Chess South Africa Ratings Database

PLAYER PAGE

Personal

Gerrits�, J (Jonathan)

Chess SA id

1110193632

FIDE id

Date of birth

2011-03-16 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1220.8	1219.5	1200	1200
Raw rating	1220.8	1219.5	1200	1200
Weighted rating	1215.6	1214.8	1200	1200
Weighted performance	0	0	0	0
Floor	720.8	719.5	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	161	161.3	165.8	165.8
Highest rating	1258.2 2024-02-01	1249.6 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1220.8 2025-03-01	1219.5 2025-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1220.8 2024-10-01	1219.5 2024-10-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1258.2 2024-02-01	1249.6 2024-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1220.8	1219.5	1200	1200
Analysis
Rating	1220.8	1219.5	1200	1200
Raw rating	1220.8	1219.5	1200	1200
Weighted rating	1215.6	1214.8	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	720.8	719.5	700	700
Max/Min rating change allowed	161	161.3	165.8	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	1220.8	1219.5	1200	1200
New weighted rating	1216.3	1215.5	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1220.8	1219.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1220.8	1219.5	1200	1200
New K-factor	36	36	36	36
New floor	720.8	719.5	700	700

Item	Main	Standard
	0	0
	6	6
	5	5
	0	0
	0	0
	0	0
History	11	11

Games since
	Main 11	Standard 11		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	6	2.5	41.67	-70.8	1363.6	1292.8
Standard	6	2.5	41.67	-70.8	1363.6	1292.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	5.5	50	0	1276.6	1276.6
Standard	11	5.5	50	0	1276.6	1276.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1220.8	1219.5	1200	1200
2025-09-01	1220.8	1219.5	1200	1200
2025-08-01	1220.8	1219.5	1200	1200
2025-07-01	1220.8	1219.5	1200	1200
2025-06-01	1220.8	1219.5	1200	1200
2025-05-01	1220.8	1219.5	1200	1200
2025-04-01	1220.8	1219.5	1200	1200
2025-03-01	1220.8	1219.5	1200	1200
2025-02-01	1210	1210	1200	1200
2025-01-01	1210	1210	1200	1200
2024-12-01	1210	1210	1200	1200
2024-11-01	1210	1210	1200	1200
2024-10-01	1210	1210	1200	1200
2024-09-01	1210	1210	1200	1200
2024-08-01	1210	1210	1200	1200
2024-07-01	1210	1210	1200	1200
2024-06-01	1210	1210	1200	1200
2024-08-01	1210	1210	1200	1200
2024-04-01	1210	1210	1200	1200
2024-03-01	1210	1210	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

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro North Schools Chess Individual Trials 2025 (U15 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro North Schools Chess Individual Trials 2025 (U15 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
2	North District School Trials 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Tumaka, A (Ahlumile)				Opponent Cloete, J (Joel)
2	2	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-08	rnd 2	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Kalenda, N (Nicodeme)				Opponent Zwayi, A (Amahle)
3	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 6	type Standard	result 0.5	date 2025-02-09	rnd 6	type Standard	result 0.5
		Opponent Truter, A (Albert)				Opponent Truter, A (Albert)

#	Games	Start				End
1	3	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Tumaka, A (Ahlumile)				Opponent Cloete, J (Joel)
2	2	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-08	rnd 2	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Kalenda, N (Nicodeme)				Opponent Zwayi, A (Amahle)
3	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 6	type Standard	result 0.5	date 2025-02-09	rnd 6	type Standard	result 0.5
		Opponent Truter, A (Albert)				Opponent Truter, A (Albert)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Tumaka, A (Ahlumile)				Opponent Cloete, J (Joel)
2	2	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-08	rnd 2	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Kalenda, N (Nicodeme)				Opponent Zwayi, A (Amahle)

#	Games	Start				End
1	3	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 1
		Opponent Tumaka, A (Ahlumile)				Opponent Cloete, J (Joel)
2	2	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-08	rnd 2	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Kalenda, N (Nicodeme)				Opponent Zwayi, A (Amahle)

No games found.

#	Games	Start				End

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	Smit ,D (Danie)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Smit ,D (Danie)	1	1177.1	752.1	1	1216	752.1	0	0	0	0	0	0
2	De Clerk ,J (Juan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	De Clerk ,J (Juan)	1	1255.8	830.8	1	1180.8	830.8	0	0	0	0	0	0
3	Vava ,L (Libongwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Vava ,L (Libongwe)	1	1128.3	703.3	1	1115.2	703.3	0	0	0	0	0	0
4	Els ,A (Aiden)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Els ,A (Aiden)	1	1473.5	1048.5	1	1464.4	1048.5	0	0	0	0	0	0
5	Tumaka ,A (Ahlumile)	1	1	425	1	1	425	0	0	0	0	0	0
5	Tumaka ,A (Ahlumile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Truter ,A (Albert)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Truter ,A (Albert)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
7	Kalenda ,N (Nicodeme)	1	1	425	1	1	425	0	0	0	0	0	0
7	Kalenda ,N (Nicodeme)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Zwayi ,A (Amahle)	1	1	425	1	1	425	0	0	0	0	0	0
8	Zwayi ,A (Amahle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Seyisi ,L (Luphindo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Seyisi ,L (Luphindo)	1	1130.6	1555.6	1	1117.6	1555.6	0	0	0	0	0	0
10	Salimu ,C (Chase)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Salimu ,C (Chase)	1	1852.4	1427.4	1	1850.9	1427.4	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

Gerrits�, J (Jonathan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms