Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kruger, J (Josua Baruch)

Chess SA id

1160150273

FIDE id

Date of birth

2016-08-20 (U10)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

55.8

Junior GPX Points

1460.3

Item	Main	Standard	Rapid	Blitz
Rating	1620.9	1631.7	1519.8	1200
Raw rating	1620.9	1621	1514.8	1200
Weighted rating	1548.8	1533	1519.8	1200
Weighted performance	1591.7	1631.7	1310.1	0
Floor	1120.9	1121	1083	700
K-factor	28	28	32	36
Min/Max rating change allowed	91	91	105.9	165.8
Highest rating	1620.9 2025-11-01	1671.5 2023-05-01	1583 2024-06-01	1200 2018-10-01
Highest raw rating	1620.9 2025-11-01	1621 2025-11-01	1583 2024-06-01	1200 2024-03-01
Highest weighted rating	1548.8 2025-11-01	1533 2025-11-01	1583 2025-05-05	1200 2018-10-01
Highest weighted performance	1608.8 2025-04-01	1671.5 2023-05-01	1574.8 2023-11-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	-9.8	-1.2	0
New rating	1620.9	1621.9	1518.7	1200
Analysis
Rating	1620.9	1631.7	1519.8	1200
Raw rating	1620.9	1621	1514.8	1200
Weighted rating	1548.8	1533	1519.8
Weighted performance	1591.7	1631.7	1310.1
K-factor	28	28	32	36
Floor	1120.9	1121	1083	700
Max/Min rating change allowed	91	91	105.9	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	1620.9	1621	1514.8	1200
New weighted rating	1556.9	1543.7	1518.7	1200
New weighted performance	1582.3	1621.9	1301.8	0
Temp new rating	1620.9	1621.9	1518.7	1200
Temp new rating +/-	0	-9.8	-1.2	0
Final new rating +/-	0	-9.8	-1.2	0
New rating	1620.9	1621.9	1518.7	1200
New K-factor	28	28	32	36
New floor	1120.9	1121	1083	700

Item	Main	Standard	Rapid
	0	0	0
	56	46	10
	56	44	12
	47	17	30
	0	0	0
	0	0	0
History	159	107	52

Games since
	Main 118	Standard 90		Rapid 28		Blitz 0
Gender	Male
Age group	U10
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	560		168		113
Male	515		155		102
U10	17		3		1
U10 Male	15		3		1
Standard
	RSA		Province		Region
Overall	495		139		99
Male	454		128		90
U10	15		2		1
U10 Male	13		2		1
Rapid
	RSA		Province		Region
Overall	195		90		48
Male	181		83		47
U10	4		2		1
U10 Male	4		2		1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	56	44.5	79.46	250.4	1362.4	1612.8
Standard	46	37	80.43	258.7	1374.8	1633.5
Rapid	10	7.5	75	212.5	1305.1	1517.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	159	124	77.99	237.9	1295.3	1533.2
Standard	107	82	76.64	226.4	1322.7	1549.1
Rapid	52	42	80.77	261.5	1239	1500.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1620.9	1621	1514.8	1200
2025-09-30	1588.3	1577.5	1514.8	1200
2025-09-01	1592.8	1577.5	1522.8	1200
2025-08-01	1593.2	1577	1522.8	1200
2025-07-01	1578.7	1545.7	1525.3	1200
2025-06-01	1603.4	1578	1525.3	1200
2025-05-01	1608.8	1592.1	1525.3	1200
2025-04-01	1608.8	1592.1	1524.7	1200
2025-03-01	1590.2	1586.9	1523.2	1200
2025-02-01	1544	1540.3	1519	1200
2025-01-01	1474.2	1491.2	1486.9	1200
2024-12-01	1474.2	1491.2	1486.9	1200
2024-11-01	1474.2	1491.2	1486.9	1200
2024-10-01	1455.8	1466.8	1486.9	1200
2024-09-01	1455.8	1466.8	1486.9	1200
2024-08-01	1423.4	1418	1486.9	1200
2024-07-01	1447.6	1392.7	1583	1200
2024-09-01	1516.4	1438.1	1583	1200
2024-05-01	1436.5	1359.1	1567.6	1200
2024-04-01	1436.5	1359.1	1567.6	1200
2024-03-01	1486.7	1402.6	1567.6	1200
2024-02-01	1488.8	1382.4	1567.6	1200
2024-01-01	1488.8	1382.4	1567.6	1200
2023-12-01	1488.8	1382.4	1567.6	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	Grant East Annual Primary School Invitational Chess Tournament 2025 (U9 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
2	Rhenish Primary 2025 (U10)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
3	Western Cape Women�s Championship 2025 (U10)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	5	3.5	Yes	Analysis
4	Gordons Bay Library Chess Tournament 2025 (U9)	2025-07-26	2025-07-26	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
5	Cape Winelands Open 2025 (U10)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
6	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	1	Yes	Analysis
7	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
8	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
9	CT Metro Schools Individual Closed 2025 (U9 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
10	CT Metro District East Schools Chess Individuals Trials 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
11	Helderberg Chess Club PS Development Tournament 2025 (U9)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Grant East Annual Primary School Invitational Chess Tournament 2025 (U9 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
2	Rhenish Primary 2025 (U10)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
3	Western Cape Women�s Championship 2025 (U10)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	5	3.5	Yes	Analysis
4	Gordons Bay Library Chess Tournament 2025 (U9)	2025-07-26	2025-07-26	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
5	Cape Winelands Open 2025 (U10)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
6	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	1	Yes	Analysis
7	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
8	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
9	CT Metro Schools Individual Closed 2025 (U9 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
10	CT Metro District East Schools Chess Individuals Trials 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
11	Helderberg Chess Club PS Development Tournament 2025 (U9)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
12	Grant East Annual Primary School Invitational Chess Tournament 2024 (U9)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
13	Western Cape Women�s Championship 2024 (U10)	2024-08-09	2024-08-09	Standard	West Coast (WCU)	5	5	4.5	Yes	Analysis
14	CT Metro District East Top Schools Chess 2024 (U9 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
15	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
16	2024 African Youth Chess Championship	2024-06-16	2024-06-22	Standard	Tshwane (GTP)	9	9	5	Yes	Analysis
17	Rhenish PS Tournament 2024 (U10)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	6	6	6	Yes	Analysis
18	South African Junior Closed Chess Championship 2024 (U8 Open)	2024-04-27	2024-05-01	Standard	Ekurhuleni (GE)	9	9	7	Yes	Analysis
19	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
20	CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
21	Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
22	Western Cape Top Schools 2023 (U9 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
23	CT Metro District East Top Schools Chess 2023 (U9 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	4	4	Yes	Analysis
24	Cape Winelands Open 2023 (U10)	2023-07-23	2023-07-23	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
25	WP Closed 2023 (U8)	2023-06-16	2023-06-16	Rapid	Cape Town (WCT)	5	5	5	Yes	Analysis
26	Western Cape PS Individuals 2023 (U7 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	6	Yes	Analysis
27	Rhenish Primary Tournament 2023 (U10)	2023-05-13	2023-05-13	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
28	Cape Town Metro Schools Chess Closed Individuals 2023 (U7 Mixed)	2023-03-04	2023-03-04	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
29	District East Schools Chess Individual Trials 2023 (U7+U9 Mixed)	2023-02-04	2023-02-04	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	13	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament CT Metro Schools Individual Closed 2025
		date 2024-10-05	rnd 5	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Griessel, J (Jason)				Opponent Michaelides, G (George)
2	13	Tournament Western Cape Top Schools 2023				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2023-09-02	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Thomson, M (Matthew)				Opponent Griessel, J (Jason)
3	12	Tournament CT Metro District East Top Schools Chess 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-10-05	rnd 3	type Standard	result 1
		Opponent Martin, L (Luke)				Opponent Nel, J (Joshua)

#	Games	Start				End
1	13	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament CT Metro Schools Individual Closed 2025
		date 2024-10-05	rnd 5	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Griessel, J (Jason)				Opponent Michaelides, G (George)
2	12	Tournament CT Metro District East Top Schools Chess 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-10-05	rnd 3	type Standard	result 1
		Opponent Martin, L (Luke)				Opponent Nel, J (Joshua)
3	10	Tournament CT Metro Schools Individual Closed 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-03-02	rnd 4	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Vazirgiantzikis, A (Andreas)				Opponent Plaatjies, R (Romario)

#	Games	Start				End
1	24	Tournament Rhenish Primary Tournament 2023				Tournament Rhenish PS Tournament 2024
		date 2023-05-13	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 6	type Rapid	result 1
		Opponent Van Der Spuy, D (Daniel)				Opponent Bowen, L (Luke Aiden)
2	6	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Rhenish Primary 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-09-20	rnd 4	type Rapid	result 0.5
		Opponent Kolbe, L (Luke)				Opponent Lin, J (Junming)
3	5	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Rhenish Primary Tournament 2023
		date 2023-03-04	rnd 2	type Rapid	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Nkhape, O (Olothando)				Opponent Philander, L (Liam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	13	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament CT Metro Schools Individual Closed 2025
		date 2024-10-05	rnd 5	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Griessel, J (Jason)				Opponent Michaelides, G (George)
2	13	Tournament Western Cape Top Schools 2023				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2023-09-02	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Thomson, M (Matthew)				Opponent Griessel, J (Jason)
3	11	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Rhenish Primary Tournament 2023
		date 2023-03-04	rnd 2	type Rapid	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Nkhape, O (Olothando)				Opponent Philander, L (Liam)

#	Games	Start				End
1	13	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament CT Metro Schools Individual Closed 2025
		date 2024-10-05	rnd 5	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Griessel, J (Jason)				Opponent Michaelides, G (George)
2	7	Tournament CT Metro District East Top Schools Chess 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-08-09	rnd 3	type Standard	result 1
		Opponent Martin, L (Luke)				Opponent Klopper, E (Elbe)
3	7	Tournament Western Cape Top Schools 2023				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2023-09-02	rnd 4	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Thomson, M (Matthew)				Opponent Griessel, J (Jason)

#	Games	Start				End
1	24	Tournament Rhenish Primary Tournament 2023				Tournament Rhenish PS Tournament 2024
		date 2023-05-13	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 6	type Rapid	result 1
		Opponent Van Der Spuy, D (Daniel)				Opponent Bowen, L (Luke Aiden)
2	5	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Rhenish Primary 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-09-20	rnd 3	type Rapid	result 1
		Opponent Kolbe, L (Luke)				Opponent Koen, G (Gustav)
3	5	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Rhenish Primary Tournament 2023
		date 2023-03-04	rnd 2	type Rapid	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Nkhape, O (Olothando)				Opponent Philander, 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	Lin ,J (Junming)	6	2.5	-70.8	5	2	-85	1	0.5	0	0	0	0
1	Lin ,J (Junming)	6	1459.3	1388.4	5	1424.8	1374.3	1	1449.7	1459.3	0	0	0
2	Klopper ,E (Elbe)	6	6	425	4	4	425	2	2	425	0	0	0
2	Klopper ,E (Elbe)	6	1282.4	1707.4	4	1311.9	1707.4	2	1214	1707.4	0	0	0
3	Akemdien ,A (Alex)	5	3	85	5	3	85	0	0	0	0	0	0
3	Akemdien ,A (Alex)	5	1492.4	1577.4	5	1460.5	1577.4	0	0	0	0	0	0
4	Marais ,A (Alexander)	4	2	0	2	1	0	2	1	0	0	0	0
4	Marais ,A (Alexander)	4	1330.2	1330.2	2	1322.7	1330.2	2	1288.8	1330.2	0	0	0
5	Griesel ,J (Jason)	3	3	425	2	2	425	1	1	425	0	0	0
5	Griesel ,J (Jason)	3	1231.9	1656.9	2	1251	1656.9	1	1200	1656.9	0	0	0
6	Venter ,M (Michael)	3	2	141.7	2	2	425	1	0	-425	0	0	0
6	Venter ,M (Michael)	3	1454.7	1596.4	2	1387.7	1879.7	1	1296.8	1029.7	0	0	0
7	Zwartz ,Z (Zeke)	3	3	425	2	2	425	1	1	425	0	0	0
7	Zwartz ,Z (Zeke)	3	1371.5	1796.5	2	1308.8	1796.5	1	1365.8	1796.5	0	0	0
8	Beukes ,C (Cullen)	3	2	141.7	2	2	425	1	0	-425	0	0	0
8	Beukes ,C (Cullen)	3	1346.5	1488.1	2	1288.1	1771.5	1	1296.4	921.5	0	0	0
9	Javed ,M (Mariam)	3	2	141.7	1	1	425	2	1	0	0	0	0
9	Javed ,M (Mariam)	3	1096	1237.7	1	1184.4	1521	2	980.5	1096	0	0	0
10	Lourens ,S (Simeon Juda)	2	2	425	2	2	425	0	0	0	0	0	0
10	Lourens ,S (Simeon Juda)	2	1423.2	1848.2	2	1426.2	1848.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Kruger, J (Josua Baruch)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms