Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koutsouvelis, J (Joshua)

Chess SA id

1110151213

FIDE id

Date of birth

2011-09-25 (U16)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-12

Personal details last changed

1900-01-01

Junior GPX Games

54.2

Junior GPX Points

1188.8

Item	Main	Standard	Rapid	Blitz
Rating	1348.2	1368.1	1142.1	1199.7
Raw rating	1348.2	1368.1	1142.1	1199.7
Weighted rating	1291.8	1299.5	1140.9	1199.7
Weighted performance	1302	1300.7	0	0
Floor	848.2	868.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	134.3	130.5	180.1	165.9
Highest rating	1355.9 2024-07-01	1368.1 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1348.2 2025-08-01	1368.1 2025-08-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1341.1 2025-03-01	1346.6 2025-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1355.9 2024-07-01	1361.5 2024-07-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1348.2	1368.1	1142.1	1199.7
Analysis
Rating	1348.2	1368.1	1142.1	1199.7
Raw rating	1348.2	1368.1	1142.1	1199.7
Weighted rating	1291.8	1299.5	1140.9
Weighted performance	1302	1300.7	0
K-factor	36	36	36	36
Floor	848.2	868.1	700	700
Max/Min rating change allowed	134.3	130.5	180.1	165.9
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	1348.2	1368.1	1142.1	1199.7
New weighted rating	1297.6	1306.3	1140.8	1199.7
New weighted performance	1301.5	1300.2	0	0
Temp new rating	1348.2	1368.1	1142.1	1199.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1348.2	1368.1	1142.1	1199.7
New K-factor	36	36	36	36
New floor	848.2	868.1	700	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	52	44	0	8
	46	41	5	0
	26	22	4	0
	0	0	0	0
	0	0	0	0
History	124	107	9	8

Games since
	Main 98	Standard 85		Rapid 5		Blitz 8
Gender	Male
Age group	U16
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	2683		362		126
Male	2168		308		108
U16	417		61		34
U16 Male	315		51		30
Standard
	RSA		Province		Region
Overall	2390		321		112
Male	1941		269		94
U16	379		54		30
U16 Male	295		44		26
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	52	17.5	33.65	-138.9	1370.4	1231.4
Standard	44	14.5	32.95	-144.9	1363.4	1218.5
Rapid	0	0	0	0	0	0
Blitz	8	3	37.5	-106.2	1408.6	1302.3
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	124	50	40.32	-82.3	1314.2	1232
Standard	107	45	42.06	-67.5	1309.3	1241.8
Rapid	9	2	22.22	-236.1	1288.9	1052.8
Blitz	8	3	37.5	-106.2	1408.6	1302.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1348.2	1368.1	1142.1	1199.7
2025-09-01	1348.2	1368.1	1142.1	1199.7
2025-08-01	1348.2	1368.1	1142.1	1199.7
2025-07-01	1268.3	1272.1	1142.1	1199.7
2025-06-01	1265.6	1268.9	1142.1	1199.7
2025-05-01	1268	1272.9	1142.1	1199.7
2025-04-01	1263.7	1268	1142.1	1199.7
2025-03-01	1265.8	1269.4	1142.1	1199.5
2025-02-01	1259.8	1264.8	1139.9	1197
2025-01-01	1270.3	1280	1106	1200
2024-12-01	1262	1280.7	1106	1200
2024-11-01	1287.7	1280.7	1150	1200
2024-10-01	1287.7	1280.7	1150	1200
2024-09-01	1296.6	1291.5	1150	1200
2024-08-01	1341.1	1346.6	1150	1200
2024-07-01	1305.5	1311	1150	1200
2024-06-01	1305.5	1311	1150	1200
2024-08-01	1303.1	1306	1150	1200
2024-04-01	1303.1	1306	1150	1200
2024-03-01	1303.1	1306	1150	1200
2024-02-01	1181.3	1192.8	1150	1200
2024-01-01	1181.3	1192.8	1150	1200
2023-12-01	1181.3	1192.8	1150	1200
2023-11-01	1181.3	1192.8	1150	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	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3	Yes	Analysis
2	Eastern Cape Inter-Regional Team Chess Championship 2025 (U16)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	4	3	Yes	Analysis
3	NMBCU Closed 2025 (U16)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
4	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
5	NMBCU Trial 4 2025 (U16)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	5	0.5	Yes	Analysis
6	NMB 2nd Trials 2025 (U16)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	5	1.5	Yes	Analysis
7	Pearson High Chess Festival 2025 (B)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	4	2	Yes	Analysis
8	NMBCH Trial 1 2025 (U16)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
9	NMBCU vs BCC Derby Chess Invitational 2025 (Open A)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	4	0.5	Yes	Analysis
10	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	8	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3	Yes	Analysis
2	Eastern Cape Inter-Regional Team Chess Championship 2025 (U16)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	4	3	Yes	Analysis
3	NMBCU Closed 2025 (U16)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
4	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
5	NMBCU Trial 4 2025 (U16)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	5	0.5	Yes	Analysis
6	NMB 2nd Trials 2025 (U16)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	5	1.5	Yes	Analysis
7	Pearson High Chess Festival 2025 (B)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	4	2	Yes	Analysis
8	NMBCH Trial 1 2025 (U16)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
9	NMBCU vs BCC Derby Chess Invitational 2025 (Open A)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	4	0.5	Yes	Analysis
10	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	8	3	Yes	Analysis
11	Mzansi Interprovincial Youth Chess Championships 2024 (U14 Open Premier)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3	Yes	Analysis
12	Grey Junior School Chess Team Championship 2024 (Senior)	2024-11-02	2024-11-02	Rapid	Nelson Mandela Bay (ENM)	5	5	1	Yes	Analysis
13	NMBCU Closed 2024 (U14)	2024-09-20	2024-09-21	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
14	NMBCU Trial 5 2024 (U14)	2024-08-16	2024-08-17	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
15	NMBCU Trials 4 2024 (U14)	2024-07-12	2024-07-13	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
16	NMBCU Trial 3 2024 (U14)	2024-05-10	2024-05-11	Standard	Nelson Mandela Bay (ENM)	6	5	3	Yes	Analysis
17	NMBCU Trials 1 2024 (U14)	2024-02-16	2024-02-16	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
18	Pearson Open Chess Tournament 2024 (C)	2024-02-23	2024-02-24	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis
19	NMBCU Trial 4 2023 (U14)	2023-07-28	2023-07-29	Standard	Nelson Mandela Bay (ENM)	6	5	2	Yes	Analysis
20	EP Trials 3 2023 (U14)	2023-05-05	2023-05-06	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
21	Youth Chess Acadamy Rapid Tournament 2023 (B)	2023-03-11	2023-03-11	Rapid	Nelson Mandela Bay (ENM)	5	4	1	Yes	Analysis
22	NMB 2nd Trials 2023 (U14)	2023-03-24	2023-03-25	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
23	NMB 1st Trials 2023 (U14)	2023-02-17	2023-02-18	Standard	Nelson Mandela Bay (ENM)	6	5	1.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament Pearson Open Chess Tournament 2024				Tournament Pearson Open Chess Tournament 2024
		date 2024-02-23	rnd 1	type Standard	result 1	date 2024-02-24	rnd 5	type Standard	result 0.5
		Opponent Dadosa, B (Beza)				Opponent Mclachlan, G (Geoffrey)
2	4	Tournament NMBCU Trials 1 2024				Tournament NMBCU Trials 1 2024
		date 2024-02-16	rnd 2	type Standard	result 0.5	date 2024-02-16	rnd 5	type Standard	result 0.5
		Opponent De Jager, J (Jaeden)				Opponent Mclachlan, G (Geoffrey)
3	3	Tournament NMBCU Closed 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-06-14	rnd 6	type Standard	result 1	date 2025-07-10	rnd 2	type Standard	result 1
		Opponent April, E (Elethu)				Opponent Coetzee, S (Samual)

#	Games	Start				End
1	5	Tournament Pearson Open Chess Tournament 2024				Tournament Pearson Open Chess Tournament 2024
		date 2024-02-23	rnd 1	type Standard	result 1	date 2024-02-24	rnd 5	type Standard	result 0.5
		Opponent Dadosa, B (Beza)				Opponent Mclachlan, G (Geoffrey)
2	4	Tournament NMBCU Trials 1 2024				Tournament NMBCU Trials 1 2024
		date 2024-02-16	rnd 2	type Standard	result 0.5	date 2024-02-16	rnd 5	type Standard	result 0.5
		Opponent De Jager, J (Jaeden)				Opponent Mclachlan, G (Geoffrey)
3	3	Tournament NMBCU Closed 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-06-14	rnd 6	type Standard	result 1	date 2025-07-10	rnd 2	type Standard	result 1
		Opponent April, E (Elethu)				Opponent Coetzee, S (Samual)

#	Games	Start				End
1	1	Tournament Grey Junior School Chess Team Championship 2024				Tournament Grey Junior School Chess Team Championship 2024
		date 2024-11-02	rnd 1	type Rapid	result 1	date 2024-11-02	rnd 1	type Rapid	result 1
		Opponent Holtzhauzen, R (Reuben)				Opponent Holtzhauzen, R (Reuben)
2	1	Tournament Youth Chess Acadamy Rapid Tournament 2023				Tournament Youth Chess Acadamy Rapid Tournament 2023
		date 2023-03-11	rnd 3	type Rapid	result 1	date 2023-03-11	rnd 3	type Rapid	result 1
		Opponent Prinsloo, L (Liam)				Opponent Prinsloo, L (Liam)

#	Games	Start				End
1	2	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 4	type Blitz	result 1	date 2025-01-12	rnd 5	type Blitz	result 0.5
		Opponent Gcwabe, O (Othandwayo)				Opponent Bezuidenhout, M (Michyle)
2	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 8	type Blitz	result 1	date 2025-01-12	rnd 8	type Blitz	result 1
		Opponent Wilson, D (Dharrel)				Opponent Wilson, D (Dharrel)
3	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 1	type Blitz	result 0.5	date 2025-01-12	rnd 1	type Blitz	result 0.5
		Opponent Brown, N (Nathan)				Opponent Brown, N (Nathan)

#	Games	Start				End
1	4	Tournament Pearson Open Chess Tournament 2024				Tournament Pearson Open Chess Tournament 2024
		date 2024-02-23	rnd 1	type Standard	result 1	date 2024-02-24	rnd 4	type Standard	result 1
		Opponent Dadosa, B (Beza)				Opponent Lukashe, L (Lubabalo)
2	3	Tournament NMBCU Closed 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-06-14	rnd 6	type Standard	result 1	date 2025-07-10	rnd 2	type Standard	result 1
		Opponent April, E (Elethu)				Opponent Coetzee, S (Samual)
3	3	Tournament EP Trials 3 2023				Tournament EP Trials 3 2023
		date 2023-05-06	rnd 2	type Standard	result 1	date 2023-05-06	rnd 4	type Standard	result 1
		Opponent De Jager, L (Leon)				Opponent Kritzinger, L (Lune)

#	Games	Start				End
1	4	Tournament Pearson Open Chess Tournament 2024				Tournament Pearson Open Chess Tournament 2024
		date 2024-02-23	rnd 1	type Standard	result 1	date 2024-02-24	rnd 4	type Standard	result 1
		Opponent Dadosa, B (Beza)				Opponent Lukashe, L (Lubabalo)
2	3	Tournament NMBCU Closed 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-06-14	rnd 6	type Standard	result 1	date 2025-07-10	rnd 2	type Standard	result 1
		Opponent April, E (Elethu)				Opponent Coetzee, S (Samual)
3	3	Tournament EP Trials 3 2023				Tournament EP Trials 3 2023
		date 2023-05-06	rnd 2	type Standard	result 1	date 2023-05-06	rnd 4	type Standard	result 1
		Opponent De Jager, L (Leon)				Opponent Kritzinger, L (Lune)

#	Games	Start				End
1	1	Tournament Grey Junior School Chess Team Championship 2024				Tournament Grey Junior School Chess Team Championship 2024
		date 2024-11-02	rnd 1	type Rapid	result 1	date 2024-11-02	rnd 1	type Rapid	result 1
		Opponent Holtzhauzen, R (Reuben)				Opponent Holtzhauzen, R (Reuben)
2	1	Tournament Youth Chess Acadamy Rapid Tournament 2023				Tournament Youth Chess Acadamy Rapid Tournament 2023
		date 2023-03-11	rnd 3	type Rapid	result 1	date 2023-03-11	rnd 3	type Rapid	result 1
		Opponent Prinsloo, L (Liam)				Opponent Prinsloo, L (Liam)

#	Games	Start				End
1	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 8	type Blitz	result 1	date 2025-01-12	rnd 8	type Blitz	result 1
		Opponent Wilson, D (Dharrel)				Opponent Wilson, D (Dharrel)
2	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 4	type Blitz	result 1	date 2025-01-12	rnd 4	type Blitz	result 1
		Opponent Gcwabe, O (Othandwayo)				Opponent Gcwabe, O (Othandwayo)

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	Botlhole ,E (Erato)	5	2.5	0	5	2.5	0	0	0	0	0	0	0
1	Botlhole ,E (Erato)	5	1344.7	1344.7	5	1343.8	1344.7	0	0	0	0	0	0
2	Ranjith ,A (Aishwarya)	5	3	85	4	3	212.5	1	0	-425	0	0	0
2	Ranjith ,A (Aishwarya)	5	1414	1499	4	1402.3	1626.5	1	1235.3	989	0	0	0
3	Ackerdien ,S (Saud)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
3	Ackerdien ,S (Saud)	4	1311.4	992.6	4	1307.3	992.6	0	0	0	0	0	0
4	Heneke ,R (Ruan)	4	3	212.5	3	3	425	1	0	-425	0	0	0
4	Heneke ,R (Ruan)	4	1284.1	1496.6	3	1280.8	1709.1	1	1226.1	859.1	0	0	0
5	Coetzee ,S (Schalk)	4	0	-425	3	0	-425	0	0	0	1	0	-425
5	Coetzee ,S (Schalk)	4	1434.1	1009.1	3	1408.4	1009.1	0	0	0	1	1200	1009.1
6	Coetzee ,S (Samual)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
6	Coetzee ,S (Samual)	3	1557.9	1841.2	3	1553.1	1841.2	0	0	0	0	0	0
7	De Jager ,J (Jaeden)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
7	De Jager ,J (Jaeden)	3	1274.5	1132.9	3	1259.8	1132.9	0	0	0	0	0	0
8	Dugmore ,D (Deacon)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
8	Dugmore ,D (Deacon)	3	1425.9	1142.6	3	1427.5	1142.6	0	0	0	0	0	0
9	Boggenpoel ,B (Blake)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
9	Boggenpoel ,B (Blake)	3	1264.8	1406.4	3	1260.7	1406.4	0	0	0	0	0	0
10	Brown ,N (Nathan)	3	0.5	-283.3	2	0	-425	0	0	0	1	0.5	0
10	Brown ,N (Nathan)	3	1417.3	1134	2	1429.8	992.3	0	0	0	1	1224	1417.3

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Koutsouvelis, J (Joshua)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms