Chess South Africa Ratings Database

PLAYER PAGE

Personal

Gosha, W (William)

Chess SA id

1820157207

FIDE id

Date of birth

1982-07-21 (Adult)

Gender

Male

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1569.2	1531.3	1315.5	1200
Raw rating	1569.2	1531.3	1315.5	1200
Weighted rating	1454	1417.4	1286.6	1200
Weighted performance	1484.2	1476.4	0	0
Floor	1089.5	1036.7	815.5	700
K-factor	32	32	36	36
Min/Max rating change allowed	98	103.4	140.7	165.8
Highest rating	1589.5 2025-04-01	1537.8 2024-03-01	1379.8 2023-06-01	1200 2018-10-01
Highest raw rating	1589.5 2025-04-01	1536.7 2025-08-01	1315.5 2025-02-01	1200 2024-02-01
Highest weighted rating	1454 2025-09-30	1417.4 2025-09-30	1278.6 2025-08-01	1200 2018-10-01
Highest weighted performance	1589.5 2025-04-01	1537.8 2024-03-01	1379.8 2023-06-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1569.2	1531.3	1315.5	1200
Analysis
Rating	1569.2	1531.3	1315.5	1200
Raw rating	1569.2	1531.3	1315.5	1200
Weighted rating	1454	1417.4	1286.6
Weighted performance	1484.2	1476.4	0
K-factor	32	32	36	36
Floor	1089.5	1036.7	815.5	700
Max/Min rating change allowed	98	103.4	140.7	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	1569.2	1531.3	1315.5	1200
New weighted rating	1469	1431.7	1290.2	1200
New weighted performance	1483.7	1475.9	0	0
Temp new rating	1569.2	1531.3	1315.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1569.2	1531.3	1315.5	1200
New K-factor	32	32	36	36
New floor	1089.5	1036.7	815.5	700

Item	Main	Standard	Rapid
	0	0	0
	37	33	4
	14	14	0
	6	0	6
	0	0	0
	0	0	0
History	57	47	10

Games since
	Main 51	Standard 47		Rapid 4		Blitz 0
Gender	Male
Age group	Adult
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	800		93		15
Male	715		85		15
Adult	318		25		5
Adult Male	301		24		5
Standard
	RSA		Province		Region
Overall	961		115		20
Male	838		103		19
Adult	326		23		4
Adult Male	308		22		4
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	37	25	67.57	149.3	1436.2	1585.5
Standard	33	22	66.67	141.7	1428.9	1570.6
Rapid	4	3	75	212.5	1496.5	1709
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	57	37.5	65.79	134.2	1402.2	1536.4
Standard	47	30.5	64.89	126.6	1411.1	1537.7
Rapid	10	7	70	170	1360.4	1530.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1569.2	1531.3	1315.5	1200
2025-09-01	1574.9	1536.7	1315.5	1200
2025-08-01	1574.9	1536.7	1315.5	1200
2025-07-01	1567.4	1518.8	1315.5	1200
2025-06-01	1567.4	1518.8	1315.5	1200
2025-05-01	1567.4	1518.8	1315.5	1200
2025-04-01	1589.5	1536	1315.5	1200
2025-03-01	1539.9	1408	1315.5	1200
2025-02-01	1408.8	1327.5	1315.5	1200
2025-01-01	1329.9	1327.5	1243.2	1200
2024-12-01	1329.9	1327.5	1243.2	1200
2024-11-01	1329.9	1327.5	1243.2	1200
2024-10-01	1329.9	1327.5	1243.2	1200
2024-09-01	1329.9	1327.5	1243.2	1200
2024-08-01	1329.9	1327.5	1243.2	1200
2024-07-01	1250.1	1234.6	1243.2	1200
2024-06-01	1282.2	1270.6	1243.2	1200
2024-08-01	1282.2	1270.6	1243.2	1200
2024-04-01	1282.2	1270.6	1243.2	1200
2024-03-01	1225	1200	1243.2	1200
2024-02-01	1225	1200	1243.2	1200
2024-01-01	1225	1200	1243.2	1200
2023-12-01	1225	1200	1243.2	1200
2023-11-01	1225	1200	1243.2	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	EC Closed 2025 (Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
2	Eastern Cape Inter-Regional Individual Chess Championship 2025 (Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	5	2	Yes	Analysis
3	SBDCA Closed 2025 (Open)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	5	0	0	No	Analysis
4	SBDCU Trial 9 2025 (U20+Open)	2025-04-26	2025-04-26	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
5	SBDCU Trial 6 2025 (U20+Open)	2025-03-15	2025-03-15	Standard	Sarah Baartman (ESB)	5	5	3.5	Yes	Analysis
6	Rhodes Open 2025 (A)	2025-03-21	2025-03-22	Standard	Sarah Baartman (ESB)	7	7	4.5	Yes	Analysis
7	SBDCU Trials 5 Makhanda Leg 2025 (U20+Open)	2025-02-22	2025-02-22	Standard	Sarah Baartman (ESB)	5	5	5	Yes	Analysis
8	SBD Activation Tournament 2025 (Open)	2025-01-04	2025-01-04	Rapid	Sarah Baartman (ESB)	5	4	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
2	Eastern Cape Inter-Regional Individual Chess Championship 2025 (Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	5	2	Yes	Analysis
3	SBDCA Closed 2025 (Open)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	5	0	0	No	Analysis
4	SBDCU Trial 9 2025 (U20+Open)	2025-04-26	2025-04-26	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
5	SBDCU Trial 6 2025 (U20+Open)	2025-03-15	2025-03-15	Standard	Sarah Baartman (ESB)	5	5	3.5	Yes	Analysis
6	Rhodes Open 2025 (A)	2025-03-21	2025-03-22	Standard	Sarah Baartman (ESB)	7	7	4.5	Yes	Analysis
7	SBDCU Trials 5 Makhanda Leg 2025 (U20+Open)	2025-02-22	2025-02-22	Standard	Sarah Baartman (ESB)	5	5	5	Yes	Analysis
8	SBD Activation Tournament 2025 (Open)	2025-01-04	2025-01-04	Rapid	Sarah Baartman (ESB)	5	4	3	Yes	Analysis
9	SBDCU Closed Trials 2024 (Open)	2024-07-27	2024-07-27	Standard	Sarah Baartman (ESB)	5	5	3.5	Yes	Analysis
10	SBDCU Trial 3 2024 (Open)	2024-06-01	2024-06-01	Standard	Sarah Baartman (ESB)	5	4	1	Yes	Analysis
11	SBDCU Trial 2 2024 (Open)	2024-03-23	2024-03-23	Standard	Sarah Baartman (ESB)	5	5	4	Yes	Analysis
12	Makhanda Youth Day Chess Tournament 2023 (A)	2023-06-17	2023-06-17	Rapid	Sarah Baartman (ESB)	6	6	4	Yes	Analysis

#	Games	Start				End
1	7	Tournament SBD Activation Tournament 2025				Tournament SBDCU Trials 5 Makhanda Leg 2025
		date 2025-01-04	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Martin, AJ (Andrew John)				Opponent Murambiwa, W (Wellington)
2	6	Tournament SBDCU Trial 6 2025				Tournament Rhodes Open 2025
		date 2025-03-15	rnd 2	type Standard	result 1	date 2025-03-21	rnd 2	type Standard	result 1
		Opponent Groves, G (George)				Opponent Doubell, J (Jared)
3	5	Tournament Makhanda Youth Day Chess Tournament 2023				Tournament Makhanda Youth Day Chess Tournament 2023
		date 2023-06-17	rnd 1	type Rapid	result 0.5	date 2023-06-17	rnd 5	type Rapid	result 1
		Opponent Sange, M (Mcoseli)				Opponent Tywakadi, S (Similo)

#	Games	Start				End
1	7	Tournament SBDCU Closed Trials 2024				Tournament SBDCU Trials 5 Makhanda Leg 2025
		date 2024-07-27	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Von Berg, HJ (Heinrich)				Opponent Murambiwa, W (Wellington)
2	6	Tournament SBDCU Trial 6 2025				Tournament Rhodes Open 2025
		date 2025-03-15	rnd 2	type Standard	result 1	date 2025-03-21	rnd 2	type Standard	result 1
		Opponent Groves, G (George)				Opponent Doubell, J (Jared)
3	3	Tournament SBDCU Trial 9 2025				Tournament SBDCU Trial 9 2025
		date 2025-04-26	rnd 1	type Standard	result 1	date 2025-04-26	rnd 3	type Standard	result 1
		Opponent Shordries, N (Nkiyasi)				Opponent Manana, L (Lubusiso)

#	Games	Start				End
1	5	Tournament Makhanda Youth Day Chess Tournament 2023				Tournament Makhanda Youth Day Chess Tournament 2023
		date 2023-06-17	rnd 1	type Rapid	result 0.5	date 2023-06-17	rnd 5	type Rapid	result 1
		Opponent Sange, M (Mcoseli)				Opponent Tywakadi, S (Similo)
2	2	Tournament SBD Activation Tournament 2025				Tournament SBD Activation Tournament 2025
		date 2025-01-04	rnd 4	type Rapid	result 1	date 2025-01-04	rnd 5	type Rapid	result 1
		Opponent Martin, AJ (Andrew John)				Opponent April, DMG (David Marc Ghadafi)
3	1	Tournament SBD Activation Tournament 2025				Tournament SBD Activation Tournament 2025
		date 2025-01-04	rnd 2	type Rapid	result 1	date 2025-01-04	rnd 2	type Rapid	result 1
		Opponent Mahlaza, A (Akhona)				Opponent Mahlaza, A (Akhona)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament SBD Activation Tournament 2025				Tournament SBDCU Trials 5 Makhanda Leg 2025
		date 2025-01-04	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Martin, AJ (Andrew John)				Opponent Murambiwa, W (Wellington)
2	3	Tournament SBDCU Trial 9 2025				Tournament SBDCU Trial 9 2025
		date 2025-04-26	rnd 1	type Standard	result 1	date 2025-04-26	rnd 3	type Standard	result 1
		Opponent Shordries, N (Nkiyasi)				Opponent Manana, L (Lubusiso)
3	3	Tournament SBDCU Trial 6 2025				Tournament SBDCU Trial 6 2025
		date 2025-03-15	rnd 2	type Standard	result 1	date 2025-03-15	rnd 4	type Standard	result 1
		Opponent Groves, G (George)				Opponent Martin, AJ (Andrew John)

#	Games	Start				End
1	5	Tournament SBDCU Trials 5 Makhanda Leg 2025				Tournament SBDCU Trials 5 Makhanda Leg 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Manana, L (Lubusiso)				Opponent Murambiwa, W (Wellington)
2	3	Tournament SBDCU Trial 9 2025				Tournament SBDCU Trial 9 2025
		date 2025-04-26	rnd 1	type Standard	result 1	date 2025-04-26	rnd 3	type Standard	result 1
		Opponent Shordries, N (Nkiyasi)				Opponent Manana, L (Lubusiso)
3	3	Tournament SBDCU Trial 6 2025				Tournament SBDCU Trial 6 2025
		date 2025-03-15	rnd 2	type Standard	result 1	date 2025-03-15	rnd 4	type Standard	result 1
		Opponent Groves, G (George)				Opponent Martin, AJ (Andrew John)

#	Games	Start				End
1	3	Tournament Makhanda Youth Day Chess Tournament 2023				Tournament Makhanda Youth Day Chess Tournament 2023
		date 2023-06-17	rnd 3	type Rapid	result 1	date 2023-06-17	rnd 5	type Rapid	result 1
		Opponent Ndamase, V (Viwe)				Opponent Tywakadi, S (Similo)
2	2	Tournament SBD Activation Tournament 2025				Tournament SBD Activation Tournament 2025
		date 2025-01-04	rnd 4	type Rapid	result 1	date 2025-01-04	rnd 5	type Rapid	result 1
		Opponent Martin, AJ (Andrew John)				Opponent April, DMG (David Marc Ghadafi)
3	1	Tournament SBD Activation Tournament 2025				Tournament SBD Activation Tournament 2025
		date 2025-01-04	rnd 2	type Rapid	result 1	date 2025-01-04	rnd 2	type Rapid	result 1
		Opponent Mahlaza, A (Akhona)				Opponent Mahlaza, A (Akhona)

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	Tshozi ,I (Inga)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Tshozi ,I (Inga)	3	1382.7	1241.1	3	1380.4	1241.1	0	0	0	0	0	0
2	Moshoeshoe ,M (Maletapata)	3	2.5	283.3	2	2	425	1	0.5	0	0	0	0
2	Moshoeshoe ,M (Maletapata)	3	1287.4	1570.7	2	1300.6	1712.4	1	1046.8	1287.4	0	0	0
3	Shordries ,N (Nkiyasi)	2	2	425	2	2	425	0	0	0	0	0	0
3	Shordries ,N (Nkiyasi)	2	1293.6	1718.6	2	1258.9	1718.6	0	0	0	0	0	0
4	Krieger ,CR (Charles Richard)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Krieger ,CR (Charles Richard)	2	1511.7	1086.7	2	1487.2	1086.7	0	0	0	0	0	0
5	Mafanya ,K (Kulasande)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Mafanya ,K (Kulasande)	2	1851.7	1426.7	2	1851.6	1426.7	0	0	0	0	0	0
6	Manana ,L (Lubusiso)	2	2	425	2	2	425	0	0	0	0	0	0
6	Manana ,L (Lubusiso)	2	1368.6	1793.6	2	1300.1	1793.6	0	0	0	0	0	0
7	Diamond ,L (Lisakhanya)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Diamond ,L (Lisakhanya)	2	1215.7	1428.2	2	1183.4	1428.2	0	0	0	0	0	0
8	April ,DMG (David Marc Ghadafi)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
8	April ,DMG (David Marc Ghadafi)	2	1544.8	1757.2	1	1544.7	1544.8	1	1358.8	1969.8	0	0	0
9	Martin ,AJ (Andrew John)	2	2	425	1	1	425	1	1	425	0	0	0
9	Martin ,AJ (Andrew John)	2	1534.6	1959.6	1	1528.7	1959.6	1	1599.2	1959.6	0	0	0
10	Groves ,G (George)	1	1	425	1	1	425	0	0	0	0	0	0
10	Groves ,G (George)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Gosha, W (William)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms