Chess South Africa Ratings Database

PLAYER PAGE

Personal

Heydenrych, J (Jana)

Chess SA id

2100099926

FIDE id

Date of birth

2010-05-01 (U16)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-08-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1159.3	1152.4	1130.4	1200
Raw rating	1159.3	1152.4	1130.4	1200
Weighted rating	1159.3	1152.4	1130.4	1200
Weighted performance	839.4	0	738.1	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	175.7	177.5	183.1	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1159.3	1152.4	1130.4	1200
Analysis
Rating	1159.3	1152.4	1130.4	1200
Raw rating	1159.3	1152.4	1130.4	1200
Weighted rating	1159.3	1152.4	1130.4
Weighted performance	839.4	0	738.1
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	175.7	177.5	183.1	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	1159.3	1152.4	1130.4	1200
New weighted rating	1159.3	1152.4	1130.4	1200
New weighted performance	832.4	0	731.7	0
Temp new rating	1159.3	1152.4	1130.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1159.3	1152.4	1130.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	28	10	18
	10	0	10
	0	0	0
History	49	21	28

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	49	18	36.73	-112.8	1200.6	1087.8
Standard	21	8	38.1	-101.2	1201.3	1100.1
Rapid	28	10	35.71	-121.4	1200.1	1078.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1159.3	1152.4	1130.4	1200
2025-09-30	1159.3	1152.4	1130.4	1200
2025-09-01	1159.3	1152.4	1130.4	1200
2025-08-01	1159.3	1152.4	1130.4	1200
2025-07-01	1159.3	1152.4	1130.4	1200
2025-06-01	1159.3	1152.4	1130.4	1200
2025-05-01	1159.3	1152.4	1130.4	1200
2025-04-01	1159.3	1152.4	1130.4	1200
2025-03-01	1159.3	1152.4	1130.4	1200
2025-02-01	1159.3	1152.4	1130.4	1200
2025-01-01	1159.3	1152.4	1130.4	1200
2024-12-01	1159.3	1152.4	1130.4	1200
2024-11-01	1159.3	1152.4	1130.4	1200
2024-10-01	1159.3	1152.4	1130.4	1200
2024-09-01	1159.3	1152.4	1130.4	1200
2024-08-01	1159.3	1152.4	1130.4	1200
2024-07-01	1159.3	1152.4	1130.4	1200
2024-09-01	1159.3	1152.4	1130.4	1200
2024-05-01	1159.3	1152.4	1130.4	1200
2024-04-01	1159.3	1152.4	1130.4	1200
2024-03-01	1159.3	1152.4	1130.4	1200
2024-02-01	1159.3	1152.4	1130.4	1200
2024-01-01	1159.3	1152.4	1130.4	1200
2023-12-01	1159.3	1152.4	1130.4	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Top Schools 2023 (U13)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
2	Zwelihle Chess Club Rapid 2023 (C)	2023-06-17	2023-06-17	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
3	Hermanus Rapid 2023 (C)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis
4	Overberg School Chess Closed Tournament 2023 (U13 Girls)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
5	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
6	The Hermanus Open 2022 (U14)	2022-05-14	2022-05-14	Rapid	Overberg (WOS)	6	5	1	Yes	Analysis
7	OCF Open 2022 (U14)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	1	Yes	Analysis
8	Overberg 2nd Trial 2018 (U10)	2018-05-05	2018-05-05	Standard	Overberg (WOS)	5	5	0.5	Yes	Analysis
9	Overberg Schools Closed 2018 (U9 Girls)	2018-03-23	2018-03-24	Standard	Overberg (WOS)	6	6	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 3	type Standard	result 0.5
		Opponent Rock, M (Mieke)				Opponent Du Toit, M (Matthew)
2	3	Tournament Zwelihle Chess Club Rapid 2023				Tournament Zwelihle Chess Club Rapid 2023
		date 2023-06-17	rnd 2	type Rapid	result 1	date 2023-06-17	rnd 4	type Rapid	result 1
		Opponent Van Der Merwe, K (Kai)				Opponent Wildschut, G (Ge- Earl)
3	2	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 5	type Rapid	result 1
		Opponent Jam Jam, B (Buhle)				Opponent Bota, A (Alupheli)

#	Games	Start				End
1	3	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 3	type Standard	result 0.5
		Opponent Rock, M (Mieke)				Opponent Du Toit, M (Matthew)
2	1	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 5	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Geldenhuys, R (Reynhardt)				Opponent Geldenhuys, R (Reynhardt)
3	1	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 4	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Mazala, A (Asakhe)				Opponent Mazala, A (Asakhe)

#	Games	Start				End
1	3	Tournament Zwelihle Chess Club Rapid 2023				Tournament Zwelihle Chess Club Rapid 2023
		date 2023-06-17	rnd 2	type Rapid	result 1	date 2023-06-17	rnd 4	type Rapid	result 1
		Opponent Van Der Merwe, K (Kai)				Opponent Wildschut, G (Ge- Earl)
2	2	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 5	type Rapid	result 1
		Opponent Jam Jam, B (Buhle)				Opponent Bota, A (Alupheli)
3	2	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Bester, A (Amorey)				Opponent Mazala, A (Asakhe)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Zwelihle Chess Club Rapid 2023				Tournament Zwelihle Chess Club Rapid 2023
		date 2023-06-17	rnd 2	type Rapid	result 1	date 2023-06-17	rnd 4	type Rapid	result 1
		Opponent Van Der Merwe, K (Kai)				Opponent Wildschut, G (Ge- Earl)
2	2	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Rock, M (Mieke)				Opponent Louw, K (Kayden)
3	2	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 5	type Rapid	result 1
		Opponent Jam Jam, B (Buhle)				Opponent Bota, A (Alupheli)

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Rock, M (Mieke)				Opponent Louw, K (Kayden)
2	1	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 5	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Geldenhuys, R (Reynhardt)				Opponent Geldenhuys, R (Reynhardt)
3	1	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 4	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Mazala, A (Asakhe)				Opponent Mazala, A (Asakhe)

#	Games	Start				End
1	3	Tournament Zwelihle Chess Club Rapid 2023				Tournament Zwelihle Chess Club Rapid 2023
		date 2023-06-17	rnd 2	type Rapid	result 1	date 2023-06-17	rnd 4	type Rapid	result 1
		Opponent Van Der Merwe, K (Kai)				Opponent Wildschut, G (Ge- Earl)
2	2	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 5	type Rapid	result 1
		Opponent Jam Jam, B (Buhle)				Opponent Bota, A (Alupheli)
3	2	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Bester, A (Amorey)				Opponent Mazala, A (Asakhe)

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	Mazala ,A (Asakhe)	2	2	425	1	1	425	1	1	425	0	0	0
1	Mazala ,A (Asakhe)	2	972.7	1397.7	1	960.6	1397.7	1	1158.4	1397.7	0	0	0
2	Du Toit ,M (Matthew)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
2	Du Toit ,M (Matthew)	2	1170.9	958.4	1	1166.4	1170.9	1	1200	745.9	0	0	0
3	Koko ,A (Anisa)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Koko ,A (Anisa)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Geldenhuys ,R (Reynhardt)	1	1	425	1	1	425	0	0	0	0	0	0
4	Geldenhuys ,R (Reynhardt)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Du Plessis ,L (Luc)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Du Plessis ,L (Luc)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
6	Bekker ,A (Armin)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Bekker ,A (Armin)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Dyavu ,P (Phila)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Dyavu ,P (Phila)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Rock ,M (Mieke)	1	1	425	1	1	425	0	0	0	0	0	0
8	Rock ,M (Mieke)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Van Der Merwe ,K (Kai)	1	1	425	0	0	0	1	1	425	0	0	0
9	Van Der Merwe ,K (Kai)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Joubert ,S (Sumari)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Joubert ,S (Sumari)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Heydenrych, J (Jana)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms