Chess South Africa Ratings Database

PLAYER PAGE

Personal

Chen, L (Louis)

Chess SA id

1130138180

FIDE id

Date of birth

2013-03-11 (U14)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

35.9

Junior GPX Points

1174.4

Item	Main	Standard	Rapid	Blitz
Rating	1365.9	1265	1374.6	1270
Raw rating	1337.4	1265	1374.6	1270
Weighted rating	1286.5	1254.1	1317.7	1233.9
Weighted performance	1365.9	1179.4	1229.1	0
Floor	837.4	772.1	874.6	770
K-factor	36	36	36	36
Min/Max rating change allowed	136.3	151.2	129.3	150.1
Highest rating	1365.9 2025-11-01	1469.1 2024-04-01	1374.6 2025-11-01	1290.3 2022-08-01
Highest raw rating	1337.4 2025-11-01	1272.1 2025-01-01	1374.6 2025-11-01	1270 2025-08-01
Highest weighted rating	1286.5 2025-11-01	1250.1 2025-09-01	1317.7 2025-11-01	1222.5 2025-08-01
Highest weighted performance	1365.9 2025-11-01	1469.1 2024-04-01	1328.4 2024-03-01	1290.3 2022-08-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-8.1	0	0	0
New rating	1357.8	1265	1374.6	1270
Analysis
Rating	1365.9	1265	1374.6	1270
Raw rating	1337.4	1265	1374.6	1270
Weighted rating	1286.5	1254.1	1317.7
Weighted performance	1365.9	1179.4	1229.1
K-factor	36	36	36	36
Floor	837.4	772.1	874.6	770
Max/Min rating change allowed	136.3	151.2	129.3	150.1
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	1337.4	1265	1374.6	1270
New weighted rating	1291.6	1255.7	1323.2	1237.3
New weighted performance	1357.8	1172.2	1221.1	0
Temp new rating	1357.8	1265	1374.6	1270
Temp new rating +/-	-8.1	0	0	0
Final new rating +/-	-8.1	0	0	0
New rating	1357.8	1265	1374.6	1270
New K-factor	36	36	36	36
New floor	837.4	772.1	874.6	770

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	35	20	10	5
	24	16	8	0
	9	0	9	0
	10	0	5	5
	0	0	0	0
History	78	36	32	10

Games since
	Main 59	Standard 36		Rapid 18		Blitz 5
Gender	Male
Age group	U14
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	2546		33		24
Male	2049		31		22
U14	425		2		2
U14 Male	312		2		2
Standard
	RSA		Province		Region
Overall	3508		55		36
Male	2702		44		29
U14	667		13		9
U14 Male	469		7		6
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	35	21.5	61.43	97.1	1253.5	1350.7
Standard	20	9.5	47.5	-21.2	1261.8	1240.6
Rapid	10	8	80	255	1245.3	1500.3
Blitz	5	4	80	255	1236.6	1491.6
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	78	47	60.26	87.2	1241.6	1328.7
Standard	36	18.5	51.39	11.8	1280.7	1292.5
Rapid	32	21.5	67.19	146.1	1208.9	1355
Blitz	10	7	70	170	1205.3	1375.3

Date	Main	Standard	Rapid	Blitz
2025-11-01	1337.4	1265	1374.6	1270
2025-09-30	1295.4	1265	1315.9	1270
2025-09-01	1295.4	1265	1315.9	1270
2025-08-01	1282.5	1247.7	1315.9	1270
2025-07-01	1273.9	1246.6	1315.9	1218.4
2025-06-01	1271.7	1244.9	1315.9	1218.4
2025-05-01	1287.6	1262.5	1315.9	1218.4
2025-04-01	1287.6	1262.5	1315.9	1218.4
2025-03-01	1287.6	1262.5	1315.9	1218.4
2025-02-01	1301	1272.1	1315.9	1218.4
2025-01-01	1299.6	1272.1	1313.8	1218.4
2024-12-01	1269.7	1235.7	1313.8	1218.4
2024-11-01	1269.7	1235.7	1313.8	1218.4
2024-10-01	1284.2	1254.4	1313.8	1218.4
2024-09-01	1284.2	1254.4	1313.8	1218.4
2024-08-01	1284.2	1254.4	1313.8	1218.4
2024-07-01	1284.2	1254.4	1313.8	1218.4
2024-09-01	1284.2	1254.4	1313.8	1218.4
2024-05-01	1284.2	1254.4	1313.8	1218.4
2024-04-01	1246.1	1200	1313.8	1218.4
2024-03-01	1216.2	1200	1249.6	1218.4
2024-02-01	1214.8	1200	1249.6	1218.4
2024-01-01	1214.8	1200	1249.6	1218.4
2023-12-01	1214.8	1200	1249.6	1218.4

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	Heidedal Chess 25 October 2025 (B)	2025-10-25	2025-10-25	Rapid	Mangaung (FMB)	5	5	5	Yes	Analysis
2	Free State Closed 2025 (U14 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	Smart Chess Blitz 2025 (Junior)	2025-07-19	2025-07-19	Blitz	Mangaung (FMB)	5	5	4	Yes	Analysis
4	Spartan Bishops Championships Elite 2025 (U14)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	5	1	Yes	Analysis
5	Mangaung Metro Chess 9-10 May 2025 (B)	2025-05-09	2025-05-10	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Mangaung Metro Chess 7-8 February 2025 (B)	2025-02-07	2025-02-08	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
7	Mangaung Metro Chess 25 January 2025 (B)	2025-01-25	2025-01-25	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Heidedal Chess 25 October 2025 (B)	2025-10-25	2025-10-25	Rapid	Mangaung (FMB)	5	5	5	Yes	Analysis
2	Free State Closed 2025 (U14 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	Smart Chess Blitz 2025 (Junior)	2025-07-19	2025-07-19	Blitz	Mangaung (FMB)	5	5	4	Yes	Analysis
4	Spartan Bishops Championships Elite 2025 (U14)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	5	1	Yes	Analysis
5	Mangaung Metro Chess 9-10 May 2025 (B)	2025-05-09	2025-05-10	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Mangaung Metro Chess 7-8 February 2025 (B)	2025-02-07	2025-02-08	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
7	Mangaung Metro Chess 25 January 2025 (B)	2025-01-25	2025-01-25	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
8	Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3	Yes	Analysis
9	Mangaung Metro Chess 11-12 October 2024 (B)	2024-10-11	2024-10-12	Standard	Mangaung (FMB)	5	4	2	Yes	Analysis
10	Mangaung Metro Chess 12-13 April 2024 (C+D)	2024-04-12	2024-04-13	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
11	Mangaung Metro Chess 9 March 2024 (C)	2024-03-09	2024-03-09	Rapid	Mangaung (FMB)	5	3	3	Yes	Analysis
12	Mangaung Metro Chess 10 February 2024 (C)	2024-02-10	2024-02-10	Rapid	Mangaung (FMB)	5	5	2.5	Yes	Analysis
13	Bloemfontein League 25 August 2023 (U13+U15)	2023-08-25	2023-08-25	Rapid	Mangaung (FMB)	5	4	2	Yes	Analysis
14	August Primary School Chess Festival 2023 (Grade 4+5 A)	2023-08-04	2023-08-04	Rapid	Mangaung (FMB)	5	5	4	Yes	Analysis
15	Balans Blitz Chess 2022 (B)	2022-08-13	2022-08-13	Blitz	Mangaung (FMB)	5	5	3	Yes	Analysis
16	Bloemfontein Schools League 2022 (U13A+U15B)	2022-02-25	2022-02-25	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-04-13	rnd 3	type Standard	result 1
		Opponent Mofokeng, Z (Ziko)				Opponent Bothma, J (Johannes)
2	5	Tournament Heidedal Chess 25 October 2025				Tournament Heidedal Chess 25 October 2025
		date 2025-10-25	rnd 1	type Rapid	result 1	date 2025-10-25	rnd 5	type Rapid	result 1
		Opponent Dauds, L (Leandro)				Opponent Matiki, T (Thandeka)
3	4	Tournament Smart Chess Blitz 2025				Tournament Smart Chess Blitz 2025
		date 2025-07-19	rnd 1	type Blitz	result 1	date 2025-07-19	rnd 4	type Blitz	result 1
		Opponent Mohlakane, B (Bohlale)				Opponent Sealoma, T (Tshegofatso)

#	Games	Start				End
1	4	Tournament Mangaung Metro Chess 7-8 February 2025				Tournament Mangaung Metro Chess 9-10 May 2025
		date 2025-02-08	rnd 4	type Standard	result 0.5	date 2025-05-09	rnd 2	type Standard	result 1
		Opponent Laurence, J (Joshua)				Opponent Ademiluyi, A (Adevobape)
2	3	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 1	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Khoele, M (Mohau)				Opponent Bosch, S (Septimus Bowker)
3	3	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-12	rnd 1	type Standard	result 1	date 2024-04-13	rnd 3	type Standard	result 1
		Opponent Moosa, S (Saarah Bibi)				Opponent Bothma, J (Johannes)

#	Games	Start				End
1	5	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 25 January 2025
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2025-01-25	rnd 1	type Rapid	result 1
		Opponent Mofokeng, Z (Ziko)				Opponent Snell, T (Tessa)
2	4	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 2	type Rapid	result 1	date 2023-08-04	rnd 5	type Rapid	result 1
		Opponent Saptoe, R (R-Jay)				Opponent Mabetha, N (Nonhle)
3	2	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 10 February 2024
		date 2024-02-10	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 0.5
		Opponent Moosa, S (Saarah Bibi)				Opponent Herbst, W (Wilhelm)

#	Games	Start				End
1	6	Tournament Balans Blitz Chess 2022				Tournament Smart Chess Blitz 2025
		date 2022-08-13	rnd 4	type Blitz	result 1	date 2025-07-19	rnd 4	type Blitz	result 1
		Opponent De Wet, A (Aiten-Jaun)				Opponent Sealoma, T (Tshegofatso)
2	1	Tournament Balans Blitz Chess 2022				Tournament Balans Blitz Chess 2022
		date 2022-08-13	rnd 1	type Blitz	result 1	date 2022-08-13	rnd 1	type Blitz	result 1
		Opponent Mcpherson, L (Lilly)				Opponent Mcpherson, L (Lilly)

#	Games	Start				End
1	7	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-04-13	rnd 3	type Standard	result 1
		Opponent Mofokeng, Z (Ziko)				Opponent Bothma, J (Johannes)
2	4	Tournament Smart Chess Blitz 2025				Tournament Smart Chess Blitz 2025
		date 2025-07-19	rnd 1	type Blitz	result 1	date 2025-07-19	rnd 4	type Blitz	result 1
		Opponent Mohlakane, B (Bohlale)				Opponent Sealoma, T (Tshegofatso)
3	4	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 2	type Rapid	result 1	date 2023-08-04	rnd 5	type Rapid	result 1
		Opponent Saptoe, R (R-Jay)				Opponent Mabetha, N (Nonhle)

#	Games	Start				End
1	3	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 1	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Khoele, M (Mohau)				Opponent Bosch, S (Septimus Bowker)
2	3	Tournament Mangaung Metro Chess 7-8 February 2025				Tournament Mangaung Metro Chess 9-10 May 2025
		date 2025-02-08	rnd 5	type Standard	result 1	date 2025-05-09	rnd 2	type Standard	result 1
		Opponent De Gouveia, O (Oriana)				Opponent Ademiluyi, A (Adevobape)
3	3	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-12	rnd 1	type Standard	result 1	date 2024-04-13	rnd 3	type Standard	result 1
		Opponent Moosa, S (Saarah Bibi)				Opponent Bothma, J (Johannes)

#	Games	Start				End
1	5	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 25 January 2025
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2025-01-25	rnd 1	type Rapid	result 1
		Opponent Mofokeng, Z (Ziko)				Opponent Snell, T (Tessa)
2	4	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 2	type Rapid	result 1	date 2023-08-04	rnd 5	type Rapid	result 1
		Opponent Saptoe, R (R-Jay)				Opponent Mabetha, N (Nonhle)
3	1	Tournament Mangaung Metro Chess 25 January 2025				Tournament Mangaung Metro Chess 25 January 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-01-25	rnd 5	type Rapid	result 1
		Opponent Du Toit, C (Calem)				Opponent Du Toit, C (Calem)

#	Games	Start				End
1	6	Tournament Balans Blitz Chess 2022				Tournament Smart Chess Blitz 2025
		date 2022-08-13	rnd 4	type Blitz	result 1	date 2025-07-19	rnd 4	type Blitz	result 1
		Opponent De Wet, A (Aiten-Jaun)				Opponent Sealoma, T (Tshegofatso)
2	1	Tournament Balans Blitz Chess 2022				Tournament Balans Blitz Chess 2022
		date 2022-08-13	rnd 1	type Blitz	result 1	date 2022-08-13	rnd 1	type Blitz	result 1
		Opponent Mcpherson, L (Lilly)				Opponent Mcpherson, L (Lilly)

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	Mcpherson ,L (Lilly)	3	3	425	2	2	425	0	0	0	1	1	425
1	Mcpherson ,L (Lilly)	3	1200.1	1625.1	2	1140.1	1625.1	0	0	0	1	1200	1625.1
2	Bosch ,S (Septimus Bowker)	3	3	425	1	1	425	2	2	425	0	0	0
2	Bosch ,S (Septimus Bowker)	3	1179.5	1604.5	1	1217.3	1604.5	2	1221.6	1604.5	0	0	0
3	Sealoma ,T (Tshegofatso)	3	2	141.7	1	0	-425	1	1	425	1	1	425
3	Sealoma ,T (Tshegofatso)	3	1388.8	1530.5	1	1240.4	963.8	1	1311.5	1813.8	1	1200	1813.8
4	Du Toit ,J (Jonaldro)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Du Toit ,J (Jonaldro)	2	1322	897	2	1284.8	897	0	0	0	0	0	0
5	Thakaso ,Z (Ziko)	2	2	425	1	1	425	1	1	425	0	0	0
5	Thakaso ,Z (Ziko)	2	1213.8	1638.8	1	1200	1638.8	1	1288.6	1638.8	0	0	0
6	Moosa ,S (Saarah Bibi)	2	2	425	1	1	425	1	1	425	0	0	0
6	Moosa ,S (Saarah Bibi)	2	1177.9	1602.9	1	1200	1602.9	1	1201.4	1602.9	0	0	0
7	Monaheng ,P (Poloko)	2	2	425	1	1	425	1	1	425	0	0	0
7	Monaheng ,P (Poloko)	2	1285.1	1710.1	1	1242.9	1710.1	1	1199.3	1710.1	0	0	0
8	Herbst ,W (Wilhelm)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
8	Herbst ,W (Wilhelm)	2	1312.8	1100.2	0	0	0	2	1264.4	1100.2	0	0	0
9	Ademiluyi ,A (Adevobape)	1	1	425	1	1	425	0	0	0	0	0	0
9	Ademiluyi ,A (Adevobape)	1	1199.8	1624.8	1	1199.7	1624.8	0	0	0	0	0	0
10	Changara ,A (Alvis Tafadzwa)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Changara ,A (Alvis Tafadzwa)	1	1533.7	1108.7	1	1551.3	1108.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Chen, L (Louis)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms