Chess South Africa Ratings Database

PLAYER PAGE

Personal

Marais, E (Ewald Pierre)

Chess SA id

1150156375

FIDE id

Date of birth

2015-04-14 (U12)

Gender

Male

Region

West Rand (GWR)

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

Item	Main	Standard	Rapid	Blitz
Rating	1146.2	1142.9	1200	1200
Raw rating	1146.2	1142.9	1200	1200
Weighted rating	1144.6	1139.7	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	179	179.9	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1146.2	1142.9	1200	1200
Analysis
Rating	1146.2	1142.9	1200	1200
Raw rating	1146.2	1142.9	1200	1200
Weighted rating	1144.6	1139.7	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	179	179.9	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	1146.2	1142.9	1200	1200
New weighted rating	1145	1140.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1146.2	1142.9	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1146.2	1142.9	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	5	5
	5	5
	10	10
	0	0
	0	0
History	20	20

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	West Rand (GWR)
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	2	40	-85	1236.4	1151.4
Standard	5	2	40	-85	1236.4	1151.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	20	7	35	-127.5	1215.1	1087.6
Standard	20	7	35	-127.5	1215.1	1087.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1146.2	1142.9	1200	1200
2025-09-01	1146.2	1142.9	1200	1200
2025-08-01	1146.2	1142.9	1200	1200
2025-07-01	1146.8	1142	1200	1200
2025-06-01	1146.8	1142	1200	1200
2025-05-01	1146.8	1142	1200	1200
2025-04-01	1146.8	1142	1200	1200
2025-03-01	1146.8	1142	1200	1200
2025-02-01	1146.8	1142	1200	1200
2025-01-01	1146.8	1142	1200	1200
2024-12-01	1146.8	1142	1200	1200
2024-11-01	1146.8	1142	1200	1200
2024-10-01	1146.8	1142	1200	1200
2024-09-01	1146.8	1142	1200	1200
2024-08-01	1146.8	1142	1200	1200
2024-07-01	1133.4	1125.1	1200	1200
2024-06-01	1133.4	1125.1	1200	1200
2024-08-01	1133.4	1125.1	1200	1200
2024-04-01	1133.4	1125.1	1200	1200
2024-03-01	1133.4	1125.1	1200	1200
2024-02-01	1133.4	1125.1	1200	1200
2024-01-01	1133.4	1125.1	1200	1200
2023-12-01	1133.4	1125.1	1200	1200
2023-11-01	1133.4	1125.1	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 D2 Schools League Finals (U11)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 D2 Schools League Finals (U11)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
2	D2 School League Finals 2024 (U9)	2024-07-20	2024-07-20	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
3	D2 School League Finals 2023 (U9)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	7	5	1	Yes	Analysis
4	D2 Schools Individuals 2023 (U9 Boys+Girls)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Tshangela, T (Thando)				Opponent Mokotedi, M (Mpho Wonderboy)
2	2	Tournament D2 Schools Individuals 2023				Tournament D2 School League Finals 2023
		date 2023-05-13	rnd 5	type Standard	result 0.5	date 2023-07-22	rnd 2	type Standard	result 1
		Opponent Mosielele, L (Lesego Kwanele)				Opponent Pretorius, S (Stefan)
3	1	Tournament D2 School League Finals 2024				Tournament D2 School League Finals 2024
		date 2024-07-20	rnd 5	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Crous, R (Ruvan)				Opponent Crous, R (Ruvan)

#	Games	Start				End
1	2	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Tshangela, T (Thando)				Opponent Mokotedi, M (Mpho Wonderboy)
2	2	Tournament D2 Schools Individuals 2023				Tournament D2 School League Finals 2023
		date 2023-05-13	rnd 5	type Standard	result 0.5	date 2023-07-22	rnd 2	type Standard	result 1
		Opponent Mosielele, L (Lesego Kwanele)				Opponent Pretorius, S (Stefan)
3	1	Tournament D2 School League Finals 2024				Tournament D2 School League Finals 2024
		date 2024-07-20	rnd 5	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Crous, R (Ruvan)				Opponent Crous, R (Ruvan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Tshangela, T (Thando)				Opponent Mokotedi, M (Mpho Wonderboy)
2	1	Tournament D2 School League Finals 2024				Tournament D2 School League Finals 2024
		date 2024-07-20	rnd 5	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Crous, R (Ruvan)				Opponent Crous, R (Ruvan)
3	1	Tournament D2 School League Finals 2024				Tournament D2 School League Finals 2024
		date 2024-07-20	rnd 3	type Standard	result 1	date 2024-07-20	rnd 3	type Standard	result 1
		Opponent Duvenage, H (Hermie)				Opponent Duvenage, H (Hermie)

#	Games	Start				End
1	2	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Tshangela, T (Thando)				Opponent Mokotedi, M (Mpho Wonderboy)
2	1	Tournament D2 School League Finals 2024				Tournament D2 School League Finals 2024
		date 2024-07-20	rnd 5	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Crous, R (Ruvan)				Opponent Crous, R (Ruvan)
3	1	Tournament D2 School League Finals 2024				Tournament D2 School League Finals 2024
		date 2024-07-20	rnd 3	type Standard	result 1	date 2024-07-20	rnd 3	type Standard	result 1
		Opponent Duvenage, H (Hermie)				Opponent Duvenage, H (Hermie)

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	Botha ,AZ (Adriaan Zander)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Botha ,AZ (Adriaan Zander)	2	1324.8	899.8	2	1346.8	899.8	0	0	0	0	0	0
2	Mosielele ,L (Lesego Kwanele)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Mosielele ,L (Lesego Kwanele)	2	1179.4	966.9	2	1175.5	966.9	0	0	0	0	0	0
3	Crous ,R (Ruvan)	2	1	0	2	1	0	0	0	0	0	0	0
3	Crous ,R (Ruvan)	2	1226.9	1226.9	2	1220.6	1226.9	0	0	0	0	0	0
4	Duvenage ,H (Hermie)	1	1	425	1	1	425	0	0	0	0	0	0
4	Duvenage ,H (Hermie)	1	1186.9	1611.9	1	1184.2	1611.9	0	0	0	0	0	0
5	Pretorius ,S (Stefan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Pretorius ,S (Stefan)	1	1061.4	1486.4	1	1067	1486.4	0	0	0	0	0	0
6	Steyn ,K (Kihan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Steyn ,K (Kihan)	1	1146.5	721.5	1	1200	721.5	0	0	0	0	0	0
7	Van Der Merwe ,J (Jayden)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Van Der Merwe ,J (Jayden)	1	1329.7	1329.7	1	1326.6	1329.7	0	0	0	0	0	0
8	Coetzer ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Coetzer ,L (Logan)	1	1219.9	794.9	1	1224.4	794.9	0	0	0	0	0	0
9	Van Tonder ,J (Jennike)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Tonder ,J (Jennike)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Cronje ,W (Weyan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Cronje ,W (Weyan)	1	1232.8	807.8	1	1240.3	807.8	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

Marais, E (Ewald Pierre)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms