Chess South Africa Ratings Database

PLAYER PAGE

Personal

Subroyan, I (Isaac)

Chess SA id

1150319302

FIDE id

Date of birth

2015-10-07 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1230.5	1204.7	1241.8	1200
Raw rating	1230.5	1204.7	1241.8	1200
Weighted rating	1208.2	1202.3	1209.6	1200
Weighted performance	0	0	0	0
Floor	730.5	704.7	741.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.8	164.7	156.2	165.8
Highest rating	1230.5 2025-09-01	1204.7 2025-05-05	1241.8 2025-09-01	1200 2025-05-05
Highest raw rating	1230.5 2025-09-01	1204.7 2025-05-05	1241.8 2025-09-01	1200 2025-05-05
Highest weighted rating	1203.7 2025-09-01	1201.4 2025-08-01	1203.3 2025-09-01	1200 2025-05-05
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1230.5	1204.7	1241.8	1200
Analysis
Rating	1230.5	1204.7	1241.8	1200
Raw rating	1230.5	1204.7	1241.8	1200
Weighted rating	1208.2	1202.3	1209.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	730.5	704.7	741.8	700
Max/Min rating change allowed	158.8	164.7	156.2	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	1230.5	1204.7	1241.8	1200
New weighted rating	1210.3	1202.6	1212.5	1200
New weighted performance	0	0	0	0
Temp new rating	1230.5	1204.7	1241.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1230.5	1204.7	1241.8	1200
New K-factor	36	36	36	36
New floor	730.5	704.7	741.8	700

Item	Main	Standard	Rapid
	0	0	0
	11	5	6
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	11	5	6

Games since
	Main 11	Standard 5		Rapid 6		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-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	11	6.5	59.09	77.3	1218.4	1295.7
Standard	5	2.5	50	0	1216.2	1216.2
Rapid	6	4	66.67	141.7	1220.2	1361.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	6.5	59.09	77.3	1218.4	1295.7
Standard	5	2.5	50	0	1216.2	1216.2
Rapid	6	4	66.67	141.7	1220.2	1361.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1230.5	1204.7	1241.8	1200
2025-09-30	1230.5	1204.7	1241.8	1200
2025-09-01	1230.5	1204.7	1241.8	1200
2025-08-01	1204.5	1204.7	1200	1200
2025-07-01	1204.5	1204.7	1200	1200
2025-06-01	1204.5	1204.7	1200	1200
2025-05-01	1204.5	1204.7	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	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	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	4	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	4	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Coetzee, S (Stian)				Opponent Shuping, B (Blessing)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Wepener, N (Nathan)				Opponent Gouws, L (Luca)
3	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 0.5	date 2025-04-12	rnd 4	type Standard	result 0.5
		Opponent Olivier, T (Tiaan)				Opponent Olivier, T (Tiaan)

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Wepener, N (Nathan)				Opponent Gouws, L (Luca)
2	1	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 0.5	date 2025-04-12	rnd 4	type Standard	result 0.5
		Opponent Olivier, T (Tiaan)				Opponent Olivier, T (Tiaan)

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Coetzee, S (Stian)				Opponent Shuping, B (Blessing)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Coetzee, S (Stian)				Opponent Shuping, B (Blessing)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Wepener, N (Nathan)				Opponent Gouws, L (Luca)

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 1	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Wepener, N (Nathan)				Opponent Gouws, L (Luca)

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 6	type Rapid	result 1
		Opponent Coetzee, S (Stian)				Opponent Shuping, B (Blessing)

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	Venter ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Venter ,L (Luan)	1	1278.3	853.3	1	1250	853.3	0	0	0	0	0	0
2	Wepener ,N (Nathan)	1	1	425	1	1	425	0	0	0	0	0	0
2	Wepener ,N (Nathan)	1	1199.8	1624.8	1	1200	1624.8	0	0	0	0	0	0
3	Moutafis ,A (Andoni)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Moutafis ,A (Andoni)	1	1229.6	804.6	1	1219	804.6	0	0	0	0	0	0
4	Gouws ,L (Luca)	1	1	425	1	1	425	0	0	0	0	0	0
4	Gouws ,L (Luca)	1	1177	1602	1	1200	1602	0	0	0	0	0	0
5	Olivier ,T (Tiaan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Olivier ,T (Tiaan)	1	1196.4	1196.4	1	1196.4	1196.4	0	0	0	0	0	0
6	Coetzee ,S (Stian)	1	1	425	0	0	0	1	1	425	0	0	0
6	Coetzee ,S (Stian)	1	1199.9	1624.9	0	0	0	1	1200	1624.9	0	0	0
7	Shuping ,B (Blessing)	1	1	425	0	0	0	1	1	425	0	0	0
7	Shuping ,B (Blessing)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Mans ,Z (Zander)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Mans ,Z (Zander)	1	1215.6	790.6	0	0	0	1	1221.2	790.6	0	0	0
9	Michel ,N (Nazario)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Michel ,N (Nazario)	1	1305.4	880.4	0	0	0	1	1244.8	880.4	0	0	0
10	Muungani ,C (Christiana)	1	1	425	0	0	0	1	1	425	0	0	0
10	Muungani ,C (Christiana)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Subroyan, I (Isaac)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms