Chess South Africa Ratings Database

PLAYER PAGE

Personal

Blecher, D (Doah)

Chess SA id

1150314512

FIDE id

Date of birth

2015-01-25 (U12)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1214.8	1200	1245.1	1200
Raw rating	1214.8	1200	1245.1	1200
Weighted rating	1209.3	1200	1227.1	1200
Weighted performance	0	0	0	0
Floor	722.7	700	745.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.3	165.8	155.5	165.8
Highest rating	1222.7 2025-03-01	1200 2025-03-01	1245.1 2025-03-01	1200 2025-03-01
Highest raw rating	1222.7 2025-03-01	1200 2025-03-01	1245.1 2025-03-01	1200 2025-03-01
Highest weighted rating	1206.9 2025-08-01	1200 2025-03-01	1219.4 2025-08-01	1200 2025-03-01
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	1214.8	1200	1245.1	1200
Analysis
Rating	1214.8	1200	1245.1	1200
Raw rating	1214.8	1200	1245.1	1200
Weighted rating	1209.3	1200	1227.1
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	722.7	700	745.1	700
Max/Min rating change allowed	162.3	165.8	155.5	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	1214.8	1200	1245.1	1200
New weighted rating	1210	1200	1229.3	1200
New weighted performance	0	0	0	0
Temp new rating	1214.8	1200	1245.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1214.8	1200	1245.1	1200
New K-factor	36	36	36	36
New floor	722.7	700	745.1	700

Item	Main	Standard	Rapid
	0	0	0
	10	5	5
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	10	5	5

Games since
	Main 10	Standard 5		Rapid 5		Blitz 0
Gender	Male
Age group	U12
Region	Johannesburg Metro (GJM)
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	10	5.5	55	42.5	1256.2	1298.8
Standard	5	2	40	-85	1270.5	1185.5
Rapid	5	3.5	70	170	1242	1412
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	5.5	55	42.5	1256.2	1298.8
Standard	5	2	40	-85	1270.5	1185.5
Rapid	5	3.5	70	170	1242	1412
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1214.8	1200	1245.1	1200
2025-09-30	1214.8	1200	1245.1	1200
2025-09-01	1214.8	1200	1245.1	1200
2025-08-01	1214.8	1200	1245.1	1200
2025-07-01	1214.8	1200	1245.1	1200
2025-06-01	1214.8	1200	1245.1	1200
2025-05-01	1214.8	1200	1245.1	1200
2025-04-01	1214.8	1199.8	1245.1	1200
2025-03-01	1222.7	1200	1245.1	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	Chess Power House March Open 2025 (D)	2025-03-22	2025-03-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	Chess Power House Feb Rapid 2025 (C)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Power House March Open 2025 (D)	2025-03-22	2025-03-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	Chess Power House Feb Rapid 2025 (C)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 3	type Rapid	result 0.5
		Opponent Serrao, C (Charles)				Opponent Treger, N (Neima)
2	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House March Open 2025
		date 2025-02-02	rnd 5	type Rapid	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Treger, N (Nava)				Opponent Ngwenya, E (Evelyn)
3	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 3	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Njozela, Q (Qalokuhle)				Opponent Njozela, Q (Qalokuhle)

#	Games	Start				End
1	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 3	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Njozela, Q (Qalokuhle)				Opponent Njozela, Q (Qalokuhle)
2	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Ngwenya, E (Evelyn)				Opponent Ngwenya, E (Evelyn)

#	Games	Start				End
1	3	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 3	type Rapid	result 0.5
		Opponent Serrao, C (Charles)				Opponent Treger, N (Neima)
2	1	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 5	type Rapid	result 1	date 2025-02-02	rnd 5	type Rapid	result 1
		Opponent Treger, N (Nava)				Opponent Treger, N (Nava)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House March Open 2025
		date 2025-02-02	rnd 5	type Rapid	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Treger, N (Nava)				Opponent Ngwenya, E (Evelyn)
2	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 2	type Rapid	result 1
		Opponent Serrao, C (Charles)				Opponent Gerschlowitz, E (Ethan)
3	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 3	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Njozela, Q (Qalokuhle)				Opponent Njozela, Q (Qalokuhle)

#	Games	Start				End
1	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 3	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Njozela, Q (Qalokuhle)				Opponent Njozela, Q (Qalokuhle)
2	1	Tournament Chess Power House March Open 2025				Tournament Chess Power House March Open 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Ngwenya, E (Evelyn)				Opponent Ngwenya, E (Evelyn)

#	Games	Start				End
1	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 2	type Rapid	result 1
		Opponent Serrao, C (Charles)				Opponent Gerschlowitz, E (Ethan)
2	1	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 5	type Rapid	result 1	date 2025-02-02	rnd 5	type Rapid	result 1
		Opponent Treger, N (Nava)				Opponent Treger, N (Nava)

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	Ngwenya ,E (Evelyn)	1	1	425	1	1	425	0	0	0	0	0	0
1	Ngwenya ,E (Evelyn)	1	1198.8	1623.8	1	1199.4	1623.8	0	0	0	0	0	0
2	Xaba ,S (Sweli)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Xaba ,S (Sweli)	1	1253.1	828.1	1	1254	828.1	0	0	0	0	0	0
3	Njozela ,Q (Qalokuhle)	1	1	425	1	1	425	0	0	0	0	0	0
3	Njozela ,Q (Qalokuhle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Su ,C (Chloe)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Su ,C (Chloe)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Kuchibhotla ,AKA (Achyuta Kartikeya Arjun)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Kuchibhotla ,AKA (Achyuta Kartikeya Arjun)	1	1500.7	1075.7	1	1552.4	1075.7	0	0	0	0	0	0
6	Gerschlowitz ,E (Ethan)	1	1	425	0	0	0	1	1	425	0	0	0
6	Gerschlowitz ,E (Ethan)	1	1215.2	1640.2	0	0	0	1	1200	1640.2	0	0	0
7	Treger ,N (Nava)	1	1	425	0	0	0	1	1	425	0	0	0
7	Treger ,N (Nava)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Treger ,N (Neima)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Treger ,N (Neima)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
9	Serrao ,C (Charles)	1	1	425	0	0	0	1	1	425	0	0	0
9	Serrao ,C (Charles)	1	1290.5	1715.5	0	0	0	1	1245.6	1715.5	0	0	0
10	Ress ,Z (Ze-Ev Meir)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Ress ,Z (Ze-Ev Meir)	1	1304.5	879.5	0	0	0	1	1299.6	879.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Blecher, D (Doah)

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