Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bull, D (Dearan)

Chess SA id

100003864

FIDE id

Date of birth

2000-12-08 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-07-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1275.2	1268.7	1194	1250.4
Raw rating	1275.2	1268.7	1194	1250.4
Weighted rating	1275.2	1268.7	1194	1250.4
Weighted performance	151.3	151.4	0	0
Floor	775.2	768.7	694	750.4
K-factor	36	36	40	36
Min/Max rating change allowed	149	150.4	167.2	154.3
Highest rating	1275.2 2024-02-01	1268.7 2024-02-01	1200 2024-02-01	1369.1 2018-01-01
Highest raw rating	1275.2 2024-02-01	1268.7 2024-02-01	1194 2024-02-01	1250.4 2024-02-01
Highest weighted rating	1275.2 2024-02-01	1268.7 2024-02-01	1194 2024-11-01	1250.4 2025-02-01
Highest weighted performance	1266.5 2018-01-01	1262.8 2018-01-01	1200 2024-02-01	1369.1 2018-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1275.2	1268.7	1194	1250.4
Analysis
Rating	1275.2	1268.7	1194	1250.4
Raw rating	1275.2	1268.7	1194	1250.4
Weighted rating	1275.2	1268.7	1194
Weighted performance	151.3	151.4	0
K-factor	36	36	40	36
Floor	775.2	768.7	694	750.4
Max/Min rating change allowed	149	150.4	167.2	154.3
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	1275.2	1268.7	1194	1250.4
New weighted rating	1275.2	1268.7	1194	1250.4
New weighted performance	150.8	151	0	0
Temp new rating	1275.2	1268.7	1194	1250.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1275.2	1268.7	1194	1250.4
New K-factor	36	36	40	36
New floor	775.2	768.7	694	750.4

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	308	298	3	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	43	20	46.51	-29.7	1303.2	1273.5
Standard	36	18	50	0	1255.5	1255.5
Rapid	0	0	0	0	0	0
Blitz	7	2	28.57	-182.1	1548.4	1366.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1275.2	1268.7	1194	1250.4
2025-09-01	1275.2	1268.7	1194	1250.4
2025-08-01	1275.2	1268.7	1194	1250.4
2025-07-01	1275.2	1268.7	1194	1250.4
2025-06-01	1275.2	1268.7	1194	1250.4
2025-05-01	1275.2	1268.7	1194	1250.4
2025-04-01	1275.2	1268.7	1194	1250.4
2025-03-01	1275.2	1268.7	1194	1250.4
2025-02-01	1275.2	1268.7	1194	1250.4
2025-01-01	1275.2	1268.7	1194	1250.4
2024-12-01	1275.2	1268.7	1194	1250.4
2024-11-01	1275.2	1268.7	1194	1250.4
2024-10-01	1275.2	1268.7	1194	1250.4
2024-09-01	1275.2	1268.7	1194	1250.4
2024-08-01	1275.2	1268.7	1194	1250.4
2024-07-01	1275.2	1268.7	1194	1250.4
2024-06-01	1275.2	1268.7	1194	1250.4
2024-08-01	1275.2	1268.7	1194	1250.4
2024-04-01	1275.2	1268.7	1194	1250.4
2024-03-01	1275.2	1268.7	1194	1250.4
2024-02-01	1275.2	1268.7	1194	1250.4
2024-01-01	1275.2	1268.7	1194	1250.4
2023-12-01	1275.2	1268.7	1194	1250.4
2023-11-01	1275.2	1268.7	1194	1250.4

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	2019 D4 Tshwane South Schools League Team Finals (U19)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2018 South African Junior Closed Chess Championships (U18 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	10	2.5	Yes	Analysis
3	2018 Crawford Open (B)	2018-03-24	2018-03-24	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
4	2018 Constantia Park Open (C)	2018-02-10	2018-02-10	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	South African Junior Blitz 2017 Championships (A)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	7	2	Yes	Analysis
6	South African Junior Wildcard Championships 2017 (U18 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	6	3.5	Yes	Analysis
7	South African Junior Team Championships 2017 (U18C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	5.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-07	rnd 6	type Standard	result 1
		Opponent Ntozini, T (Thandokazi)				Opponent De Jongh, R (Ruben)
2	4	Tournament 2018 Constantia Park Open				Tournament 2018 Crawford Open
		date 2018-02-10	rnd 3	type Standard	result 1	date 2018-03-24	rnd 1	type Standard	result 1
		Opponent Strumpfer, M (Marilee)				Opponent May, M (Miracle)
3	4	Tournament South African Junior Wildcard Championships 2017				Tournament 2018 Constantia Park Open
		date 2018-01-11	rnd 5	type Standard	result 1	date 2018-02-10	rnd 1	type Standard	result 0.5
		Opponent Van Dyk, JB (Jacobus)				Opponent Roberts, K (Kate)

#	Games	Start				End
1	6	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 0.5
		Opponent Ntozini, T (Thandokazi)				Opponent Johr, D (Dylan)
2	4	Tournament 2018 Constantia Park Open				Tournament 2018 Crawford Open
		date 2018-02-10	rnd 3	type Standard	result 1	date 2018-03-24	rnd 1	type Standard	result 1
		Opponent Strumpfer, M (Marilee)				Opponent May, M (Miracle)
3	4	Tournament South African Junior Wildcard Championships 2017				Tournament 2018 Constantia Park Open
		date 2018-01-11	rnd 5	type Standard	result 1	date 2018-02-10	rnd 1	type Standard	result 0.5
		Opponent Van Dyk, JB (Jacobus)				Opponent Roberts, K (Kate)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 4	type Blitz	result 1	date 2018-01-07	rnd 4	type Blitz	result 1
		Opponent Du Plessis, JAK (Jan)				Opponent Du Plessis, JAK (Jan)
2	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 2	type Blitz	result 1	date 2018-01-07	rnd 2	type Blitz	result 1
		Opponent Leslie-Smith, L (Lance)				Opponent Leslie-Smith, L (Lance)

#	Games	Start				End
1	5	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-07	rnd 6	type Standard	result 1
		Opponent Ntozini, T (Thandokazi)				Opponent De Jongh, R (Ruben)
2	2	Tournament 2019 D4 Tshwane South Schools League Team Finals				Tournament 2019 D4 Tshwane South Schools League Team Finals
		date 2019-07-27	rnd 1	type Standard	result 1	date 2019-07-27	rnd 2	type Standard	result 1
		Opponent Subbiah, KJ (Keshiv)				Opponent Minnaar, M (Michelle)
3	2	Tournament 2018 Constantia Park Open				Tournament 2018 Constantia Park Open
		date 2018-02-10	rnd 3	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Strumpfer, M (Marilee)				Opponent Greef, S (Schalk)

#	Games	Start				End
1	5	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-07	rnd 6	type Standard	result 1
		Opponent Ntozini, T (Thandokazi)				Opponent De Jongh, R (Ruben)
2	2	Tournament 2019 D4 Tshwane South Schools League Team Finals				Tournament 2019 D4 Tshwane South Schools League Team Finals
		date 2019-07-27	rnd 1	type Standard	result 1	date 2019-07-27	rnd 2	type Standard	result 1
		Opponent Subbiah, KJ (Keshiv)				Opponent Minnaar, M (Michelle)
3	2	Tournament 2018 Constantia Park Open				Tournament 2018 Constantia Park Open
		date 2018-02-10	rnd 3	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Strumpfer, M (Marilee)				Opponent Greef, S (Schalk)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 4	type Blitz	result 1	date 2018-01-07	rnd 4	type Blitz	result 1
		Opponent Du Plessis, JAK (Jan)				Opponent Du Plessis, JAK (Jan)
2	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 2	type Blitz	result 1	date 2018-01-07	rnd 2	type Blitz	result 1
		Opponent Leslie-Smith, L (Lance)				Opponent Leslie-Smith, L (Lance)

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	Rogge ,CG (Conrad Gustav)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Rogge ,CG (Conrad Gustav)	2	1486.9	1061.9	2	1488.8	1061.9	0	0	0	0	0	0
2	Van Der Westhuizen ,D (Donald)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Van Der Westhuizen ,D (Donald)	2	1637.9	1425.4	2	1642.2	1425.4	0	0	0	0	0	0
3	Van Wyk-Grove ,A (Alexander)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Van Wyk-Grove ,A (Alexander)	2	1203.6	778.6	2	1202.8	778.6	0	0	0	0	0	0
4	Bezuidenhout ,Z (Zander)	1	1	425	1	1	425	0	0	0	0	0	0
4	Bezuidenhout ,Z (Zander)	1	1312.2	1737.2	1	1312.2	1737.2	0	0	0	0	0	0
5	May ,M (Miracle)	1	1	425	1	1	425	0	0	0	0	0	0
5	May ,M (Miracle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Flores Bartoli ,A (Andrew)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Flores Bartoli ,A (Andrew)	1	1680.9	1255.9	1	1672.4	1255.9	0	0	0	0	0	0
7	Louw ,D (Deon)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Louw ,D (Deon)	1	1166.8	1166.8	1	1166.8	1166.8	0	0	0	0	0	0
8	Ntsileng ,SR (Sebaga Reneilwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ntsileng ,SR (Sebaga Reneilwe)	1	1014.2	589.2	1	1014.2	589.2	0	0	0	0	0	0
9	Subbiah ,KJ (Keshiv)	1	1	425	1	1	425	0	0	0	0	0	0
9	Subbiah ,KJ (Keshiv)	1	1136.4	1561.4	1	1139.2	1561.4	0	0	0	0	0	0
10	Marais ,DP (Daniel Petrus)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Marais ,DP (Daniel Petrus)	1	1817	1392	1	1802.2	1392	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

Bull, D (Dearan)

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