Chess South Africa Ratings Database

PLAYER PAGE

Personal

Stynder, J (Jowayne)

Chess SA id

1120312892

FIDE id

Date of birth

2012-05-04 (U14)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

14.2

Junior GPX Points

1101.4

Item	Main	Standard	Rapid	Blitz
Rating	1211	1203.1	1220.5	1200
Raw rating	1211	1202.9	1220.5	1200
Weighted rating	1203.2	1203.1	1202.4	1200
Weighted performance	0	0	0	0
Floor	728.8	731.3	720.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.2	165.1	161	165.8
Highest rating	1228.8 2025-03-01	1231.3 2025-03-01	1220.5 2025-09-01	1200 2024-10-01
Highest raw rating	1228.8 2025-03-01	1231.3 2025-03-01	1220.5 2025-09-01	1200 2024-10-01
Highest weighted rating	1228.8 2025-03-01	1231.3 2025-03-01	1200.8 2025-09-01	1200 2024-10-01
Highest weighted performance	1200 2024-10-01	1200 2024-10-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.1	0	0
New rating	1211	1203.2	1220.5	1200
Analysis
Rating	1211	1203.1	1220.5	1200
Raw rating	1211	1202.9	1220.5	1200
Weighted rating	1203.2	1203.1	1202.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	728.8	731.3	720.5	700
Max/Min rating change allowed	163.2	165.1	161	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	1211	1202.9	1220.5	1200
New weighted rating	1203.9	1203.2	1203.9	1200
New weighted performance	0	0	0	0
Temp new rating	1211	1203.2	1220.5	1200
Temp new rating +/-	0	0.1	0	0
Final new rating +/-	0	0.1	0	0
New rating	1211	1203.2	1220.5	1200
New K-factor	36	36	36	36
New floor	728.8	731.3	720.5	700

Item	Main	Standard	Rapid
	0	0	0
	14	9	5
	5	0	5
	0	0	0
	0	0	0
	0	0	0
History	19	9	10

Games since
	Main 19	Standard 9		Rapid 10		Blitz 0
Gender	Male
Age group	U14
Region	Cape Winelands (WCW)
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	14	6.5	46.43	-30.4	1261.7	1231.3
Standard	9	3.5	38.89	-94.4	1299.1	1204.6
Rapid	5	3	60	85	1194.3	1279.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	19	8.5	44.74	-44.7	1257.5	1212.8
Standard	9	3.5	38.89	-94.4	1299.1	1204.6
Rapid	10	5	50	0	1220.2	1220.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1211	1202.9	1220.5	1200
2025-09-01	1211	1202.9	1220.5	1200
2025-08-01	1201.6	1202.9	1199.2	1200
2025-07-01	1201.5	1202.8	1199.2	1200
2025-06-01	1201.5	1202.7	1199.2	1200
2025-05-01	1201.4	1202.6	1199.2	1200
2025-04-01	1201	1201.7	1199.2	1200
2025-03-01	1228.8	1231.3	1199.2	1200
2025-02-01	1198.7	1200	1199	1200
2025-01-01	1195.7	1200	1196.8	1200
2024-12-01	1195.7	1200	1196.8	1200
2024-11-01	1195.7	1200	1196.8	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	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	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	4	0.5	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	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	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	4	0.5	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
4	Worcester Knock-Out 2024 (U13 Boys)	2024-10-19	2024-10-19	Rapid	Cape Winelands (WCW)	6	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent September, M (Morgan)				Opponent Van Der Merwe, Z (Zoe)
2	2	Tournament Worcester Knock-Out 2024				Tournament Worcester Knock-Out 2024
		date 2024-10-19	rnd 4	type Rapid	result 1	date 2024-10-19	rnd 5	type Rapid	result 1
		Opponent Groenewald, C (Carlyle)				Opponent Le Roux, J (Joss)
3	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Steenberg, G (Gewaandre)				Opponent Steenberg, G (Gewaandre)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 0.5	date 2025-03-08	rnd 2	type Standard	result 0.5
		Opponent Saul, S (Shuhaigan)				Opponent Saul, S (Shuhaigan)
2	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Geers, R (Ruben)				Opponent Geers, R (Ruben)
3	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 3	type Standard	result 1
		Opponent Mcgowan, C (Caleb)				Opponent Mcgowan, C (Caleb)

#	Games	Start				End
1	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent September, M (Morgan)				Opponent Van Der Merwe, Z (Zoe)
2	2	Tournament Worcester Knock-Out 2024				Tournament Worcester Knock-Out 2024
		date 2024-10-19	rnd 4	type Rapid	result 1	date 2024-10-19	rnd 5	type Rapid	result 1
		Opponent Groenewald, C (Carlyle)				Opponent Le Roux, J (Joss)
3	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Steenberg, G (Gewaandre)				Opponent Steenberg, G (Gewaandre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent September, M (Morgan)				Opponent Van Der Merwe, Z (Zoe)
2	2	Tournament Worcester Knock-Out 2024				Tournament Worcester Knock-Out 2024
		date 2024-10-19	rnd 4	type Rapid	result 1	date 2024-10-19	rnd 5	type Rapid	result 1
		Opponent Groenewald, C (Carlyle)				Opponent Le Roux, J (Joss)
3	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Steenberg, G (Gewaandre)				Opponent Steenberg, G (Gewaandre)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Geers, R (Ruben)				Opponent Geers, R (Ruben)
2	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 3	type Standard	result 1
		Opponent Mcgowan, C (Caleb)				Opponent Mcgowan, C (Caleb)
3	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Jeftha, B (Bradwin)				Opponent Jeftha, B (Bradwin)

#	Games	Start				End
1	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent September, M (Morgan)				Opponent Van Der Merwe, Z (Zoe)
2	2	Tournament Worcester Knock-Out 2024				Tournament Worcester Knock-Out 2024
		date 2024-10-19	rnd 4	type Rapid	result 1	date 2024-10-19	rnd 5	type Rapid	result 1
		Opponent Groenewald, C (Carlyle)				Opponent Le Roux, J (Joss)
3	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Steenberg, G (Gewaandre)				Opponent Steenberg, G (Gewaandre)

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	Saul ,S (Shuhaigan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Saul ,S (Shuhaigan)	1	1207.7	1207.7	1	1210.7	1207.7	0	0	0	0	0	0
2	Mcgowan ,C (Caleb)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mcgowan ,C (Caleb)	1	1129.2	1554.2	1	1105.1	1554.2	0	0	0	0	0	0
3	Harman ,C (Connor)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Harman ,C (Connor)	1	1379.4	954.4	1	1335.4	954.4	0	0	0	0	0	0
4	Brandt ,C (Cayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Brandt ,C (Cayden)	1	1428	1003	1	1411.2	1003	0	0	0	0	0	0
5	Koert ,D (Dane)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Koert ,D (Dane)	1	1427	1002	1	1420.9	1002	0	0	0	0	0	0
6	Goosen ,J (Jeandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Goosen ,J (Jeandre)	1	1282	857	1	1287.7	857	0	0	0	0	0	0
7	Geers ,R (Ruben)	1	1	425	1	1	425	0	0	0	0	0	0
7	Geers ,R (Ruben)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Jeftha ,B (Bradwin)	1	1	425	1	1	425	0	0	0	0	0	0
8	Jeftha ,B (Bradwin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Cornelius ,L (Laythan)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Cornelius ,L (Laythan)	1	1438.4	1013.4	1	1355.9	1013.4	0	0	0	0	0	0
10	Le Roux ,J (Joss)	1	1	425	0	0	0	1	1	425	0	0	0
10	Le Roux ,J (Joss)	1	1217.4	1642.4	0	0	0	1	1211.6	1642.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Stynder, J (Jowayne)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms