Chess South Africa Ratings Database

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Personal

Claassen, J (Jean-Daniel)

Chess SA id

103004868

FIDE id

Date of birth

2003-09-22 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-09-28

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1818.5	1836.4	1404.2	1557.8
Raw rating	1818.5	1836.4	1404.2	1557.8
Weighted rating	1808.1	1824	1404.2	1557.6
Weighted performance	1405.5	1408.9	0	0
Floor	1318.5	1336.4	904.2	1057.8
K-factor	24	24	32	32
Min/Max rating change allowed	68.7	67	124	99.6
Highest rating	1818.5 2024-10-01	1836.4 2024-10-01	1404.2 2019-11-01	1827.5 2020-01-01
Highest raw rating	1818.5 2024-10-01	1836.4 2024-10-01	1404.2 2024-02-01	1557.8 2024-02-01
Highest weighted rating	1800.9 2025-08-01	1815.5 2025-08-01	1404.2 2019-11-01	1556.3 2025-08-01
Highest weighted performance	1731.7 2023-04-01	1736.3 2023-04-01	1200 2024-02-01	1827.5 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1818.5	1836.4	1404.2	1557.8
Analysis
Rating	1818.5	1836.4	1404.2	1557.8
Raw rating	1818.5	1836.4	1404.2	1557.8
Weighted rating	1808.1	1824	1404.2
Weighted performance	1405.5	1408.9	0
K-factor	24	24	32	32
Floor	1318.5	1336.4	904.2	1057.8
Max/Min rating change allowed	68.7	67	124	99.6
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	1818.5	1836.4	1404.2	1557.8
New weighted rating	1810.1	1826.3	1404.2	1557.8
New weighted performance	1394.3	1397.7	0	0
Temp new rating	1818.5	1836.4	1404.2	1557.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1818.5	1836.4	1404.2	1557.8
New K-factor	24	24	32	32
New floor	1318.5	1336.4	904.2	1057.8

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	5	5	0
	10	10	0
	20	20	0
	14	14	0
History	837	830	7

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	260	147	56.54	55.6	1546.6	1602.2
Standard	253	143.5	56.72	57.1	1538.5	1595.6
Rapid	0	0	0	0	0	0
Blitz	7	3.5	50	0	1841	1841

Date	Main	Standard	Rapid	Blitz
2025-11-01	1818.5	1836.4	1404.2	1557.8
2025-09-30	1818.5	1836.4	1404.2	1557.8
2025-09-01	1818.5	1836.4	1404.2	1557.8
2025-08-01	1818.5	1836.4	1404.2	1557.8
2025-07-01	1818.5	1836.4	1404.2	1557.8
2025-06-01	1818.5	1836.4	1404.2	1557.8
2025-05-01	1818.5	1836.4	1404.2	1557.8
2025-04-01	1818.5	1836.4	1404.2	1557.8
2025-03-01	1818.5	1836.4	1404.2	1557.8
2025-02-01	1818.5	1836.4	1404.2	1557.8
2025-01-01	1818.5	1836.4	1404.2	1557.8
2024-12-01	1818.5	1836.4	1404.2	1557.8
2024-11-01	1818.5	1836.4	1404.2	1557.8
2024-10-01	1818.5	1836.4	1404.2	1557.8
2024-09-01	1762.3	1768.9	1404.2	1557.8
2024-08-01	1762.3	1768.9	1404.2	1557.8
2024-07-01	1762.3	1768.9	1404.2	1557.8
2024-09-01	1762.3	1768.9	1404.2	1557.8
2024-05-01	1762.3	1768.9	1404.2	1557.8
2024-04-01	1762.3	1768.9	1404.2	1557.8
2024-03-01	1762.3	1768.9	1404.2	1557.8
2024-02-01	1762.3	1768.9	1404.2	1557.8
2024-01-01	1762.3	1768.9	1404.2	1557.8
2023-12-01	1746.5	1756	1404.2	1511.5

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2024 Tuks Open Chess Tournament (A)	2024-09-28	2024-09-28	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
2	2023 South African Junior Closed Chess Championships (U20 Boys)	2023-03-31	2023-04-02	Standard	Chess South Africa (CSA)	5	5	4	Yes	Analysis
3	Chris Greyling Open Tournament 2023 (A)	2023-03-21	2023-03-21	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
4	2022 Alekhine Open (A)	2022-08-13	2022-08-14	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	2022 Jacaranda Round Robin (A)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
6	2022 Menlo Open Tournament (A)	2022-07-23	2022-07-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
7	2022 Gauteng Interregion (U20 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
8	2021 CCC Inhouse (A)	2021-10-20	2021-11-17	Standard	Tshwane (GTP)	5	2	2	Yes	Analysis
9	2021 Etienne Lewis Closed Trials (U18+U20 Open)	2021-09-24	2021-09-26	Standard	Nelson Mandela Bay (ENM)	7	7	5	Yes	Analysis
10	2021 Lubowski Open Tournament (A)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
11	2020 Wynie Robbertse Open Chess Tournament (A)	2020-03-07	2020-03-07	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
12	2020 Waterkloof Open (A)	2020-02-29	2020-03-01	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	2019 Inter Region Chess Championships	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
14	2019 South African Juior Blitz Championship (A)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	7	3.5	Yes	Analysis
15	2019 South African Junior Team Championships (U18A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
16	WORLD YOUTH UNDER-16 CHESS OLYMPIAD 2019	2019-10-29	2019-11-05	Standard	Turkey (TUR)	9	7	1	Yes	Analysis
17	The Joburg Open 2019 (Prestige)	2019-10-12	2019-10-12	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
18	2019 Centurion Open (A)	2019-09-28	2019-09-28	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
19	2019 Gauteng School League Finals (U17 Open)	2019-08-24	2019-08-24	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
20	2019 Alekhine Open (A)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
21	2019 D4 Tshwane South Schools League Team Finals (U17)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
22	2019 Waterkloof Open (A)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
23	2019 South African Junior Closed Chess Championship (U16 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	5.5	Yes	Analysis
24	2019 TuksChess Open (A)	2019-02-23	2019-02-23	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
25	2019 Blou Bul (A)	2019-02-16	2019-02-16	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
26	2019 Piet Robbertse (A)	2019-02-01	2019-02-03	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
27	2019 Constantia Park Open (A)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
28	JNW Club - Bryanston Open 1 2019 (A)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
29	Boksburg Open 2019 (A)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
30	2018 Tshwane Inter Region (U18A)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
31	2018 Inter Region Chess Championships	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	1.5	Yes	Analysis
32	South African Junior Team Championships 2018 (U16A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
33	2018 Jakaranda (C)	2018-09-22	2018-09-22	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
34	2018 Etienne Lewis Trials (U16 Boys)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	6	Yes	Analysis
35	2018 Centurion Chess Club Open (A)	2018-09-29	2018-09-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
36	2018 Gauteng League Final (U17)	2018-08-25	2018-08-25	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
37	2018 Alekhine Open (A)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	2.5	Yes	Analysis
38	2018 Capablanca Swiss (A)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
39	2018 South African Junior Closed Chess Championships (U16 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	5.5	Yes	Analysis
40	2018 Waterkloof Open (A)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
41	2018 Crawford Open (B)	2018-03-24	2018-03-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
42	2018 Piet Robbertse Chess Tournament (Prestige)	2018-02-02	2018-02-04	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
43	2018 Constantia Park Open (B)	2018-02-10	2018-02-10	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
44	2018 Blou Bul Open (B)	2018-02-17	2018-02-17	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
45	South African Junior Wildcard Championships 2017 (U16 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
46	South African Junior Team Championships 2017 (U16A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis

#	Games	Start				End
1	12	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2022 Menlo Open Tournament
		date 2021-09-25	rnd 5	type Standard	result 1	date 2022-07-23	rnd 2	type Standard	result 1
		Opponent Du Toit, GJ (Gerhardus (Eghardt))				Opponent Fourie, B (Brandon)
2	11	Tournament 2018 Alekhine Open				Tournament 2018 Etienne Lewis Trials
		date 2018-08-11	rnd 6	type Standard	result 1	date 2018-09-01	rnd 5	type Standard	result 1
		Opponent Vather, S (Shayur)				Opponent Fihla, LL (Lonwabo)
3	10	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 Alekhine Open
		date 2019-03-19	rnd 6	type Standard	result 0.5	date 2019-08-09	rnd 1	type Standard	result 1
		Opponent Dhevcharran, K (Kahill)				Opponent Levitan, J (Judah)

#	Games	Start				End
1	12	Tournament 2021 Etienne Lewis Closed Trials				Tournament 2022 Menlo Open Tournament
		date 2021-09-25	rnd 5	type Standard	result 1	date 2022-07-23	rnd 2	type Standard	result 1
		Opponent Du Toit, GJ (Gerhardus (Eghardt))				Opponent Fourie, B (Brandon)
2	11	Tournament 2018 Alekhine Open				Tournament 2018 Etienne Lewis Trials
		date 2018-08-11	rnd 6	type Standard	result 1	date 2018-09-01	rnd 5	type Standard	result 1
		Opponent Vather, S (Shayur)				Opponent Fihla, LL (Lonwabo)
3	10	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 Alekhine Open
		date 2019-03-19	rnd 6	type Standard	result 0.5	date 2019-08-09	rnd 1	type Standard	result 1
		Opponent Dhevcharran, K (Kahill)				Opponent Levitan, J (Judah)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 4	type Blitz	result 1	date 2020-01-05	rnd 5	type Blitz	result 0.5
		Opponent Masiya, MA (Mfundo)				Opponent Mthunzi, C (Clive)
2	2	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 1	type Blitz	result 1	date 2020-01-05	rnd 2	type Blitz	result 1
		Opponent Nkuna, M (Mchuchisi)				Opponent Senekal, FP (Frederick)

#	Games	Start				End
1	8	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 Alekhine Open
		date 2019-03-21	rnd 8	type Standard	result 1	date 2019-08-09	rnd 1	type Standard	result 1
		Opponent Hlongwane, B (Blessing)				Opponent Levitan, J (Judah)
2	8	Tournament 2018 Gauteng League Final				Tournament 2018 Etienne Lewis Trials
		date 2018-08-25	rnd 3	type Standard	result 1	date 2018-09-01	rnd 5	type Standard	result 1
		Opponent Khumalo, N (Norman)				Opponent Fihla, LL (Lonwabo)
3	6	Tournament 2023 South African Junior Closed Chess Championships				Tournament 2024 Tuks Open Chess Tournament
		date 2023-04-01	rnd 4	type Standard	result 1	date 2024-09-28	rnd 4	type Standard	result 1
		Opponent Difotso, T (Tshegofatso)				Opponent Motsuane, L (Lucky)

#	Games	Start				End
1	8	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 Alekhine Open
		date 2019-03-21	rnd 8	type Standard	result 1	date 2019-08-09	rnd 1	type Standard	result 1
		Opponent Hlongwane, B (Blessing)				Opponent Levitan, J (Judah)
2	8	Tournament 2018 Gauteng League Final				Tournament 2018 Etienne Lewis Trials
		date 2018-08-25	rnd 3	type Standard	result 1	date 2018-09-01	rnd 5	type Standard	result 1
		Opponent Khumalo, N (Norman)				Opponent Fihla, LL (Lonwabo)
3	6	Tournament 2023 South African Junior Closed Chess Championships				Tournament 2024 Tuks Open Chess Tournament
		date 2023-04-01	rnd 4	type Standard	result 1	date 2024-09-28	rnd 4	type Standard	result 1
		Opponent Difotso, T (Tshegofatso)				Opponent Motsuane, L (Lucky)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 1	type Blitz	result 1	date 2020-01-05	rnd 2	type Blitz	result 1
		Opponent Nkuna, M (Mchuchisi)				Opponent Senekal, FP (Frederick)
2	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 4	type Blitz	result 1	date 2020-01-05	rnd 4	type Blitz	result 1
		Opponent Masiya, MA (Mfundo)				Opponent Masiya, MA (Mfundo)

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	Fourie ,B (Brandon)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
1	Fourie ,B (Brandon)	4	1684.7	1790.9	4	1685.8	1790.9	0	0	0	0	0	0
2	Claassen ,G (Gabriella)	4	4	425	4	4	425	0	0	0	0	0	0
2	Claassen ,G (Gabriella)	4	1396.7	1821.7	4	1396.4	1821.7	0	0	0	0	0	0
3	Nhamuave ,E (Eleazar)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
3	Nhamuave ,E (Eleazar)	4	1707.2	1919.7	4	1706.8	1919.7	0	0	0	0	0	0
4	Naidoo ,T (Tashil)	4	2	0	4	2	0	0	0	0	0	0	0
4	Naidoo ,T (Tashil)	4	1570	1570	4	1572.1	1570	0	0	0	0	0	0
5	Cruywagen ,A (Armand)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Cruywagen ,A (Armand)	3	1538	1396.4	3	1543.6	1396.4	0	0	0	0	0	0
6	Smit ,D (Devon)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
6	Smit ,D (Devon)	3	1767.7	2051.1	3	1764.6	2051.1	0	0	0	0	0	0
7	Nguyen ,MT (Minh Thien)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
7	Nguyen ,MT (Minh Thien)	3	1405	1688.4	3	1411.7	1688.4	0	0	0	0	0	0
8	Dinham ,J (James)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
8	Dinham ,J (James)	3	1493.9	1210.5	3	1491.3	1210.5	0	0	0	0	0	0
9	Potgieter ,E (Edward)	3	3	425	3	3	425	0	0	0	0	0	0
9	Potgieter ,E (Edward)	3	1537.9	1962.9	3	1538.3	1962.9	0	0	0	0	0	0
10	Marais ,N (Nina)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
10	Marais ,N (Nina)	3	1721.9	1580.3	3	1720	1580.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Claassen, J (Jean-Daniel)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms