Chess South Africa Ratings Database

PLAYER PAGE

Personal

Biyela, Z (Zululami)

Chess SA id

1160190489

FIDE id

Date of birth

2016-08-20 (U10)

Gender

Male

Region

King Cetshwayo (KUR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

17.2

Junior GPX Points

1058.4

Item	Main	Standard	Rapid	Blitz
Rating	1186.7	1188.7	1191.4	1200
Raw rating	1186.7	1188.7	1171.8	1200
Weighted rating	1184.6	1179.6	1191.4	1200
Weighted performance	1146.4	1048.2	0	0
Floor	712	700	728.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	169	168.5	172.6	165.8
Highest rating	1212 2025-08-01	1200 2018-10-01	1228.8 2025-08-01	1200 2018-10-01
Highest raw rating	1212 2025-08-01	1200 2024-02-01	1228.8 2025-08-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1207.6 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-1.3	0
New rating	1186.7	1188.7	1190	1200
Analysis
Rating	1186.7	1188.7	1191.4	1200
Raw rating	1186.7	1188.7	1171.8	1200
Weighted rating	1184.6	1179.6	1191.4
Weighted performance	1146.4	1048.2	0
K-factor	36	36	36	36
Floor	712	700	728.8	700
Max/Min rating change allowed	169	168.5	172.6	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	1186.7	1188.7	1171.8	1200
New weighted rating	1185	1180.3	1190	1200
New weighted performance	1146	1047.8	0	0
Temp new rating	1186.7	1188.7	1190	1200
Temp new rating +/-	0	0	-1.3	0
Final new rating +/-	0	0	-1.3	0
New rating	1186.7	1188.7	1190	1200
New K-factor	36	36	36	36
New floor	712	700	728.8	700

Item	Main	Standard	Rapid
	0	0	0
	21	8	13
	15	15	0
	5	0	5
	0	0	0
	0	0	0
History	41	23	18

Games since
	Main 41	Standard 23		Rapid 18		Blitz 0
Gender	Male
Age group	U10
Region	King Cetshwayo (KUR)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	4106		261		60
Male	3075		205		45
U10	390		23		7
U10 Male	293		16		5
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	21	10	47.62	-20.2	1230	1209.8
Standard	8	4	50	0	1216.7	1216.7
Rapid	13	6	46.15	-32.7	1238.3	1205.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	41	17.5	42.68	-62.2	1226	1163.8
Standard	23	9.5	41.3	-73.9	1224.8	1150.9
Rapid	18	8	44.44	-47.2	1227.7	1180.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1186.7	1188.7	1171.8	1200
2025-09-01	1186.7	1188.7	1171.8	1200
2025-08-01	1212	1188.7	1228.8	1200
2025-07-01	1197.6	1188.7	1207.6	1200
2025-06-01	1197.6	1188.7	1207.6	1200
2025-05-01	1197.6	1188.7	1207.6	1200
2025-04-01	1194.2	1182.5	1207.6	1200
2025-03-01	1183.8	1182.5	1184.9	1200
2025-02-01	1175.9	1174.6	1184.9	1200
2025-01-01	1157.7	1148.9	1183.4	1200
2024-12-01	1157.7	1148.9	1183.4	1200
2024-11-01	1176.2	1174.1	1183.4	1200
2024-10-01	1176.2	1174.1	1183.4	1200
2024-09-01	1176.2	1174.1	1183.4	1200
2024-08-01	1176.2	1174.1	1183.4	1200
2024-07-01	1176.2	1174.1	1183.4	1200
2024-06-01	1172.3	1171.9	1183.4	1200
2024-08-01	1172.3	1171.9	1183.4	1200
2024-04-01	1172.3	1171.9	1183.4	1200
2024-03-01	1172.3	1171.9	1183.4	1200
2024-02-01	1191.1	1200	1183.4	1200
2024-01-01	1191.1	1200	1183.4	1200
2023-12-01	1191.1	1200	1183.4	1200
2023-11-01	1191.1	1200	1183.4	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 King Cetshwayo Inter-School Teams Junior Primary	2025-08-02	2025-08-02	Rapid	King Cetshwayo (KUR)	3	3	0	Yes	Analysis
2	2025 Grantleigh Curro Chess Inter-House (Grade 3 Boys)	2025-07-01	2025-07-01	Rapid	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
3	2025 King Cetshwayo Anniversary (U10)	2025-04-12	2025-04-12	Standard	King Cetshwayo (KUR)	5	4	2	Yes	Analysis
4	Grantleigh Chess Inter-House 2025 (Grade 3 Boys)	2025-03-27	2025-03-27	Rapid	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
5	2025 King Cetshwayo Open (U10)	2025-02-15	2025-02-15	Standard	King Cetshwayo (KUR)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 King Cetshwayo Inter-School Teams Junior Primary	2025-08-02	2025-08-02	Rapid	King Cetshwayo (KUR)	3	3	0	Yes	Analysis
2	2025 Grantleigh Curro Chess Inter-House (Grade 3 Boys)	2025-07-01	2025-07-01	Rapid	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
3	2025 King Cetshwayo Anniversary (U10)	2025-04-12	2025-04-12	Standard	King Cetshwayo (KUR)	5	4	2	Yes	Analysis
4	Grantleigh Chess Inter-House 2025 (Grade 3 Boys)	2025-03-27	2025-03-27	Rapid	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
5	2025 King Cetshwayo Open (U10)	2025-02-15	2025-02-15	Standard	King Cetshwayo (KUR)	5	4	2	Yes	Analysis
6	2024 King Cetshwayo Junior & Intermediate Tournament 2024 (U10 Boys)	2024-11-02	2024-11-02	Standard	King Cetshwayo (KUR)	5	4	1	Yes	Analysis
7	2024 King Cetshwayo Winter Open (U10)	2024-06-08	2024-06-08	Standard	King Cetshwayo (KUR)	5	5	2.5	Yes	Analysis
8	2024 King Cetshwayo Chess Open (C)	2024-02-17	2024-02-18	Standard	King Cetshwayo (KUR)	7	6	2	Yes	Analysis
9	2023 King Cetshwayo Junior & Intermediate Chess Tournament (U8)	2023-10-28	2023-10-28	Rapid	King Cetshwayo (KUR)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Grantleigh Chess Inter-House 2025				Tournament Grantleigh Chess Inter-House 2025
		date 2025-03-27	rnd 2	type Rapid	result 1	date 2025-03-27	rnd 4	type Rapid	result 1
		Opponent Naidoo, T (Thiresen)				Opponent Xulu, M (Moyo)
2	2	Tournament 2025 Grantleigh Curro Chess Inter-House				Tournament 2025 Grantleigh Curro Chess Inter-House
		date 2025-07-01	rnd 2	type Rapid	result 1	date 2025-07-01	rnd 3	type Rapid	result 1
		Opponent Kapongo, J (Jediel)				Opponent Currie, J (Josiah)
3	2	Tournament 2024 King Cetshwayo Junior & Intermediate Tournament 2024				Tournament 2025 King Cetshwayo Open
		date 2024-11-02	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Christians, J (Joshua)				Opponent Sabjee, N (Nuhaa)

#	Games	Start				End
1	2	Tournament 2024 King Cetshwayo Junior & Intermediate Tournament 2024				Tournament 2025 King Cetshwayo Open
		date 2024-11-02	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Christians, J (Joshua)				Opponent Sabjee, N (Nuhaa)
2	2	Tournament 2024 King Cetshwayo Winter Open				Tournament 2024 King Cetshwayo Winter Open
		date 2024-06-08	rnd 2	type Standard	result 0.5	date 2024-06-08	rnd 3	type Standard	result 1
		Opponent Mntambo, T (Thandiwe)				Opponent Mampoke, B (Bophelo)
3	1	Tournament 2025 King Cetshwayo Anniversary				Tournament 2025 King Cetshwayo Anniversary
		date 2025-04-12	rnd 5	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Van Veru, K (Karli)				Opponent Van Veru, K (Karli)

#	Games	Start				End
1	3	Tournament Grantleigh Chess Inter-House 2025				Tournament Grantleigh Chess Inter-House 2025
		date 2025-03-27	rnd 2	type Rapid	result 1	date 2025-03-27	rnd 4	type Rapid	result 1
		Opponent Naidoo, T (Thiresen)				Opponent Xulu, M (Moyo)
2	2	Tournament 2025 Grantleigh Curro Chess Inter-House				Tournament 2025 Grantleigh Curro Chess Inter-House
		date 2025-07-01	rnd 2	type Rapid	result 1	date 2025-07-01	rnd 3	type Rapid	result 1
		Opponent Kapongo, J (Jediel)				Opponent Currie, J (Josiah)
3	1	Tournament 2025 Grantleigh Curro Chess Inter-House				Tournament 2025 Grantleigh Curro Chess Inter-House
		date 2025-07-01	rnd 5	type Rapid	result 1	date 2025-07-01	rnd 5	type Rapid	result 1
		Opponent Nxumalo, N (Ntandoyenkosi)				Opponent Nxumalo, N (Ntandoyenkosi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Grantleigh Chess Inter-House 2025				Tournament Grantleigh Chess Inter-House 2025
		date 2025-03-27	rnd 2	type Rapid	result 1	date 2025-03-27	rnd 4	type Rapid	result 1
		Opponent Naidoo, T (Thiresen)				Opponent Xulu, M (Moyo)
2	2	Tournament 2025 Grantleigh Curro Chess Inter-House				Tournament 2025 Grantleigh Curro Chess Inter-House
		date 2025-07-01	rnd 2	type Rapid	result 1	date 2025-07-01	rnd 3	type Rapid	result 1
		Opponent Kapongo, J (Jediel)				Opponent Currie, J (Josiah)
3	2	Tournament 2024 King Cetshwayo Junior & Intermediate Tournament 2024				Tournament 2025 King Cetshwayo Open
		date 2024-11-02	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Christians, J (Joshua)				Opponent Sabjee, N (Nuhaa)

#	Games	Start				End
1	2	Tournament 2024 King Cetshwayo Junior & Intermediate Tournament 2024				Tournament 2025 King Cetshwayo Open
		date 2024-11-02	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Christians, J (Joshua)				Opponent Sabjee, N (Nuhaa)
2	1	Tournament 2025 King Cetshwayo Anniversary				Tournament 2025 King Cetshwayo Anniversary
		date 2025-04-12	rnd 5	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Van Veru, K (Karli)				Opponent Van Veru, K (Karli)
3	1	Tournament 2025 King Cetshwayo Anniversary				Tournament 2025 King Cetshwayo Anniversary
		date 2025-04-12	rnd 2	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Barnes, N (Nate)				Opponent Barnes, N (Nate)

#	Games	Start				End
1	3	Tournament Grantleigh Chess Inter-House 2025				Tournament Grantleigh Chess Inter-House 2025
		date 2025-03-27	rnd 2	type Rapid	result 1	date 2025-03-27	rnd 4	type Rapid	result 1
		Opponent Naidoo, T (Thiresen)				Opponent Xulu, M (Moyo)
2	2	Tournament 2025 Grantleigh Curro Chess Inter-House				Tournament 2025 Grantleigh Curro Chess Inter-House
		date 2025-07-01	rnd 2	type Rapid	result 1	date 2025-07-01	rnd 3	type Rapid	result 1
		Opponent Kapongo, J (Jediel)				Opponent Currie, J (Josiah)
3	1	Tournament 2025 Grantleigh Curro Chess Inter-House				Tournament 2025 Grantleigh Curro Chess Inter-House
		date 2025-07-01	rnd 5	type Rapid	result 1	date 2025-07-01	rnd 5	type Rapid	result 1
		Opponent Nxumalo, N (Ntandoyenkosi)				Opponent Nxumalo, N (Ntandoyenkosi)

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	Claassen ,N (Noah)	5	0	-425	3	0	-425	2	0	-425	0	0	0
1	Claassen ,N (Noah)	5	1263.9	838.9	3	1220.2	838.9	2	1267.1	838.9	0	0	0
2	Reddy-Jordaan ,L (Luka)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Reddy-Jordaan ,L (Luka)	2	1186.2	761.2	2	1181.6	761.2	0	0	0	0	0	0
3	Mulholland ,L (Luka)	2	2	425	2	2	425	0	0	0	0	0	0
3	Mulholland ,L (Luka)	2	1193.2	1618.2	2	1188.5	1618.2	0	0	0	0	0	0
4	Christians ,J (Joshua)	2	1	0	1	1	425	1	0	-425	0	0	0
4	Christians ,J (Joshua)	2	1194.2	1194.2	1	1200	1619.2	1	1200	769.2	0	0	0
5	Kunene ,H (Hlelolwenkosi)	1	1	425	1	1	425	0	0	0	0	0	0
5	Kunene ,H (Hlelolwenkosi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Ramdhani ,D (Devarsh)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Ramdhani ,D (Devarsh)	1	1211.3	786.3	1	1150	786.3	0	0	0	0	0	0
7	Yenkiah ,J (Josiah)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Yenkiah ,J (Josiah)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Barnes ,N (Nate)	1	1	425	1	1	425	0	0	0	0	0	0
8	Barnes ,N (Nate)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Perumal ,L (Leyton)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Perumal ,L (Leyton)	1	1320.8	895.8	1	1269.2	895.8	0	0	0	0	0	0
10	Rheeder ,E (Ezra)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Rheeder ,E (Ezra)	1	1246.9	821.9	1	1250.1	821.9	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

Biyela, Z (Zululami)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms