Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, L (Louis)

Chess SA id

1110149163

FIDE id

Date of birth

2011-01-24 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1369.7

Item	Main	Standard	Rapid	Blitz
Rating	1474.1	1472.7	1200	1200
Raw rating	1471.6	1469.9	1200	1200
Weighted rating	1474.1	1472.7	1200	1200
Weighted performance	1312.6	1317.6	0	0
Floor	988.2	991.7	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	112.6	112.9	165.8	165.8
Highest rating	1493.8 2024-02-01	1491.7 2025-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1488.2 2025-03-01	1491.7 2025-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1488.2 2025-07-01	1491.7 2025-07-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1493.8 2024-02-01	1490 2024-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.3	0.4	0	0
New rating	1474.3	1473.1	1200	1200
Analysis
Rating	1474.1	1472.7	1200	1200
Raw rating	1471.6	1469.9	1200	1200
Weighted rating	1474.1	1472.7	1200
Weighted performance	1312.6	1317.6	0
K-factor	32	32	36	36
Floor	988.2	991.7	700	700
Max/Min rating change allowed	112.6	112.9	165.8	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	1471.6	1469.9	1200	1200
New weighted rating	1474.3	1473.1	1200	1200
New weighted performance	1312.1	1317.1	0	0
Temp new rating	1474.3	1473.1	1200	1200
Temp new rating +/-	0.3	0.4	0	0
Final new rating +/-	0.3	0.4	0	0
New rating	1474.3	1473.1	1200	1200
New K-factor	32	32	36	36
New floor	988.2	991.7	700	700

Item	Main	Standard
	0	0
	10	10
	53	53
	37	37
	0	0
	0	0
History	100	100

Games since
	Main 63	Standard 63		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	1458		497		182
Male	1242		412		145
U16	194		56		23
U16 Male	155		41		18
Standard
	RSA		Province		Region
Overall	1380		505		191
Male	1161		416		153
U16	193		58		22
U16 Male	152		42		17
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	10	6	60	85	1344.9	1429.9
Standard	10	6	60	85	1344.9	1429.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	100	65	65	127.5	1306.5	1434
Standard	100	65	65	127.5	1306.5	1434
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1471.6	1469.9	1200	1200
2025-09-01	1471.6	1469.9	1200	1200
2025-08-01	1471.6	1469.9	1200	1200
2025-07-01	1488.2	1491.7	1200	1200
2025-06-01	1488.2	1491.7	1200	1200
2025-05-01	1488.2	1491.7	1200	1200
2025-04-01	1488.2	1491.7	1200	1200
2025-03-01	1488.2	1491.7	1200	1200
2025-02-01	1463.7	1460.8	1200	1200
2025-01-01	1463.7	1460.8	1200	1200
2024-12-01	1487.5	1484.8	1200	1200
2024-11-01	1487.5	1484.8	1200	1200
2024-10-01	1487.5	1484.8	1200	1200
2024-09-01	1456.2	1449	1200	1200
2024-08-01	1456.2	1449	1200	1200
2024-07-01	1456.2	1449	1200	1200
2024-06-01	1437.9	1429.8	1200	1200
2024-08-01	1450.4	1444.5	1200	1200
2024-04-01	1450.4	1444.5	1200	1200
2024-03-01	1479	1475.9	1200	1200
2024-02-01	1434.1	1425.7	1200	1200
2024-01-01	1455.7	1452.3	1200	1200
2023-12-01	1455.7	1452.3	1200	1200
2023-11-01	1455.7	1452.3	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	2025 Menlo Open (B)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	Constantiapark Open 2025 (C)	2025-02-15	2025-02-15	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Menlo Open (B)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	Constantiapark Open 2025 (C)	2025-02-15	2025-02-15	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
3	Gauteng Inter-Region at UJ 2024 (U14 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
4	2024 Etienne Lewis (U14)	2024-08-30	2024-09-01	Standard	Tshwane (GTP)	7	7	5	Yes	Analysis
5	2024 Elise Steenkamp Open Chess Tournament (Kings)	2024-06-15	2024-06-17	Standard	Tshwane (GTP)	7	7	3.5	Yes	Analysis
6	2024 Mid Gauteng Open Chess Tournament (U14)	2024-05-02	2024-05-02	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
7	2024 Lubowski Open Chess Tournament (C)	2024-03-23	2024-03-24	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
8	2024 Tshwane Chess AHS Open Chess Tournament (D1)	2024-02-24	2024-02-24	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
9	2024 Constantiapark Open (D1)	2024-02-17	2024-02-17	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
10	2024 Piet Robbertse Open Chess Tournament (D1)	2024-02-03	2024-02-04	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
11	2024 Tshwane Chess OPEN Registration Tournament (C1)	2024-01-27	2024-01-27	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
12	2024 Gauteng Inter-Region Chess Championship (U14B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
13	2023 Centurion Chess Open (D)	2023-09-23	2023-09-23	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
14	2023 Woman's Day Open Chess Tournament (Knight)	2023-08-09	2023-08-09	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
15	2023 Jacaranda Round Robin (I)	2023-08-12	2023-08-12	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
16	2023 Etienne Lewis Closed Tournament (U14)	2023-08-25	2023-08-27	Standard	Tshwane (GTP)	7	7	4.5	Yes	Analysis
17	Wynie Robbertse Open Tournament 2023 (D)	2023-06-03	2023-06-03	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
18	2023 Elize Steenkamp Open Tournament (D2)	2023-06-16	2023-06-17	Standard	Tshwane (GTP)	6	6	6	Yes	Analysis
19	2023 Piet Robbertse Fide Rated Open Chess Tournament (D)	2023-02-04	2023-02-05	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis

#	Games	Start				End
1	12	Tournament Wynie Robbertse Open Tournament 2023				Tournament 2023 Woman's Day Open Chess Tournament
		date 2023-06-03	rnd 3	type Standard	result 1	date 2023-08-09	rnd 3	type Standard	result 1
		Opponent Van Der Walt, H (Henrico)				Opponent Jacobs, H (Hanno)
2	6	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 2024 Piet Robbertse Open Chess Tournament
		date 2024-01-27	rnd 4	type Standard	result 1	date 2024-02-04	rnd 4	type Standard	result 1
		Opponent Reyneke, M (Melindie)				Opponent Lekalakala, B (Bupe Amogelang)
3	5	Tournament 2024 Constantiapark Open				Tournament 2024 Tshwane Chess AHS Open Chess Tournament
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, D (Dandre)				Opponent Pretorius, P (Pieter)

#	Games	Start				End
1	12	Tournament Wynie Robbertse Open Tournament 2023				Tournament 2023 Woman's Day Open Chess Tournament
		date 2023-06-03	rnd 3	type Standard	result 1	date 2023-08-09	rnd 3	type Standard	result 1
		Opponent Van Der Walt, H (Henrico)				Opponent Jacobs, H (Hanno)
2	6	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 2024 Piet Robbertse Open Chess Tournament
		date 2024-01-27	rnd 4	type Standard	result 1	date 2024-02-04	rnd 4	type Standard	result 1
		Opponent Reyneke, M (Melindie)				Opponent Lekalakala, B (Bupe Amogelang)
3	5	Tournament 2024 Constantiapark Open				Tournament 2024 Tshwane Chess AHS Open Chess Tournament
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, D (Dandre)				Opponent Pretorius, P (Pieter)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	12	Tournament Wynie Robbertse Open Tournament 2023				Tournament 2023 Woman's Day Open Chess Tournament
		date 2023-06-03	rnd 3	type Standard	result 1	date 2023-08-09	rnd 3	type Standard	result 1
		Opponent Van Der Walt, H (Henrico)				Opponent Jacobs, H (Hanno)
2	5	Tournament 2024 Constantiapark Open				Tournament 2024 Tshwane Chess AHS Open Chess Tournament
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, D (Dandre)				Opponent Pretorius, P (Pieter)
3	5	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2024-01-13	rnd 2	type Standard	result 1	date 2024-01-27	rnd 1	type Standard	result 1
		Opponent Voogt, R (Ruan)				Opponent King, C (Caleb)

#	Games	Start				End
1	12	Tournament Wynie Robbertse Open Tournament 2023				Tournament 2023 Woman's Day Open Chess Tournament
		date 2023-06-03	rnd 3	type Standard	result 1	date 2023-08-09	rnd 3	type Standard	result 1
		Opponent Van Der Walt, H (Henrico)				Opponent Jacobs, H (Hanno)
2	5	Tournament 2024 Constantiapark Open				Tournament 2024 Tshwane Chess AHS Open Chess Tournament
		date 2024-02-17	rnd 3	type Standard	result 1	date 2024-02-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, D (Dandre)				Opponent Pretorius, P (Pieter)
3	5	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2024-01-13	rnd 2	type Standard	result 1	date 2024-01-27	rnd 1	type Standard	result 1
		Opponent Voogt, R (Ruan)				Opponent King, C (Caleb)

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	Van Der Walt ,H (Henrico)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Van Der Walt ,H (Henrico)	3	1303.8	1303.8	3	1294.6	1303.8	0	0	0	0	0	0
2	Bogaard ,FK (Franco Konrad)	2	2	425	2	2	425	0	0	0	0	0	0
2	Bogaard ,FK (Franco Konrad)	2	1358.5	1783.5	2	1350.3	1783.5	0	0	0	0	0	0
3	Bogaard ,A (Anneke)	2	2	425	2	2	425	0	0	0	0	0	0
3	Bogaard ,A (Anneke)	2	1116.2	1541.2	2	1107.5	1541.2	0	0	0	0	0	0
4	Pretorius ,P (Pieter)	2	2	425	2	2	425	0	0	0	0	0	0
4	Pretorius ,P (Pieter)	2	1196.2	1621.2	2	1192.6	1621.2	0	0	0	0	0	0
5	Slabbert ,ZN (Zander Nicolaas)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Slabbert ,ZN (Zander Nicolaas)	2	1522.6	1310.1	2	1514.6	1310.1	0	0	0	0	0	0
6	Mathe ,T (Thabang)	2	1	0	2	1	0	0	0	0	0	0	0
6	Mathe ,T (Thabang)	2	1387.6	1387.6	2	1384.3	1387.6	0	0	0	0	0	0
7	Boshoff ,R (Reinhardt)	2	2	425	2	2	425	0	0	0	0	0	0
7	Boshoff ,R (Reinhardt)	2	1374.2	1799.2	2	1360.9	1799.2	0	0	0	0	0	0
8	Van Rooyen ,D (Dandre)	2	2	425	2	2	425	0	0	0	0	0	0
8	Van Rooyen ,D (Dandre)	2	1336.2	1761.2	2	1337.1	1761.2	0	0	0	0	0	0
9	Madiba ,K (Kutlwano)	2	1	0	2	1	0	0	0	0	0	0	0
9	Madiba ,K (Kutlwano)	2	1300.8	1300.8	2	1299.8	1300.8	0	0	0	0	0	0
10	Gololo ,T (Tiisetso)	2	1	0	2	1	0	0	0	0	0	0	0
10	Gololo ,T (Tiisetso)	2	1200.3	1200.3	2	1195.2	1200.3	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

Van Der Merwe, L (Louis)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms