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

Item	Main	Standard	Rapid	Blitz
Rating	1208.2	1209.6	1199.5	1200
Raw rating	1207.6	1208.9	1199.5	1200
Weighted rating	1208.2	1209.6	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	0	0	0
New rating	1208.2	1209.6	1199.5	1200
Analysis
Rating	1208.2	1209.6	1199.5	1200
Raw rating	1207.6	1208.9	1199.5	1200
Weighted rating	1208.2	1209.6	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	1208.2	1209.6	1199.4	1200
New weighted performance	0	0	0	0
Temp new rating	1208.2	1209.6	1199.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1208.2	1209.6	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
2026-01-01	1207.6	1208.9	1199.5	1200
2025-11-30	1207.6	1208.9	1199.5	1200
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
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	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

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	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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PLAYER PAGE

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