Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lyu, Y (Yichen)

Chess SA id

1090114202

FIDE id

Date of birth

2009-10-22 (U18)

Gender

Male

Region

iLembe (KIK)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-05-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1223.4	1261.9	1118	1200
Raw rating	1223.4	1261.9	1118	1200
Weighted rating	1216.4	1256.1	1118	1200
Weighted performance	0	0	0	0
Floor	723.4	761.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.4	151.8	186.4	165.8
Highest rating	1223.4 2024-06-01	1454.1 2024-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1223.4 2024-06-01	1261.9 2024-06-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1223.4 2018-10-01	1252.6 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1454.1 2024-05-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1223.4	1261.9	1118	1200
Analysis
Rating	1223.4	1261.9	1118	1200
Raw rating	1223.4	1261.9	1118	1200
Weighted rating	1216.4	1256.1	1118
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	723.4	761.9	700	700
Max/Min rating change allowed	160.4	151.8	186.4	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	1223.4	1261.9	1118	1200
New weighted rating	1218.2	1257.6	1118	1200
New weighted performance	0	0	0	0
Temp new rating	1223.4	1261.9	1118	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1223.4	1261.9	1118	1200
New K-factor	36	36	36	36
New floor	723.4	761.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	6	6	0
	0	0	0
	0	0	0
	0	0	0
History	12	6	6

Games since
	Main 6	Standard 6		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	iLembe (KIK)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	12	6	50	0	1182.2	1182.2
Standard	6	4	66.67	141.7	1329.3	1471
Rapid	6	2	33.33	-141.7	1035.1	893.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1223.4	1261.9	1118	1200
2025-09-01	1223.4	1261.9	1118	1200
2025-08-01	1223.4	1261.9	1118	1200
2025-07-01	1223.4	1261.9	1118	1200
2025-06-01	1223.4	1261.9	1118	1200
2025-05-01	1223.4	1261.9	1118	1200
2025-04-01	1223.4	1261.9	1118	1200
2025-03-01	1223.4	1261.9	1118	1200
2025-02-01	1223.4	1261.9	1118	1200
2025-01-01	1223.4	1261.9	1118	1200
2024-12-01	1223.4	1261.9	1118	1200
2024-11-01	1223.4	1261.9	1118	1200
2024-10-01	1223.4	1261.9	1118	1200
2024-09-01	1223.4	1261.9	1118	1200
2024-08-01	1223.4	1261.9	1118	1200
2024-07-01	1223.4	1261.9	1118	1200
2024-06-01	1223.4	1261.9	1118	1200
2024-08-01	1148.4	1200	1118	1200
2024-04-01	1148.4	1200	1118	1200
2024-03-01	1148.4	1200	1118	1200
2024-02-01	1148.4	1200	1118	1200
2024-01-01	1148.4	1200	1118	1200
2023-12-01	1148.4	1200	1118	1200
2023-11-01	1148.4	1200	1118	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	2024 ECA 2nd Youth Trials (U16)	2024-05-18	2024-05-19	Standard	Ethekwini (KED)	6	6	4	Yes	Analysis
2	Centenary Chess Tournament 2019 (Senior Primary)	2019-05-11	2019-05-11	Rapid	iLembe (KIK)	6	6	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-18	rnd 1	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent Ntenga, G (Genius)				Opponent Mkhize, O (Olebogeng)
2	2	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-19	rnd 5	type Standard	result 0.5	date 2024-05-19	rnd 6	type Standard	result 1
		Opponent Narainsamy, T (Taygen)				Opponent Mngadi, F (Fredrick)
3	2	Tournament Centenary Chess Tournament 2019				Tournament Centenary Chess Tournament 2019
		date 2019-05-11	rnd 2	type Rapid	result 1	date 2019-05-11	rnd 3	type Rapid	result 1
		Opponent Sagathavan, D (Deeyasha)				Opponent Luthuli, K (Khwezi)

#	Games	Start				End
1	3	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-18	rnd 1	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent Ntenga, G (Genius)				Opponent Mkhize, O (Olebogeng)
2	2	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-19	rnd 5	type Standard	result 0.5	date 2024-05-19	rnd 6	type Standard	result 1
		Opponent Narainsamy, T (Taygen)				Opponent Mngadi, F (Fredrick)

#	Games	Start				End
1	2	Tournament Centenary Chess Tournament 2019				Tournament Centenary Chess Tournament 2019
		date 2019-05-11	rnd 2	type Rapid	result 1	date 2019-05-11	rnd 3	type Rapid	result 1
		Opponent Sagathavan, D (Deeyasha)				Opponent Luthuli, K (Khwezi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Centenary Chess Tournament 2019				Tournament Centenary Chess Tournament 2019
		date 2019-05-11	rnd 2	type Rapid	result 1	date 2019-05-11	rnd 3	type Rapid	result 1
		Opponent Sagathavan, D (Deeyasha)				Opponent Luthuli, K (Khwezi)
2	1	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-19	rnd 6	type Standard	result 1	date 2024-05-19	rnd 6	type Standard	result 1
		Opponent Mngadi, F (Fredrick)				Opponent Mngadi, F (Fredrick)
3	1	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-18	rnd 3	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent Mkhize, O (Olebogeng)				Opponent Mkhize, O (Olebogeng)

#	Games	Start				End
1	1	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-19	rnd 6	type Standard	result 1	date 2024-05-19	rnd 6	type Standard	result 1
		Opponent Mngadi, F (Fredrick)				Opponent Mngadi, F (Fredrick)
2	1	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-18	rnd 3	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent Mkhize, O (Olebogeng)				Opponent Mkhize, O (Olebogeng)
3	1	Tournament 2024 ECA 2nd Youth Trials				Tournament 2024 ECA 2nd Youth Trials
		date 2024-05-18	rnd 1	type Standard	result 1	date 2024-05-18	rnd 1	type Standard	result 1
		Opponent Ntenga, G (Genius)				Opponent Ntenga, G (Genius)

#	Games	Start				End
1	2	Tournament Centenary Chess Tournament 2019				Tournament Centenary Chess Tournament 2019
		date 2019-05-11	rnd 2	type Rapid	result 1	date 2019-05-11	rnd 3	type Rapid	result 1
		Opponent Sagathavan, D (Deeyasha)				Opponent Luthuli, K (Khwezi)

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	Narainsamy ,T (Taygen)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Narainsamy ,T (Taygen)	1	1395.4	1395.4	1	1392.1	1395.4	0	0	0	0	0	0
2	Ntenga ,G (Genius)	1	1	425	1	1	425	0	0	0	0	0	0
2	Ntenga ,G (Genius)	1	1256.8	1681.8	1	1176.8	1681.8	0	0	0	0	0	0
3	Mkhize ,O (Olebogeng)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mkhize ,O (Olebogeng)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Magudulela ,N (Ndumiso)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Magudulela ,N (Ndumiso)	1	1453.9	1028.9	1	1453.1	1028.9	0	0	0	0	0	0
5	Subramoney ,R (Riaan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Subramoney ,R (Riaan)	1	1407.3	1407.3	1	1399.2	1407.3	0	0	0	0	0	0
6	Mngadi ,F (Fredrick)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mngadi ,F (Fredrick)	1	1262.4	1687.4	1	1200	1687.4	0	0	0	0	0	0
7	Luthuli ,K (Khwezi)	1	1	425	0	0	0	1	1	425	0	0	0
7	Luthuli ,K (Khwezi)	1	803.8	1228.8	0	0	0	1	1181.6	1228.8	0	0	0
8	Sagathavan ,D (Deeyasha)	1	1	425	0	0	0	1	1	425	0	0	0
8	Sagathavan ,D (Deeyasha)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Jugree ,A (Arav)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Jugree ,A (Arav)	1	1145.5	720.5	0	0	0	1	1167.3	720.5	0	0	0
10	Bhatia ,A (Aarshbir)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Bhatia ,A (Aarshbir)	1	1075.1	650.1	0	0	0	1	1200	650.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Lyu, Y (Yichen)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms