Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzee, J (Jowayne)

Chess SA id

1110305458

FIDE id

Date of birth

2011-09-21 (U16)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1202.6	1200	1205.6	1200
Raw rating	1202.6	1200	1205.6	1200
Weighted rating	1188.7	1200	1178.9	1200
Weighted performance	0	0	0	0
Floor	702.6	700	705.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	165.2	165.8	164.5	165.8
Highest rating	1202.6 2025-09-30	1200 2024-05-01	1205.6 2025-09-30	1200 2024-05-01
Highest raw rating	1202.6 2025-09-30	1200 2024-05-01	1205.6 2025-09-30	1200 2024-05-01
Highest weighted rating	1200 2024-05-01	1200 2024-05-01	1200 2024-05-01	1200 2024-05-01
Highest weighted performance	1200 2024-12-01	1200 2024-05-01	1200 2024-12-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1202.6	1200	1205.6	1200
Analysis
Rating	1202.6	1200	1205.6	1200
Raw rating	1202.6	1200	1205.6	1200
Weighted rating	1188.7	1200	1178.9
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	702.6	700	705.6	700
Max/Min rating change allowed	165.2	165.8	164.5	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	1202.6	1200	1205.6	1200
New weighted rating	1189.7	1200	1180.8	1200
New weighted performance	0	0	0	0
Temp new rating	1202.6	1200	1205.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1202.6	1200	1205.6	1200
New K-factor	36	36	36	36
New floor	702.6	700	705.6	700

Item	Main	Rapid
	0	0
	5	5
	6	6
	0	0
	0	0
	0	0
History	11	11

Games since
	Main 11	Standard 0		Rapid 11		Blitz 0
Gender	Male
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	5	3	60	85	1210.9	1295.9
Standard	0	0	0	0	0	0
Rapid	5	3	60	85	1210.9	1295.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	5	45.45	-38.6	1219.4	1180.7
Standard	0	0	0	0	0	0
Rapid	11	5	45.45	-38.6	1219.4	1180.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1202.6	1200	1205.6	1200
2025-09-01	1189	1200	1179.3	1200
2025-08-01	1189	1200	1179.3	1200
2025-07-01	1189	1200	1179.3	1200
2025-06-01	1189	1200	1179.3	1200
2025-05-01	1189	1200	1179.3	1200
2025-04-01	1189	1200	1179.3	1200
2025-03-01	1189	1200	1179.3	1200
2025-02-01	1188.8	1200	1178.9	1200
2025-01-01	1181.3	1200	1164.8	1200
2024-12-01	1181.3	1200	1164.8	1200
2024-11-01	1181.3	1200	1164.8	1200
2024-10-01	1181.3	1200	1164.8	1200
2024-09-01	1181.3	1200	1164.8	1200
2024-08-01	1181.3	1200	1164.8	1200
2024-07-01	1181.3	1200	1164.8	1200
2024-06-01	1181.3	1200	1164.8	1200
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	Rhenish Primary 2025 (U14+Over)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rhenish Primary 2025 (U14+Over)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Rhenish PS Tournament 2024 (U14)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Rhenish Primary 2025				Tournament Rhenish Primary 2025
		date 2025-09-20	rnd 3	type Rapid	result 1	date 2025-09-20	rnd 4	type Rapid	result 1
		Opponent Mkandawire, N (Naomi)				Opponent Makone, E (Ethan)
2	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish Primary 2025
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Mansakala, A (Abigail)				Opponent Zimri, L (Lyle)
3	1	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Mbambalala, A (Asithandile)				Opponent Mbambalala, A (Asithandile)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rhenish Primary 2025				Tournament Rhenish Primary 2025
		date 2025-09-20	rnd 3	type Rapid	result 1	date 2025-09-20	rnd 4	type Rapid	result 1
		Opponent Mkandawire, N (Naomi)				Opponent Makone, E (Ethan)
2	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish Primary 2025
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Mansakala, A (Abigail)				Opponent Zimri, L (Lyle)
3	1	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Mbambalala, A (Asithandile)				Opponent Mbambalala, A (Asithandile)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rhenish Primary 2025				Tournament Rhenish Primary 2025
		date 2025-09-20	rnd 3	type Rapid	result 1	date 2025-09-20	rnd 4	type Rapid	result 1
		Opponent Mkandawire, N (Naomi)				Opponent Makone, E (Ethan)
2	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish Primary 2025
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Mansakala, A (Abigail)				Opponent Zimri, L (Lyle)
3	1	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Mbambalala, A (Asithandile)				Opponent Mbambalala, A (Asithandile)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rhenish Primary 2025				Tournament Rhenish Primary 2025
		date 2025-09-20	rnd 3	type Rapid	result 1	date 2025-09-20	rnd 4	type Rapid	result 1
		Opponent Mkandawire, N (Naomi)				Opponent Makone, E (Ethan)
2	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish Primary 2025
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Mansakala, A (Abigail)				Opponent Zimri, L (Lyle)
3	1	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2024-05-11	rnd 2	type Rapid	result 1
		Opponent Mbambalala, A (Asithandile)				Opponent Mbambalala, A (Asithandile)

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	Geraghty ,P (Patrick)	1	0	-425	0	0	0	1	0	-425	0	0	0
1	Geraghty ,P (Patrick)	1	1200	775	0	0	0	1	1200	775	0	0	0
2	Kwabe ,A (Awonke)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Kwabe ,A (Awonke)	1	1331.6	906.6	0	0	0	1	1260.2	906.6	0	0	0
3	Zimri ,L (Lyle)	1	1	425	0	0	0	1	1	425	0	0	0
3	Zimri ,L (Lyle)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
4	Snaith ,A (Alessandro)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Snaith ,A (Alessandro)	1	1200	775	0	0	0	1	1200	775	0	0	0
5	Mansakala ,A (Abigail)	1	1	425	0	0	0	1	1	425	0	0	0
5	Mansakala ,A (Abigail)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Crabbia ,M (Mattia)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Crabbia ,M (Mattia)	1	1223.8	798.8	0	0	0	1	1229.7	798.8	0	0	0
7	Mbambalala ,A (Asithandile)	1	1	425	0	0	0	1	1	425	0	0	0
7	Mbambalala ,A (Asithandile)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	De Wet ,E (Emile)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	De Wet ,E (Emile)	1	1226.5	801.5	0	0	0	1	1239.6	801.5	0	0	0
9	Mkandawire ,N (Naomi)	1	1	425	0	0	0	1	1	425	0	0	0
9	Mkandawire ,N (Naomi)	1	1198	1623	0	0	0	1	1197.1	1623	0	0	0
10	Makone ,E (Ethan)	1	1	425	0	0	0	1	1	425	0	0	0
10	Makone ,E (Ethan)	1	1232.9	1657.9	0	0	0	1	1227.4	1657.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Coetzee, J (Jowayne)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms