Chess South Africa Ratings Database

PLAYER PAGE

Personal

Chen, Y (Yan Feng)

Chess SA id

1120317791

FIDE id

Date of birth

2012-10-18 (U14)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1288.5	1307.9	1200	1200
Raw rating	1288.5	1307.9	1200	1200
Weighted rating	1248.4	1259	1200	1200
Weighted performance	0	0	0	0
Floor	788.5	807.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	146.2	142.2	165.8	165.8
Highest rating	1288.5 2025-04-01	1307.9 2025-04-01	1200 2025-04-01	1200 2025-04-01
Highest raw rating	1288.5 2025-04-01	1307.9 2025-04-01	1200 2025-04-01	1200 2025-04-01
Highest weighted rating	1232.4 2025-08-01	1239.6 2025-08-01	1200 2025-04-01	1200 2025-04-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1288.5	1307.9	1200	1200
Analysis
Rating	1288.5	1307.9	1200	1200
Raw rating	1288.5	1307.9	1200	1200
Weighted rating	1248.4	1259	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	788.5	807.9	700	700
Max/Min rating change allowed	146.2	142.2	165.8	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	1288.5	1307.9	1200	1200
New weighted rating	1253.1	1264.7	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1288.5	1307.9	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1288.5	1307.9	1200	1200
New K-factor	36	36	36	36
New floor	788.5	807.9	700	700

Item	Main	Standard
	0	0
	5	5
	0	0
	0	0
	0	0
	0	0
History	5	5

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	5	5	100	425	1221.1	1646.1
Standard	5	5	100	425	1221.1	1646.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	5	5	100	425	1221.1	1646.1
Standard	5	5	100	425	1221.1	1646.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1288.5	1307.9	1200	1200
2025-09-30	1288.5	1307.9	1200	1200
2025-09-01	1288.5	1307.9	1200	1200
2025-08-01	1288.5	1307.9	1200	1200
2025-07-01	1288.5	1307.9	1200	1200
2025-06-01	1288.5	1307.9	1200	1200
2025-05-01	1288.5	1307.9	1200	1200
2025-04-01	1288.5	1307.9	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	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

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	MCA Summer March 2025 (Junior)	2025-03-08	2025-03-08	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	MCA Summer March 2025 (Junior)	2025-03-08	2025-03-08	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis

#	Games	Start				End
1	5	Tournament MCA Summer March 2025				Tournament MCA Summer March 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Britz, G (Gian)				Opponent Amado, N (Nahom)

#	Games	Start				End
1	5	Tournament MCA Summer March 2025				Tournament MCA Summer March 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Britz, G (Gian)				Opponent Amado, N (Nahom)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament MCA Summer March 2025				Tournament MCA Summer March 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Britz, G (Gian)				Opponent Amado, N (Nahom)

#	Games	Start				End
1	5	Tournament MCA Summer March 2025				Tournament MCA Summer March 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Britz, G (Gian)				Opponent Amado, N (Nahom)

No games found.

#	Games	Start				End

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	Britz ,G (Gian)	1	1	425	1	1	425	0	0	0	0	0	0
1	Britz ,G (Gian)	1	1199.3	1624.3	1	1203.6	1624.3	0	0	0	0	0	0
2	Amado ,N (Nahom)	1	1	425	1	1	425	0	0	0	0	0	0
2	Amado ,N (Nahom)	1	1266.4	1691.4	1	1281.6	1691.4	0	0	0	0	0	0
3	Knight ,E (Eryk)	1	1	425	1	1	425	0	0	0	0	0	0
3	Knight ,E (Eryk)	1	1209.8	1634.8	1	1210.7	1634.8	0	0	0	0	0	0
4	Ledwaba ,N (Nua)	1	1	425	1	1	425	0	0	0	0	0	0
4	Ledwaba ,N (Nua)	1	1212.1	1637.1	1	1216.4	1637.1	0	0	0	0	0	0
5	Darroch ,J (Jarrod)	1	1	425	1	1	425	0	0	0	0	0	0
5	Darroch ,J (Jarrod)	1	1218	1643	1	1221.8	1643	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Chen, Y (Yan Feng)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms