Chess South Africa Ratings Database

PLAYER PAGE

Personal

Cornforth, J (Joshua)

Chess SA id

1170156971

FIDE id

Date of birth

2017-06-12 (U10)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

55.7

Junior GPX Points

1209.2

Item	Main	Standard	Rapid	Blitz
Rating	1290.9	1310.2	1199.9	1200
Raw rating	1290.9	1310.2	1199.9	1200
Weighted rating	1242.2	1252.6	1199.9	1200
Weighted performance	1267.1	1282.9	0	0
Floor	813.2	841.7	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	145.7	141.7	165.8	165.8
Highest rating	1313.2 2025-08-01	1341.7 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1313.2 2025-08-01	1341.7 2025-08-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1293.7 2018-10-01	1245.5 2025-09-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1313.2 2025-08-01	1341.7 2024-05-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1290.9	1310.2	1199.9	1200
Analysis
Rating	1290.9	1310.2	1199.9	1200
Raw rating	1290.9	1310.2	1199.9	1200
Weighted rating	1242.2	1252.6	1199.9
Weighted performance	1267.1	1282.9	0
K-factor	36	36	36	36
Floor	813.2	841.7	700	700
Max/Min rating change allowed	145.7	141.7	165.8	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	1290.9	1310.2	1199.9	1200
New weighted rating	1247.8	1259.2	1199.9	1200
New weighted performance	1266.6	1282.4	0	0
Temp new rating	1290.9	1310.2	1199.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1290.9	1310.2	1199.9	1200
New K-factor	36	36	36	36
New floor	813.2	841.7	700	700

Item	Main	Standard	Rapid
	0	0	0
	52	47	5
	54	54	0
	5	5	0
	0	0	0
	0	0	0
History	111	106	5

Games since
	Main 106	Standard 101		Rapid 5		Blitz 0
Gender	Male
Age group	U10
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3272		1067		300
Male	2571		782		215
U10	271		90		35
U10 Male	220		66		23
Standard
	RSA		Province		Region
Overall	2961		848		285
Male	2336		606		202
U10	235		68		35
U10 Male	194		50		24
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-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	52	25	48.08	-16.3	1296.1	1279.8
Standard	47	23	48.94	-9	1298.9	1289.9
Rapid	5	2	40	-85	1269.7	1184.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	111	51	45.95	-34.5	1257.6	1223.1
Standard	106	49	46.23	-32.1	1257	1225
Rapid	5	2	40	-85	1269.7	1184.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1290.9	1310.2	1199.9	1200
2025-09-01	1290.9	1310.2	1199.9	1200
2025-08-01	1313.2	1341.7	1199.9	1200
2025-07-01	1224.2	1231.1	1199.8	1200
2025-06-01	1224.2	1231.1	1198.7	1200
2025-05-01	1227.8	1231.1	1200	1200
2025-04-01	1293.7	1304.2	1200	1200
2025-03-01	1250.5	1264.5	1200	1200
2025-02-01	1198.6	1201.7	1200	1200
2025-01-01	1150.3	1158.5	1200	1200
2024-12-01	1253.3	1266.5	1200	1200
2024-11-01	1253.3	1266.5	1200	1200
2024-10-01	1253.3	1266.5	1200	1200
2024-09-01	1231.5	1236.3	1200	1200
2024-08-01	1231.5	1236.3	1200	1200
2024-07-01	1229.7	1234.5	1200	1200
2024-06-01	1264.7	1276.6	1200	1200
2024-08-01	1228	1242.8	1200	1200
2024-04-01	1131.2	1120	1200	1200
2024-03-01	1134.8	1122.2	1200	1200
2024-02-01	1163.2	1154.6	1200	1200
2024-01-01	1163.2	1154.6	1200	1200
2023-12-01	1163.2	1154.6	1200	1200
2023-11-01	1163.2	1154.6	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	2025 Eden Open & Women's Tournament (U10)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	1	Yes	Analysis
2	George Top Schools 2025 (U9)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	4	4	Yes	Analysis
3	Dennie Chess Rapid Tournament Open 2025 (U9)	2025-05-24	2025-05-24	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
4	Eden Chess Trials 2 2025 (U10)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
5	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	0	Yes	Analysis
6	Eden Schools Chess Trials 1 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	George Schools Chess Trials 3 2025 (U9 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
8	George Schools Chess Trials 2 2025 (U9 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	George Schools Chess Trials 1 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Eden Open & Women's Tournament (U10)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	1	Yes	Analysis
2	George Top Schools 2025 (U9)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	4	4	Yes	Analysis
3	Dennie Chess Rapid Tournament Open 2025 (U9)	2025-05-24	2025-05-24	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
4	Eden Chess Trials 2 2025 (U10)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
5	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	0	Yes	Analysis
6	Eden Schools Chess Trials 1 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	George Schools Chess Trials 3 2025 (U9 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
8	George Schools Chess Trials 2 2025 (U9 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	George Schools Chess Trials 1 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
10	Mzansi Interprovincial Youth Chess Championships 2024 (U8 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	0.5	Yes	Analysis
11	Western Cape Top Schools Championship 2024 (U7 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	5	4	3	Yes	Analysis
12	George Primary Top Schools 2024 (U7)	2024-07-20	2024-07-20	Standard	Eden (WEG)	5	4	2	Yes	Analysis
13	Eden Open 2024 (D)	2024-06-22	2024-06-22	Standard	Eden (WEG)	5	5	1	Yes	Analysis
14	Western Cape PS Individuals Championship 2024 (U7 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
15	Eden Chess Trials 2 2024 (U8)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	7	Yes	Analysis
16	Eden School Chess Trials 1 2024 (U7 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	4	2	Yes	Analysis
17	George Schools Trials 3 2024 (U7 Boys)	2024-03-02	2024-03-02	Standard	Eden (WEG)	5	5	2	Yes	Analysis
18	George Schools Trials 2 2024 (U7 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	4	2	Yes	Analysis
19	George Schools Trials 1 2024 (U7 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	1.5	Yes	Analysis
20	George Chess Club Winter Open 2023 (D)	2023-05-20	2023-05-20	Standard	Eden (WEG)	5	5	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament Eden School Chess Trials 1 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-09	rnd 4	type Standard	result 1	date 2024-04-13	rnd 3	type Standard	result 1
		Opponent Kennedy, C (Cuan)				Opponent Van Der Merwe, F (Finley)
2	4	Tournament George Top Schools 2025				Tournament George Top Schools 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Morris, J (Jaydon)				Opponent Van der Poel, H (Hans)
3	4	Tournament Eden Chess Trials 2 2024				Tournament Eden Chess Trials 2 2024
		date 2024-04-13	rnd 5	type Standard	result 1	date 2024-04-20	rnd 8	type Standard	result 1
		Opponent Janse Van Rensburg, L (Louise)				Opponent De Swart, R (Rebecca)

#	Games	Start				End
1	6	Tournament Eden Chess Trials 2 2025				Tournament George Top Schools 2025
		date 2025-04-12	rnd 9	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Pentz, T (Taylor)				Opponent Van der Poel, H (Hans)
2	5	Tournament Eden School Chess Trials 1 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-09	rnd 4	type Standard	result 1	date 2024-04-13	rnd 3	type Standard	result 1
		Opponent Kennedy, C (Cuan)				Opponent Van Der Merwe, F (Finley)
3	4	Tournament Eden Chess Trials 2 2024				Tournament Eden Chess Trials 2 2024
		date 2024-04-13	rnd 5	type Standard	result 1	date 2024-04-20	rnd 8	type Standard	result 1
		Opponent Janse Van Rensburg, L (Louise)				Opponent De Swart, R (Rebecca)

#	Games	Start				End
1	1	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 4	type Rapid	result 1	date 2025-05-24	rnd 4	type Rapid	result 1
		Opponent Janse van Rensburg, O (Oliver)				Opponent Janse van Rensburg, O (Oliver)
2	1	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 2	type Rapid	result 1	date 2025-05-24	rnd 2	type Rapid	result 1
		Opponent Ruiters, Z (Zayaan)				Opponent Ruiters, Z (Zayaan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament George Top Schools 2025				Tournament George Top Schools 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Morris, J (Jaydon)				Opponent Van der Poel, H (Hans)
2	3	Tournament George Schools Chess Trials 3 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Beukes, C (Clayton)				Opponent Cilliers, T (Tylor)
3	3	Tournament George Schools Chess Trials 2 2025				Tournament George Schools Chess Trials 2 2025
		date 2025-02-15	rnd 2	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Paulis, I (Isa)				Opponent Janse van Rensburg, O (Oliver)

#	Games	Start				End
1	6	Tournament Eden Chess Trials 2 2025				Tournament George Top Schools 2025
		date 2025-04-12	rnd 9	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Pentz, T (Taylor)				Opponent Van der Poel, H (Hans)
2	3	Tournament George Schools Chess Trials 3 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Beukes, C (Clayton)				Opponent Cilliers, T (Tylor)
3	3	Tournament George Schools Chess Trials 2 2025				Tournament George Schools Chess Trials 2 2025
		date 2025-02-15	rnd 2	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Paulis, I (Isa)				Opponent Janse van Rensburg, O (Oliver)

#	Games	Start				End
1	1	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 4	type Rapid	result 1	date 2025-05-24	rnd 4	type Rapid	result 1
		Opponent Janse van Rensburg, O (Oliver)				Opponent Janse van Rensburg, O (Oliver)
2	1	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 2	type Rapid	result 1	date 2025-05-24	rnd 2	type Rapid	result 1
		Opponent Ruiters, Z (Zayaan)				Opponent Ruiters, Z (Zayaan)

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	Rens ,B (Beauwin)	9	1	-330.6	9	1	-330.6	0	0	0	0	0	0
1	Rens ,B (Beauwin)	9	1325.3	994.7	9	1334.3	994.7	0	0	0	0	0	0
2	Van Der Merwe ,F (Finley)	7	1	-303.6	7	1	-303.6	0	0	0	0	0	0
2	Van Der Merwe ,F (Finley)	7	1200.9	897.3	7	1192.9	897.3	0	0	0	0	0	0
3	Vermeulen ,E (Elster)	6	1.5	-212.5	6	1.5	-212.5	0	0	0	0	0	0
3	Vermeulen ,E (Elster)	6	1328.8	1116.3	6	1331.6	1116.3	0	0	0	0	0	0
4	Rens ,D (Deauwin)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
4	Rens ,D (Deauwin)	4	1272.5	953.8	4	1277.6	953.8	0	0	0	0	0	0
5	Hessie ,L (Luke)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
5	Hessie ,L (Luke)	4	1261.2	1048.8	4	1256.7	1048.8	0	0	0	0	0	0
6	Rostoll ,A (Arno)	4	1	-212.5	3	1	-141.7	1	0	-425	0	0	0
6	Rostoll ,A (Arno)	4	1356.6	1144.1	3	1339.1	1215	1	1200	931.6	0	0	0
7	Kotze ,B (Barend)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
7	Kotze ,B (Barend)	3	1220.3	1361.9	3	1222.5	1361.9	0	0	0	0	0	0
8	Asghar ,L (Luca)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Asghar ,L (Luca)	2	1287.3	1074.8	2	1251.1	1074.8	0	0	0	0	0	0
9	Bruiners ,J (Jeanne)	2	1	0	2	1	0	0	0	0	0	0	0
9	Bruiners ,J (Jeanne)	2	1167.7	1167.7	2	1161	1167.7	0	0	0	0	0	0
10	Kennedy ,C (Cuan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Kennedy ,C (Cuan)	2	1112.4	1324.9	2	1093.6	1324.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Cornforth, J (Joshua)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms