Chess South Africa Ratings Database

PLAYER PAGE

Personal

Cronje, J (Johannes Christiaan)

Chess SA id

1130304140

FIDE id

Date of birth

2013-01-01 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

NAM

Titles

Chess SA registered

Last active game

2025-07-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1435.7	1417.6	1504	1463.9
Raw rating	1435.7	1417.6	1504	1453
Weighted rating	1419.7	1409.9	1475.6	1463.9
Weighted performance	0	0	0	0
Floor	955.3	948.6	1004	1004
K-factor	32	32	32	32
Min/Max rating change allowed	118.5	121.6	107.5	115.6
Highest rating	1455.3 2024-06-01	1448.6 2024-06-01	1504 2024-06-01	1504 2024-06-01
Highest raw rating	1455.3 2024-06-01	1448.6 2024-06-01	1504 2024-06-01	1504 2024-06-01
Highest weighted rating	1455.3 2024-10-01	1448.6 2024-10-01	1504 2024-10-01	1504 2024-10-01
Highest weighted performance	1277.4 2024-05-01	1260.9 2024-05-01	1200 2024-06-01	1200 2024-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	3.5
New rating	1435.7	1417.6	1504	1467.4
Analysis
Rating	1435.7	1417.6	1504	1463.9
Raw rating	1435.7	1417.6	1504	1453
Weighted rating	1419.7	1409.9	1475.6
Weighted performance	0	0	0
K-factor	32	32	32	32
Floor	955.3	948.6	1004	1004
Max/Min rating change allowed	118.5	121.6	107.5	115.6
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	1435.7	1417.6	1504	1453
New weighted rating	1424.7	1413.9	1482.7	1467.4
New weighted performance	0	0	0	0
Temp new rating	1435.7	1417.6	1504	1467.4
Temp new rating +/-	0	0	0	3.5
Final new rating +/-	0	0	0	3.5
New rating	1435.7	1417.6	1504	1467.4
New K-factor	32	32	32	32
New floor	955.3	948.6	1004	1004

Item	Main	Standard	Blitz
	0	0	0
	25	16	9
	6	6	0
	0	0	0
	0	0	0
	0	0	0
History	31	22	9

Games since
	Main 31	Standard 22		Rapid 0		Blitz 9
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	25	11	44	-51	1519.1	1468.1
Standard	16	7	43.75	-53.1	1436	1382.9
Rapid	0	0	0	0	0	0
Blitz	9	4	44.44	-47.2	1666.9	1619.7
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	31	14	45.16	-41.1	1471.4	1430.3
Standard	22	10	45.45	-38.6	1391.5	1352.8
Rapid	0	0	0	0	0	0
Blitz	9	4	44.44	-47.2	1666.9	1619.7

Date	Main	Standard	Rapid	Blitz
2025-09-30	1435.7	1417.6	1504	1453
2025-09-01	1435.7	1417.6	1504	1453
2025-08-01	1435.7	1417.6	1504	1453
2025-07-01	1427.4	1416.3	1504	1504
2025-06-01	1427.4	1416.3	1504	1504
2025-05-01	1427.4	1416.3	1504	1504
2025-04-01	1427.4	1416.3	1504	1504
2025-03-01	1455.3	1448.6	1504	1504
2025-02-01	1455.3	1448.6	1504	1504
2025-01-01	1455.3	1448.6	1504	1504
2024-12-01	1455.3	1448.6	1504	1504
2024-11-01	1455.3	1448.6	1504	1504
2024-10-01	1455.3	1448.6	1504	1504
2024-09-01	1455.3	1448.6	1504	1504
2024-08-01	1455.3	1448.6	1504	1504
2024-07-01	1455.3	1448.6	1504	1504
2024-06-01	1455.3	1448.6	1504	1504
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	South African Open 2025 (B)	2025-06-28	2025-07-05	Standard	Johannesburg Metro (GJM)	11	11	5	Yes	Analysis
2	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
3	AHS Open Chess Tournament 2025 (C)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	South African Open 2025 (B)	2025-06-28	2025-07-05	Standard	Johannesburg Metro (GJM)	11	11	5	Yes	Analysis
2	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
3	AHS Open Chess Tournament 2025 (C)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
4	Steinitz Chess Festival 2024 (Open)	2024-05-10	2024-05-12	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 7	type Standard	result 1	date 2025-07-04	rnd 9	type Standard	result 1
		Opponent Seema, T (Tshepang)				Opponent Jenkins, T (Tauriq)
2	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 3	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Van Der Berg, J (Jay)				Opponent Papanicolaou, M (Mila)
3	2	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Botha, L (Logan)				Opponent Van Rooyen, D (Dandre)

#	Games	Start				End
1	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 7	type Standard	result 1	date 2025-07-04	rnd 9	type Standard	result 1
		Opponent Seema, T (Tshepang)				Opponent Jenkins, T (Tauriq)
2	2	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Botha, L (Logan)				Opponent Van Rooyen, D (Dandre)
3	2	Tournament Steinitz Chess Festival 2024				Tournament Steinitz Chess Festival 2024
		date 2024-05-12	rnd 5	type Standard	result 0.5	date 2024-05-12	rnd 6	type Standard	result 1
		Opponent Abrahams, H (Harrison)				Opponent Viljoen, W (Wynand)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 3	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Van Der Berg, J (Jay)				Opponent Papanicolaou, M (Mila)
2	1	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 8	type Blitz	result 1	date 2025-07-02	rnd 8	type Blitz	result 1
		Opponent Changara, A (Adiel Tavonga)				Opponent Changara, A (Adiel Tavonga)

#	Games	Start				End
1	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 7	type Standard	result 1	date 2025-07-04	rnd 9	type Standard	result 1
		Opponent Seema, T (Tshepang)				Opponent Jenkins, T (Tauriq)
2	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 3	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Van Der Berg, J (Jay)				Opponent Papanicolaou, M (Mila)
3	2	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Botha, L (Logan)				Opponent Van Rooyen, D (Dandre)

#	Games	Start				End
1	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 7	type Standard	result 1	date 2025-07-04	rnd 9	type Standard	result 1
		Opponent Seema, T (Tshepang)				Opponent Jenkins, T (Tauriq)
2	2	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Botha, L (Logan)				Opponent Van Rooyen, D (Dandre)
3	1	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-06-30	rnd 5	type Standard	result 1	date 2025-06-30	rnd 5	type Standard	result 1
		Opponent Chidi, J (Junior)				Opponent Chidi, J (Junior)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 3	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Van Der Berg, J (Jay)				Opponent Papanicolaou, M (Mila)
2	1	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 8	type Blitz	result 1	date 2025-07-02	rnd 8	type Blitz	result 1
		Opponent Changara, A (Adiel Tavonga)				Opponent Changara, A (Adiel Tavonga)

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	Hodgson ,TF (Timothy Fish)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Hodgson ,TF (Timothy Fish)	1	1687.8	1262.8	1	1656.4	1262.8	0	0	0	0	0	0
2	Watson ,C (Cole)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Watson ,C (Cole)	1	1344.6	1344.6	1	1373.9	1344.6	0	0	0	0	0	0
3	Abrahams ,H (Harrison)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Abrahams ,H (Harrison)	1	1132.9	1132.9	1	1099	1132.9	0	0	0	0	0	0
4	Senthumule ,M (Meshack)	1	1	425	1	1	425	0	0	0	0	0	0
4	Senthumule ,M (Meshack)	1	1541	1966	1	1540.2	1966	0	0	0	0	0	0
5	Viljoen ,W (Wynand)	1	1	425	1	1	425	0	0	0	0	0	0
5	Viljoen ,W (Wynand)	1	1288.3	1713.3	1	1264	1713.3	0	0	0	0	0	0
6	Motiang ,RT (Refentse Tumisang)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Motiang ,RT (Refentse Tumisang)	1	1613.2	1188.2	1	1639.6	1188.2	0	0	0	0	0	0
7	Mphahlele ,TL (Thabang)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mphahlele ,TL (Thabang)	1	1682.6	1257.6	1	1682	1257.6	0	0	0	0	0	0
8	Mcintosh ,H (Hamish)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mcintosh ,H (Hamish)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Mahamotsa ,W (Wilson M)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mahamotsa ,W (Wilson M)	1	1284	1709	1	1269.3	1709	0	0	0	0	0	0
10	Theko ,PP (Philani Prince)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Theko ,PP (Philani Prince)	1	1284.7	859.7	1	1279.7	859.7	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

Cronje, J (Johannes Christiaan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms