Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Vries, M (Markus)

Chess SA id

1140310481

FIDE id

Date of birth

2014-06-11 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1349.2

Item	Main	Standard	Rapid	Blitz
Rating	1246.9	1257.1	1200	1200
Raw rating	1246.9	1257.1	1200	1200
Weighted rating	1219.3	1223.9	1200	1200
Weighted performance	0	0	0	0
Floor	746.9	757.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.1	152.8	165.8	165.8
Highest rating	1246.9 2025-06-01	1257.1 2025-06-01	1200 2024-10-01	1200 2024-10-01
Highest raw rating	1246.9 2025-06-01	1257.1 2025-06-01	1200 2024-10-01	1200 2024-10-01
Highest weighted rating	1209.7 2025-08-01	1212.3 2025-08-01	1200 2024-10-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1246.9	1257.1	1200	1200
Analysis
Rating	1246.9	1257.1	1200	1200
Raw rating	1246.9	1257.1	1200	1200
Weighted rating	1219.3	1223.9	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	746.9	757.1	700	700
Max/Min rating change allowed	155.1	152.8	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	1246.9	1257.1	1200	1200
New weighted rating	1222.2	1227.4	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1246.9	1257.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1246.9	1257.1	1200	1200
New K-factor	36	36	36	36
New floor	746.9	757.1	700	700

Item	Main	Standard
	0	0
	5	5
	10	10
	0	0
	0	0
	0	0
History	15	15

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	5	4	80	255	1210.5	1465.5
Standard	5	4	80	255	1210.5	1465.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	8	53.33	28.3	1254.2	1282.5
Standard	15	8	53.33	28.3	1254.2	1282.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1246.9	1257.1	1200	1200
2025-09-30	1246.9	1257.1	1200	1200
2025-09-01	1246.9	1257.1	1200	1200
2025-08-01	1246.9	1257.1	1200	1200
2025-07-01	1246.9	1257.1	1200	1200
2025-06-01	1246.9	1257.1	1200	1200
2025-05-01	1198.8	1199.1	1200	1200
2025-04-01	1198.8	1199.1	1200	1200
2025-03-01	1198.8	1199.1	1200	1200
2025-02-01	1198.7	1199.1	1200	1200
2025-01-01	1196.7	1198	1200	1200
2024-12-01	1196.7	1198	1200	1200
2024-11-01	1196.7	1198	1200	1200
2024-10-01	1195.4	1194.8	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	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	Ekurhuleni South District Primary Schools 2025 (U11 Boys)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni South District Primary Schools 2025 (U11 Boys)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
2	Gauteng Top Schools 2024 (U11 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	Gauteng Schools Individuals Finals 2024 (U11 Boys)	2024-08-16	2024-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Gauteng Top Schools 2024				Tournament Ekurhuleni South District Primary Schools 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Koekemoer, L (Luhan)				Opponent Tafeni, B (Banathi)
2	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Human, M (Michael Anthony)				Opponent Nkosi, S (Sfiso)
3	1	Tournament Ekurhuleni South District Primary Schools 2025				Tournament Ekurhuleni South District Primary Schools 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Pretorius, L (Liam)				Opponent Pretorius, L (Liam)

#	Games	Start				End
1	4	Tournament Gauteng Top Schools 2024				Tournament Ekurhuleni South District Primary Schools 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Koekemoer, L (Luhan)				Opponent Tafeni, B (Banathi)
2	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Human, M (Michael Anthony)				Opponent Nkosi, S (Sfiso)
3	1	Tournament Ekurhuleni South District Primary Schools 2025				Tournament Ekurhuleni South District Primary Schools 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Pretorius, L (Liam)				Opponent Pretorius, L (Liam)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Gauteng Top Schools 2024				Tournament Ekurhuleni South District Primary Schools 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Koekemoer, L (Luhan)				Opponent Tafeni, B (Banathi)
2	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Human, M (Michael Anthony)				Opponent Nkosi, S (Sfiso)
3	1	Tournament Ekurhuleni South District Primary Schools 2025				Tournament Ekurhuleni South District Primary Schools 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Pretorius, L (Liam)				Opponent Pretorius, L (Liam)

#	Games	Start				End
1	4	Tournament Gauteng Top Schools 2024				Tournament Ekurhuleni South District Primary Schools 2025
		date 2024-10-04	rnd 5	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Koekemoer, L (Luhan)				Opponent Tafeni, B (Banathi)
2	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-08-16	rnd 5	type Standard	result 1
		Opponent Human, M (Michael Anthony)				Opponent Nkosi, S (Sfiso)
3	1	Tournament Ekurhuleni South District Primary Schools 2025				Tournament Ekurhuleni South District Primary Schools 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Pretorius, L (Liam)				Opponent Pretorius, L (Liam)

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	Prinsloo ,V (Veronique)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Prinsloo ,V (Veronique)	1	1328.3	903.3	1	1325.3	903.3	0	0	0	0	0	0
2	Khumalo ,ME (Musawenkosi Ethan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Khumalo ,ME (Musawenkosi Ethan)	1	1225.7	800.7	1	1210.1	800.7	0	0	0	0	0	0
3	Maree ,M (Morgan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Maree ,M (Morgan)	1	1247.5	822.5	1	1236.7	822.5	0	0	0	0	0	0
4	Mtabela ,N (Nkanyezi)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mtabela ,N (Nkanyezi)	1	1278.2	1703.2	1	1295.1	1703.2	0	0	0	0	0	0
5	Koekemoer ,L (Luhan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Koekemoer ,L (Luhan)	1	1256.4	1681.4	1	1265.9	1681.4	0	0	0	0	0	0
6	Kaduku ,J (Jayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kaduku ,J (Jayden)	1	1241.2	816.2	1	1249.4	816.2	0	0	0	0	0	0
7	Vis ,K (Katlego)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Vis ,K (Katlego)	1	1377.7	952.7	1	1370.7	952.7	0	0	0	0	0	0
8	Pretorius ,L (Liam)	1	1	425	1	1	425	0	0	0	0	0	0
8	Pretorius ,L (Liam)	1	1203.2	1628.2	1	1197	1628.2	0	0	0	0	0	0
9	Nkosi ,S (Sfiso)	1	1	425	1	1	425	0	0	0	0	0	0
9	Nkosi ,S (Sfiso)	1	1266.4	1691.4	1	1280	1691.4	0	0	0	0	0	0
10	Ndlela ,S (Sibanisami)	1	1	425	1	1	425	0	0	0	0	0	0
10	Ndlela ,S (Sibanisami)	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

De Vries, M (Markus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms