Chess South Africa Ratings Database

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Personal

Sonti, K (Khwezi)

Chess SA id

1130150799

FIDE id

Date of birth

2013-10-16 (U14)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

100.8

Junior GPX Points

1343.3

Item	Main	Standard	Rapid	Blitz
Rating	1376.6	1371.5	1215.1	1200
Raw rating	1376.6	1371.5	1215.1	1200
Weighted rating	1305.1	1301.8	1211.2	1200
Weighted performance	1331.9	1330	0	0
Floor	945	934.1	715.1	700
K-factor	32	32	36	36
Min/Max rating change allowed	128.9	129.9	162.3	165.8
Highest rating	1445 2025-02-01	1434.1 2025-02-01	1256.6 2024-11-01	1200 2018-10-01
Highest raw rating	1445 2025-02-01	1434.1 2025-02-01	1215.1 2024-11-01	1200 2024-03-01
Highest weighted rating	1445 2018-10-01	1434.1 2018-10-01	1209.8 2025-08-01	1200 2018-10-01
Highest weighted performance	1445 2025-02-01	1434.1 2025-01-01	1256.6 2024-11-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1376.6	1371.5	1215.1	1200
Analysis
Rating	1376.6	1371.5	1215.1	1200
Raw rating	1376.6	1371.5	1215.1	1200
Weighted rating	1305.1	1301.8	1211.2
Weighted performance	1331.9	1330	0
K-factor	32	32	36	36
Floor	945	934.1	715.1	700
Max/Min rating change allowed	128.9	129.9	162.3	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	1376.6	1371.5	1215.1	1200
New weighted rating	1315.5	1311.9	1211.8	1200
New weighted performance	1331.4	1329.5	0	0
Temp new rating	1376.6	1371.5	1215.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1376.6	1371.5	1215.1	1200
New K-factor	32	32	36	36
New floor	945	934.1	715.1	700

Item	Main	Standard	Rapid
	0	0	0
	91	91	0
	49	44	5
	25	25	0
	0	0	0
	0	0	0
History	165	160	5

Games since
	Main 140	Standard 135		Rapid 5		Blitz 0
Gender	Male
Age group	U14
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	2403		319		109
Male	1961		271		93
U14	396		66		20
U14 Male	295		53		14
Standard
	RSA		Province		Region
Overall	2357		315		109
Male	1915		264		92
U14	403		66		21
U14 Male	299		53		15
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	91	46.5	51.1	9.3	1365.3	1374.7
Standard	91	46.5	51.1	9.3	1365.3	1374.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	165	74.5	45.15	-41.2	1320.7	1279.5
Standard	160	71.5	44.69	-45.2	1321.9	1276.7
Rapid	5	3	60	85	1283.5	1368.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1376.6	1371.5	1215.1	1200
2025-09-01	1389.2	1385.3	1215.1	1200
2025-08-01	1384.5	1388.3	1215.1	1200
2025-07-01	1371.2	1372.7	1215.1	1200
2025-06-01	1359	1358.3	1215.1	1200
2025-05-01	1346	1338.1	1215.1	1200
2025-04-01	1379.1	1369.6	1215.1	1200
2025-03-01	1376.3	1364.3	1215.1	1200
2025-02-01	1445	1434.1	1215.1	1200
2025-01-01	1274.7	1265.1	1215.1	1200
2024-12-01	1238.3	1225.5	1215.1	1200
2024-11-01	1238.3	1225.5	1215.1	1200
2024-10-01	1212.7	1225.5	1200	1200
2024-09-01	1174.3	1178.7	1200	1200
2024-08-01	1152.7	1151.5	1200	1200
2024-07-01	1157.7	1155.1	1200	1200
2024-06-01	1157.7	1155.1	1200	1200
2024-08-01	1192.2	1197.1	1200	1200
2024-04-01	1147.7	1159.6	1200	1200
2024-03-01	1143.4	1156.8	1200	1200
2024-02-01	1100.6	1099.6	1200	1200
2024-01-01	1100.6	1099.6	1200	1200
2023-12-01	1100.6	1099.6	1200	1200
2023-11-01	1100.6	1099.6	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	EC Closed 2025 (U14 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
2	FIDE in the Bay 2025 (B)	2025-08-30	2025-08-30	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
3	UCC Mind Over Board 2025 (B)	2025-08-01	2025-08-03	Standard	Nelson Mandela Bay (ENM)	5	5	3.5	Yes	Analysis
4	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U14 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3.5	Yes	Analysis
5	Eastern Cape Inter-Regional Team Chess Championship 2025 (U14)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	5	3	Yes	Analysis
6	NMBCU Closed 2025 (U14)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
7	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
8	NMBCU Trial 4 2025 (U14)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
9	Karen Ashworth 2025 (B)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	2.5	Yes	Analysis
10	NMB 3rd Trials 2025 (U14)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
11	South African Junior Closed Chess Championships 2025 (U12 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3	Yes	Analysis
12	NMB 2nd Trials 2025 (U14)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	5	1.5	Yes	Analysis
13	UCC Strategic Moves 2025 (B)	2025-02-28	2025-03-01	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
14	Pearson High Chess Festival 2025 (C)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
15	NMBCH Trial 1 2025 (U14)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
16	NMBCU vs BCC Derby Chess Invitational 2025 (U12)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (U14 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
2	FIDE in the Bay 2025 (B)	2025-08-30	2025-08-30	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
3	UCC Mind Over Board 2025 (B)	2025-08-01	2025-08-03	Standard	Nelson Mandela Bay (ENM)	5	5	3.5	Yes	Analysis
4	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U14 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3.5	Yes	Analysis
5	Eastern Cape Inter-Regional Team Chess Championship 2025 (U14)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	5	3	Yes	Analysis
6	NMBCU Closed 2025 (U14)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
7	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
8	NMBCU Trial 4 2025 (U14)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
9	Karen Ashworth 2025 (B)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	2.5	Yes	Analysis
10	NMB 3rd Trials 2025 (U14)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
11	South African Junior Closed Chess Championships 2025 (U12 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3	Yes	Analysis
12	NMB 2nd Trials 2025 (U14)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	5	1.5	Yes	Analysis
13	UCC Strategic Moves 2025 (B)	2025-02-28	2025-03-01	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
14	Pearson High Chess Festival 2025 (C)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
15	NMBCH Trial 1 2025 (U14)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
16	NMBCU vs BCC Derby Chess Invitational 2025 (U12)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis
17	Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Premier)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	6	3	Yes	Analysis
18	NMBCU Top Schools 2024 (Senior Primary)	2024-10-12	2024-10-12	Rapid	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
19	NMBCU Closed 2024 (U12)	2024-09-20	2024-09-21	Standard	Nelson Mandela Bay (ENM)	6	5	3	Yes	Analysis
20	NMBCU Trial 5 2024 (U12)	2024-08-16	2024-08-17	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
21	NMBCU Trials 4 2024 (U12)	2024-07-12	2024-07-13	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
22	NMBCU Trial 3 2024 (U12)	2024-05-10	2024-05-11	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
23	NMBCU Trials 2 2024 (U12)	2024-04-12	2024-04-13	Standard	Nelson Mandela Bay (ENM)	6	5	3	Yes	Analysis
24	Madibaz Chess Tournament 2024 (B)	2024-03-01	2024-03-02	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
25	NMBCU Trials 1 2024 (U12)	2024-02-16	2024-02-16	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
26	NMBCU Closed 2023 (U12)	2023-08-11	2023-08-12	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
27	NMBCU Trial 4 2023 (U12)	2023-07-28	2023-07-29	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
28	EP Trials 3 2023 (U12)	2023-05-05	2023-05-06	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
29	NMB 2nd Trials 2023 (U12)	2023-03-24	2023-03-25	Standard	Nelson Mandela Bay (ENM)	6	5	0	Yes	Analysis
30	2023 Pearson Open Chess Tournament (D)	2023-02-24	2023-02-25	Standard	Nelson Mandela Bay (ENM)	5	4	0	Yes	Analysis

#	Games	Start				End
1	7	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament NMBCH Trial 1 2025
		date 2024-12-19	rnd 7	type Standard	result 1	date 2025-02-14	rnd 1	type Standard	result 1
		Opponent Chinyamurindi, A (Anochengeta)				Opponent Bownes, F (Fabian)
2	6	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament UCC Mind Over Board 2025
		date 2025-07-11	rnd 2	type Standard	result 0.5	date 2025-08-01	rnd 1	type Standard	result 1
		Opponent Mdolomba, T (Thatho)				Opponent Andrews, T (Timothy)
3	5	Tournament UCC Mind Over Board 2025				Tournament FIDE in the Bay 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-30	rnd 2	type Standard	result 1
		Opponent Greeff, N (Nathan)				Opponent Janse van Rensburg, Z (Zander)

#	Games	Start				End
1	7	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament NMBCH Trial 1 2025
		date 2024-12-19	rnd 7	type Standard	result 1	date 2025-02-14	rnd 1	type Standard	result 1
		Opponent Chinyamurindi, A (Anochengeta)				Opponent Bownes, F (Fabian)
2	6	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament UCC Mind Over Board 2025
		date 2025-07-11	rnd 2	type Standard	result 0.5	date 2025-08-01	rnd 1	type Standard	result 1
		Opponent Mdolomba, T (Thatho)				Opponent Andrews, T (Timothy)
3	5	Tournament UCC Mind Over Board 2025				Tournament FIDE in the Bay 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-30	rnd 2	type Standard	result 1
		Opponent Greeff, N (Nathan)				Opponent Janse van Rensburg, Z (Zander)

#	Games	Start				End
1	3	Tournament NMBCU Top Schools 2024				Tournament NMBCU Top Schools 2024
		date 2024-10-12	rnd 2	type Rapid	result 1	date 2024-10-12	rnd 4	type Rapid	result 1
		Opponent Schler, J (Jannei)				Opponent Allies, M (Monteago)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2024-12-19	rnd 7	type Standard	result 1	date 2025-01-11	rnd 3	type Standard	result 1
		Opponent Chinyamurindi, A (Anochengeta)				Opponent Jagers, N (Noah)
2	3	Tournament UCC Mind Over Board 2025				Tournament FIDE in the Bay 2025
		date 2025-08-03	rnd 5	type Standard	result 1	date 2025-08-30	rnd 2	type Standard	result 1
		Opponent Celliers, M (Morgan)				Opponent Janse van Rensburg, Z (Zander)
3	3	Tournament NMBCU Closed 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-06-14	rnd 6	type Standard	result 1	date 2025-07-10	rnd 2	type Standard	result 1
		Opponent Bosch, R (Rayhaan)				Opponent Sigungqa, S (Siphelele)

#	Games	Start				End
1	4	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2024-12-19	rnd 7	type Standard	result 1	date 2025-01-11	rnd 3	type Standard	result 1
		Opponent Chinyamurindi, A (Anochengeta)				Opponent Jagers, N (Noah)
2	3	Tournament UCC Mind Over Board 2025				Tournament FIDE in the Bay 2025
		date 2025-08-03	rnd 5	type Standard	result 1	date 2025-08-30	rnd 2	type Standard	result 1
		Opponent Celliers, M (Morgan)				Opponent Janse van Rensburg, Z (Zander)
3	3	Tournament NMBCU Closed 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-06-14	rnd 6	type Standard	result 1	date 2025-07-10	rnd 2	type Standard	result 1
		Opponent Bosch, R (Rayhaan)				Opponent Sigungqa, S (Siphelele)

#	Games	Start				End
1	3	Tournament NMBCU Top Schools 2024				Tournament NMBCU Top Schools 2024
		date 2024-10-12	rnd 2	type Rapid	result 1	date 2024-10-12	rnd 4	type Rapid	result 1
		Opponent Schler, J (Jannei)				Opponent Allies, M (Monteago)

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	Bosch ,R (Rayhaan)	5	5	425	5	5	425	0	0	0	0	0	0
1	Bosch ,R (Rayhaan)	5	1204.8	1629.8	5	1212.5	1629.8	0	0	0	0	0	0
2	Du Toit ,H (Hayden)	5	3	85	5	3	85	0	0	0	0	0	0
2	Du Toit ,H (Hayden)	5	1173.1	1258.1	5	1170.3	1258.1	0	0	0	0	0	0
3	Schreinders ,M (Mia)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
3	Schreinders ,M (Mia)	4	1281.8	1388	4	1289.2	1388	0	0	0	0	0	0
4	Prinsloo ,L (Liam)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
4	Prinsloo ,L (Liam)	4	1331.4	1118.9	4	1319.8	1118.9	0	0	0	0	0	0
5	Mabutho ,S (Simingayo)	4	0	-425	4	0	-425	0	0	0	0	0	0
5	Mabutho ,S (Simingayo)	4	1254.5	829.5	4	1266.2	829.5	0	0	0	0	0	0
6	Adams ,C (Ciara)	4	0	-425	4	0	-425	0	0	0	0	0	0
6	Adams ,C (Ciara)	4	1309.2	884.2	4	1314.2	884.2	0	0	0	0	0	0
7	Nell ,C (Chelsea Jane)	4	0	-425	4	0	-425	0	0	0	0	0	0
7	Nell ,C (Chelsea Jane)	4	1499.6	1074.6	4	1491.9	1074.6	0	0	0	0	0	0
8	Mclachlan ,G (Geoffrey)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
8	Mclachlan ,G (Geoffrey)	4	1486.7	1274.2	4	1488.8	1274.2	0	0	0	0	0	0
9	Van Huyssteen ,N (Nathan)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
9	Van Huyssteen ,N (Nathan)	4	1184	1396.5	4	1192.8	1396.5	0	0	0	0	0	0
10	Swartz ,J (Jane)	4	2	0	4	2	0	0	0	0	0	0	0
10	Swartz ,J (Jane)	4	1219.1	1219.1	4	1227.2	1219.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Sonti, K (Khwezi)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms