Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kingon, J (Jonah)

Chess SA id

1110109276

FIDE id

Date of birth

2011-10-23 (U16)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-04

Personal details last changed

2025-01-18

Junior GPX Games

63.7

Junior GPX Points

1334.8

Item	Main	Standard	Rapid	Blitz
Rating	1439.4	1436	1242.1	1199.6
Raw rating	1426.1	1436	1242.1	1199.6
Weighted rating	1331.6	1351.8	1203.4	1199.6
Weighted performance	1439.4	1435.5	0	0
Floor	926.1	943	742.1	700
K-factor	32	32	36	36
Min/Max rating change allowed	120.1	118.5	156.2	165.9
Highest rating	1457.1 2025-09-30	1451.8 2025-09-01	1242.1 2025-11-01	1200 2018-10-01
Highest raw rating	1426.1 2025-11-01	1443 2025-03-01	1242.1 2025-11-01	1200 2024-02-01
Highest weighted rating	1331.6 2025-11-01	1339.7 2025-09-30	1203.4 2025-11-01	1200 2018-10-01
Highest weighted performance	1457.1 2025-09-30	1451.8 2025-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-8.6	0	0	0
New rating	1430.8	1436	1242.1	1199.6
Analysis
Rating	1439.4	1436	1242.1	1199.6
Raw rating	1426.1	1436	1242.1	1199.6
Weighted rating	1331.6	1351.8	1203.4
Weighted performance	1439.4	1435.5	0
K-factor	32	32	36	36
Floor	926.1	943	742.1	700
Max/Min rating change allowed	120.1	118.5	156.2	165.9
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	1426.1	1436	1242.1	1199.6
New weighted rating	1343.1	1362.9	1206.6	1199.6
New weighted performance	1430.8	1426.8	0	0
Temp new rating	1430.8	1436	1242.1	1199.6
Temp new rating +/-	-8.6	0	0	0
Final new rating +/-	-8.6	0	0	0
New rating	1430.8	1436	1242.1	1199.6
New K-factor	32	32	36	36
New floor	926.1	943	742.1	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	66	50	7	9
	28	28	0	0
	5	5	0	0
	0	0	0	0
	0	0	0	0
History	104	88	7	9

Games since
	Main 94	Standard 78		Rapid 7		Blitz 9
Gender	Male
Age group	U16
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	1789		214		77
Male	1487		183		64
U16	246		36		9
U16 Male	194		29		5
Standard
	RSA		Province		Region
Overall	1723		215		80
Male	1425		182		67
U16	241		34		8
U16 Male	192		28		5
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	66	41	62.12	103	1316.7	1419.7
Standard	50	33.5	67	144.5	1292.7	1437.2
Rapid	7	4	57.14	60.7	1424.9	1485.6
Blitz	9	3.5	38.89	-94.4	1365.7	1271.3
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	104	60	57.69	65.4	1298.5	1363.9
Standard	88	52.5	59.66	82.1	1281.6	1363.7
Rapid	7	4	57.14	60.7	1424.9	1485.6
Blitz	9	3.5	38.89	-94.4	1365.7	1271.3

Date	Main	Standard	Rapid	Blitz
2025-11-01	1426.1	1436	1242.1	1199.6
2025-09-30	1421.1	1436	1200	1199.6
2025-09-01	1424.7	1440.2	1200	1199.6
2025-08-01	1374.9	1396.8	1200	1199.6
2025-07-01	1374.9	1396.8	1200	1199.6
2025-06-01	1374.9	1396.8	1200	1199.6
2025-05-01	1373	1406.3	1200	1199.6
2025-04-01	1380.6	1439.8	1200	1199.6
2025-03-01	1373.8	1443	1200	1199.4
2025-02-01	1351.6	1390.3	1200	1196.2
2025-01-01	1288.5	1306.9	1200	1200
2024-12-01	1229.9	1237.4	1200	1200
2024-11-01	1229.9	1237.4	1200	1200
2024-10-01	1202.1	1202.5	1200	1200
2024-09-01	1202.1	1202.5	1200	1200
2024-08-01	1195.5	1194.2	1200	1200
2024-07-01	1195.5	1194.2	1200	1200
2024-09-01	1252.3	1264	1200	1200
2024-05-01	1229.9	1239.2	1200	1200
2024-04-01	1229.9	1239.2	1200	1200
2024-03-01	1164.5	1154.4	1200	1200
2024-02-01	1164.5	1154.4	1200	1200
2024-01-01	1164.5	1154.4	1200	1200
2023-12-01	1164.5	1154.4	1200	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	BC Open 2025 (U16+U18)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	4	Yes	Analysis
2	EC Closed 2025 (U16 Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
3	Buffalo City Chess Junior Closed 2025 (U16 Open)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	4	3.5	Yes	Analysis
4	3rd Chess Vikings Open Championship 2025 (B)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
5	2025 Buffalo City Chess Trials 3 (U16)	2025-05-10	2025-05-10	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
6	EC Open 2025 (U16-U20 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	3.5	Yes	Analysis
7	2025 Buffalo City Chess Trials 2 (U16)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
8	2025 Buffalo City Chess Trials 1 (U16)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
9	Vikings Classical March 2025 (B)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	4	2.5	Yes	Analysis
10	Grey College Team Championship 2025 (B)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	4	3	Yes	Analysis
11	NMBCU vs BCC Derby Chess Invitational 2025 (Open B)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis
12	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	9	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	BC Open 2025 (U16+U18)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	4	Yes	Analysis
2	EC Closed 2025 (U16 Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
3	Buffalo City Chess Junior Closed 2025 (U16 Open)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	4	3.5	Yes	Analysis
4	3rd Chess Vikings Open Championship 2025 (B)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
5	2025 Buffalo City Chess Trials 3 (U16)	2025-05-10	2025-05-10	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
6	EC Open 2025 (U16-U20 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	3.5	Yes	Analysis
7	2025 Buffalo City Chess Trials 2 (U16)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
8	2025 Buffalo City Chess Trials 1 (U16)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
9	Vikings Classical March 2025 (B)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	4	2.5	Yes	Analysis
10	Grey College Team Championship 2025 (B)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	4	3	Yes	Analysis
11	NMBCU vs BCC Derby Chess Invitational 2025 (Open B)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis
12	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	9	3.5	Yes	Analysis
13	EL Junior Closed 2024 (U14)	2024-11-23	2024-11-23	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
14	East London Open 2024 (B)	2024-10-05	2024-10-05	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
15	5th BC Trails 2024 (U14A)	2024-08-17	2024-08-17	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
16	4th BC Trials 2024 (U14A)	2024-06-08	2024-06-08	Standard	Buffalo City (EBC)	5	3	0	Yes	Analysis
17	3rd BC Trials 2024 (U14A)	2024-05-11	2024-05-11	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
18	2nd BC Trials 2024 (U14A)	2024-03-09	2024-03-09	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
19	BC Chess Trials 1 of 5 2023 (U14A)	2023-04-22	2023-04-22	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
20	Buffalo City Trials 1 of 5 2019 (U10B)	2019-02-09	2019-02-09	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis

#	Games	Start				End
1	8	Tournament 2025 Buffalo City Chess Trials 3				Tournament 3rd Chess Vikings Open Championship 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 0.5
		Opponent Mdikane, O (Olwethu)				Opponent Zumani, L (Liyanda)
2	7	Tournament EL Junior Closed 2024				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2024-11-23	rnd 4	type Standard	result 1	date 2025-01-11	rnd 5	type Standard	result 1
		Opponent Gower, D (Daniel)				Opponent Grobler, M (Mia)
3	6	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Siswana, A (Andiphile)				Opponent Brown, N (Nathan)

#	Games	Start				End
1	10	Tournament EL Junior Closed 2024				Tournament Grey College Team Championship 2025
		date 2024-11-23	rnd 4	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Gower, D (Daniel)				Opponent Maposa, M (Menelik)
2	8	Tournament 2025 Buffalo City Chess Trials 3				Tournament 3rd Chess Vikings Open Championship 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 0.5
		Opponent Mdikane, O (Olwethu)				Opponent Zumani, L (Liyanda)
3	6	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Siswana, A (Andiphile)				Opponent Brown, N (Nathan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 4	type Blitz	result 1	date 2025-01-12	rnd 6	type Blitz	result 1
		Opponent Billett, L (Lauren)				Opponent Sihewula, A (Achuma)
2	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 8	type Blitz	result 0.5	date 2025-01-12	rnd 8	type Blitz	result 0.5
		Opponent Mayo, E (Esinaye)				Opponent Mayo, E (Esinaye)

#	Games	Start				End
1	7	Tournament 2025 Buffalo City Chess Trials 3				Tournament 3rd Chess Vikings Open Championship 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Mdikane, O (Olwethu)				Opponent Dickinson, E (Elijah)
2	5	Tournament EL Junior Closed 2024				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2024-11-23	rnd 4	type Standard	result 1	date 2025-01-11	rnd 3	type Standard	result 1
		Opponent Gower, D (Daniel)				Opponent Swartz, J (Jane)
3	4	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Mjanyana, K (Kazimla)				Opponent Brown, N (Nathan)

#	Games	Start				End
1	7	Tournament 2025 Buffalo City Chess Trials 3				Tournament 3rd Chess Vikings Open Championship 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Mdikane, O (Olwethu)				Opponent Dickinson, E (Elijah)
2	5	Tournament EL Junior Closed 2024				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2024-11-23	rnd 4	type Standard	result 1	date 2025-01-11	rnd 3	type Standard	result 1
		Opponent Gower, D (Daniel)				Opponent Swartz, J (Jane)
3	4	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 1
		Opponent Mjanyana, K (Kazimla)				Opponent Brown, N (Nathan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 4	type Blitz	result 1	date 2025-01-12	rnd 6	type Blitz	result 1
		Opponent Billett, L (Lauren)				Opponent Sihewula, A (Achuma)

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	Dickinson ,E (Elijah)	5	4.5	340	5	4.5	340	0	0	0	0	0	0
1	Dickinson ,E (Elijah)	5	1249.3	1589.3	5	1257.5	1589.3	0	0	0	0	0	0
2	Zumani ,L (Liyanda)	4	2	0	4	2	0	0	0	0	0	0	0
2	Zumani ,L (Liyanda)	4	1317	1317	4	1304	1317	0	0	0	0	0	0
3	Sigwela ,A (Ayama)	4	4	425	3	3	425	1	1	425	0	0	0
3	Sigwela ,A (Ayama)	4	1208.9	1633.9	3	1211.7	1633.9	1	1200	1633.9	0	0	0
4	Mafukidze ,A (Arnold)	3	3	425	3	3	425	0	0	0	0	0	0
4	Mafukidze ,A (Arnold)	3	1316	1741	3	1309.1	1741	0	0	0	0	0	0
5	Petzer ,J (Jayden)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Petzer ,J (Jayden)	3	1366.2	1224.5	3	1369	1224.5	0	0	0	0	0	0
6	Mjanyana ,K (Kazimla)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Mjanyana ,K (Kazimla)	3	1339	1480.6	3	1313.7	1480.6	0	0	0	0	0	0
7	Siswana ,A (Andiphile)	2	1	0	2	1	0	0	0	0	0	0	0
7	Siswana ,A (Andiphile)	2	1228.9	1228.9	2	1209.3	1228.9	0	0	0	0	0	0
8	Ngewu ,E (Elowo)	2	2	425	2	2	425	0	0	0	0	0	0
8	Ngewu ,E (Elowo)	2	1312.1	1737.1	2	1315.5	1737.1	0	0	0	0	0	0
9	Harman ,R (Ryan)	2	2	425	2	2	425	0	0	0	0	0	0
9	Harman ,R (Ryan)	2	1302.2	1727.2	2	1307.2	1727.2	0	0	0	0	0	0
10	Canham ,E (Ethan)	2	1	0	2	1	0	0	0	0	0	0	0
10	Canham ,E (Ethan)	2	1332.3	1332.3	2	1323.4	1332.3	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

Kingon, J (Jonah)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms