Chess South Africa Ratings Database

PLAYER PAGE

Personal

Blumberg, R (Ryker)

Chess SA id

1140146155

FIDE id

Date of birth

2014-11-04 (U14)

Gender

Male

Region

iLembe (KIK)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-11-17

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1135.7	1186.6	1160	1182
Raw rating	1129	1156.8	1160	1085.2
Weighted rating	1135.7	1186.6	1118.3	1182
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	183.5	176.3	175.5	195.3
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2024-02-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-02-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.6	-2.7	0	-8.4
New rating	1135	1183.9	1160	1173.6
Analysis
Rating	1135.7	1186.6	1160	1182
Raw rating	1129	1156.8	1160	1085.2
Weighted rating	1135.7	1186.6	1118.3
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	183.5	176.3	175.5	195.3
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	1129	1156.8	1160	1085.2
New weighted rating	1135	1183.9	1122.2	1173.6
New weighted performance	0	0	0	0
Temp new rating	1135	1183.9	1160	1173.6
Temp new rating +/-	-0.6	-2.7	0	-8.4
Final new rating +/-	-0.6	-2.7	0	-8.4
New rating	1135	1183.9	1160	1173.6
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	15	4	5	6
	10	5	5	0
	6	0	6	0
	0	0	0	0
	0	0	0	0
History	31	9	16	6

Games since
	Main 25	Standard 9		Rapid 10		Blitz 6
Gender	Male
Age group	U12
Region	iLembe (KIK)
Province	KwaZulu Natal (KZ)
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	15	3	20	-255	1352.8	1097.8
Standard	4	0	0	-425	1388.3	963.3
Rapid	5	3	60	85	1292.5	1377.5
Blitz	6	0	0	-425	1379.5	954.5
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	31	6.5	20.97	-246.8	1269.4	1022.7
Standard	9	1	11.11	-330.6	1246.9	916.3
Rapid	16	5.5	34.38	-132.8	1240.8	1108
Blitz	6	0	0	-425	1379.5	954.5

Date	Main	Standard	Rapid	Blitz
2026-01-01	1129	1156.8	1160	1085.2
2025-11-30	1129	1156.8	1160	1085.2
2025-11-01	1165.4	1193.5	1160	1200
2025-09-30	1135.8	1193.5	1106.4	1200
2025-09-01	1135.8	1193.5	1106.4	1200
2025-08-01	1135.8	1193.5	1106.4	1200
2025-07-01	1135.8	1193.5	1106.4	1200
2025-06-01	1135.8	1193.5	1106.4	1200
2025-05-01	1135.8	1193.5	1106.4	1200
2025-04-01	1135.8	1193.5	1106.4	1200
2025-03-01	1135.8	1193.4	1106.4	1200
2025-02-01	1132	1189.5	1106.4	1200
2025-01-01	1077.1	1133	1106.4	1200
2024-12-01	1140.3	1200	1106.4	1200
2024-11-01	1140.3	1200	1106.4	1200
2024-10-01	1140.3	1200	1106.4	1200
2024-09-01	1140.3	1200	1106.4	1200
2024-11-01	1143.1	1200	1102	1200
2024-07-01	1143.1	1200	1102	1200
2024-06-01	1143.1	1200	1102	1200
2024-05-01	1143.1	1200	1102	1200
2024-04-01	1143.1	1200	1102	1200
2024-03-01	1143.1	1200	1102	1200
2024-02-01	1143.1	1200	1102	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	2025 Mzansi Individual Championships (U12 Open)	2025-12-17	2025-12-20	Standard	Nelson Mandela Bay (ENM)	6	0	0	No	Analysis
2	North Coast Term 4 Blitz 2025	2025-11-17	2025-11-17	Blitz	iLembe (KIK)	7	6	0	Yes	Analysis
3	North Coast Chess Club Term 4 Swiss 2025 (Open)	2025-10-06	2025-11-11	Standard	iLembe (KIK)	6	4	0	Yes	Analysis
4	KwaDukuza Schools Ward Games 2025 (U14)	2025-10-11	2025-10-11	Rapid	iLembe (KIK)	5	5	3	Yes	Analysis
5	Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Candidates)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	5	1	Yes	Analysis
6	Ashton International College Chess Champs 2024 (Junior Primary)	2024-08-17	2024-08-17	Rapid	Ethekwini (KED)	5	5	2	Yes	Analysis
7	Ilembe Junior Rapid 2023 (Junior Primary)	2023-02-18	2023-02-18	Rapid	iLembe (KIK)	5	4	0.5	Yes	Analysis
8	Crawford International North Coast Chess Challenge 2023 (Junior Primary)	2023-02-25	2023-02-25	Rapid	iLembe (KIK)	5	2	0	Yes	Analysis
9	Stanger Manor Chess Challenge 2022 (U10)	2022-08-27	2022-08-27	Standard	iLembe (KIK)	5	0	0	No	Analysis

#	Games	Start				End
1	2	Tournament KwaDukuza Schools Ward Games 2025				Tournament KwaDukuza Schools Ward Games 2025
		date 2025-10-11	rnd 4	type Rapid	result 1	date 2025-10-11	rnd 5	type Rapid	result 1
		Opponent Myeni, B (Bonisa)				Opponent Mkhize, S (Sisekelo)
2	1	Tournament KwaDukuza Schools Ward Games 2025				Tournament KwaDukuza Schools Ward Games 2025
		date 2025-10-11	rnd 2	type Rapid	result 1	date 2025-10-11	rnd 2	type Rapid	result 1
		Opponent Mthimkhulu, L (Lubanzi)				Opponent Mthimkhulu, L (Lubanzi)
3	1	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-18	rnd 6	type Standard	result 1	date 2024-12-18	rnd 6	type Standard	result 1
		Opponent Phihlela, M (Moyahabo)				Opponent Phihlela, M (Moyahabo)

#	Games	Start				End
1	1	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-18	rnd 6	type Standard	result 1	date 2024-12-18	rnd 6	type Standard	result 1
		Opponent Phihlela, M (Moyahabo)				Opponent Phihlela, M (Moyahabo)

#	Games	Start				End
1	1	Tournament Ashton International College Chess Champs 2024				Tournament Ashton International College Chess Champs 2024
		date 2024-08-17	rnd 4	type Rapid	result 1	date 2024-08-17	rnd 4	type Rapid	result 1
		Opponent Naguran, K (Kiyaan)				Opponent Naguran, K (Kiyaan)
2	1	Tournament Ashton International College Chess Champs 2024				Tournament Ashton International College Chess Champs 2024
		date 2024-08-17	rnd 1	type Rapid	result 1	date 2024-08-17	rnd 1	type Rapid	result 1
		Opponent Van Ast, J (Jack)				Opponent Van Ast, J (Jack)
3	1	Tournament Ilembe Junior Rapid 2023				Tournament Ilembe Junior Rapid 2023
		date 2023-02-18	rnd 3	type Rapid	result 0.5	date 2023-02-18	rnd 3	type Rapid	result 0.5
		Opponent Mathew, N (Nathan)				Opponent Mathew, N (Nathan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-18	rnd 6	type Standard	result 1	date 2024-12-18	rnd 6	type Standard	result 1
		Opponent Phihlela, M (Moyahabo)				Opponent Phihlela, M (Moyahabo)
2	1	Tournament Ashton International College Chess Champs 2024				Tournament Ashton International College Chess Champs 2024
		date 2024-08-17	rnd 4	type Rapid	result 1	date 2024-08-17	rnd 4	type Rapid	result 1
		Opponent Naguran, K (Kiyaan)				Opponent Naguran, K (Kiyaan)
3	1	Tournament Ashton International College Chess Champs 2024				Tournament Ashton International College Chess Champs 2024
		date 2024-08-17	rnd 1	type Rapid	result 1	date 2024-08-17	rnd 1	type Rapid	result 1
		Opponent Van Ast, J (Jack)				Opponent Van Ast, J (Jack)

#	Games	Start				End
1	1	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-18	rnd 6	type Standard	result 1	date 2024-12-18	rnd 6	type Standard	result 1
		Opponent Phihlela, M (Moyahabo)				Opponent Phihlela, M (Moyahabo)

#	Games	Start				End
1	1	Tournament Ashton International College Chess Champs 2024				Tournament Ashton International College Chess Champs 2024
		date 2024-08-17	rnd 4	type Rapid	result 1	date 2024-08-17	rnd 4	type Rapid	result 1
		Opponent Naguran, K (Kiyaan)				Opponent Naguran, K (Kiyaan)
2	1	Tournament Ashton International College Chess Champs 2024				Tournament Ashton International College Chess Champs 2024
		date 2024-08-17	rnd 1	type Rapid	result 1	date 2024-08-17	rnd 1	type Rapid	result 1
		Opponent Van Ast, J (Jack)				Opponent Van Ast, J (Jack)

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	Makhoba ,Z (Zipho)	2	0	-425	1	0	-425	0	0	0	1	0	-425
1	Makhoba ,Z (Zipho)	2	1410.2	985.2	1	1478.2	985.2	0	0	0	1	1199.3	985.2
2	Doorsamy ,S (Sahilan)	2	0	-425	1	0	-425	0	0	0	1	0	-425
2	Doorsamy ,S (Sahilan)	2	1389.6	964.6	1	1352.4	964.6	0	0	0	1	1198.7	964.6
3	Chen ,N (Neo)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Chen ,N (Neo)	2	1213.3	788.3	0	0	0	2	1212.9	788.3	0	0	0
4	Wilson ,J (Jared)	2	0	-425	0	0	0	1	0	-425	1	0	-425
4	Wilson ,J (Jared)	2	1478.9	1053.9	0	0	0	1	1480.5	1053.9	1	1217.9	1053.9
5	Mbeje ,U (Uminathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mbeje ,U (Uminathi)	1	1163	738	1	1219.6	738	0	0	0	0	0	0
6	Swanepoel ,B (Bijan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Swanepoel ,B (Bijan)	1	1113.2	688.2	1	1122.3	688.2	0	0	0	0	0	0
7	Banfield ,M (Michael)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Banfield ,M (Michael)	1	1201.5	776.5	1	1202.1	776.5	0	0	0	0	0	0
8	Phihlela ,M (Moyahabo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Phihlela ,M (Moyahabo)	1	994.6	1419.6	1	990.8	1419.6	0	0	0	0	0	0
9	Malisa ,K (Kealeboha)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Malisa ,K (Kealeboha)	1	1196.3	771.3	1	1195.6	771.3	0	0	0	0	0	0
10	Moodley ,K (Kai)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Moodley ,K (Kai)	1	1422.3	997.3	1	1390.6	997.3	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

Blumberg, R (Ryker)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms