Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koeberg, E (Ezay)

Chess SA id

1040098750

FIDE id

Date of birth

2004-01-03 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-02-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1120.6	1083.3	1194	1200
Raw rating	1120.6	1083.3	1194	1200
Weighted rating	1120.6	1083.3	1194	1200
Weighted performance	476.4	339.7	0	0
Floor	702.7	703.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	185.7	195.8	167.2	165.8
Highest rating	1202.7 2018-03-01	1203.2 2018-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1202.7 2018-03-01	1203.2 2018-03-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1202.7 2019-02-01	1203.2 2019-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1120.6	1083.3	1194	1200
Analysis
Rating	1120.6	1083.3	1194	1200
Raw rating	1120.6	1083.3	1194	1200
Weighted rating	1120.6	1083.3	1194
Weighted performance	476.4	339.7	0
K-factor	36	36	36	36
Floor	702.7	703.2	700	700
Max/Min rating change allowed	185.7	195.8	167.2	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	1120.6	1083.3	1194	1200
New weighted rating	1120.6	1083.3	1194	1200
New weighted performance	476.1	339.4	0	0
Temp new rating	1120.6	1083.3	1194	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1120.6	1083.3	1194	1200
New K-factor	36	36	36	36
New floor	702.7	703.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	10	5	5
	0	0	0
History	29	24	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Mangaung (FMB)
Province	Free State (FS)
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	29	14.5	50	0	1079.4	1079.4
Standard	24	11.5	47.92	-17.7	1051.3	1033.5
Rapid	5	3	60	85	1214.5	1299.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1120.6	1083.3	1194	1200
2025-09-01	1120.6	1083.3	1194	1200
2025-08-01	1120.6	1083.3	1194	1200
2025-07-01	1120.6	1083.3	1194	1200
2025-06-01	1120.6	1083.3	1194	1200
2025-05-01	1120.6	1083.3	1194	1200
2025-04-01	1120.6	1083.3	1194	1200
2025-03-01	1120.6	1083.3	1194	1200
2025-02-01	1120.6	1083.3	1194	1200
2025-01-01	1120.6	1083.3	1194	1200
2024-12-01	1120.6	1083.3	1194	1200
2024-11-01	1120.6	1083.3	1194	1200
2024-10-01	1120.6	1083.3	1194	1200
2024-09-01	1120.6	1083.3	1194	1200
2024-08-01	1120.6	1083.3	1194	1200
2024-07-01	1120.6	1083.3	1194	1200
2024-06-01	1120.6	1083.3	1194	1200
2024-08-01	1120.6	1083.3	1194	1200
2024-04-01	1120.6	1083.3	1194	1200
2024-03-01	1120.6	1083.3	1194	1200
2024-02-01	1120.6	1083.3	1194	1200
2024-01-01	1120.6	1083.3	1194	1200
2023-12-01	1120.6	1083.3	1194	1200
2023-11-01	1120.6	1083.3	1194	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	Bloemfontein Schools League 2022 (U19+Open)	2022-02-25	2022-02-25	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Grey College Team Championship 2022 (A)	2022-02-18	2022-02-19	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
3	High School League Tournament 2020 (U17)	2020-02-08	2020-02-08	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
4	Grey College Team Championship 2020 (B)	2020-01-31	2020-02-01	Standard	Mangaung (FMB)	5	4	1	Yes	Analysis
5	Grey College Team Championship 2019 (B)	2019-02-22	2019-02-23	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Grey College Inter Team Chess Tournament 2018 (B)	2018-02-23	2018-02-24	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Bloemfontein Schools League 2022				Tournament Bloemfontein Schools League 2022
		date 2022-02-25	rnd 3	type Rapid	result 1	date 2022-02-25	rnd 4	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frederick)				Opponent Louw, T (Tshepang)
2	2	Tournament High School League Tournament 2020				Tournament High School League Tournament 2020
		date 2020-02-08	rnd 3	type Standard	result 1	date 2020-02-08	rnd 4	type Standard	result 0.5
		Opponent Neethling, A (Andre)				Opponent Gerber, M (Michar)
3	2	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 1	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Oktober, J (Jamian)				Opponent Mthimkulu, K (Kenneth)

#	Games	Start				End
1	2	Tournament High School League Tournament 2020				Tournament High School League Tournament 2020
		date 2020-02-08	rnd 3	type Standard	result 1	date 2020-02-08	rnd 4	type Standard	result 0.5
		Opponent Neethling, A (Andre)				Opponent Gerber, M (Michar)
2	2	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 1	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Oktober, J (Jamian)				Opponent Mthimkulu, K (Kenneth)
3	2	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 3	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Balade, J (Jonnayen)				Opponent Maritz, R (Ragel)

#	Games	Start				End
1	2	Tournament Bloemfontein Schools League 2022				Tournament Bloemfontein Schools League 2022
		date 2022-02-25	rnd 3	type Rapid	result 1	date 2022-02-25	rnd 4	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frederick)				Opponent Louw, T (Tshepang)
2	1	Tournament Bloemfontein Schools League 2022				Tournament Bloemfontein Schools League 2022
		date 2022-02-25	rnd 1	type Rapid	result 1	date 2022-02-25	rnd 1	type Rapid	result 1
		Opponent Molefe, L (Lesley)				Opponent Molefe, L (Lesley)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Bloemfontein Schools League 2022				Tournament Bloemfontein Schools League 2022
		date 2022-02-25	rnd 3	type Rapid	result 1	date 2022-02-25	rnd 4	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frederick)				Opponent Louw, T (Tshepang)
2	2	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 1	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Oktober, J (Jamian)				Opponent Mthimkulu, K (Kenneth)
3	2	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 3	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Balade, J (Jonnayen)				Opponent Maritz, R (Ragel)

#	Games	Start				End
1	2	Tournament Grey College Team Championship 2019				Tournament Grey College Team Championship 2019
		date 2019-02-22	rnd 1	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Oktober, J (Jamian)				Opponent Mthimkulu, K (Kenneth)
2	2	Tournament Grey College Inter Team Chess Tournament 2018				Tournament Grey College Inter Team Chess Tournament 2018
		date 2018-02-24	rnd 3	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Balade, J (Jonnayen)				Opponent Maritz, R (Ragel)
3	1	Tournament Grey College Team Championship 2022				Tournament Grey College Team Championship 2022
		date 2022-02-19	rnd 4	type Standard	result 1	date 2022-02-19	rnd 4	type Standard	result 1
		Opponent Pretorius, WJM (Martienus)				Opponent Pretorius, WJM (Martienus)

#	Games	Start				End
1	2	Tournament Bloemfontein Schools League 2022				Tournament Bloemfontein Schools League 2022
		date 2022-02-25	rnd 3	type Rapid	result 1	date 2022-02-25	rnd 4	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frederick)				Opponent Louw, T (Tshepang)
2	1	Tournament Bloemfontein Schools League 2022				Tournament Bloemfontein Schools League 2022
		date 2022-02-25	rnd 1	type Rapid	result 1	date 2022-02-25	rnd 1	type Rapid	result 1
		Opponent Molefe, L (Lesley)				Opponent Molefe, L (Lesley)

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	Tatolo ,K (Komane)	1	1	425	1	1	425	0	0	0	0	0	0
1	Tatolo ,K (Komane)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Mogaecho ,GK (Gomolemo Kaelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Mogaecho ,GK (Gomolemo Kaelo)	1	800.6	375.6	1	798.7	375.6	0	0	0	0	0	0
3	Pretorius ,WJM (Martienus)	1	1	425	1	1	425	0	0	0	0	0	0
3	Pretorius ,WJM (Martienus)	1	1145.1	1570.1	1	1170	1570.1	0	0	0	0	0	0
4	Willemse ,R (Riken)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Willemse ,R (Riken)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Arlow ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Arlow ,D (Daniel)	1	1390.5	965.5	1	1395.2	965.5	0	0	0	0	0	0
6	Linde ,B (Brendan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Linde ,B (Brendan)	1	715.6	1140.6	1	715.6	1140.6	0	0	0	0	0	0
7	Venter ,K (Kean)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Venter ,K (Kean)	1	500	75	1	500	75	0	0	0	0	0	0
8	Motshweneng ,G (Goitumetswe)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Motshweneng ,G (Goitumetswe)	1	778.8	353.8	1	763.8	353.8	0	0	0	0	0	0
9	Mazibuko ,T (Thembinkosi)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mazibuko ,T (Thembinkosi)	1	1200.1	775.1	1	1191.8	775.1	0	0	0	0	0	0
10	Pretorius ,S (Sebastian)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Pretorius ,S (Sebastian)	1	1146.2	721.2	1	1131.6	721.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Koeberg, E (Ezay)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms