Chess South Africa Ratings Database

PLAYER PAGE

Personal

Yen, C (Christopher)

Chess SA id

1080190396

FIDE id

Date of birth

2008-05-09 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1237	1222.3	1218	1200
Raw rating	1237	1222.3	1218	1200
Weighted rating	1226.2	1222.3	1203.5	1200
Weighted performance	0	0	0	0
Floor	737	722.3	718	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.3	160.6	161.6	165.8
Highest rating	1372.7 2023-10-01	1373.5 2023-10-01	1218 2025-09-01	1200 2018-10-01
Highest raw rating	1237 2025-09-01	1222.3 2024-02-01	1218 2025-09-01	1200 2024-02-01
Highest weighted rating	1223.9 2025-09-01	1222.2 2025-08-01	1200.7 2025-09-01	1200 2018-10-01
Highest weighted performance	1372.7 2023-10-01	1373.5 2023-10-01	1211.2 2024-06-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1237	1222.3	1218	1200
Analysis
Rating	1237	1222.3	1218	1200
Raw rating	1237	1222.3	1218	1200
Weighted rating	1226.2	1222.3	1203.5
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	737	722.3	718	700
Max/Min rating change allowed	157.3	160.6	161.6	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	1237	1222.3	1218	1200
New weighted rating	1227.3	1222.3	1204.8	1200
New weighted performance	0	0	0	0
Temp new rating	1237	1222.3	1218	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1237	1222.3	1218	1200
New K-factor	36	36	36	36
New floor	737	722.3	718	700

Item	Main	Standard	Rapid
	0	0	0
	1	0	1
	3	0	3
	3	3	0
	0	0	0
	0	0	0
History	7	3	4

Games since
	Main 4	Standard 0		Rapid 4		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	1	1	100	425	1191.1	1616.1
Standard	0	0	0	0	0	0
Rapid	1	1	100	425	1191.1	1616.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	7	5	71.43	182.1	1206.4	1388.6
Standard	3	2	66.67	141.7	1220.8	1362.5
Rapid	4	3	75	212.5	1195.7	1408.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1237	1222.3	1218	1200
2025-09-30	1237	1222.3	1218	1200
2025-09-01	1237	1222.3	1218	1200
2025-08-01	1223.6	1222.3	1199.3	1200
2025-07-01	1223.6	1222.3	1199.3	1200
2025-06-01	1223.6	1222.3	1199.3	1200
2025-05-01	1223.6	1222.3	1199.3	1200
2025-04-01	1223.6	1222.3	1199.3	1200
2025-03-01	1223.6	1222.3	1199.3	1200
2025-02-01	1223.6	1222.3	1199.2	1200
2025-01-01	1223.6	1222.3	1198.6	1200
2024-12-01	1223.6	1222.3	1198.6	1200
2024-11-01	1223.6	1222.3	1198.6	1200
2024-10-01	1223.6	1222.3	1198.6	1200
2024-09-01	1223.6	1222.3	1198.6	1200
2024-08-01	1223.6	1222.3	1198.6	1200
2024-07-01	1223.6	1222.3	1198.6	1200
2024-09-01	1218.5	1222.3	1200	1200
2024-05-01	1218.5	1222.3	1200	1200
2024-04-01	1218.5	1222.3	1200	1200
2024-03-01	1218.5	1222.3	1200	1200
2024-02-01	1218.5	1222.3	1200	1200
2024-01-01	1218.5	1222.3	1200	1200
2023-12-01	1218.5	1222.3	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	JCC - SAHETI Chess League 2025	2025-05-12	2025-06-09	Rapid	Johannesburg Metro (GJM)	5	1	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JCC - SAHETI Chess League 2025	2025-05-12	2025-06-09	Rapid	Johannesburg Metro (GJM)	5	1	1	Yes	Analysis
2	JCC SAHETI High Schools League Round Robin 2024	2024-05-20	2024-06-10	Rapid	Johannesburg Metro (GJM)	7	3	2	Yes	Analysis
3	St Peters College Chess League 2023 (A)	2023-09-11	2023-10-23	Standard	Johannesburg Metro (GJM)	6	3	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament JCC SAHETI High Schools League Round Robin 2024				Tournament JCC - SAHETI Chess League 2025
		date 2024-05-20	rnd 2	type Rapid	result 1	date 2025-05-12	rnd 1	type Rapid	result 1
		Opponent Stathoulis, C (Constantinos John)				Opponent Kabwe, C (Chali)
2	2	Tournament St Peters College Chess League 2023				Tournament St Peters College Chess League 2023
		date 2023-10-02	rnd 3	type Standard	result 1	date 2023-10-09	rnd 4	type Standard	result 1
		Opponent Khandoo, J (Jiya)				Opponent Mahlatsi, R (Remothabetse)

#	Games	Start				End
1	2	Tournament St Peters College Chess League 2023				Tournament St Peters College Chess League 2023
		date 2023-10-02	rnd 3	type Standard	result 1	date 2023-10-09	rnd 4	type Standard	result 1
		Opponent Khandoo, J (Jiya)				Opponent Mahlatsi, R (Remothabetse)

#	Games	Start				End
1	3	Tournament JCC SAHETI High Schools League Round Robin 2024				Tournament JCC - SAHETI Chess League 2025
		date 2024-05-20	rnd 2	type Rapid	result 1	date 2025-05-12	rnd 1	type Rapid	result 1
		Opponent Stathoulis, C (Constantinos John)				Opponent Kabwe, C (Chali)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament JCC SAHETI High Schools League Round Robin 2024				Tournament JCC - SAHETI Chess League 2025
		date 2024-05-20	rnd 2	type Rapid	result 1	date 2025-05-12	rnd 1	type Rapid	result 1
		Opponent Stathoulis, C (Constantinos John)				Opponent Kabwe, C (Chali)
2	2	Tournament St Peters College Chess League 2023				Tournament St Peters College Chess League 2023
		date 2023-10-02	rnd 3	type Standard	result 1	date 2023-10-09	rnd 4	type Standard	result 1
		Opponent Khandoo, J (Jiya)				Opponent Mahlatsi, R (Remothabetse)

#	Games	Start				End
1	2	Tournament St Peters College Chess League 2023				Tournament St Peters College Chess League 2023
		date 2023-10-02	rnd 3	type Standard	result 1	date 2023-10-09	rnd 4	type Standard	result 1
		Opponent Khandoo, J (Jiya)				Opponent Mahlatsi, R (Remothabetse)

#	Games	Start				End
1	3	Tournament JCC SAHETI High Schools League Round Robin 2024				Tournament JCC - SAHETI Chess League 2025
		date 2024-05-20	rnd 2	type Rapid	result 1	date 2025-05-12	rnd 1	type Rapid	result 1
		Opponent Stathoulis, C (Constantinos John)				Opponent Kabwe, C (Chali)

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	Mahlatsi ,R (Remothabetse)	1	1	425	1	1	425	0	0	0	0	0	0
1	Mahlatsi ,R (Remothabetse)	1	1169.2	1594.2	1	1160.8	1594.2	0	0	0	0	0	0
2	Khumalo ,N (Nkosinathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Khumalo ,N (Nkosinathi)	1	1267.1	842.1	1	1272.4	842.1	0	0	0	0	0	0
3	Khandoo ,J (Jiya)	1	1	425	1	1	425	0	0	0	0	0	0
3	Khandoo ,J (Jiya)	1	1226	1651	1	1231.3	1651	0	0	0	0	0	0
4	Froom ,G (Gabriel)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Froom ,G (Gabriel)	1	1550	1125	0	0	0	1	1233	1125	0	0	0
5	Kabwe ,C (Chali)	1	1	425	0	0	0	1	1	425	0	0	0
5	Kabwe ,C (Chali)	1	1191.1	1616.1	0	0	0	1	1180.5	1616.1	0	0	0
6	Dada ,Y (Yaseen)	1	1	425	0	0	0	1	1	425	0	0	0
6	Dada ,Y (Yaseen)	1	864.1	1289.1	0	0	0	1	764.5	1289.1	0	0	0
7	Stathoulis ,C (Constantinos John)	1	1	425	0	0	0	1	1	425	0	0	0
7	Stathoulis ,C (Constantinos John)	1	1177.6	1602.6	0	0	0	1	1200	1602.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Yen, C (Christopher)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms