Chess South Africa Ratings Database

PLAYER PAGE

Personal

Chang, C (Caelem)

Chess SA id

1160300802

FIDE id

Date of birth

2016-07-12 (U10)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

39.1

Junior GPX Points

1237.8

Item	Main	Standard	Rapid	Blitz
Rating	1357.4	1350.3	1254.1	1200
Raw rating	1356.8	1350.3	1254.1	1200
Weighted rating	1228.1	1227.9	1201.5	1200
Weighted performance	1357.4	1326.9	0	0
Floor	856.8	850.3	754.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	132.6	133.8	153.5	165.8
Highest rating	1357.4 2025-09-30	1350.3 2025-09-30	1254.1 2025-04-01	1200 2024-04-01
Highest raw rating	1356.8 2025-09-30	1350.3 2025-09-30	1254.1 2025-04-01	1200 2024-04-01
Highest weighted rating	1279 2024-11-01	1227.9 2025-09-30	1254.1 2024-11-01	1200 2024-04-01
Highest weighted performance	1357.4 2025-09-30	1326.9 2025-09-30	1200 2024-12-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.6	0	0	0
New rating	1356.8	1350.3	1254.1	1200
Analysis
Rating	1357.4	1350.3	1254.1	1200
Raw rating	1356.8	1350.3	1254.1	1200
Weighted rating	1228.1	1227.9	1201.5
Weighted performance	1357.4	1326.9	0
K-factor	36	36	36	36
Floor	856.8	850.3	754.1	700
Max/Min rating change allowed	132.6	133.8	153.5	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	1356.8	1350.3	1254.1	1200
New weighted rating	1240	1238.7	1206.8	1200
New weighted performance	1356	1325.5	0	0
Temp new rating	1356.8	1350.3	1254.1	1200
Temp new rating +/-	-0.6	0	0	0
Final new rating +/-	-0.6	0	0	0
New rating	1356.8	1350.3	1254.1	1200
New K-factor	36	36	36	36
New floor	856.8	850.3	754.1	700

Item	Main	Standard	Rapid
	0	0	0
	39	27	12
	18	5	13
	0	0	0
	0	0	0
	0	0	0
History	57	32	25

Games since
	Main 57	Standard 32		Rapid 25		Blitz 0
Gender	Male
Age group	U10
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2591		819		338
Male	2103		620		269
U10	193		54		17
U10 Male	162		39		14
Standard
	RSA		Province		Region
Overall	2560		719		305
Male	2066		534		236
U10	194		54		17
U10 Male	166		41		14
Rapid
	RSA		Province		Region
Overall	1321		671		263
Male	1059		520		226
U10	118		62		21
U10 Male	93		48		17
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	39	23.5	60.26	87.2	1283.6	1370.8
Standard	27	16	59.26	78.7	1283.6	1362.3
Rapid	12	7.5	62.5	106.2	1283.5	1389.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	57	29	50.88	7.5	1262.8	1270.2
Standard	32	18.5	57.81	66.4	1263.1	1329.5
Rapid	25	10.5	42	-68	1262.4	1194.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1356.8	1350.3	1254.1	1200
2025-09-01	1286.9	1262.5	1254.1	1200
2025-08-01	1279	1249.2	1254.1	1200
2025-07-01	1279	1249.2	1254.1	1200
2025-06-01	1279	1249.2	1254.1	1200
2025-05-01	1254	1212.1	1254.1	1200
2025-04-01	1254	1212.1	1254.1	1200
2025-03-01	1224	1199.1	1237.4	1200
2025-02-01	1171.4	1198.1	1150.7	1200
2025-01-01	1147.3	1188	1114	1200
2024-12-01	1147.6	1200	1114	1200
2024-11-01	1147.6	1200	1114	1200
2024-10-01	1167	1200	1140	1200
2024-09-01	1167	1200	1140	1200
2024-08-01	1167	1200	1140	1200
2024-07-01	1167	1200	1140	1200
2024-06-01	1167	1200	1140	1200
2024-08-01	1169.8	1200	1142.8	1200
2024-04-01	1169.8	1200	1142.8	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	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	Western Cape Schools - Top Schools 2025 (U9)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
2	Cape Town Metro North Top Schools 2025 (U9)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	3	2	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	Steinitz Festival 2025 (U10)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	6	3	Yes	Analysis
5	CT Metro Schools Individual Closed 2025 (U9 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
6	Laerskool Welgemoed Rapid 2025 (U10)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
7	CT Metro North Schools Chess Individual Trials 2025 (U9 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U9)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
2	Cape Town Metro North Top Schools 2025 (U9)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	3	2	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	Steinitz Festival 2025 (U10)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	6	3	Yes	Analysis
5	CT Metro Schools Individual Closed 2025 (U9 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
6	Laerskool Welgemoed Rapid 2025 (U10)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
7	CT Metro North Schools Chess Individual Trials 2025 (U9 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
8	2nd Strategize To Win Round-Robin Tournament ACL 2024 (J)	2024-12-07	2024-12-07	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
9	Laerskool Welgemoed Rapid 2024 (U10)	2024-10-19	2024-10-19	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis
10	Steinitz Chess Festival 2024 (U10)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
11	Cape Town Open Rapid Chess Championship 2024 (U10)	2024-03-16	2024-03-16	Rapid	Cape Town (WCT)	6	3	0	Yes	Analysis

#	Games	Start				End
1	4	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent De Swardt, R (Rebecca)				Opponent Esnouf, N (Nathan)
2	4	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 1	type Rapid	result 1	date 2025-02-15	rnd 4	type Rapid	result 1
		Opponent Grieb, N (Nathan)				Opponent Erasmus, M (Migal)
3	3	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Devajee, R (Rania)				Opponent Visagie, P (Pee-Jay)

#	Games	Start				End
1	4	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent De Swardt, R (Rebecca)				Opponent Esnouf, N (Nathan)
2	3	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Devajee, R (Rania)				Opponent Visagie, P (Pee-Jay)
3	2	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Pharela, T (Tshabani)				Opponent Rens, D (Deauwin)

#	Games	Start				End
1	4	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 1	type Rapid	result 1	date 2025-02-15	rnd 4	type Rapid	result 1
		Opponent Grieb, N (Nathan)				Opponent Erasmus, M (Migal)
2	2	Tournament Laerskool Welgemoed Rapid 2025				Tournament Steinitz Festival 2025
		date 2025-02-15	rnd 6	type Rapid	result 1	date 2025-03-15	rnd 2	type Rapid	result 1
		Opponent Vazirgiantzikis, A (Andreas)				Opponent Botha, J (Johann Alexander)
3	2	Tournament Steinitz Chess Festival 2024				Tournament Steinitz Chess Festival 2024
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2024-05-11	rnd 3	type Rapid	result 1
		Opponent Magi, A (Aqhame Alizwa)				Opponent Von Hase, M (Manu)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent De Swardt, R (Rebecca)				Opponent Esnouf, N (Nathan)
2	3	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Devajee, R (Rania)				Opponent Visagie, P (Pee-Jay)
3	3	Tournament Laerskool Welgemoed Rapid 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-15	rnd 6	type Rapid	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Vazirgiantzikis, A (Andreas)				Opponent Beukes, C (Cullen)

#	Games	Start				End
1	4	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent De Swardt, R (Rebecca)				Opponent Esnouf, N (Nathan)
2	3	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Devajee, R (Rania)				Opponent Visagie, P (Pee-Jay)
3	2	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-02	rnd 6	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Pharela, T (Tshabani)				Opponent Rens, D (Deauwin)

#	Games	Start				End
1	2	Tournament Laerskool Welgemoed Rapid 2025				Tournament Steinitz Festival 2025
		date 2025-02-15	rnd 6	type Rapid	result 1	date 2025-03-15	rnd 2	type Rapid	result 1
		Opponent Vazirgiantzikis, A (Andreas)				Opponent Botha, J (Johann Alexander)
2	2	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 1	type Rapid	result 1	date 2025-02-15	rnd 2	type Rapid	result 1
		Opponent Grieb, N (Nathan)				Opponent Botha, J (Johann Alexander)
3	2	Tournament Steinitz Chess Festival 2024				Tournament Steinitz Chess Festival 2024
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2024-05-11	rnd 3	type Rapid	result 1
		Opponent Magi, A (Aqhame Alizwa)				Opponent Von Hase, M (Manu)

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	Zwartz ,Z (Zeke)	3	0	-425	1	0	-425	2	0	-425	0	0	0
1	Zwartz ,Z (Zeke)	3	1389.7	964.7	1	1362.1	964.7	2	1402.7	964.7	0	0	0
2	Faasen ,C (Charles)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Faasen ,C (Charles)	2	1374.9	949.9	2	1333.9	949.9	0	0	0	0	0	0
3	Wepener ,Y (Yannis)	2	1	0	2	1	0	0	0	0	0	0	0
3	Wepener ,Y (Yannis)	2	1248.8	1248.8	2	1224.6	1248.8	0	0	0	0	0	0
4	Vazirgiantzikis ,A (Andreas)	2	1	0	1	0	-425	1	1	425	0	0	0
4	Vazirgiantzikis ,A (Andreas)	2	1191.9	1191.9	1	1206.5	766.9	1	1186.2	1616.9	0	0	0
5	Botha ,J (Johann Alexander)	2	2	425	0	0	0	2	2	425	0	0	0
5	Botha ,J (Johann Alexander)	2	1320.2	1745.2	0	0	0	2	1307.2	1745.2	0	0	0
6	De Swardt ,R (Rebecca)	1	1	425	1	1	425	0	0	0	0	0	0
6	De Swardt ,R (Rebecca)	1	1439.8	1864.8	1	1493.1	1864.8	0	0	0	0	0	0
7	Visser ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Visser ,L (Luan)	1	1199.5	774.5	1	1199.6	774.5	0	0	0	0	0	0
8	Bruiners ,J (Jeanne)	1	1	425	1	1	425	0	0	0	0	0	0
8	Bruiners ,J (Jeanne)	1	1348.8	1773.8	1	1361	1773.8	0	0	0	0	0	0
9	Sattar ,Y (Yusuf)	1	1	425	1	1	425	0	0	0	0	0	0
9	Sattar ,Y (Yusuf)	1	1196.3	1621.3	1	1200	1621.3	0	0	0	0	0	0
10	Wyngaard ,A (Adam)	1	1	425	1	1	425	0	0	0	0	0	0
10	Wyngaard ,A (Adam)	1	1399.3	1824.3	1	1400.4	1824.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Chang, C (Caelem)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms