Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Bruin, E (EJ)

Chess SA id

1150319287

FIDE id

Date of birth

2015-04-17 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1210.6	1221	1196.5	1200
Raw rating	1210.6	1221	1177.9	1200
Weighted rating	1207.5	1209	1196.5	1200
Weighted performance	0	0	0	0
Floor	721.3	721	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.3	160.9	171.1	165.8
Highest rating	1221.3 2025-05-05	1221 2025-05-05	1200 2025-05-05	1200 2025-05-05
Highest raw rating	1221.3 2025-05-05	1221 2025-05-05	1200 2025-05-05	1200 2025-05-05
Highest weighted rating	1207 2025-09-01	1206.3 2025-08-01	1200 2025-05-05	1200 2025-05-05
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-1.6	0
New rating	1210.6	1221	1194.9	1200
Analysis
Rating	1210.6	1221	1196.5	1200
Raw rating	1210.6	1221	1177.9	1200
Weighted rating	1207.5	1209	1196.5
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	721.3	721	700	700
Max/Min rating change allowed	163.3	160.9	171.1	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	1210.6	1221	1177.9	1200
New weighted rating	1208	1210.3	1194.9	1200
New weighted performance	0	0	0	0
Temp new rating	1210.6	1221	1194.9	1200
Temp new rating +/-	0	0	-1.6	0
Final new rating +/-	0	0	-1.6	0
New rating	1210.6	1221	1194.9	1200
New K-factor	36	36	36	36
New floor	721.3	721	700	700

Item	Main	Standard	Rapid
	0	0	0
	11	5	6
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	11	5	6

Games since
	Main 11	Standard 5		Rapid 6		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	11	5	45.45	-38.6	1265.5	1226.9
Standard	5	3	60	85	1231.6	1316.6
Rapid	6	2	33.33	-141.7	1293.8	1152.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	5	45.45	-38.6	1265.5	1226.9
Standard	5	3	60	85	1231.6	1316.6
Rapid	6	2	33.33	-141.7	1293.8	1152.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1210.6	1221	1177.9	1200
2025-09-01	1210.6	1221	1177.9	1200
2025-08-01	1221.3	1221	1200	1200
2025-07-01	1221.3	1221	1200	1200
2025-06-01	1221.3	1221	1200	1200
2025-05-01	1221.3	1221	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2023-11-01	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	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	2	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	2	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 0.5	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Coetzee, O (Oliver)				Opponent Tee, J (Johnathan)
2	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 6	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Phahlamohlaka, L (Lesego)				Opponent Phahlamohlaka, L (Lesego)
3	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Stevens, C (Cristiano)				Opponent Stevens, C (Cristiano)

#	Games	Start				End
1	3	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 0.5	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Coetzee, O (Oliver)				Opponent Tee, J (Johnathan)
2	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 5	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Smith, E (Ethan)				Opponent Smith, E (Ethan)

#	Games	Start				End
1	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 6	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Phahlamohlaka, L (Lesego)				Opponent Phahlamohlaka, L (Lesego)
2	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Stevens, C (Cristiano)				Opponent Stevens, C (Cristiano)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 6	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Phahlamohlaka, L (Lesego)				Opponent Phahlamohlaka, L (Lesego)
2	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Stevens, C (Cristiano)				Opponent Stevens, C (Cristiano)
3	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 5	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Smith, E (Ethan)				Opponent Smith, E (Ethan)

#	Games	Start				End
1	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 5	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Smith, E (Ethan)				Opponent Smith, E (Ethan)
2	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Tee, J (Johnathan)				Opponent Tee, J (Johnathan)

#	Games	Start				End
1	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 6	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Phahlamohlaka, L (Lesego)				Opponent Phahlamohlaka, L (Lesego)
2	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Stevens, C (Cristiano)				Opponent Stevens, C (Cristiano)

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	Marais ,S (Sj)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Marais ,S (Sj)	1	1270.8	1270.8	1	1260.2	1270.8	0	0	0	0	0	0
2	Botha ,S (Sebastian)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Botha ,S (Sebastian)	1	1203.3	778.3	1	1184.6	778.3	0	0	0	0	0	0
3	Tee ,J (Johnathan)	1	1	425	1	1	425	0	0	0	0	0	0
3	Tee ,J (Johnathan)	1	1211	1636	1	1200	1636	0	0	0	0	0	0
4	Smith ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Smith ,E (Ethan)	1	1216.5	1641.5	1	1194.2	1641.5	0	0	0	0	0	0
5	Coetzee ,O (Oliver)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Coetzee ,O (Oliver)	1	1256.3	1256.3	1	1217.3	1256.3	0	0	0	0	0	0
6	Sirkhot ,U (Umair)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Sirkhot ,U (Umair)	1	1217.6	792.6	0	0	0	1	1200	792.6	0	0	0
7	Monteiro ,T (Thiago)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Monteiro ,T (Thiago)	1	1272.1	847.1	0	0	0	1	1200	847.1	0	0	0
8	Visagie ,A (Arina)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Visagie ,A (Arina)	1	1496	1071	0	0	0	1	1437.1	1071	0	0	0
9	Stevens ,C (Cristiano)	1	1	425	0	0	0	1	1	425	0	0	0
9	Stevens ,C (Cristiano)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Phahlamohlaka ,L (Lesego)	1	1	425	0	0	0	1	1	425	0	0	0
10	Phahlamohlaka ,L (Lesego)	1	1199.5	1624.5	0	0	0	1	1200	1624.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Bruin, E (EJ)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms