Chess South Africa
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Chess South Africa
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:
2024/04/21 (57 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1223.8
Current Weighted rating
1203.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1223.8
Current highest rating achieved
1223.8
Current floor (min rating allowed)
723.8
Current K-factor
36
Games played this month
0
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)
±160.3
Current Raw change used (final)
0.0
Projected new Raw rating
1223.8
Projected new Weighed rating
1107.0
Projected new Weighted performance
935.5
Projected new final Raw rating (if new WP > new Raw)
1223.8
Projected new highest rating
1223.8
Projected new floor
723.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1223.8
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 rating
1221.2
Current Weighted rating
1203.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1221.2
Current highest rating achieved
1221.2
Current floor (min rating allowed)
721.2
Current K-factor
36
Games played this month
0
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)
±160.9
Current Raw change used (final)
0.0
Projected new Raw rating
1221.2
Projected new Weighed rating
1107.2
Projected new Weighted performance
734.7
Projected new final Raw rating (if new WP > new Raw)
1221.2
Projected new highest rating
1221.2
Projected new floor
721.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1221.2
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 rating
1195.0
Current Weighted rating
1196.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1196.3
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
s
Games played this month
0
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)
±167.0
Current Raw change used (final)
0.0
Projected new Raw rating
1195.0
Projected new Weighed rating
1100.5
Projected new Weighted performance
352.4
Projected new final Raw rating (if new WP > new Raw)
1195.0
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1195.0
Projected effective change (new Official - current Official)
-1.3
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 rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
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 rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
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
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
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
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
12
6
0
6
6.0
50.0
0.0
1264.6
1264.6
White
7
3
0
4
3.0
42.9
-60.7
1268.1
1207.4
Black
5
3
0
2
3.0
60.0
85.0
1259.8
1344.8
Standard
All
12
6
0
6
6.0
50.0
0.0
1264.6
1264.6
White
7
3
0
4
3.0
42.9
-60.7
1268.1
1207.4
Black
5
3
0
2
3.0
60.0
85.0
1259.8
1344.8
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
18
9
0
9
9.0
50.0
0.0
1240.6
1240.6
White
10
5
0
5
5.0
50.0
0.0
1252.9
1252.9
Black
8
4
0
4
4.0
50.0
0.0
1225.2
1225.2
Standard
All
12
6
0
6
6.0
50.0
0.0
1264.6
1264.6
White
7
3
0
4
3.0
42.9
-60.7
1268.1
1207.4
Black
5
3
0
2
3.0
60.0
85.0
1259.8
1344.8
Rapid
All
6
3
0
3
3.0
50.0
0.0
1192.5
1192.5
White
3
2
0
1
2.0
66.7
141.7
1217.6
1359.2
Black
3
1
0
2
1.0
33.3
-141.7
1167.5
1025.8
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1150147876
Soobramoney, H (Hezron)
2
0.0
0
0
2
0.0
1199.0
-425.0
774.0
View list
2
1150154325
Chetty, R (Reece)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
2150302481
Govender, S (Suravi)
1
1.0
1
0
0
100.0
1199.0
425.0
1624.0
View list
4
2140156653
Gordon, Z (Zoe-Lee)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
1130302488
Mehlomakhulu, M (Mnqobi)
1
1.0
1
0
0
100.0
1199.0
425.0
1624.0
View list
6
1160149315
Mathew, N (Nathan)
1
1.0
1
0
0
100.0
1199.0
425.0
1624.0
View list
7
1150301920
Maharaj, V (Vihar)
1
1.0
1
0
0
100.0
1199.0
425.0
1624.0
View list
8
1150301924
Sibiya, T (Thingolwenkosazane)
1
1.0
1
0
0
100.0
1199.0
425.0
1624.0
View list
9
2160149281
Rooplal-Govender, A (Aditi)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
10
2160152945
Ramsurup, M (Mia)
1
1.0
1
0
0
100.0
1199.0
425.0
1624.0
View list
11
1150134491
Soojay, J (Josiah)
1
0.0
0
0
1
0.0
1199.0
-425.0
774.0
View list
12
1150162408
Ngcobo, I (Iyana)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
13
2140147850
Morris, A (Alessandra-Jane)
1
0.0
0
0
1
0.0
1199.0
-425.0
774.0
View list
14
2140138017
Magudulela, B (Busisiwe)
1
0.0
0
0
1
0.0
1199.0
-425.0
774.0
View list
15
1120107291
Jugree, A (Abhay)
1
0.0
0
0
1
0.0
1199.0
-425.0
774.0
View list
16
1140147834
Dady-Grant, C (Chase)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
17
1140135925
Allen, J (Joshua)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list