Chess South Africa Ratings Database

PLAYER PAGE

Personal

Onyire, P (Prince)

Chess SA id

1120151135

FIDE id

Date of birth

2012-01-16 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

39.5

Junior GPX Points

1407.9

Item	Main	Standard	Rapid	Blitz
Rating	1515.3	1472.2	1477	1200
Raw rating	1515.3	1472.2	1477	1200
Weighted rating	1480.2	1415.7	1454.8	1200
Weighted performance	1411.4	1346.6	1302.9	0
Floor	1015.3	972.2	977	700
K-factor	32	32	32	36
Min/Max rating change allowed	105.8	112.5	111.7	165.8
Highest rating	1522 2024-04-01	1723.9 2024-02-01	1477.2 2024-04-01	1200 2018-10-01
Highest raw rating	1515.3 2025-11-01	1472.2 2025-11-01	1477 2025-08-01	1200 2024-02-01
Highest weighted rating	1480.2 2025-11-01	1415.7 2025-11-01	1438.8 2025-08-01	1200 2018-10-01
Highest weighted performance	1522 2024-04-01	1723.9 2024-02-01	1477.2 2024-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	27.9	37.8	0	0
New rating	1543.2	1509.9	1477	1200
Analysis
Rating	1515.3	1472.2	1477	1200
Raw rating	1515.3	1472.2	1477	1200
Weighted rating	1480.2	1415.7	1454.8
Weighted performance	1411.4	1346.6	1302.9
K-factor	32	32	32	36
Floor	1015.3	972.2	977	700
Max/Min rating change allowed	105.8	112.5	111.7	165.8
Games	5	5	0	0
Score	5	5	0	0
Expected score	4.13	3.82	0	0
Score-Expected	0.87	1.18	0	0
Temp raw +/-	27.9	37.8	0	0
Final raw +/-	27.9	37.8	0	0
New raw rating	1543.2	1509.9	1477	1200
New weighted rating	1487.7	1426.1	1458.8	1200
New weighted performance	1504.1	1459.2	1294.1	0
Temp new rating	1543.2	1509.9	1477	1200
Temp new rating +/-	27.9	37.8	0	0
Final new rating +/-	27.9	37.8	0	0
New rating	1543.2	1509.9	1477	1200
New K-factor	32	32	32	36
New floor	1043.2	1009.9	977	700

Item	Main	Standard	Rapid
	0	0	0
	27	22	5
	43	27	16
	15	0	15
	0	0	0
	0	0	0
History	85	49	36

Games since
	Main 75	Standard 49		Rapid 26		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1167		365		209
Male	1010		313		177
U14	160		51		24
U14 Male	128		40		20
Standard
	RSA		Province		Region
Overall	1417		389		211
Male	1192		317		176
U14	200		64		27
U14 Male	154		46		21
Rapid
	RSA		Province		Region
Overall	282		137		71
Male	255		124		68
U14	40		25		12
U14 Male	33		20		11
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	27	20.5	75.93	220.4	1313.5	1533.9
Standard	22	16.5	75	212.5	1311.9	1524.4
Rapid	5	4	80	255	1320.9	1575.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	85	63.5	74.71	210	1303.1	1513.1
Standard	49	37	75.51	216.8	1320.9	1537.7
Rapid	36	26.5	73.61	200.7	1278.9	1479.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1515.3	1472.2	1477	1200
2025-09-30	1515	1461.9	1477	1200
2025-09-01	1515	1461.9	1477	1200
2025-08-01	1497.6	1434.1	1477	1200
2025-07-01	1486.4	1434.1	1458.3	1200
2025-06-01	1470.8	1409.6	1458.3	1200
2025-05-01	1470.8	1409.6	1458.3	1200
2025-04-01	1470.8	1409.6	1458.3	1200
2025-03-01	1470.8	1409.6	1458.3	1200
2025-02-01	1497.7	1435.2	1458.3	1200
2025-01-01	1482.5	1413.5	1458.3	1200
2024-12-01	1470.3	1391.9	1458.3	1200
2024-11-01	1470.3	1391.9	1458.3	1200
2024-10-01	1479.3	1398.7	1458.3	1200
2024-09-01	1479.3	1398.7	1458.3	1200
2024-08-01	1479.3	1398.7	1458.3	1200
2024-07-01	1479.3	1398.7	1458.3	1200
2024-09-01	1464.3	1356.6	1458.3	1200
2024-05-01	1446.7	1356.6	1354.8	1200
2024-04-01	1437.7	1356.6	1317.4	1200
2024-03-01	1359.2	1312	1317.4	1200
2024-02-01	1270.5	1200	1317.4	1200
2024-01-01	1270.5	1200	1317.4	1200
2023-12-01	1270.5	1200	1317.4	1200

Comming soon.

Tournaments

History

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Gordons Bay Primary Chess Championship 2025 (U13 Boys)	2025-10-25	2025-10-25	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Gordons Bay Primary Chess Championship 2025 (U13 Boys)	2025-10-25	2025-10-25	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
2	Grant East Annual Primary School Invitational Chess Tournament 2025 (U13 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
3	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	3	3	Yes	Analysis
4	Gordons Bay Library Chess Tournament 2025 (U13)	2025-07-26	2025-07-26	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
5	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	3	Yes	Analysis
6	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
7	Helderberg Chess Club PS Development Tournament 2025 (U13 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Gordons Bay Primary Chess Championship 2025 (U13 Boys)	2025-10-25	2025-10-25	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
2	Grant East Annual Primary School Invitational Chess Tournament 2025 (U13 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
3	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	3	3	Yes	Analysis
4	Gordons Bay Library Chess Tournament 2025 (U13)	2025-07-26	2025-07-26	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
5	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	3	3	Yes	Analysis
6	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
7	Helderberg Chess Club PS Development Tournament 2025 (U13 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
8	Gordons Bay Primary Chess Championship 2024 (U13)	2024-11-09	2024-11-09	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
9	Grant East Annual Primary School Invitational Chess Tournament 2024 (U13)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
10	Cape Town Chess Federation Closed Chess Championships 2024 (U14)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
11	Cape Town Junior League Finals 2024 (U13 Open A)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	5	5	2.5	Yes	Analysis
12	Cape Town Junior League - Qualifier 2 2024 (U13)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
13	Cape Town Junior League Qualifier 2024 (U13 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	5	4	Yes	Analysis
14	Cape Town Metro Schools Chess Closed Individuals 2024 (U13 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
15	CT District East Schools Chess Individuals Trails 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
16	Gordons Bay Primary Chess Championship 2023 (U11 Mixed)	2023-12-09	2023-12-09	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
17	CT Metro District East Top Schools Chess 2023 (U11 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	7	5	4	Yes	Analysis
18	Mary-Anne Bartels Chess Tournament 2023 (U11)	2023-02-21	2023-02-21	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Gordons Bay Primary Chess Championship 2023				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2023-12-09	rnd 2	type Rapid	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Maseka, I (Isaac)				Opponent Yoon, YJ (Yea Jun)
2	7	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Grant East Annual Primary School Invitational Chess Tournament 2025
		date 2025-07-26	rnd 5	type Rapid	result 1	date 2025-10-18	rnd 3	type Standard	result 0.5
		Opponent Pathan, T (Taha)				Opponent Rule, L (Liam)
3	6	Tournament Cape Town Chess Junior League 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Mertz, K (Kian)				Opponent Webb, A (Amori)

#	Games	Start				End
1	6	Tournament Cape Town Chess Junior League 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Mertz, K (Kian)				Opponent Chilumba, C (Cornelius)
2	5	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-06-15	rnd 3	type Standard	result 1	date 2024-10-05	rnd 1	type Standard	result 1
		Opponent Berry, S (Seth)				Opponent De Villiers, J (Jean-Pierre)
3	5	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Cloete, J (Jacqueswin)				Opponent Yoon, YJ (Yea Jun)

#	Games	Start				End
1	7	Tournament Gordons Bay Primary Chess Championship 2023				Tournament Cape Town Junior League Qualifier 2024
		date 2023-12-09	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 4	type Rapid	result 1
		Opponent Maseka, I (Isaac)				Opponent Mrululu, A (Amila)
2	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-04-20	rnd 5	type Rapid	result 1	date 2024-05-18	rnd 2	type Rapid	result 1
		Opponent Haman, R (Rico)				Opponent Shasha, I (Iyanda)
3	4	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-06	rnd 6	type Rapid	result 1	date 2024-04-20	rnd 3	type Rapid	result 1
		Opponent Kirthan, V (Venya)				Opponent Fani, K (Khazimla)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Gordons Bay Primary Chess Championship 2023				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2023-12-09	rnd 2	type Rapid	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Maseka, I (Isaac)				Opponent Yoon, YJ (Yea Jun)
2	6	Tournament Cape Town Chess Junior League 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Mertz, K (Kian)				Opponent Webb, A (Amori)
3	5	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-03-03	rnd 5	type Standard	result 1	date 2024-04-06	rnd 4	type Rapid	result 1
		Opponent Okonji, J (Joshua)				Opponent Mrululu, A (Amila)

#	Games	Start				End
1	6	Tournament Cape Town Chess Junior League 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Mertz, K (Kian)				Opponent Chilumba, C (Cornelius)
2	5	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Cloete, J (Jacqueswin)				Opponent Yoon, YJ (Yea Jun)
3	4	Tournament Gordons Bay Primary Chess Championship 2024				Tournament Helderberg Chess Club PS Development Tournament 2025
		date 2024-11-09	rnd 5	type Standard	result 1	date 2025-01-25	rnd 3	type Standard	result 1
		Opponent Webb, A (Amori)				Opponent Bessesen, J (Joakim)

#	Games	Start				End
1	7	Tournament Gordons Bay Primary Chess Championship 2023				Tournament Cape Town Junior League Qualifier 2024
		date 2023-12-09	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 4	type Rapid	result 1
		Opponent Maseka, I (Isaac)				Opponent Mrululu, A (Amila)
2	4	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-06	rnd 6	type Rapid	result 1	date 2024-04-20	rnd 3	type Rapid	result 1
		Opponent Kirthan, V (Venya)				Opponent Fani, K (Khazimla)
3	3	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-07-26	rnd 1	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent De Wee, E (Ethan)				Opponent Webb, A (Amori)

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	Webb ,A (Amori)	4	4	425	2	2	425	2	2	425	0	0	0
1	Webb ,A (Amori)	4	1263.9	1688.9	2	1263.1	1688.9	2	1232.2	1688.9	0	0	0
2	Akpagu ,M (Muna)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
2	Akpagu ,M (Muna)	3	1261.1	1544.4	2	1207.4	1473.6	1	1281.4	1686.1	0	0	0
3	Rule ,L (Liam)	2	1	0	2	1	0	0	0	0	0	0	0
3	Rule ,L (Liam)	2	1550.4	1550.4	2	1538.2	1550.4	0	0	0	0	0	0
4	Matima ,A (Aiden)	2	1	0	2	1	0	0	0	0	0	0	0
4	Matima ,A (Aiden)	2	1451.5	1451.5	2	1413.2	1451.5	0	0	0	0	0	0
5	Arendse ,V (Virgil)	2	1	0	2	1	0	0	0	0	0	0	0
5	Arendse ,V (Virgil)	2	1362.1	1362.1	2	1313.8	1362.1	0	0	0	0	0	0
6	Smith ,T (Tyler)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Smith ,T (Tyler)	2	1408.8	983.8	2	1402.3	983.8	0	0	0	0	0	0
7	Ruiters ,C (Cade)	2	1	0	1	0	-425	1	1	425	0	0	0
7	Ruiters ,C (Cade)	2	1394.4	1394.4	1	1444.5	969.4	1	1212.6	1819.4	0	0	0
8	Niemann ,J (Jandre)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Niemann ,J (Jandre)	2	1354	929	1	1288.5	929	1	1384.2	929	0	0	0
9	Kruger ,D (Dawid)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Kruger ,D (Dawid)	2	1500.7	1075.7	1	1453.6	1075.7	1	1388.7	1075.7	0	0	0
10	Baard ,R (Riedewaan)	2	1	0	0	0	0	2	1	0	0	0	0
10	Baard ,R (Riedewaan)	2	1234.6	1234.6	0	0	0	2	1236.1	1234.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Onyire, P (Prince)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms