Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Bruin, J (Juan)

Chess SA id

1040110476

FIDE id

Date of birth

2004-01-01 (Adult)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-03-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1209.7	1170.4	1235.6	1200
Raw rating	1209.7	1170.4	1235.6	1200
Weighted rating	1209.7	1170.4	1235.6	1200
Weighted performance	0	0	0	0
Floor	721.1	700	742.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.5	173	157.6	165.8
Highest rating	1252.3 2019-02-01	1200 2018-10-01	1340.7 2019-02-01	1200 2018-10-01
Highest raw rating	1221.1 2019-03-01	1200 2018-02-01	1242.8 2019-12-01	1200 2024-03-01
Highest weighted rating	1221.1 2020-02-01	1200 2018-10-01	1242.8 2020-12-01	1200 2018-10-01
Highest weighted performance	1252.3 2019-02-01	1200 2018-02-01	1340.7 2019-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1209.7	1170.4	1235.6	1200
Analysis
Rating	1209.7	1170.4	1235.6	1200
Raw rating	1209.7	1170.4	1235.6	1200
Weighted rating	1209.7	1170.4	1235.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	721.1	700	742.8	700
Max/Min rating change allowed	163.5	173	157.6	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	1209.7	1170.4	1235.6	1200
New weighted rating	1209.7	1170.4	1235.6	1200
New weighted performance	0	0	0	0
Temp new rating	1209.7	1170.4	1235.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1209.7	1170.4	1235.6	1200
New K-factor	36	36	36	36
New floor	721.1	700	742.8	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	20	8	12

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	20	12	60	85	1140.4	1225.4
Standard	8	4	50	0	1113.2	1113.2
Rapid	12	8	66.67	141.7	1158.6	1300.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1209.7	1170.4	1235.6	1200
2025-09-01	1209.7	1170.4	1235.6	1200
2025-08-01	1209.7	1170.4	1235.6	1200
2025-07-01	1209.7	1170.4	1235.6	1200
2025-06-01	1209.7	1170.4	1235.6	1200
2025-05-01	1209.7	1170.4	1235.6	1200
2025-04-01	1209.7	1170.4	1235.6	1200
2025-03-01	1209.7	1170.4	1235.6	1200
2025-02-01	1209.7	1170.4	1235.6	1200
2025-01-01	1209.7	1170.4	1235.6	1200
2024-12-01	1209.7	1170.4	1235.6	1200
2024-11-01	1209.7	1170.4	1235.6	1200
2024-10-01	1209.7	1170.4	1235.6	1200
2024-09-01	1209.7	1170.4	1235.6	1200
2024-08-01	1209.7	1170.4	1235.6	1200
2024-07-01	1209.7	1170.4	1235.6	1200
2024-06-01	1209.7	1170.4	1235.6	1200
2024-08-01	1209.7	1170.4	1235.6	1200
2024-04-01	1209.7	1170.4	1235.6	1200
2024-03-01	1209.7	1170.4	1235.6	1200
2024-02-01	1209.7	1170.4	1235.6	1200
2024-01-01	1209.7	1170.4	1235.6	1200
2023-12-01	1209.7	1170.4	1235.6	1200
2023-11-01	1209.7	1170.4	1235.6	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	West Coast Schools Prestige 2020 (U18+U20 Boys)	2020-03-07	2020-03-07	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
2	Bo-Weskus Skole Prestige 2020 (O18+O20 Seuns)	2020-02-15	2020-02-15	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
3	Weskus Skole Prestige Skaak Kampioenskappe 2019 (O18 Seuns)	2019-03-02	2019-04-06	Standard	West Coast (WCU)	6	2	1	Yes	Analysis
4	Bo-Weskus Skole Skaak Prestige 2019 (O15 Seuns)	2019-02-16	2019-02-16	Rapid	West Coast (WCU)	7	7	5	Yes	Analysis

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Karolus, R (Reagan)				Opponent Skippers, M (Mario)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-02-15	rnd 6	type Standard	result 1	date 2020-03-07	rnd 1	type Rapid	result 1
		Opponent Van Zyl, J (Janu)				Opponent Dirks, H (Heinrique)
3	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 5	type Rapid	result 1
		Opponent Arries, G (Gerswin)				Opponent Malgas, G (Gershwin)

#	Games	Start				End
1	1	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 6	type Standard	result 1	date 2020-02-15	rnd 6	type Standard	result 1
		Opponent Van Zyl, J (Janu)				Opponent Van Zyl, J (Janu)
2	1	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 4	type Standard	result 1	date 2020-02-15	rnd 4	type Standard	result 1
		Opponent Snewe, C (Cirnell)				Opponent Snewe, C (Cirnell)
3	1	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 2	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Malgas, C (Claude)				Opponent Malgas, C (Claude)

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Karolus, R (Reagan)				Opponent Skippers, M (Mario)
2	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament West Coast Schools Prestige 2020
		date 2019-02-16	rnd 7	type Rapid	result 1	date 2020-03-07	rnd 1	type Rapid	result 1
		Opponent Tembu, J (Jahiem)				Opponent Dirks, H (Heinrique)
3	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 5	type Rapid	result 1
		Opponent Arries, G (Gerswin)				Opponent Malgas, G (Gershwin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Karolus, R (Reagan)				Opponent Skippers, M (Mario)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-02-15	rnd 6	type Standard	result 1	date 2020-03-07	rnd 1	type Rapid	result 1
		Opponent Van Zyl, J (Janu)				Opponent Dirks, H (Heinrique)
3	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 5	type Rapid	result 1
		Opponent Arries, G (Gerswin)				Opponent Malgas, G (Gershwin)

#	Games	Start				End
1	1	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 6	type Standard	result 1	date 2020-02-15	rnd 6	type Standard	result 1
		Opponent Van Zyl, J (Janu)				Opponent Van Zyl, J (Janu)
2	1	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 4	type Standard	result 1	date 2020-02-15	rnd 4	type Standard	result 1
		Opponent Snewe, C (Cirnell)				Opponent Snewe, C (Cirnell)
3	1	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 2	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Malgas, C (Claude)				Opponent Malgas, C (Claude)

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Karolus, R (Reagan)				Opponent Skippers, M (Mario)
2	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament West Coast Schools Prestige 2020
		date 2019-02-16	rnd 7	type Rapid	result 1	date 2020-03-07	rnd 1	type Rapid	result 1
		Opponent Tembu, J (Jahiem)				Opponent Dirks, H (Heinrique)
3	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 5	type Rapid	result 1
		Opponent Arries, G (Gerswin)				Opponent Malgas, G (Gershwin)

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	Malgas ,C (Claude)	1	1	425	1	1	425	0	0	0	0	0	0
1	Malgas ,C (Claude)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Wildschut ,B (Bradley)	1	1	425	1	1	425	0	0	0	0	0	0
2	Wildschut ,B (Bradley)	1	1183.6	1608.6	1	1178.8	1608.6	0	0	0	0	0	0
3	Claasen ,DAR (Deven)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Claasen ,DAR (Deven)	1	1064.2	639.2	1	984.4	639.2	0	0	0	0	0	0
4	Snewe ,C (Cirnell)	1	1	425	1	1	425	0	0	0	0	0	0
4	Snewe ,C (Cirnell)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Carolus ,R (Reagan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Carolus ,R (Reagan)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Van Zyl ,J (Janu)	1	1	425	1	1	425	0	0	0	0	0	0
6	Van Zyl ,J (Janu)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Claassen ,K (Keith)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Claassen ,K (Keith)	1	661.4	236.4	1	687.6	236.4	0	0	0	0	0	0
8	Karools ,L (Leathan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Karools ,L (Leathan)	1	1196.3	771.3	1	1146.4	771.3	0	0	0	0	0	0
9	Arries ,G (Gerswin)	1	1	425	0	0	0	1	1	425	0	0	0
9	Arries ,G (Gerswin)	1	1001.9	1426.9	0	0	0	1	1200	1426.9	0	0	0
10	Dirks ,H (Heinrique)	1	1	425	0	0	0	1	1	425	0	0	0
10	Dirks ,H (Heinrique)	1	1198	1623	0	0	0	1	1200	1623	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

De Bruin, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms