Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zhang, J (Jinmeng)

Chess SA id

2180314532

FIDE id

Date of birth

2018-05-12 (U8)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-03

Personal details last changed

1900-01-01

Junior GPX Games

15.3

Junior GPX Points

1054.9

Item	Main	Standard	Rapid	Blitz
Rating	1200.7	1207.1	1199.5	1200
Raw rating	1200.6	1206.7	1199.5	1200
Weighted rating	1200.7	1207.1	1199.4	1200
Weighted performance	0	0	0	0
Floor	711.4	749	699.9	700
K-factor	36	36	40	36
Min/Max rating change allowed	165.7	164.3	165.9	165.8
Highest rating	1211.4 2025-03-01	1249 2025-03-01	1199.9 2025-02-06	1200 2025-03-01
Highest raw rating	1211.4 2025-03-01	1249 2025-03-01	1199.9 2025-02-06	1200 2025-03-01
Highest weighted rating	1211.4 2025-03-01	1249 2025-05-05	1199.9 2025-02-06	1200 2025-03-01
Highest weighted performance	660.4 2025-08-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.2	0	0
New rating	1200.7	1207.2	1199.5	1200
Analysis
Rating	1200.7	1207.1	1199.5	1200
Raw rating	1200.6	1206.7	1199.5	1200
Weighted rating	1200.7	1207.1	1199.4
Weighted performance	0	0	0
K-factor	36	36	40	36
Floor	711.4	749	699.9	700
Max/Min rating change allowed	165.7	164.3	165.9	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	1200.6	1206.7	1199.5	1200
New weighted rating	1200.7	1207.2	1199.4	1200
New weighted performance	0	0	0	0
Temp new rating	1200.7	1207.2	1199.5	1200
Temp new rating +/-	0	0.2	0	0
Final new rating +/-	0	0.2	0	0
New rating	1200.7	1207.2	1199.5	1200
New K-factor	36	36	40	36
New floor	711.4	749	699.9	700

Item	Main	Standard	Rapid
	0	0	0
	18	14	4
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	18	14	4

Games since
	Main 18	Standard 14		Rapid 4		Blitz 0
Gender	Female
Age group	U8
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 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	18	6.5	36.11	-118.1	1197.9	1079.8
Standard	14	6	42.86	-60.7	1199.2	1138.4
Rapid	4	0.5	12.5	-318.8	1193.5	874.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	18	6.5	36.11	-118.1	1197.9	1079.8
Standard	14	6	42.86	-60.7	1199.2	1138.4
Rapid	4	0.5	12.5	-318.8	1193.5	874.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1200.6	1206.7	1199.5	1200
2025-09-01	1200.6	1206.7	1199.5	1200
2025-08-01	1200.6	1206.7	1199.5	1200
2025-07-01	1200.4	1206.2	1199.5	1200
2025-06-01	1197.2	1202.4	1199.5	1200
2025-05-01	1200.8	1217.6	1199.5	1200
2025-04-01	1199.9	1217.6	1199.2	1200
2025-03-01	1211.4	1249	1194.8	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
2024-06-01	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	South African Open 2025 (U8 Girls)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	0	0	No	Analysis
2	CPH May 2025 (E)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
3	Chess Power House March Open 2025 (E)	2025-03-22	2025-03-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Knight Riders Open Chess Tournament 2025 (U8)	2025-02-22	2025-02-22	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
5	Chess Power House Feb Rapid 2025 (D)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	South African Open 2025 (U8 Girls)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	0	0	No	Analysis
2	CPH May 2025 (E)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
3	Chess Power House March Open 2025 (E)	2025-03-22	2025-03-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Knight Riders Open Chess Tournament 2025 (U8)	2025-02-22	2025-02-22	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
5	Chess Power House Feb Rapid 2025 (D)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Knight Riders Open Chess Tournament 2025				Tournament Knight Riders Open Chess Tournament 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Mkhize, N (Nthabeleng Balulekile)				Opponent Sithole, S (Simbongile)
2	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Gottumukkala, M (Maanvi)				Opponent Gottumukkala, M (Maanvi)
3	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Ndaba, M (Mohau)				Opponent Ndaba, M (Mohau)

#	Games	Start				End
1	3	Tournament Knight Riders Open Chess Tournament 2025				Tournament Knight Riders Open Chess Tournament 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Mkhize, N (Nthabeleng Balulekile)				Opponent Sithole, S (Simbongile)
2	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Gottumukkala, M (Maanvi)				Opponent Gottumukkala, M (Maanvi)
3	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Ndaba, M (Mohau)				Opponent Ndaba, M (Mohau)

#	Games	Start				End
1	1	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 0.5	date 2025-02-02	rnd 1	type Rapid	result 0.5
		Opponent Blumenow, R (Roxy)				Opponent Blumenow, R (Roxy)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Knight Riders Open Chess Tournament 2025				Tournament Knight Riders Open Chess Tournament 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Mkhize, N (Nthabeleng Balulekile)				Opponent Sithole, S (Simbongile)
2	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Gottumukkala, M (Maanvi)				Opponent Gottumukkala, M (Maanvi)
3	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Ndaba, M (Mohau)				Opponent Ndaba, M (Mohau)

#	Games	Start				End
1	3	Tournament Knight Riders Open Chess Tournament 2025				Tournament Knight Riders Open Chess Tournament 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Mkhize, N (Nthabeleng Balulekile)				Opponent Sithole, S (Simbongile)
2	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Gottumukkala, M (Maanvi)				Opponent Gottumukkala, M (Maanvi)
3	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Ndaba, M (Mohau)				Opponent Ndaba, M (Mohau)

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	Liu ,K (Kaireen)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Liu ,K (Kaireen)	2	1233.1	808.1	2	1240.6	808.1	0	0	0	0	0	0
2	Gottumukkala ,M (Maanvi)	1	1	425	1	1	425	0	0	0	0	0	0
2	Gottumukkala ,M (Maanvi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Svirsky ,A (Alon)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Svirsky ,A (Alon)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Ndaba ,M (Mohau)	1	1	425	1	1	425	0	0	0	0	0	0
4	Ndaba ,M (Mohau)	1	1159.7	1584.7	1	1172.6	1584.7	0	0	0	0	0	0
5	Maduna ,A (Asonele)	1	1	425	1	1	425	0	0	0	0	0	0
5	Maduna ,A (Asonele)	1	1171.5	1596.5	1	1165.7	1596.5	0	0	0	0	0	0
6	Phiri ,I (Ikaneng)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Phiri ,I (Ikaneng)	1	1096.4	671.4	1	1200	671.4	0	0	0	0	0	0
7	Sithole ,S (Simbongile)	1	1	425	1	1	425	0	0	0	0	0	0
7	Sithole ,S (Simbongile)	1	1186.6	1611.6	1	1183.4	1611.6	0	0	0	0	0	0
8	Liebenberg ,A (Arabella)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Liebenberg ,A (Arabella)	1	1199.3	774.3	1	1199.1	774.3	0	0	0	0	0	0
9	Gerber ,Z (Zoe)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Gerber ,Z (Zoe)	1	1118.2	693.2	1	1115.8	693.2	0	0	0	0	0	0
10	Newman ,A (Ayen)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Newman ,A (Ayen)	1	1516.3	1091.3	1	1403.7	1091.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Zhang, J (Jinmeng)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms