Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lin, J (Junming)

Chess SA id

1160150117

FIDE id

Date of birth

2016-04-23 (U10)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

86.3

Junior GPX Points

1384.9

Item	Main	Standard	Rapid	Blitz
Rating	1583.4	1564.9	1486.5	1200
Raw rating	1583.4	1564.9	1486.5	1200
Weighted rating	1478.1	1470.6	1400.8	1200
Weighted performance	1551	1523.8	1480.1	0
Floor	1085.8	1064.9	986.5	700
K-factor	32	32	32	36
Min/Max rating change allowed	96	98.6	110.2	165.8
Highest rating	1585.8 2025-09-30	1564.9 2025-09-01	1497.3 2025-09-30	1200 2018-10-01
Highest raw rating	1585.8 2025-09-30	1564.9 2025-09-01	1486.5 2025-09-30	1200 2024-03-01
Highest weighted rating	1478.1 2025-11-01	1470.6 2025-11-01	1389.4 2025-09-30	1200 2018-10-01
Highest weighted performance	1562.9 2025-09-30	1540.1 2025-09-01	1497.3 2025-09-30	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1583.4	1564.9	1486.5	1200
Analysis
Rating	1583.4	1564.9	1486.5	1200
Raw rating	1583.4	1564.9	1486.5	1200
Weighted rating	1478.1	1470.6	1400.8
Weighted performance	1551	1523.8	1480.1
K-factor	32	32	32	36
Floor	1085.8	1064.9	986.5	700
Max/Min rating change allowed	96	98.6	110.2	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	1583.4	1564.9	1486.5	1200
New weighted rating	1491.4	1483	1411	1200
New weighted performance	1541.8	1514.6	1470.9	0
Temp new rating	1583.4	1564.9	1486.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1583.4	1564.9	1486.5	1200
New K-factor	32	32	32	36
New floor	1085.8	1064.9	986.5	700

Item	Main	Standard	Rapid
	0	0	0
	69	52	17
	99	69	30
	23	0	23
	0	0	0
	0	0	0
History	191	121	70

Games since
	Main 180	Standard 121		Rapid 59		Blitz 0
Gender	Male
Age group	U10
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	727		221		137
Male	647		195		121
U10	28		5		2
U10 Male	24		5		2
Standard
	RSA		Province		Region
Overall	787		213		137
Male	693		186		121
U10	30		4		3
U10 Male	25		3		2
Rapid
	RSA		Province		Region
Overall	261		125		63
Male	238		114		61
U10	7		4		3
U10 Male	7		4		3
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	69	53	76.81	227.9	1350	1577.9
Standard	52	39.5	75.96	220.7	1350.2	1570.8
Rapid	17	13.5	79.41	250	1349.7	1599.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	191	127.5	66.75	142.4	1296.9	1439.3
Standard	121	81.5	67.36	147.5	1322.9	1470.4
Rapid	70	46	65.71	133.6	1251.9	1385.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1583.4	1564.9	1486.5	1200
2025-09-30	1585.8	1564.9	1486.5	1200
2025-09-01	1571.8	1564.9	1449.7	1200
2025-08-01	1551.1	1544	1423.8	1200
2025-07-01	1551.1	1544	1423.8	1200
2025-06-01	1551.1	1544	1423.8	1200
2025-05-01	1547.4	1552.2	1423.8	1200
2025-04-01	1513.5	1523.9	1423.8	1200
2025-03-01	1433.7	1397.5	1423.8	1200
2025-02-01	1345.2	1328.6	1376	1200
2025-01-01	1345.2	1328	1376	1200
2024-12-01	1424.7	1417.3	1376	1200
2024-11-01	1424.7	1417.3	1376	1200
2024-10-01	1426.9	1427.2	1376	1200
2024-09-01	1426.6	1447.4	1322.7	1200
2024-08-01	1426.6	1447.4	1322.7	1200
2024-07-01	1392.3	1405.7	1322.7	1200
2024-09-01	1371.4	1352.3	1322.7	1200
2024-05-01	1270.4	1290	1203	1200
2024-04-01	1305.3	1290	1254.5	1200
2024-03-01	1286.8	1276	1254.5	1200
2024-02-01	1220.2	1200	1252	1200
2024-01-01	1220.2	1200	1252	1200
2023-12-01	1220.2	1200	1252	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	Grant East Annual Primary School Invitational Chess Tournament 2025 (U9 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
2	Rhenish Primary 2025 (U10)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
3	Curro Chess Open Rapid 2025 (U10)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
4	CT Metro District East Top Schools Chess 2025 (U9)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
5	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5.5	Yes	Analysis
7	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Steinitz Festival 2025 (U10)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	0	0	No	Analysis
9	Western Cape Closed 2025 (U10)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	6	Yes	Analysis
10	CT Metro Schools Individual Closed 2025 (U9 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
11	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
12	De Hoop Primary Schools Teams Play-offs 2025 (U9)	2025-02-08	2025-02-08	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
13	CT Metro District East Schools Chess Individuals Trials 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Grant East Annual Primary School Invitational Chess Tournament 2025 (U9 Boys)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
2	Rhenish Primary 2025 (U10)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
3	Curro Chess Open Rapid 2025 (U10)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
4	CT Metro District East Top Schools Chess 2025 (U9)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
5	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5.5	Yes	Analysis
7	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Steinitz Festival 2025 (U10)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	0	0	No	Analysis
9	Western Cape Closed 2025 (U10)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	6	Yes	Analysis
10	CT Metro Schools Individual Closed 2025 (U9 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
11	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
12	De Hoop Primary Schools Teams Play-offs 2025 (U9)	2025-02-08	2025-02-08	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
13	CT Metro District East Schools Chess Individuals Trials 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
14	Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	4	Yes	Analysis
15	2nd Strategize To Win Round-Robin Tournament ACL 2024 (D)	2024-12-07	2024-12-07	Standard	Cape Town (WCT)	5	5	0	Yes	Analysis
16	Chess Elevation Series - October 2024 (Level 2)	2024-10-25	2024-10-26	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
17	De Hoop Chess Championship Tournament 2024 (U7+U8)	2024-10-12	2024-10-12	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
18	Grant East Annual Primary School Invitational Chess Tournament 2024 (U9)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	4.5	Yes	Analysis
19	Chess Elevation Series -September 2024 (Level 2)	2024-09-20	2024-09-21	Standard	Cape Town (WCT)	5	4	2	Yes	Analysis
20	Kingsway Chess Open 2024 (U8)	2024-09-14	2024-09-14	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
21	Western Cape Top Schools Championship 2024 (U9 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
22	CT Metro District East Top Schools Chess 2024 (U9 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
23	Cape Town Chess Federation Closed Chess Championships 2024 (U10)	2024-06-15	2024-06-15	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
24	PNPS Chess Challengers 2024 (U10)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
25	Steinitz Chess Festival 2024 (U10)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
26	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
27	Hermanus Chess Club Open 2024 (Intermediate)	2024-04-20	2024-04-20	Rapid	Overberg (WOS)	7	7	2	Yes	Analysis
28	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
29	De Hoop Teams Play Offs 2023 (U9 Mixed)	2024-02-10	2024-02-10	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
30	CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
31	Cape of Good Hope Open Chess Tournament 2024 (U10)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
32	Kraaifontein Open 2023 (U8)	2023-12-09	2023-12-09	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
33	Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
34	De Hoop Chess Championship 2023 (U7)	2023-10-14	2023-10-14	Rapid	Cape Town (WCT)	7	7	6	Yes	Analysis
35	GPCA Rapid 2023 (U10)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	0	0	No	Analysis
36	De Hoop Teams Play Offs 2023 (U9 Mixed)	2023-02-11	2023-02-11	Rapid	Cape Town (WCT)	5	4	0	Yes	Analysis

#	Games	Start				End
1	11	Tournament Western Cape Schools Individual Championship 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-05-18	rnd 5	type Standard	result 0.5	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Buss, B (Broden)
2	9	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Carstens, J (Jason)				Opponent Spondo, M (Marshallino)
3	9	Tournament Chess Elevation Series -September 2024				Tournament De Hoop Chess Championship Tournament 2024
		date 2024-09-21	rnd 5	type Standard	result 1	date 2024-10-12	rnd 3	type Standard	result 1
		Opponent Waldeck, A (Aaron)				Opponent Visagie, W (Wilhelm)

#	Games	Start				End
1	9	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Carstens, J (Jason)				Opponent Spondo, M (Marshallino)
2	9	Tournament Chess Elevation Series -September 2024				Tournament De Hoop Chess Championship Tournament 2024
		date 2024-09-21	rnd 5	type Standard	result 1	date 2024-10-12	rnd 3	type Standard	result 1
		Opponent Waldeck, A (Aaron)				Opponent Visagie, W (Wilhelm)
3	6	Tournament Western Cape Schools Individual Championship 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-05-18	rnd 5	type Standard	result 0.5	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Dirks, G (Gia)

#	Games	Start				End
1	6	Tournament Kingsway Chess Open 2024				Tournament Cape of Good Hope Open 2025
		date 2024-09-14	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Rasekgololo, B (Bandile)				Opponent Johnson, B (Brian)
2	5	Tournament Rhenish Primary 2025				Tournament Rhenish Primary 2025
		date 2025-09-20	rnd 1	type Rapid	result 1	date 2025-09-20	rnd 5	type Rapid	result 1
		Opponent Masikane, L (Luthando)				Opponent Koen, G (Gustav)
3	5	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Kumar, D (Devaansh)				Opponent Buss, B (Broden)

No games found.

#	Games	Start				End

#	Games	Start				End
1	10	Tournament Western Cape Schools Individual Championship 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-05-18	rnd 6	type Standard	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Poole, C (Cayden)				Opponent Buss, B (Broden)
2	9	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Carstens, J (Jason)				Opponent Spondo, M (Marshallino)
3	5	Tournament South African Junior Closed Chess Championships 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-04	rnd 8	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Brancato, S (Sebastian)				Opponent Balogun, S (Samuel)

#	Games	Start				End
1	9	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Carstens, J (Jason)				Opponent Spondo, M (Marshallino)
2	5	Tournament Western Cape Schools Individual Championship 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-05-18	rnd 6	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Poole, C (Cayden)				Opponent Dirks, G (Gia)
3	5	Tournament South African Junior Closed Chess Championships 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-04	rnd 8	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Brancato, S (Sebastian)				Opponent Balogun, S (Samuel)

#	Games	Start				End
1	6	Tournament Kingsway Chess Open 2024				Tournament Cape of Good Hope Open 2025
		date 2024-09-14	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Rasekgololo, B (Bandile)				Opponent Johnson, B (Brian)
2	5	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Kumar, D (Devaansh)				Opponent Buss, B (Broden)
3	5	Tournament De Hoop Chess Championship 2023				Tournament De Hoop Chess Championship 2023
		date 2023-10-14	rnd 1	type Rapid	result 1	date 2023-10-14	rnd 5	type Rapid	result 1
		Opponent Arendse, M (Meekah)				Opponent Cleophas, E (Ethan)

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	Kruger ,J (Josua Baruch)	6	3.5	70.8	5	3	85	1	0.5	0	0	0	0
1	Kruger ,J (Josua Baruch)	6	1536.5	1607.3	5	1512.8	1621.5	1	1522.8	1536.5	0	0	0
2	Lourens ,S (Simeon Juda)	5	1.5	-170	4	1.5	-106.2	1	0	-425	0	0	0
2	Lourens ,S (Simeon Juda)	5	1325.3	1155.3	4	1347.5	1219	1	1200	900.3	0	0	0
3	Marais ,A (Alexander)	4	1	-212.5	3	1	-141.7	1	0	-425	0	0	0
3	Marais ,A (Alexander)	4	1428.2	1215.8	3	1389.8	1286.6	1	1360.4	1003.2	0	0	0
4	Akemdien ,A (Alex)	4	3	212.5	3	2	141.7	1	1	425	0	0	0
4	Akemdien ,A (Alex)	4	1396.2	1608.7	3	1381.1	1537.9	1	1409	1821.2	0	0	0
5	Klopper ,E (Elbe)	4	3	212.5	2	2	425	2	1	0	0	0	0
5	Klopper ,E (Elbe)	4	1276.7	1489.2	2	1304.8	1701.7	2	1316.1	1276.7	0	0	0
6	Stern ,M (Mason)	3	0	-425	2	0	-425	1	0	-425	0	0	0
6	Stern ,M (Mason)	3	1430.7	1005.7	2	1370.8	1005.7	1	1502.1	1005.7	0	0	0
7	Blom ,L (Luca)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
7	Blom ,L (Luca)	3	1410	1693.3	2	1480.9	1622.5	1	1371.1	1835	0	0	0
8	Van Der Merwe ,L (Lara)	3	3	425	2	2	425	1	1	425	0	0	0
8	Van Der Merwe ,L (Lara)	3	1222.2	1647.2	2	1204.7	1647.2	1	1200	1647.2	0	0	0
9	Chapela ,K (Kai)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
9	Chapela ,K (Kai)	3	1308.3	1166.6	2	1352.8	1308.3	1	1236	883.3	0	0	0
10	Kirthan ,V (Venya)	3	2	141.7	0	0	0	3	2	141.7	0	0	0
10	Kirthan ,V (Venya)	3	1220.8	1362.5	0	0	0	3	1160.6	1362.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Lin, J (Junming)

Ratings

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Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms