Chess South Africa Ratings Database

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Personal

Van Schalkwyk, J (Jurgens)

Chess SA id

1100111277

FIDE id

Date of birth

2010-11-16 (U16)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-13

Personal details last changed

1900-01-01

Junior GPX Games

41.2

Junior GPX Points

1311

Item	Main	Standard	Rapid	Blitz
Rating	1404.6	1395	1298.7	1200
Raw rating	1404.6	1395	1298.7	1200
Weighted rating	1327.4	1316.4	1266.2	1200
Weighted performance	1403.2	1385.9	1111.5	0
Floor	904.6	895	817.2	700
K-factor	32	36	36	36
Min/Max rating change allowed	123.9	125.6	144.1	165.8
Highest rating	1404.6 2025-09-30	1395 2025-09-30	1621.5 2022-10-01	1200 2018-10-01
Highest raw rating	1404.6 2025-09-30	1395 2025-09-30	1317.2 2022-11-01	1200 2024-02-01
Highest weighted rating	1327.4 2025-09-30	1316.4 2025-09-30	1317.2 2024-05-01	1200 2018-10-01
Highest weighted performance	1403.2 2025-09-30	1385.9 2025-09-30	1621.5 2022-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1404.6	1395	1298.7	1200
Analysis
Rating	1404.6	1395	1298.7	1200
Raw rating	1404.6	1395	1298.7	1200
Weighted rating	1327.4	1316.4	1266.2
Weighted performance	1403.2	1385.9	1111.5
K-factor	32	36	36	36
Floor	904.6	895	817.2	700
Max/Min rating change allowed	123.9	125.6	144.1	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	1404.6	1395	1298.7	1200
New weighted rating	1335.1	1324.9	1268.8	1200
New weighted performance	1402.7	1385.4	1111.1	0
Temp new rating	1404.6	1395	1298.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1404.6	1395	1298.7	1200
New K-factor	32	36	36	36
New floor	904.6	895	817.2	700

Item	Main	Standard	Rapid
	0	0	0
	35	25	10
	34	29	5
	25	20	5
	15	9	6
	5	5	0
History	170	144	26

Games since
	Main 69	Standard 54		Rapid 15		Blitz 0
Gender	Male
Age group	U16
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	2115		144		118
Male	1744		122		99
U16	317		17		16
U16 Male	246		16		15
Standard
	RSA		Province		Region
Overall	2109		155		122
Male	1726		133		104
U16	321		18		16
U16 Male	251		17		15
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	35	22	62.86	109.3	1318.9	1428.2
Standard	25	16	64	119	1316.6	1435.6
Rapid	10	6	60	85	1324.5	1409.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	170	87	51.18	10	1232	1242
Standard	144	70	48.61	-11.8	1221.9	1210.1
Rapid	26	17	65.38	130.8	1288.1	1418.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1404.6	1395	1298.7	1200
2025-09-01	1381.9	1373	1298.7	1200
2025-08-01	1360.7	1373	1260.9	1200
2025-07-01	1360.7	1373	1260.9	1200
2025-06-01	1360.7	1373	1259.3	1200
2025-05-01	1340.5	1337.3	1263.7	1200
2025-04-01	1340.5	1337.3	1263.7	1200
2025-03-01	1299.4	1281.7	1263.7	1200
2025-02-01	1283	1255.8	1263.5	1200
2025-01-01	1278.8	1255.8	1248.8	1200
2024-12-01	1278.8	1255.8	1248.8	1200
2024-11-01	1278.8	1255.8	1248.8	1200
2024-10-01	1309.3	1288.2	1248.8	1200
2024-09-01	1309.3	1288.2	1248.8	1200
2024-08-01	1309.3	1288.2	1248.8	1200
2024-07-01	1296.9	1288.2	1273.3	1200
2024-06-01	1296.9	1288.2	1273.3	1200
2024-08-01	1296.9	1288.2	1273.3	1200
2024-04-01	1303.5	1281.1	1273.3	1200
2024-03-01	1261.1	1208.7	1273.3	1200
2024-02-01	1261.1	1208.7	1273.3	1200
2024-01-01	1261.1	1208.7	1273.3	1200
2023-12-01	1261.1	1208.7	1273.3	1200
2023-11-01	1261.1	1208.7	1273.3	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	Bojanala's Rusties - The Champions' Tournament 2025 (Bishops)	2025-09-13	2025-09-13	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
2	Bojanala's Clash Of Schools 2025 (High School B)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
3	Bojanala's Circuit Championships 2 of 4 2025 (U16)	2025-05-17	2025-05-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
4	Robday Bergsig Sport Festival 2025 (Juniors)	2025-05-03	2025-05-03	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
5	Bojanala's Waterkloof - The Superior One 2025 (Knights)	2025-03-15	2025-03-15	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
6	Bojanala Circuit Championships 1 of 4 2025 (U16)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
7	Bojanala's Battle In The Kloof 2025 (Knights)	2025-02-15	2025-02-15	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Rusties - The Champions' Tournament 2025 (Bishops)	2025-09-13	2025-09-13	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
2	Bojanala's Clash Of Schools 2025 (High School B)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
3	Bojanala's Circuit Championships 2 of 4 2025 (U16)	2025-05-17	2025-05-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
4	Robday Bergsig Sport Festival 2025 (Juniors)	2025-05-03	2025-05-03	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
5	Bojanala's Waterkloof - The Superior One 2025 (Knights)	2025-03-15	2025-03-15	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
6	Bojanala Circuit Championships 1 of 4 2025 (U16)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
7	Bojanala's Battle In The Kloof 2025 (Knights)	2025-02-15	2025-02-15	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
8	Bojanala's e4 In The Chapel 2024 (Rooks)	2024-10-26	2024-10-26	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
9	Bojanala's Battle of Mount Cambridge 2024 (Bishops)	2024-10-05	2024-10-05	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
10	Bojanala's Clash Of Schools - Secondary 2024 (High School Seniors)	2024-07-27	2024-07-27	Rapid	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
11	Bojanala Olienpark's One For The Ages 2024 (Rooks)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	4	2	Yes	Analysis
12	Bojanala's Rating Express 2024 (Rooks)	2024-04-06	2024-04-06	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
13	Bojanala Silwerrand's Rating Implosion 2024 (Rooks)	2024-03-16	2024-03-16	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
14	Schoemies' Kings & Queens 2024 (Rooks)	2024-03-02	2024-03-02	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
15	Bojanala School League 2023 (Primary School Open)	2023-08-19	2023-08-19	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
16	Olienpark - 2nd One for the Ages 2023 (U14)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
17	Grenswag's Community Battle 2023 (Rooks)	2023-04-22	2023-04-22	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
18	Nories Make It Happen 2023 (Rooks)	2023-03-04	2023-03-04	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
19	Harties Wolf Pack 2023 (Rooks)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
20	Super 8 Skaak 2022 (Seniors)	2022-10-14	2022-10-14	Rapid	Bojanala Platina (NBR)	7	6	6	Yes	Analysis
21	Bojanala Chess Federation Clash of Schools 2022 (PS Championship)	2022-07-22	2022-07-22	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
22	RHS Know Thyself 2022 (B)	2022-04-23	2022-04-23	Standard	Bojanala Platina (NBR)	5	4	0	Yes	Analysis
23	Back to the Board 2021 (U12)	2021-04-17	2021-04-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
24	Hoerskool Brits Toernooi 2020 (U12)	2020-03-14	2020-03-14	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
25	Laerskool Proteapark 2020 (D)	2020-02-29	2020-02-29	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
26	2019 South African Junior Team Championships (U10D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
27	NW Open 2019 (U10)	2019-10-12	2019-10-12	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
28	Inter Region 2019 (U10 Open)	2019-10-19	2019-10-19	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
29	Laerskool Brits 2019 (U10)	2019-08-31	2019-08-31	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
30	Laerskool Rustenburg 2019 (U10)	2019-08-17	2019-08-17	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
31	Grenville 2019 (U10)	2019-06-08	2019-06-08	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
32	Laerskool Proteapark 2019 (D)	2019-05-18	2019-05-18	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
33	Hoerskool Rustenburg Skaak 2019 (U10)	2019-04-13	2019-04-13	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
34	Hoerskool Brits Tournament 2019 (U10)	2019-02-09	2019-02-09	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis

#	Games	Start				End
1	9	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Super 8 Skaak 2022
		date 2022-07-22	rnd 3	type Standard	result 1	date 2022-10-14	rnd 6	type Rapid	result 1
		Opponent Kahasha, J (Jason)				Opponent Kelly-Gliddon, L (Logan)
2	6	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Rusties - The Champions' Tournament 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-09-13	rnd 2	type Standard	result 0.5
		Opponent Madingoane, T (Tshiamo)				Opponent Mokgatle, K (Keobakile)
3	4	Tournament Bojanala's Waterkloof - The Superior One 2025				Tournament Robday Bergsig Sport Festival 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-05-03	rnd 1	type Rapid	result 1
		Opponent Malisha, U (Uaffa)				Opponent Jele, S (Sicelo)

#	Games	Start				End
1	4	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Schoemies' Kings & Queens 2024
		date 2023-05-13	rnd 3	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Zoellner, R (Robert)				Opponent Nkabinde, N (Nkazimulo)
2	3	Tournament Bojanala's Circuit Championships 2 of 4 2025				Tournament Bojanala's Rusties - The Champions' Tournament 2025
		date 2025-05-17	rnd 5	type Standard	result 1	date 2025-09-13	rnd 2	type Standard	result 0.5
		Opponent Jogi, A (Arjun-Krishna)				Opponent Mokgatle, K (Keobakile)
3	3	Tournament Bojanala's Waterkloof - The Superior One 2025				Tournament Bojanala's Waterkloof - The Superior One 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Malisha, U (Uaffa)				Opponent Botha, L (Lukas)

#	Games	Start				End
1	6	Tournament Super 8 Skaak 2022				Tournament Super 8 Skaak 2022
		date 2022-10-14	rnd 1	type Rapid	result 1	date 2022-10-14	rnd 6	type Rapid	result 1
		Opponent Meyring, D (Donovan)				Opponent Kelly-Gliddon, L (Logan)
2	4	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Madingoane, T (Tshiamo)				Opponent Mosele, K (Katlego)
3	3	Tournament Bojanala's Clash Of Schools - Secondary 2024				Tournament Robday Bergsig Sport Festival 2025
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2025-05-03	rnd 1	type Rapid	result 1
		Opponent Molefinyane, O (Omatla)				Opponent Jele, S (Sicelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Super 8 Skaak 2022
		date 2022-07-22	rnd 3	type Standard	result 1	date 2022-10-14	rnd 6	type Rapid	result 1
		Opponent Kahasha, J (Jason)				Opponent Kelly-Gliddon, L (Logan)
2	5	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Rusties - The Champions' Tournament 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-09-13	rnd 1	type Standard	result 1
		Opponent Madingoane, T (Tshiamo)				Opponent Neswiswa, K (Khano)
3	4	Tournament Bojanala's Waterkloof - The Superior One 2025				Tournament Robday Bergsig Sport Festival 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-05-03	rnd 1	type Rapid	result 1
		Opponent Malisha, U (Uaffa)				Opponent Jele, S (Sicelo)

#	Games	Start				End
1	3	Tournament Bojanala's Waterkloof - The Superior One 2025				Tournament Bojanala's Waterkloof - The Superior One 2025
		date 2025-03-15	rnd 3	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Malisha, U (Uaffa)				Opponent Botha, L (Lukas)
2	3	Tournament Schoemies' Kings & Queens 2024				Tournament Bojanala Silwerrand's Rating Implosion 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-03-16	rnd 1	type Standard	result 1
		Opponent Changara, A (Alvern Takura)				Opponent Tshidi, T (Tshegofatso)
3	3	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Clash of Schools 2022
		date 2022-07-22	rnd 3	type Standard	result 1	date 2022-07-22	rnd 5	type Standard	result 1
		Opponent Kahasha, J (Jason)				Opponent Mahuma, T (Tumisang)

#	Games	Start				End
1	6	Tournament Super 8 Skaak 2022				Tournament Super 8 Skaak 2022
		date 2022-10-14	rnd 1	type Rapid	result 1	date 2022-10-14	rnd 6	type Rapid	result 1
		Opponent Meyring, D (Donovan)				Opponent Kelly-Gliddon, L (Logan)
2	4	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Madingoane, T (Tshiamo)				Opponent Mosele, K (Katlego)
3	3	Tournament Bojanala's Clash Of Schools - Secondary 2024				Tournament Robday Bergsig Sport Festival 2025
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2025-05-03	rnd 1	type Rapid	result 1
		Opponent Molefinyane, O (Omatla)				Opponent Jele, S (Sicelo)

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	Morkel ,DJ (Douglas Jonathan)	6	1	-283.3	5	1	-255	1	0	-425	0	0	0
1	Morkel ,DJ (Douglas Jonathan)	6	1263	979.7	5	1264.3	1008	1	1124.4	838	0	0	0
2	Bantseke ,B (Boikanyo)	5	2	-85	5	2	-85	0	0	0	0	0	0
2	Bantseke ,B (Boikanyo)	5	1230.2	1145.2	5	1225.9	1145.2	0	0	0	0	0	0
3	Nkabinde ,L (Lwazi)	5	1	-255	5	1	-255	0	0	0	0	0	0
3	Nkabinde ,L (Lwazi)	5	1472.6	1217.6	5	1467.8	1217.6	0	0	0	0	0	0
4	Jansen Van Vuuren ,L (Lourein)	4	2	0	4	2	0	0	0	0	0	0	0
4	Jansen Van Vuuren ,L (Lourein)	4	1020.3	1020.3	4	972.7	1020.3	0	0	0	0	0	0
5	Tshetlhe ,B (Blessing)	4	2	0	3	2	141.7	1	0	-425	0	0	0
5	Tshetlhe ,B (Blessing)	4	1365.7	1365.7	3	1295.3	1507.3	1	1271.3	940.7	0	0	0
6	Van Der Berg ,KW (Kai Willem)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
6	Van Der Berg ,KW (Kai Willem)	3	1441.5	1299.8	3	1431.6	1299.8	0	0	0	0	0	0
7	Roos ,J (Justin)	3	0	-425	2	0	-425	1	0	-425	0	0	0
7	Roos ,J (Justin)	3	1485.2	1060.2	2	1447.3	1060.2	1	1174.5	1060.2	0	0	0
8	Molefinyane ,O (Omatla)	3	1	-141.7	2	0	-425	1	1	425	0	0	0
8	Molefinyane ,O (Omatla)	3	1141.7	1000	2	1065.2	716.7	1	578.8	1566.7	0	0	0
9	Monare ,O (Oratilwe)	2	1	0	2	1	0	0	0	0	0	0	0
9	Monare ,O (Oratilwe)	2	1392.8	1392.8	2	1323	1392.8	0	0	0	0	0	0
10	Gouws ,J (Justin)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Gouws ,J (Justin)	2	1086.2	661.2	2	1053.9	661.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Schalkwyk, J (Jurgens)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms