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

2025-10-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1525.7	1541	1200	1200
Raw rating	1525.7	1541	1200	1200
Weighted rating	1436.3	1451.2	1200	1200
Weighted performance	1382.3	1379.3	0	0
Floor	1025.7	1041	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	104.3	102	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	1525.7 2025-11-30	1541 2025-11-30	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	1525.7	1541	1200	1200
Analysis
Rating	1525.7	1541	1200	1200
Raw rating	1525.7	1541	1200	1200
Weighted rating	1436.3	1451.2	1200
Weighted performance	1382.3	1379.3	0
K-factor	32	32	36	36
Floor	1025.7	1041	700	700
Max/Min rating change allowed	104.3	102	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	1525.7	1541	1200	1200
New weighted rating	1448.1	1463.1	1200	1200
New weighted performance	1372.6	1369.6	0	0
Temp new rating	1525.7	1541	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1525.7	1541	1200	1200
New K-factor	32	32	36	36
New floor	1025.7	1041	700	700

Item	Main	Standard
	0	0
	22	22
	17	17
	0	0
	0	0
	0	0
History	39	39

Games since
	Main 39	Standard 39		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	909		346		118
Male	791		296		96
U18	134		52		13
U18 Male	119		46		11
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	22	16.5	75	212.5	1288.6	1501.1
Standard	22	16.5	75	212.5	1288.6	1501.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	39	30.5	78.21	239.7	1270.6	1510.4
Standard	39	30.5	78.21	239.7	1270.6	1510.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1525.7	1541	1200	1200
2025-11-30	1525.7	1541	1200	1200
2025-11-01	1482.4	1489.5	1200	1200
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
2024-11-01	1297.9	1315.3	1200	1200
2024-07-01	1297.9	1315.3	1200	1200
2024-06-01	1283.3	1301.6	1200	1200
2024-05-01	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

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	JCC St Davids Marist Schools League 2025 (A)	2025-09-08	2025-10-27	Standard	Johannesburg Metro (GJM)	6	6	5.5	Yes	Analysis
2	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
3	CPH May 2025 (B)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
4	JCC - Dainfern Chess League 2025 (A)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	2	1.5	Yes	Analysis
5	JCC - Dainfern Chess League 2025 (B)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	4	3	Yes	Analysis
6	JCC St Peters High Schools League 2024 (A)	2024-09-09	2024-10-21	Standard	Johannesburg Metro (GJM)	6	6	5.5	Yes	Analysis
7	JCC Steyn City High Schools League 2024 (A)	2024-05-11	2024-05-25	Standard	Johannesburg Metro (GJM)	6	5	3	Yes	Analysis
8	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	Mehta ,A (Ansh)	2	1	0	2	1	0	0	0	0	0	0	0
1	Mehta ,A (Ansh)	2	1367.7	1367.7	2	1377.3	1367.7	0	0	0	0	0	0
2	Sahdeo ,J (Jashil)	2	1	0	2	1	0	0	0	0	0	0	0
2	Sahdeo ,J (Jashil)	2	1423.4	1423.4	2	1421.7	1423.4	0	0	0	0	0	0
3	Lancaster ,K (Kyra)	2	2	425	2	2	425	0	0	0	0	0	0
3	Lancaster ,K (Kyra)	2	1207.1	1632.1	2	1212.3	1632.1	0	0	0	0	0	0
4	Shalala ,D (Daniel John)	1	1	425	1	1	425	0	0	0	0	0	0
4	Shalala ,D (Daniel John)	1	1317.4	1742.4	1	1325.4	1742.4	0	0	0	0	0	0
5	Naidoo ,K (Kajol)	1	1	425	1	1	425	0	0	0	0	0	0
5	Naidoo ,K (Kajol)	1	1722.6	2147.6	1	1719.9	2147.6	0	0	0	0	0	0
6	Tsotetsi ,L (Lebohang)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Tsotetsi ,L (Lebohang)	1	650.4	225.4	1	596.4	225.4	0	0	0	0	0	0
7	Gudladona ,KP (Kartikeya Praneeth)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Gudladona ,KP (Kartikeya Praneeth)	1	1418	993	1	1424.5	993	0	0	0	0	0	0
8	Yaregal ,A (Aaron)	1	1	425	1	1	425	0	0	0	0	0	0
8	Yaregal ,A (Aaron)	1	1252.3	1677.3	1	1271	1677.3	0	0	0	0	0	0
9	Price ,J (Jonathan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Price ,J (Jonathan)	1	1214.6	1639.6	1	1219.4	1639.6	0	0	0	0	0	0
10	Reddy ,S (Shivek)	1	1	425	1	1	425	0	0	0	0	0	0
10	Reddy ,S (Shivek)	1	1135.1	1560.1	1	1123.7	1560.1	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

Bloem, D (Duncan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms