Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bloem, D (Duncan)

Chess SA id

1090301677

FIDE id

Date of birth

2009-04-22 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1410.2

Item	Main	Standard	Rapid	Blitz
Rating	1482.4	1489.5	1200	1200
Raw rating	1482.4	1489.5	1200	1200
Weighted rating	1398.1	1413.2	1200	1200
Weighted performance	1282	1278	0	0
Floor	1015.4	1034.7	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	110.9	109.8	165.8	165.8
Highest rating	1545.1 2024-04-01	1548.2 2024-04-01	1200 2024-05-01	1200 2024-05-01
Highest raw rating	1515.4 2025-04-01	1534.7 2025-04-01	1200 2024-05-01	1200 2024-05-01
Highest weighted rating	1515.4 2024-10-01	1534.7 2024-10-01	1200 2024-05-01	1200 2024-05-01
Highest weighted performance	1545.1 2024-04-01	1548.2 2024-04-01	1200 2024-05-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1482.4	1489.5	1200	1200
Analysis
Rating	1482.4	1489.5	1200	1200
Raw rating	1482.4	1489.5	1200	1200
Weighted rating	1398.1	1413.2	1200
Weighted performance	1282	1278	0
K-factor	32	32	36	36
Floor	1015.4	1034.7	700	700
Max/Min rating change allowed	110.9	109.8	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	1482.4	1489.5	1200	1200
New weighted rating	1409.5	1424.2	1200	1200
New weighted performance	1281.5	1277.5	0	0
Temp new rating	1482.4	1489.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1482.4	1489.5	1200	1200
New K-factor	32	32	36	36
New floor	1015.4	1034.7	700	700

Item	Main	Standard
	0	0
	16	16
	17	17
	0	0
	0	0
	0	0
History	33	33

Games since
	Main 33	Standard 33		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	1261		461		157
Male	1073		388		133
U18	207		78		22
U18 Male	182		67		17
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	16	11	68.75	159.4	1270.7	1430.1
Standard	16	11	68.75	159.4	1270.7	1430.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	33	25	75.76	218.9	1258.6	1477.6
Standard	33	25	75.76	218.9	1258.6	1477.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1482.4	1489.5	1200	1200
2025-09-01	1482.4	1489.5	1200	1200
2025-08-01	1482.4	1489.5	1200	1200
2025-07-01	1482.4	1489.5	1200	1200
2025-06-01	1478.3	1487.7	1200	1200
2025-05-01	1515.4	1534.7	1200	1200
2025-04-01	1515.4	1534.7	1200	1200
2025-03-01	1363.6	1392	1200	1200
2025-02-01	1363.6	1392	1200	1200
2025-01-01	1363.6	1392	1200	1200
2024-12-01	1363.6	1392	1200	1200
2024-11-01	1297.9	1315.3	1200	1200
2024-10-01	1297.9	1315.3	1200	1200
2024-09-01	1297.9	1315.3	1200	1200
2024-08-01	1297.9	1315.3	1200	1200
2024-07-01	1297.9	1315.3	1200	1200
2024-06-01	1283.3	1301.6	1200	1200
2024-08-01	1283.3	1301.6	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	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
2	CPH May 2025 (B)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
3	JCC - Dainfern Chess League 2025 (A)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	2	1.5	Yes	Analysis
4	JCC - Dainfern Chess League 2025 (B)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	4	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
2	CPH May 2025 (B)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
3	JCC - Dainfern Chess League 2025 (A)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	2	1.5	Yes	Analysis
4	JCC - Dainfern Chess League 2025 (B)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	4	3	Yes	Analysis
5	JCC St Peters High Schools League 2024 (A)	2024-09-09	2024-10-21	Standard	Johannesburg Metro (GJM)	6	6	5.5	Yes	Analysis
6	JCC Steyn City High Schools League 2024 (A)	2024-05-11	2024-05-25	Standard	Johannesburg Metro (GJM)	6	5	3	Yes	Analysis
7	Dainfern College Chess League 2024 (B)	2024-01-29	2024-03-11	Standard	Johannesburg Metro (GJM)	6	6	5.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament JCC Steyn City High Schools League 2024				Tournament JCC - Dainfern Chess League 2025
		date 2024-05-25	rnd 6	type Standard	result 1	date 2025-02-10	rnd 2	type Standard	result 1
		Opponent Naidoo, K (Kirtin)				Opponent Chocko, J (Josh)
2	8	Tournament Dainfern College Chess League 2024				Tournament JCC Steyn City High Schools League 2024
		date 2024-01-29	rnd 1	type Standard	result 1	date 2024-05-11	rnd 2	type Standard	result 1
		Opponent Latchman, A (Arya)				Opponent Pillay, J (Judah)
3	4	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-05-19	rnd 3	type Standard	result 1	date 2025-06-09	rnd 6	type Standard	result 1
		Opponent Felix, H (Harrison)				Opponent Van Heerden, R (Ryan)

#	Games	Start				End
1	9	Tournament JCC Steyn City High Schools League 2024				Tournament JCC - Dainfern Chess League 2025
		date 2024-05-25	rnd 6	type Standard	result 1	date 2025-02-10	rnd 2	type Standard	result 1
		Opponent Naidoo, K (Kirtin)				Opponent Chocko, J (Josh)
2	8	Tournament Dainfern College Chess League 2024				Tournament JCC Steyn City High Schools League 2024
		date 2024-01-29	rnd 1	type Standard	result 1	date 2024-05-11	rnd 2	type Standard	result 1
		Opponent Latchman, A (Arya)				Opponent Pillay, J (Judah)
3	4	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-05-19	rnd 3	type Standard	result 1	date 2025-06-09	rnd 6	type Standard	result 1
		Opponent Felix, H (Harrison)				Opponent Van Heerden, R (Ryan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament JCC St Peters High Schools League 2024				Tournament JCC - Dainfern Chess League 2025
		date 2024-10-07	rnd 4	type Standard	result 1	date 2025-02-10	rnd 2	type Standard	result 1
		Opponent Lancaster, K (Kyra)				Opponent Chocko, J (Josh)
2	5	Tournament Dainfern College Chess League 2024				Tournament JCC Steyn City High Schools League 2024
		date 2024-02-19	rnd 4	type Standard	result 1	date 2024-05-11	rnd 2	type Standard	result 1
		Opponent Naava, J (Julia)				Opponent Pillay, J (Judah)
3	3	Tournament CPH May 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-05-03	rnd 3	type Standard	result 1	date 2025-05-07	rnd 1	type Standard	result 1
		Opponent Ntombela, P (Prince)				Opponent Lancaster, K (Kyra)

#	Games	Start				End
1	5	Tournament JCC St Peters High Schools League 2024				Tournament JCC - Dainfern Chess League 2025
		date 2024-10-07	rnd 4	type Standard	result 1	date 2025-02-10	rnd 2	type Standard	result 1
		Opponent Lancaster, K (Kyra)				Opponent Chocko, J (Josh)
2	5	Tournament Dainfern College Chess League 2024				Tournament JCC Steyn City High Schools League 2024
		date 2024-02-19	rnd 4	type Standard	result 1	date 2024-05-11	rnd 2	type Standard	result 1
		Opponent Naava, J (Julia)				Opponent Pillay, J (Judah)
3	3	Tournament CPH May 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-05-03	rnd 3	type Standard	result 1	date 2025-05-07	rnd 1	type Standard	result 1
		Opponent Ntombela, P (Prince)				Opponent Lancaster, K (Kyra)

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	Lancaster ,K (Kyra)	2	2	425	2	2	425	0	0	0	0	0	0
1	Lancaster ,K (Kyra)	2	1207.1	1632.1	2	1212.3	1632.1	0	0	0	0	0	0
2	Gudladona ,KP (Kartikeya Praneeth)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Gudladona ,KP (Kartikeya Praneeth)	1	1418	993	1	1424.5	993	0	0	0	0	0	0
3	Swartz ,K (Kent Pierre)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Swartz ,K (Kent Pierre)	1	1464.6	1039.6	1	1482.2	1039.6	0	0	0	0	0	0
4	Naidoo ,K (Kajol)	1	1	425	1	1	425	0	0	0	0	0	0
4	Naidoo ,K (Kajol)	1	1722.6	2147.6	1	1719.9	2147.6	0	0	0	0	0	0
5	Tsotetsi ,L (Lebohang)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Tsotetsi ,L (Lebohang)	1	650.4	225.4	1	596.4	225.4	0	0	0	0	0	0
6	Smith ,W (William)	1	1	425	1	1	425	0	0	0	0	0	0
6	Smith ,W (William)	1	1253.5	1678.5	1	1254.8	1678.5	0	0	0	0	0	0
7	Singh ,A (Arav)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Singh ,A (Arav)	1	1190.8	1190.8	1	1189.6	1190.8	0	0	0	0	0	0
8	Burman ,D (Daniel)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Burman ,D (Daniel)	1	1262.4	1262.4	1	1272.7	1262.4	0	0	0	0	0	0
9	Pillay ,J (Judah)	1	1	425	1	1	425	0	0	0	0	0	0
9	Pillay ,J (Judah)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Musenge ,D (Daniel)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Musenge ,D (Daniel)	1	1368.6	1368.6	1	1368.2	1368.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Bloem, D (Duncan)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms