Chess South Africa Ratings Database

PLAYER PAGE

Personal

Janssen, A (Alec)

Chess SA id

1090119605

FIDE id

Date of birth

2009-03-20 (U18)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-09-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1222.6	1270.7	1060.8	1200
Raw rating	1222.6	1270.7	1060.8	1200
Weighted rating	1222.6	1270.7	1060.8	1200
Weighted performance	735.2	781.3	0	0
Floor	722.6	772.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.6	149.9	202.2	165.8
Highest rating	1222.6 2024-09-01	1284.1 2022-09-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1222.6 2024-02-01	1272.1 2022-09-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1222.6 2024-09-01	1272.1 2024-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1206.1 2022-09-01	1284.1 2022-09-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1222.6	1270.7	1060.8	1200
Analysis
Rating	1222.6	1270.7	1060.8	1200
Raw rating	1222.6	1270.7	1060.8	1200
Weighted rating	1222.6	1270.7	1060.8
Weighted performance	735.2	781.3	0
K-factor	36	36	36	36
Floor	722.6	772.1	700	700
Max/Min rating change allowed	160.6	149.9	202.2	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	1222.6	1270.7	1060.8	1200
New weighted rating	1222.6	1270.7	1060.8	1200
New weighted performance	734.8	780.8	0	0
Temp new rating	1222.6	1270.7	1060.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1222.6	1270.7	1060.8	1200
New K-factor	36	36	36	36
New floor	722.6	772.1	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	41	35	6
	5	5	0
History	60	54	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	60	29	48.33	-14.2	1188	1173.9
Standard	54	29	53.7	31.5	1187.9	1219.4
Rapid	6	0	0	-425	1189.3	764.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1222.6	1270.7	1060.8	1200
2025-09-01	1222.6	1270.7	1060.8	1200
2025-08-01	1222.6	1270.7	1060.8	1200
2025-07-01	1222.6	1270.7	1060.8	1200
2025-06-01	1222.6	1270.7	1060.8	1200
2025-05-01	1222.6	1270.7	1060.8	1200
2025-04-01	1222.6	1270.7	1060.8	1200
2025-03-01	1222.6	1270.7	1060.8	1200
2025-02-01	1222.6	1270.7	1060.8	1200
2025-01-01	1222.6	1270.7	1060.8	1200
2024-12-01	1222.6	1270.7	1060.8	1200
2024-11-01	1222.6	1270.7	1060.8	1200
2024-10-01	1222.6	1270.7	1060.8	1200
2024-09-01	1222.6	1270.7	1060.8	1200
2024-08-01	1222.6	1270.7	1060.8	1200
2024-07-01	1222.6	1270.7	1060.8	1200
2024-06-01	1222.6	1270.7	1060.8	1200
2024-08-01	1222.6	1270.7	1060.8	1200
2024-04-01	1222.6	1270.7	1060.8	1200
2024-03-01	1222.6	1270.7	1060.8	1200
2024-02-01	1222.6	1270.7	1060.8	1200
2024-01-01	1222.6	1270.7	1060.8	1200
2023-12-01	1222.6	1270.7	1060.8	1200
2023-11-01	1222.6	1270.7	1060.8	1200

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	West Rand Trials 2022 (U14)	2022-09-03	2022-09-03	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
2	2nd West Rand Open 2022 (Juniors)	2022-08-06	2022-08-06	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
3	2022 Gauteng Schools Individual Chess Championship (U13 Boys)	2022-06-18	2022-06-18	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	D2 Schools Individuals 2022 (U13 Boys)	2022-05-07	2022-05-07	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
5	RMS Swiss For Rating of Players 2022 (U13)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	0	Yes	Analysis
6	West Rand Juniors 2022 (U14)	2022-04-09	2022-04-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
7	West Rand Open 2022 (U14)	2022-02-05	2022-02-05	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
8	2022 Gauteng Interregion (U14 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
9	West Rand Trials 2021 (U14)	2021-12-04	2021-12-04	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
10	JNW Club - Trinityhouse Little Falls Open 2020 (D)	2020-03-14	2020-03-14	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
11	JNW Club - Bryanston Open1 2020 (D)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
12	JNW Chess Club - Muldersdrif 2019 (B)	2019-10-18	2019-10-18	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament West Rand Trials 2021				Tournament West Rand Open 2022
		date 2021-12-04	rnd 3	type Standard	result 1	date 2022-02-05	rnd 3	type Standard	result 1
		Opponent Nale, K (Kamogelo)				Opponent Nkieane, S (Sbusiso Brian)
2	4	Tournament D2 Schools Individuals 2022				Tournament D2 Schools Individuals 2022
		date 2022-05-07	rnd 1	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Pereira, R (Ricardo)				Opponent Nolan, CB (Christiaan)
3	2	Tournament West Rand Trials 2022				Tournament West Rand Trials 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Sempe, M (Maya)				Opponent Sardinha, K (Keanu)

#	Games	Start				End
1	6	Tournament West Rand Trials 2021				Tournament West Rand Open 2022
		date 2021-12-04	rnd 3	type Standard	result 1	date 2022-02-05	rnd 3	type Standard	result 1
		Opponent Nale, K (Kamogelo)				Opponent Nkieane, S (Sbusiso Brian)
2	4	Tournament D2 Schools Individuals 2022				Tournament D2 Schools Individuals 2022
		date 2022-05-07	rnd 1	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Pereira, R (Ricardo)				Opponent Nolan, CB (Christiaan)
3	2	Tournament West Rand Trials 2022				Tournament West Rand Trials 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Sempe, M (Maya)				Opponent Sardinha, K (Keanu)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament West Rand Trials 2021				Tournament West Rand Open 2022
		date 2021-12-04	rnd 3	type Standard	result 1	date 2022-02-05	rnd 3	type Standard	result 1
		Opponent Nale, K (Kamogelo)				Opponent Nkieane, S (Sbusiso Brian)
2	4	Tournament D2 Schools Individuals 2022				Tournament D2 Schools Individuals 2022
		date 2022-05-07	rnd 1	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Pereira, R (Ricardo)				Opponent Nolan, CB (Christiaan)
3	2	Tournament West Rand Trials 2022				Tournament West Rand Trials 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Sempe, M (Maya)				Opponent Sardinha, K (Keanu)

#	Games	Start				End
1	6	Tournament West Rand Trials 2021				Tournament West Rand Open 2022
		date 2021-12-04	rnd 3	type Standard	result 1	date 2022-02-05	rnd 3	type Standard	result 1
		Opponent Nale, K (Kamogelo)				Opponent Nkieane, S (Sbusiso Brian)
2	4	Tournament D2 Schools Individuals 2022				Tournament D2 Schools Individuals 2022
		date 2022-05-07	rnd 1	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Pereira, R (Ricardo)				Opponent Nolan, CB (Christiaan)
3	2	Tournament West Rand Trials 2022				Tournament West Rand Trials 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Sempe, M (Maya)				Opponent Sardinha, K (Keanu)

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	Nkieane ,S (Sbusiso Brian)	2	1	0	2	1	0	0	0	0	0	0	0
1	Nkieane ,S (Sbusiso Brian)	2	1188.6	1188.6	2	1187.6	1188.6	0	0	0	0	0	0
2	Sardinha ,K (Keanu)	2	2	425	2	2	425	0	0	0	0	0	0
2	Sardinha ,K (Keanu)	2	1150.2	1575.2	2	1148	1575.2	0	0	0	0	0	0
3	Tshatsheka ,J (Junior)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Tshatsheka ,J (Junior)	2	1394.9	969.9	2	1396.2	969.9	0	0	0	0	0	0
4	Sibewu ,M (Masego)	2	1	0	2	1	0	0	0	0	0	0	0
4	Sibewu ,M (Masego)	2	1202	1202	2	1200.6	1202	0	0	0	0	0	0
5	Johnson ,A (Ashar)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Johnson ,A (Ashar)	1	1253.2	828.2	1	1251.8	828.2	0	0	0	0	0	0
6	Schutte ,H (Hendrik)	1	1	425	1	1	425	0	0	0	0	0	0
6	Schutte ,H (Hendrik)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Lin ,X (Xingjie)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Lin ,X (Xingjie)	1	1126.3	701.3	1	1110.8	701.3	0	0	0	0	0	0
8	Klaas ,O (Oyintanda)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Klaas ,O (Oyintanda)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Sibanda ,M (Malaika)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Sibanda ,M (Malaika)	1	1124.7	699.7	1	1103.6	699.7	0	0	0	0	0	0
10	Breytenbach ,LL (Louis Lourens)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Breytenbach ,LL (Louis Lourens)	1	532.6	107.6	1	536	107.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Janssen, A (Alec)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms