Chess South Africa Ratings Database

PLAYER PAGE

Personal

Adriaanse, GJ (Gerswin Jacques)

Chess SA id

177000298

FIDE id

Date of birth

1977-05-25 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1372.4	1364.1	1324.1	1306.2
Raw rating	1372.4	1364.1	1324.1	1306.2
Weighted rating	1372.4	1364.1	1324.1	1306.2
Weighted performance	0	0	0	0
Floor	880	870.6	824.1	818
K-factor	36	36	36	36
Min/Max rating change allowed	129.7	131.2	138.9	142.5
Highest rating	1554.5 2018-06-01	1567.5 2018-06-01	1389 2019-10-01	1362.9 2019-09-01
Highest raw rating	1380 2023-09-01	1370.6 2023-09-01	1324.1 2024-02-01	1318 2018-02-01
Highest weighted rating	1380 2025-07-01	1370.6 2025-07-01	1324.1 2024-02-01	1318 2018-07-01
Highest weighted performance	1554.5 2018-06-01	1567.5 2018-06-01	1389 2019-10-01	1362.9 2019-09-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1372.4	1364.1	1324.1	1306.2
Analysis
Rating	1372.4	1364.1	1324.1	1306.2
Raw rating	1372.4	1364.1	1324.1	1306.2
Weighted rating	1372.4	1364.1	1324.1
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	880	870.6	824.1	818
Max/Min rating change allowed	129.7	131.2	138.9	142.5
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	1372.4	1364.1	1324.1	1306.2
New weighted rating	1372.4	1364.1	1324.1	1306.2
New weighted performance	0	0	0	0
Temp new rating	1372.4	1364.1	1324.1	1306.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1372.4	1364.1	1324.1	1306.2
New K-factor	36	36	36	36
New floor	880	870.6	824.1	818

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	9	9	0	0
	0	0	0	0
	0	0	0	0
History	49	33	3	13

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	49	24.5	50	0	1363.1	1363.1
Standard	33	16.5	50	0	1383	1383
Rapid	3	1	33.33	-141.7	1536.6	1394.9
Blitz	13	7	53.85	32.7	1272.5	1305.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1372.4	1364.1	1324.1	1306.2
2025-09-01	1372.4	1364.1	1324.1	1306.2
2025-08-01	1372.4	1364.1	1324.1	1306.2
2025-07-01	1372.4	1364.1	1324.1	1306.2
2025-06-01	1372.4	1364.1	1324.1	1306.2
2025-05-01	1372.4	1364.1	1324.1	1306.2
2025-04-01	1372.4	1364.1	1324.1	1306.2
2025-03-01	1372.4	1364.1	1324.1	1306.2
2025-02-01	1372.4	1364.1	1324.1	1306.2
2025-01-01	1372.4	1364.1	1324.1	1306.2
2024-12-01	1372.4	1364.1	1324.1	1306.2
2024-11-01	1372.4	1364.1	1324.1	1306.2
2024-10-01	1372.4	1364.1	1324.1	1306.2
2024-09-01	1372.4	1364.1	1324.1	1306.2
2024-08-01	1372.4	1364.1	1324.1	1306.2
2024-07-01	1372.4	1364.1	1324.1	1306.2
2024-06-01	1372.4	1364.1	1324.1	1306.2
2024-08-01	1372.4	1364.1	1324.1	1306.2
2024-04-01	1372.4	1364.1	1324.1	1306.2
2024-03-01	1372.4	1364.1	1324.1	1306.2
2024-02-01	1372.4	1364.1	1324.1	1306.2
2024-01-01	1372.4	1364.1	1324.1	1306.2
2023-12-01	1372.4	1364.1	1324.1	1306.2
2023-11-01	1372.4	1364.1	1324.1	1306.2

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	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	8	1.5	Yes	Analysis
2	WP Club League 2023 (D2)	2023-08-05	2023-08-26	Standard	Cape Town (WCT)	6	1	1	Yes	Analysis
3	Bellville Rapid Oct 2019	2019-10-14	2019-10-14	Rapid	Cape Town (WCT)	6	3	1	Yes	Analysis
4	Bellville Blitz 2019	2019-09-16	2019-09-16	Blitz	Cape Town (WCT)	6	6	4	Yes	Analysis
5	2019 Western Province League (B)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	8	3.5	Yes	Analysis
6	Bellville Club Champs 2019 (B)	2019-02-04	2019-05-27	Standard	Cape Town (WCT)	11	9	6	Yes	Analysis
7	Bellville Chess Club 01 Blitz Tournament 2019	2019-01-28	2019-01-28	Blitz	Cape Town (WCT)	7	7	3	Yes	Analysis
8	2018 Western Province League (E)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	7	4	1.5	Yes	Analysis
9	Bellville Club Champs 2018 (Group 3)	2018-04-23	2018-06-04	Standard	Cape Town (WCT)	5	3	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Bellville Club Champs 2018				Tournament 2018 Western Province League
		date 2018-05-14	rnd 3	type Standard	result 1	date 2018-09-01	rnd 4	type Standard	result 0.5
		Opponent Nel, O (Ovidius)				Opponent Losper, S (Shabaan)
2	4	Tournament Bellville Club Champs 2019				Tournament Bellville Club Champs 2019
		date 2019-04-15	rnd 7	type Standard	result 0.5	date 2019-05-20	rnd 10	type Standard	result 1
		Opponent Vermaak, E (Eon)				Opponent Russouw, DJ (Daniel)
3	3	Tournament 2019 Western Province League				Tournament Bellville Blitz 2019
		date 2019-08-24	rnd 10	type Standard	result 0.5	date 2019-09-16	rnd 1	type Blitz	result 1
		Opponent Lay, O (Oliver)				Opponent Vermeulen, I (Inge)

#	Games	Start				End
1	5	Tournament Bellville Club Champs 2018				Tournament 2018 Western Province League
		date 2018-05-14	rnd 3	type Standard	result 1	date 2018-09-01	rnd 4	type Standard	result 0.5
		Opponent Nel, O (Ovidius)				Opponent Losper, S (Shabaan)
2	4	Tournament Bellville Club Champs 2019				Tournament Bellville Club Champs 2019
		date 2019-04-15	rnd 7	type Standard	result 0.5	date 2019-05-20	rnd 10	type Standard	result 1
		Opponent Vermaak, E (Eon)				Opponent Russouw, DJ (Daniel)
3	3	Tournament 2019 Western Province League				Tournament WP Club League 2023
		date 2019-08-24	rnd 10	type Standard	result 0.5	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Lay, O (Oliver)				Opponent Mbendeni, S (Siyakudumisa Kenneth)

#	Games	Start				End
1	1	Tournament Bellville Rapid Oct 2019				Tournament Bellville Rapid Oct 2019
		date 2019-10-14	rnd 2	type Rapid	result 1	date 2019-10-14	rnd 2	type Rapid	result 1
		Opponent Osborne, H (Hannah)				Opponent Osborne, H (Hannah)

#	Games	Start				End
1	3	Tournament Bellville Chess Club 01 Blitz Tournament 2019				Tournament Bellville Blitz 2019
		date 2019-01-28	rnd 6	type Blitz	result 1	date 2019-09-16	rnd 1	type Blitz	result 1
		Opponent Visage, P (Philip)				Opponent Vermeulen, I (Inge)
2	2	Tournament Bellville Blitz 2019				Tournament Bellville Blitz 2019
		date 2019-09-16	rnd 5	type Blitz	result 1	date 2019-09-16	rnd 6	type Blitz	result 1
		Opponent Vermeulen, L (Leonardus)				Opponent Magwembere, A (Adrian)
3	2	Tournament Bellville Chess Club 01 Blitz Tournament 2019				Tournament Bellville Chess Club 01 Blitz Tournament 2019
		date 2019-01-28	rnd 2	type Blitz	result 1	date 2019-01-28	rnd 3	type Blitz	result 0.5
		Opponent Osborne, H (Hannah)				Opponent Fittock, L (Luke)

#	Games	Start				End
1	4	Tournament Bellville Club Champs 2018				Tournament 2018 Western Province League
		date 2018-05-14	rnd 3	type Standard	result 1	date 2018-08-04	rnd 2	type Standard	result 1
		Opponent Nel, O (Ovidius)				Opponent Xinti, A (Abongile)
2	2	Tournament Bellville Blitz 2019				Tournament Bellville Blitz 2019
		date 2019-09-16	rnd 5	type Blitz	result 1	date 2019-09-16	rnd 6	type Blitz	result 1
		Opponent Vermeulen, L (Leonardus)				Opponent Magwembere, A (Adrian)
3	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Booysen, DF (Don-Fredo)				Opponent Steenberg, C (Chad)

#	Games	Start				End
1	4	Tournament Bellville Club Champs 2018				Tournament 2018 Western Province League
		date 2018-05-14	rnd 3	type Standard	result 1	date 2018-08-04	rnd 2	type Standard	result 1
		Opponent Nel, O (Ovidius)				Opponent Xinti, A (Abongile)
2	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Booysen, DF (Don-Fredo)				Opponent Steenberg, C (Chad)
3	2	Tournament Bellville Club Champs 2019				Tournament Bellville Club Champs 2019
		date 2019-05-13	rnd 9	type Standard	result 1	date 2019-05-20	rnd 10	type Standard	result 1
		Opponent Le Roux, M (Murray)				Opponent Russouw, DJ (Daniel)

#	Games	Start				End
1	1	Tournament Bellville Rapid Oct 2019				Tournament Bellville Rapid Oct 2019
		date 2019-10-14	rnd 2	type Rapid	result 1	date 2019-10-14	rnd 2	type Rapid	result 1
		Opponent Osborne, H (Hannah)				Opponent Osborne, H (Hannah)

#	Games	Start				End
1	2	Tournament Bellville Blitz 2019				Tournament Bellville Blitz 2019
		date 2019-09-16	rnd 5	type Blitz	result 1	date 2019-09-16	rnd 6	type Blitz	result 1
		Opponent Vermeulen, L (Leonardus)				Opponent Magwembere, A (Adrian)
2	1	Tournament Bellville Blitz 2019				Tournament Bellville Blitz 2019
		date 2019-09-16	rnd 3	type Blitz	result 1	date 2019-09-16	rnd 3	type Blitz	result 1
		Opponent Osborne, N (Nicole)				Opponent Osborne, N (Nicole)
3	1	Tournament Bellville Blitz 2019				Tournament Bellville Blitz 2019
		date 2019-09-16	rnd 1	type Blitz	result 1	date 2019-09-16	rnd 1	type Blitz	result 1
		Opponent Vermeulen, I (Inge)				Opponent Vermeulen, I (Inge)

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	Coetzee ,A (Aden)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Coetzee ,A (Aden)	2	1311.8	886.8	2	1297.1	886.8	0	0	0	0	0	0
2	Maritz ,J (Jean)	2	0.5	-212.5	1	0.5	0	0	0	0	1	0	-425
2	Maritz ,J (Jean)	2	1185.6	973.1	1	1176.8	1185.6	0	0	0	1	1140.8	760.6
3	Roux ,A (Andre)	2	0	-425	1	0	-425	0	0	0	1	0	-425
3	Roux ,A (Andre)	2	1165.1	740.1	1	1177.8	740.1	0	0	0	1	1071.2	740.1
4	Osborne ,H (Hannah)	2	2	425	0	0	0	1	1	425	1	1	425
4	Osborne ,H (Hannah)	2	1195.9	1620.9	0	0	0	1	1234.4	1620.9	1	1200	1620.9
5	Magwembere ,A (Adrian)	2	1	0	0	0	0	0	0	0	2	1	0
5	Magwembere ,A (Adrian)	2	1354.2	1354.2	0	0	0	0	0	0	2	1281.4	1354.2
6	Louw ,LT (Llewellyn Theodor)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Louw ,LT (Llewellyn Theodor)	1	1577.1	1152.1	1	1547	1152.1	0	0	0	0	0	0
7	Steenberg ,C (Chad)	1	1	425	1	1	425	0	0	0	0	0	0
7	Steenberg ,C (Chad)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Witbooi ,L (Lee-Roy)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Witbooi ,L (Lee-Roy)	1	1421.9	1421.9	1	1420	1421.9	0	0	0	0	0	0
9	Nel ,O (Ovidius)	1	1	425	1	1	425	0	0	0	0	0	0
9	Nel ,O (Ovidius)	1	1107.3	1532.3	1	1110.4	1532.3	0	0	0	0	0	0
10	Samuels ,ER (Ethan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Samuels ,ER (Ethan)	1	1884	1459	1	1903.5	1459	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

Adriaanse, GJ (Gerswin Jacques)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms