Chess South Africa Ratings Database

PLAYER PAGE

Personal

Okonji, J (Joshua)

Chess SA id

1110193388

FIDE id

Date of birth

2011-01-11 (U16)

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

Junior GPX Points

1215.8

Item	Main	Standard	Rapid	Blitz
Rating	1341.1	1333.9	1237.6	1200
Raw rating	1321.9	1302.9	1237.6	1200
Weighted rating	1341.1	1333.9	1234.9	1200
Weighted performance	1201.1	1192.6	0	0
Floor	886.5	888.3	737.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	139.4	143.2	157.2	165.8
Highest rating	1551.7 2024-02-01	1515.6 2024-02-01	1478.3 2024-05-01	1200 2024-02-01
Highest raw rating	1386.5 2025-02-01	1388.3 2024-10-01	1237.6 2024-06-01	1200 2024-02-01
Highest weighted rating	1386.5 2024-10-01	1333.9 2025-11-01	1237.6 2024-10-01	1200 2024-02-01
Highest weighted performance	1551.7 2024-02-01	1515.6 2024-02-01	1478.3 2024-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.4	-0.6	0	0
New rating	1341.6	1333.3	1237.6	1200
Analysis
Rating	1341.1	1333.9	1237.6	1200
Raw rating	1321.9	1302.9	1237.6	1200
Weighted rating	1341.1	1333.9	1234.9
Weighted performance	1201.1	1192.6	0
K-factor	36	36	36	36
Floor	886.5	888.3	737.6	700
Max/Min rating change allowed	139.4	143.2	157.2	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	1321.9	1302.9	1237.6	1200
New weighted rating	1341.6	1333.3	1235.7	1200
New weighted performance	1193.6	1185.1	0	0
Temp new rating	1341.6	1333.3	1237.6	1200
Temp new rating +/-	0.4	-0.6	0	0
Final new rating +/-	0.4	-0.6	0	0
New rating	1341.6	1333.3	1237.6	1200
New K-factor	36	36	36	36
New floor	886.5	888.3	737.6	700

Item	Main	Standard	Rapid
	0	0	0
	17	17	0
	26	21	5
	0	0	0
	0	0	0
	0	0	0
History	43	38	5

Games since
	Main 43	Standard 38		Rapid 5		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2826		906		391
Male	2256		691		313
U16	451		155		54
U16 Male	336		110		39
Standard
	RSA		Province		Region
Overall	2837		804		355
Male	2264		601		279
U16	456		145		52
U16 Male	344		102		37
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	17	7.5	44.12	-50	1304.7	1254.7
Standard	17	7.5	44.12	-50	1304.7	1254.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	43	26	60.47	89	1293.2	1382.2
Standard	38	23	60.53	89.5	1293.9	1383.4
Rapid	5	3	60	85	1287.8	1372.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1321.9	1302.9	1237.6	1200
2025-09-30	1324.5	1310.1	1237.6	1200
2025-09-01	1324.5	1310.1	1237.6	1200
2025-08-01	1359.8	1352.2	1237.6	1200
2025-07-01	1359.8	1352.2	1237.6	1200
2025-06-01	1360.2	1354.8	1237.6	1200
2025-05-01	1360.2	1354.8	1237.6	1200
2025-04-01	1360.2	1354.8	1237.6	1200
2025-03-01	1360.2	1354.8	1237.6	1200
2025-02-01	1386.5	1388.3	1237.6	1200
2025-01-01	1385.2	1388.3	1237.6	1200
2024-12-01	1385.2	1388.3	1237.6	1200
2024-11-01	1385.2	1388.3	1237.6	1200
2024-10-01	1385.2	1388.3	1237.6	1200
2024-09-01	1303.6	1292.5	1237.6	1200
2024-08-01	1303.6	1292.5	1237.6	1200
2024-07-01	1273.7	1253.3	1237.6	1200
2024-09-01	1273.7	1253.3	1237.6	1200
2024-05-01	1256.6	1253.3	1196.8	1200
2024-04-01	1259.9	1253.3	1200	1200
2024-03-01	1267.1	1272	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	Paarl Boys' High School Chess Festival 2025 (B)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	2	1	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U15)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
3	Cape Town Chess Junior League 2025 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
4	CT Metro District East Schools Chess Individuals Trials 2025 (U15 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Paarl Boys' High School Chess Festival 2025 (B)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	2	1	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U15)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
3	Cape Town Chess Junior League 2025 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
4	CT Metro District East Schools Chess Individuals Trials 2025 (U15 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	Western Cape Top Schools Championship 2024 (U13 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	5.5	Yes	Analysis
6	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
7	Cape Town Junior League Finals 2024 (U13 Open A)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	5	2	2	Yes	Analysis
8	Cape Town Junior League Qualifier 2024 (U13 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	3	1	Yes	Analysis
9	Cape Town Metro Schools Chess Closed Individuals 2024 (U13 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
10	CT District East Schools Chess Individuals Trails 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis

#	Games	Start				End
1	10	Tournament CT Metro District East Top Schools Chess 2024				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2024-07-27	rnd 4	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 1
		Opponent Mertz, K (Kian)				Opponent Ludidi, P (Phokuhle)
2	4	Tournament Cape Town Junior League Finals 2024				Tournament CT Metro District East Top Schools Chess 2024
		date 2024-05-18	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Sangcosi, K (Kwakhanya)
3	4	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Cass, T (Troy)				Opponent Adolf, F (Feraydo)

#	Games	Start				End
1	10	Tournament CT Metro District East Top Schools Chess 2024				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2024-07-27	rnd 4	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 1
		Opponent Mertz, K (Kian)				Opponent Ludidi, P (Phokuhle)
2	4	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Cass, T (Troy)				Opponent Adolf, F (Feraydo)
3	3	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 1	type Standard	result 0.5	date 2025-05-10	rnd 3	type Standard	result 0.5
		Opponent Sonamzi, O (Ovayo)				Opponent Mefire, H (Habiba)

#	Games	Start				End
1	2	Tournament Cape Town Junior League Finals 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-05-18	rnd 2	type Rapid	result 1	date 2024-05-18	rnd 4	type Rapid	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Macilikishe, A (Anda)
2	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 2	type Rapid	result 1
		Opponent Beukes, B (Benjamin)				Opponent Beukes, B (Benjamin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament CT Metro District East Top Schools Chess 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 4	type Standard	result 1	date 2024-09-01	rnd 5	type Standard	result 1
		Opponent Mertz, K (Kian)				Opponent Rockman Gonzales, K (Kendal)
2	4	Tournament Cape Town Junior League Finals 2024				Tournament CT Metro District East Top Schools Chess 2024
		date 2024-05-18	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Sangcosi, K (Kwakhanya)
3	4	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Cass, T (Troy)				Opponent Adolf, F (Feraydo)

#	Games	Start				End
1	7	Tournament CT Metro District East Top Schools Chess 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 4	type Standard	result 1	date 2024-09-01	rnd 5	type Standard	result 1
		Opponent Mertz, K (Kian)				Opponent Rockman Gonzales, K (Kendal)
2	4	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Cass, T (Troy)				Opponent Adolf, F (Feraydo)
3	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament CT Metro District East Top Schools Chess 2024
		date 2024-03-03	rnd 6	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Williams, C (Cam'Ron)				Opponent Sangcosi, K (Kwakhanya)

#	Games	Start				End
1	2	Tournament Cape Town Junior League Finals 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-05-18	rnd 2	type Rapid	result 1	date 2024-05-18	rnd 4	type Rapid	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Macilikishe, A (Anda)
2	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 2	type Rapid	result 1
		Opponent Beukes, B (Benjamin)				Opponent Beukes, B (Benjamin)

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	Adolf ,F (Feraydo)	2	1	0	2	1	0	0	0	0	0	0	0
1	Adolf ,F (Feraydo)	2	1319.2	1319.2	2	1217.8	1319.2	0	0	0	0	0	0
2	Onyire ,P (Prince)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Onyire ,P (Prince)	1	1359.2	934.2	1	1312	934.2	0	0	0	0	0	0
3	Mefire ,H (Habiba)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Mefire ,H (Habiba)	1	1240.1	1240.1	1	1200	1240.1	0	0	0	0	0	0
4	Solari ,F (Flavio)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Solari ,F (Flavio)	1	1268	843	1	1269.2	843	0	0	0	0	0	0
5	Nceka ,B (Brandon)	1	1	425	1	1	425	0	0	0	0	0	0
5	Nceka ,B (Brandon)	1	1323.9	1748.9	1	1317.3	1748.9	0	0	0	0	0	0
6	Faure ,D (Douglas)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Faure ,D (Douglas)	1	1314.2	889.2	1	1269.6	889.2	0	0	0	0	0	0
7	Ntsikwa ,J (Junior)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ntsikwa ,J (Junior)	1	1228.6	803.6	1	1227.3	803.6	0	0	0	0	0	0
8	Mertz ,K (Kian)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mertz ,K (Kian)	1	1181.7	1606.7	1	1176.4	1606.7	0	0	0	0	0	0
9	Haman ,R (Rico)	1	1	425	1	1	425	0	0	0	0	0	0
9	Haman ,R (Rico)	1	1267.2	1692.2	1	1214	1692.2	0	0	0	0	0	0
10	Samuels ,J (Jean)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Samuels ,J (Jean)	1	1259.4	834.4	1	1247.1	834.4	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

Okonji, J (Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms