Chess South Africa Ratings Database

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Personal

Viriah, M (Matthew)

Chess SA id

1160190995

FIDE id

Date of birth

2016-03-06 (U10)

Gender

Male

Region

iLembe (KIK)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

64.7

Junior GPX Points

1332.5

Item	Main	Standard	Rapid	Blitz
Rating	1579.8	1556.4	1496.9	1206
Raw rating	1566	1555.6	1448.9	1205.5
Weighted rating	1414.7	1399.9	1352.7	1206
Weighted performance	1579.8	1556.4	1496.9	0
Floor	1066	1055.6	994.7	715
K-factor	32	32	32	36
Min/Max rating change allowed	98.4	99.9	116.3	164.5
Highest rating	1586.6 2023-11-01	1614.2 2023-11-01	1552.7 2025-09-01	1215 2025-03-01
Highest raw rating	1566 2025-09-30	1555.6 2025-09-30	1494.7 2025-09-01	1215 2025-03-01
Highest weighted rating	1414.7 2025-09-30	1399.9 2025-09-30	1352.7 2025-09-30	1215 2025-07-01
Highest weighted performance	1586.6 2023-11-01	1614.2 2023-11-01	1552.7 2025-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	-0.5	-0.5	0.1
New rating	1579.2	1555.8	1496.3	1206.1
Analysis
Rating	1579.8	1556.4	1496.9	1206
Raw rating	1566	1555.6	1448.9	1205.5
Weighted rating	1414.7	1399.9	1352.7
Weighted performance	1579.8	1556.4	1496.9
K-factor	32	32	32	36
Floor	1066	1055.6	994.7	715
Max/Min rating change allowed	98.4	99.9	116.3	164.5
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	1566	1555.6	1448.9	1205.5
New weighted rating	1431.4	1416.4	1364.5	1206.1
New weighted performance	1579.2	1555.8	1496.3	0
Temp new rating	1579.2	1555.8	1496.3	1206.1
Temp new rating +/-	-0.5	-0.5	-0.5	0.1
Final new rating +/-	-0.5	-0.5	-0.5	0.1
New rating	1579.2	1555.8	1496.3	1206.1
New K-factor	32	32	32	36
New floor	1066	1055.6	994.7	715

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	70	42	16	12
	29	12	17	0
	4	4	0	0
	0	0	0	0
	0	0	0	0
History	103	58	33	12

Games since
	Main 103	Standard 58		Rapid 33		Blitz 12
Gender	Male
Age group	U10
Region	iLembe (KIK)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	738		51		3
Male	659		49		3
U10	34		2		1
U10 Male	29		2		1
Standard
	RSA		Province		Region
Overall	812		57		3
Male	715		54		3
U10	40		2		1
U10 Male	34		2		1
Rapid
	RSA		Province		Region
Overall	228		24		4
Male	212		22		4
U10	7		1		1
U10 Male	7		1		1
Blitz
	RSA		Province		Region
Overall	439		29		5
Male	405		27		5
U10	11		1		1
U10 Male	10		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	70	53	75.71	218.6	1329.2	1547.8
Standard	42	33	78.57	242.9	1331.5	1574.3
Rapid	16	13.5	84.38	292.2	1306.3	1598.4
Blitz	12	6.5	54.17	35.4	1352	1387.4
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	103	79.5	77.18	231.1	1295.6	1526.6
Standard	58	46	79.31	249.1	1309.5	1558.7
Rapid	33	27	81.82	270.5	1250.5	1521
Blitz	12	6.5	54.17	35.4	1352	1387.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1566	1555.6	1448.9	1205.5
2025-09-01	1551.6	1507.6	1494.7	1205.5
2025-08-01	1488.7	1470.5	1437.3	1205.5
2025-07-01	1491.2	1470.5	1437.3	1215
2025-06-01	1469.5	1470.5	1369.9	1215
2025-05-01	1470.4	1480.5	1369.9	1215
2025-04-01	1524.5	1545.9	1369.9	1215
2025-03-01	1455.8	1413.1	1369.9	1215
2025-02-01	1415.8	1351.9	1369.9	1200
2025-01-01	1415	1351.9	1369.9	1200
2024-12-01	1318.6	1291.1	1312.7	1200
2024-11-01	1291.7	1267.7	1312.7	1200
2024-10-01	1291.7	1267.7	1312.7	1200
2024-09-01	1275.6	1267.7	1255.8	1200
2024-08-01	1252.3	1267.7	1200	1200
2024-07-01	1252.3	1267.7	1200	1200
2024-06-01	1252.3	1267.7	1200	1200
2024-08-01	1252.3	1267.7	1200	1200
2024-04-01	1252.3	1267.7	1200	1200
2024-03-01	1252.3	1267.7	1200	1200
2024-02-01	1252.3	1267.7	1200	1200
2024-01-01	1252.3	1267.7	1200	1200
2023-12-01	1252.3	1267.7	1200	1200
2023-11-01	1252.3	1267.7	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	2025 Umhlanga Heritage Open (Junior Primary)	2025-09-27	2025-09-27	Standard	Ethekwini (KED)	5	5	5	Yes	Analysis
2	2025 KZN Provincial Trials (U10)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	6	3.5	Yes	Analysis
3	North Coast Term 3 Open 2025	2025-07-28	2025-09-01	Standard	iLembe (KIK)	6	2	2	Yes	Analysis
4	The North Coast Open 2025 (Junior Primary)	2025-08-09	2025-08-09	Standard	iLembe (KIK)	5	5	5	Yes	Analysis
5	2025 Ashton Ballito Chess Champs (Junior Primary)	2025-08-02	2025-08-02	Rapid	iLembe (KIK)	5	5	5	Yes	Analysis
6	Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025	2025-07-18	2025-07-18	Blitz	iLembe (KIK)	5	5	2.5	Yes	Analysis
7	Umhlali Chess Festival 2025 (Grade 2+3)	2025-06-21	2025-06-21	Rapid	iLembe (KIK)	5	5	5	Yes	Analysis
8	2025 KZN Open (C)	2025-05-02	2025-05-04	Standard	Ethekwini (KED)	7	7	5	Yes	Analysis
9	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	4	Yes	Analysis
10	Knight's Quest 2025 (U8+U10)	2025-03-15	2025-03-15	Standard	iLembe (KIK)	5	5	5	Yes	Analysis
11	Salt Rock 60/60 2025 (Boys)	2025-03-01	2025-03-01	Standard	iLembe (KIK)	5	4	2	Yes	Analysis
12	North Coast Blitz Open 2025	2025-02-10	2025-02-10	Blitz	iLembe (KIK)	7	7	4	Yes	Analysis
13	Dr Mhlanga Chess Challenge 2025 (Junior Primary)	2025-02-08	2025-02-08	Standard	iLembe (KIK)	5	5	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Umhlanga Heritage Open (Junior Primary)	2025-09-27	2025-09-27	Standard	Ethekwini (KED)	5	5	5	Yes	Analysis
2	2025 KZN Provincial Trials (U10)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	6	3.5	Yes	Analysis
3	North Coast Term 3 Open 2025	2025-07-28	2025-09-01	Standard	iLembe (KIK)	6	2	2	Yes	Analysis
4	The North Coast Open 2025 (Junior Primary)	2025-08-09	2025-08-09	Standard	iLembe (KIK)	5	5	5	Yes	Analysis
5	2025 Ashton Ballito Chess Champs (Junior Primary)	2025-08-02	2025-08-02	Rapid	iLembe (KIK)	5	5	5	Yes	Analysis
6	Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025	2025-07-18	2025-07-18	Blitz	iLembe (KIK)	5	5	2.5	Yes	Analysis
7	Umhlali Chess Festival 2025 (Grade 2+3)	2025-06-21	2025-06-21	Rapid	iLembe (KIK)	5	5	5	Yes	Analysis
8	2025 KZN Open (C)	2025-05-02	2025-05-04	Standard	Ethekwini (KED)	7	7	5	Yes	Analysis
9	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	4	Yes	Analysis
10	Knight's Quest 2025 (U8+U10)	2025-03-15	2025-03-15	Standard	iLembe (KIK)	5	5	5	Yes	Analysis
11	Salt Rock 60/60 2025 (Boys)	2025-03-01	2025-03-01	Standard	iLembe (KIK)	5	4	2	Yes	Analysis
12	North Coast Blitz Open 2025	2025-02-10	2025-02-10	Blitz	iLembe (KIK)	7	7	4	Yes	Analysis
13	Dr Mhlanga Chess Challenge 2025 (Junior Primary)	2025-02-08	2025-02-08	Standard	iLembe (KIK)	5	5	5	Yes	Analysis
14	Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	5.5	Yes	Analysis
15	Umhlali Preparatory Inter House Chess 2024 (Grade 2)	2024-11-27	2024-11-27	Rapid	iLembe (KIK)	5	5	4.5	Yes	Analysis
16	2024 ILembe Youth Trials (U8+U10)	2024-10-19	2024-10-19	Standard	iLembe (KIK)	5	5	3.5	Yes	Analysis
17	Westville Senior Primary Chess Tournament 2024 (Junior Primary)	2024-09-07	2024-09-07	Rapid	Ethekwini (KED)	7	7	5	Yes	Analysis
18	Ashton International College Chess Champs 2024 (Junior Primary)	2024-08-17	2024-08-17	Rapid	Ethekwini (KED)	5	5	4	Yes	Analysis
19	Umhlali Prep Inter House Chess 2023 (Grade 1)	2023-11-29	2023-11-29	Standard	iLembe (KIK)	4	4	4	Yes	Analysis

#	Games	Start				End
1	13	Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025				Tournament North Coast Term 3 Open 2025
		date 2025-07-18	rnd 5	type Blitz	result 0.5	date 2025-09-01	rnd 6	type Standard	result 1
		Opponent Mkhwanazi, A (Aphile)				Opponent Ndumndum, L (Loyiso)
2	10	Tournament 2025 KZN Open				Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025
		date 2025-05-03	rnd 5	type Standard	result 1	date 2025-07-18	rnd 2	type Blitz	result 1
		Opponent Gumede, N (Ntobeko)				Opponent Ntuli, S (Siphosethu)
3	9	Tournament Umhlali Preparatory Inter House Chess 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-27	rnd 1	type Rapid	result 1	date 2024-12-17	rnd 4	type Standard	result 0.5
		Opponent Button, J (Jem)				Opponent Bantseke, L (Lesedilamodimo)

#	Games	Start				End
1	10	Tournament 2025 KZN Open				Tournament North Coast Term 3 Open 2025
		date 2025-05-03	rnd 5	type Standard	result 1	date 2025-09-01	rnd 6	type Standard	result 1
		Opponent Gumede, N (Ntobeko)				Opponent Ndumndum, L (Loyiso)
2	8	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Salt Rock 60/60 2025
		date 2024-12-18	rnd 6	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Nkabinde, L (Landile)				Opponent Naidoo, S (Shivam)
3	8	Tournament Umhlali Prep Inter House Chess 2023				Tournament 2024 ILembe Youth Trials
		date 2023-11-29	rnd 1	type Standard	result 1	date 2024-10-19	rnd 4	type Standard	result 1
		Opponent Leitch, N (Noa)				Opponent Chen, N (Neo)

#	Games	Start				End
1	16	Tournament Westville Senior Primary Chess Tournament 2024				Tournament 2025 Ashton Ballito Chess Champs
		date 2024-09-07	rnd 7	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Power, A (Amber)				Opponent Gabriels, A (Amrienta)
2	4	Tournament 2025 KZN Provincial Trials				Tournament 2025 KZN Provincial Trials
		date 2025-09-06	rnd 2	type Rapid	result 1	date 2025-09-06	rnd 5	type Rapid	result 0.5
		Opponent Naidoo, T (Thierra)				Opponent Ntshakala, H (Hlelolwenkosi)
3	4	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Westville Senior Primary Chess Tournament 2024
		date 2024-09-07	rnd 2	type Rapid	result 1	date 2024-09-07	rnd 5	type Rapid	result 1
		Opponent Maseko, T (Taddeus)				Opponent Clifford, B (Benedict)

#	Games	Start				End
1	3	Tournament North Coast Blitz Open 2025				Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025
		date 2025-02-10	rnd 7	type Blitz	result 1	date 2025-07-18	rnd 2	type Blitz	result 1
		Opponent Muragijeyesu, D (Daniel)				Opponent Ntuli, S (Siphosethu)
2	3	Tournament North Coast Blitz Open 2025				Tournament North Coast Blitz Open 2025
		date 2025-02-10	rnd 2	type Blitz	result 1	date 2025-02-10	rnd 4	type Blitz	result 1
		Opponent Ndumndum, L (Loyiso)				Opponent Bell, A (Aiden)
3	1	Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025				Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025
		date 2025-07-18	rnd 5	type Blitz	result 0.5	date 2025-07-18	rnd 5	type Blitz	result 0.5
		Opponent Mkhwanazi, A (Aphile)				Opponent Mkhwanazi, A (Aphile)

#	Games	Start				End
1	12	Tournament 2025 Ashton Ballito Chess Champs				Tournament North Coast Term 3 Open 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-09-01	rnd 6	type Standard	result 1
		Opponent Premrajh, H (Himani)				Opponent Ndumndum, L (Loyiso)
2	10	Tournament 2025 KZN Open				Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025
		date 2025-05-03	rnd 5	type Standard	result 1	date 2025-07-18	rnd 2	type Blitz	result 1
		Opponent Gumede, N (Ntobeko)				Opponent Ntuli, S (Siphosethu)
3	7	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Dr Mhlanga Chess Challenge 2025
		date 2024-12-18	rnd 6	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Nkabinde, L (Landile)				Opponent Theunissen, N (Nate)

#	Games	Start				End
1	10	Tournament 2025 KZN Open				Tournament North Coast Term 3 Open 2025
		date 2025-05-03	rnd 5	type Standard	result 1	date 2025-09-01	rnd 6	type Standard	result 1
		Opponent Gumede, N (Ntobeko)				Opponent Ndumndum, L (Loyiso)
2	8	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Salt Rock 60/60 2025
		date 2024-12-18	rnd 6	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Nkabinde, L (Landile)				Opponent Naidoo, S (Shivam)
3	6	Tournament Salt Rock 60/60 2025				Tournament Knight's Quest 2025
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Ramlachan, K (Kairav)				Opponent Chen, N (Neo)

#	Games	Start				End
1	10	Tournament Umhlali Chess Festival 2025				Tournament 2025 Ashton Ballito Chess Champs
		date 2025-06-21	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Chonan, K (Kedhar)				Opponent Gabriels, A (Amrienta)
2	5	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Umhlali Preparatory Inter House Chess 2024
		date 2024-09-07	rnd 7	type Rapid	result 1	date 2024-11-27	rnd 4	type Rapid	result 1
		Opponent Power, A (Amber)				Opponent Wills, P (Paxton)
3	4	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Westville Senior Primary Chess Tournament 2024
		date 2024-09-07	rnd 2	type Rapid	result 1	date 2024-09-07	rnd 5	type Rapid	result 1
		Opponent Maseko, T (Taddeus)				Opponent Clifford, B (Benedict)

#	Games	Start				End
1	3	Tournament North Coast Blitz Open 2025				Tournament Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025
		date 2025-02-10	rnd 7	type Blitz	result 1	date 2025-07-18	rnd 2	type Blitz	result 1
		Opponent Muragijeyesu, D (Daniel)				Opponent Ntuli, S (Siphosethu)
2	3	Tournament North Coast Blitz Open 2025				Tournament North Coast Blitz Open 2025
		date 2025-02-10	rnd 2	type Blitz	result 1	date 2025-02-10	rnd 4	type Blitz	result 1
		Opponent Ndumndum, L (Loyiso)				Opponent Bell, A (Aiden)

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	Chen ,N (Neo)	8	6.5	265.6	4	4	425	4	2.5	106.2	0	0	0
1	Chen ,N (Neo)	8	1317.6	1583.2	4	1210.3	1742.6	4	1370.3	1423.8	0	0	0
2	Maseko ,T (Taddeus)	5	4	255	3	3	425	2	1	0	0	0	0
2	Maseko ,T (Taddeus)	5	1273	1528	3	1237.7	1698	2	1239.8	1273	0	0	0
3	Asghar ,G (Gabriel)	4	4	425	2	2	425	2	2	425	0	0	0
3	Asghar ,G (Gabriel)	4	1276.2	1701.2	2	1225.4	1701.2	2	1296.2	1701.2	0	0	0
4	Asghar ,L (Luca)	3	3	425	3	3	425	0	0	0	0	0	0
4	Asghar ,L (Luca)	3	1324.2	1749.2	3	1251.8	1749.2	0	0	0	0	0	0
5	Power ,A (Amber)	3	2	141.7	2	1	0	1	1	425	0	0	0
5	Power ,A (Amber)	3	1209.5	1351.2	2	1102.5	1209.5	1	1371.7	1634.5	0	0	0
6	Gabriels ,A (Amrienta)	2	2	425	1	1	425	1	1	425	0	0	0
6	Gabriels ,A (Amrienta)	2	1463.2	1888.2	1	1408.8	1888.2	1	1355.7	1888.2	0	0	0
7	Tipping ,K (Kayden)	2	2	425	1	1	425	1	1	425	0	0	0
7	Tipping ,K (Kayden)	2	1283.2	1708.2	1	1236	1708.2	1	1288.6	1708.2	0	0	0
8	Chonan ,K (Kedhar)	2	2	425	1	1	425	1	1	425	0	0	0
8	Chonan ,K (Kedhar)	2	1199.9	1624.9	1	1200	1624.9	1	1200	1624.9	0	0	0
9	Ndumndum ,L (Loyiso)	2	2	425	1	1	425	0	0	0	1	1	425
9	Ndumndum ,L (Loyiso)	2	1131.2	1556.2	1	1178.1	1556.2	0	0	0	1	1200	1556.2
10	Ellender ,A (Asher)	2	0	-425	1	0	-425	0	0	0	1	0	-425
10	Ellender ,A (Asher)	2	1544.6	1119.6	1	1586.9	1119.6	0	0	0	1	1182.8	1119.6

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Viriah, M (Matthew)

Ratings

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Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms