Chess South Africa Ratings Database

PLAYER PAGE

Personal

Marais, AJ (Alwyn Johannes)

Chess SA id

105020688

FIDE id

Date of birth

2005-01-17 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-08-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1335	1340	1330.1	1330.1
Raw rating	1335	1340	1330.1	1330.1
Weighted rating	1335	1340	1330.1	1330.1
Weighted performance	494.5	493.7	0	0
Floor	835	840	830.1	830.1
K-factor	36	36	36	36
Min/Max rating change allowed	136.8	135.8	137.8	137.8
Highest rating	1346.2 2018-01-01	1346.2 2018-01-01	1330.1 2019-10-01	1330.1 2019-10-01
Highest raw rating	1335 2024-02-01	1340 2024-02-01	1330.1 2024-02-01	1330.1 2024-02-01
Highest weighted rating	1335 2024-08-01	1340 2024-08-01	1330.1 2019-10-01	1330.1 2019-10-01
Highest weighted performance	1346.2 2018-01-01	1346.2 2018-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1335	1340	1330.1	1330.1
Analysis
Rating	1335	1340	1330.1	1330.1
Raw rating	1335	1340	1330.1	1330.1
Weighted rating	1335	1340	1330.1
Weighted performance	494.5	493.7	0
K-factor	36	36	36	36
Floor	835	840	830.1	830.1
Max/Min rating change allowed	136.8	135.8	137.8	137.8
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	1335	1340	1330.1	1330.1
New weighted rating	1335	1340	1330.1	1330.1
New weighted performance	494	493.2	0	0
Temp new rating	1335	1340	1330.1	1330.1
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1335	1340	1330.1	1330.1
New K-factor	36	36	36	36
New floor	835	840	830.1	830.1

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	5	5	0	0
	0	0	0	0
History	840	816	18	6

Games since
	Main 0	Standard 0		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	78	44	56.41	54.5	1227	1281.5
Standard	78	44	56.41	54.5	1227	1281.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1335	1340	1330.1	1330.1
2025-09-01	1335	1340	1330.1	1330.1
2025-08-01	1335	1340	1330.1	1330.1
2025-07-01	1335	1340	1330.1	1330.1
2025-06-01	1335	1340	1330.1	1330.1
2025-05-01	1335	1340	1330.1	1330.1
2025-04-01	1335	1340	1330.1	1330.1
2025-03-01	1335	1340	1330.1	1330.1
2025-02-01	1335	1340	1330.1	1330.1
2025-01-01	1335	1340	1330.1	1330.1
2024-12-01	1335	1340	1330.1	1330.1
2024-11-01	1335	1340	1330.1	1330.1
2024-10-01	1335	1340	1330.1	1330.1
2024-09-01	1335	1340	1330.1	1330.1
2024-08-01	1335	1340	1330.1	1330.1
2024-07-01	1335	1340	1330.1	1330.1
2024-06-01	1335	1340	1330.1	1330.1
2024-08-01	1335	1340	1330.1	1330.1
2024-04-01	1335	1340	1330.1	1330.1
2024-03-01	1335	1340	1330.1	1330.1
2024-02-01	1335	1340	1330.1	1330.1
2024-01-01	1335	1340	1330.1	1330.1
2023-12-01	1335	1340	1330.1	1330.1
2023-11-01	1335	1340	1330.1	1330.1

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	2022 Gauteng Schools Team Championships (U19 Open)	2022-08-26	2022-08-26	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
2	2019 South African Top Schools Team Championships (U15+U17 Open)	2020-01-10	2020-01-11	Standard	4 Knights (4K)	5	4	3	Yes	Analysis
3	2019 D4 Tshwane South Schools League Team Finals (U15)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
4	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
5	2018 Gauteng North Open (B)	2018-10-20	2018-10-21	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
6	2018 Etienne Lewis Trials (U14 Boys)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
7	2018 D4 Tshwane South Schools League Finals (U13)	2018-08-03	2018-08-03	Standard	Tshwane (GTP)	5	3	1.5	Yes	Analysis
8	2018 Capablanca RR (E)	2018-04-26	2018-05-01	Standard	Tshwane (GTP)	9	9	4	Yes	Analysis
9	2018 South African Junior Closed Chess Championships (U14 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	4	Yes	Analysis
10	2018 Blou Bul Open (B)	2018-02-17	2018-02-17	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
11	2018 Tshwane Registration Open Chess Tournament (B)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
12	South African Junior Wildcard Championships 2017 (U14 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
13	South African Junior Team Championships 2017 (U14A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis

#	Games	Start				End
1	11	Tournament South African Junior Team Championships 2018				Tournament 2019 South African Top Schools Team Championships
		date 2018-12-18	rnd 5	type Standard	result 0.5	date 2020-01-11	rnd 4	type Standard	result 1
		Opponent Prince, SN (Sharna)				Opponent Mokotedi, K (Kabelo)
2	5	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Nhlapo, V (Vangile)				Opponent Moremi, L (Lethabo)
3	4	Tournament 2018 Gauteng North Open				Tournament South African Junior Team Championships 2018
		date 2018-10-21	rnd 5	type Standard	result 0.5	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Fourie, K (Keanan)				Opponent Spiller, BC (Bryndon)

#	Games	Start				End
1	11	Tournament South African Junior Team Championships 2018				Tournament 2019 South African Top Schools Team Championships
		date 2018-12-18	rnd 5	type Standard	result 0.5	date 2020-01-11	rnd 4	type Standard	result 1
		Opponent Prince, SN (Sharna)				Opponent Mokotedi, K (Kabelo)
2	5	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Nhlapo, V (Vangile)				Opponent Moremi, L (Lethabo)
3	4	Tournament 2018 Gauteng North Open				Tournament South African Junior Team Championships 2018
		date 2018-10-21	rnd 5	type Standard	result 0.5	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Fourie, K (Keanan)				Opponent Spiller, BC (Bryndon)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament South African Junior Team Championships 2018				Tournament 2019 D4 Tshwane South Schools League Team Finals
		date 2018-12-19	rnd 6	type Standard	result 1	date 2019-07-27	rnd 4	type Standard	result 1
		Opponent Shaw, A (Amy)				Opponent Peacock, KP (Keagan Preston)
2	3	Tournament 2019 South African Top Schools Team Championships				Tournament 2019 South African Top Schools Team Championships
		date 2020-01-10	rnd 1	type Standard	result 1	date 2020-01-11	rnd 4	type Standard	result 1
		Opponent Botha, M (Marieka)				Opponent Mokotedi, K (Kabelo)
3	3	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 Tshwane Registration Open Chess Tournament
		date 2018-01-27	rnd 2	type Standard	result 1	date 2018-01-27	rnd 4	type Standard	result 1
		Opponent Van Heerden, L (Lara)				Opponent Vather, S (Shayur)

#	Games	Start				End
1	6	Tournament South African Junior Team Championships 2018				Tournament 2019 D4 Tshwane South Schools League Team Finals
		date 2018-12-19	rnd 6	type Standard	result 1	date 2019-07-27	rnd 4	type Standard	result 1
		Opponent Shaw, A (Amy)				Opponent Peacock, KP (Keagan Preston)
2	3	Tournament 2019 South African Top Schools Team Championships				Tournament 2019 South African Top Schools Team Championships
		date 2020-01-10	rnd 1	type Standard	result 1	date 2020-01-11	rnd 4	type Standard	result 1
		Opponent Botha, M (Marieka)				Opponent Mokotedi, K (Kabelo)
3	3	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 Tshwane Registration Open Chess Tournament
		date 2018-01-27	rnd 2	type Standard	result 1	date 2018-01-27	rnd 4	type Standard	result 1
		Opponent Van Heerden, L (Lara)				Opponent Vather, S (Shayur)

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	Odendaal ,MM (Mikhal Marcus)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Odendaal ,MM (Mikhal Marcus)	3	1219.7	1219.7	3	1214.6	1219.7	0	0	0	0	0	0
2	Nair ,M (Mayaskar)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Nair ,M (Mayaskar)	2	1159.2	734.2	2	1161.3	734.2	0	0	0	0	0	0
3	Vather ,S (Shayur)	2	1	0	2	1	0	0	0	0	0	0	0
3	Vather ,S (Shayur)	2	1421.9	1421.9	2	1421.2	1421.9	0	0	0	0	0	0
4	Koaile ,T (Thapelo)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Koaile ,T (Thapelo)	2	1203	778	2	1200.6	778	0	0	0	0	0	0
5	Macdonald ,B (Brandon)	1	1	425	1	1	425	0	0	0	0	0	0
5	Macdonald ,B (Brandon)	1	1270.1	1695.1	1	1268.5	1695.1	0	0	0	0	0	0
6	Nhlapo ,V (Vangile)	1	1	425	1	1	425	0	0	0	0	0	0
6	Nhlapo ,V (Vangile)	1	1016	1441	1	1016	1441	0	0	0	0	0	0
7	Dyakuseni ,P (Peacemaker)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Dyakuseni ,P (Peacemaker)	1	1913.8	1488.8	1	1913.8	1488.8	0	0	0	0	0	0
8	Smith ,CD (Christopher David)	1	1	425	1	1	425	0	0	0	0	0	0
8	Smith ,CD (Christopher David)	1	1029	1454	1	1029	1454	0	0	0	0	0	0
9	Marais ,DJ (Dawid Jacobus)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Marais ,DJ (Dawid Jacobus)	1	1332.6	907.6	1	1335.5	907.6	0	0	0	0	0	0
10	Kruger ,MJ (Matthew John)	1	1	425	1	1	425	0	0	0	0	0	0
10	Kruger ,MJ (Matthew John)	1	1484.5	1909.5	1	1486.6	1909.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Marais, AJ (Alwyn Johannes)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms