Chess South Africa Ratings Database

PLAYER PAGE

Personal

Du Bruyn, J (Juan)

Chess SA id

1150308425

FIDE id

Date of birth

2015-06-25 (U12)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-31

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1002.5

Item	Main	Standard	Rapid	Blitz
Rating	1208	1209.4	1199.5	1200
Raw rating	1207.6	1208.9	1199.5	1200
Weighted rating	1208	1209.4	1199.5	1200
Weighted performance	0	0	0	0
Floor	726.6	731.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	164	163.7	165.9	165.8
Highest rating	1314.7 2024-08-01	1310.3 2024-08-01	1200 2024-10-01	1200 2024-10-01
Highest raw rating	1226.6 2024-10-01	1231.2 2024-10-01	1200 2024-10-01	1200 2024-10-01
Highest weighted rating	1226.6 2024-10-01	1231.2 2024-10-01	1200 2024-10-01	1200 2024-10-01
Highest weighted performance	1314.7 2024-08-01	1310.3 2024-08-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0.1	0	0
New rating	1208.1	1209.5	1199.5	1200
Analysis
Rating	1208	1209.4	1199.5	1200
Raw rating	1207.6	1208.9	1199.5	1200
Weighted rating	1208	1209.4	1199.5
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	726.6	731.2	700	700
Max/Min rating change allowed	164	163.7	165.9	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	1207.6	1208.9	1199.5	1200
New weighted rating	1208.1	1209.5	1199.5	1200
New weighted performance	0	0	0	0
Temp new rating	1208.1	1209.5	1199.5	1200
Temp new rating +/-	0.1	0.1	0	0
Final new rating +/-	0.1	0.1	0	0
New rating	1208.1	1209.5	1199.5	1200
New K-factor	36	36	36	36
New floor	726.6	731.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	10	4	6
	11	11	0
	0	0	0
	0	0	0
	0	0	0
History	21	15	6

Games since
	Main 21	Standard 15		Rapid 6		Blitz 0
Gender	Male
Age group	U12
Region	Sedibeng (GSV)
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	10	2	20	-255	1245.2	990.2
Standard	4	1	25	-212.5	1202.5	990
Rapid	6	1	16.67	-283.3	1273.7	990.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	21	8	38.1	-101.2	1218.1	1116.9
Standard	15	7	46.67	-28.3	1195.8	1167.5
Rapid	6	1	16.67	-283.3	1273.7	990.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1207.6	1208.9	1199.5	1200
2025-09-30	1207.6	1208.9	1199.5	1200
2025-09-01	1207.6	1208.9	1199.5	1200
2025-08-01	1207.6	1208.9	1199.5	1200
2025-07-01	1207.1	1208.5	1199.2	1200
2025-06-01	1202.7	1206	1195	1200
2025-05-01	1209.3	1210.3	1200	1200
2025-04-01	1209.3	1210.3	1200	1200
2025-03-01	1209.3	1210.3	1200	1200
2025-02-01	1209.3	1210.3	1200	1200
2025-01-01	1209.3	1210.3	1200	1200
2024-12-01	1209.3	1210.3	1200	1200
2024-11-01	1209.3	1210.3	1200	1200
2024-10-01	1226.6	1231.2	1200	1200
2024-09-01	1226.6	1231.2	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	RMS Rapid Chess Open 31 May 2025 (U11)	2025-05-31	2025-05-31	Rapid	Sedibeng (GSV)	6	6	1	Yes	Analysis
2	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U11 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	RMS Rapid Chess Open 31 May 2025 (U11)	2025-05-31	2025-05-31	Rapid	Sedibeng (GSV)	6	6	1	Yes	Analysis
2	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U11 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	4	1	Yes	Analysis
3	Gauteng Top Schools 2024 (U9 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	Sedibeng East D7 Teams Trials 2024 (U9)	2024-08-03	2024-08-03	Standard	Sedibeng (GSV)	6	6	4	Yes	Analysis

#	Games	Start				End
1	3	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Gauteng Top Schools 2024
		date 2024-08-03	rnd 5	type Standard	result 1	date 2024-10-04	rnd 1	type Standard	result 1
		Opponent Lamitro, L (Lewi)				Opponent Moyo, M (Mbalenhle)
2	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Strydom, G (Graceson)				Opponent Lamitro, L (Lewi)
3	1	Tournament RMS Rapid Chess Open 31 May 2025				Tournament RMS Rapid Chess Open 31 May 2025
		date 2025-05-31	rnd 3	type Rapid	result 1	date 2025-05-31	rnd 3	type Rapid	result 1
		Opponent Koenig, L (Liam)				Opponent Koenig, L (Liam)

#	Games	Start				End
1	3	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Gauteng Top Schools 2024
		date 2024-08-03	rnd 5	type Standard	result 1	date 2024-10-04	rnd 1	type Standard	result 1
		Opponent Lamitro, L (Lewi)				Opponent Moyo, M (Mbalenhle)
2	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Strydom, G (Graceson)				Opponent Lamitro, L (Lewi)
3	1	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-05-24	rnd 4	type Standard	result 1	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Laxa, S (Sithembiso)				Opponent Laxa, S (Sithembiso)

#	Games	Start				End
1	1	Tournament RMS Rapid Chess Open 31 May 2025				Tournament RMS Rapid Chess Open 31 May 2025
		date 2025-05-31	rnd 3	type Rapid	result 1	date 2025-05-31	rnd 3	type Rapid	result 1
		Opponent Koenig, L (Liam)				Opponent Koenig, L (Liam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Gauteng Top Schools 2024
		date 2024-08-03	rnd 5	type Standard	result 1	date 2024-10-04	rnd 1	type Standard	result 1
		Opponent Lamitro, L (Lewi)				Opponent Moyo, M (Mbalenhle)
2	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Strydom, G (Graceson)				Opponent Lamitro, L (Lewi)
3	1	Tournament RMS Rapid Chess Open 31 May 2025				Tournament RMS Rapid Chess Open 31 May 2025
		date 2025-05-31	rnd 3	type Rapid	result 1	date 2025-05-31	rnd 3	type Rapid	result 1
		Opponent Koenig, L (Liam)				Opponent Koenig, L (Liam)

#	Games	Start				End
1	3	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Gauteng Top Schools 2024
		date 2024-08-03	rnd 5	type Standard	result 1	date 2024-10-04	rnd 1	type Standard	result 1
		Opponent Lamitro, L (Lewi)				Opponent Moyo, M (Mbalenhle)
2	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Strydom, G (Graceson)				Opponent Lamitro, L (Lewi)
3	1	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-05-24	rnd 4	type Standard	result 1	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Laxa, S (Sithembiso)				Opponent Laxa, S (Sithembiso)

#	Games	Start				End
1	1	Tournament RMS Rapid Chess Open 31 May 2025				Tournament RMS Rapid Chess Open 31 May 2025
		date 2025-05-31	rnd 3	type Rapid	result 1	date 2025-05-31	rnd 3	type Rapid	result 1
		Opponent Koenig, L (Liam)				Opponent Koenig, L (Liam)

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	Strydom ,G (Graceson)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Strydom ,G (Graceson)	3	1087.3	1229	3	1112.7	1229	0	0	0	0	0	0
2	Dliwayo ,K (Kuhle)	2	1	0	2	1	0	0	0	0	0	0	0
2	Dliwayo ,K (Kuhle)	2	1239.6	1239.6	2	1200	1239.6	0	0	0	0	0	0
3	Lamitro ,L (Lewi)	2	2	425	2	2	425	0	0	0	0	0	0
3	Lamitro ,L (Lewi)	2	1200	1625	2	1200	1625	0	0	0	0	0	0
4	Koenig ,L (Liam)	2	1	0	0	0	0	2	1	0	0	0	0
4	Koenig ,L (Liam)	2	1200	1200	0	0	0	2	1200	1200	0	0	0
5	Pretorius ,J (Johnro)	2	0	-425	0	0	0	2	0	-425	0	0	0
5	Pretorius ,J (Johnro)	2	1189	764	0	0	0	2	1181.6	764	0	0	0
6	Rossouw ,L (Lience)	2	0	-425	0	0	0	2	0	-425	0	0	0
6	Rossouw ,L (Lience)	2	1432.1	1007.1	0	0	0	2	1326	1007.1	0	0	0
7	Erasmus ,S (Sonja)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Erasmus ,S (Sonja)	1	1363.3	938.3	1	1360.2	938.3	0	0	0	0	0	0
8	Mehlomakulu ,M (Mpendulo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mehlomakulu ,M (Mpendulo)	1	1196.9	771.9	1	1229.2	771.9	0	0	0	0	0	0
9	Moyo ,M (Mbalenhle)	1	1	425	1	1	425	0	0	0	0	0	0
9	Moyo ,M (Mbalenhle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Musoko ,T (Thadiwanashe)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Musoko ,T (Thadiwanashe)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Du Bruyn, 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