Chess South Africa Ratings Database

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Personal

Koester, E (Euclides Euclides)

Chess SA id

186016097

FIDE id

Date of birth

1986-05-31 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

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	1710.3	1693	1536.7	1568.6
Raw rating	1710.3	1693	1536.7	1568.6
Weighted rating	1701.3	1680.5	1536.7	1552.3
Weighted performance	1200.4	0	0	0
Floor	1210.3	1193	1036.7	1068.6
K-factor	28	28	32	32
Min/Max rating change allowed	80.1	82.1	102.6	98.1
Highest rating	1710.3 2025-11-01	1693 2025-11-01	1536.7 2019-03-01	1568.6 2025-05-05
Highest raw rating	1710.3 2025-11-01	1693 2025-11-01	1536.7 2024-02-01	1568.6 2025-05-05
Highest weighted rating	1701.3 2025-11-01	1680.5 2025-11-01	1536.7 2019-03-01	1546.3 2025-08-01
Highest weighted performance	1445.9 2019-09-01	1638.4 2019-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1710.3	1693	1536.7	1568.6
Analysis
Rating	1710.3	1693	1536.7	1568.6
Raw rating	1710.3	1693	1536.7	1568.6
Weighted rating	1701.3	1680.5	1536.7
Weighted performance	1200.4	0	0
K-factor	28	28	32	32
Floor	1210.3	1193	1036.7	1068.6
Max/Min rating change allowed	80.1	82.1	102.6	98.1
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	1710.3	1693	1536.7	1568.6
New weighted rating	1702.2	1681.7	1536.7	1554.1
New weighted performance	1191	0	0	0
Temp new rating	1710.3	1693	1536.7	1568.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1710.3	1693	1536.7	1568.6
New K-factor	28	28	32	32
New floor	1210.3	1193	1036.7	1068.6

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	19	10	0	9
	2	2	0	0
	8	8	0	0
	12	12	0	0
	0	0	0	0
History	152	115	14	23

Games since
	Main 21	Standard 12		Rapid 0		Blitz 9
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	19	10.5	55.26	44.7	1686.1	1730.8
Standard	10	5.5	55	42.5	1696.2	1738.7
Rapid	0	0	0	0	0	0
Blitz	9	5	55.56	47.2	1674.8	1722
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	60	34.5	57.5	63.8	1593.2	1657
Standard	51	29.5	57.84	66.7	1578.8	1645.5
Rapid	0	0	0	0	0	0
Blitz	9	5	55.56	47.2	1674.8	1722

Date	Main	Standard	Rapid	Blitz
2025-11-01	1710.3	1693	1536.7	1568.6
2025-09-30	1700.5	1678.7	1536.7	1568.6
2025-09-01	1700.5	1678.7	1536.7	1568.6
2025-08-01	1700.5	1678.7	1536.7	1568.6
2025-07-01	1700.5	1678.7	1536.7	1568.6
2025-06-01	1700.5	1678.7	1536.7	1568.6
2025-05-01	1700.5	1678.7	1536.7	1568.6
2025-04-01	1698.7	1678.7	1536.7	1536.7
2025-03-01	1698.7	1678.7	1536.7	1536.7
2025-02-01	1698.7	1678.7	1536.7	1536.7
2025-01-01	1698.7	1678.7	1536.7	1536.7
2024-12-01	1698.7	1678.7	1536.7	1536.7
2024-11-01	1698.7	1678.7	1536.7	1536.7
2024-10-01	1698.7	1678.7	1536.7	1536.7
2024-09-01	1704.9	1683.5	1536.7	1536.7
2024-08-01	1704.9	1683.5	1536.7	1536.7
2024-07-01	1704.9	1683.5	1536.7	1536.7
2024-09-01	1704.9	1683.5	1536.7	1536.7
2024-05-01	1704.9	1683.5	1536.7	1536.7
2024-04-01	1704.9	1683.5	1536.7	1536.7
2024-03-01	1704.9	1683.5	1536.7	1536.7
2024-02-01	1704.9	1683.5	1536.7	1536.7
2024-01-01	1704.9	1683.5	1536.7	1536.7
2023-12-01	1630.7	1618.1	1536.7	1536.7

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	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	10	5.5	Yes	Analysis
2	2025 CT Chess Club Blitz Championship	2025-03-19	2025-03-19	Blitz	Cape Town (WCT)	9	9	5	Yes	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	10	5.5	Yes	Analysis
2	2025 CT Chess Club Blitz Championship	2025-03-19	2025-03-19	Blitz	Cape Town (WCT)	9	9	5	Yes	Analysis
3	CT League 2024 (A)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	2	0	Yes	Analysis
4	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	8	5	Yes	Analysis
5	Western Cape Club Championship 2022 (Tier 2)	2022-10-07	2022-10-09	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
6	2022 Western Province Club League (Premier)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	6	3.5	Yes	Analysis
7	2019 National Club Chess Championships (B)	2019-09-27	2019-09-29	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
8	2019 Western Province League (B)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	10	8	Yes	Analysis
9	2018 Western Province League (B)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	3	0	Yes	Analysis
10	Eldo Smart Memorial Rapid Tournament 2018	2018-06-16	2018-06-16	Rapid	Cape Town (WCT)	7	0	0	No	Analysis

#	Games	Start				End
1	13	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-08-10	rnd 5	type Standard	result 0.5	date 2019-09-29	rnd 6	type Standard	result 0.5
		Opponent Diamond, R (Ruben)				Opponent Talmarkes, AG (Andrew)
2	6	Tournament Cape Town Chess Federation Club League 2025				Tournament Cape Town Chess Federation Club League 2025
		date 2025-08-23	rnd 5	type Standard	result 1	date 2025-09-27	rnd 11	type Standard	result 1
		Opponent Salem, A (Abdarahim)				Opponent Makhubu, T (Thembisile)
3	5	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 1	type Standard	result 0.5	date 2023-08-26	rnd 8	type Standard	result 0.5
		Opponent De Jager, LJ (Luan)				Opponent Adriaan, RD (Rynauw)

#	Games	Start				End
1	13	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-08-10	rnd 5	type Standard	result 0.5	date 2019-09-29	rnd 6	type Standard	result 0.5
		Opponent Diamond, R (Ruben)				Opponent Talmarkes, AG (Andrew)
2	5	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 1	type Standard	result 0.5	date 2023-08-26	rnd 8	type Standard	result 0.5
		Opponent De Jager, LJ (Luan)				Opponent Adriaan, RD (Rynauw)
3	4	Tournament 2022 Western Province Club League				Tournament 2022 Western Province Club League
		date 2022-09-03	rnd 6	type Standard	result 1	date 2022-10-01	rnd 11	type Standard	result 1
		Opponent Jacobson, G (Gabriel)				Opponent Van Niekerk, MC (Megan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament 2025 CT Chess Club Blitz Championship				Tournament 2025 CT Chess Club Blitz Championship
		date 2025-03-19	rnd 9	type Blitz	result 1	date 2025-03-19	rnd 9	type Blitz	result 1
		Opponent Rogov, E (Evgenij)				Opponent Rogov, E (Evgenij)
2	1	Tournament 2025 CT Chess Club Blitz Championship				Tournament 2025 CT Chess Club Blitz Championship
		date 2025-03-19	rnd 7	type Blitz	result 1	date 2025-03-19	rnd 7	type Blitz	result 1
		Opponent Kieser, M (Michael)				Opponent Kieser, M (Michael)
3	1	Tournament 2025 CT Chess Club Blitz Championship				Tournament 2025 CT Chess Club Blitz Championship
		date 2025-03-19	rnd 5	type Blitz	result 1	date 2025-03-19	rnd 5	type Blitz	result 1
		Opponent Preston, W (Waylon)				Opponent Preston, W (Waylon)

#	Games	Start				End
1	6	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-09-07	rnd 11	type Standard	result 1	date 2019-09-29	rnd 5	type Standard	result 1
		Opponent Willenberg, RC (Roland)				Opponent Lamprecht, A (Andre)
2	4	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-10	rnd 6	type Standard	result 1	date 2019-08-24	rnd 9	type Standard	result 1
		Opponent Steenkamp, M (Malan)				Opponent Lotriet, BCD (Brandon)
3	3	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-08-19	rnd 5	type Standard	result 1	date 2023-08-26	rnd 7	type Standard	result 1
		Opponent Chironda, S (Sean Kudzai)				Opponent Mbendeni, S (Siyakudumisa Kenneth)

#	Games	Start				End
1	6	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-09-07	rnd 11	type Standard	result 1	date 2019-09-29	rnd 5	type Standard	result 1
		Opponent Willenberg, RC (Roland)				Opponent Lamprecht, A (Andre)
2	4	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-10	rnd 6	type Standard	result 1	date 2019-08-24	rnd 9	type Standard	result 1
		Opponent Steenkamp, M (Malan)				Opponent Lotriet, BCD (Brandon)
3	3	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-08-19	rnd 5	type Standard	result 1	date 2023-08-26	rnd 7	type Standard	result 1
		Opponent Chironda, S (Sean Kudzai)				Opponent Mbendeni, S (Siyakudumisa Kenneth)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament 2025 CT Chess Club Blitz Championship				Tournament 2025 CT Chess Club Blitz Championship
		date 2025-03-19	rnd 9	type Blitz	result 1	date 2025-03-19	rnd 9	type Blitz	result 1
		Opponent Rogov, E (Evgenij)				Opponent Rogov, E (Evgenij)
2	1	Tournament 2025 CT Chess Club Blitz Championship				Tournament 2025 CT Chess Club Blitz Championship
		date 2025-03-19	rnd 7	type Blitz	result 1	date 2025-03-19	rnd 7	type Blitz	result 1
		Opponent Kieser, M (Michael)				Opponent Kieser, M (Michael)
3	1	Tournament 2025 CT Chess Club Blitz Championship				Tournament 2025 CT Chess Club Blitz Championship
		date 2025-03-19	rnd 5	type Blitz	result 1	date 2025-03-19	rnd 5	type Blitz	result 1
		Opponent Preston, W (Waylon)				Opponent Preston, W (Waylon)

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	Palmer ,RN (Reegan)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Palmer ,RN (Reegan)	2	1789.9	1364.9	2	1777.1	1364.9	0	0	0	0	0	0
2	Fritz ,VJ (Virgil Jacobus)	1	1	425	1	1	425	0	0	0	0	0	0
2	Fritz ,VJ (Virgil Jacobus)	1	1574.9	1999.9	1	1573.2	1999.9	0	0	0	0	0	0
3	Jacobson ,G (Gabriel)	1	1	425	1	1	425	0	0	0	0	0	0
3	Jacobson ,G (Gabriel)	1	1342.4	1767.4	1	1344.4	1767.4	0	0	0	0	0	0
4	Lynch ,J (Justin)	1	1	425	1	1	425	0	0	0	0	0	0
4	Lynch ,J (Justin)	1	1814.3	2239.3	1	1812.3	2239.3	0	0	0	0	0	0
5	De Jager ,LJ (Luan Johannes)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	De Jager ,LJ (Luan Johannes)	1	1840.7	1840.7	1	1843.5	1840.7	0	0	0	0	0	0
6	Brown ,JR (John-Rodney)	1	1	425	1	1	425	0	0	0	0	0	0
6	Brown ,JR (John-Rodney)	1	1348.3	1773.3	1	1325.1	1773.3	0	0	0	0	0	0
7	Lielieveld ,F (Franco)	1	1	425	1	1	425	0	0	0	0	0	0
7	Lielieveld ,F (Franco)	1	1780.2	2205.2	1	1805.3	2205.2	0	0	0	0	0	0
8	Selema ,TG (Thato)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Selema ,TG (Thato)	1	1812.6	1387.6	1	1822.6	1387.6	0	0	0	0	0	0
9	Koopstadt ,RT (Rudy Trevor)	1	1	425	1	1	425	0	0	0	0	0	0
9	Koopstadt ,RT (Rudy Trevor)	1	1452.8	1877.8	1	1441.5	1877.8	0	0	0	0	0	0
10	Sithole ,A (Anoona)	1	1	425	1	1	425	0	0	0	0	0	0
10	Sithole ,A (Anoona)	1	1446.9	1871.9	1	1448.9	1871.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Koester, E (Euclides Euclides)

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Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms