Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jack, S (Siyamthanda)

Chess SA id

206081102

FIDE id

Date of birth

2006-06-21 (U20)

Gender

Female

Region

King Cetshwayo (KUR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-05-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1142.3	1107.3	635	500
Raw rating	1142.3	1107.3	635	500
Weighted rating	1140.1	1104.9	635	500
Weighted performance	819.8	736	0	0
Floor	642.3	607.3	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	180	189.2	370.8	449.5
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2019-12-01	1200 2024-03-01
Highest raw rating	1142.3 2024-06-01	1107.3 2024-06-01	635 2024-03-01	500 2024-03-01
Highest weighted rating	1142.3 2024-11-01	1107.3 2024-11-01	635 2024-11-01	500 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1142.3	1107.3	635	500
Analysis
Rating	1142.3	1107.3	635	500
Raw rating	1142.3	1107.3	635	500
Weighted rating	1140.1	1104.9	635
Weighted performance	819.8	736	0
K-factor	40	40	40	40
Floor	642.3	607.3	500	500
Max/Min rating change allowed	180	189.2	370.8	449.5
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	1142.3	1107.3	635	500
New weighted rating	1140.9	1105.7	635	500
New weighted performance	813.1	729.5	0	0
Temp new rating	1142.3	1107.3	635	500
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1142.3	1107.3	635	500
New K-factor	40	40	40	40
New floor	642.3	607.3	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	8	8	0
	25	20	5
	14	14	0
	0	0	0
History	95	90	5

Games since
	Main 8	Standard 8		Rapid 0		Blitz 0
Gender	Female
Age group	U20
Region	King Cetshwayo (KUR)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-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	67	28.5	42.54	-63.4	1140.7	1077.3
Standard	62	25.5	41.13	-75.4	1131.1	1055.7
Rapid	5	3	60	85	1260.5	1345.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1142.3	1107.3	635	500
2025-09-30	1142.3	1107.3	635	500
2025-09-01	1142.3	1107.3	635	500
2025-08-01	1142.3	1107.3	635	500
2025-07-01	1142.3	1107.3	635	500
2025-06-01	1142.3	1107.3	635	500
2025-05-01	1142.3	1107.3	635	500
2025-04-01	1142.3	1107.3	635	500
2025-03-01	1142.3	1107.3	635	500
2025-02-01	1142.3	1107.3	635	500
2025-01-01	1142.3	1107.3	635	500
2024-12-01	1142.3	1107.3	635	500
2024-11-01	1142.3	1107.3	635	500
2024-10-01	1142.3	1107.3	635	500
2024-09-01	1142.3	1107.3	635	500
2024-08-01	1142.3	1107.3	635	500
2024-07-01	1142.3	1107.3	635	500
2024-09-01	1142.3	1107.3	635	500
2024-05-01	1119.5	1081.7	635	500
2024-04-01	1119.5	1081.7	635	500
2024-03-01	1119.5	1081.7	635	500
2024-02-01	1089.3	1048.9	635	500
2024-01-01	1089.3	1048.9	635	500
2023-12-01	1089.3	1048.9	613.6	500

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	2024 Umlalazi Chess Tournament (Open)	2024-07-27	2024-07-27	Standard	King Cetshwayo (KUR)	5	0	0	No	Analysis
2	2024 Umfolozi Chess Tournament (U18-Adult)	2024-05-18	2024-05-18	Standard	King Cetshwayo (KUR)	7	4	2	Yes	Analysis
3	2024 King Cetshwayo Chess Open (A)	2024-02-17	2024-02-18	Standard	King Cetshwayo (KUR)	7	4	2	Yes	Analysis
4	2023 King Cetswayo SALGA Elimination (U20 Girls)	2023-10-14	2023-10-14	Rapid	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
5	2023 King Cetshwayo Winter Open (Open)	2023-07-29	2023-07-30	Standard	King Cetshwayo (KUR)	7	7	3	Yes	Analysis
6	2023 King Cetshwayo Chess Anniversary (Open)	2023-04-22	2023-04-23	Standard	King Cetshwayo (KUR)	7	6	2	Yes	Analysis
7	2023 Imperial City Campus KC Open (Open)	2023-02-18	2023-02-19	Standard	King Cetshwayo (KUR)	7	7	3	Yes	Analysis
8	2022 King Cetshwayo Anniversary (U18-Adult)	2022-03-12	2022-03-13	Standard	King Cetshwayo (KUR)	7	7	2.5	Yes	Analysis
9	2022 King Cetshwayo Open (U18+U20)	2022-02-19	2022-02-20	Standard	King Cetshwayo (KUR)	7	7	3.5	Yes	Analysis
10	2020 King Cetshwayo Anniversary (U16)	2020-03-14	2020-03-15	Standard	King Cetshwayo (KUR)	7	6	1	Yes	Analysis
11	2018 King Cetshwayo Anniversary (B)	2018-03-17	2018-03-18	Standard	King Cetshwayo (KUR)	7	7	3.5	Yes	Analysis
12	2018 King Cetshwayo Summer (U14)	2018-02-17	2018-02-18	Standard	King Cetshwayo (KUR)	7	7	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2024 King Cetshwayo Chess Open
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Dlamini, S (Sinenhlanhla)				Opponent Sabela, M (Mihla)
2	2	Tournament 2024 King Cetshwayo Chess Open				Tournament 2024 Umfolozi Chess Tournament
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-05-17	rnd 1	type Standard	result 1
		Opponent Dlamini, A (Ayema)				Opponent Sabela, M (Mihla)
3	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 4	type Standard	result 1	date 2023-07-30	rnd 5	type Standard	result 1
		Opponent Ndwandwe, S (Siyanda)				Opponent Dlamini, Z (Zamangwane)

#	Games	Start				End
1	2	Tournament 2024 King Cetshwayo Chess Open				Tournament 2024 Umfolozi Chess Tournament
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-05-17	rnd 1	type Standard	result 1
		Opponent Dlamini, A (Ayema)				Opponent Sabela, M (Mihla)
2	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 4	type Standard	result 1	date 2023-07-30	rnd 5	type Standard	result 1
		Opponent Ndwandwe, S (Siyanda)				Opponent Dlamini, Z (Zamangwane)
3	2	Tournament 2023 King Cetshwayo Chess Anniversary				Tournament 2023 King Cetshwayo Chess Anniversary
		date 2023-04-22	rnd 3	type Standard	result 1	date 2023-04-22	rnd 4	type Standard	result 1
		Opponent Mngadi, A (Andile)				Opponent Khumalo, N (Nokwanda)

#	Games	Start				End
1	2	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2023 King Cetswayo SALGA Elimination
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2023-10-14	rnd 5	type Rapid	result 1
		Opponent Dlamini, S (Sinenhlanhla)				Opponent Dludla, S (Sphelele)
2	1	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2023 King Cetswayo SALGA Elimination
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2023-10-14	rnd 2	type Rapid	result 1
		Opponent Mnguni, A (Andiswa)				Opponent Mnguni, A (Andiswa)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2024 King Cetshwayo Chess Open
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Dlamini, S (Sinenhlanhla)				Opponent Sabela, M (Mihla)
2	2	Tournament 2024 King Cetshwayo Chess Open				Tournament 2024 Umfolozi Chess Tournament
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-05-17	rnd 1	type Standard	result 1
		Opponent Dlamini, A (Ayema)				Opponent Sabela, M (Mihla)
3	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 4	type Standard	result 1	date 2023-07-30	rnd 5	type Standard	result 1
		Opponent Ndwandwe, S (Siyanda)				Opponent Dlamini, Z (Zamangwane)

#	Games	Start				End
1	2	Tournament 2024 King Cetshwayo Chess Open				Tournament 2024 Umfolozi Chess Tournament
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-05-17	rnd 1	type Standard	result 1
		Opponent Dlamini, A (Ayema)				Opponent Sabela, M (Mihla)
2	2	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Winter Open
		date 2023-07-29	rnd 4	type Standard	result 1	date 2023-07-30	rnd 5	type Standard	result 1
		Opponent Ndwandwe, S (Siyanda)				Opponent Dlamini, Z (Zamangwane)
3	2	Tournament 2023 King Cetshwayo Chess Anniversary				Tournament 2023 King Cetshwayo Chess Anniversary
		date 2023-04-22	rnd 3	type Standard	result 1	date 2023-04-22	rnd 4	type Standard	result 1
		Opponent Mngadi, A (Andile)				Opponent Khumalo, N (Nokwanda)

#	Games	Start				End
1	2	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2023 King Cetswayo SALGA Elimination
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2023-10-14	rnd 5	type Rapid	result 1
		Opponent Dlamini, S (Sinenhlanhla)				Opponent Dludla, S (Sphelele)
2	1	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2023 King Cetswayo SALGA Elimination
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2023-10-14	rnd 2	type Rapid	result 1
		Opponent Mnguni, A (Andiswa)				Opponent Mnguni, A (Andiswa)

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	Swart ,J (John)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Swart ,J (John)	3	966.1	824.4	3	958.1	824.4	0	0	0	0	0	0
2	Dlamini ,A (Ayema)	2	2	425	2	2	425	0	0	0	0	0	0
2	Dlamini ,A (Ayema)	2	1160.7	1585.7	2	1151.6	1585.7	0	0	0	0	0	0
3	Nene ,K (Kwethemba)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Nene ,K (Kwethemba)	2	1411.1	986.1	2	1422	986.1	0	0	0	0	0	0
4	Motaung ,T (Tefo)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Motaung ,T (Tefo)	2	1177.4	1389.9	2	1173.6	1389.9	0	0	0	0	0	0
5	Mthembu ,L (Linda)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Mthembu ,L (Linda)	2	1317.5	892.5	2	1319.1	892.5	0	0	0	0	0	0
6	Sabela ,M (Mihla)	2	2	425	2	2	425	0	0	0	0	0	0
6	Sabela ,M (Mihla)	2	1203.8	1628.8	2	1203.2	1628.8	0	0	0	0	0	0
7	Ndamane ,S (Sihe)	2	1	0	2	1	0	0	0	0	0	0	0
7	Ndamane ,S (Sihe)	2	1165.5	1165.5	2	1158.4	1165.5	0	0	0	0	0	0
8	Sibiya ,N (Nkosikhona)	2	2	425	2	2	425	0	0	0	0	0	0
8	Sibiya ,N (Nkosikhona)	2	1166.2	1591.2	2	1158.6	1591.2	0	0	0	0	0	0
9	Nkosi ,A (Amahle)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Nkosi ,A (Amahle)	2	1199.7	774.7	2	1197.6	774.7	0	0	0	0	0	0
10	Singh ,D (Diya)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Singh ,D (Diya)	2	827.9	615.4	2	844.5	615.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Jack, S (Siyamthanda)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms