Chess South Africa Ratings Database

PLAYER PAGE

Personal

Blumenow, Z (Zachary)

Chess SA id

1110305795

FIDE id

Date of birth

2011-02-11 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1179.8	1174.2	1200	1200
Raw rating	1179.8	1174.2	1200	1200
Weighted rating	1176.9	1170.5	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.7	172	165.8	165.8
Highest rating	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01
Highest raw rating	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01
Highest weighted rating	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01	1200 2024-06-01
Highest weighted performance	1200 2025-01-01	1200 2025-01-01	1200 2024-06-01	1200 2024-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1179.8	1174.2	1200	1200
Analysis
Rating	1179.8	1174.2	1200	1200
Raw rating	1179.8	1174.2	1200	1200
Weighted rating	1176.9	1170.5	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	170.7	172	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	1179.8	1174.2	1200	1200
New weighted rating	1176.9	1170.5	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1179.8	1174.2	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1179.8	1174.2	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	15	15
	0	0
	0	0
	0	0
History	15	15

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	6	40	-85	1207.8	1122.8
Standard	15	6	40	-85	1207.8	1122.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1179.8	1174.2	1200	1200
2025-09-30	1179.8	1174.2	1200	1200
2025-09-01	1179.8	1174.2	1200	1200
2025-08-01	1179.8	1174.2	1200	1200
2025-07-01	1179.8	1174.2	1200	1200
2025-06-01	1179.8	1174.2	1200	1200
2025-05-01	1179.8	1174.2	1200	1200
2025-04-01	1179.8	1174.2	1200	1200
2025-03-01	1179.8	1174.2	1200	1200
2025-02-01	1179	1173.1	1200	1200
2025-01-01	1159.9	1148.8	1200	1200
2024-12-01	1159.9	1148.8	1200	1200
2024-11-01	1159.9	1148.8	1200	1200
2024-10-01	1159.9	1148.8	1200	1200
2024-09-01	1159.9	1148.8	1200	1200
2024-08-01	1159.9	1148.8	1200	1200
2024-07-01	1175.8	1168.8	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

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2024 Midstream College Open Chess Tournament (B1)	2024-07-20	2024-07-20	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	Menlopark Open Chess Tournament 2024 (C)	2024-07-13	2024-07-13	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (D)	2024-06-01	2024-06-01	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section				Tournament Menlopark Open Chess Tournament 2024
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-07-13	rnd 2	type Standard	result 1
		Opponent Matimelane, T (Tshimologo)				Opponent Da Costa, E (Ethan)
2	1	Tournament 2024 Midstream College Open Chess Tournament				Tournament 2024 Midstream College Open Chess Tournament
		date 2024-07-20	rnd 3	type Standard	result 0.5	date 2024-07-20	rnd 3	type Standard	result 0.5
		Opponent Fokker, CD (Christiaan Dirk)				Opponent Fokker, CD (Christiaan Dirk)
3	1	Tournament 2024 Midstream College Open Chess Tournament				Tournament 2024 Midstream College Open Chess Tournament
		date 2024-07-20	rnd 1	type Standard	result 0.5	date 2024-07-20	rnd 1	type Standard	result 0.5
		Opponent Shen Yu, C (Caroline)				Opponent Shen Yu, C (Caroline)

#	Games	Start				End
1	4	Tournament 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section				Tournament Menlopark Open Chess Tournament 2024
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-07-13	rnd 2	type Standard	result 1
		Opponent Matimelane, T (Tshimologo)				Opponent Da Costa, E (Ethan)
2	1	Tournament 2024 Midstream College Open Chess Tournament				Tournament 2024 Midstream College Open Chess Tournament
		date 2024-07-20	rnd 3	type Standard	result 0.5	date 2024-07-20	rnd 3	type Standard	result 0.5
		Opponent Fokker, CD (Christiaan Dirk)				Opponent Fokker, CD (Christiaan Dirk)
3	1	Tournament 2024 Midstream College Open Chess Tournament				Tournament 2024 Midstream College Open Chess Tournament
		date 2024-07-20	rnd 1	type Standard	result 0.5	date 2024-07-20	rnd 1	type Standard	result 0.5
		Opponent Shen Yu, C (Caroline)				Opponent Shen Yu, C (Caroline)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 1	type Standard	result 1	date 2024-07-13	rnd 2	type Standard	result 1
		Opponent Mashele, N (Naledi)				Opponent Da Costa, E (Ethan)
2	1	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 4	type Standard	result 1	date 2024-07-13	rnd 4	type Standard	result 1
		Opponent De Kock, L (Lana)				Opponent De Kock, L (Lana)
3	1	Tournament 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section				Tournament 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-06-01	rnd 4	type Standard	result 1
		Opponent Matimelane, T (Tshimologo)				Opponent Matimelane, T (Tshimologo)

#	Games	Start				End
1	2	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 1	type Standard	result 1	date 2024-07-13	rnd 2	type Standard	result 1
		Opponent Mashele, N (Naledi)				Opponent Da Costa, E (Ethan)
2	1	Tournament Menlopark Open Chess Tournament 2024				Tournament Menlopark Open Chess Tournament 2024
		date 2024-07-13	rnd 4	type Standard	result 1	date 2024-07-13	rnd 4	type Standard	result 1
		Opponent De Kock, L (Lana)				Opponent De Kock, L (Lana)
3	1	Tournament 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section				Tournament 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section
		date 2024-06-01	rnd 4	type Standard	result 1	date 2024-06-01	rnd 4	type Standard	result 1
		Opponent Matimelane, T (Tshimologo)				Opponent Matimelane, T (Tshimologo)

No games found.

#	Games	Start				End

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	Shen Yu ,C (Caroline)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Shen Yu ,C (Caroline)	1	1284.6	1284.6	1	1287.4	1284.6	0	0	0	0	0	0
2	Matimelane ,T (Tshimologo)	1	1	425	1	1	425	0	0	0	0	0	0
2	Matimelane ,T (Tshimologo)	1	1116	1541	1	1098.4	1541	0	0	0	0	0	0
3	Huang ,W (Wei Ting)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Huang ,W (Wei Ting)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	De Kock ,L (Lana)	1	1	425	1	1	425	0	0	0	0	0	0
4	De Kock ,L (Lana)	1	1116.6	1541.6	1	1101.7	1541.6	0	0	0	0	0	0
5	Da Costa ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Da Costa ,E (Ethan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	De Klerk ,W (Wihan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	De Klerk ,W (Wihan)	1	1228.1	803.1	1	1235.8	803.1	0	0	0	0	0	0
7	Kgwale ,O (Obotegile)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kgwale ,O (Obotegile)	1	1282	857	1	1290.6	857	0	0	0	0	0	0
8	Ndebele ,AT (Akhumzi Thandolwenkosi)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ndebele ,AT (Akhumzi Thandolwenkosi)	1	1279	854	1	1260.5	854	0	0	0	0	0	0
9	Long ,J (Jianyu)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Long ,J (Jianyu)	1	1218.4	793.4	1	1221.6	793.4	0	0	0	0	0	0
10	Kluge ,J (John)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Kluge ,J (John)	1	1236.7	1236.7	1	1219.4	1236.7	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

Blumenow, Z (Zachary)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms