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: 2024/06/08 (12 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 rating1568.1
Current Weighted rating1522.5
Current Weighted performance1545.0
Current official/published rating (highest between Raw, WR and WP)1568.1
Current highest rating achieved1568.1
Current floor (min rating allowed)1068.1
Current K-factor32
Games played this month4
Score (S)4.0
Expected score (We)2.88
Difference (S-We)0.67
Current Raw change (no limits, including tournament time weight)21.5
Current min/max change allowed (with limits)±98.1
Current Raw change used (final)21.5
Projected new Raw rating1589.6
Projected new Weighed rating1401.7
Projected new Weighted performance1613.5
Projected new final Raw rating (if new WP > new Raw)1613.5
Projected new highest rating1613.5
Projected new floor1113.5
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1613.5
Projected effective change (new Official - current Official)+45.4
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 rating1545.0
Current Weighted rating1517.6
Current Weighted performance1545.0
Current official/published rating (highest between Raw, WR and WP)1545.0
Current highest rating achieved1574.6
Current floor (min rating allowed)1074.6
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)±101.4
Current Raw change used (final)0.0
Projected new Raw rating1545.0
Projected new Weighed rating1397.3
Projected new Weighted performance1545.0
Projected new final Raw rating (if new WP > new Raw)1545.0
Projected new highest rating1574.6
Projected new floor1074.6
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1545.0
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 rating1441.1
Current Weighted rating1364.5
Current Weighted performance1379.4
Current official/published rating (highest between Raw, WR and WP)1441.1
Current highest rating achieved1441.1
Current floor (min rating allowed)941.1
Current K-factor32
Games played this month4
Score (S)4.0
Expected score (We)2.75
Difference (S-We)1.25
Current Raw change (no limits, including tournament time weight)40.0
Current min/max change allowed (with limits)±117.6
Current Raw change used (final)40.0
Projected new Raw rating1481.1
Projected new Weighed rating1257.6
Projected new Weighted performance1548.7
Projected new final Raw rating (if new WP > new Raw)1548.7
Projected new highest rating1548.7
Projected new floor1048.7
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1548.7
Projected effective change (new Official - current Official)+107.6
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 rating1220.8
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 rating1123.5
Projected new Weighted performance383.0
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
Tournament: Western Cape - Kings and Queens 2024 (Boys)
Start: 2024/06/08  End: 2024/06/08  Host: WOS  Type: Rapid   Time: 30  Time weight: 0.60  Rounds: 4
Games: 4  Score: 4.0
Main rating: 1568.1  Rating gain/loss: 21.5
Type rating: 1441.1  Rating gain/loss: 40.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
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
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
20 Steinitz Open 2023 (A+B) 2023/05/26 2023/05/28 Cape Town (WCT) Standard 90 0.94 6 6 2.0 1539.1 1554.5 Analysis
19 Western Cape PS Individuals 2023 (U13 Boys) 2023/05/05 2023/05/06 Cape Town (WCT) Standard 60 0.83 6 6 5.0 1539.1 1554.5 Analysis
18 Midas Paints Chess Cup Term 2 2023 (Open) 2023/04/15 2023/04/15 Cape Winelands (WCW) Rapid 13 0.35 6 6 2.0 1556.3 1298.3 Analysis
17 Cape Winelands Schools Prestige 2023 (U13 Boys) 2023/03/11 2023/03/11 Cape Winelands (WCW) Standard 60 0.83 5 5 5.0 1518.3 1510.3 Analysis
16 Cape Winelands Schools Chess - Trials 1 2023 (U13 Boys) 2023/02/18 2023/02/18 Cape Winelands (WCW) Standard 60 0.83 5 5 5.0 1496.3 1484.4 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 46 30 1 15 30.5 66.3 138.6 1424.3 1562.9
White 24 15 1 8 15.5 64.6 124.0 1411.3 1535.2
Black 22 15 0 7 15.0 68.2 154.5 1438.5 1593.1
Standard All 36 21 1 14 21.5 59.7 82.6 1435.5 1518.2
White 19 10 1 8 10.5 55.3 44.7 1416.5 1461.2
Black 17 11 0 6 11.0 64.7 125.0 1456.8 1581.8
Rapid All 10 9 0 1 9.0 90.0 340.0 1384.0 1724.0
White 5 5 0 0 5.0 100.0 425.0 1391.5 1816.5
Black 5 4 0 1 4.0 80.0 255.0 1376.5 1631.5
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 187 116 4 67 118.0 63.1 111.4 1376.2 1487.5
White 93 57 2 34 58.0 62.4 105.1 1375.5 1480.6
Black 94 59 2 33 60.0 63.8 117.6 1376.8 1494.3
Standard All 144 89 4 51 91.0 63.2 112.2 1374.5 1486.7
White 72 43 2 27 44.0 61.1 94.4 1376.8 1471.2
Black 72 46 2 24 47.0 65.3 129.9 1372.3 1502.2
Rapid All 36 25 0 11 25.0 69.4 165.3 1341.4 1506.7
White 17 13 0 4 13.0 76.5 225.0 1311.6 1536.6
Black 19 12 0 7 12.0 63.2 111.8 1368.2 1480.0
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 1100139466 Tiemie, J (Jaheim) 3 3.0 3 0 0 100.0 1510.6 425.0 1935.6 View list
2 1090107095 Botha, D (Derick) 3 2.0 2 0 1 66.7 1307.2 141.7 1448.9 View list
3 1100108720 Goosen, R (Ruan) 3 2.0 2 0 1 66.7 1490.9 141.7 1632.6 View list
4 1140136551 Resnekov, O (Oliver) 3 2.0 2 0 1 66.7 1522.4 141.7 1664.1 View list
5 1100097431 Lielieveld, J (Jadrian) 3 1.0 1 0 2 33.3 1422.4 -141.7 1280.8 View list
6 1110097140 Milhomem, L (Lucas) 3 1.0 1 0 2 33.3 1311.7 -141.7 1170.0 View list
7 1090108767 Potgieter, W (Werne) 3 1.0 1 0 2 33.3 1487.8 -141.7 1346.1 View list
8 1110109002 Maruma, KB (Kamogelo) 2 2.0 2 0 0 100.0 1522.5 425.0 1947.5 View list
9 110078333 Neethling, S (Sean) 2 2.0 2 0 0 100.0 1545.2 425.0 1970.2 View list
10 1800140067 Oosthuizen, W (Wesley) 2 2.0 2 0 0 100.0 1471.6 425.0 1896.6 View list
11 1100149796 Smit, L (Liam) 2 2.0 2 0 0 100.0 1528.7 425.0 1953.7 View list
12 1090153071 Strumpfer, C (Christiaan) 2 2.0 2 0 0 100.0 1488.2 425.0 1913.2 View list
13 1100140084 Van Wyk, I (Igshaan) 2 2.0 2 0 0 100.0 1507.3 425.0 1932.3 View list
14 1100118990 Cockin, R (Ruan) 2 1.0 1 0 1 50.0 1389.1 0.0 1389.1 View list
15 187006098 Davids, JW (Jo-Wayne) 2 1.0 1 0 1 50.0 1510.7 0.0 1510.7 View list
16 1100118923 Mackenzie, T (Tayden) 2 1.0 1 0 1 50.0 1458.5 0.0 1458.5 View list
17 1110106190 Salimu, C (Chase) 2 0.0 0 0 2 0.0 1545.3 -425.0 1120.3 View list
18 206046692 Van Zyl, B (Bea) 2 0.0 0 0 2 0.0 1518.5 -425.0 1093.5 View list
19 1100141748 Arries, A (Aldavian) 1 1.0 1 0 0 100.0 1522.2 425.0 1947.2 View list
20 1100103503 Arendse, Q (Quinwinne) 1 1.0 1 0 0 100.0 1568.1 425.0 1993.1 View list