Chess South Africa Ratings Database

PLAYER PAGE

Personal

Viviers, J (Juan)

Chess SA id

1150191921

FIDE id

Date of birth

2015-03-25 (U12)

Gender

Male

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

55.6

Junior GPX Points

1273.3

Item	Main	Standard	Rapid	Blitz
Rating	1351.1	1293.4	1322.1	1200
Raw rating	1351.1	1293.4	1322.1	1200
Weighted rating	1272.7	1264.5	1211.8	1200
Weighted performance	1297.6	1234.2	1206.1	0
Floor	912.9	855.7	825.7	700
K-factor	32	36	36	36
Min/Max rating change allowed	133.7	145.2	139.3	165.8
Highest rating	1412.9 2025-08-01	1355.7 2025-08-01	1325.7 2025-07-01	1200 2024-02-01
Highest raw rating	1412.9 2025-08-01	1355.7 2025-08-01	1325.7 2025-07-01	1200 2024-02-01
Highest weighted rating	1401.2 2024-02-01	1264.5 2025-09-30	1325.7 2024-02-01	1200 2024-02-01
Highest weighted performance	1412.9 2025-08-01	1346.1 2024-02-01	1206.1 2025-09-30	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1351.1	1293.4	1322.1	1200
Analysis
Rating	1351.1	1293.4	1322.1	1200
Raw rating	1351.1	1293.4	1322.1	1200
Weighted rating	1272.7	1264.5	1211.8
Weighted performance	1297.6	1234.2	1206.1
K-factor	32	36	36	36
Floor	912.9	855.7	825.7	700
Max/Min rating change allowed	133.7	145.2	139.3	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	1351.1	1293.4	1322.1	1200
New weighted rating	1281.6	1268.9	1221.8	1200
New weighted performance	1297.1	1233.7	1205.7	0
Temp new rating	1351.1	1293.4	1322.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1351.1	1293.4	1322.1	1200
New K-factor	32	36	36	36
New floor	912.9	855.7	825.7	700

Item	Main	Standard	Rapid
	0	0	0
	64	51	13
	22	5	17
	0	0	0
	0	0	0
	0	0	0
History	86	56	30

Games since
	Main 86	Standard 56		Rapid 30		Blitz 0
Gender	Male
Age group	U12
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	2662		359		87
Male	2154		306		76
U12	382		45		13
U12 Male	281		33		10
Standard
	RSA		Province		Region
Overall	3123		433		112
Male	2446		358		93
U12	461		56		20
U12 Male	329		41		15
Rapid
	RSA		Province		Region
Overall	907		62		27
Male	746		52		19
U12	143		5		3
U12 Male	102		3		1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	64	36	56.25	53.1	1316.4	1369.5
Standard	51	25.5	50	0	1312.3	1312.3
Rapid	13	10.5	80.77	261.5	1332.2	1593.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	86	45.5	52.91	24.7	1284.1	1308.8
Standard	56	28	50	0	1299.9	1299.9
Rapid	30	17.5	58.33	70.8	1254.6	1325.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1351.1	1293.4	1322.1	1200
2025-09-01	1412.9	1355.7	1325.7	1200
2025-08-01	1412.9	1355.7	1325.7	1200
2025-07-01	1401.2	1323.8	1325.7	1200
2025-06-01	1315.5	1323.8	1168.7	1200
2025-05-01	1310.2	1319.8	1168.7	1200
2025-04-01	1279.1	1286.8	1168.7	1200
2025-03-01	1219.5	1233.3	1168.7	1200
2025-02-01	1215.6	1238.9	1168.1	1200
2025-01-01	1179.3	1200	1147.6	1200
2024-12-01	1179.3	1200	1147.6	1200
2024-11-01	1179.3	1200	1147.6	1200
2024-10-01	1179.3	1200	1147.6	1200
2024-09-01	1179.3	1200	1147.6	1200
2024-08-01	1179.3	1200	1147.6	1200
2024-07-01	1179.3	1200	1147.6	1200
2024-06-01	1187.6	1200	1181.2	1200
2024-08-01	1176.3	1200	1155.2	1200
2024-04-01	1196	1200	1200	1200
2024-03-01	1196	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	SBDCA Beginners Tournament 2025 (Grade 4 and under)	2025-09-27	2025-09-27	Rapid	Sarah Baartman (ESB)	5	4	2	Yes	Analysis
2	EC Closed 2025 (U12 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	5	0.5	Yes	Analysis
3	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
4	Holiday Fever 2025 (D)	2025-06-25	2025-06-25	Rapid	Sarah Baartman (ESB)	11	9	8.5	Yes	Analysis
5	SBDCA Closed 2025 (U12 Boys)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
6	SBD Trials J Bay 19 April 2025 (U12)	2025-04-19	2025-04-19	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
7	Kouga Mayor's Cup Final 2025 (U11)	2025-04-12	2025-04-12	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
8	Kouga Mayor's Cup 2025 (U11)	2025-03-08	2025-03-08	Standard	Sarah Baartman (ESB)	6	6	4	Yes	Analysis
9	SBDCU Trials 3 2025 (U12)	2025-02-08	2025-02-08	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
10	SBDCU Fundraiser 2025 (U11)	2025-02-01	2025-02-01	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
11	2025 SBDCU Trial 2 JBay (U12)	2025-01-25	2025-01-25	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SBDCA Beginners Tournament 2025 (Grade 4 and under)	2025-09-27	2025-09-27	Rapid	Sarah Baartman (ESB)	5	4	2	Yes	Analysis
2	EC Closed 2025 (U12 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	5	0.5	Yes	Analysis
3	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
4	Holiday Fever 2025 (D)	2025-06-25	2025-06-25	Rapid	Sarah Baartman (ESB)	11	9	8.5	Yes	Analysis
5	SBDCA Closed 2025 (U12 Boys)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
6	SBD Trials J Bay 19 April 2025 (U12)	2025-04-19	2025-04-19	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
7	Kouga Mayor's Cup Final 2025 (U11)	2025-04-12	2025-04-12	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
8	Kouga Mayor's Cup 2025 (U11)	2025-03-08	2025-03-08	Standard	Sarah Baartman (ESB)	6	6	4	Yes	Analysis
9	SBDCU Trials 3 2025 (U12)	2025-02-08	2025-02-08	Standard	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
10	SBDCU Fundraiser 2025 (U11)	2025-02-01	2025-02-01	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
11	2025 SBDCU Trial 2 JBay (U12)	2025-01-25	2025-01-25	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
12	Aston Bay 2024 (Development)	2024-05-25	2024-05-25	Rapid	Sarah Baartman (ESB)	7	6	2	Yes	Analysis
13	Humansdorp CMC Schools Trials 2024 (U9 Boys)	2024-05-10	2024-05-10	Rapid	Sarah Baartman (ESB)	6	5	3	Yes	Analysis
14	Stulting Tournament 2024 (Junior)	2024-04-06	2024-04-06	Rapid	Sarah Baartman (ESB)	6	6	2	Yes	Analysis
15	SBDCU Trial 1 2024 (U10)	2024-02-24	2024-02-24	Standard	Sarah Baartman (ESB)	6	5	2.5	Yes	Analysis

#	Games	Start				End
1	10	Tournament SBDCA Closed 2025				Tournament Holiday Fever 2025
		date 2025-05-10	rnd 6	type Standard	result 1	date 2025-06-25	rnd 11	type Rapid	result 1
		Opponent Mooi, M (Mlungisi Esra)				Opponent Stofile, I (Imkhitha Zidan)
2	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 4	type Standard	result 1
		Opponent Waller, C (Clay)				Opponent Dlepu, I (Inathi)
3	3	Tournament Kouga Mayor's Cup 2025				Tournament Kouga Mayor's Cup 2025
		date 2025-03-08	rnd 3	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Roman, D (Deniequin)				Opponent Mfabana, A (Alunamda)

#	Games	Start				End
1	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 4	type Standard	result 1
		Opponent Waller, C (Clay)				Opponent Dlepu, I (Inathi)
2	3	Tournament Kouga Mayor's Cup 2025				Tournament Kouga Mayor's Cup 2025
		date 2025-03-08	rnd 3	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Roman, D (Deniequin)				Opponent Mfabana, A (Alunamda)
3	3	Tournament SBDCU Trial 1 2024				Tournament 2025 SBDCU Trial 2 JBay
		date 2024-02-24	rnd 5	type Standard	result 1	date 2025-01-25	rnd 1	type Standard	result 1
		Opponent George, C (Cody)				Opponent Mfabana, A (Alunamda)

#	Games	Start				End
1	11	Tournament Holiday Fever 2025				Tournament SBDCA Beginners Tournament 2025
		date 2025-06-25	rnd 1	type Rapid	result 1	date 2025-09-27	rnd 2	type Rapid	result 1
		Opponent Njoko, N (Nicole)				Opponent Ludidi, A (Ayolise)
2	3	Tournament Humansdorp CMC Schools Trials 2024				Tournament Humansdorp CMC Schools Trials 2024
		date 2024-05-10	rnd 1	type Rapid	result 1	date 2024-05-10	rnd 4	type Rapid	result 1
		Opponent Brits, R (Regardt)				Opponent Prinsloo, D (Dawid)
3	2	Tournament Stulting Tournament 2024				Tournament Stulting Tournament 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 3	type Rapid	result 1
		Opponent Snyman, R (Ruan)				Opponent Slater, M (Mark)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Holiday Fever 2025				Tournament Holiday Fever 2025
		date 2025-06-25	rnd 3	type Rapid	result 1	date 2025-06-25	rnd 11	type Rapid	result 1
		Opponent Ludidi, A (Ayolise)				Opponent Stofile, I (Imkhitha Zidan)
2	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 4	type Standard	result 1
		Opponent Waller, C (Clay)				Opponent Dlepu, I (Inathi)
3	3	Tournament Kouga Mayor's Cup 2025				Tournament Kouga Mayor's Cup 2025
		date 2025-03-08	rnd 3	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Roman, D (Deniequin)				Opponent Mfabana, A (Alunamda)

#	Games	Start				End
1	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 4	type Standard	result 1
		Opponent Waller, C (Clay)				Opponent Dlepu, I (Inathi)
2	3	Tournament Kouga Mayor's Cup 2025				Tournament Kouga Mayor's Cup 2025
		date 2025-03-08	rnd 3	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Roman, D (Deniequin)				Opponent Mfabana, A (Alunamda)
3	3	Tournament SBDCU Trial 1 2024				Tournament 2025 SBDCU Trial 2 JBay
		date 2024-02-24	rnd 5	type Standard	result 1	date 2025-01-25	rnd 1	type Standard	result 1
		Opponent George, C (Cody)				Opponent Mfabana, A (Alunamda)

#	Games	Start				End
1	9	Tournament Holiday Fever 2025				Tournament SBDCA Beginners Tournament 2025
		date 2025-06-25	rnd 3	type Rapid	result 1	date 2025-09-27	rnd 2	type Rapid	result 1
		Opponent Ludidi, A (Ayolise)				Opponent Ludidi, A (Ayolise)
2	3	Tournament Humansdorp CMC Schools Trials 2024				Tournament Humansdorp CMC Schools Trials 2024
		date 2024-05-10	rnd 1	type Rapid	result 1	date 2024-05-10	rnd 4	type Rapid	result 1
		Opponent Brits, R (Regardt)				Opponent Prinsloo, D (Dawid)
3	2	Tournament Stulting Tournament 2024				Tournament Stulting Tournament 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 3	type Rapid	result 1
		Opponent Snyman, R (Ruan)				Opponent Slater, M (Mark)

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	Fihlani ,I (Imihle)	6	2	-141.7	4	0.5	-318.8	2	1.5	212.5	0	0	0
1	Fihlani ,I (Imihle)	6	1346.6	1205	4	1335.8	1027.9	2	1252.4	1559.1	0	0	0
2	Leen ,A (Angelo)	5	1	-255	5	1	-255	0	0	0	0	0	0
2	Leen ,A (Angelo)	5	1310.6	1055.6	5	1324.8	1055.6	0	0	0	0	0	0
3	Bruton ,C (Caleb)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
3	Bruton ,C (Caleb)	4	1464.8	1252.3	4	1468.1	1252.3	0	0	0	0	0	0
4	Mfabana ,A (Alunamda)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Mfabana ,A (Alunamda)	3	1354.2	1495.9	3	1370.9	1495.9	0	0	0	0	0	0
5	Louis ,K (Keanu)	3	0	-425	3	0	-425	0	0	0	0	0	0
5	Louis ,K (Keanu)	3	1354.6	929.6	3	1360.1	929.6	0	0	0	0	0	0
6	Ndumela ,B (Bulumko)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Ndumela ,B (Bulumko)	3	1340.5	1482.2	3	1334	1482.2	0	0	0	0	0	0
7	Potgieter ,C (Chanio Cloe)	3	3	425	3	3	425	0	0	0	0	0	0
7	Potgieter ,C (Chanio Cloe)	3	1197.2	1622.2	3	1196.8	1622.2	0	0	0	0	0	0
8	Prinsloo ,E (Emmanuel)	3	3	425	2	2	425	1	1	425	0	0	0
8	Prinsloo ,E (Emmanuel)	3	1250.7	1675.7	2	1274.1	1675.7	1	1155.3	1675.7	0	0	0
9	Ozah ,C (Chinedu)	3	1	-141.7	1	0	-425	2	1	0	0	0	0
9	Ozah ,C (Chinedu)	3	1404.8	1263.2	1	1105.2	979.8	2	1260	1404.8	0	0	0
10	Makwetu ,A (Achumile)	2	1	0	2	1	0	0	0	0	0	0	0
10	Makwetu ,A (Achumile)	2	1568.6	1568.6	2	1560.4	1568.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Viviers, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms