Chess South Africa Ratings Database

PLAYER PAGE

Personal

Chang, O (Oliver)

Chess SA id

1150162131

FIDE id

Date of birth

2015-05-16 (U12)

Gender

Male

Region

Ethekwini (KED)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1280	1238.6	1295.4	1200
Raw rating	1280	1238.6	1295.4	1200
Weighted rating	1270.7	1234.8	1280.3	1200
Weighted performance	1096.5	0	0	0
Floor	786.1	743.9	795.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	147.9	156.9	144.7	165.8
Highest rating	1286.1 2024-10-01	1243.9 2024-10-01	1380 2024-06-01	1200 2018-10-01
Highest raw rating	1286.1 2024-10-01	1243.9 2024-10-01	1295.4 2024-08-01	1200 2024-03-01
Highest weighted rating	1265.6 2025-08-01	1232.5 2025-08-01	1273.3 2025-08-01	1200 2018-10-01
Highest weighted performance	1273.8 2024-09-01	1231.3 2024-09-01	1380 2024-06-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1280	1238.6	1295.4	1200
Analysis
Rating	1280	1238.6	1295.4	1200
Raw rating	1280	1238.6	1295.4	1200
Weighted rating	1270.7	1234.8	1280.3
Weighted performance	1096.5	0	0
K-factor	36	36	36	36
Floor	786.1	743.9	795.4	700
Max/Min rating change allowed	147.9	156.9	144.7	165.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1280	1238.6	1295.4	1200
New weighted rating	1272.8	1235.8	1283.4	1200
New weighted performance	1096	0	0	0
Temp new rating	1280	1238.6	1295.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1280	1238.6	1295.4	1200
New K-factor	36	36	36	36
New floor	786.1	743.9	795.4	700

Item	Main	Standard	Rapid
	0	0	0
	3	3	0
	25	18	7
	6	0	6
	0	0	0
	0	0	0
History	34	21	13

Games since
	Main 28	Standard 21		Rapid 7		Blitz 0
Gender	Male
Age group	U12
Region	Ethekwini (KED)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	3	1.5	50	0	1216	1216
Standard	3	1.5	50	0	1216	1216
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	34	19.5	57.35	62.5	1244.4	1306.9
Standard	21	11.5	54.76	40.5	1244.4	1284.9
Rapid	13	8	61.54	98.1	1244.4	1342.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1280	1238.6	1295.4	1200
2025-09-01	1280	1238.6	1295.4	1200
2025-08-01	1280	1238.6	1295.4	1200
2025-07-01	1280	1238.6	1295.4	1200
2025-06-01	1280	1238.6	1295.4	1200
2025-05-01	1280	1238.6	1295.4	1200
2025-04-01	1280	1238.6	1295.4	1200
2025-03-01	1286.1	1243.9	1295.4	1200
2025-02-01	1286.1	1243.9	1295.4	1200
2025-01-01	1286.1	1243.9	1295.4	1200
2024-12-01	1286.1	1243.9	1295.4	1200
2024-11-01	1286.1	1243.9	1295.4	1200
2024-10-01	1286.1	1243.9	1295.4	1200
2024-09-01	1266.4	1221.2	1295.4	1200
2024-08-01	1266.4	1221.2	1295.4	1200
2024-07-01	1223.8	1221.2	1195	1200
2024-06-01	1223.8	1221.2	1195	1200
2024-08-01	1223.8	1221.2	1195	1200
2024-04-01	1199	1200	1195	1200
2024-03-01	1199	1200	1195	1200
2024-02-01	1199	1200	1195	1200
2024-01-01	1199	1200	1195	1200
2023-12-01	1199	1200	1195	1200
2023-11-01	1199	1200	1195	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 KZN Provincial Trials (U12)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	0	0	No	Analysis
2	2025 ECA 1st Youth Trials (D)	2025-03-08	2025-03-09	Standard	Ethekwini (KED)	6	3	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 KZN Provincial Trials (U12)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	0	0	No	Analysis
2	2025 ECA 1st Youth Trials (D)	2025-03-08	2025-03-09	Standard	Ethekwini (KED)	6	3	1.5	Yes	Analysis
3	2024 ECA 3rd Youth Trials (E)	2024-08-31	2024-09-01	Standard	Ethekwini (KED)	6	6	4	Yes	Analysis
4	Durban & Districts Chess Challenge 2024 (U8+U10)	2024-06-08	2024-06-08	Rapid	Ethekwini (KED)	7	7	5	Yes	Analysis
5	2024 Ethekwini Open (B)	2024-04-20	2024-04-21	Standard	Ethekwini (KED)	6	6	2	Yes	Analysis
6	2024 ECA 1st Youth Trials (U10)	2024-04-13	2024-04-14	Standard	Ethekwini (KED)	6	6	4	Yes	Analysis
7	Crawford La lucia Rapid Chess Tournament 2023 (Junior)	2023-07-22	2023-07-22	Rapid	Ethekwini (KED)	6	6	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 1
		Opponent Jones, S (Samuel Mark)				Opponent Singh, S (Suveer)
2	3	Tournament Crawford La lucia Rapid Chess Tournament 2023				Tournament Crawford La lucia Rapid Chess Tournament 2023
		date 2023-07-22	rnd 1	type Rapid	result 1	date 2023-07-22	rnd 3	type Rapid	result 1
		Opponent Chetty, R (Reece)				Opponent Gordon, Z (Zoe-Lee)
3	2	Tournament 2024 ECA 3rd Youth Trials				Tournament 2025 ECA 1st Youth Trials
		date 2024-09-01	rnd 6	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 0.5
		Opponent Cason, D (Dante)				Opponent Mkhize, E (Esethu)

#	Games	Start				End
1	2	Tournament 2024 ECA 3rd Youth Trials				Tournament 2025 ECA 1st Youth Trials
		date 2024-09-01	rnd 6	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 0.5
		Opponent Cason, D (Dante)				Opponent Mkhize, E (Esethu)
2	2	Tournament 2024 ECA 3rd Youth Trials				Tournament 2024 ECA 3rd Youth Trials
		date 2024-08-31	rnd 1	type Standard	result 1	date 2024-08-31	rnd 2	type Standard	result 1
		Opponent Tahuwona, J (Jayden)				Opponent Mohanparasadh, D (Darsh)
3	2	Tournament 2024 ECA 1st Youth Trials				Tournament 2024 ECA 1st Youth Trials
		date 2024-04-14	rnd 4	type Standard	result 1	date 2024-04-14	rnd 5	type Standard	result 1
		Opponent Mathew, N (Nathan)				Opponent Ramsurup, M (Mia)

#	Games	Start				End
1	4	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 1
		Opponent Jones, S (Samuel Mark)				Opponent Singh, S (Suveer)
2	3	Tournament Crawford La lucia Rapid Chess Tournament 2023				Tournament Crawford La lucia Rapid Chess Tournament 2023
		date 2023-07-22	rnd 1	type Rapid	result 1	date 2023-07-22	rnd 3	type Rapid	result 1
		Opponent Chetty, R (Reece)				Opponent Gordon, Z (Zoe-Lee)
3	1	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 6	type Rapid	result 1	date 2024-06-08	rnd 6	type Rapid	result 1
		Opponent Boniaszczuk, A (Aleksander)				Opponent Boniaszczuk, A (Aleksander)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 1
		Opponent Jones, S (Samuel Mark)				Opponent Singh, S (Suveer)
2	3	Tournament Crawford La lucia Rapid Chess Tournament 2023				Tournament Crawford La lucia Rapid Chess Tournament 2023
		date 2023-07-22	rnd 1	type Rapid	result 1	date 2023-07-22	rnd 3	type Rapid	result 1
		Opponent Chetty, R (Reece)				Opponent Gordon, Z (Zoe-Lee)
3	2	Tournament 2024 ECA 3rd Youth Trials				Tournament 2024 ECA 3rd Youth Trials
		date 2024-08-31	rnd 1	type Standard	result 1	date 2024-08-31	rnd 2	type Standard	result 1
		Opponent Tahuwona, J (Jayden)				Opponent Mohanparasadh, D (Darsh)

#	Games	Start				End
1	2	Tournament 2024 ECA 3rd Youth Trials				Tournament 2024 ECA 3rd Youth Trials
		date 2024-08-31	rnd 1	type Standard	result 1	date 2024-08-31	rnd 2	type Standard	result 1
		Opponent Tahuwona, J (Jayden)				Opponent Mohanparasadh, D (Darsh)
2	2	Tournament 2024 ECA 1st Youth Trials				Tournament 2024 ECA 1st Youth Trials
		date 2024-04-14	rnd 4	type Standard	result 1	date 2024-04-14	rnd 5	type Standard	result 1
		Opponent Mathew, N (Nathan)				Opponent Ramsurup, M (Mia)
3	2	Tournament 2024 ECA 1st Youth Trials				Tournament 2024 ECA 1st Youth Trials
		date 2024-04-13	rnd 1	type Standard	result 1	date 2024-04-13	rnd 2	type Standard	result 1
		Opponent Maharaj, V (Vihar)				Opponent Sibiya, T (Thingolwenkosazane)

#	Games	Start				End
1	4	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 1
		Opponent Jones, S (Samuel Mark)				Opponent Singh, S (Suveer)
2	3	Tournament Crawford La lucia Rapid Chess Tournament 2023				Tournament Crawford La lucia Rapid Chess Tournament 2023
		date 2023-07-22	rnd 1	type Rapid	result 1	date 2023-07-22	rnd 3	type Rapid	result 1
		Opponent Chetty, R (Reece)				Opponent Gordon, Z (Zoe-Lee)
3	1	Tournament Durban & Districts Chess Challenge 2024				Tournament Durban & Districts Chess Challenge 2024
		date 2024-06-08	rnd 6	type Rapid	result 1	date 2024-06-08	rnd 6	type Rapid	result 1
		Opponent Boniaszczuk, A (Aleksander)				Opponent Boniaszczuk, A (Aleksander)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Soobramoney ,H (Hezron)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Soobramoney ,H (Hezron)	2	1425.7	1000.7	2	1401	1000.7	0	0	0	0	0	0
2	Soojay ,J (Josiah)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Soojay ,J (Josiah)	2	1315.5	890.5	2	1281.6	890.5	0	0	0	0	0	0
3	Varghese ,S (Steven)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Varghese ,S (Steven)	2	1326.9	901.9	1	1249.4	901.9	1	1397.2	901.9	0	0	0
4	Mohanparasadh ,D (Darsh)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mohanparasadh ,D (Darsh)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Jugree ,A (Abhay)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Jugree ,A (Abhay)	1	1447.5	1022.5	1	1444.3	1022.5	0	0	0	0	0	0
6	Mathew ,N (Nathan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mathew ,N (Nathan)	1	1185	1610	1	1113.2	1610	0	0	0	0	0	0
7	Tahuwona ,J (Jayden)	1	1	425	1	1	425	0	0	0	0	0	0
7	Tahuwona ,J (Jayden)	1	1139.8	1564.8	1	1112.8	1564.8	0	0	0	0	0	0
8	Mehlomakhulu ,M (Mnqobi)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mehlomakhulu ,M (Mnqobi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Cason ,D (Dante)	1	1	425	1	1	425	0	0	0	0	0	0
9	Cason ,D (Dante)	1	1122.6	1547.6	1	1074.4	1547.6	0	0	0	0	0	0
10	Morris ,A (Alessandra-Jane)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Morris ,A (Alessandra-Jane)	1	1124.3	699.3	1	1121.2	699.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Chang, O (Oliver)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms