Chess South Africa Ratings Database

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Personal

Ngcobo, S (Siyamthemba)

Chess SA id

2120136165

FIDE id

Date of birth

2012-12-21 (U14)

Gender

Female

Region

King Cetshwayo (KUR)

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

1280.7

Item	Main	Standard	Rapid	Blitz
Rating	1399.6	1462.9	1306.4	1200
Raw rating	1399.6	1462.9	1241.9	1200
Weighted rating	1363.6	1366.8	1306.4	1200
Weighted performance	1349.5	1456.9	1173.2	0
Floor	948.7	962.9	871.7	700
K-factor	32	32	36	36
Min/Max rating change allowed	124.8	114	156.2	165.8
Highest rating	1448.7 2025-09-01	1462.9 2025-09-30	1371.7 2025-09-01	1200 2018-10-01
Highest raw rating	1448.7 2025-09-01	1462.9 2025-09-30	1371.7 2025-09-01	1200 2024-03-01
Highest weighted rating	1363.6 2025-09-30	1366.8 2025-09-30	1312.4 2025-09-01	1200 2018-10-01
Highest weighted performance	1436.3 2025-09-01	1456.9 2025-09-30	1342.7 2023-10-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-5.7	0
New rating	1399.6	1462.9	1300.7	1200
Analysis
Rating	1399.6	1462.9	1306.4	1200
Raw rating	1399.6	1462.9	1241.9	1200
Weighted rating	1363.6	1366.8	1306.4
Weighted performance	1349.5	1456.9	1173.2
K-factor	32	32	36	36
Floor	948.7	962.9	871.7	700
Max/Min rating change allowed	124.8	114	156.2	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	1399.6	1462.9	1241.9	1200
New weighted rating	1367.9	1376.9	1300.7	1200
New weighted performance	1349.1	1456.3	1172.8	0
Temp new rating	1399.6	1462.9	1300.7	1200
Temp new rating +/-	0	0	-5.7	0
Final new rating +/-	0	0	-5.7	0
New rating	1399.6	1462.9	1300.7	1200
New K-factor	32	32	36	36
New floor	948.7	962.9	871.7	700

Item	Main	Standard	Rapid
	0	0	0
	42	25	17
	42	35	7
	35	19	16
	41	27	14
	4	4	0
History	164	110	54

Games since
	Main 100	Standard 66		Rapid 34		Blitz 0
Gender	Female
Age group	U14
Region	King Cetshwayo (KUR)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	2168		143		25
Female	367		18		3
U14	343		24		3
U14 Female	82		5		1
Standard
	RSA		Province		Region
Overall	1463		96		13
Female	224		9		1
U14	220		18		2
U14 Female	49		5		1
Rapid
	RSA		Province		Region
Overall	1008		109		20
Female	171		19		4
U14	222		30		6
U14 Female	57		6		2
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	42	26	61.9	101.2	1300.5	1401.7
Standard	25	18	72	187	1289.2	1476.2
Rapid	17	8	47.06	-25	1317	1292
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	164	98	59.76	82.9	1230.2	1313.1
Standard	110	69	62.73	108.2	1229.9	1338.1
Rapid	54	29	53.7	31.5	1230.8	1262.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1399.6	1462.9	1241.9	1200
2025-09-01	1448.7	1419.7	1371.7	1200
2025-08-01	1421.3	1419.7	1307.4	1200
2025-07-01	1421.3	1419.7	1307.2	1200
2025-06-01	1421.3	1419.7	1306.6	1200
2025-05-01	1389.4	1394.7	1305.5	1200
2025-04-01	1332.2	1346.3	1304.1	1200
2025-03-01	1349.1	1372.2	1302.2	1200
2025-02-01	1331.6	1357.1	1298.8	1200
2025-01-01	1331.6	1357.1	1278.8	1200
2024-12-01	1331.6	1357.1	1278.8	1200
2024-11-01	1264.7	1277.2	1278.8	1200
2024-10-01	1281.5	1277.2	1307.2	1200
2024-09-01	1281.5	1277.2	1307.2	1200
2024-08-01	1295.1	1277.2	1332	1200
2024-07-01	1351.4	1327.6	1332	1200
2024-06-01	1366	1346	1332	1200
2024-08-01	1346.3	1308.6	1332	1200
2024-04-01	1346.3	1308.6	1332	1200
2024-03-01	1346.3	1308.6	1332	1200
2024-02-01	1326.5	1273.3	1332	1200
2024-01-01	1326.5	1273.3	1332	1200
2023-12-01	1326.5	1273.3	1332	1200
2023-11-01	1275.3	1215.7	1332	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	2025 Umhlathuze Mayoral Cup (U14 Girls)	2025-09-20	2025-09-20	Standard	King Cetshwayo (KUR)	5	5	4.5	Yes	Analysis
2	2025 KZN Provincial Trials (U14)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	6	1	Yes	Analysis
3	2025 KwaZulu-Natal Women Championship (Teams)	2025-08-23	2025-08-23	Rapid	King Cetshwayo (KUR)	6	6	3	Yes	Analysis
4	2025 King Cetshwayo Inter-School Teams Junior Primary (Intermediate)	2025-08-02	2025-08-02	Rapid	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
5	2025 King Cetshwayo Winter Open (U14)	2025-05-17	2025-05-17	Standard	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
6	2025 King Cetshwayo Anniversary (U14 Girls)	2025-04-12	2025-04-12	Standard	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
7	2025 Kinng Cetshwayo Championship (U14 Girls)	2025-03-01	2025-03-01	Standard	King Cetshwayo (KUR)	5	5	2.5	Yes	Analysis
8	2025 King Cetshwayo Open (U14)	2025-02-15	2025-02-15	Standard	King Cetshwayo (KUR)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Umhlathuze Mayoral Cup (U14 Girls)	2025-09-20	2025-09-20	Standard	King Cetshwayo (KUR)	5	5	4.5	Yes	Analysis
2	2025 KZN Provincial Trials (U14)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	6	1	Yes	Analysis
3	2025 KwaZulu-Natal Women Championship (Teams)	2025-08-23	2025-08-23	Rapid	King Cetshwayo (KUR)	6	6	3	Yes	Analysis
4	2025 King Cetshwayo Inter-School Teams Junior Primary (Intermediate)	2025-08-02	2025-08-02	Rapid	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
5	2025 King Cetshwayo Winter Open (U14)	2025-05-17	2025-05-17	Standard	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
6	2025 King Cetshwayo Anniversary (U14 Girls)	2025-04-12	2025-04-12	Standard	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
7	2025 Kinng Cetshwayo Championship (U14 Girls)	2025-03-01	2025-03-01	Standard	King Cetshwayo (KUR)	5	5	2.5	Yes	Analysis
8	2025 King Cetshwayo Open (U14)	2025-02-15	2025-02-15	Standard	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
9	2024 King Cetshwayo Junior & Intermediate Tournament 2024 (U14)	2024-11-02	2024-11-02	Standard	King Cetshwayo (KUR)	5	5	5	Yes	Analysis
10	2024 Umhlthuze Mayoral Cup (U14)	2024-10-19	2024-10-19	Rapid	King Cetshwayo (KUR)	5	5	2	Yes	Analysis
11	2024 King Cetswayo Chess Womens Championship (Open)	2024-08-24	2024-08-24	Rapid	King Cetshwayo (KUR)	5	2	1	Yes	Analysis
12	2024 Nelson Mandela Chess Tournament (U14)	2024-07-20	2024-07-20	Standard	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
13	South African Open Chess Championship 2024 (C)	2024-07-04	2024-07-07	Standard	Ethekwini (KED)	7	6	3	Yes	Analysis
14	2024 King Cetshwayo Winter Open (U14)	2024-06-08	2024-06-08	Standard	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
15	2024 King Cesthwayo Chess Anniversary (U14)	2024-04-20	2024-04-21	Standard	King Cetshwayo (KUR)	7	7	5	Yes	Analysis
16	2024 King Cetshwayo Chess Open (B)	2024-02-17	2024-02-18	Standard	King Cetshwayo (KUR)	7	7	4.5	Yes	Analysis
17	2023 KZN SALGA Games Chess Tournament 2023	2023-12-08	2023-12-10	Standard	Ethekwini (KED)	7	6	4	Yes	Analysis
18	2023 King Cetshwayo Junior & Intermediate Chess Tournament (U12)	2023-10-28	2023-10-28	Rapid	King Cetshwayo (KUR)	5	5	4	Yes	Analysis
19	2023 King Cetswayo SALGA Elimination (U14 Girls)	2023-10-14	2023-10-14	Rapid	King Cetshwayo (KUR)	5	5	4.5	Yes	Analysis
20	UniZulu Tournament 2023 (U10+U12)	2023-09-23	2023-09-23	Standard	King Cetshwayo (KUR)	6	6	3	Yes	Analysis
21	2023 King Cetshwayo Winter Open (U12)	2023-07-29	2023-07-29	Rapid	King Cetshwayo (KUR)	6	6	3.5	Yes	Analysis
22	2023 King Cetshwayo Chess Anniversary (U12)	2023-04-22	2023-04-23	Standard	King Cetshwayo (KUR)	7	7	3	Yes	Analysis
23	2022 Salga KZN Dsr Games KC Team Selections (U14)	2022-10-15	2022-10-15	Rapid	King Cetshwayo (KUR)	5	5	2	Yes	Analysis
24	2022 King Cetshwayo Junior & Intermediate (U12)	2022-10-29	2022-10-29	Rapid	King Cetshwayo (KUR)	5	5	2	Yes	Analysis
25	2022 Unizulu Chess Tournament (U10-U14)	2022-09-03	2022-09-04	Standard	King Cetshwayo (KUR)	7	7	4	Yes	Analysis
26	2022 Mlalazi Chess Championship (Junior)	2022-05-14	2022-05-14	Rapid	King Cetshwayo (KUR)	5	4	2	Yes	Analysis
27	2022 King Cetshwayo Championship (U14)	2022-05-28	2022-05-29	Standard	King Cetshwayo (KUR)	7	7	4	Yes	Analysis
28	2022 King Cetshwayo Anniversary (U10-U14)	2022-03-12	2022-03-13	Standard	King Cetshwayo (KUR)	7	6	3	Yes	Analysis
29	2022 King Cetshwayo Open (U10-U14)	2022-02-19	2022-02-20	Standard	King Cetshwayo (KUR)	7	7	4	Yes	Analysis
30	2021 King Cetshwayo Christmas Tournament (U10)	2021-11-27	2021-11-28	Standard	King Cetshwayo (KUR)	7	4	2.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament 2024 King Cetshwayo Junior & Intermediate Tournament 2024				Tournament 2025 King Cetshwayo Open
		date 2024-11-02	rnd 1	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Mulholand, E (Emmy)				Opponent Khumalo, P (Phembuxolo)
2	6	Tournament 2023 King Cetswayo SALGA Elimination				Tournament 2023 King Cetshwayo Junior & Intermediate Chess Tournament
		date 2023-10-14	rnd 1	type Rapid	result 1	date 2023-10-28	rnd 1	type Rapid	result 1
		Opponent Shange, A (Asemahle)				Opponent Hlongwane, K (Khaya)
3	5	Tournament 2023 King Cetshwayo Winter Open				Tournament UniZulu Tournament 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-09-23	rnd 1	type Standard	result 1
		Opponent Msweli, K (Khanya)				Opponent Harypursat, R (Rylan)

#	Games	Start				End
1	7	Tournament 2024 Nelson Mandela Chess Tournament				Tournament 2025 King Cetshwayo Open
		date 2024-07-20	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Carstens, J (Jayden)				Opponent Khumalo, P (Phembuxolo)
2	4	Tournament 2025 King Cetshwayo Anniversary				Tournament 2025 King Cetshwayo Winter Open
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Beharry, A (Aurora)				Opponent Mkhize, N (Nqubeko)
3	4	Tournament 2023 KZN SALGA Games Chess Tournament 2023				Tournament 2024 King Cetshwayo Chess Open
		date 2023-12-10	rnd 6	type Standard	result 1	date 2024-02-17	rnd 2	type Standard	result 1
		Opponent Baleni, A (Aphendule)				Opponent Heenop, D (Darious)

#	Games	Start				End
1	10	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetshwayo Junior & Intermediate Chess Tournament
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-10-28	rnd 1	type Rapid	result 1
		Opponent Msweli, K (Khanya)				Opponent Hlongwane, K (Khaya)
2	3	Tournament 2025 King Cetshwayo Inter-School Teams Junior Primary				Tournament 2025 King Cetshwayo Inter-School Teams Junior Primary
		date 2025-08-02	rnd 3	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Beharry, A (Aurora)				Opponent Musliah, S (Shayan)
3	3	Tournament 2023 King Cetshwayo Junior & Intermediate Chess Tournament				Tournament 2023 King Cetshwayo Junior & Intermediate Chess Tournament
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2023-10-28	rnd 5	type Rapid	result 1
		Opponent Zondi, B (Bandile)				Opponent Pillay, G (Giuliana)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 2024 King Cetshwayo Junior & Intermediate Tournament 2024				Tournament 2025 King Cetshwayo Open
		date 2024-11-02	rnd 1	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Mulholand, E (Emmy)				Opponent Khumalo, P (Phembuxolo)
2	4	Tournament 2025 King Cetshwayo Winter Open				Tournament 2025 King Cetshwayo Inter-School Teams Junior Primary
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-08-02	rnd 1	type Rapid	result 1
		Opponent Le Roux, J (Javier)				Opponent Hlophe, M (Mayenziwe)
3	4	Tournament 2025 King Cetshwayo Anniversary				Tournament 2025 King Cetshwayo Winter Open
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Beharry, A (Aurora)				Opponent Mkhize, N (Nqubeko)

#	Games	Start				End
1	7	Tournament 2024 Nelson Mandela Chess Tournament				Tournament 2025 King Cetshwayo Open
		date 2024-07-20	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Carstens, J (Jayden)				Opponent Khumalo, P (Phembuxolo)
2	4	Tournament 2025 King Cetshwayo Anniversary				Tournament 2025 King Cetshwayo Winter Open
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Beharry, A (Aurora)				Opponent Mkhize, N (Nqubeko)
3	4	Tournament 2023 KZN SALGA Games Chess Tournament 2023				Tournament 2024 King Cetshwayo Chess Open
		date 2023-12-10	rnd 6	type Standard	result 1	date 2024-02-17	rnd 2	type Standard	result 1
		Opponent Baleni, A (Aphendule)				Opponent Heenop, D (Darious)

#	Games	Start				End
1	4	Tournament 2023 King Cetshwayo Winter Open				Tournament 2023 King Cetswayo SALGA Elimination
		date 2023-07-29	rnd 6	type Rapid	result 1	date 2023-10-14	rnd 3	type Rapid	result 1
		Opponent Mthembu, M (Mnqobi)				Opponent Pillay, G (Giuliana)
2	3	Tournament 2025 King Cetshwayo Inter-School Teams Junior Primary				Tournament 2025 King Cetshwayo Inter-School Teams Junior Primary
		date 2025-08-02	rnd 3	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Beharry, A (Aurora)				Opponent Musliah, S (Shayan)
3	3	Tournament 2023 King Cetshwayo Junior & Intermediate Chess Tournament				Tournament 2023 King Cetshwayo Junior & Intermediate Chess Tournament
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2023-10-28	rnd 5	type Rapid	result 1
		Opponent Zondi, B (Bandile)				Opponent Pillay, G (Giuliana)

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	Pillay ,G (Giuliana)	8	6	212.5	5	4	255	3	2	141.7	0	0	0
1	Pillay ,G (Giuliana)	8	1235.6	1448.1	5	1247.9	1490.6	3	1185.6	1377.3	0	0	0
2	Mulholland ,E (Emmy)	5	1	-255	5	1	-255	0	0	0	0	0	0
2	Mulholland ,E (Emmy)	5	1269.3	1014.3	5	1299.9	1014.3	0	0	0	0	0	0
3	Beharry ,A (Aurora)	5	3	85	3	2	141.7	2	1	0	0	0	0
3	Beharry ,A (Aurora)	5	1311.1	1396.1	3	1247.1	1452.7	2	1438.2	1311.1	0	0	0
4	Botha ,L (Louis)	4	0	-425	4	0	-425	0	0	0	0	0	0
4	Botha ,L (Louis)	4	1281	856	4	1270.8	856	0	0	0	0	0	0
5	Hlophe ,M (Mayenziwe)	4	3	212.5	2	2	425	2	1	0	0	0	0
5	Hlophe ,M (Mayenziwe)	4	1318.4	1530.9	2	1225.8	1743.4	2	1412.8	1318.4	0	0	0
6	Gqibitole ,WO (Wonga)	3	0	-425	3	0	-425	0	0	0	0	0	0
6	Gqibitole ,WO (Wonga)	3	1284	859	3	1299.2	859	0	0	0	0	0	0
7	Govender ,TK (Trivae)	3	0	-425	3	0	-425	0	0	0	0	0	0
7	Govender ,TK (Trivae)	3	1461.3	1036.3	3	1441.6	1036.3	0	0	0	0	0	0
8	Reddy ,T (Tyler)	3	2	141.7	2	1	0	1	1	425	0	0	0
8	Reddy ,T (Tyler)	3	1221	1362.6	2	1176.2	1221	1	1248.9	1646	0	0	0
9	Mchunu ,Y (Yethu)	3	1.5	0	1	0	-425	2	1.5	212.5	0	0	0
9	Mchunu ,Y (Yethu)	3	1205.2	1205.2	1	1218	780.2	2	1200	1417.7	0	0	0
10	Nyawo ,N (Nqubeko)	2	2	425	2	2	425	0	0	0	0	0	0
10	Nyawo ,N (Nqubeko)	2	1245.8	1670.8	2	1249.8	1670.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Ngcobo, S (Siyamthemba)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms