Chess South Africa Ratings Database

PLAYER PAGE

Personal

Sibiya, N (Ndumiso)

Chess SA id

1090304691

FIDE id

Date of birth

2009-12-28 (U18)

Gender

Male

Region

Ugu (KUG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1236.6	1215.2	1238.5	1200
Raw rating	1236.6	1215.2	1228.7	1200
Weighted rating	1226.2	1201.3	1238.5	1200
Weighted performance	1138.2	0	0	0
Floor	741.6	715.2	749.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.4	162.3	159.2	165.8
Highest rating	1283.2 2024-09-01	1215.2 2025-06-01	1408.4 2024-09-01	1200 2024-06-01
Highest raw rating	1241.6 2025-06-01	1215.2 2025-06-01	1249.2 2024-10-01	1200 2024-06-01
Highest weighted rating	1226.2 2025-11-01	1215.2 2024-11-01	1238.5 2025-11-01	1200 2024-06-01
Highest weighted performance	1283.2 2024-09-01	1200 2024-12-01	1408.4 2024-09-01	1200 2024-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0.1	0
New rating	1236.6	1215.2	1238.6	1200
Analysis
Rating	1236.6	1215.2	1238.5	1200
Raw rating	1236.6	1215.2	1228.7	1200
Weighted rating	1226.2	1201.3	1238.5
Weighted performance	1138.2	0	0
K-factor	36	36	36	36
Floor	741.6	715.2	749.2	700
Max/Min rating change allowed	157.4	162.3	159.2	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	1236.6	1215.2	1228.7	1200
New weighted rating	1227.9	1202.8	1238.6	1200
New weighted performance	1131	0	0	0
Temp new rating	1236.6	1215.2	1238.6	1200
Temp new rating +/-	0	0	0.1	0
Final new rating +/-	0	0	0.1	0
New rating	1236.6	1215.2	1238.6	1200
New K-factor	36	36	36	36
New floor	741.6	715.2	749.2	700

Item	Main	Standard	Rapid
	0	0	0
	12	7	5
	14	9	5
	0	0	0
	0	0	0
	0	0	0
History	26	16	10

Games since
	Main 26	Standard 16		Rapid 10		Blitz 0
Gender	Male
Age group	U18
Region	Ugu (KUG)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	12	4.5	37.5	-106.2	1351.7	1245.4
Standard	7	2.5	35.71	-121.4	1392.6	1271.2
Rapid	5	2	40	-85	1294.4	1209.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	26	12	46.15	-32.7	1289.4	1256.8
Standard	16	6.5	40.62	-79.7	1295	1215.3
Rapid	10	5.5	55	42.5	1280.5	1323
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1236.6	1215.2	1228.7	1200
2025-09-30	1241.6	1215.2	1249.2	1200
2025-09-01	1241.6	1215.2	1249.2	1200
2025-08-01	1241.6	1215.2	1249.2	1200
2025-07-01	1241.6	1215.2	1249.2	1200
2025-06-01	1241.6	1215.2	1249.2	1200
2025-05-01	1232.8	1198.8	1249.2	1200
2025-04-01	1232.8	1198.8	1249.2	1200
2025-03-01	1232.8	1198.8	1249.2	1200
2025-02-01	1232.8	1198.8	1249.2	1200
2025-01-01	1232.8	1198.8	1249.2	1200
2024-12-01	1232.8	1198.8	1249.2	1200
2024-11-01	1232.8	1198.8	1249.2	1200
2024-10-01	1232.8	1198.8	1249.2	1200
2024-09-01	1165.1	1158	1200	1200
2024-08-01	1165.1	1158	1200	1200
2024-07-01	1165.1	1158	1200	1200
2024-09-01	1165.1	1158	1200	1200
2024-05-01	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

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	Port Shepstone High School Chess Festival 2025 (High School)	2025-10-25	2025-10-25	Rapid	Ugu (KUG)	5	5	2	Yes	Analysis
2	Ugu Women's Day tournament 2025 (Open)	2025-08-09	2025-08-09	Rapid	Ugu (KUG)	6	0	0	No	Analysis
3	2025 KZN Open (B)	2025-05-02	2025-05-04	Standard	Ethekwini (KED)	7	7	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Port Shepstone High School Chess Festival 2025 (High School)	2025-10-25	2025-10-25	Rapid	Ugu (KUG)	5	5	2	Yes	Analysis
2	Ugu Women's Day tournament 2025 (Open)	2025-08-09	2025-08-09	Rapid	Ugu (KUG)	6	0	0	No	Analysis
3	2025 KZN Open (B)	2025-05-02	2025-05-04	Standard	Ethekwini (KED)	7	7	2.5	Yes	Analysis
4	2024 UGU District Schools Trials (U15 Boys)	2024-09-07	2024-09-07	Standard	Ugu (KUG)	5	5	3	Yes	Analysis
5	2024 KZN Royals Chess Club Tournament (U16-U20)	2024-09-14	2024-09-14	Rapid	Ethekwini (KED)	5	5	3.5	Yes	Analysis
6	UGU Trials for KZN Open 2024 (U16)	2024-04-06	2024-04-06	Standard	Ugu (KUG)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2025 KZN Open				Tournament 2025 KZN Open
		date 2025-05-02	rnd 2	type Standard	result 1	date 2025-05-03	rnd 4	type Standard	result 0.5
		Opponent Asghar, A (Adam)				Opponent Baleni, A (Aphendule)
2	3	Tournament 2024 KZN Royals Chess Club Tournament				Tournament 2024 KZN Royals Chess Club Tournament
		date 2024-09-14	rnd 1	type Rapid	result 1	date 2024-09-14	rnd 3	type Rapid	result 0.5
		Opponent Mkhize, B (Banele)				Opponent Mahadeo, S (Shreeya)
3	2	Tournament 2024 UGU District Schools Trials				Tournament 2024 UGU District Schools Trials
		date 2024-09-07	rnd 1	type Standard	result 1	date 2024-09-07	rnd 2	type Standard	result 1
		Opponent Ngcobo, P (Philasande)				Opponent Sikhosana, M (Malusi)

#	Games	Start				End
1	3	Tournament 2025 KZN Open				Tournament 2025 KZN Open
		date 2025-05-02	rnd 2	type Standard	result 1	date 2025-05-03	rnd 4	type Standard	result 0.5
		Opponent Asghar, A (Adam)				Opponent Baleni, A (Aphendule)
2	2	Tournament 2024 UGU District Schools Trials				Tournament 2024 UGU District Schools Trials
		date 2024-09-07	rnd 1	type Standard	result 1	date 2024-09-07	rnd 2	type Standard	result 1
		Opponent Ngcobo, P (Philasande)				Opponent Sikhosana, M (Malusi)
3	1	Tournament 2024 UGU District Schools Trials				Tournament 2024 UGU District Schools Trials
		date 2024-09-07	rnd 4	type Standard	result 1	date 2024-09-07	rnd 4	type Standard	result 1
		Opponent Mbuthuma, L (Lwandile)				Opponent Mbuthuma, L (Lwandile)

#	Games	Start				End
1	3	Tournament 2024 KZN Royals Chess Club Tournament				Tournament 2024 KZN Royals Chess Club Tournament
		date 2024-09-14	rnd 1	type Rapid	result 1	date 2024-09-14	rnd 3	type Rapid	result 0.5
		Opponent Mkhize, B (Banele)				Opponent Mahadeo, S (Shreeya)
2	1	Tournament 2024 KZN Royals Chess Club Tournament				Tournament 2024 KZN Royals Chess Club Tournament
		date 2024-09-14	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 5	type Rapid	result 1
		Opponent Msomi, E (Emihle)				Opponent Msomi, E (Emihle)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2025 KZN Open				Tournament 2025 KZN Open
		date 2025-05-02	rnd 2	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Asghar, A (Adam)				Opponent Dawah, D (Dhyan)
2	2	Tournament 2024 KZN Royals Chess Club Tournament				Tournament 2024 KZN Royals Chess Club Tournament
		date 2024-09-14	rnd 1	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Mkhize, B (Banele)				Opponent Thini, L (Lwandile)
3	2	Tournament 2024 UGU District Schools Trials				Tournament 2024 UGU District Schools Trials
		date 2024-09-07	rnd 1	type Standard	result 1	date 2024-09-07	rnd 2	type Standard	result 1
		Opponent Ngcobo, P (Philasande)				Opponent Sikhosana, M (Malusi)

#	Games	Start				End
1	2	Tournament 2025 KZN Open				Tournament 2025 KZN Open
		date 2025-05-02	rnd 2	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Asghar, A (Adam)				Opponent Dawah, D (Dhyan)
2	2	Tournament 2024 UGU District Schools Trials				Tournament 2024 UGU District Schools Trials
		date 2024-09-07	rnd 1	type Standard	result 1	date 2024-09-07	rnd 2	type Standard	result 1
		Opponent Ngcobo, P (Philasande)				Opponent Sikhosana, M (Malusi)
3	1	Tournament 2024 UGU District Schools Trials				Tournament 2024 UGU District Schools Trials
		date 2024-09-07	rnd 4	type Standard	result 1	date 2024-09-07	rnd 4	type Standard	result 1
		Opponent Mbuthuma, L (Lwandile)				Opponent Mbuthuma, L (Lwandile)

#	Games	Start				End
1	2	Tournament 2024 KZN Royals Chess Club Tournament				Tournament 2024 KZN Royals Chess Club Tournament
		date 2024-09-14	rnd 1	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Mkhize, B (Banele)				Opponent Thini, L (Lwandile)
2	1	Tournament 2024 KZN Royals Chess Club Tournament				Tournament 2024 KZN Royals Chess Club Tournament
		date 2024-09-14	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 5	type Rapid	result 1
		Opponent Msomi, E (Emihle)				Opponent Msomi, E (Emihle)

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	Phuthumani ,I (Iviwe)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Phuthumani ,I (Iviwe)	2	1413.1	988.1	2	1401.7	988.1	0	0	0	0	0	0
2	Gida ,M (Mihle)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Gida ,M (Mihle)	2	1278.2	853.2	1	1200	853.2	1	1287.9	853.2	0	0	0
3	Khoza ,S (Slindokuhle)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Khoza ,S (Slindokuhle)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Govender ,D (Dejuan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Govender ,D (Dejuan)	1	1367.8	942.8	1	1357	942.8	0	0	0	0	0	0
5	Mbuthuma ,L (Lwandile)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mbuthuma ,L (Lwandile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Dawah ,D (Dhyan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Dawah ,D (Dhyan)	1	1441.8	1866.8	1	1435	1866.8	0	0	0	0	0	0
7	Ngcobo ,P (Philasande)	1	1	425	1	1	425	0	0	0	0	0	0
7	Ngcobo ,P (Philasande)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Nxumalo ,S (Sisonke)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Nxumalo ,S (Sisonke)	1	1415.4	990.4	1	1404.4	990.4	0	0	0	0	0	0
9	Asghar ,A (Adam)	1	1	425	1	1	425	0	0	0	0	0	0
9	Asghar ,A (Adam)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Baleni ,A (Aphendule)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Baleni ,A (Aphendule)	1	1409.1	1409.1	1	1396.3	1409.1	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

Sibiya, N (Ndumiso)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms