Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Zyl, J (Juanco)

Chess SA id

110086789

FIDE id

Date of birth

2010-02-04 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1463.2

Item	Main	Standard	Rapid	Blitz
Rating	1225	1257.6	1092.8	1200
Raw rating	1225	1257.6	1092.8	1200
Weighted rating	1187.3	1215.9	1092.8	1200
Weighted performance	1012.7	1013.7	0	0
Floor	768.9	815.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160	152.8	193.2	165.8
Highest rating	1296.4 2019-05-01	1329.5 2019-05-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1268.9 2020-01-01	1315.2 2020-01-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1268.9 2024-11-01	1315.2 2020-07-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1296.4 2019-05-01	1329.5 2019-05-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1225	1257.6	1092.8	1200
Analysis
Rating	1225	1257.6	1092.8	1200
Raw rating	1225	1257.6	1092.8	1200
Weighted rating	1187.3	1215.9	1092.8
Weighted performance	1012.7	1013.7	0
K-factor	36	36	36	36
Floor	768.9	815.2	700	700
Max/Min rating change allowed	160	152.8	193.2	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	1225	1257.6	1092.8	1200
New weighted rating	1191.8	1220.8	1092.8	1200
New weighted performance	1005.2	1006.2	0	0
Temp new rating	1225	1257.6	1092.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1225	1257.6	1092.8	1200
New K-factor	36	36	36	36
New floor	768.9	815.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	5	5	0
	0	0	0
	0	0	0
	0	0	0
History	91	81	10

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	10	6.5	65	127.5	1284.5	1412
Standard	10	6.5	65	127.5	1284.5	1412
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	82	41	50	0	1135.2	1135.2
Standard	72	36	50	0	1146.3	1146.3
Rapid	10	5	50	0	1055.2	1055.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1225	1257.6	1092.8	1200
2025-09-30	1225	1257.6	1092.8	1200
2025-09-01	1225	1257.6	1092.8	1200
2025-08-01	1225	1257.6	1092.8	1200
2025-07-01	1225	1257.6	1092.8	1200
2025-06-01	1225	1257.6	1092.8	1200
2025-05-01	1225	1257.6	1092.8	1200
2025-04-01	1225	1257.6	1092.8	1200
2025-03-01	1177.8	1205	1092.8	1200
2025-02-01	1138.2	1163	1092.8	1200
2025-01-01	1136.4	1159	1092.8	1200
2024-12-01	1136.4	1159	1092.8	1200
2024-11-01	1136.4	1159	1092.8	1200
2024-10-01	1136.4	1159	1092.8	1200
2024-09-01	1136.4	1159	1092.8	1200
2024-08-01	1136.4	1159	1092.8	1200
2024-07-01	1136.4	1159	1092.8	1200
2024-09-01	1136.4	1159	1092.8	1200
2024-05-01	1136.4	1159	1092.8	1200
2024-04-01	1136.4	1159	1092.8	1200
2024-03-01	1136.4	1159	1092.8	1200
2024-02-01	1143.3	1174.5	1092.8	1200
2024-01-01	1143.3	1174.5	1092.8	1200
2023-12-01	1143.3	1174.5	1092.8	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	AHS Open Chess Tournament 2025 (D)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
2	Grey College Team Championship 2025 (B)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	AHS Open Chess Tournament 2025 (D)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
2	Grey College Team Championship 2025 (B)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	2024 Tshwane Chess AHS Open Chess Tournament (C1)	2024-02-24	2024-02-24	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
4	2019 Wild Card Chess Championship (U10 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
5	2019 South African Junior Team Championships (U10A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	0	Yes	Analysis
6	2019 Super 12 Laerskole (Juniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
7	Capricorn Qualifying May 2019 (O10)	2019-05-18	2019-05-18	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
8	Capricorn Qualifying April 2019 (O10)	2019-04-13	2019-04-13	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
9	Capricorn Qualifying 2019 (O10)	2019-02-16	2019-02-16	Standard	Capricorn (LCP)	5	5	5	Yes	Analysis
10	South African Junior Team Championships 2018 (U10B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
11	2018 Swartkop Open (D)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
12	2018 Super 12 (Junior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	3	Yes	Analysis
13	Capricorn Qualifying 10 Maart 2018 (U10)	2018-03-10	2018-03-10	Standard	Capricorn (LCP)	5	5	3.5	Yes	Analysis
14	Capricorn Qualifying 10 Feb 2018 (U10)	2018-02-10	2018-02-10	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
15	South African Junior Wildcard Championships 2017 (U8 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	6	2	Yes	Analysis

#	Games	Start				End
1	9	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying April 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-04-13	rnd 4	type Standard	result 1
		Opponent Makgoba, K (Kagiso)				Opponent Sebetola, TJ (Tumelo)
2	4	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Bester, D (Daniel)				Opponent Rocher, G (Gideon)
3	4	Tournament Capricorn Qualifying 10 Feb 2018				Tournament Capricorn Qualifying 10 Maart 2018
		date 2018-02-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 2	type Standard	result 1
		Opponent Joubert, D (Dewald)				Opponent Louw, I (Ignis)

#	Games	Start				End
1	9	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying April 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-04-13	rnd 4	type Standard	result 1
		Opponent Makgoba, K (Kagiso)				Opponent Sebetola, TJ (Tumelo)
2	4	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 4	type Standard	result 1
		Opponent Bester, D (Daniel)				Opponent Rocher, G (Gideon)
3	4	Tournament Capricorn Qualifying 10 Feb 2018				Tournament Capricorn Qualifying 10 Maart 2018
		date 2018-02-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 2	type Standard	result 1
		Opponent Joubert, D (Dewald)				Opponent Louw, I (Ignis)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-05-05	rnd 5	type Rapid	result 1
		Opponent Olivier, L (Lienke)				Opponent Thompson, S (Skyla)
2	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 5	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Sutherland, R (Reuben)				Opponent Sutherland, R (Reuben)
3	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 3	type Rapid	result 1	date 2019-05-04	rnd 3	type Rapid	result 1
		Opponent Wilken, Z (Zander)				Opponent Wilken, Z (Zander)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying April 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-04-13	rnd 4	type Standard	result 1
		Opponent Makgoba, K (Kagiso)				Opponent Sebetola, TJ (Tumelo)
2	4	Tournament Capricorn Qualifying 10 Feb 2018				Tournament Capricorn Qualifying 10 Maart 2018
		date 2018-02-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 2	type Standard	result 1
		Opponent Joubert, D (Dewald)				Opponent Louw, I (Ignis)
3	3	Tournament 2019 Wild Card Chess Championship				Tournament 2019 Wild Card Chess Championship
		date 2020-01-11	rnd 5	type Standard	result 1	date 2020-01-12	rnd 7	type Standard	result 1
		Opponent Griesel, J (Johanco)				Opponent Vendidandi, CK (Chaitanya Kartik)

#	Games	Start				End
1	9	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying April 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-04-13	rnd 4	type Standard	result 1
		Opponent Makgoba, K (Kagiso)				Opponent Sebetola, TJ (Tumelo)
2	4	Tournament Capricorn Qualifying 10 Feb 2018				Tournament Capricorn Qualifying 10 Maart 2018
		date 2018-02-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 2	type Standard	result 1
		Opponent Joubert, D (Dewald)				Opponent Louw, I (Ignis)
3	3	Tournament 2019 Wild Card Chess Championship				Tournament 2019 Wild Card Chess Championship
		date 2020-01-11	rnd 5	type Standard	result 1	date 2020-01-12	rnd 7	type Standard	result 1
		Opponent Griesel, J (Johanco)				Opponent Vendidandi, CK (Chaitanya Kartik)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-05-05	rnd 5	type Rapid	result 1
		Opponent Olivier, L (Lienke)				Opponent Thompson, S (Skyla)
2	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 5	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Sutherland, R (Reuben)				Opponent Sutherland, R (Reuben)
3	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 3	type Rapid	result 1	date 2019-05-04	rnd 3	type Rapid	result 1
		Opponent Wilken, Z (Zander)				Opponent Wilken, Z (Zander)

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	Sebetola ,TJ (Tumelo)	3	3	425	3	3	425	0	0	0	0	0	0
1	Sebetola ,TJ (Tumelo)	3	1230.4	1655.4	3	1232.6	1655.4	0	0	0	0	0	0
2	Mogashoa ,MR (Mahlonamela)	2	1	0	2	1	0	0	0	0	0	0	0
2	Mogashoa ,MR (Mahlonamela)	2	1158.2	1158.2	2	1163.4	1158.2	0	0	0	0	0	0
3	Els ,R (Regardt)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Els ,R (Regardt)	2	823.2	398.2	2	834	398.2	0	0	0	0	0	0
4	Lourens ,J (Jurgen)	2	0	-425	1	0	-425	1	0	-425	0	0	0
4	Lourens ,J (Jurgen)	2	1180.9	755.9	1	1066.4	755.9	1	1240	755.9	0	0	0
5	Mukwambo ,CJ (Cj)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mukwambo ,CJ (Cj)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Maharaj ,A (Aditi)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Maharaj ,A (Aditi)	1	1365.2	940.2	1	1373.1	940.2	0	0	0	0	0	0
7	Strydom ,RW (Ruben Wynand)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Strydom ,RW (Ruben Wynand)	1	1127.4	702.4	1	1113.7	702.4	0	0	0	0	0	0
8	Mgbo ,E (Emmanuel)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mgbo ,E (Emmanuel)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Rothman ,W (Waldo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Rothman ,W (Waldo)	1	1214.9	1639.9	1	1217.6	1639.9	0	0	0	0	0	0
10	Botes ,E (Evan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Botes ,E (Evan)	1	561.2	986.2	1	561.2	986.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Zyl, J (Juanco)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms