raw, WR and WP)1703.3
Current highest rating achieved1703.3
Current floor (min rating allowed)1203.3
Current K-factor28
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)±80.9
Current Raw change used (final)0.0
Projected new Raw rating1703.3
Projected new Weighed rating1436.2
Projected new Weighted performance1701.0
Projected new final Raw rating (if new WP > new Raw)1703.3
Projected new highest rating1703.3
Projected new floor1203.3
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1703.3
Projected effective change (new Official - current Official)=0.0
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 rating1527.4
Current Weighted rating1418.9
Current Weighted performance1544.2
Current official/published rating (highest between Raw, WR and WP)1544.2
Current highest rating achieved1527.4
Current floor (min rating allowed)1027.4
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)±104.0
Current Raw change used (final)0.0
Projected new Raw rating1527.4
Projected new Weighed rating1308.8
Projected new Weighted performance1544.2
Projected new final Raw rating (if new WP > new Raw)1544.2
Projected new highest rating1544.2
Projected new floor1044.2
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1544.2
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 rating1222.4
Current Weighted rating1222.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1222.4
Current highest rating achieved1222.4
Current floor (min rating allowed)722.4
Current K-factor36
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)±160.6
Current Raw change used (final)0.0
Projected new Raw rating1222.4
Projected new Weighed rating1124.5
Projected new Weighted performance364.7
Projected new final Raw rating (if new WP > new Raw)1222.4
Projected new highest rating1222.4
Projected new floor722.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1222.4
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
13 2024 South Africa National Schools Chess Championship (U15 Boys) 2024/09/27 2024/09/28 Nelson Mandela Bay (ENM) Standard 70 0.87 7 7 5.0 1626.6 1662.3 Analysis
12 Western Cape Top Schools Championship 2024 (U15 Mixed) 2024/08/30 2024/09/01 Eden (WEG) Standard 60 0.83 6 6 6.0 1626.6 1662.3 Analysis
11 Cape Winelands - Top Schools 2024 (U15 Mixed) 2024/07/27 2024/07/27 Cape Winelands (WCW) Standard 60 0.83 5 4 4.0 1602.2 1566.5 Analysis
10 Curro Durbanville Chess Rapid Open 2024 (Championship) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1602.2 1507.3 Analysis
9 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 4.0 1568.1 1545.0 Analysis
8 Western Cape - Kings and Queens 2024 (Boys) 2024/06/08 2024/06/08 Overberg (WOS) Rapid 30 0.60 5 4 4.0 1568.1 1441.1 Analysis
7 South African Junior Closed Chess Championship 2024 (U14 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 4.5 1565.9 1532.5 Analysis
6 Western Cape HS Individuals Championship 2024 (U15 Boys) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 5.0 1506.0 1506.2 Analysis
5 Cape Town Open Chess Championship 2024 (Advanced) 2024/03/15 2024/03/17 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1506.0 1506.2 Analysis
4 Cape Winelands Schools - Prestige 2024 (U15 Boys) 2024/03/02 2024/03/02 Cape Winelands (WCW) Standard 60 0.83 5 5 3.0 1506.0 1506.2 Analysis
3 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 4 3.0 1470.4 1508.1 Analysis
2 Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) 2024/02/17 2024/02/17 Cape Winelands (WCW) Rapid 35 0.66 6 6 5.0 1470.4 1358.7 Analysis
1 Cape Winelands - Marie Delport Memorial 2024 (Open) 2024/01/27 2024/01/28 Cape Winelands (WCW) Standard 70 0.87 6 6 3.0 1512.2 1574.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
40 2024 South Africa National Schools Chess Championship (U15 Boys) 2024/09/27 2024/09/28 Nelson Mandela Bay (ENM) Standard 70 0.87 7 7 5.0 1626.6 1662.3 Analysis
39 Western Cape Top Schools Championship 2024 (U15 Mixed) 2024/08/30 2024/09/01 Eden (WEG) Standard 60 0.83 6 6 6.0 1626.6 1662.3 Analysis
38 Cape Winelands - Top Schools 2024 (U15 Mixed) 2024/07/27 2024/07/27 Cape Winelands (WCW) Standard 60 0.83 5 4 4.0 1602.2 1566.5 Analysis
37 Curro Durbanville Chess Rapid Open 2024 (Championship) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1602.2 1507.3 Analysis
36 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 4.0 1568.1 1545.0 Analysis
35 Western Cape - Kings and Queens 2024 (Boys) 2024/06/08 2024/06/08 Overberg (WOS) Rapid 30 0.60 5 4 4.0 1568.1 1441.1 Analysis
34 South African Junior Closed Chess Championship 2024 (U14 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 4.5 1565.9 1532.5 Analysis
33 Western Cape HS Individuals Championship 2024 (U15 Boys) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 5.0 1506.0 1506.2 Analysis
32 Cape Town Open Chess Championship 2024 (Advanced) 2024/03/15 2024/03/17 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1506.0 1506.2 Analysis
31 Cape Winelands Schools - Prestige 2024 (U15 Boys) 2024/03/02 2024/03/02 Cape Winelands (WCW) Standard 60 0.83 5 5 3.0 1506.0 1506.2 Analysis
30 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 4 3.0 1470.4 1508.1 Analysis
29 Cape Winelands Schools - HS Trials 1 2024 (U15 Boys) 2024/02/17 2024/02/17 Cape Winelands (WCW) Rapid 35 0.66 6 6 5.0 1470.4 1358.7 Analysis
28 Cape Winelands - Marie Delport Memorial 2024 (Open) 2024/01/27 2024/01/28 Cape Winelands (WCW) Standard 70 0.87 6 6 3.0 1512.2 1574.6 Analysis
27 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 1487.0 1467.8 Analysis
26 Western Cape Closed Championship 2023 (B) 2023/09/23 2023/09/25 Cape Town (WCT) Standard 120 1.00 6 5 1.0 1524.7 1507.8 Analysis
25 Western Cape Top Schools 2023 (U13 Mixed) 2023/09/02 2023/09/03 Cape Winelands (WCW) Standard 60 0.83 6 5 3.0 1524.7 1507.8 Analysis
24 CW Top Schools 2023 (U13 Mix + U13 Girls) 2023/08/26 2023/08/26 Cape Winelands (WCW) Rapid 32 0.63 5 5 4.0 1522.2 1296.1 Analysis
23 CW Top Schools 2023 (Advanced) 2023/08/11 2023/08/13 West Coast (WCU) Standard 90 0.94 6 6 3.0 1522.2 1525.4 Analysis
22 WP Club League 2023 (C) 2023/07/29 2023/09/09 Cape Town (WCT) Standard 120 1.00 11 1 0.5 1524.7 1507.8 Analysis
21 Cape Winelands Open 2023 (Advanced) 2023/07/22 2023/07/23 Cape Winelands (WCW) Standard 70 0.87 6 6 3.5 1509.1 1512.9 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 78 52 1 25 52.5 67.3 147.1 1469.0 1616.1
White 41 28 1 12 28.5 69.5 165.9 1456.3 1622.2
Black 37 24 0 13 24.0 64.9 126.4 1483.1 1609.4
Standard All 62 40 1 21 40.5 65.3 130.2 1470.4 1600.6
White 33 21 1 11 21.5 65.2 128.8 1461.5 1590.3
Black 29 19 0 10 19.0 65.5 131.9 1480.4 1612.3
Rapid All 16 12 0 4 12.0 75.0 212.5 1463.8 1676.3
White 8 7 0 1 7.0 87.5 318.8 1434.8 1753.6
Black 8 5 0 3 5.0 62.5 106.3 1492.8 1599.0
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 219 138 4 77 140.0 63.9 118.4 1399.1 1517.5
White 110 70 2 38 71.0 64.5 123.6 1397.8 1521.5
Black 109 68 2 39 69.0 63.3 113.1 1400.4 1513.5
Standard All 170 108 4 58 110.0 64.7 125.0 1396.6 1521.6
White 86 54 2 30 55.0 64.0 118.6 1400.5 1519.1
Black 84 54 2 28 55.0 65.5 131.5 1392.5 1524.1
Rapid All 42 28 0 14 28.0 66.7 141.7 1377.9 1519.6
White 20 15 0 5 15.0 75.0 212.5 1340.9 1553.4
Black 22 13 0 9 13.0 59.1 77.3 1411.6 1488.9
Blitz All 7 2 0 5 2.0 28.6 -182.1 1588.2 1406.1
White 4 1 0 3 1.0 25.0 -212.5 1625.1 1412.6
Black 3 1 0 2 1.0 33.3 -141.7 1539.0 1397.3
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1100097431 Lielieveld, J (Jadrian) 4 2.0 2 0 2 50.0 1467.4 0.0 1467.4 View list
2 110078333 Neethling, S (Sean) 3 3.0 3 0 0 100.0 1564.2 425.0 1989.2 View list
3 1100139466 Tiemie, J (Jaheim) 3 3.0 3 0 0 100.0 1510.6 425.0 1935.6 View list
4 109078336 Willis, C (Cronan) 3 3.0 3 0 0 100.0 1566.4 425.0 1991.4 View list
5 1090107095 Botha, D (Derick) 3 2.0 2 0 1 66.7 1307.2 141.7 1448.9 View list
6 1100108720 Goosen, R (Ruan) 3 2.0 2 0 1 66.7 1490.9 141.7 1632.6 View list
7 1110109002 Maruma, KB (Kamogelo) 3 2.0 2 0 1 66.7 1549.1 141.7 1690.8 View list
8 1140136551 Resnekov, O (Oliver) 3 2.0 2 0 1 66.7 1522.4 141.7 1664.1 View list
9 1110097140 Milhomem, L (Lucas) 3 1.0 1 0 2 33.3 1311.7 -141.7 1170.0 View list
10 1090108767 Potgieter, W (Werne) 3 1.0 1 0 2 33.3 1487.8 -141.7 1346.1 View list
11 1800140067 Oosthuizen, W (Wesley) 2 2.0 2 0 0 100.0 1471.6 425.0 1896.6 View list
12 1100149796 Smit, L (Liam) 2 2.0 2 0 0 100.0 1528.7 425.0 1953.7 View list
13 1090153071 Strumpfer, C (Christiaan) 2 2.0 2 0 0 100.0 1488.2 425.0 1913.2 View list
14 1100140084 Van Wyk, I (Igshaan) 2 2.0 2 0 0 100.0 1507.3 425.0 1932.3 View list
15 1100118990 Cockin, R (Ruan) 2 1.0 1 0 1 50.0 1389.1 0.0 1389.1 View list
16 187006098 Davids, JW (Jo-Wayne) 2 1.0 1 0 1 50.0 1510.7 0.0 1510.7 View list
17 108087782 Jonkers, T (Tristan) 2 1.0 1 0 1 50.0 1420.7 0.0 1420.7 View list
18 1100118923 Mackenzie, T (Tayden) 2 1.0 1 0 1 50.0 1458.5 0.0 1458.5 View list
19 1110106190 Salimu, C (Chase) 2 0.0 0 0 2 0.0 1545.3 -425.0 1120.3 View list
20 206046692 Van Zyl, B (Bea) 2 0.0 0 0 2 0.0 1518.5 -425.0 1093.5 View list