Chess South Africa Ratings Database

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Personal

Marais, J (Jan-Luc)

Chess SA id

1040151783

FIDE id

Date of birth

2004-11-04 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1313.5	1297.9	1203.2	1200
Raw rating	1313.5	1297.9	1203.2	1200
Weighted rating	1299.2	1284.2	1196.7	1200
Weighted performance	1207.7	0	0	0
Floor	813.5	797.9	703.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	141	144.2	165.1	165.8
Highest rating	1377.2 2023-09-01	1373.6 2023-09-01	1203.2 2024-08-01	1200 2018-10-01
Highest raw rating	1313.5 2025-09-30	1297.9 2025-09-30	1203.2 2024-08-01	1200 2024-03-01
Highest weighted rating	1297.3 2025-09-30	1283 2025-09-30	1203.2 2018-10-01	1200 2018-10-01
Highest weighted performance	1377.2 2023-09-01	1373.6 2023-09-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1313.5	1297.9	1203.2	1200
Analysis
Rating	1313.5	1297.9	1203.2	1200
Raw rating	1313.5	1297.9	1203.2	1200
Weighted rating	1299.2	1284.2	1196.7
Weighted performance	1207.7	0	0
K-factor	36	36	36	36
Floor	813.5	797.9	703.2	700
Max/Min rating change allowed	141	144.2	165.1	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	1313.5	1297.9	1203.2	1200
New weighted rating	1300.9	1285.4	1198.1	1200
New weighted performance	1199.5	0	0	0
Temp new rating	1313.5	1297.9	1203.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1313.5	1297.9	1203.2	1200
New K-factor	36	36	36	36
New floor	813.5	797.9	703.2	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	7	0	7
	21	15	6
	0	0	0
	0	0	0
History	33	20	13

Games since
	Main 18	Standard 5		Rapid 13		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
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	5	1	20	-255	1753.4	1498.4
Standard	5	1	20	-255	1753.4	1498.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	33	17	51.52	12.9	1370.5	1383.3
Standard	20	11	55	42.5	1333.9	1376.4
Rapid	13	6	46.15	-32.7	1426.6	1394
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1313.5	1297.9	1203.2	1200
2025-09-30	1313.5	1297.9	1203.2	1200
2025-09-01	1300.7	1281.7	1203.2	1200
2025-08-01	1300.7	1281.7	1203.2	1200
2025-07-01	1300.7	1281.7	1203.2	1200
2025-06-01	1300.7	1281.7	1203.2	1200
2025-05-01	1300.7	1281.7	1203.2	1200
2025-04-01	1300.7	1281.7	1203.2	1200
2025-03-01	1300.7	1281.7	1203.2	1200
2025-02-01	1300.7	1281.7	1203.2	1200
2025-01-01	1300.7	1281.7	1203.2	1200
2024-12-01	1300.7	1281.7	1203.2	1200
2024-11-01	1300.7	1281.7	1203.2	1200
2024-10-01	1300.7	1281.7	1203.2	1200
2024-09-01	1300.7	1281.7	1203.2	1200
2024-08-01	1300.7	1281.7	1203.2	1200
2024-07-01	1271.2	1281.7	1148.8	1200
2024-09-01	1271.2	1281.7	1148.8	1200
2024-05-01	1271.2	1281.7	1148.8	1200
2024-04-01	1271.2	1281.7	1148.8	1200
2024-03-01	1271.2	1281.7	1148.8	1200
2024-02-01	1271.2	1281.7	1148.8	1200
2024-01-01	1271.2	1281.7	1148.8	1200
2023-12-01	1271.2	1281.7	1148.8	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	Tshwane Chess Club Clash 2025 (Prestige)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tshwane Chess Club Clash 2025 (Prestige)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	JNW Rapid - Helpmekaar Kollege 2024	2024-07-28	2024-07-28	Rapid	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
3	Chess Power House Festive Rapid 2023 (B)	2023-12-15	2023-12-15	Rapid	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis
4	2023 Alekhine Open Tournament (C)	2023-09-09	2023-09-09	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	2023 Woman's Day Open Chess Tournament (Rook)	2023-08-09	2023-08-09	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
6	JNW Open - Crawford 2023 (Adult)	2023-03-04	2023-03-04	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament 2023 Woman's Day Open Chess Tournament				Tournament 2023 Alekhine Open Tournament
		date 2023-08-09	rnd 1	type Standard	result 1	date 2023-09-09	rnd 2	type Standard	result 1
		Opponent Mphahlele, T (Thabo)				Opponent Van Wyk, J (Jonathan)
2	2	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 4	type Rapid	result 1	date 2024-07-28	rnd 5	type Rapid	result 1
		Opponent Williams, J (Joshua)				Opponent Kgotse, T (Thoriso)
3	2	Tournament 2023 Alekhine Open Tournament				Tournament Chess Power House Festive Rapid 2023
		date 2023-09-09	rnd 5	type Standard	result 1	date 2023-12-15	rnd 1	type Rapid	result 1
		Opponent Acker, S (Steven)				Opponent Lemme, T (Tumelo)

#	Games	Start				End
1	7	Tournament 2023 Woman's Day Open Chess Tournament				Tournament 2023 Alekhine Open Tournament
		date 2023-08-09	rnd 1	type Standard	result 1	date 2023-09-09	rnd 2	type Standard	result 1
		Opponent Mphahlele, T (Thabo)				Opponent Van Wyk, J (Jonathan)
2	1	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 3	type Standard	result 1	date 2025-09-13	rnd 3	type Standard	result 1
		Opponent Hobyani, T (Tshepo)				Opponent Hobyani, T (Tshepo)
3	1	Tournament 2023 Alekhine Open Tournament				Tournament 2023 Alekhine Open Tournament
		date 2023-09-09	rnd 5	type Standard	result 1	date 2023-09-09	rnd 5	type Standard	result 1
		Opponent Acker, S (Steven)				Opponent Acker, S (Steven)

#	Games	Start				End
1	2	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 4	type Rapid	result 1	date 2024-07-28	rnd 5	type Rapid	result 1
		Opponent Williams, J (Joshua)				Opponent Kgotse, T (Thoriso)
2	1	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 7	type Rapid	result 1	date 2024-07-28	rnd 7	type Rapid	result 1
		Opponent Fragoso, TD (Tshegofatso)				Opponent Fragoso, TD (Tshegofatso)
3	1	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 2	type Rapid	result 1	date 2024-07-28	rnd 2	type Rapid	result 1
		Opponent Mtsweni, T (Thapelo)				Opponent Mtsweni, T (Thapelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament 2023 Woman's Day Open Chess Tournament				Tournament 2023 Alekhine Open Tournament
		date 2023-08-09	rnd 1	type Standard	result 1	date 2023-09-09	rnd 2	type Standard	result 1
		Opponent Mphahlele, T (Thabo)				Opponent Van Wyk, J (Jonathan)
2	2	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 4	type Rapid	result 1	date 2024-07-28	rnd 5	type Rapid	result 1
		Opponent Williams, J (Joshua)				Opponent Kgotse, T (Thoriso)
3	2	Tournament 2023 Alekhine Open Tournament				Tournament Chess Power House Festive Rapid 2023
		date 2023-09-09	rnd 5	type Standard	result 1	date 2023-12-15	rnd 1	type Rapid	result 1
		Opponent Acker, S (Steven)				Opponent Lemme, T (Tumelo)

#	Games	Start				End
1	7	Tournament 2023 Woman's Day Open Chess Tournament				Tournament 2023 Alekhine Open Tournament
		date 2023-08-09	rnd 1	type Standard	result 1	date 2023-09-09	rnd 2	type Standard	result 1
		Opponent Mphahlele, T (Thabo)				Opponent Van Wyk, J (Jonathan)
2	1	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 3	type Standard	result 1	date 2025-09-13	rnd 3	type Standard	result 1
		Opponent Hobyani, T (Tshepo)				Opponent Hobyani, T (Tshepo)
3	1	Tournament 2023 Alekhine Open Tournament				Tournament 2023 Alekhine Open Tournament
		date 2023-09-09	rnd 5	type Standard	result 1	date 2023-09-09	rnd 5	type Standard	result 1
		Opponent Acker, S (Steven)				Opponent Acker, S (Steven)

#	Games	Start				End
1	2	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 4	type Rapid	result 1	date 2024-07-28	rnd 5	type Rapid	result 1
		Opponent Williams, J (Joshua)				Opponent Kgotse, T (Thoriso)
2	1	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 7	type Rapid	result 1	date 2024-07-28	rnd 7	type Rapid	result 1
		Opponent Fragoso, TD (Tshegofatso)				Opponent Fragoso, TD (Tshegofatso)
3	1	Tournament JNW Rapid - Helpmekaar Kollege 2024				Tournament JNW Rapid - Helpmekaar Kollege 2024
		date 2024-07-28	rnd 2	type Rapid	result 1	date 2024-07-28	rnd 2	type Rapid	result 1
		Opponent Mtsweni, T (Thapelo)				Opponent Mtsweni, T (Thapelo)

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	Mann ,I (Iowan)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Mann ,I (Iowan)	1	1527.6	1102.6	1	1517.7	1102.6	0	0	0	0	0	0
2	Acker ,S (Steven)	1	1	425	1	1	425	0	0	0	0	0	0
2	Acker ,S (Steven)	1	1320.4	1745.4	1	1315.3	1745.4	0	0	0	0	0	0
3	Dinham ,J (Jenny)	1	1	425	1	1	425	0	0	0	0	0	0
3	Dinham ,J (Jenny)	1	1090.8	1515.8	1	1094.4	1515.8	0	0	0	0	0	0
4	Hobyani ,T (Tshepo)	1	1	425	1	1	425	0	0	0	0	0	0
4	Hobyani ,T (Tshepo)	1	1220.9	1645.9	1	1218	1645.9	0	0	0	0	0	0
5	Parag ,Y (Yakesh)	1	1	425	1	1	425	0	0	0	0	0	0
5	Parag ,Y (Yakesh)	1	1148.5	1573.5	1	1140.8	1573.5	0	0	0	0	0	0
6	Seitei ,N (Neo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Seitei ,N (Neo)	1	1212.7	1637.7	1	1207.7	1637.7	0	0	0	0	0	0
7	Jurisich ,J (Jared)	1	1	425	1	1	425	0	0	0	0	0	0
7	Jurisich ,J (Jared)	1	748.9	1173.9	1	754.8	1173.9	0	0	0	0	0	0
8	Van Rensburg ,W (Wayne)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Rensburg ,W (Wayne)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Mkotong ,B (Boipelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mkotong ,B (Boipelo)	1	1761.6	1336.6	1	1758.4	1336.6	0	0	0	0	0	0
10	Songo ,D (Divine)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Songo ,D (Divine)	1	1783	1358	1	1786.4	1358	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, J (Jan-Luc)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms