Chess South Africa Ratings Database

PLAYER PAGE

Personal

Boshoff, E (Ernst)

Chess SA id

1770144450

FIDE id

Date of birth

1977-04-17 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1318.4	1309.9	817.3	659.2
Raw rating	1318.4	1309.9	817.3	659.2
Weighted rating	1312.6	1303.6	814.9	658.5
Weighted performance	0	0	0	0
Floor	818.4	809.9	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	140.1	141.8	286	358.3
Highest rating	1391.4 2022-09-01	1417.6 2022-09-01	1541 2022-09-01	1200 2020-01-01
Highest raw rating	1318.4 2024-02-01	1309.9 2024-02-01	817.3 2024-02-01	659.2 2024-02-01
Highest weighted rating	1298.9 2025-08-01	1309.9 2024-11-01	817.3 2024-11-01	659.2 2024-11-01
Highest weighted performance	1391.4 2022-09-01	1417.6 2022-09-01	1541 2022-09-01	1200 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1318.4	1309.9	817.3	659.2
Analysis
Rating	1318.4	1309.9	817.3	659.2
Raw rating	1318.4	1309.9	817.3	659.2
Weighted rating	1312.6	1303.6	814.9
Weighted performance	0	0	0
K-factor	36	36	40	40
Floor	818.4	809.9	500	500
Max/Min rating change allowed	140.1	141.8	286	358.3
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	1318.4	1309.9	817.3	659.2
New weighted rating	1316.5	1307.8	816.5	659
New weighted performance	0	0	0	0
Temp new rating	1318.4	1309.9	817.3	659.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1318.4	1309.9	817.3	659.2
New K-factor	36	36	40	40
New floor	818.4	809.9	500	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	2	2	0	0
	22	11	3	8
	0	0	0	0
History	24	13	3	8

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
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	24	9.5	39.58	-88.5	1454.4	1365.9
Standard	13	4.5	34.62	-130.8	1489.2	1358.5
Rapid	3	2	66.67	141.7	1362.2	1503.9
Blitz	8	3	37.5	-106.2	1432.5	1326.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1318.4	1309.9	817.3	659.2
2025-09-01	1318.4	1309.9	817.3	659.2
2025-08-01	1318.4	1309.9	817.3	659.2
2025-07-01	1318.4	1309.9	817.3	659.2
2025-06-01	1318.4	1309.9	817.3	659.2
2025-05-01	1318.4	1309.9	817.3	659.2
2025-04-01	1318.4	1309.9	817.3	659.2
2025-03-01	1318.4	1309.9	817.3	659.2
2025-02-01	1318.4	1309.9	817.3	659.2
2025-01-01	1318.4	1309.9	817.3	659.2
2024-12-01	1318.4	1309.9	817.3	659.2
2024-11-01	1318.4	1309.9	817.3	659.2
2024-10-01	1318.4	1309.9	817.3	659.2
2024-09-01	1318.4	1309.9	817.3	659.2
2024-08-01	1318.4	1309.9	817.3	659.2
2024-07-01	1318.4	1309.9	817.3	659.2
2024-06-01	1318.4	1309.9	817.3	659.2
2024-08-01	1318.4	1309.9	817.3	659.2
2024-04-01	1318.4	1309.9	817.3	659.2
2024-03-01	1318.4	1309.9	817.3	659.2
2024-02-01	1318.4	1309.9	817.3	659.2
2024-01-01	1318.4	1309.9	817.3	659.2
2023-12-01	731.2	677.6	579.6	587.6
2023-11-01	731.2	677.6	579.6	587.6

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	Randburg New Year Swiss 2023	2023-01-31	2023-03-14	Standard	Johannesburg Metro (GJM)	7	2	1	Yes	Analysis
2	Randburg Summer Swiss 2022	2022-10-25	2022-12-06	Standard	Johannesburg Metro (GJM)	7	4	1	Yes	Analysis
3	Randburg Spring Rapid 2022	2022-09-20	2022-09-27	Rapid	Johannesburg Metro (GJM)	6	3	2	Yes	Analysis
4	Randburg Club Championships Swiss 2022	2022-07-19	2022-09-06	Standard	Johannesburg Metro (GJM)	7	7	2.5	Yes	Analysis
5	JMC Blitz Open 8 August 2022 (A)	2022-08-08	2022-08-08	Blitz	Johannesburg Metro (GJM)	9	8	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Randburg Spring Rapid 2022				Tournament Randburg Spring Rapid 2022
		date 2022-09-27	rnd 4	type Rapid	result 1	date 2022-09-27	rnd 5	type Rapid	result 1
		Opponent Molema, W (Warner)				Opponent Kandengwa, M (Moses)
2	2	Tournament Randburg Club Championships Swiss 2022				Tournament Randburg Club Championships Swiss 2022
		date 2022-07-26	rnd 2	type Standard	result 1	date 2022-08-02	rnd 3	type Standard	result 0.5
		Opponent Kathan, P (Prakash)				Opponent Snyckers, FA (Frank)
3	1	Tournament Randburg New Year Swiss 2023				Tournament Randburg New Year Swiss 2023
		date 2023-02-14	rnd 3	type Standard	result 1	date 2023-02-14	rnd 3	type Standard	result 1
		Opponent Tak, R (Rannveer)				Opponent Tak, R (Rannveer)

#	Games	Start				End
1	2	Tournament Randburg Club Championships Swiss 2022				Tournament Randburg Club Championships Swiss 2022
		date 2022-07-26	rnd 2	type Standard	result 1	date 2022-08-02	rnd 3	type Standard	result 0.5
		Opponent Kathan, P (Prakash)				Opponent Snyckers, FA (Frank)
2	1	Tournament Randburg New Year Swiss 2023				Tournament Randburg New Year Swiss 2023
		date 2023-02-14	rnd 3	type Standard	result 1	date 2023-02-14	rnd 3	type Standard	result 1
		Opponent Tak, R (Rannveer)				Opponent Tak, R (Rannveer)
3	1	Tournament Randburg Summer Swiss 2022				Tournament Randburg Summer Swiss 2022
		date 2022-11-29	rnd 6	type Standard	result 1	date 2022-11-29	rnd 6	type Standard	result 1
		Opponent Molema, W (Warner)				Opponent Molema, W (Warner)

#	Games	Start				End
1	2	Tournament Randburg Spring Rapid 2022				Tournament Randburg Spring Rapid 2022
		date 2022-09-27	rnd 4	type Rapid	result 1	date 2022-09-27	rnd 5	type Rapid	result 1
		Opponent Molema, W (Warner)				Opponent Kandengwa, M (Moses)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Randburg Spring Rapid 2022				Tournament Randburg Spring Rapid 2022
		date 2022-09-27	rnd 4	type Rapid	result 1	date 2022-09-27	rnd 5	type Rapid	result 1
		Opponent Molema, W (Warner)				Opponent Kandengwa, M (Moses)
2	1	Tournament Randburg New Year Swiss 2023				Tournament Randburg New Year Swiss 2023
		date 2023-02-14	rnd 3	type Standard	result 1	date 2023-02-14	rnd 3	type Standard	result 1
		Opponent Tak, R (Rannveer)				Opponent Tak, R (Rannveer)
3	1	Tournament Randburg Summer Swiss 2022				Tournament Randburg Summer Swiss 2022
		date 2022-11-29	rnd 6	type Standard	result 1	date 2022-11-29	rnd 6	type Standard	result 1
		Opponent Molema, W (Warner)				Opponent Molema, W (Warner)

#	Games	Start				End
1	1	Tournament Randburg New Year Swiss 2023				Tournament Randburg New Year Swiss 2023
		date 2023-02-14	rnd 3	type Standard	result 1	date 2023-02-14	rnd 3	type Standard	result 1
		Opponent Tak, R (Rannveer)				Opponent Tak, R (Rannveer)
2	1	Tournament Randburg Summer Swiss 2022				Tournament Randburg Summer Swiss 2022
		date 2022-11-29	rnd 6	type Standard	result 1	date 2022-11-29	rnd 6	type Standard	result 1
		Opponent Molema, W (Warner)				Opponent Molema, W (Warner)
3	1	Tournament Randburg Club Championships Swiss 2022				Tournament Randburg Club Championships Swiss 2022
		date 2022-08-23	rnd 5	type Standard	result 1	date 2022-08-23	rnd 5	type Standard	result 1
		Opponent Savage, NR (Neil)				Opponent Savage, NR (Neil)

#	Games	Start				End
1	2	Tournament Randburg Spring Rapid 2022				Tournament Randburg Spring Rapid 2022
		date 2022-09-27	rnd 4	type Rapid	result 1	date 2022-09-27	rnd 5	type Rapid	result 1
		Opponent Molema, W (Warner)				Opponent Kandengwa, M (Moses)

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	Kleyn ,AE (Andrew Edward)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Kleyn ,AE (Andrew Edward)	2	1698.8	1273.8	2	1686.9	1273.8	0	0	0	0	0	0
2	Mendelsohn ,DC (David Charles)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Mendelsohn ,DC (David Charles)	2	1625.2	1200.2	2	1624.4	1200.2	0	0	0	0	0	0
3	Kathan ,P (Prakash)	2	1	0	2	1	0	0	0	0	0	0	0
3	Kathan ,P (Prakash)	2	1203.6	1203.6	2	1199.4	1203.6	0	0	0	0	0	0
4	Molema ,W (Warner)	2	2	425	1	1	425	1	1	425	0	0	0
4	Molema ,W (Warner)	2	1166.6	1591.6	1	1196.3	1591.6	1	1192	1591.6	0	0	0
5	Tak ,R (Rannveer)	1	1	425	1	1	425	0	0	0	0	0	0
5	Tak ,R (Rannveer)	1	1367.8	1792.8	1	1379.8	1792.8	0	0	0	0	0	0
6	Snyckers ,FA (Frank Alexander)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Snyckers ,FA (Frank Alexander)	1	1547.5	1547.5	1	1547.2	1547.5	0	0	0	0	0	0
7	Essop ,H (Haroon)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Essop ,H (Haroon)	1	1398.7	973.7	1	1393.1	973.7	0	0	0	0	0	0
8	Savage ,NR (Neil Robinson)	1	1	425	1	1	425	0	0	0	0	0	0
8	Savage ,NR (Neil Robinson)	1	1481.3	1906.3	1	1479.7	1906.3	0	0	0	0	0	0
9	Hangelbroek ,P (Peter)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Hangelbroek ,P (Peter)	1	1526.4	1101.4	1	1540.5	1101.4	0	0	0	0	0	0
10	Durow ,NL (Neil)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Durow ,NL (Neil)	1	1801	1376	1	1801.7	1376	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Boshoff, E (Ernst)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms