Player Page

Chang, O (Oliver)
Dob: 2015/05/16 (U10)
Gender: Male
Chess SA id: 1150162131
FIDE id:
Region: Ethekwini (KED)
Citizen: RSA
Title(s):
Last active: 2024/09/01 (84 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 rating1286.1
Current Weighted rating1227.1
Current Weighted performance1236.0
Current official/published rating (highest between Raw, WR and WP)1286.1
Current highest rating achieved1286.1
Current floor (min rating allowed)786.1
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)±146.7
Current Raw change used (final)0.0
Projected new Raw rating1286.1
Projected new Weighed rating1129.9
Projected new Weighted performance1236.0
Projected new final Raw rating (if new WP > new Raw)1286.1
Projected new highest rating1286.1
Projected new floor786.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1286.1
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 rating1243.9
Current Weighted rating1213.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1243.9
Current highest rating achieved1243.9
Current floor (min rating allowed)743.9
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)±155.8
Current Raw change used (final)0.0
Projected new Raw rating1243.9
Projected new Weighed rating1117.3
Projected new Weighted performance977.9
Projected new final Raw rating (if new WP > new Raw)1243.9
Projected new highest rating1243.9
Projected new floor743.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1243.9
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 rating1295.4
Current Weighted rating1225.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1295.4
Current highest rating achieved1295.4
Current floor (min rating allowed)795.4
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)±144.7
Current Raw change used (final)0.0
Projected new Raw rating1295.4
Projected new Weighed rating1128.5
Projected new Weighted performance726.5
Projected new final Raw rating (if new WP > new Raw)1295.4
Projected new highest rating1295.4
Projected new floor795.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1295.4
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
4 2024 ECA 3rd Youth Trials (E) 2024/08/31 2024/09/01 Ethekwini (KED) Standard 60 0.83 6 6 4.0 1266.4 1221.2 Analysis
3 Durban & Districts Chess Challenge 2024 (U8+U10) 2024/06/08 2024/06/08 Ethekwini (KED) Rapid 30 0.60 7 7 5.0 1223.8 1195.0 Analysis
2 2024 Ethekwini Open (B) 2024/04/20 2024/04/21 Ethekwini (KED) Standard 60 0.83 6 6 2.0 1199.0 1200.0 Analysis
1 2024 ECA 1st Youth Trials (U10) 2024/04/13 2024/04/14 Ethekwini (KED) Standard 60 0.83 6 6 4.0 1199.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 2024 ECA 3rd Youth Trials (E) 2024/08/31 2024/09/01 Ethekwini (KED) Standard 60 0.83 6 6 4.0 1266.4 1221.2 Analysis
4 Durban & Districts Chess Challenge 2024 (U8+U10) 2024/06/08 2024/06/08 Ethekwini (KED) Rapid 30 0.60 7 7 5.0 1223.8 1195.0 Analysis
3 2024 Ethekwini Open (B) 2024/04/20 2024/04/21 Ethekwini (KED) Standard 60 0.83 6 6 2.0 1199.0 1200.0 Analysis
2 2024 ECA 1st Youth Trials (U10) 2024/04/13 2024/04/14 Ethekwini (KED) Standard 60 0.83 6 6 4.0 1199.0 1200.0 Analysis
1 Crawford La lucia Rapid Chess Tournament 2023 (Junior) 2023/07/22 2023/07/22 Ethekwini (KED) Rapid 25 0.54 6 6 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 25 15 0 10 15.0 60.0 85.0 1260.3 1345.3
White 14 8 0 6 8.0 57.1 60.7 1267.0 1327.7
Black 11 7 0 4 7.0 63.6 115.9 1251.8 1367.7
Standard All 18 10 0 8 10.0 55.6 47.2 1249.2 1296.4
White 10 6 0 4 6.0 60.0 85.0 1237.6 1322.6
Black 8 4 0 4 4.0 50.0 0.0 1263.6 1263.6
Rapid All 7 5 0 2 5.0 71.4 182.1 1288.9 1471.1
White 4 2 0 2 2.0 50.0 0.0 1340.5 1340.5
Black 3 3 0 0 3.0 100.0 425.0 1220.1 1645.1
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 31 18 0 13 18.0 58.1 68.5 1247.2 1315.7
White 17 10 0 7 10.0 58.8 75.0 1258.3 1333.3
Black 14 8 0 6 8.0 57.1 60.7 1233.7 1294.4
Standard All 18 10 0 8 10.0 55.6 47.2 1249.2 1296.4
White 10 6 0 4 6.0 60.0 85.0 1237.6 1322.6
Black 8 4 0 4 4.0 50.0 0.0 1263.6 1263.6
Rapid All 13 8 0 5 8.0 61.5 98.1 1244.4 1342.5
White 7 4 0 3 4.0 57.1 60.7 1287.8 1348.5
Black 6 4 0 2 4.0 66.7 141.7 1193.8 1335.5
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1150147876 Soobramoney, H (Hezron) 2 0.0 0 0 2 0.0 1199.0 -425.0 774.0 View list
2 1150134491 Soojay, J (Josiah) 2 0.0 0 0 2 0.0 1232.7 -425.0 807.7 View list
3 1150142523 Varghese, S (Steven) 2 0.0 0 0 2 0.0 1245.1 -425.0 820.1 View list
4 1150154325 Chetty, R (Reece) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1160150857 Cason, D (Dante) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list
6 1160306456 Boniaszczuk, A (Aleksander) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
7 1150306468 Jones, S (Samuel Mark) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
8 2150302481 Govender, S (Suravi) 1 1.0 1 0 0 100.0 1199.0 425.0 1624.0 View list
9 2140156653 Gordon, Z (Zoe-Lee) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1150310824 Mohanparasadh, D (Darsh) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list
11 1130302488 Mehlomakhulu, M (Mnqobi) 1 1.0 1 0 0 100.0 1199.0 425.0 1624.0 View list
12 1160149315 Mathew, N (Nathan) 1 1.0 1 0 0 100.0 1199.0 425.0 1624.0 View list
13 1150301920 Maharaj, V (Vihar) 1 1.0 1 0 0 100.0 1199.0 425.0 1624.0 View list
14 2160149281 Rooplal-Govender, A (Aditi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 2150304986 Reddy, T (Tara) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list
16 2160152945 Ramsurup, M (Mia) 1 1.0 1 0 0 100.0 1199.0 425.0 1624.0 View list
17 2150153386 Power, A (Amber) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
18 1150301924 Sibiya, T (Thingolwenkosazane) 1 1.0 1 0 0 100.0 1199.0 425.0 1624.0 View list
19 1950109946 Singh, S (Suveer) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
20 1150147699 Tahuwona, J (Jayden) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list