Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, J (Jonathan)

Chess SA id

105078148

FIDE id

Date of birth

2005-02-04 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1241.4	1234.6	523.6	523.6
Raw rating	1240.9	1234	523.6	523.6
Weighted rating	1241.4	1234.6	523.6	523.6
Weighted performance	1065	1061.9	0	0
Floor	750.7	749.5	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	156.4	158	434.7	434.7
Highest rating	1250.7 2025-03-01	1249.5 2023-03-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1250.7 2025-03-01	1249.5 2023-03-01	523.6 2024-02-01	523.6 2024-02-01
Highest weighted rating	1250.7 2025-03-01	1249.5 2025-03-01	523.6 2024-11-01	523.6 2024-11-01
Highest weighted performance	1224.4 2019-04-01	1216.1 2019-04-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.2	0.2	0	0
New rating	1241.6	1234.7	523.6	523.6
Analysis
Rating	1241.4	1234.6	523.6	523.6
Raw rating	1240.9	1234	523.6	523.6
Weighted rating	1241.4	1234.6	523.6
Weighted performance	1065	1061.9	0
K-factor	36	36	40	40
Floor	750.7	749.5	500	500
Max/Min rating change allowed	156.4	158	434.7	434.7
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	1240.9	1234	523.6	523.6
New weighted rating	1241.6	1234.7	523.6	523.6
New weighted performance	1064.6	1061.5	0	0
Temp new rating	1241.6	1234.7	523.6	523.6
Temp new rating +/-	0.2	0.2	0	0
Final new rating +/-	0.2	0.2	0	0
New rating	1241.6	1234.7	523.6	523.6
New K-factor	36	36	40	40
New floor	750.7	749.5	500	500

Item	Main	Standard
	0	0
	11	11
	21	21
	10	10
	10	10
	0	0
History	130	130

Games since
	Main 32	Standard 32		Rapid 0		Blitz 0
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	3655		1034		369
Male	2786		715		249
Adult	540		112		16
Adult Male	488		100		15
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	11	4.5	40.91	-77.3	1261.7	1184.4
Standard	11	4.5	40.91	-77.3	1261.7	1184.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	90	50.5	56.11	51.9	1172.5	1224.4
Standard	90	50.5	56.11	51.9	1172.5	1224.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1240.9	1234	523.6	523.6
2025-09-01	1240.9	1234	523.6	523.6
2025-08-01	1240.9	1234	523.6	523.6
2025-07-01	1240.5	1233.7	523.6	523.6
2025-06-01	1240.1	1233.3	523.6	523.6
2025-05-01	1239.6	1232.8	523.6	523.6
2025-04-01	1237.7	1230.7	523.6	523.6
2025-03-01	1250.7	1245.8	523.6	523.6
2025-02-01	1244.1	1236.6	523.6	523.6
2025-01-01	1244.1	1236.6	523.6	523.6
2024-12-01	1244.1	1236.6	523.6	523.6
2024-11-01	1244.1	1236.6	523.6	523.6
2024-10-01	1244.1	1236.6	523.6	523.6
2024-09-01	1244.1	1236.6	523.6	523.6
2024-08-01	1244.1	1236.6	523.6	523.6
2024-07-01	1244.1	1236.6	523.6	523.6
2024-06-01	1244.1	1236.6	523.6	523.6
2024-08-01	1244.1	1236.6	523.6	523.6
2024-04-01	1243.5	1240.2	523.6	523.6
2024-03-01	1222.3	1216.4	523.6	523.6
2024-02-01	1222.3	1216.4	523.6	523.6
2024-01-01	1222.3	1216.4	523.6	523.6
2023-12-01	1222.3	1216.4	523.6	523.6
2023-11-01	1222.3	1216.4	523.6	523.6

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	Eden Schools Chess Trials 1 2025 (U19 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
2	Oudussa Trials 2025 (U19)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	3	1	Yes	Analysis
3	Oudussa Trials 2 2025 (U19 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden Schools Chess Trials 1 2025 (U19 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
2	Oudussa Trials 2025 (U19)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	3	1	Yes	Analysis
3	Oudussa Trials 2 2025 (U19 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	4	2	Yes	Analysis
4	Eden Chess Trials 2 2024 (U20)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	4	Yes	Analysis
5	Western Cape HS Individuals Championship 2024 (U20 Boys+Girls)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
6	Eden School Chess Trials 1 2024 (U20 Mix)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
7	Eden Trials 2+3 2023 (U20)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	5	2.5	Yes	Analysis
8	Eden Trails 1 2023 (U19 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	0	0	No	Analysis
9	Oudussa Proewe 1 2023 (U19 Boys)	2023-02-11	2023-02-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
10	Eden Proewe 2 2022 (O18 Seuns)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	2	Yes	Analysis
11	Eden Proewe 1 2022 (O18 Seuns)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
12	Eden Schools Closed Trials 1 2020 (U15 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	3	Yes	Analysis
13	Oudtshoorn Proewe 1 2020 (O15)	2020-02-15	2020-02-15	Standard	Eden (WEG)	5	5	4	Yes	Analysis
14	Eden Trials 3 2019 (U16 Open)	2019-05-11	2019-05-11	Standard	Eden (WEG)	5	5	2	Yes	Analysis
15	Eden Trials 2 2019 (U16 Open)	2019-04-13	2019-04-13	Standard	Eden (WEG)	5	4	3	Yes	Analysis
16	Eden Trials 1 2019 (U16 Open)	2019-03-02	2019-03-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
17	Oudtshoorn Trials 3 2019 (U16)	2019-02-16	2019-02-16	Standard	Eden (WEG)	5	5	3	Yes	Analysis
18	Oudtshoorn Trials 2 2019 (U16)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
19	Oudtshoorn Trials 1 2019 (U16)	2019-01-19	2019-01-19	Standard	Eden (WEG)	5	4	2.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Oudtshoorn Trials 1 2019				Tournament Oudtshoorn Trials 2 2019
		date 2019-01-19	rnd 3	type Standard	result 0.5	date 2019-02-09	rnd 3	type Standard	result 1
		Opponent Campher, L (Luwiaan)				Opponent Arries, J (Jodin)
2	4	Tournament Eden Chess Trials 2 2024				Tournament Eden Chess Trials 2 2024
		date 2024-04-13	rnd 4	type Standard	result 0.5	date 2024-04-20	rnd 7	type Standard	result 1
		Opponent Petersen, JD (John-Wayne)				Opponent Ribeiro, E (Enrique)
3	4	Tournament Oudussa Proewe 1 2023				Tournament Oudussa Proewe 1 2023
		date 2023-02-11	rnd 1	type Standard	result 1	date 2023-02-11	rnd 4	type Standard	result 1
		Opponent Ribeire, E (Enriqua)				Opponent Linters, S (Stephiano)

#	Games	Start				End
1	6	Tournament Oudtshoorn Trials 1 2019				Tournament Oudtshoorn Trials 2 2019
		date 2019-01-19	rnd 3	type Standard	result 0.5	date 2019-02-09	rnd 3	type Standard	result 1
		Opponent Campher, L (Luwiaan)				Opponent Arries, J (Jodin)
2	4	Tournament Eden Chess Trials 2 2024				Tournament Eden Chess Trials 2 2024
		date 2024-04-13	rnd 4	type Standard	result 0.5	date 2024-04-20	rnd 7	type Standard	result 1
		Opponent Petersen, JD (John-Wayne)				Opponent Ribeiro, E (Enrique)
3	4	Tournament Oudussa Proewe 1 2023				Tournament Oudussa Proewe 1 2023
		date 2023-02-11	rnd 1	type Standard	result 1	date 2023-02-11	rnd 4	type Standard	result 1
		Opponent Ribeire, E (Enriqua)				Opponent Linters, S (Stephiano)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Oudtshoorn Trials 1 2019				Tournament Oudtshoorn Trials 2 2019
		date 2019-01-19	rnd 4	type Standard	result 1	date 2019-02-09	rnd 3	type Standard	result 1
		Opponent Scholtz, L (Lidime-Arno)				Opponent Arries, J (Jodin)
2	4	Tournament Oudussa Proewe 1 2023				Tournament Oudussa Proewe 1 2023
		date 2023-02-11	rnd 1	type Standard	result 1	date 2023-02-11	rnd 4	type Standard	result 1
		Opponent Ribeire, E (Enriqua)				Opponent Linters, S (Stephiano)
3	3	Tournament Oudtshoorn Proewe 1 2020				Tournament Eden Schools Closed Trials 1 2020
		date 2020-02-15	rnd 4	type Standard	result 1	date 2020-03-07	rnd 1	type Standard	result 1
		Opponent Benedito, E (Enrique)				Opponent Mkodoyi, C (Christian)

#	Games	Start				End
1	5	Tournament Oudtshoorn Trials 1 2019				Tournament Oudtshoorn Trials 2 2019
		date 2019-01-19	rnd 4	type Standard	result 1	date 2019-02-09	rnd 3	type Standard	result 1
		Opponent Scholtz, L (Lidime-Arno)				Opponent Arries, J (Jodin)
2	4	Tournament Oudussa Proewe 1 2023				Tournament Oudussa Proewe 1 2023
		date 2023-02-11	rnd 1	type Standard	result 1	date 2023-02-11	rnd 4	type Standard	result 1
		Opponent Ribeire, E (Enriqua)				Opponent Linters, S (Stephiano)
3	3	Tournament Oudtshoorn Proewe 1 2020				Tournament Eden Schools Closed Trials 1 2020
		date 2020-02-15	rnd 4	type Standard	result 1	date 2020-03-07	rnd 1	type Standard	result 1
		Opponent Benedito, E (Enrique)				Opponent Mkodoyi, C (Christian)

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	Kiewiet ,M (Marvin)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Kiewiet ,M (Marvin)	3	1315.6	890.6	3	1287.8	890.6	0	0	0	0	0	0
2	Mostert ,R (Richard)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Mostert ,R (Richard)	3	1118.7	1260.4	3	1110.6	1260.4	0	0	0	0	0	0
3	Petersen ,JD (John-Wayne Dwight)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Petersen ,JD (John-Wayne Dwight)	2	1482.8	1270.2	2	1475.5	1270.2	0	0	0	0	0	0
4	Goliath ,P (Peterianho)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Goliath ,P (Peterianho)	2	1297.1	872.1	2	1294.1	872.1	0	0	0	0	0	0
5	Cremer ,L (Leah)	2	2	425	2	2	425	0	0	0	0	0	0
5	Cremer ,L (Leah)	2	1147.3	1572.3	2	1137.2	1572.3	0	0	0	0	0	0
6	Daniels ,K (Keanu)	2	1	0	2	1	0	0	0	0	0	0	0
6	Daniels ,K (Keanu)	2	1016	1016	2	1013.2	1016	0	0	0	0	0	0
7	Arries ,J (Jodin)	2	1	0	2	1	0	0	0	0	0	0	0
7	Arries ,J (Jodin)	2	915.8	915.8	2	915.6	915.8	0	0	0	0	0	0
8	Jacobs ,P (Pernell)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Jacobs ,P (Pernell)	2	1524.5	1099.5	2	1514	1099.5	0	0	0	0	0	0
9	Rhode ,D (Duzade)	2	1	0	2	1	0	0	0	0	0	0	0
9	Rhode ,D (Duzade)	2	1205.7	1205.7	2	1205.6	1205.7	0	0	0	0	0	0
10	Claassen ,R (Ruwaldo)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Claassen ,R (Ruwaldo)	2	1487.1	1062.1	2	1465.2	1062.1	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

Botha, J (Jonathan)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms