Chess South Africa Ratings Database

PLAYER PAGE

Personal

Joubert, A (Antonio)

Chess SA id

106091562

FIDE id

Date of birth

2006-07-30 (U20)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1187.9	1158.4	1202.9	1200
Raw rating	1187.9	1158.4	1202.9	1200
Weighted rating	1182.3	1158.4	1194.7	1200
Weighted performance	704.9	623.7	0	0
Floor	700	700	702.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.7	175.9	165.1	165.8
Highest rating	1200 2018-02-01	1200 2018-10-01	1202.9 2025-09-30	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1202.9 2025-09-30	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1187.9	1158.4	1202.9	1200
Analysis
Rating	1187.9	1158.4	1202.9	1200
Raw rating	1187.9	1158.4	1202.9	1200
Weighted rating	1182.3	1158.4	1194.7
Weighted performance	704.9	623.7	0
K-factor	36	36	36	36
Floor	700	700	702.9	700
Max/Min rating change allowed	168.7	175.9	165.1	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	1187.9	1158.4	1202.9	1200
New weighted rating	1182.8	1158.4	1195.4	1200
New weighted performance	698.1	617	0	0
Temp new rating	1187.9	1158.4	1202.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1187.9	1158.4	1202.9	1200
New K-factor	36	36	36	36
New floor	700	700	702.9	700

Item	Main	Standard	Rapid
	0	0	0
	2	0	2
	0	0	0
	5	0	5
	9	9	0
	20	15	5
History	78	55	23

Games since
	Main 2	Standard 0		Rapid 2		Blitz 0
Gender	Male
Age group	U20
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	2	1	50	0	1329.5	1329.5
Standard	0	0	0	0	0	0
Rapid	2	1	50	0	1329.5	1329.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	73	31.5	43.15	-58.2	1188	1129.8
Standard	55	23	41.82	-69.5	1186.5	1117
Rapid	18	8.5	47.22	-23.6	1192.6	1169
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1187.9	1158.4	1202.9	1200
2025-09-30	1187.9	1158.4	1202.9	1200
2025-09-01	1181.3	1158.4	1193.2	1200
2025-08-01	1181.3	1158.4	1193.2	1200
2025-07-01	1181.3	1158.4	1193.2	1200
2025-06-01	1181.3	1158.4	1193.2	1200
2025-05-01	1181.3	1158.4	1193.2	1200
2025-04-01	1181.3	1158.4	1193.2	1200
2025-03-01	1181.3	1158.4	1193.2	1200
2025-02-01	1181.3	1158.4	1193.2	1200
2025-01-01	1181.3	1158.4	1193.2	1200
2024-12-01	1181.3	1158.4	1193.2	1200
2024-11-01	1181.3	1158.4	1193.2	1200
2024-10-01	1181.3	1158.4	1193.2	1200
2024-09-01	1181.3	1158.4	1193.2	1200
2024-08-01	1181.3	1158.4	1193.2	1200
2024-07-01	1181.3	1158.4	1193.2	1200
2024-09-01	1181.3	1158.4	1193.2	1200
2024-05-01	1181.3	1158.4	1193.2	1200
2024-04-01	1181.3	1158.4	1193.2	1200
2024-03-01	1181.3	1158.4	1193.2	1200
2024-02-01	1181.3	1158.4	1193.2	1200
2024-01-01	1181.3	1158.4	1193.2	1200
2023-12-01	1181.3	1158.4	1193.2	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	Overberg Club Championship 2025	2025-09-13	2025-09-13	Rapid	Overberg (WOS)	7	2	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Club Championship 2025	2025-09-13	2025-09-13	Rapid	Overberg (WOS)	7	2	1	Yes	Analysis
2	Overberg High Schools Trails 2023 (U17)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	2.5	Yes	Analysis
3	Western Cape Top Schools 2022 (U18 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
4	Overberg Topskole 2022 (O18)	2022-08-30	2022-08-30	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
5	Overberg Schools Trials 2021 (U15+U18 Boys)	2021-09-18	2021-09-18	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
6	OCF Club Champs 2021 (Seniors)	2021-06-05	2021-08-14	Standard	Overberg (WOS)	10	10	4	Yes	Analysis
7	Kleinmond Open 2021 (U16)	2021-04-17	2021-04-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
8	OCF Roadshow 2020 (Seniors)	2020-11-21	2020-11-21	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
9	Overberg Closed 2020 (U15 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
10	OCF Chess Tournament 2 2020 (Open)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
11	Bontebok 2019 (U14)	2019-09-17	2019-09-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
12	Overberg Top Schools 2019 (U13)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
13	Overberg School Chess Close Champs 2019 (U13 Boys)	2019-03-08	2019-03-09	Standard	Overberg (WOS)	6	6	2	Yes	Analysis
14	VRT Pitt Open 2018 (U14)	2018-06-02	2018-06-02	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Western Cape Top Schools 2022				Tournament Overberg High Schools Trails 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-02-24	rnd 2	type Rapid	result 1
		Opponent Wence, S (Shandro)				Opponent Manho, A (Alvarno)
2	3	Tournament Overberg Schools Trials 2021				Tournament Overberg Schools Trials 2021
		date 2021-09-18	rnd 3	type Rapid	result 1	date 2021-09-18	rnd 5	type Rapid	result 1
		Opponent Mitchell, S (Shane)				Opponent Nceka, T (Troy)
3	3	Tournament Kleinmond Open 2021				Tournament Kleinmond Open 2021
		date 2021-04-17	rnd 2	type Standard	result 1	date 2021-04-17	rnd 4	type Standard	result 1
		Opponent Massyn, M (Mikalya)				Opponent Botha, S (Simeon)

#	Games	Start				End
1	3	Tournament Kleinmond Open 2021				Tournament Kleinmond Open 2021
		date 2021-04-17	rnd 2	type Standard	result 1	date 2021-04-17	rnd 4	type Standard	result 1
		Opponent Massyn, M (Mikalya)				Opponent Botha, S (Simeon)
2	3	Tournament OCF Chess Tournament 2 2020				Tournament OCF Chess Tournament 2 2020
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-01	rnd 4	type Standard	result 1
		Opponent Swart, M (Madelle)				Opponent Thompson, D (Duwayne)
3	3	Tournament Bontebok 2019				Tournament Bontebok 2019
		date 2019-09-17	rnd 3	type Standard	result 1	date 2019-09-17	rnd 5	type Standard	result 1
		Opponent Marais, M (Maruaan)				Opponent Mushongera, T (Tadiwanashe)

#	Games	Start				End
1	5	Tournament Overberg Schools Trials 2021				Tournament Overberg High Schools Trails 2023
		date 2021-09-18	rnd 3	type Rapid	result 1	date 2023-02-24	rnd 2	type Rapid	result 1
		Opponent Mitchell, S (Shane)				Opponent Manho, A (Alvarno)
2	1	Tournament Overberg Club Championship 2025				Tournament Overberg Club Championship 2025
		date 2025-09-13	rnd 1	type Rapid	result 1	date 2025-09-13	rnd 1	type Rapid	result 1
		Opponent Geyser, AP (Alwyn Petrus)				Opponent Geyser, AP (Alwyn Petrus)
3	1	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 4	type Rapid	result 0.5	date 2023-02-24	rnd 4	type Rapid	result 0.5
		Opponent Karelse, J (Jaywin)				Opponent Karelse, J (Jaywin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Western Cape Top Schools 2022				Tournament Overberg High Schools Trails 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-02-24	rnd 2	type Rapid	result 1
		Opponent Wence, S (Shandro)				Opponent Manho, A (Alvarno)
2	3	Tournament Overberg Schools Trials 2021				Tournament Overberg Schools Trials 2021
		date 2021-09-18	rnd 3	type Rapid	result 1	date 2021-09-18	rnd 5	type Rapid	result 1
		Opponent Mitchell, S (Shane)				Opponent Nceka, T (Troy)
3	3	Tournament Kleinmond Open 2021				Tournament Kleinmond Open 2021
		date 2021-04-17	rnd 2	type Standard	result 1	date 2021-04-17	rnd 4	type Standard	result 1
		Opponent Massyn, M (Mikalya)				Opponent Botha, S (Simeon)

#	Games	Start				End
1	3	Tournament Kleinmond Open 2021				Tournament Kleinmond Open 2021
		date 2021-04-17	rnd 2	type Standard	result 1	date 2021-04-17	rnd 4	type Standard	result 1
		Opponent Massyn, M (Mikalya)				Opponent Botha, S (Simeon)
2	3	Tournament OCF Chess Tournament 2 2020				Tournament OCF Chess Tournament 2 2020
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-01	rnd 4	type Standard	result 1
		Opponent Swart, M (Madelle)				Opponent Thompson, D (Duwayne)
3	3	Tournament Bontebok 2019				Tournament Bontebok 2019
		date 2019-09-17	rnd 3	type Standard	result 1	date 2019-09-17	rnd 5	type Standard	result 1
		Opponent Marais, M (Maruaan)				Opponent Mushongera, T (Tadiwanashe)

#	Games	Start				End
1	5	Tournament Overberg Schools Trials 2021				Tournament Overberg High Schools Trails 2023
		date 2021-09-18	rnd 3	type Rapid	result 1	date 2023-02-24	rnd 2	type Rapid	result 1
		Opponent Mitchell, S (Shane)				Opponent Manho, A (Alvarno)
2	1	Tournament Overberg Club Championship 2025				Tournament Overberg Club Championship 2025
		date 2025-09-13	rnd 1	type Rapid	result 1	date 2025-09-13	rnd 1	type Rapid	result 1
		Opponent Geyser, AP (Alwyn Petrus)				Opponent Geyser, AP (Alwyn Petrus)
3	1	Tournament VRT Pitt Open 2018				Tournament VRT Pitt Open 2018
		date 2018-06-02	rnd 4	type Rapid	result 1	date 2018-06-02	rnd 4	type Rapid	result 1
		Opponent Slingers, N (Nyoka)				Opponent Slingers, N (Nyoka)

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	Crookes ,J (Jonas)	4	0	-425	4	0	-425	0	0	0	0	0	0
1	Crookes ,J (Jonas)	4	1354.2	929.2	4	1345.9	929.2	0	0	0	0	0	0
2	Pekeur ,W (Warren)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Pekeur ,W (Warren)	3	1235.1	1093.5	3	1219.7	1093.5	0	0	0	0	0	0
3	Pekeur ,A (Amy)	3	2	141.7	2	1	0	1	1	425	0	0	0
3	Pekeur ,A (Amy)	3	1039.2	1180.8	2	1038.4	1039.2	1	1200	1464.2	0	0	0
4	Higham ,E (Ethan)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Higham ,E (Ethan)	2	1473.4	1048.4	2	1461.7	1048.4	0	0	0	0	0	0
5	Waldeck ,S (Stanvil)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Waldeck ,S (Stanvil)	2	1236.7	811.7	2	1238.7	811.7	0	0	0	0	0	0
6	Witbooi ,J (Juan)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Witbooi ,J (Juan)	2	1188.8	763.8	2	1174.8	763.8	0	0	0	0	0	0
7	Opperman ,E (Eldon)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Opperman ,E (Eldon)	2	885.2	460.2	2	903	460.2	0	0	0	0	0	0
8	Fradie ,F (Faith)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Fradie ,F (Faith)	2	1215.7	790.7	1	1276.2	790.7	1	1200	790.7	0	0	0
9	Jonas ,SG (Sue-Win Gurshlin)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Jonas ,SG (Sue-Win Gurshlin)	2	1329.6	904.6	1	1306.9	904.6	1	1189.6	904.6	0	0	0
10	Swartbooi ,M (Macniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Swartbooi ,M (Macniel)	1	1427.3	1002.3	1	1445.5	1002.3	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

Joubert, A (Antonio)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms