Chess South Africa Ratings Database

PLAYER PAGE

Personal

Meng, Y (Yufei)

Chess SA id

2130152476

FIDE id

Date of birth

2013-05-28 (U14)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-03-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1211.6	1221	1187.7	1200
Raw rating	1211.6	1221	1187.7	1200
Weighted rating	1210.7	1219.9	1186.5	1200
Weighted performance	906.3	0	0	0
Floor	711.6	721	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.1	160.9	168.7	165.8
Highest rating	1211.6 2024-04-01	1221 2024-04-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1211.6 2024-04-01	1221 2024-04-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1209.3 2025-08-01	1217.9 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1208.5 2023-06-01	1209.8 2023-06-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1211.6	1221	1187.7	1200
Analysis
Rating	1211.6	1221	1187.7	1200
Raw rating	1211.6	1221	1187.7	1200
Weighted rating	1210.7	1219.9	1186.5
Weighted performance	906.3	0	0
K-factor	36	36	36	36
Floor	711.6	721	700	700
Max/Min rating change allowed	163.1	160.9	168.7	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	1211.6	1221	1187.7	1200
New weighted rating	1211.1	1220.3	1186.6	1200
New weighted performance	899.3	0	0	0
Temp new rating	1211.6	1221	1187.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1211.6	1221	1187.7	1200
New K-factor	36	36	36	36
New floor	711.6	721	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	10	5	5
	15	15	0
	0	0	0
	0	0	0
History	25	20	5

Games since
	Main 10	Standard 5		Rapid 5		Blitz 0
Gender	Female
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	25	13	52	17	1181.4	1198.4
Standard	20	11	55	42.5	1172.4	1214.9
Rapid	5	2	40	-85	1217.6	1132.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1211.6	1221	1187.7	1200
2025-09-30	1211.6	1221	1187.7	1200
2025-09-01	1211.6	1221	1187.7	1200
2025-08-01	1211.6	1221	1187.7	1200
2025-07-01	1211.6	1221	1187.7	1200
2025-06-01	1211.6	1221	1187.7	1200
2025-05-01	1211.6	1221	1187.7	1200
2025-04-01	1211.6	1221	1187.7	1200
2025-03-01	1211.6	1221	1187.7	1200
2025-02-01	1211.6	1221	1187.7	1200
2025-01-01	1211.6	1221	1183.4	1200
2024-12-01	1211.6	1221	1183.4	1200
2024-11-01	1211.6	1221	1183.4	1200
2024-10-01	1211.6	1221	1183.4	1200
2024-09-01	1211.6	1221	1183.4	1200
2024-08-01	1211.6	1221	1183.4	1200
2024-07-01	1211.6	1221	1183.4	1200
2024-09-01	1211.6	1221	1183.4	1200
2024-05-01	1211.6	1221	1183.4	1200
2024-04-01	1211.6	1221	1183.4	1200
2024-03-01	1182.7	1188.2	1183.4	1200
2024-02-01	1188	1188.2	1200	1200
2024-01-01	1188	1188.2	1200	1200
2023-12-01	1188	1188.2	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JMC Unika School Tournament 2024 (D)	2024-03-02	2024-03-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
2	Chess Power House 1st Rapid 2024 (B)	2024-02-24	2024-02-24	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
3	GoForChess Junior Chess Championship Grayston 2023 (Seniors)	2023-07-16	2023-07-16	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Knight Riders Youth Day 2023 (U12)	2023-06-16	2023-06-16	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
5	JMC 1 St Peters 2023 (D)	2023-03-18	2023-03-18	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament JMC 1 St Peters 2023				Tournament JMC 1 St Peters 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Milner, A (Aiden)				Opponent Brits, E (Etienne)
2	2	Tournament Chess Power House 1st Rapid 2024				Tournament JMC Unika School Tournament 2024
		date 2024-02-24	rnd 5	type Rapid	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Chirimuta, T (Troy Gabriel)				Opponent Sibanda, A (Andile)
3	2	Tournament GoForChess Junior Chess Championship Grayston 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-16	rnd 2	type Standard	result 1	date 2023-07-16	rnd 3	type Standard	result 1
		Opponent Kalmek, M (Mia)				Opponent Tang, Z (Zilean)

#	Games	Start				End
1	3	Tournament JMC 1 St Peters 2023				Tournament JMC 1 St Peters 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Milner, A (Aiden)				Opponent Brits, E (Etienne)
2	2	Tournament GoForChess Junior Chess Championship Grayston 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-16	rnd 2	type Standard	result 1	date 2023-07-16	rnd 3	type Standard	result 1
		Opponent Kalmek, M (Mia)				Opponent Tang, Z (Zilean)
3	2	Tournament Knight Riders Youth Day 2023				Tournament Knight Riders Youth Day 2023
		date 2023-06-16	rnd 4	type Standard	result 1	date 2023-06-16	rnd 5	type Standard	result 1
		Opponent Chadalavada, B (Bhaarghavarama)				Opponent Naicker, V (Victoria Angelique)

#	Games	Start				End
1	1	Tournament Chess Power House 1st Rapid 2024				Tournament Chess Power House 1st Rapid 2024
		date 2024-02-24	rnd 5	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Chirimuta, T (Troy Gabriel)				Opponent Chirimuta, T (Troy Gabriel)
2	1	Tournament Chess Power House 1st Rapid 2024				Tournament Chess Power House 1st Rapid 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Ngqweqwe, S (Sanele)				Opponent Ngqweqwe, S (Sanele)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament JMC 1 St Peters 2023				Tournament JMC 1 St Peters 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Milner, A (Aiden)				Opponent Brits, E (Etienne)
2	2	Tournament Chess Power House 1st Rapid 2024				Tournament JMC Unika School Tournament 2024
		date 2024-02-24	rnd 5	type Rapid	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Chirimuta, T (Troy Gabriel)				Opponent Sibanda, A (Andile)
3	2	Tournament GoForChess Junior Chess Championship Grayston 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-16	rnd 2	type Standard	result 1	date 2023-07-16	rnd 3	type Standard	result 1
		Opponent Kalmek, M (Mia)				Opponent Tang, Z (Zilean)

#	Games	Start				End
1	3	Tournament JMC 1 St Peters 2023				Tournament JMC 1 St Peters 2023
		date 2023-03-18	rnd 3	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Milner, A (Aiden)				Opponent Brits, E (Etienne)
2	2	Tournament GoForChess Junior Chess Championship Grayston 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-16	rnd 2	type Standard	result 1	date 2023-07-16	rnd 3	type Standard	result 1
		Opponent Kalmek, M (Mia)				Opponent Tang, Z (Zilean)
3	2	Tournament Knight Riders Youth Day 2023				Tournament Knight Riders Youth Day 2023
		date 2023-06-16	rnd 4	type Standard	result 1	date 2023-06-16	rnd 5	type Standard	result 1
		Opponent Chadalavada, B (Bhaarghavarama)				Opponent Naicker, V (Victoria Angelique)

#	Games	Start				End
1	1	Tournament Chess Power House 1st Rapid 2024				Tournament Chess Power House 1st Rapid 2024
		date 2024-02-24	rnd 5	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Chirimuta, T (Troy Gabriel)				Opponent Chirimuta, T (Troy Gabriel)
2	1	Tournament Chess Power House 1st Rapid 2024				Tournament Chess Power House 1st Rapid 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Ngqweqwe, S (Sanele)				Opponent Ngqweqwe, S (Sanele)

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	Mankena ,S (Satvik Ram)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Mankena ,S (Satvik Ram)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Naicker ,V (Victoria Angelique)	1	1	425	1	1	425	0	0	0	0	0	0
2	Naicker ,V (Victoria Angelique)	1	1029.3	1454.3	1	1016.8	1454.3	0	0	0	0	0	0
3	Ni ,YS (Yi Shi)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Ni ,YS (Yi Shi)	1	741.5	316.5	1	785	316.5	0	0	0	0	0	0
4	Sibanda ,A (Andile)	1	1	425	1	1	425	0	0	0	0	0	0
4	Sibanda ,A (Andile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Sehloho ,T (Thandolwethu)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Sehloho ,T (Thandolwethu)	1	1321.7	896.7	1	1316.4	896.7	0	0	0	0	0	0
6	Venter ,C (Christiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Venter ,C (Christiaan)	1	1400.1	975.1	1	1443.6	975.1	0	0	0	0	0	0
7	Brits ,E (Etienne)	1	1	425	1	1	425	0	0	0	0	0	0
7	Brits ,E (Etienne)	1	1248.5	1673.5	1	1258.4	1673.5	0	0	0	0	0	0
8	Tabilo Lillo ,M (Marcelo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Tabilo Lillo ,M (Marcelo)	1	1162.2	1587.2	1	1164.8	1587.2	0	0	0	0	0	0
9	Westoby ,A (Adam)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Westoby ,A (Adam)	1	1161.7	736.7	1	1173.6	736.7	0	0	0	0	0	0
10	Velloen ,D (Dean Hendrik)	1	1	425	1	1	425	0	0	0	0	0	0
10	Velloen ,D (Dean Hendrik)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Meng, 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