Chess South Africa Ratings Database

PLAYER PAGE

Personal

Weng, Y (Yu)

Chess SA id

1060143831

FIDE id

Date of birth

2006-04-11 (U20)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1340.3	1233.1	1350.4	1200
Raw rating	1340.3	1233.1	1350.4	1200
Weighted rating	1334.2	1230.1	1340.3	1200
Weighted performance	1162.4	911.1	1121.1	0
Floor	840.3	733.1	850.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	135.8	158.2	133.8	165.8
Highest rating	1371.2 2024-08-01	1247 2023-02-01	1350.4 2024-09-01	1200 2018-10-01
Highest raw rating	1340.3 2024-09-01	1233.1 2024-05-01	1350.4 2024-09-01	1200 2024-02-01
Highest weighted rating	1330.5 2025-08-01	1227.9 2025-08-01	1334.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1371.2 2024-08-01	1247 2023-02-01	1326.4 2024-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1340.3	1233.1	1350.4	1200
Analysis
Rating	1340.3	1233.1	1350.4	1200
Raw rating	1340.3	1233.1	1350.4	1200
Weighted rating	1334.2	1230.1	1340.3
Weighted performance	1162.4	911.1	1121.1
K-factor	36	36	36	36
Floor	840.3	733.1	850.4	700
Max/Min rating change allowed	135.8	158.2	133.8	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	1340.3	1233.1	1350.4	1200
New weighted rating	1335.7	1230.9	1342.6	1200
New weighted performance	1161.9	910.6	1120.6	0
Temp new rating	1340.3	1233.1	1350.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1340.3	1233.1	1350.4	1200
New K-factor	36	36	36	36
New floor	840.3	733.1	850.4	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	15	5	10
	35	10	25
	24	10	14
	0	0	0
History	74	25	49

Games since
	Main 15	Standard 5		Rapid 10		Blitz 0
Gender	Male
Age group	U20
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	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	74	45	60.81	91.9	1239.2	1331.1
Standard	25	12.5	50	0	1227.7	1227.7
Rapid	49	32.5	66.33	138.8	1245.1	1383.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1340.3	1233.1	1350.4	1200
2025-09-01	1340.3	1233.1	1350.4	1200
2025-08-01	1340.3	1233.1	1350.4	1200
2025-07-01	1340.3	1233.1	1350.4	1200
2025-06-01	1340.3	1233.1	1350.4	1200
2025-05-01	1340.3	1233.1	1350.4	1200
2025-04-01	1340.3	1233.1	1350.4	1200
2025-03-01	1340.3	1233.1	1350.4	1200
2025-02-01	1340.3	1233.1	1350.4	1200
2025-01-01	1340.3	1233.1	1350.4	1200
2024-12-01	1340.3	1233.1	1350.4	1200
2024-11-01	1340.3	1233.1	1350.4	1200
2024-10-01	1340.3	1233.1	1350.4	1200
2024-09-01	1340.3	1233.1	1350.4	1200
2024-08-01	1320.1	1233.1	1303.6	1200
2024-07-01	1320.1	1233.1	1303.6	1200
2024-06-01	1320.1	1233.1	1303.6	1200
2024-08-01	1320.1	1233.1	1303.6	1200
2024-04-01	1294.4	1189.9	1303.6	1200
2024-03-01	1294.4	1189.9	1303.6	1200
2024-02-01	1294.4	1189.9	1303.6	1200
2024-01-01	1264.6	1189.9	1226.9	1200
2023-12-01	1264.6	1189.9	1226.9	1200
2023-11-01	1264.6	1189.9	1226.9	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	Bloemfontein Highschool League 02 Aug 2024 (U19A)	2024-08-02	2024-08-02	Rapid	Mangaung (FMB)	5	5	4	Yes	Analysis
2	Mangaung Metro Chess 12-13 April 2024 (B)	2024-04-12	2024-04-13	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
3	Bloemfontein High School League Tournament 26 January 2024 (U19B)	2024-01-26	2024-01-26	Rapid	Mangaung (FMB)	5	5	5	Yes	Analysis
4	St Andrews 19 August 2023 (B)	2023-08-19	2023-08-19	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
5	Bloemfontein League 25 August 2023 (U19A)	2023-08-25	2023-08-25	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Morris Club Championship 2023	2023-07-28	2023-07-28	Rapid	Mangaung (FMB)	5	5	4	Yes	Analysis
7	Inter Regional Chess Championship 2023 (U18)	2023-05-19	2023-05-20	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
8	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
9	Bloemfontein Highschool League 24 Feb 2023 (U17)	2023-02-24	2023-02-24	Rapid	Mangaung (FMB)	5	5	4.5	Yes	Analysis
10	Kings & Queens Chess 21 January 2023 (B)	2023-01-21	2023-01-21	Rapid	Mangaung (FMB)	5	5	2.5	Yes	Analysis
11	Courteney Page Chess Festival 2022 (A+B)	2022-10-15	2022-10-15	Rapid	Mangaung (FMB)	5	5	1.5	Yes	Analysis
12	Kiriakos Michalakis Chess Festival 2022 (A)	2022-09-23	2022-09-23	Standard	Mangaung (FMB)	5	5	1	Yes	Analysis
13	Bloemfontein School League 2022 (U15+U17)	2022-08-12	2022-08-12	Rapid	Mangaung (FMB)	5	5	5	Yes	Analysis
14	Mangaung Metro Chess 13 August 2022 (B)	2022-08-13	2022-08-13	Rapid	Mangaung (FMB)	5	4	1	Yes	Analysis
15	8th Piet Van Zyl Chess Festival 2022 (C)	2022-07-22	2022-07-23	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis

#	Games	Start				End
1	10	Tournament Grey College Team Championship 2023				Tournament Inter Regional Chess Championship 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-05-19	rnd 1	type Standard	result 1
		Opponent De Klerk, L (Lize)				Opponent Malan, JME (Johannes)
2	7	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-04-12	rnd 2	type Standard	result 0.5
		Opponent Pretorius, C (Chad)				Opponent Els, C (Christiaan)
3	6	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Bloemfontein Highschool League 02 Aug 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Melville, J (Joalize)				Opponent Badenhorst, M (Matthew Peter)

#	Games	Start				End
1	5	Tournament Grey College Team Championship 2023				Tournament Inter Regional Chess Championship 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-05-19	rnd 1	type Standard	result 1
		Opponent De Klerk, L (Lize)				Opponent Malan, JME (Johannes)
2	2	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-04-13	rnd 5	type Standard	result 1
		Opponent Melville, J (Joalize)				Opponent Mohobane, L (Lebajoa)
3	2	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-12	rnd 1	type Standard	result 1	date 2024-04-12	rnd 2	type Standard	result 0.5
		Opponent Nwafor, N (Nneka)				Opponent Els, C (Christiaan)

#	Games	Start				End
1	9	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Bloemfontein Highschool League 02 Aug 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Pretorius, C (Chad)				Opponent Badenhorst, M (Matthew Peter)
2	9	Tournament Bloemfontein Highschool League 24 Feb 2023				Tournament Morris Club Championship 2023
		date 2023-02-24	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 4	type Rapid	result 1
		Opponent Hoffman, T (Thiame)				Opponent Witten, C (Cael)
3	6	Tournament Bloemfontein School League 2022				Tournament Mangaung Metro Chess 13 August 2022
		date 2022-08-12	rnd 1	type Rapid	result 1	date 2022-08-13	rnd 2	type Rapid	result 1
		Opponent Alam, T (Tanbir)				Opponent Swanepoel, W (Wj)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Grey College Team Championship 2023				Tournament Bloemfontein Highschool League 24 Feb 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-24	rnd 4	type Rapid	result 1
		Opponent De Klerk, L (Lize)				Opponent Ogundeji, D (Demi)
2	6	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Bloemfontein Highschool League 02 Aug 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Melville, J (Joalize)				Opponent Badenhorst, M (Matthew Peter)
3	6	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-04-12	rnd 1	type Standard	result 1
		Opponent Pretorius, C (Chad)				Opponent Nwafor, N (Nneka)

#	Games	Start				End
1	5	Tournament Grey College Team Championship 2023				Tournament Inter Regional Chess Championship 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-05-19	rnd 1	type Standard	result 1
		Opponent De Klerk, L (Lize)				Opponent Malan, JME (Johannes)
2	2	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-04-13	rnd 5	type Standard	result 1
		Opponent Melville, J (Joalize)				Opponent Mohobane, L (Lebajoa)
3	1	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-12	rnd 1	type Standard	result 1	date 2024-04-12	rnd 1	type Standard	result 1
		Opponent Nwafor, N (Nneka)				Opponent Nwafor, N (Nneka)

#	Games	Start				End
1	9	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Bloemfontein Highschool League 02 Aug 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Pretorius, C (Chad)				Opponent Badenhorst, M (Matthew Peter)
2	6	Tournament Bloemfontein School League 2022				Tournament Mangaung Metro Chess 13 August 2022
		date 2022-08-12	rnd 1	type Rapid	result 1	date 2022-08-13	rnd 2	type Rapid	result 1
		Opponent Alam, T (Tanbir)				Opponent Swanepoel, W (Wj)
3	4	Tournament Morris Club Championship 2023				Tournament Morris Club Championship 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 4	type Rapid	result 1
		Opponent Hendricks, LC (Lesego)				Opponent Witten, C (Cael)

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	Els ,C (Christiaan)	3	0.5	-283.3	1	0.5	0	2	0	-425	0	0	0
1	Els ,C (Christiaan)	3	1329	1045.6	1	1355.8	1329	2	1203.6	904	0	0	0
2	Melville ,J (Joalize)	2	1	0	2	1	0	0	0	0	0	0	0
2	Melville ,J (Joalize)	2	1066.4	1066.4	2	1008.6	1066.4	0	0	0	0	0	0
3	Mahlaba ,T (Tendani)	2	1	0	1	0	-425	1	1	425	0	0	0
3	Mahlaba ,T (Tendani)	2	1208.8	1208.8	1	1200	783.8	1	1200	1633.8	0	0	0
4	De Villiers ,H (Hj)	2	0	-425	1	0	-425	1	0	-425	0	0	0
4	De Villiers ,H (Hj)	2	1394.2	969.2	1	1430.4	969.2	1	1144	969.2	0	0	0
5	Grace ,G (Garran)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
5	Grace ,G (Garran)	2	1290.1	1077.6	0	0	0	2	1076.8	1077.6	0	0	0
6	Swanepoel ,W (Wj)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
6	Swanepoel ,W (Wj)	2	1227.9	1440.4	0	0	0	2	1152	1440.4	0	0	0
7	Smit ,A (Albert)	2	1	0	0	0	0	2	1	0	0	0	0
7	Smit ,A (Albert)	2	1464.9	1464.9	0	0	0	2	1258.6	1464.9	0	0	0
8	Molatloe ,K (Keagan)	2	0	-425	0	0	0	2	0	-425	0	0	0
8	Molatloe ,K (Keagan)	2	1206.2	781.2	0	0	0	2	1191	781.2	0	0	0
9	Nyokong ,N (Nyakallo)	2	2	425	0	0	0	2	2	425	0	0	0
9	Nyokong ,N (Nyakallo)	2	1237.3	1662.3	0	0	0	2	1262.7	1662.3	0	0	0
10	Weng ,J (Jack (Xu))	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Weng ,J (Jack (Xu))	1	1248.3	823.3	1	1272	823.3	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

Weng, Y (Yu)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms