Chess South Africa Ratings Database

PLAYER PAGE

Personal

Heydenrych, JN (Johannes Nicolaas)

Chess SA id

100012445

FIDE id

Date of birth

2000-11-16 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-08-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1079.9	1084	1062.4	1062.4
Raw rating	1079.9	1084	1062.4	1062.4
Weighted rating	1079.9	1084	1062.4	1062.4
Weighted performance	0	0	0	0
Floor	598.2	606.8	562.4	562.4
K-factor	40	40	40	40
Min/Max rating change allowed	196.8	195.6	201.7	201.7
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1098.2 2018-04-01	1106.8 2018-04-01	1062.4 2024-02-01	1062.4 2024-02-01
Highest weighted rating	1098.2 2024-11-01	1106.8 2024-11-01	1062.4 2024-11-01	1062.4 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1079.9	1084	1062.4	1062.4
Analysis
Rating	1079.9	1084	1062.4	1062.4
Raw rating	1079.9	1084	1062.4	1062.4
Weighted rating	1079.9	1084	1062.4
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	598.2	606.8	562.4	562.4
Max/Min rating change allowed	196.8	195.6	201.7	201.7
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	1079.9	1084	1062.4	1062.4
New weighted rating	1079.9	1084	1062.4	1062.4
New weighted performance	0	0	0	0
Temp new rating	1079.9	1084	1062.4	1062.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1079.9	1084	1062.4	1062.4
New K-factor	40	40	40	40
New floor	598.2	606.8	562.4	562.4

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	475	463	12

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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	21	10	47.62	-20.2	1096.1	1075.9
Standard	21	10	47.62	-20.2	1096.1	1075.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1079.9	1084	1062.4	1062.4
2025-09-01	1079.9	1084	1062.4	1062.4
2025-08-01	1079.9	1084	1062.4	1062.4
2025-07-01	1079.9	1084	1062.4	1062.4
2025-06-01	1079.9	1084	1062.4	1062.4
2025-05-01	1079.9	1084	1062.4	1062.4
2025-04-01	1079.9	1084	1062.4	1062.4
2025-03-01	1079.9	1084	1062.4	1062.4
2025-02-01	1079.9	1084	1062.4	1062.4
2025-01-01	1079.9	1084	1062.4	1062.4
2024-12-01	1079.9	1084	1062.4	1062.4
2024-11-01	1079.9	1084	1062.4	1062.4
2024-10-01	1079.9	1084	1062.4	1062.4
2024-09-01	1079.9	1084	1062.4	1062.4
2024-08-01	1079.9	1084	1062.4	1062.4
2024-07-01	1079.9	1084	1062.4	1062.4
2024-06-01	1079.9	1084	1062.4	1062.4
2024-08-01	1079.9	1084	1062.4	1062.4
2024-04-01	1079.9	1084	1062.4	1062.4
2024-03-01	1079.9	1084	1062.4	1062.4
2024-02-01	1079.9	1084	1062.4	1062.4
2024-01-01	1079.9	1084	1062.4	1062.4
2023-12-01	1079.9	1084	1062.4	1062.4
2023-11-01	1079.9	1084	1062.4	1062.4

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	2018 Gauteng League Final (U19)	2018-08-25	2018-08-25	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
2	D8 Team League 2018 (U19)	2018-07-28	2018-07-28	Standard	Sedibeng (GSV)	6	4	2	Yes	Analysis
3	D8 Individual 2018 (U19 Boys)	2018-03-17	2018-03-17	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	South African Junior Team Championships 2017 (U18C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament D8 Individual 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-03-17	rnd 2	type Standard	result 1
		Opponent Mbonani, S (Sihle)				Opponent Mthethwa, S (Sibongiseni)
2	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 2	type Standard	result 0.5	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Johr, D (Dylan)				Opponent Steenkamp, P (Pieter)
3	1	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 4	type Standard	result 1	date 2018-08-25	rnd 4	type Standard	result 1
		Opponent Buzanga, M (Moses)				Opponent Buzanga, M (Moses)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament D8 Individual 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-03-17	rnd 2	type Standard	result 1
		Opponent Mbonani, S (Sihle)				Opponent Mthethwa, S (Sibongiseni)
2	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 2	type Standard	result 0.5	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Johr, D (Dylan)				Opponent Steenkamp, P (Pieter)
3	1	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 4	type Standard	result 1	date 2018-08-25	rnd 4	type Standard	result 1
		Opponent Buzanga, M (Moses)				Opponent Buzanga, M (Moses)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament D8 Individual 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-03-17	rnd 2	type Standard	result 1
		Opponent Mbonani, S (Sihle)				Opponent Mthethwa, S (Sibongiseni)
2	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Smit, N (Neil)				Opponent Steenkamp, P (Pieter)
3	1	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 4	type Standard	result 1	date 2018-08-25	rnd 4	type Standard	result 1
		Opponent Buzanga, M (Moses)				Opponent Buzanga, M (Moses)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament D8 Individual 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-03-17	rnd 2	type Standard	result 1
		Opponent Mbonani, S (Sihle)				Opponent Mthethwa, S (Sibongiseni)
2	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Smit, N (Neil)				Opponent Steenkamp, P (Pieter)
3	1	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 4	type Standard	result 1	date 2018-08-25	rnd 4	type Standard	result 1
		Opponent Buzanga, M (Moses)				Opponent Buzanga, M (Moses)

No games found.

#	Games	Start				End

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	Mdingi ,X (Xolani)	2	2	425	2	2	425	0	0	0	0	0	0
1	Mdingi ,X (Xolani)	2	500	925	2	500	925	0	0	0	0	0	0
2	Zondo ,LC (Linda Cyril)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Zondo ,LC (Linda Cyril)	2	1298.7	873.7	2	1294.3	873.7	0	0	0	0	0	0
3	Morake ,T (Tebogo)	1	1	425	1	1	425	0	0	0	0	0	0
3	Morake ,T (Tebogo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Nhlapo ,M (Mpho)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Nhlapo ,M (Mpho)	1	1069.7	644.7	1	1064.8	644.7	0	0	0	0	0	0
5	Chibase ,N (Nkosana)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Chibase ,N (Nkosana)	1	1383.7	958.7	1	1379.9	958.7	0	0	0	0	0	0
6	Mthethwa ,S (Sibongiseni)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mthethwa ,S (Sibongiseni)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	De Jongh ,R (Ruben)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	De Jongh ,R (Ruben)	1	1028.7	603.7	1	1028.7	603.7	0	0	0	0	0	0
8	Mbele ,M (Mpumi)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mbele ,M (Mpumi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Bouwer ,JM (Juan Michael)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Bouwer ,JM (Juan Michael)	1	1086	661	1	1086	661	0	0	0	0	0	0
10	Bezuidenhout ,Z (Zander)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bezuidenhout ,Z (Zander)	1	1312.2	887.2	1	1312.2	887.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Heydenrych, JN (Johannes Nicolaas)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms