Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, L (Luan)

Chess SA id

1130150461

FIDE id

Date of birth

2013-02-07 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1152.2	1124.6	1218.7	1200
Raw rating	1127.3	1088.5	1218.7	1200
Weighted rating	1152.2	1124.6	1213	1200
Weighted performance	0	0	0	0
Floor	700	700	718.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	183.9	194.4	161.4	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1218.7 2025-03-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1218.7 2025-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1208.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.1	-3.5	0	0
New rating	1150.1	1121.1	1218.7	1200
Analysis
Rating	1152.2	1124.6	1218.7	1200
Raw rating	1127.3	1088.5	1218.7	1200
Weighted rating	1152.2	1124.6	1213
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	718.7	700
Max/Min rating change allowed	183.9	194.4	161.4	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	1127.3	1088.5	1218.7	1200
New weighted rating	1150.1	1121.1	1213.9	1200
New weighted performance	0	0	0	0
Temp new rating	1150.1	1121.1	1218.7	1200
Temp new rating +/-	-2.1	-3.5	0	0
Final new rating +/-	-2.1	-3.5	0	0
New rating	1150.1	1121.1	1218.7	1200
New K-factor	36	36	36	36
New floor	700	700	718.7	700

Item	Main	Standard	Rapid
	0	0	0
	16	10	6
	0	0	0
	3	3	0
	0	0	0
	0	0	0
History	19	13	6

Games since
	Main 16	Standard 10		Rapid 6		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	16	4.5	28.12	-185.9	1318.8	1132.9
Standard	10	1	10	-340	1370.9	1030.9
Rapid	6	3.5	58.33	70.8	1232	1302.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	19	4.5	23.68	-223.7	1300.1	1076.4
Standard	13	1	7.69	-359.6	1331.5	971.9
Rapid	6	3.5	58.33	70.8	1232	1302.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1127.3	1088.5	1218.7	1200
2025-11-30	1127.3	1088.5	1218.7	1200
2025-11-01	1127.3	1088.5	1218.7	1200
2025-09-30	1127.3	1088.5	1218.7	1200
2025-09-01	1156	1124.9	1218.7	1200
2025-08-01	1174.6	1141.6	1218.7	1200
2025-07-01	1174.6	1141.6	1218.7	1200
2025-06-01	1174.6	1141.6	1218.7	1200
2025-05-01	1174.6	1141.6	1218.7	1200
2025-04-01	1174.6	1141.6	1218.7	1200
2025-03-01	1174.6	1141.6	1218.7	1200
2025-02-01	1151.5	1141.6	1200	1200
2025-01-01	1151.5	1141.6	1200	1200
2024-12-01	1151.5	1141.6	1200	1200
2024-11-01	1151.5	1141.6	1200	1200
2024-10-01	1151.5	1141.6	1200	1200
2024-09-01	1151.5	1141.6	1200	1200
2024-11-01	1151.5	1141.6	1200	1200
2024-07-01	1151.5	1141.6	1200	1200
2024-06-01	1151.5	1141.6	1200	1200
2024-05-01	1151.5	1141.6	1200	1200
2024-04-01	1151.5	1141.6	1200	1200
2024-03-01	1151.5	1141.6	1200	1200
2024-02-01	1151.5	1141.6	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	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	0	Yes	Analysis
2	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
3	Overberg Schools - PS Closed 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	0	0	No	Analysis
4	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
5	North District School Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	3	0	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Swart, J (Jayden)				Opponent Harris, K (Kingston Ray)
2	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Cupido, S (Seth)				Opponent Cupido, S (Seth)
3	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 6	type Rapid	result 0.5	date 2025-02-22	rnd 6	type Rapid	result 0.5
		Opponent Cloete, K (Keanu)				Opponent Cloete, K (Keanu)

#	Games	Start				End
1	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Cupido, S (Seth)				Opponent Cupido, S (Seth)

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Swart, J (Jayden)				Opponent Harris, K (Kingston Ray)
2	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 6	type Rapid	result 0.5	date 2025-02-22	rnd 6	type Rapid	result 0.5
		Opponent Cloete, K (Keanu)				Opponent Cloete, K (Keanu)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Swart, J (Jayden)				Opponent Harris, K (Kingston Ray)
2	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Cupido, S (Seth)				Opponent Cupido, S (Seth)

#	Games	Start				End
1	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Cupido, S (Seth)				Opponent Cupido, S (Seth)

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Swart, J (Jayden)				Opponent Harris, K (Kingston Ray)

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	Stephanus ,S (Shagen-Lee)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Stephanus ,S (Shagen-Lee)	1	1182.1	757.1	1	1171.4	757.1	0	0	0	0	0	0
2	He ,Z (Zonghan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	He ,Z (Zonghan)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Cupido ,S (Seth)	1	1	425	1	1	425	0	0	0	0	0	0
3	Cupido ,S (Seth)	1	1199.8	1624.8	1	1200	1624.8	0	0	0	0	0	0
4	Cazes ,A (Akhikhaya)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Cazes ,A (Akhikhaya)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Mncube ,S (Sifiso)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mncube ,S (Sifiso)	1	1596.8	1171.8	1	1596	1171.8	0	0	0	0	0	0
6	Titus ,J (Jordyn)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Titus ,J (Jordyn)	1	1389	964	1	1331.8	964	0	0	0	0	0	0
7	Kruger ,C (Carel)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kruger ,C (Carel)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Viljoen ,P (Pieter)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Viljoen ,P (Pieter)	1	1440.3	1015.3	1	1454.8	1015.3	0	0	0	0	0	0
9	Mackenzie ,T (Tayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mackenzie ,T (Tayden)	1	1544.3	1119.3	1	1522.2	1119.3	0	0	0	0	0	0
10	Gouveia Goncalves ,I (Isabella)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Gouveia Goncalves ,I (Isabella)	1	1199.6	774.6	1	1199.8	774.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Van Der Merwe, L (Luan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms