Chess South Africa Ratings Database

PLAYER PAGE

Personal

Schrieber, I (Ian)

Chess SA id

1150323767

FIDE id

Date of birth

2015-07-02 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1231.3	1233.5	1200	1200
Raw rating	1231.3	1233.5	1200	1200
Weighted rating	1204.9	1205.3	1200	1200
Weighted performance	0	0	0	0
Floor	731.3	733.5	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.6	158.1	165.8	165.8
Highest rating	1231.3 2025-09-01	1233.5 2025-09-01	1200 2025-08-01	1200 2025-08-01
Highest raw rating	1231.3 2025-09-01	1233.5 2025-09-01	1200 2025-08-01	1200 2025-08-01
Highest weighted rating	1202.5 2025-09-01	1202.7 2025-09-01	1200 2025-08-01	1200 2025-08-01
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	1231.3	1233.5	1200	1200
Analysis
Rating	1231.3	1233.5	1200	1200
Raw rating	1231.3	1233.5	1200	1200
Weighted rating	1204.9	1205.3	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	731.3	733.5	700	700
Max/Min rating change allowed	158.6	158.1	165.8	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	1231.3	1233.5	1200	1200
New weighted rating	1207.2	1207.7	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1231.3	1233.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1231.3	1233.5	1200	1200
New K-factor	36	36	36	36
New floor	731.3	733.5	700	700

Item	Main	Standard	Rapid
	0	0	0
	9	5	4
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	9	5	4

Games since
	Main 9	Standard 5		Rapid 4		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	9	5.5	61.11	94.4	1213.3	1307.7
Standard	5	3.5	70	170	1193.1	1363.1
Rapid	4	2	50	0	1238.5	1238.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	5.5	61.11	94.4	1213.3	1307.7
Standard	5	3.5	70	170	1193.1	1363.1
Rapid	4	2	50	0	1238.5	1238.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1231.3	1233.5	1200	1200
2025-09-01	1231.3	1233.5	1200	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	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
2024-06-01	1200	1200	1200	1200
2024-08-01	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
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	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
2	Edenvale Germiston Cluster Teams 2025 (U11)	2025-07-25	2025-07-25	Rapid	Ekurhuleni (GE)	6	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
2	Edenvale Germiston Cluster Teams 2025 (U11)	2025-07-25	2025-07-25	Rapid	Ekurhuleni (GE)	6	4	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 0.5	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Griffiths, J (Jonathan)				Opponent Mayila, K (Kamogelo)
2	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 4	type Rapid	result 1	date 2025-07-25	rnd 4	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)
3	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 1	type Rapid	result 1	date 2025-07-25	rnd 1	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)

#	Games	Start				End
1	4	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 0.5	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Griffiths, J (Jonathan)				Opponent Mayila, K (Kamogelo)

#	Games	Start				End
1	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 4	type Rapid	result 1	date 2025-07-25	rnd 4	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)
2	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 1	type Rapid	result 1	date 2025-07-25	rnd 1	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Venter, M (Mckenzie)				Opponent Mayila, K (Kamogelo)
2	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 4	type Rapid	result 1	date 2025-07-25	rnd 4	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)
3	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 1	type Rapid	result 1	date 2025-07-25	rnd 1	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Venter, M (Mckenzie)				Opponent Mayila, K (Kamogelo)

#	Games	Start				End
1	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 4	type Rapid	result 1	date 2025-07-25	rnd 4	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)
2	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 1	type Rapid	result 1	date 2025-07-25	rnd 1	type Rapid	result 1
		Opponent Matlakala, M (Molepo)				Opponent Matlakala, M (Molepo)

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	Matlakala ,M (Molepo)	2	2	425	0	0	0	2	2	425	0	0	0
1	Matlakala ,M (Molepo)	2	1200	1625	0	0	0	2	1200	1625	0	0	0
2	Potgieter ,L (Lienke)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Potgieter ,L (Lienke)	2	1277.1	852.1	0	0	0	2	1200	852.1	0	0	0
3	Mayila ,K (Kamogelo)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mayila ,K (Kamogelo)	1	1199.3	1624.3	1	1199.1	1624.3	0	0	0	0	0	0
4	Moller ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Moller ,L (Logan)	1	1189.7	764.7	1	1186.5	764.7	0	0	0	0	0	0
5	Griffiths ,J (Jonathan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Griffiths ,J (Jonathan)	1	1224.1	1224.1	1	1191.3	1224.1	0	0	0	0	0	0
6	Venter ,M (Mckenzie)	1	1	425	1	1	425	0	0	0	0	0	0
6	Venter ,M (Mckenzie)	1	1152.3	1577.3	1	1200	1577.3	0	0	0	0	0	0
7	Shishi ,A (Amukelani)	1	1	425	1	1	425	0	0	0	0	0	0
7	Shishi ,A (Amukelani)	1	1200	1625	1	1200	1625	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

Schrieber, I (Ian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms