Chess South Africa Ratings Database

PLAYER PAGE

Personal

Oerson, E (Ej)

Chess SA id

1020119388

FIDE id

Date of birth

2002-11-18 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-10-21

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1160.4	1226.4	1077.8	1200
Raw rating	1160.4	1226.4	1077.8	1200
Weighted rating	1159.7	1226.4	1076.8	1200
Weighted performance	681.9	0	0	0
Floor	700	726.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	175.4	159.7	197.3	165.8
Highest rating	1237.3 2023-05-01	1262 2023-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1226.4 2024-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1226.4 2025-04-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1237.3 2023-05-01	1262 2023-05-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1160.4	1226.4	1077.8	1200
Analysis
Rating	1160.4	1226.4	1077.8	1200
Raw rating	1160.4	1226.4	1077.8	1200
Weighted rating	1159.7	1226.4	1076.8
Weighted performance	681.9	0	0
K-factor	36	36	36	36
Floor	700	726.4	700	700
Max/Min rating change allowed	175.4	159.7	197.3	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	1160.4	1226.4	1077.8	1200
New weighted rating	1159.8	1226.4	1076.9	1200
New weighted performance	675.7	0	0	0
Temp new rating	1160.4	1226.4	1077.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1160.4	1226.4	1077.8	1200
New K-factor	36	36	36	36
New floor	700	726.4	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	14	5	9
	7	4	3
	0	0	0
History	36	9	27

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
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	36	12.5	34.72	-129.9	1206.7	1076.9
Standard	9	4	44.44	-47.2	1316	1268.8
Rapid	27	8.5	31.48	-157.4	1170.3	1012.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1160.4	1226.4	1077.8	1200
2025-09-30	1160.4	1226.4	1077.8	1200
2025-09-01	1160.4	1226.4	1077.8	1200
2025-08-01	1160.4	1226.4	1077.8	1200
2025-07-01	1160.4	1226.4	1077.8	1200
2025-06-01	1160.4	1226.4	1077.8	1200
2025-05-01	1160.4	1226.4	1077.8	1200
2025-04-01	1160.4	1226.4	1077.8	1200
2025-03-01	1160.4	1226.4	1077.8	1200
2025-02-01	1160.4	1226.4	1077.8	1200
2025-01-01	1158.5	1226.4	1074.8	1200
2024-12-01	1158.5	1226.4	1074.8	1200
2024-11-01	1158.5	1226.4	1074.8	1200
2024-10-01	1158.5	1226.4	1074.8	1200
2024-09-01	1158.5	1226.4	1074.8	1200
2024-08-01	1158.5	1226.4	1074.8	1200
2024-07-01	1158.5	1226.4	1074.8	1200
2024-09-01	1158.5	1226.4	1074.8	1200
2024-05-01	1158.5	1226.4	1074.8	1200
2024-04-01	1158.5	1226.4	1074.8	1200
2024-03-01	1158.5	1226.4	1074.8	1200
2024-02-01	1158.5	1226.4	1074.8	1200
2024-01-01	1158.5	1226.4	1074.8	1200
2023-12-01	1158.5	1226.4	1074.8	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	Bonnievale Open Rapid 2023 (Intermediate)	2023-10-21	2023-10-21	Rapid	Cape Winelands (WCW)	6	6	1	Yes	Analysis
2	Strategema 2023 (Open)	2023-05-13	2023-05-13	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Langeberg Schools Chess Trials 2023 (Open)	2023-02-11	2023-02-11	Rapid	Cape Winelands (WCW)	3	3	3	Yes	Analysis
4	Robertson Strategema Club 2022 (Open)	2022-10-29	2022-10-29	Standard	Cape Winelands (WCW)	5	4	1	Yes	Analysis
5	Strategema Chess Festival 2022 (Open)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	3	3	1	Yes	Analysis
6	Robertson Chess 2020 (U19)	2020-03-07	2020-03-07	Rapid	Cape Winelands (WCW)	5	5	0.5	Yes	Analysis
7	Cape Winelands Schools Trials 1 2020 (U18 Boys)	2020-02-15	2020-02-15	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
8	Robertson Strategema 2019 (U17)	2019-10-05	2019-10-05	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Grater, R (Robert)
2	3	Tournament Langeberg Schools Chess Trials 2023				Tournament Langeberg Schools Chess Trials 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Thompson, W (William)				Opponent Smit, A (Angelo)
3	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Adolf, C (Clifford)				Opponent Tshindeni, A (Avugile)

#	Games	Start				End
1	3	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Grater, R (Robert)
2	1	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 2	type Standard	result 1
		Opponent Uys, J (Jacques)				Opponent Uys, J (Jacques)

#	Games	Start				End
1	3	Tournament Langeberg Schools Chess Trials 2023				Tournament Langeberg Schools Chess Trials 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Thompson, W (William)				Opponent Smit, A (Angelo)
2	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Adolf, C (Clifford)				Opponent Tshindeni, A (Avugile)
3	1	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2023-10-21	rnd 3	type Rapid	result 1
		Opponent Van Niekerk, J (Johan)				Opponent Van Niekerk, J (Johan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Grater, R (Robert)
2	3	Tournament Langeberg Schools Chess Trials 2023				Tournament Langeberg Schools Chess Trials 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Thompson, W (William)				Opponent Smit, A (Angelo)
3	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Adolf, C (Clifford)				Opponent Tshindeni, A (Avugile)

#	Games	Start				End
1	3	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Grater, R (Robert)
2	1	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 2	type Standard	result 1
		Opponent Uys, J (Jacques)				Opponent Uys, J (Jacques)

#	Games	Start				End
1	3	Tournament Langeberg Schools Chess Trials 2023				Tournament Langeberg Schools Chess Trials 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Thompson, W (William)				Opponent Smit, A (Angelo)
2	2	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Adolf, C (Clifford)				Opponent Tshindeni, A (Avugile)
3	1	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2023-10-21	rnd 3	type Rapid	result 1
		Opponent Van Niekerk, J (Johan)				Opponent Van Niekerk, J (Johan)

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	Grater ,R (Robert)	2	1	0	1	1	425	1	0	-425	0	0	0
1	Grater ,R (Robert)	2	1183.2	1183.2	1	1189.4	1608.2	1	1154	758.2	0	0	0
2	Friesland ,A (Ashwin)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Friesland ,A (Ashwin)	2	1187.9	762.9	0	0	0	2	1177.7	762.9	0	0	0
3	Swanepoel ,A (Aschwin)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Swanepoel ,A (Aschwin)	2	1201.6	776.6	0	0	0	2	1130.2	776.6	0	0	0
4	Geldenhuis ,C (Chine)	1	1	425	1	1	425	0	0	0	0	0	0
4	Geldenhuis ,C (Chine)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Crotz ,G (Greagan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Crotz ,G (Greagan)	1	1446.5	1021.5	1	1368.6	1021.5	0	0	0	0	0	0
6	Davids ,JW (Jo-Wayne)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Davids ,JW (Jo-Wayne)	1	1403.3	978.3	1	1424.1	978.3	0	0	0	0	0	0
7	De Vries ,C (Cheslin)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	De Vries ,C (Cheslin)	1	1536.8	1111.8	1	1518.3	1111.8	0	0	0	0	0	0
8	Lirafu ,S (Siyambonga)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Lirafu ,S (Siyambonga)	1	1554.1	1129.1	1	1528.7	1129.1	0	0	0	0	0	0
9	Valla ,D (Dante)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Valla ,D (Dante)	1	1255.2	830.2	0	0	0	1	1200	830.2	0	0	0
10	Oerson ,H (Herlon)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
10	Oerson ,H (Herlon)	1	1146.9	1146.9	0	0	0	1	1123.2	1146.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Oerson, E (Ej)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms