Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zhang, Y (Yufei)

Chess SA id

2130306252

FIDE id

Date of birth

2013-12-23 (U14)

Gender

Female

Region

Tshwane (GTP)

Citizen

CHN

Titles

Chess SA registered

Yes

Last active game

2025-09-13

Personal details last changed

2025-03-25

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1181	1178.5	1200	1200
Raw rating	1181	1178.5	1200	1200
Weighted rating	1161.5	1160.4	1200	1200
Weighted performance	1153.8	1155.7	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.4	171	165.8	165.8
Highest rating	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01
Highest raw rating	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01
Highest weighted rating	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-06-01	1200 2024-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1181	1178.5	1200	1200
Analysis
Rating	1181	1178.5	1200	1200
Raw rating	1181	1178.5	1200	1200
Weighted rating	1161.5	1160.4	1200
Weighted performance	1153.8	1155.7	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	170.4	171	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	1181	1178.5	1200	1200
New weighted rating	1162.4	1161.2	1200	1200
New weighted performance	1153.4	1155.3	0	0
Temp new rating	1181	1178.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1181	1178.5	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	53	53
	15	15
	0	0
	0	0
	0	0
History	68	68

Games since
	Main 68	Standard 68		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	4137		1323		470
Female	1021		309		111
U14	805		254		88
U14 Female	234		73		25
Standard
	RSA		Province		Region
Overall	4080		1422		552
Female	1022		331		129
U14	810		278		103
U14 Female	240		78		28
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-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	53	20.5	38.68	-96.2	1248.4	1152.1
Standard	53	20.5	38.68	-96.2	1248.4	1152.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	68	25.5	37.5	-106.2	1240.7	1134.4
Standard	68	25.5	37.5	-106.2	1240.7	1134.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1181	1178.5	1200	1200
2025-09-01	1145	1140.4	1200	1200
2025-08-01	1163.5	1163.8	1200	1200
2025-07-01	1163.5	1163.8	1200	1200
2025-06-01	1163.8	1163	1200	1200
2025-05-01	1166.5	1167.1	1200	1200
2025-04-01	1169.2	1168.6	1200	1200
2025-03-01	1171.9	1172.8	1200	1200
2025-02-01	1163.6	1162.1	1200	1200
2025-01-01	1132.6	1130.8	1200	1200
2024-12-01	1132.6	1130.8	1200	1200
2024-11-01	1132.6	1130.8	1200	1200
2024-10-01	1132.6	1130.8	1200	1200
2024-09-01	1132.6	1130.8	1200	1200
2024-08-01	1169.4	1172.4	1200	1200
2024-07-01	1131.9	1125.6	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
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	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	2025 Alekhine Open (D)	2025-09-06	2025-09-07	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2025 Midstream Open Chess Tournament (D)	2025-08-25	2025-08-25	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
4	2025 Tshwane South School District CLOSED League Championship (U13B)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
5	2025 JMCA Open Chess Tournament (D)	2025-06-07	2025-06-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
6	Knight Riders Juniors Open Chess Tournament 2025 (C)	2025-05-25	2025-05-25	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
7	2025 Silver Lakes Chess Club Open Chess Tournament (D)	2025-05-03	2025-05-03	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
8	2025 Mid Gauteng Open Chess Tournament (D)	2025-04-12	2025-04-12	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
9	2025 Chris Greyling Open Chess Tournament (D1)	2025-03-15	2025-03-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
10	2025 Blou Bul Open Chess Tournament (D2)	2025-02-08	2025-02-08	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
11	2025 Tshwane Chess OPEN Registration Tournament (C)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	2025 Alekhine Open (D)	2025-09-06	2025-09-07	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2025 Midstream Open Chess Tournament (D)	2025-08-25	2025-08-25	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
4	2025 Tshwane South School District CLOSED League Championship (U13B)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
5	2025 JMCA Open Chess Tournament (D)	2025-06-07	2025-06-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
6	Knight Riders Juniors Open Chess Tournament 2025 (C)	2025-05-25	2025-05-25	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
7	2025 Silver Lakes Chess Club Open Chess Tournament (D)	2025-05-03	2025-05-03	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
8	2025 Mid Gauteng Open Chess Tournament (D)	2025-04-12	2025-04-12	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
9	2025 Chris Greyling Open Chess Tournament (D1)	2025-03-15	2025-03-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
10	2025 Blou Bul Open Chess Tournament (D2)	2025-02-08	2025-02-08	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
11	2025 Tshwane Chess OPEN Registration Tournament (C)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
12	2024 Alekhine Open Chess Tournament (U12)	2024-08-09	2024-08-10	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
13	Menlopark Open Chess Tournament 2024 (U12)	2024-07-13	2024-07-13	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
14	2024 Elise Steenkamp Open Chess Tournament (Rooks)	2024-06-15	2024-06-15	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Du Toit, J (Janri)				Opponent Posthumus, S (Shenique)
2	3	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Talma, C (Christiaan)				Opponent Zou, Y (Yixuan)
3	2	Tournament 2025 Alekhine Open				Tournament 2025 Alekhine Open
		date 2025-09-07	rnd 4	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Brink, J (Jayden)				Opponent Rakgatlha, K (Karabo Kgobane)

#	Games	Start				End
1	3	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Du Toit, J (Janri)				Opponent Posthumus, S (Shenique)
2	3	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Talma, C (Christiaan)				Opponent Zou, Y (Yixuan)
3	2	Tournament 2025 Alekhine Open				Tournament 2025 Alekhine Open
		date 2025-09-07	rnd 4	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Brink, J (Jayden)				Opponent Rakgatlha, K (Karabo Kgobane)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Du Toit, J (Janri)				Opponent Posthumus, S (Shenique)
2	3	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Talma, C (Christiaan)				Opponent Zou, Y (Yixuan)
3	2	Tournament 2025 Alekhine Open				Tournament 2025 Alekhine Open
		date 2025-09-07	rnd 4	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Brink, J (Jayden)				Opponent Rakgatlha, K (Karabo Kgobane)

#	Games	Start				End
1	3	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 2	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Du Toit, J (Janri)				Opponent Posthumus, S (Shenique)
2	3	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Talma, C (Christiaan)				Opponent Zou, Y (Yixuan)
3	2	Tournament 2025 Alekhine Open				Tournament 2025 Alekhine Open
		date 2025-09-07	rnd 4	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Brink, J (Jayden)				Opponent Rakgatlha, K (Karabo Kgobane)

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	Allison ,S (Spencer)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Allison ,S (Spencer)	2	1283.9	858.9	2	1283.8	858.9	0	0	0	0	0	0
2	Du Toit ,J (Janri)	2	1	0	2	1	0	0	0	0	0	0	0
2	Du Toit ,J (Janri)	2	1116.9	1116.9	2	1103.3	1116.9	0	0	0	0	0	0
3	Maritz ,N (Noah)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Maritz ,N (Noah)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Makhoana ,N (Neo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Makhoana ,N (Neo)	1	1280.9	855.9	1	1271.4	855.9	0	0	0	0	0	0
5	Swanepoel ,L (Lianke)	1	1	425	1	1	425	0	0	0	0	0	0
5	Swanepoel ,L (Lianke)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Myagkov ,R (Rostyslav)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Myagkov ,R (Rostyslav)	1	1340.8	915.8	1	1337.9	915.8	0	0	0	0	0	0
7	Mbedzi ,T (Tshedza)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mbedzi ,T (Tshedza)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Selibi ,L (Lesedi)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Selibi ,L (Lesedi)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Friday ,J (Jordan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Friday ,J (Jordan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Nemusombori ,L (Livhuwani Nathan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Nemusombori ,L (Livhuwani Nathan)	1	1474.5	1049.5	1	1471.2	1049.5	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

Zhang, Y (Yufei)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms