Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzee, JH (Justin)

Chess SA id

186005207

FIDE id

Date of birth

1986-10-14 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-03-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1321.6	1343	1300	1300
Raw rating	1321.6	1343	1300	1300
Weighted rating	1321.2	1342.6	1299	1299
Weighted performance	0	0	0	0
Floor	821.6	843	800	800
K-factor	36	36	36	36
Min/Max rating change allowed	139.4	135.3	143.8	143.8
Highest rating	1517.2 2018-03-01	1522.7 2018-03-01	1300 2024-02-01	1300 2024-02-01
Highest raw rating	1321.6 2024-02-01	1343 2024-02-01	1300 2024-02-01	1300 2024-02-01
Highest weighted rating	1320.3 2025-08-01	1341.6 2025-08-01	1296.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1517.2 2018-03-01	1522.7 2018-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1321.6	1343	1300	1300
Analysis
Rating	1321.6	1343	1300	1300
Raw rating	1321.6	1343	1300	1300
Weighted rating	1321.2	1342.6	1299
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	821.6	843	800	800
Max/Min rating change allowed	139.4	135.3	143.8	143.8
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	1321.6	1343	1300	1300
New weighted rating	1321.5	1342.9	1299.7	1299.7
New weighted performance	0	0	0	0
Temp new rating	1321.6	1343	1300	1300
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1321.6	1343	1300	1300
New K-factor	36	36	36	36
New floor	821.6	843	800	800

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	12	12

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Mangaung (FMB)
Province	Free State (FS)
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	7	5.5	78.57	242.9	1265.5	1508.4
Standard	7	5.5	78.57	242.9	1265.5	1508.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1321.6	1343	1300	1300
2025-09-01	1321.6	1343	1300	1300
2025-08-01	1321.6	1343	1300	1300
2025-07-01	1321.6	1343	1300	1300
2025-06-01	1321.6	1343	1300	1300
2025-05-01	1321.6	1343	1300	1300
2025-04-01	1321.6	1343	1300	1300
2025-03-01	1321.6	1343	1300	1300
2025-02-01	1321.6	1343	1300	1300
2025-01-01	1321.6	1343	1300	1300
2024-12-01	1321.6	1343	1300	1300
2024-11-01	1321.6	1343	1300	1300
2024-10-01	1321.6	1343	1300	1300
2024-09-01	1321.6	1343	1300	1300
2024-08-01	1321.6	1343	1300	1300
2024-07-01	1321.6	1343	1300	1300
2024-06-01	1321.6	1343	1300	1300
2024-08-01	1321.6	1343	1300	1300
2024-04-01	1321.6	1343	1300	1300
2024-03-01	1321.6	1343	1300	1300
2024-02-01	1321.6	1343	1300	1300
2024-01-01	1321.6	1343	1300	1300
2023-12-01	1283	1301.2	1200	1200
2023-11-01	1283	1301.2	1200	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	2018 Boardwalk Pearson Open (B)	2018-03-17	2018-03-18	Standard	Nelson Mandela Bay (ENM)	7	7	5.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Govindsamy, M (Matthew)				Opponent Gouws, KM (Karla)
2	2	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-18	rnd 6	type Standard	result 1	date 2018-03-18	rnd 7	type Standard	result 0.5
		Opponent Deang, A (Alman)				Opponent Scheepers, J (Jonathan)

#	Games	Start				End
1	4	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Govindsamy, M (Matthew)				Opponent Gouws, KM (Karla)
2	2	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-18	rnd 6	type Standard	result 1	date 2018-03-18	rnd 7	type Standard	result 0.5
		Opponent Deang, A (Alman)				Opponent Scheepers, J (Jonathan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Govindsamy, M (Matthew)				Opponent Gouws, KM (Karla)
2	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-18	rnd 6	type Standard	result 1	date 2018-03-18	rnd 6	type Standard	result 1
		Opponent Deang, A (Alman)				Opponent Deang, A (Alman)

#	Games	Start				End
1	4	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Govindsamy, M (Matthew)				Opponent Gouws, KM (Karla)
2	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-18	rnd 6	type Standard	result 1	date 2018-03-18	rnd 6	type Standard	result 1
		Opponent Deang, A (Alman)				Opponent Deang, A (Alman)

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	Gouws ,KM (Karla Maritsa)	1	1	425	1	1	425	0	0	0	0	0	0
1	Gouws ,KM (Karla Maritsa)	1	1156.5	1581.5	1	1157.8	1581.5	0	0	0	0	0	0
2	Govindsamy ,M (Matthew)	1	1	425	1	1	425	0	0	0	0	0	0
2	Govindsamy ,M (Matthew)	1	1260.2	1685.2	1	1257	1685.2	0	0	0	0	0	0
3	Scheepers ,J (Jonathan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Scheepers ,J (Jonathan)	1	1241.1	1241.1	1	1240	1241.1	0	0	0	0	0	0
4	Kettledas ,JT (Joshua Thando)	1	1	425	1	1	425	0	0	0	0	0	0
4	Kettledas ,JT (Joshua Thando)	1	1275	1700	1	1278	1700	0	0	0	0	0	0
5	Deang ,A (Alman)	1	1	425	1	1	425	0	0	0	0	0	0
5	Deang ,A (Alman)	1	1253.3	1678.3	1	1248.8	1678.3	0	0	0	0	0	0
6	Peter ,N (Noah)	1	1	425	1	1	425	0	0	0	0	0	0
6	Peter ,N (Noah)	1	1137.6	1562.6	1	1181.1	1562.6	0	0	0	0	0	0
7	Hobson ,LA (Lance Angelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Hobson ,LA (Lance Angelo)	1	1534.9	1109.9	1	1534.9	1109.9	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

Coetzee, JH (Justin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms