Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, D (Dewan)

Chess SA id

1090099499

FIDE id

Date of birth

2009-04-22 (U18)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-04-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1085.9	1082.4	1178.8	1200
Raw rating	1085.9	1082.4	1178.8	1200
Weighted rating	1085.9	1082.4	1178.8	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	195.1	196.1	170.9	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1085.9	1082.4	1178.8	1200
Analysis
Rating	1085.9	1082.4	1178.8	1200
Raw rating	1085.9	1082.4	1178.8	1200
Weighted rating	1085.9	1082.4	1178.8
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	195.1	196.1	170.9	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	1085.9	1082.4	1178.8	1200
New weighted rating	1085.9	1082.4	1178.8	1200
New weighted performance	0	0	0	0
Temp new rating	1085.9	1082.4	1178.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1085.9	1082.4	1178.8	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	17	11	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
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	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
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	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	17	8	47.06	-25	987.3	962.3
Standard	11	5	45.45	-38.6	925	886.4
Rapid	6	3	50	0	1101.6	1101.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1085.9	1082.4	1178.8	1200
2025-09-01	1085.9	1082.4	1178.8	1200
2025-08-01	1085.9	1082.4	1178.8	1200
2025-07-01	1085.9	1082.4	1178.8	1200
2025-06-01	1085.9	1082.4	1178.8	1200
2025-05-01	1085.9	1082.4	1178.8	1200
2025-04-01	1085.9	1082.4	1178.8	1200
2025-03-01	1085.9	1082.4	1178.8	1200
2025-02-01	1085.9	1082.4	1178.8	1200
2025-01-01	1085.9	1082.4	1178.8	1200
2024-12-01	1085.9	1082.4	1178.8	1200
2024-11-01	1085.9	1082.4	1178.8	1200
2024-10-01	1085.9	1082.4	1178.8	1200
2024-09-01	1085.9	1082.4	1178.8	1200
2024-08-01	1085.9	1082.4	1178.8	1200
2024-07-01	1085.9	1082.4	1178.8	1200
2024-06-01	1085.9	1082.4	1178.8	1200
2024-08-01	1085.9	1082.4	1178.8	1200
2024-04-01	1085.9	1082.4	1178.8	1200
2024-03-01	1085.9	1082.4	1178.8	1200
2024-02-01	1085.9	1082.4	1178.8	1200
2024-01-01	1085.9	1082.4	1178.8	1200
2023-12-01	1085.9	1082.4	1178.8	1200
2023-11-01	1085.9	1082.4	1178.8	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	NMB Second Trials 2018 (U10)	2018-04-20	2018-04-22	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
2	NMB First Trails 2018 (U10)	2018-03-23	2018-03-24	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
3	2018 Boardwalk Pearson Open (Devlopment)	2018-03-17	2018-03-17	Rapid	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Olsen, C (Christopher)
2	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-22	rnd 5	type Standard	result 1	date 2018-04-22	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Bouw, D (Darion)
3	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-04-21	rnd 2	type Standard	result 1
		Opponent Jones, K (Kellen)				Opponent Jones, K (Kellen)

#	Games	Start				End
1	2	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Olsen, C (Christopher)
2	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-22	rnd 5	type Standard	result 1	date 2018-04-22	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Bouw, D (Darion)
3	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-04-21	rnd 2	type Standard	result 1
		Opponent Jones, K (Kellen)				Opponent Jones, K (Kellen)

#	Games	Start				End
1	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 5	type Rapid	result 1	date 2018-03-17	rnd 5	type Rapid	result 1
		Opponent Van Der Merwe, B (Blaine)				Opponent Van Der Merwe, B (Blaine)
2	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 3	type Rapid	result 1	date 2018-03-17	rnd 3	type Rapid	result 1
		Opponent Clark, R (Ryan)				Opponent Clark, R (Ryan)
3	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 1	type Rapid	result 1	date 2018-03-17	rnd 1	type Rapid	result 1
		Opponent Yoyo, L (Lukhanyo)				Opponent Yoyo, L (Lukhanyo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Olsen, C (Christopher)
2	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-22	rnd 5	type Standard	result 1	date 2018-04-22	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Bouw, D (Darion)
3	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-04-21	rnd 2	type Standard	result 1
		Opponent Jones, K (Kellen)				Opponent Jones, K (Kellen)

#	Games	Start				End
1	2	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Olsen, C (Christopher)
2	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-22	rnd 5	type Standard	result 1	date 2018-04-22	rnd 5	type Standard	result 1
		Opponent Bouw, D (Darion)				Opponent Bouw, D (Darion)
3	1	Tournament NMB Second Trials 2018				Tournament NMB Second Trials 2018
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-04-21	rnd 2	type Standard	result 1
		Opponent Jones, K (Kellen)				Opponent Jones, K (Kellen)

#	Games	Start				End
1	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 5	type Rapid	result 1	date 2018-03-17	rnd 5	type Rapid	result 1
		Opponent Van Der Merwe, B (Blaine)				Opponent Van Der Merwe, B (Blaine)
2	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 3	type Rapid	result 1	date 2018-03-17	rnd 3	type Rapid	result 1
		Opponent Clark, R (Ryan)				Opponent Clark, R (Ryan)
3	1	Tournament 2018 Boardwalk Pearson Open				Tournament 2018 Boardwalk Pearson Open
		date 2018-03-17	rnd 1	type Rapid	result 1	date 2018-03-17	rnd 1	type Rapid	result 1
		Opponent Yoyo, L (Lukhanyo)				Opponent Yoyo, L (Lukhanyo)

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	Mafuya ,X (Xabiso)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Mafuya ,X (Xabiso)	2	823.9	398.9	2	782.8	398.9	0	0	0	0	0	0
2	Bouw ,D (Darion)	2	2	425	2	2	425	0	0	0	0	0	0
2	Bouw ,D (Darion)	2	1164.9	1589.9	2	1159.6	1589.9	0	0	0	0	0	0
3	Steenkamp ,C (Colleen)	1	1	425	1	1	425	0	0	0	0	0	0
3	Steenkamp ,C (Colleen)	1	1108	1533	1	1089.2	1533	0	0	0	0	0	0
4	Olsen ,C (Christopher)	1	1	425	1	1	425	0	0	0	0	0	0
4	Olsen ,C (Christopher)	1	531.5	956.5	1	538	956.5	0	0	0	0	0	0
5	De Beer ,K (Karli)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	De Beer ,K (Karli)	1	587.3	162.3	1	597.4	162.3	0	0	0	0	0	0
6	Jones ,K (Kellen)	1	1	425	1	1	425	0	0	0	0	0	0
6	Jones ,K (Kellen)	1	1034.2	1459.2	1	1034.2	1459.2	0	0	0	0	0	0
7	Spence ,K (Kayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Spence ,K (Kayden)	1	664.5	239.5	1	665.2	239.5	0	0	0	0	0	0
8	Jonker ,A (Adrian)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Jonker ,A (Adrian)	1	1106.9	681.9	1	1109.2	681.9	0	0	0	0	0	0
9	Crone ,C (Callan)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Crone ,C (Callan)	1	1164.6	739.6	1	1168.3	739.6	0	0	0	0	0	0
10	Van Der Merwe ,B (Blaine)	1	1	425	0	0	0	1	1	425	0	0	0
10	Van Der Merwe ,B (Blaine)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Jacobs, D (Dewan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms