Chess South Africa Ratings Database

PLAYER PAGE

Personal

Rostoll, J (Jaco)

Chess SA id

1850310841

FIDE id

Date of birth

1985-08-17 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1215.5	1209.6	1200	1191.9
Raw rating	1215.5	1209.6	1200	1191.9
Weighted rating	1211.8	1207.1	1200	1190.7
Weighted performance	0	0	0	0
Floor	715.5	709.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.2	163.6	165.8	167.7
Highest rating	1224.9 2024-11-01	1241 2024-11-01	1200 2024-09-01	1200 2024-09-01
Highest raw rating	1215.5 2024-11-01	1209.6 2024-11-01	1200 2024-09-01	1200 2024-09-01
Highest weighted rating	1215.5 2024-10-01	1206.2 2025-08-01	1200 2024-09-01	1200 2024-09-01
Highest weighted performance	1224.9 2024-11-01	1241 2024-11-01	1200 2024-09-01	1200 2024-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1215.5	1209.6	1200	1191.9
Analysis
Rating	1215.5	1209.6	1200	1191.9
Raw rating	1215.5	1209.6	1200	1191.9
Weighted rating	1211.8	1207.1	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	715.5	709.6	700	700
Max/Min rating change allowed	162.2	163.6	165.8	167.7
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	1215.5	1209.6	1200	1191.9
New weighted rating	1212.4	1207.5	1200	1190.6
New weighted performance	0	0	0	0
Temp new rating	1215.5	1209.6	1200	1191.9
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1215.5	1209.6	1200	1191.9
New K-factor	36	36	36	36
New floor	715.5	709.6	700	700

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	13	5	8
	0	0	0
	0	0	0
	0	0	0
History	13	5	8

Games since
	Main 13	Standard 5		Rapid 0		Blitz 8
Gender	Male
Age group	Adult
Region	Eden (WEG)
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	13	5	38.46	-98.1	1405.7	1307.6
Standard	5	2	40	-85	1339.5	1254.5
Rapid	0	0	0	0	0	0
Blitz	8	3	37.5	-106.2	1447.1	1340.8

Date	Main	Standard	Rapid	Blitz
2025-09-30	1215.5	1209.6	1200	1191.9
2025-09-01	1215.5	1209.6	1200	1191.9
2025-08-01	1215.5	1209.6	1200	1191.9
2025-07-01	1215.5	1209.6	1200	1191.9
2025-06-01	1215.5	1209.6	1200	1191.9
2025-05-01	1215.5	1209.6	1200	1191.9
2025-04-01	1215.5	1209.6	1200	1191.9
2025-03-01	1215.5	1209.6	1200	1191.9
2025-02-01	1215.5	1209.6	1200	1191.1
2025-01-01	1215.5	1209.6	1200	1175.6
2024-12-01	1215.5	1209.6	1200	1175.6
2024-11-01	1215.5	1209.6	1200	1175.6
2024-10-01	1208.9	1200	1200	1175.6
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	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	Eden Chess Union League 2024 (1st Division)	2024-10-12	2024-10-12	Standard	Eden (WEG)	5	5	2	Yes	Analysis
2	InterClub Blitz 4 2024	2024-09-04	2024-09-04	Blitz	Eden (WEG)	10	8	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Eden Chess Union League 2024				Tournament Eden Chess Union League 2024
		date 2024-10-12	rnd 2	type Standard	result 1	date 2024-10-12	rnd 3	type Standard	result 1
		Opponent Boto, L (Lukhona)				Opponent Van Staden, P (Pearson)
2	2	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 9	type Blitz	result 1	date 2024-09-04	rnd 10	type Blitz	result 1
		Opponent Petersen, S (Shenwin)				Opponent Petersen, S (Shenwin)
3	1	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 3	type Blitz	result 1	date 2024-09-04	rnd 3	type Blitz	result 1
		Opponent Quirk, T (Terence)				Opponent Quirk, T (Terence)

#	Games	Start				End
1	2	Tournament Eden Chess Union League 2024				Tournament Eden Chess Union League 2024
		date 2024-10-12	rnd 2	type Standard	result 1	date 2024-10-12	rnd 3	type Standard	result 1
		Opponent Boto, L (Lukhona)				Opponent Van Staden, P (Pearson)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 9	type Blitz	result 1	date 2024-09-04	rnd 10	type Blitz	result 1
		Opponent Petersen, S (Shenwin)				Opponent Petersen, S (Shenwin)
2	1	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 3	type Blitz	result 1	date 2024-09-04	rnd 3	type Blitz	result 1
		Opponent Quirk, T (Terence)				Opponent Quirk, T (Terence)

#	Games	Start				End
1	2	Tournament Eden Chess Union League 2024				Tournament Eden Chess Union League 2024
		date 2024-10-12	rnd 2	type Standard	result 1	date 2024-10-12	rnd 3	type Standard	result 1
		Opponent Boto, L (Lukhona)				Opponent Van Staden, P (Pearson)
2	2	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 9	type Blitz	result 1	date 2024-09-04	rnd 10	type Blitz	result 1
		Opponent Petersen, S (Shenwin)				Opponent Petersen, S (Shenwin)
3	1	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 3	type Blitz	result 1	date 2024-09-04	rnd 3	type Blitz	result 1
		Opponent Quirk, T (Terence)				Opponent Quirk, T (Terence)

#	Games	Start				End
1	2	Tournament Eden Chess Union League 2024				Tournament Eden Chess Union League 2024
		date 2024-10-12	rnd 2	type Standard	result 1	date 2024-10-12	rnd 3	type Standard	result 1
		Opponent Boto, L (Lukhona)				Opponent Van Staden, P (Pearson)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 9	type Blitz	result 1	date 2024-09-04	rnd 10	type Blitz	result 1
		Opponent Petersen, S (Shenwin)				Opponent Petersen, S (Shenwin)
2	1	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 3	type Blitz	result 1	date 2024-09-04	rnd 3	type Blitz	result 1
		Opponent Quirk, T (Terence)				Opponent Quirk, T (Terence)

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	Jafta ,S (Shaunley)	2	0	-425	0	0	0	0	0	0	2	0	-425
1	Jafta ,S (Shaunley)	2	1414.7	989.7	0	0	0	0	0	0	2	1240	989.7
2	Jaars ,T (Thomas)	2	0	-425	0	0	0	0	0	0	2	0	-425
2	Jaars ,T (Thomas)	2	1646.1	1221.1	0	0	0	0	0	0	2	1534.7	1221.1
3	Petersen ,S (Shenwin)	2	2	425	0	0	0	0	0	0	2	2	425
3	Petersen ,S (Shenwin)	2	1362.1	1787.1	0	0	0	0	0	0	2	950.5	1787.1
4	Quirk ,T (Terence)	2	1	0	0	0	0	0	0	0	2	1	0
4	Quirk ,T (Terence)	2	1365.5	1365.5	0	0	0	0	0	0	2	1240.6	1365.5
5	Mpuru ,T (Tebello)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mpuru ,T (Tebello)	1	1183.6	758.6	1	1172.8	758.6	0	0	0	0	0	0
6	Guyo ,I (Isheanesu)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Guyo ,I (Isheanesu)	1	1400.3	975.3	1	1386.3	975.3	0	0	0	0	0	0
7	Boto ,L (Lukhona)	1	1	425	1	1	425	0	0	0	0	0	0
7	Boto ,L (Lukhona)	1	1158.8	1583.8	1	1150	1583.8	0	0	0	0	0	0
8	Van Staden ,P (Pearson)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Staden ,P (Pearson)	1	1571.1	1996.1	1	1574.2	1996.1	0	0	0	0	0	0
9	Rostoll ,A (Arno)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Rostoll ,A (Arno)	1	1383.9	958.9	1	1389.7	958.9	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

Rostoll, J (Jaco)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms