Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, M (Mignon)

Chess SA id

2130140301

FIDE id

Date of birth

2013-10-02 (U14)

Gender

Female

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1357.4

Item	Main	Standard	Rapid	Blitz
Rating	1307.1	1319.3	1200	1200
Raw rating	1307.1	1319.3	1200	1200
Weighted rating	1262.9	1269.8	1200	1200
Weighted performance	1275.7	1273.3	0	0
Floor	810.4	825.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	142.3	139.9	165.8	165.8
Highest rating	1310.4 2025-08-01	1325.1 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1310.4 2025-08-01	1325.1 2025-08-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1262.9 2025-11-01	1269.8 2025-11-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1298.9 2022-05-01	1299.8 2022-05-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1307.1	1319.3	1200	1200
Analysis
Rating	1307.1	1319.3	1200	1200
Raw rating	1307.1	1319.3	1200	1200
Weighted rating	1262.9	1269.8	1200
Weighted performance	1275.7	1273.3	0
K-factor	36	36	36	36
Floor	810.4	825.1	700	700
Max/Min rating change allowed	142.3	139.9	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	1307.1	1319.3	1200	1200
New weighted rating	1267.4	1274.8	1200	1200
New weighted performance	1267.7	1265.4	0	0
Temp new rating	1307.1	1319.3	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1307.1	1319.3	1200	1200
New K-factor	36	36	36	36
New floor	810.4	825.1	700	700

Item	Main	Standard
	0	0
	14	14
	8	8
	4	4
	5	5
	0	0
History	31	31

Games since
	Main 22	Standard 22		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	14	10	71.43	182.1	1212.2	1394.4
Standard	14	10	71.43	182.1	1212.2	1394.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	31	20	64.52	123.4	1213	1336.4
Standard	31	20	64.52	123.4	1213	1336.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1307.1	1319.3	1200	1200
2025-09-30	1310.4	1325.1	1200	1200
2025-09-01	1310.4	1325.1	1200	1200
2025-08-01	1310.4	1325.1	1200	1200
2025-07-01	1246.1	1248.8	1200	1200
2025-06-01	1246.1	1248.8	1200	1200
2025-05-01	1245.5	1249.6	1200	1200
2025-04-01	1245.5	1249.6	1200	1200
2025-03-01	1245.5	1249.6	1200	1200
2025-02-01	1245.5	1249.6	1200	1200
2025-01-01	1245.5	1249.6	1200	1200
2024-12-01	1245.5	1249.6	1200	1200
2024-11-01	1245.5	1249.6	1200	1200
2024-10-01	1245.5	1249.6	1200	1200
2024-09-01	1245.5	1249.6	1200	1200
2024-08-01	1245.5	1249.6	1200	1200
2024-07-01	1236.8	1240.6	1200	1200
2024-09-01	1236.8	1240.6	1200	1200
2024-05-01	1224.5	1228.7	1200	1200
2024-04-01	1224.5	1228.7	1200	1200
2024-03-01	1224.5	1228.7	1200	1200
2024-02-01	1224.5	1228.7	1200	1200
2024-01-01	1224.5	1228.7	1200	1200
2023-12-01	1224.5	1228.7	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 Gauteng Top Schools Teams (U13 Girls)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2025 D2 Schools League Finals (U13 Girls)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	5	Yes	Analysis
3	2025 D2 Schools Individuals (U13 Girls)	2025-05-09	2025-05-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U13 Girls)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2025 D2 Schools League Finals (U13 Girls)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	5	Yes	Analysis
3	2025 D2 Schools Individuals (U13 Girls)	2025-05-09	2025-05-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
4	D2 School League Finals 2024 (U13 Girls)	2024-07-20	2024-07-20	Standard	West Rand (GWR)	5	3	2	Yes	Analysis
5	2024 D2 Schools Individuals (U11 Girls)	2024-05-04	2024-05-04	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
6	D2 School League Finals 2023 (U11)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	5	4	2	Yes	Analysis
7	D2 Schools Individuals 2022 (U9)	2022-05-07	2022-05-07	Standard	West Rand (GWR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	8	Tournament 2025 D2 Schools Individuals				Tournament 2025 Gauteng Top Schools Teams
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-08-29	rnd 1	type Standard	result 1
		Opponent Machusi, T (Tshireletso)				Opponent Pillay, B (Bethlehem)
2	3	Tournament 2024 D2 Schools Individuals				Tournament D2 School League Finals 2024
		date 2024-05-04	rnd 5	type Standard	result 1	date 2024-07-20	rnd 3	type Standard	result 1
		Opponent Fouche, M (Mieke)				Opponent Human, D (Dunay)
3	2	Tournament 2024 D2 Schools Individuals				Tournament 2024 D2 Schools Individuals
		date 2024-05-04	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Mbele, L (Lesego)				Opponent Nhlumayo, S (Sbongile Refilwe)

#	Games	Start				End
1	7	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools League Finals
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Machusi, T (Tshireletso)				Opponent Fuel, P (Priscilla)
2	3	Tournament 2024 D2 Schools Individuals				Tournament D2 School League Finals 2024
		date 2024-05-04	rnd 5	type Standard	result 1	date 2024-07-20	rnd 3	type Standard	result 1
		Opponent Fouche, M (Mieke)				Opponent Human, D (Dunay)
3	2	Tournament 2024 D2 Schools Individuals				Tournament 2024 D2 Schools Individuals
		date 2024-05-04	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Mbele, L (Lesego)				Opponent Nhlumayo, S (Sbongile Refilwe)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools League Finals
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Machusi, T (Tshireletso)				Opponent Fuel, P (Priscilla)
2	3	Tournament 2024 D2 Schools Individuals				Tournament D2 School League Finals 2024
		date 2024-05-04	rnd 5	type Standard	result 1	date 2024-07-20	rnd 3	type Standard	result 1
		Opponent Fouche, M (Mieke)				Opponent Human, D (Dunay)
3	2	Tournament 2024 D2 Schools Individuals				Tournament 2024 D2 Schools Individuals
		date 2024-05-04	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Mbele, L (Lesego)				Opponent Nhlumayo, S (Sbongile Refilwe)

#	Games	Start				End
1	7	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools League Finals
		date 2025-05-09	rnd 4	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Machusi, T (Tshireletso)				Opponent Fuel, P (Priscilla)
2	3	Tournament 2024 D2 Schools Individuals				Tournament D2 School League Finals 2024
		date 2024-05-04	rnd 5	type Standard	result 1	date 2024-07-20	rnd 3	type Standard	result 1
		Opponent Fouche, M (Mieke)				Opponent Human, D (Dunay)
3	2	Tournament 2024 D2 Schools Individuals				Tournament 2024 D2 Schools Individuals
		date 2024-05-04	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Mbele, L (Lesego)				Opponent Nhlumayo, S (Sbongile Refilwe)

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	Lokwe ,S (Simthandile)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Lokwe ,S (Simthandile)	2	1424.8	999.8	2	1424.4	999.8	0	0	0	0	0	0
2	Redelinghuys ,J (Jade)	2	2	425	2	2	425	0	0	0	0	0	0
2	Redelinghuys ,J (Jade)	2	1128.8	1553.8	2	1119.8	1553.8	0	0	0	0	0	0
3	Mulovhedzi ,NL (Ndodzo Lisa)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mulovhedzi ,NL (Ndodzo Lisa)	1	1182.1	757.1	1	1178.7	757.1	0	0	0	0	0	0
4	Fuel ,P (Priscilla)	1	1	425	1	1	425	0	0	0	0	0	0
4	Fuel ,P (Priscilla)	1	1200	1625	1	1200.2	1625	0	0	0	0	0	0
5	Nhlumayo ,S (Sbongile Refilwe)	1	1	425	1	1	425	0	0	0	0	0	0
5	Nhlumayo ,S (Sbongile Refilwe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Benadie ,L (Leo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Benadie ,L (Leo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Mbele ,L (Lesego)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mbele ,L (Lesego)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Galeboe ,P (Palesa Mpho)	1	1	425	1	1	425	0	0	0	0	0	0
8	Galeboe ,P (Palesa Mpho)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Fourie ,T (Theo)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Fourie ,T (Theo)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Van Staden ,C (Claire)	1	1	425	1	1	425	0	0	0	0	0	0
10	Van Staden ,C (Claire)	1	1200	1625	1	1200	1625	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, M (Mignon)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms