Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, DE (Darryl)

Chess SA id

172090579

FIDE id

Date of birth

1972-06-10 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

CPA

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1409.6	1391.4	1111.8	518
Raw rating	1361	1338.4	1111.8	518
Weighted rating	1409.6	1391.4	1111.8	518
Weighted performance	1238.9	1222.8	0	0
Floor	973.3	953.9	611.8	500
K-factor	32	32	40	40
Min/Max rating change allowed	131.8	136.1	188	438.1
Highest rating	1473.3 2024-12-01	1453.9 2024-12-01	1200 2018-01-01	1200 2024-02-01
Highest raw rating	1473.3 2024-12-01	1453.9 2024-12-01	1111.8 2024-02-01	518 2024-02-01
Highest weighted rating	1408 2025-11-01	1391.3 2025-11-01	1111.8 2024-11-01	518 2024-11-01
Highest weighted performance	1449.2 2025-01-01	1449.2 2025-01-01	1200 2018-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.1	-0.7	0	0
New rating	1409.5	1390.7	1111.8	518
Analysis
Rating	1409.6	1391.4	1111.8	518
Raw rating	1361	1338.4	1111.8	518
Weighted rating	1409.6	1391.4	1111.8
Weighted performance	1238.9	1222.8	0
K-factor	32	32	40	40
Floor	973.3	953.9	611.8	500
Max/Min rating change allowed	131.8	136.1	188	438.1
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	1361	1338.4	1111.8	518
New weighted rating	1409.5	1390.7	1111.8	518
New weighted performance	1229.8	1213.8	0	0
Temp new rating	1409.5	1390.7	1111.8	518
Temp new rating +/-	-0.1	-0.7	0	0
Final new rating +/-	-0.1	-0.7	0	0
New rating	1409.5	1390.7	1111.8	518
New K-factor	32	32	40	40
New floor	973.3	953.9	611.8	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	11	11	0	0
	31	31	0	0
	16	16	0	0
	5	5	0	0
	0	0	0	0
History	141	112	22	7

Games since
	Main 42	Standard 42		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2093		641		299
Male	1716		512		246
Adult	515		155		99
Adult Male	471		139		88
Standard
	RSA		Province		Region
Overall	2183		602		289
Male	1773		467		232
Adult	486		117		88
Adult Male	445		104		79
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	11	1.5	13.64	-309.1	1460.4	1151.3
Standard	11	1.5	13.64	-309.1	1460.4	1151.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	121	52.5	43.39	-56.2	1305.7	1249.5
Standard	105	48	45.71	-36.4	1300.2	1263.8
Rapid	16	4.5	28.12	-185.9	1341.4	1155.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1361	1338.4	1111.8	518
2025-11-30	1361	1338.4	1111.8	518
2025-11-01	1361	1338.4	1111.8	518
2025-09-30	1473.3	1453.9	1111.8	518
2025-09-01	1473.3	1453.9	1111.8	518
2025-08-01	1473.3	1453.9	1111.8	518
2025-07-01	1473.3	1453.9	1111.8	518
2025-06-01	1473.3	1453.9	1111.8	518
2025-05-01	1473.3	1453.9	1111.8	518
2025-04-01	1473.3	1453.9	1111.8	518
2025-03-01	1473.3	1453.9	1111.8	518
2025-02-01	1473.3	1453.9	1111.8	518
2025-01-01	1473.3	1453.9	1111.8	518
2024-12-01	1473.3	1453.9	1111.8	518
2024-11-01	1373.5	1357.2	1111.8	518
2024-10-01	1383.9	1361.9	1111.8	518
2024-09-01	1220.2	1218.4	1111.8	518
2024-11-01	1220.2	1218.4	1111.8	518
2024-07-01	1198.6	1193.6	1111.8	518
2024-06-01	1198.6	1193.6	1111.8	518
2024-05-01	1198.6	1193.6	1111.8	518
2024-04-01	1198.6	1193.6	1111.8	518
2024-03-01	1198.6	1193.6	1111.8	518
2024-02-01	1198.6	1193.6	1111.8	518

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	Cape Town Chess Federation Club League 2025 (B)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	2	0	Yes	Analysis
2	Cape Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	9	1.5	Yes	Analysis
3	Cape Town Chess Federation Club League 2025 (D)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	0	0	No	Analysis
4	PR Booyse Standard Tournament 2024 (Elite)	2024-11-02	2024-11-02	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
5	Helderberg Chess Club Open 2024 (B)	2024-11-09	2024-11-10	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
6	Chess Elevation Series - October 2024 (Level 5)	2024-10-25	2024-10-26	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
7	Chess Elevation Series -September 2024 (Level 4)	2024-09-20	2024-09-21	Standard	Cape Town (WCT)	5	4	3.5	Yes	Analysis
8	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
9	Chess Elevation Series - July 2024 (Open)	2024-07-05	2024-07-06	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
10	Chess Elevation Series 2023 (Level 2A)	2023-11-03	2023-11-04	Standard	Cape Town (WCT)	5	4	0	Yes	Analysis
11	WP Club League 2023 (D1)	2023-07-29	2023-08-19	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
12	Cape of Good Hope Open 2023 (Intermediate)	2023-01-28	2023-01-29	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
13	Steinitz Open 2022 (B)	2022-05-20	2022-05-22	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
14	2020 Western Province Open (Prestige)	2020-03-07	2020-03-08	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
15	2019 Western Province League (D)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	4	3	Yes	Analysis
16	South African Open Chess Championships 2019 (C)	2019-06-15	2019-06-17	Standard	Frances Baard (NCF)	6	4	3	Yes	Analysis
17	South African Open Chess Championships 2019 (Rapid)	2019-06-17	2019-06-17	Rapid	Frances Baard (NCF)	5	3	0	Yes	Analysis
18	Steinitz Chess Festival 2019 (B)	2019-04-05	2019-04-07	Standard	Cape Town (WCT)	6	5	1.5	Yes	Analysis
19	Crossroads Open Chess Championship 2019 (C)	2019-04-27	2019-04-28	Standard	Cape Town (WCT)	6	5	2.5	Yes	Analysis
20	Cape of Good Hope Open 2019 (C)	2019-01-25	2019-01-27	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
21	Drakenstein Dragons Rapid 2019 (Open)	2019-01-19	2019-01-19	Rapid	Cape Winelands (WCW)	6	6	1.5	Yes	Analysis
22	2018 Western Province League (E)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	7	6	3	Yes	Analysis
23	Eldo Smart Memorial Rapid Tournament 2018	2018-06-16	2018-06-16	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis
24	Crossroads Open Chess Championship 2018 (B)	2018-04-27	2018-04-29	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament Helderberg Chess Club Open 2024				Tournament Cape Town Chess Federation Club League 2025
		date 2024-11-09	rnd 3	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 1
		Opponent Potgieter, G (Gert Olivier)				Opponent Copley, M (Murray)
2	5	Tournament CT League 2024				Tournament Chess Elevation Series -September 2024
		date 2024-08-03	rnd 6	type Standard	result 1	date 2024-09-21	rnd 4	type Standard	result 1
		Opponent Tomi, A (Amange)				Opponent Mackinna, C (Cashlin)
3	4	Tournament PR Booyse Standard Tournament 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-11-02	rnd 3	type Standard	result 0.5	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Booysen, J (Jenilo)				Opponent Sprowson, A (Andrew)

#	Games	Start				End
1	5	Tournament CT League 2024				Tournament Chess Elevation Series -September 2024
		date 2024-08-03	rnd 6	type Standard	result 1	date 2024-09-21	rnd 4	type Standard	result 1
		Opponent Tomi, A (Amange)				Opponent Mackinna, C (Cashlin)
2	4	Tournament Helderberg Chess Club Open 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-11-09	rnd 3	type Standard	result 1	date 2024-11-10	rnd 6	type Standard	result 1
		Opponent Potgieter, G (Gert Olivier)				Opponent Van Der Linde, L (Luandi)
3	4	Tournament PR Booyse Standard Tournament 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-11-02	rnd 3	type Standard	result 0.5	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Booysen, J (Jenilo)				Opponent Sprowson, A (Andrew)

#	Games	Start				End
1	2	Tournament Eldo Smart Memorial Rapid Tournament 2018				Tournament Eldo Smart Memorial Rapid Tournament 2018
		date 2018-06-16	rnd 5	type Rapid	result 1	date 2018-06-16	rnd 6	type Rapid	result 1
		Opponent Coleman, J (Jack)				Opponent Ntukulela, B (Bafana)
2	1	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 6	type Rapid	result 0.5	date 2019-01-19	rnd 6	type Rapid	result 0.5
		Opponent Sheldon, MB (Matthew)				Opponent Sheldon, MB (Matthew)
3	1	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 4	type Rapid	result 1	date 2019-01-19	rnd 4	type Rapid	result 1
		Opponent Strauss, R (Reinhardt)				Opponent Strauss, R (Reinhardt)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Helderberg Chess Club Open 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-11-09	rnd 3	type Standard	result 1	date 2024-11-10	rnd 6	type Standard	result 1
		Opponent Potgieter, G (Gert Olivier)				Opponent Van Der Linde, L (Luandi)
2	3	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-03	rnd 3	type Standard	result 1	date 2019-08-24	rnd 9	type Standard	result 1
		Opponent Swart, S (Steffan)				Opponent Zimondi, T (Thafadzwa)
3	2	Tournament PR Booyse Standard Tournament 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-11-02	rnd 5	type Standard	result 1	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Arendse, Q (Quinwinne)				Opponent Sprowson, A (Andrew)

#	Games	Start				End
1	4	Tournament Helderberg Chess Club Open 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-11-09	rnd 3	type Standard	result 1	date 2024-11-10	rnd 6	type Standard	result 1
		Opponent Potgieter, G (Gert Olivier)				Opponent Van Der Linde, L (Luandi)
2	3	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-03	rnd 3	type Standard	result 1	date 2019-08-24	rnd 9	type Standard	result 1
		Opponent Swart, S (Steffan)				Opponent Zimondi, T (Thafadzwa)
3	3	Tournament South African Open Chess Championships 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-16	rnd 4	type Standard	result 1	date 2019-06-17	rnd 6	type Standard	result 1
		Opponent Daniels, O (Owethu)				Opponent Manyate, S (Sibongile)

#	Games	Start				End
1	2	Tournament Eldo Smart Memorial Rapid Tournament 2018				Tournament Eldo Smart Memorial Rapid Tournament 2018
		date 2018-06-16	rnd 5	type Rapid	result 1	date 2018-06-16	rnd 6	type Rapid	result 1
		Opponent Coleman, J (Jack)				Opponent Ntukulela, B (Bafana)
2	1	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 4	type Rapid	result 1	date 2019-01-19	rnd 4	type Rapid	result 1
		Opponent Strauss, R (Reinhardt)				Opponent Strauss, R (Reinhardt)
3	1	Tournament Eldo Smart Memorial Rapid Tournament 2018				Tournament Eldo Smart Memorial Rapid Tournament 2018
		date 2018-06-16	rnd 3	type Rapid	result 1	date 2018-06-16	rnd 3	type Rapid	result 1
		Opponent Jacobs, C (Caitlin)				Opponent Jacobs, C (Caitlin)

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	Van Staaden ,D (Darren)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Van Staaden ,D (Darren)	3	1522.2	1380.5	3	1512.7	1380.5	0	0	0	0	0	0
2	Mabika ,B (Bheka)	2	1	0	2	1	0	0	0	0	0	0	0
2	Mabika ,B (Bheka)	2	1109.5	1109.5	2	1107.6	1109.5	0	0	0	0	0	0
3	Maneveld ,C (Conrad)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Maneveld ,C (Conrad)	2	1198.8	773.8	1	1200	773.8	1	1200	773.8	0	0	0
4	Alard ,N (Nawaaz)	1	1	425	1	1	425	0	0	0	0	0	0
4	Alard ,N (Nawaaz)	1	1197.4	1622.4	1	1172.3	1622.4	0	0	0	0	0	0
5	Jamjam ,I (Inga)	1	1	425	1	1	425	0	0	0	0	0	0
5	Jamjam ,I (Inga)	1	984.8	1409.8	1	982.4	1409.8	0	0	0	0	0	0
6	Potgieter ,G (Gert Olivier)	1	1	425	1	1	425	0	0	0	0	0	0
6	Potgieter ,G (Gert Olivier)	1	1199.4	1624.4	1	1180.9	1624.4	0	0	0	0	0	0
7	Booysen ,L (Louis)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Booysen ,L (Louis)	1	1260.3	835.3	1	1257.5	835.3	0	0	0	0	0	0
8	Copley ,M (Murray)	1	1	425	1	1	425	0	0	0	0	0	0
8	Copley ,M (Murray)	1	1476.3	1901.3	1	1454.2	1901.3	0	0	0	0	0	0
9	Thakersee ,A (Akshay)	1	1	425	1	1	425	0	0	0	0	0	0
9	Thakersee ,A (Akshay)	1	1333.6	1758.6	1	1322.7	1758.6	0	0	0	0	0	0
10	Stern ,M (Mason)	1	1	425	1	1	425	0	0	0	0	0	0
10	Stern ,M (Mason)	1	1544.3	1969.3	1	1569.7	1969.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Jacobs, DE (Darryl)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms