Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Beer, JP (Jan Petrus)

Chess SA id

107079475

FIDE id

Date of birth

2007-04-13 (U20)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1276	1273	561.4	561.4
Raw rating	1276	1273	561.4	561.4
Weighted rating	1273.2	1269.1	561.4	561.4
Weighted performance	904.2	904.5	0	0
Floor	804.3	806.2	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	148.8	149.4	411.9	411.9
Highest rating	1315.4 2023-08-01	1313.2 2023-08-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1304.3 2024-08-01	1306.2 2024-08-01	561.4 2024-02-01	561.4 2024-02-01
Highest weighted rating	1304.3 2024-08-01	1306.2 2024-08-01	561.4 2024-11-01	561.4 2024-11-01
Highest weighted performance	1315.4 2023-08-01	1313.2 2023-08-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1276	1273	561.4	561.4
Analysis
Rating	1276	1273	561.4	561.4
Raw rating	1276	1273	561.4	561.4
Weighted rating	1273.2	1269.1	561.4
Weighted performance	904.2	904.5	0
K-factor	36	36	40	40
Floor	804.3	806.2	500	500
Max/Min rating change allowed	148.8	149.4	411.9	411.9
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	1276	1273	561.4	561.4
New weighted rating	1272.9	1268.9	561.4	561.4
New weighted performance	903.8	904	0	0
Temp new rating	1276	1273	561.4	561.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1276	1273	561.4	561.4
New K-factor	36	36	40	40
New floor	804.3	806.2	500	500

Item	Main	Standard
	0	0
	0	0
	6	6
	15	15
	4	4
	0	0
History	106	106

Games since
	Main 6	Standard 6		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	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	83	53.5	64.46	122.9	1074.2	1197.1
Standard	83	53.5	64.46	122.9	1074.2	1197.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1276	1273	561.4	561.4
2025-09-01	1276	1273	561.4	561.4
2025-08-01	1276	1273	561.4	561.4
2025-07-01	1276	1273	561.4	561.4
2025-06-01	1276	1273	561.4	561.4
2025-05-01	1276	1273	561.4	561.4
2025-04-01	1276	1273	561.4	561.4
2025-03-01	1276	1273	561.4	561.4
2025-02-01	1274	1270.9	561.4	561.4
2025-01-01	1241.9	1231	561.4	561.4
2024-12-01	1241.9	1231	561.4	561.4
2024-11-01	1241.9	1231	561.4	561.4
2024-10-01	1241.9	1231	561.4	561.4
2024-09-01	1241.9	1231	561.4	561.4
2024-08-01	1304.3	1306.2	561.4	561.4
2024-07-01	1300.7	1301.2	561.4	561.4
2024-06-01	1300.7	1301.2	561.4	561.4
2024-08-01	1300.7	1301.2	561.4	561.4
2024-04-01	1300.7	1301.2	561.4	561.4
2024-03-01	1300.7	1301.2	561.4	561.4
2024-02-01	1300.7	1301.2	561.4	561.4
2024-01-01	1300.7	1301.2	561.4	561.4
2023-12-01	1300.7	1301.2	561.4	561.4
2023-11-01	1300.7	1301.2	561.4	561.4

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 Tshwane North School District Team League Finals (U19)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
2	2024 Tshwane North School District Cluster 4 & 5 Team League (U19)	2024-07-20	2024-07-20	Standard	Tshwane (GTP)	3	2	1	Yes	Analysis
3	2023 Gauteng Top Schools (U17 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
4	2023 Tshwane North School District CLOSED League Championships (D3)	2023-08-12	2023-08-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	Tuks Junior Developmental Chess Tournament 2023 (Blue)	2023-03-18	2023-03-18	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
6	2022 D3 Cluster Teams (U15 Mixed)	2022-05-28	2022-05-28	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
7	2019 South African Junior Team Championships (U14C)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
8	2019 TC SAJCC Prep Tournament (B)	2019-11-30	2019-11-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
9	2019 Gauteng School League Finals (U13 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
10	2019 D3 Team League (U13)	2019-07-20	2019-07-20	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
11	Wonderboom Interhuis 2019 (U13)	2019-05-04	2019-05-04	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
12	2019 Gauteng Primary Schools Individual Chess Championships (U13 Boys)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
13	2019 D3 Individuals (U13 Boys)	2019-04-13	2019-04-13	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
14	2019 Blou Bul (D)	2019-02-16	2019-02-16	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
15	2018 Gauteng League Final (U11)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
16	2018 Alekhine Open (D)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	4	Yes	Analysis
17	2018 D3 Tshwane North Individual Chess Championships (U11 Mixed)	2018-03-24	2018-03-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	8	Tournament 2019 Blou Bul				Tournament Wonderboom Interhuis 2019
		date 2019-02-16	rnd 5	type Standard	result 1	date 2019-05-04	rnd 2	type Standard	result 1
		Opponent Molete, E (Emanuel)				Opponent Steyn, S (Sydney)
2	6	Tournament 2022 D3 Cluster Teams				Tournament Tuks Junior Developmental Chess Tournament 2023
		date 2022-05-28	rnd 5	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Raganya, K (Kerapetse)				Opponent Kock, L (Luca)
3	6	Tournament 2019 D3 Team League				Tournament 2019 Gauteng School League Finals
		date 2019-07-20	rnd 1	type Standard	result 1	date 2019-08-23	rnd 1	type Standard	result 1
		Opponent Fuller, J (James)				Opponent Haley, B (Brandon)

#	Games	Start				End
1	8	Tournament 2019 Blou Bul				Tournament Wonderboom Interhuis 2019
		date 2019-02-16	rnd 5	type Standard	result 1	date 2019-05-04	rnd 2	type Standard	result 1
		Opponent Molete, E (Emanuel)				Opponent Steyn, S (Sydney)
2	6	Tournament 2022 D3 Cluster Teams				Tournament Tuks Junior Developmental Chess Tournament 2023
		date 2022-05-28	rnd 5	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Raganya, K (Kerapetse)				Opponent Kock, L (Luca)
3	6	Tournament 2019 D3 Team League				Tournament 2019 Gauteng School League Finals
		date 2019-07-20	rnd 1	type Standard	result 1	date 2019-08-23	rnd 1	type Standard	result 1
		Opponent Fuller, J (James)				Opponent Haley, B (Brandon)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 2022 D3 Cluster Teams				Tournament Tuks Junior Developmental Chess Tournament 2023
		date 2022-05-28	rnd 5	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Raganya, K (Kerapetse)				Opponent Kock, L (Luca)
2	6	Tournament 2019 D3 Team League				Tournament 2019 Gauteng School League Finals
		date 2019-07-20	rnd 1	type Standard	result 1	date 2019-08-23	rnd 1	type Standard	result 1
		Opponent Fuller, J (James)				Opponent Haley, B (Brandon)
3	4	Tournament 2023 Gauteng Top Schools				Tournament 2024 Tshwane North School District Cluster 4 & 5 Team League
		date 2023-08-19	rnd 3	type Standard	result 1	date 2024-07-20	rnd 1	type Standard	result 1
		Opponent Naick, J (Jaeden)				Opponent Monaledi, O (Otsile)

#	Games	Start				End
1	6	Tournament 2022 D3 Cluster Teams				Tournament Tuks Junior Developmental Chess Tournament 2023
		date 2022-05-28	rnd 5	type Standard	result 1	date 2023-03-18	rnd 5	type Standard	result 1
		Opponent Raganya, K (Kerapetse)				Opponent Kock, L (Luca)
2	6	Tournament 2019 D3 Team League				Tournament 2019 Gauteng School League Finals
		date 2019-07-20	rnd 1	type Standard	result 1	date 2019-08-23	rnd 1	type Standard	result 1
		Opponent Fuller, J (James)				Opponent Haley, B (Brandon)
3	4	Tournament 2023 Gauteng Top Schools				Tournament 2024 Tshwane North School District Cluster 4 & 5 Team League
		date 2023-08-19	rnd 3	type Standard	result 1	date 2024-07-20	rnd 1	type Standard	result 1
		Opponent Naick, J (Jaeden)				Opponent Monaledi, O (Otsile)

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	Monaledi ,O (Otsile)	2	1	0	2	1	0	0	0	0	0	0	0
1	Monaledi ,O (Otsile)	2	1371.6	1371.6	2	1371.8	1371.6	0	0	0	0	0	0
2	Frias ,M (Marco)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Frias ,M (Marco)	2	739.1	314.1	2	737.3	314.1	0	0	0	0	0	0
3	Coetzee ,W (Willem Christoffel)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Coetzee ,W (Willem Christoffel)	2	1336.2	911.2	2	1347.1	911.2	0	0	0	0	0	0
4	Crause ,M (Mynhardt)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Crause ,M (Mynhardt)	1	1125.3	700.3	1	1123.3	700.3	0	0	0	0	0	0
5	Sadiki ,C (Calvin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Sadiki ,C (Calvin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Engelbrecht ,A (Abbygail)	1	1	425	1	1	425	0	0	0	0	0	0
6	Engelbrecht ,A (Abbygail)	1	1178.1	1603.1	1	1172.4	1603.1	0	0	0	0	0	0
7	Molete ,E (Emanuel)	1	1	425	1	1	425	0	0	0	0	0	0
7	Molete ,E (Emanuel)	1	500	925	1	500	925	0	0	0	0	0	0
8	Mathete ,NJ (Jonathan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mathete ,NJ (Jonathan)	1	1157.7	1582.7	1	1157.4	1582.7	0	0	0	0	0	0
9	Mokoane ,S (Sibusiso)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mokoane ,S (Sibusiso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Senokwanyane ,B (Bonolo Archibald)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Senokwanyane ,B (Bonolo Archibald)	1	1150.9	725.9	1	1140.8	725.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

De Beer, JP (Jan Petrus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms