Player Page

Chang, S (Sebastian)
Dob: 2006/09/13 (U20)
Gender: Male
Chess SA id: 106059113
FIDE id:
Region: Buffalo City (EBC)
Citizen: RSA
Title(s):
Last active: 2024/02/24 (83 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
Curent Raw rating1621.8
Curent Weighted rating1598.0
Curent Weighted performance1559.3
Current official/published rating (highest between Raw, WR and WP)1621.8
Current floor (min rating allowed)1121.8
Current highest rating achieved1621.8
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)±90.9
Current Raw change used (final)0.0
Projected new Raw rating1621.8
Projected new Weighed rating1600.6
Projected new Weighted performance1559.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1621.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1621.8
Projected new floor1121.8
Projected new K-facor28
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 rating1623.9
Curent Weighted rating1595.4
Curent Weighted performance1558.2
Current official/published rating (highest between Raw, WR and WP)1623.9
Current floor (min rating allowed)1123.9
Current highest rating achieved1623.9
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)±90.6
Current Raw change used (final)0.0
Projected new Raw rating1623.9
Projected new Weighed rating1598.5
Projected new Weighted performance1558.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1623.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1623.9
Projected new floor1123.9
Projected new K-facor28
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 rating1422.6
Curent Weighted rating1312.1
Curent Weighted performance962.7
Current official/published rating (highest between Raw, WR and WP)1422.6
Current floor (min rating allowed)922.6
Current highest rating achieved1422.6
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)±120.8
Current Raw change used (final)0.0
Projected new Raw rating1422.6
Projected new Weighed rating1323.5
Projected new Weighted performance962.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1422.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1422.6
Projected new floor922.6
Projected new K-facor32
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 rating1369.3
Curent Weighted rating1229.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1369.3
Current floor (min rating allowed)922.6
Current highest rating achieved1369.3
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)±130.3
Current Raw change used (final)0.0
Projected new Raw rating1369.3
Projected new Weighed rating1243.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1369.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1369.3
Projected new floor922.6
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Grey College Team Championship 2024 (A) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 4.0 1590.9 1586.7 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
63 Grey College Team Championship 2024 (A) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 4.0 1590.9 1586.7 Analysis
62 BCM Chess Clubs League 2023 (Premier) 2023/09/09 2023/09/09 Buffalo City (EBC) Standard 90 0.94 5 1 0.0 1609.3 1606.6 Analysis
61 2023 African Youth Chess Championship 2023/09/02 2023/09/08 Egypt (EGY) Standard 120 1.00 9 9 4.0 1609.3 1606.6 Analysis
60 4th BC HS Trials 2023 (U18A-Adult) 2023/08/26 2023/08/26 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1613.3 1611.1 Analysis
59 2023 South African Junior Closed Chess Championships (U18 Open) 2023/03/31 2023/04/04 Chess South Africa (CSA) Standard 120 1.00 9 9 4.5 1577.5 1577.5 Analysis
58 3rd Vikings Champs 2023 (Prestige) 2023/03/25 2023/03/25 Buffalo City (EBC) Standard 60 0.83 5 5 3.5 1549.1 1543.3 Analysis
57 2nd Master Vikings 2023 2023/02/23 2023/02/23 Buffalo City (EBC) Standard 60 0.83 5 5 2.0 1547.5 1542.7 Analysis
56 Grey College Team Championship 2023 (A) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 5 4.5 1547.5 1542.7 Analysis
55 2022 South African Junior Wild Card Chess Championships (U18+U20 Open) 2022/12/09 2022/12/12 4 Knights (4K) Standard 120 1.00 7 7 3.5 1580.5 1571.5 Analysis
54 2022 South African Junior Team Chess Championships (U18 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 6.0 1580.5 1571.5 Analysis
53 Slum Knights 5th 2022 (Open) 2022/10/22 2022/10/22 Buffalo City (EBC) Standard 60 0.83 5 5 3.0 1583.7 1572.8 Analysis
52 Slum Knights 3rd Open 2022 (A) 2022/09/18 2022/09/18 Buffalo City (EBC) Rapid 35 0.66 5 4 2.5 1579.7 1231.9 Analysis
51 Slum Knights 2022 (A) 2022/08/06 2022/08/06 Buffalo City (EBC) Rapid 35 0.66 5 5 3.0 1577.6 1202.4 Analysis
50 2022 African Youth Chess Championships 2022/07/03 2022/07/09 Zambia (ZAM) Standard 150 1.00 9 9 6.5 1544.3 1537.6 Analysis
49 BC Chess Trials 5 of 5 2022 (A) 2022/06/11 2022/06/11 Buffalo City (EBC) Rapid 12 0.33 10 10 6.5 1537.3 1139.2 Analysis
48 BC Chess 4th Border Trials 2022 (A) 2022/05/21 2022/05/21 Buffalo City (EBC) Rapid 12 0.33 10 10 5.0 1545.5 1166.0 Analysis
47 South African Junior Closed Chess Championships 2022 (U16 Open) 2022/03/28 2022/04/02 Chess South Africa (CSA) Standard 120 1.00 11 11 7.0 1466.1 1457.6 Analysis
46 Grey College Team Championship 2022 (A) 2022/02/18 2022/02/19 Mangaung (FMB) Standard 60 0.83 5 5 4.0 1465.6 1455.0 Analysis
45 Big Buffalo Swiss Open and Junior Closed 2021 2021/09/11 2021/09/11 Buffalo City (EBC) Standard 63 0.84 5 5 2.0 1485.0 1473.6 Analysis
44 Vikings Closed Swiss March 2020 2020/03/07 2020/03/07 Buffalo City (EBC) Standard 65 0.85 5 5 2.0 1499.4 1487.0 Analysis
1234
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 3 2 0 4.0 80.0 255.0 1568.5 1823.5
White 3 1 2 0 2.0 66.7 141.7 1580.7 1722.3
Black 2 2 0 0 2.0 100.0 425.0 1550.2 1975.2
Standard All 5 3 2 0 4.0 80.0 255.0 1568.5 1823.5
White 3 1 2 0 2.0 66.7 141.7 1580.7 1722.3
Black 2 2 0 0 2.0 100.0 425.0 1550.2 1975.2
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 380 207 45 128 229.5 60.4 88.4 1292.3 1380.7
White 187 108 24 55 120.0 64.2 120.5 1299.0 1419.4
Black 193 99 21 73 109.5 56.7 57.3 1285.9 1343.1
Standard All 287 157 35 95 174.5 60.8 91.8 1273.6 1365.4
White 145 83 18 44 92.0 63.4 114.3 1277.3 1391.6
Black 142 74 17 51 82.5 58.1 68.8 1269.9 1338.7
Rapid All 77 40 10 27 45.0 58.4 71.8 1348.4 1420.2
White 35 20 6 9 23.0 65.7 133.6 1373.8 1507.4
Black 42 20 4 18 22.0 52.4 20.2 1327.2 1347.5
Blitz All 16 10 0 6 10.0 62.5 106.3 1357.8 1464.1
White 7 5 0 2 5.0 71.4 182.1 1374.0 1556.1
Black 9 5 0 4 5.0 55.6 47.2 1345.3 1392.5
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 106065282 Meise, K (Keagen) 14 0.5 0 1 13 3.6 1357.6 -394.6 962.9 View list
2 105065320 Sparg, N (Nathan) 11 2.5 2 1 8 22.7 1362.7 -231.8 1130.9 View list
3 1060104008 Totose, Z (Zimi) 10 1.5 0 3 7 15.0 1438.3 -297.5 1140.8 View list
4 106065267 Becker, M (Matthew) 9 6.0 5 2 2 66.7 1299.7 141.7 1441.3 View list
5 104043328 Xongwana, S (Sahlulelo) 9 5.5 5 1 3 61.1 1183.0 94.4 1277.5 View list
6 206044986 Wang, P-S (Pei-Shan) 8 2.0 2 0 6 25.0 1304.6 -212.5 1092.1 View list
7 104054272 Ou, J-Q (Jing-Qian) 7 6.0 6 0 1 85.7 1209.5 303.6 1513.0 View list
8 1060104005 Ndlebe, A (Anda) 7 2.0 2 0 5 28.6 1413.4 -182.1 1231.3 View list
9 110088674 Chang, S (Samuel) 6 6.0 6 0 0 100.0 1362.8 425.0 1787.8 View list
10 1070099423 Lin, C (Chenyi) 6 4.0 3 2 1 66.7 1404.2 141.7 1545.9 View list
11 1070104009 Sibanda, T (Takudzwa) 6 3.0 3 0 3 50.0 1407.2 0.0 1407.2 View list
12 1960104007 Ncube, R (Romeo) 6 2.0 2 0 4 33.3 1267.0 -141.7 1125.3 View list
13 178014094 Jikijela, M (Musa) 6 1.0 0 2 4 16.7 1312.9 -283.3 1029.5 View list
14 105054349 Wang, I (Ikai) 5 4.5 4 1 0 90.0 1318.5 340.0 1658.5 View list
15 205056862 Becker, R (Robyn) 5 3.0 2 2 1 60.0 1215.2 85.0 1300.2 View list
16 1990106168 Mdlatu, L (Lilitha) 5 2.0 2 0 3 40.0 1380.1 -85.0 1295.1 View list
17 106078250 De Villiers, E (Ethan) 4 3.5 3 1 0 87.5 1315.9 318.8 1634.6 View list
18 103088769 Rosso, T (Tyler) 4 2.0 2 0 2 50.0 1155.4 0.0 1155.4 View list
19 207044978 August, T (Thimna) 3 3.0 3 0 0 100.0 1265.5 425.0 1690.5 View list
20 104056000 Dilima, A (Anani) 3 3.0 3 0 0 100.0 1189.8 425.0 1614.8 View list