Chess South Africa Ratings Database

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Personal

Nel, J (Joshua)

Chess SA id

1150191253

FIDE id

Date of birth

2015-01-24 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

93.5

Junior GPX Points

1459.5

Item	Main	Standard	Rapid	Blitz
Rating	1637.3	1633.2	1523.6	1200
Raw rating	1637.3	1633.2	1523.6	1200
Weighted rating	1503.1	1470.4	1482.9	1200
Weighted performance	1622.3	1613.8	1413.3	0
Floor	1137.3	1133.2	1043	700
K-factor	28	28	32	36
Min/Max rating change allowed	88.9	89.5	104.6	165.8
Highest rating	1637.3 2025-09-30	1633.2 2025-09-30	1543 2024-12-01	1200 2018-10-01
Highest raw rating	1637.3 2025-09-30	1633.2 2025-09-30	1543 2024-12-01	1200 2024-02-01
Highest weighted rating	1503.1 2025-09-30	1470.4 2025-09-30	1474 2025-09-01	1200 2018-10-01
Highest weighted performance	1622.3 2025-09-30	1613.8 2025-09-30	1531.7 2024-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1637.3	1633.2	1523.6	1200
Analysis
Rating	1637.3	1633.2	1523.6	1200
Raw rating	1637.3	1633.2	1523.6	1200
Weighted rating	1503.1	1470.4	1482.9
Weighted performance	1622.3	1613.8	1413.3
K-factor	28	28	32	36
Floor	1137.3	1133.2	1043	700
Max/Min rating change allowed	88.9	89.5	104.6	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	1637.3	1633.2	1523.6	1200
New weighted rating	1519.4	1489.3	1490.7	1200
New weighted performance	1621.7	1613.3	1412.8	0
Temp new rating	1637.3	1633.2	1523.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1637.3	1633.2	1523.6	1200
New K-factor	28	28	32	36
New floor	1137.3	1133.2	1043	700

Item	Main	Standard	Rapid
	0	0	0
	81	69	12
	72	43	29
	12	0	12
	0	0	0
	0	0	0
History	165	112	53

Games since
	Main 165	Standard 112		Rapid 53		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	488		140		96
Male	452		124		84
U12	28		9		5
U12 Male	26		8		5
Standard
	RSA		Province		Region
Overall	485		128		86
Male	448		114		76
U12	30		10		5
U12 Male	27		9		5
Rapid
	RSA		Province		Region
Overall	176		81		43
Male	167		77		43
U12	18		10		6
U12 Male	17		9		6
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	81	60	74.07	204.6	1402.8	1607.5
Standard	69	51.5	74.64	209.4	1413.4	1622.8
Rapid	12	8.5	70.83	177.1	1341.9	1519
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	165	121	73.33	198.3	1339.2	1537.5
Standard	112	79.5	70.98	178.3	1372.8	1551.2
Rapid	53	41.5	78.3	240.6	1268	1508.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1637.3	1633.2	1523.6	1200
2025-09-01	1581.8	1566.3	1523.6	1200
2025-08-01	1589.9	1572.4	1535.2	1200
2025-07-01	1575.1	1551.9	1535.2	1200
2025-06-01	1594.2	1573.2	1535.2	1200
2025-05-01	1593.6	1575.5	1535.2	1200
2025-04-01	1562.7	1541.5	1535.2	1200
2025-03-01	1551.2	1532.8	1535.2	1200
2025-02-01	1490	1454.5	1535.2	1200
2025-01-01	1463	1399.6	1543	1200
2024-12-01	1453.5	1359.6	1543	1200
2024-11-01	1429.9	1359.6	1515.8	1200
2024-10-01	1442.4	1360.3	1515.8	1200
2024-09-01	1386.9	1357.8	1321.7	1200
2024-08-01	1386.9	1357.8	1321.7	1200
2024-07-01	1365.4	1327.9	1321.7	1200
2024-06-01	1365.4	1327.9	1321.7	1200
2024-08-01	1325	1296.9	1294	1200
2024-04-01	1325	1296.9	1294	1200
2024-03-01	1286.5	1250.8	1294	1200
2024-02-01	1254.2	1200	1294	1200
2024-01-01	1254.2	1200	1294	1200
2023-12-01	1254.2	1200	1294	1200
2023-11-01	1234.3	1200	1259.4	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	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5.5	Yes	Analysis
2	Curro Chess Open Rapid 2025 (U12)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
3	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	6	5	Yes	Analysis
4	Cape Winelands Open 2025 (U12)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
5	Helderberg Chess Club Open 2025 (U11)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
6	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	3	Yes	Analysis
7	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
8	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5.5	Yes	Analysis
9	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
10	Western Cape Closed 2025 (U12)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
11	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
12	CT Metro District East Schools Chess Individuals Trials 2025 (U11 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
13	Helderberg Chess Club PS Development Tournament 2025 (U11 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
14	2025 Kraaifontein Open Chess Championships (U12 Rapid)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5.5	Yes	Analysis
2	Curro Chess Open Rapid 2025 (U12)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
3	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	6	5	Yes	Analysis
4	Cape Winelands Open 2025 (U12)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
5	Helderberg Chess Club Open 2025 (U11)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
6	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	3	Yes	Analysis
7	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
8	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5.5	Yes	Analysis
9	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
10	Western Cape Closed 2025 (U12)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
11	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
12	CT Metro District East Schools Chess Individuals Trials 2025 (U11 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
13	Helderberg Chess Club PS Development Tournament 2025 (U11 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
14	2025 Kraaifontein Open Chess Championships (U12 Rapid)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
15	Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	5.5	Yes	Analysis
16	2nd Strategize To Win Round-Robin Tournament ACL 2024 (C)	2024-12-07	2024-12-07	Standard	Cape Town (WCT)	5	4	0	Yes	Analysis
17	Chess Challengers Championship 2024 (U10)	2024-11-23	2024-11-23	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
18	Grant East Annual Primary School Invitational Chess Tournament 2024 (U9)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
19	Chess Elevation Series -September 2024 (Level 1)	2024-09-20	2024-09-21	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
20	Kingsway Chess Open 2024 (U10)	2024-09-14	2024-09-14	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
21	Closed Somerset College Chess Tournament 2024 (U9)	2024-09-13	2024-09-13	Rapid	Cape Town (WCT)	5	5	5	Yes	Analysis
22	Kleinmond Chess Club Open 2024 (U10)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
23	CT Metro District East Top Schools Chess 2024 (U13 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
24	PNPS Chess Challengers 2024 (U10)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
25	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
26	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
27	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
28	Kraaifontein Open 2023 (U10)	2023-12-09	2023-12-09	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
29	Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis

#	Games	Start				End
1	12	Tournament Helderberg Chess Club PS Development Tournament 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-01-25	rnd 4	type Standard	result 1	date 2025-03-02	rnd 4	type Standard	result 0.5
		Opponent Griesel, J (Jason)				Opponent Klopper, B (Ben)
2	9	Tournament Curro Chess Open Rapid 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-23	rnd 4	type Rapid	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Langenhoven, J (Jasmin-Grace)				Opponent Beyers, R (Riekie)
3	9	Tournament Cape Town Open Chess Festival 2025				Tournament South African Junior Closed Chess Championships 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-04-01	rnd 4	type Standard	result 1
		Opponent Ghamlouche, C (Caryn)				Opponent Steyn, K (Kian)

#	Games	Start				End
1	12	Tournament Helderberg Chess Club PS Development Tournament 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-01-25	rnd 4	type Standard	result 1	date 2025-03-02	rnd 4	type Standard	result 0.5
		Opponent Griesel, J (Jason)				Opponent Klopper, B (Ben)
2	9	Tournament Cape Town Open Chess Festival 2025				Tournament South African Junior Closed Chess Championships 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-04-01	rnd 4	type Standard	result 1
		Opponent Ghamlouche, C (Caryn)				Opponent Steyn, K (Kian)
3	6	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Coetzee, E (Emma)				Opponent Beyers, R (Riekie)

#	Games	Start				End
1	10	Tournament Kingsway Chess Open 2024				Tournament 2025 Kraaifontein Open Chess Championships
		date 2024-09-14	rnd 4	type Rapid	result 1	date 2025-01-04	rnd 1	type Rapid	result 1
		Opponent Indhull, N (Nikita)				Opponent Van Der Spuy, D (Daniel)
2	9	Tournament Kleinmond Chess Club Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-07	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Griessel, J (Jason)				Opponent Harikisun, A (Acira)
3	5	Tournament PNPS Chess Challengers 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-05-18	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Horn, N (Nielen)				Opponent Gebuza, L (Lufiko)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Kleinmond Chess Club Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-07	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Griessel, J (Jason)				Opponent Harikisun, A (Acira)
2	6	Tournament Cape Winelands Open 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-07-19	rnd 5	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Techow-Grubert, D (Dominik)				Opponent Chilumba, C (Cornelius)
3	5	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-02	rnd 5	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Burnett, T (Tomas)				Opponent Zhang, M (Ming Xuan Jesse)

#	Games	Start				End
1	6	Tournament Cape Winelands Open 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-07-19	rnd 5	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Techow-Grubert, D (Dominik)				Opponent Chilumba, C (Cornelius)
2	5	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-02	rnd 5	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Burnett, T (Tomas)				Opponent Zhang, M (Ming Xuan Jesse)
3	5	Tournament Helderberg Chess Club PS Development Tournament 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-01-25	rnd 4	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Griesel, J (Jason)				Opponent Viljoen, L (Lihan)

#	Games	Start				End
1	9	Tournament Kleinmond Chess Club Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-07	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Griessel, J (Jason)				Opponent Harikisun, A (Acira)
2	5	Tournament PNPS Chess Challengers 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-05-18	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Horn, N (Nielen)				Opponent Gebuza, L (Lufiko)
3	4	Tournament Kraaifontein Open 2023				Tournament PNPS Chess Challengers 2024
		date 2023-12-09	rnd 5	type Rapid	result 1	date 2024-05-18	rnd 2	type Rapid	result 1
		Opponent Wiggins, M (Mikhail)				Opponent Javed, M (Mariam)

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	Van Der Merwe ,S (Schalk Wolf)	5	1	-255	4	1	-212.5	1	0	-425	0	0	0
1	Van Der Merwe ,S (Schalk Wolf)	5	1661	1406	4	1619.8	1448.5	1	1722.7	1236	0	0	0
2	Griesel ,J (Jason)	5	3.5	170	4	2.5	106.2	1	1	425	0	0	0
2	Griesel ,J (Jason)	5	1284.4	1454.4	4	1282.8	1390.6	1	1200	1709.4	0	0	0
3	Zhang ,M (Ming Xuan Jesse)	5	4	255	3	2.5	283.3	2	1.5	212.5	0	0	0
3	Zhang ,M (Ming Xuan Jesse)	5	1390.6	1645.6	3	1359.7	1673.9	2	1337.7	1603.1	0	0	0
4	Marais ,A (Alexander)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
4	Marais ,A (Alexander)	3	1430.2	1430.2	3	1374.5	1430.2	0	0	0	0	0	0
5	Klopper ,B (Ben)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Klopper ,B (Ben)	3	1593.3	1451.6	3	1578.4	1451.6	0	0	0	0	0	0
6	Burnett ,T (Tomas)	3	2.5	283.3	2	2	425	1	0.5	0	0	0	0
6	Burnett ,T (Tomas)	3	1367.7	1651	2	1427.7	1792.7	1	1226.3	1367.7	0	0	0
7	Venter ,M (Michael)	3	2	141.7	2	1	0	1	1	425	0	0	0
7	Venter ,M (Michael)	3	1349.2	1490.9	2	1382.6	1349.2	1	1246	1774.2	0	0	0
8	Stern ,M (Mason)	3	0.5	-283.3	2	0	-425	1	0.5	0	0	0	0
8	Stern ,M (Mason)	3	1718.7	1435.3	2	1615.7	1293.7	1	1522.4	1718.7	0	0	0
9	Javed ,Z (Zainab)	3	2	141.7	1	1	425	2	1	0	0	0	0
9	Javed ,Z (Zainab)	3	1359.7	1501.4	1	1421.1	1784.7	2	1322.6	1359.7	0	0	0
10	Kruger ,J (Josua Baruch)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Kruger ,J (Josua Baruch)	2	1523	1310.5	2	1526.9	1310.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Nel, J (Joshua)

Ratings

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Last 24 raw ratings

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Top 10 opponents most often played

Norms