Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonas, SG (Sue-Win Gurshlin)

Chess SA id

106088984

FIDE id

Date of birth

2006-08-23 (U20)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-03-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1386.8	1380	1323.3	1308
Raw rating	1386.8	1380	1323.3	1308
Weighted rating	1386.3	1378	1322.3	1308
Weighted performance	1118.8	1116.8	897.3	0
Floor	930.6	919.8	833.6	808
K-factor	32	32	36	36
Min/Max rating change allowed	127.1	128.3	139.1	142.2
Highest rating	1430.6 2020-02-01	1419.8 2020-02-01	1333.6 2024-02-01	1416.9 2021-08-01
Highest raw rating	1430.6 2020-02-01	1419.8 2020-02-01	1333.6 2024-02-01	1308 2024-02-01
Highest weighted rating	1430.6 2022-03-01	1419.8 2021-12-01	1333.6 2025-03-01	1308 2025-02-01
Highest weighted performance	1419.1 2023-03-01	1402.9 2020-01-01	1212.6 2023-02-01	1416.9 2021-08-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1386.8	1380	1323.3	1308
Analysis
Rating	1386.8	1380	1323.3	1308
Raw rating	1386.8	1380	1323.3	1308
Weighted rating	1386.3	1378	1322.3
Weighted performance	1118.8	1116.8	897.3
K-factor	32	32	36	36
Floor	930.6	919.8	833.6	808
Max/Min rating change allowed	127.1	128.3	139.1	142.2
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	1386.8	1380	1323.3	1308
New weighted rating	1386.5	1378.7	1322.3	1308
New weighted performance	1118.4	1116.3	896.8	0
Temp new rating	1386.8	1380	1323.3	1308
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1386.8	1380	1323.3	1308
New K-factor	32	32	36	36
New floor	930.6	919.8	833.6	808

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	21	16	5	0
	40	25	10	5
	24	20	0	4
	18	0	6	12
History	212	154	37	21

Games since
	Main 21	Standard 16		Rapid 5		Blitz 0
Gender	Male
Age group	U20
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	201	127	63.18	112.1	1218.5	1330.6
Standard	148	92.5	62.5	106.2	1207.4	1313.7
Rapid	32	21.5	67.19	146.1	1170.8	1316.9
Blitz	21	13	61.9	101.2	1369.1	1470.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1386.8	1380	1323.3	1308
2025-09-01	1386.8	1380	1323.3	1308
2025-08-01	1386.8	1380	1323.3	1308
2025-07-01	1386.8	1380	1323.3	1308
2025-06-01	1386.8	1380	1323.3	1308
2025-05-01	1386.8	1380	1323.3	1308
2025-04-01	1386.8	1380	1323.3	1308
2025-03-01	1386.8	1380	1323.3	1308
2025-02-01	1386.8	1380	1323.2	1308
2025-01-01	1386.8	1380	1319.6	1308
2024-12-01	1386.8	1380	1319.6	1308
2024-11-01	1386.8	1380	1319.6	1308
2024-10-01	1386.8	1380	1319.6	1308
2024-09-01	1386.8	1380	1319.6	1308
2024-08-01	1386.8	1380	1319.6	1308
2024-07-01	1386.8	1380	1319.6	1308
2024-06-01	1386.8	1380	1319.6	1308
2024-08-01	1386.8	1380	1319.6	1308
2024-04-01	1386.8	1380	1319.6	1308
2024-03-01	1375.3	1339.7	1319.6	1308
2024-02-01	1377.6	1339.7	1333.6	1308
2024-01-01	1377.6	1339.7	1333.6	1308
2023-12-01	1377.6	1339.7	1333.6	1308
2023-11-01	1377.6	1339.7	1333.6	1308

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	Western Cape Inter Region Cup 2024 (Open)	2024-03-23	2024-03-24	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
2	Western Cape HS Individuals Championship 2024 (U18 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	2.5	Yes	Analysis
3	Overberg High Schools Trails 2024 (U18 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
4	Overberg High Schools Trails 2024 (U18)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
5	Western Cape Top Schools 2023 (U18 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	5	2	Yes	Analysis
6	Overberg Top Schools 2023 (U15+U18)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
7	Western Cape HS Individuals 2023 (U17 Boys)	2023-04-01	2023-04-02	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
8	Overberg High School Closed 2023 (U17 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
9	Western Cape Inter Regional 2023 (Junior Boys)	2023-03-18	2023-03-19	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
10	Western Cape Inter Regional 2023 (Blitz)	2023-03-17	2023-03-17	Blitz	Eden (WEG)	5	5	3	Yes	Analysis
11	Overberg High Schools Trails 2023 (U17)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	5	Yes	Analysis
12	Overberg Schools Open Tournament 2023 (U18)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
13	WCCA Rural Cup 2022 (U18)	2022-08-13	2022-08-14	Standard	Overberg (WOS)	5	4	2	Yes	Analysis
14	Overberg Topskole 2022 (O18)	2022-08-30	2022-08-30	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
15	WCCA Rural Cup Blitz 2022	2022-07-12	2022-07-12	Blitz	Overberg (WOS)	5	4	2	Yes	Analysis
16	Western Cape Schools Chess 2022 (U18 Boys)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	3	Yes	Analysis
17	Western Cape Inter Region Cup 2021 (Junior)	2022-03-04	2022-03-06	Standard	West Coast (WCU)	5	5	1	Yes	Analysis
18	Coast to Coast 2021 (U16)	2021-08-28	2021-08-28	Rapid	West Coast (WCU)	6	6	3.5	Yes	Analysis
19	Coast to Coast 2021 (Blitz)	2021-08-27	2021-08-27	Blitz	West Coast (WCU)	5	5	3	Yes	Analysis
20	Swellendam Blitz 2021 (Seniors)	2021-06-11	2021-06-11	Blitz	Overberg (WOS)	7	7	5	Yes	Analysis
21	Overberg Closed 2020 (U15 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
22	OCF Chess Tournament 2 2020 (Open)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
23	2019 South African Junior Team Championships (U14D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
24	2019 Western Cape Club Championship (C)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
25	Western Cape Top Schools 2019 (U13 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
26	Bontebok 2019 (U14)	2019-09-17	2019-09-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
27	Overberg Top Schools 2019 (U13)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
28	Overberg Club Champs 2019 (B)	2019-06-15	2019-06-15	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
29	Western Cape Schools Individuals 2019 (U13 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
30	Trial 2 Teddy/Toy Tournament 2019 (U14)	2019-04-06	2019-04-06	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
31	Overberg School Chess Close Champs 2019 (U13 Boys)	2019-03-08	2019-03-09	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
32	South African Junior Team Championships 2018 (U14D)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
33	Strategema Robertson 2018 (U13)	2018-09-08	2018-09-08	Rapid	Cape Winelands (WCW)	7	5	3	Yes	Analysis
34	VRT Pitt Open 2018 (U14)	2018-06-02	2018-06-02	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
35	Overberg 3rd Trial 2018 (U12)	2018-05-05	2018-05-05	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
36	Overberg 2nd Trial 2018 (U14)	2018-05-05	2018-05-05	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
37	Overberg Chess 1st Trial 2018 (B)	2018-04-14	2018-04-14	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
38	Overberg Schools Closed 2018 (U13 Boys)	2018-03-23	2018-03-24	Standard	Overberg (WOS)	6	6	2.5	Yes	Analysis

#	Games	Start				End
1	10	Tournament 2019 Western Cape Club Championship				Tournament OCF Chess Tournament 2 2020
		date 2019-10-27	rnd 5	type Standard	result 1	date 2020-02-01	rnd 2	type Standard	result 1
		Opponent Hendricks, L (Lakeisha)				Opponent Higham, E (Ethan)
2	10	Tournament Overberg Club Champs 2019				Tournament Western Cape Top Schools 2019
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-08-31	rnd 2	type Standard	result 1
		Opponent Smith, K (Kayla)				Opponent Blouw, L (Lulamile)
3	8	Tournament Overberg 2nd Trial 2018				Tournament VRT Pitt Open 2018
		date 2018-05-05	rnd 4	type Standard	result 1	date 2018-06-02	rnd 1	type Rapid	result 1
		Opponent De Bruyn, G (Genevieve)				Opponent Fredericks, A (Adiel)

#	Games	Start				End
1	10	Tournament 2019 Western Cape Club Championship				Tournament OCF Chess Tournament 2 2020
		date 2019-10-27	rnd 5	type Standard	result 1	date 2020-02-01	rnd 2	type Standard	result 1
		Opponent Hendricks, L (Lakeisha)				Opponent Higham, E (Ethan)
2	10	Tournament Overberg Club Champs 2019				Tournament Western Cape Top Schools 2019
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-08-31	rnd 2	type Standard	result 1
		Opponent Smith, K (Kayla)				Opponent Blouw, L (Lulamile)
3	10	Tournament Overberg 2nd Trial 2018				Tournament South African Junior Team Championships 2018
		date 2018-05-05	rnd 4	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent De Bruyn, G (Genevieve)				Opponent Mhlongo, V (Vida)

#	Games	Start				End
1	9	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2024
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2024-02-24	rnd 3	type Rapid	result 1
		Opponent Van Niekerk, C (Christiaan)				Opponent Opperman, E (Eldon)
2	4	Tournament Coast to Coast 2021				Tournament Overberg Schools Open Tournament 2023
		date 2021-08-28	rnd 6	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Ellman, A (Anne-Belle)				Opponent Poni, L (Likho)
3	2	Tournament Coast to Coast 2021				Tournament Coast to Coast 2021
		date 2021-08-28	rnd 1	type Rapid	result 1	date 2021-08-28	rnd 2	type Rapid	result 1
		Opponent Kariem, S (Shakir)				Opponent Gabriels, J (Jawon)

#	Games	Start				End
1	5	Tournament Swellendam Blitz 2021				Tournament Swellendam Blitz 2021
		date 2021-06-11	rnd 3	type Blitz	result 1	date 2021-06-11	rnd 7	type Blitz	result 1
		Opponent Jansen, A (Aderique)				Opponent Van Der Vent, L (Lorenzo)
2	3	Tournament WCCA Rural Cup Blitz 2022				Tournament WCCA Rural Cup Blitz 2022
		date 2022-07-12	rnd 2	type Blitz	result 0.5	date 2022-07-12	rnd 4	type Blitz	result 0.5
		Opponent Klaaste, C (Chadley)				Opponent Pick, DD (Deon)
3	3	Tournament Coast to Coast 2021				Tournament Coast to Coast 2021
		date 2021-08-27	rnd 2	type Blitz	result 1	date 2021-08-27	rnd 4	type Blitz	result 1
		Opponent Lusawana, A (Asonele)				Opponent Lewaks, S (Shaundre)

#	Games	Start				End
1	10	Tournament Overberg Club Champs 2019				Tournament Western Cape Top Schools 2019
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-08-31	rnd 2	type Standard	result 1
		Opponent Smith, K (Kayla)				Opponent Blouw, L (Lulamile)
2	8	Tournament 2019 Western Cape Club Championship				Tournament 2019 South African Junior Team Championships
		date 2019-10-27	rnd 5	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Hendricks, L (Lakeisha)				Opponent Odendaal, S (Samuel)
3	8	Tournament Overberg 2nd Trial 2018				Tournament VRT Pitt Open 2018
		date 2018-05-05	rnd 4	type Standard	result 1	date 2018-06-02	rnd 1	type Rapid	result 1
		Opponent De Bruyn, G (Genevieve)				Opponent Fredericks, A (Adiel)

#	Games	Start				End
1	10	Tournament Overberg Club Champs 2019				Tournament Western Cape Top Schools 2019
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-08-31	rnd 2	type Standard	result 1
		Opponent Smith, K (Kayla)				Opponent Blouw, L (Lulamile)
2	10	Tournament Overberg 2nd Trial 2018				Tournament South African Junior Team Championships 2018
		date 2018-05-05	rnd 4	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent De Bruyn, G (Genevieve)				Opponent Mhlongo, V (Vida)
3	8	Tournament 2019 Western Cape Club Championship				Tournament 2019 South African Junior Team Championships
		date 2019-10-27	rnd 5	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Hendricks, L (Lakeisha)				Opponent Odendaal, S (Samuel)

#	Games	Start				End
1	9	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2024
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2024-02-24	rnd 3	type Rapid	result 1
		Opponent Van Niekerk, C (Christiaan)				Opponent Opperman, E (Eldon)
2	4	Tournament Coast to Coast 2021				Tournament Overberg Schools Open Tournament 2023
		date 2021-08-28	rnd 6	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Ellman, A (Anne-Belle)				Opponent Poni, L (Likho)
3	2	Tournament Coast to Coast 2021				Tournament Coast to Coast 2021
		date 2021-08-28	rnd 1	type Rapid	result 1	date 2021-08-28	rnd 2	type Rapid	result 1
		Opponent Kariem, S (Shakir)				Opponent Gabriels, J (Jawon)

#	Games	Start				End
1	5	Tournament Swellendam Blitz 2021				Tournament Swellendam Blitz 2021
		date 2021-06-11	rnd 3	type Blitz	result 1	date 2021-06-11	rnd 7	type Blitz	result 1
		Opponent Jansen, A (Aderique)				Opponent Van Der Vent, L (Lorenzo)
2	3	Tournament Coast to Coast 2021				Tournament Coast to Coast 2021
		date 2021-08-27	rnd 2	type Blitz	result 1	date 2021-08-27	rnd 4	type Blitz	result 1
		Opponent Lusawana, A (Asonele)				Opponent Lewaks, S (Shaundre)
3	2	Tournament Western Cape Inter Regional 2023				Tournament Western Cape Inter Regional 2023
		date 2023-03-17	rnd 4	type Blitz	result 1	date 2023-03-17	rnd 5	type Blitz	result 1
		Opponent Siebritz, Y (Yul)				Opponent Lewaks, S (Shaundre)

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	Pekeur ,W (Warren)	5	4.5	340	5	4.5	340	0	0	0	0	0	0
1	Pekeur ,W (Warren)	5	1218.6	1558.6	5	1190.5	1558.6	0	0	0	0	0	0
2	Opperman ,E (Eldon)	5	4	255	4	3	212.5	1	1	425	0	0	0
2	Opperman ,E (Eldon)	5	1059	1314	4	1013.6	1271.5	1	949.2	1484	0	0	0
3	Fradie ,C (Charlize)	4	4	425	3	3	425	1	1	425	0	0	0
3	Fradie ,C (Charlize)	4	1028.1	1453.1	3	999.9	1453.1	1	1200	1453.1	0	0	0
4	Davids ,R (Rafael)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Davids ,R (Rafael)	3	1405.3	1263.6	3	1380.1	1263.6	0	0	0	0	0	0
5	Liebenberg ,D (Dewald)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
5	Liebenberg ,D (Dewald)	3	1149.2	1432.5	3	1136	1432.5	0	0	0	0	0	0
6	Valentine ,K (Kirstin)	3	1.5	0	2	0.5	-212.5	1	1	425	0	0	0
6	Valentine ,K (Kirstin)	3	890.5	890.5	2	791.3	678	1	831.6	1315.5	0	0	0
7	Poni ,L (Likho)	3	1	-141.7	1	0	-425	2	1	0	0	0	0
7	Poni ,L (Likho)	3	1145.3	1003.6	1	1200	720.3	2	1189.4	1145.3	0	0	0
8	Gabriels ,J (Jawon)	3	1	-141.7	1	0	-425	2	1	0	0	0	0
8	Gabriels ,J (Jawon)	3	1278.8	1137.1	1	1090	853.8	2	1240	1278.8	0	0	0
9	Lewaks ,S (Shaundre)	3	2	141.7	1	0	-425	0	0	0	2	2	425
9	Lewaks ,S (Shaundre)	3	1496.3	1638	1	1438.9	1071.3	0	0	0	2	1208.1	1921.3
10	Njokweni ,L (Llyabona)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Njokweni ,L (Llyabona)	2	1502.1	1077.1	2	1543.6	1077.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Jonas, SG (Sue-Win Gurshlin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms