Chess South Africa Ratings Database

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Personal

Coetzee, N (Niki)

Chess SA id

2180302971

FIDE id

Date of birth

2018-03-15 (U8)

Gender

Female

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

61.8

Junior GPX Points

1138.3

Item	Main	Standard	Rapid	Blitz
Rating	1278.9	1276.9	1231	1198.9
Raw rating	1265	1262.5	1231	1198.9
Weighted rating	1179.7	1169.3	1204.3	1198.7
Weighted performance	1278.9	1276.9	0	0
Floor	765	762.5	731	700
K-factor	36	36	36	36
Min/Max rating change allowed	151.1	151.7	158.6	166.1
Highest rating	1278.9 2025-11-01	1276.9 2025-11-01	1231 2025-11-01	1200 2024-05-01
Highest raw rating	1265 2025-11-01	1262.5 2025-11-01	1231 2025-11-01	1200 2024-05-01
Highest weighted rating	1220.4 2024-05-01	1219 2024-05-01	1204.3 2025-11-01	1200 2024-05-01
Highest weighted performance	1278.9 2025-11-01	1276.9 2025-11-01	1219.2 2024-04-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-7.5	-7.6	0	0
New rating	1271.4	1269.4	1231	1198.9
Analysis
Rating	1278.9	1276.9	1231	1198.9
Raw rating	1265	1262.5	1231	1198.9
Weighted rating	1179.7	1169.3	1204.3
Weighted performance	1278.9	1276.9	0
K-factor	36	36	36	36
Floor	765	762.5	731	700
Max/Min rating change allowed	151.1	151.7	158.6	166.1
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	1265	1262.5	1231	1198.9
New weighted rating	1186.8	1177.1	1206.5	1198.7
New weighted performance	1271.4	1269.4	0	0
Temp new rating	1271.4	1269.4	1231	1198.9
Temp new rating +/-	-7.5	-7.6	0	0
Final new rating +/-	-7.5	-7.6	0	0
New rating	1271.4	1269.4	1231	1198.9
New K-factor	36	36	36	36
New floor	765	762.5	731	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	74	53	13	8
	32	26	6	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	106	79	19	8

Games since
	Main 106	Standard 79		Rapid 19		Blitz 8
Gender	Female
Age group	U8
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	3464		431		140
Female	739		76		26
U8	50		4		4
U8 Female	17		1		1
Standard
	RSA		Province		Region
Overall	3399		442		149
Female	720		78		28
U8	49		4		4
U8 Female	17		1		1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-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	74	32	43.24	-57.4	1248.5	1191.1
Standard	53	25	47.17	-24.1	1258.3	1234.2
Rapid	13	7	53.85	32.7	1227.3	1260
Blitz	8	0	0	-425	1218.4	793.4
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	106	42.5	40.09	-84.2	1239	1154.8
Standard	79	32.5	41.14	-75.3	1243.6	1168.3
Rapid	19	10	52.63	22.4	1228.8	1251.1
Blitz	8	0	0	-425	1218.4	793.4

Date	Main	Standard	Rapid	Blitz
2025-11-01	1265	1262.5	1231	1198.9
2025-09-30	1252.3	1256	1201.9	1198.9
2025-09-01	1210	1210.6	1201.9	1198.9
2025-08-01	1177.2	1169.7	1201.9	1198.9
2025-07-01	1177.2	1169.7	1201.8	1198.9
2025-06-01	1194	1190	1201.8	1198.9
2025-05-01	1220.4	1219	1201.8	1198.9
2025-04-01	1167.2	1156	1201.8	1198.9
2025-03-01	1157.6	1142.2	1201.8	1198.2
2025-02-01	1152.7	1139.6	1202.4	1188.5
2025-01-01	1091.1	1063.6	1202.4	1200
2024-12-01	1105.7	1077.6	1202.4	1200
2024-11-01	1105.7	1077.6	1202.4	1200
2024-10-01	1105.7	1077.6	1202.4	1200
2024-09-01	1105.7	1077.6	1202.4	1200
2024-08-01	1135	1106.4	1202.4	1200
2024-07-01	1194.2	1183.2	1202.4	1200
2024-09-01	1201.1	1194.4	1202.4	1200
2024-05-01	1205.3	1200	1202.4	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	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	Chess Vikings Trials 2 2025 (D)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
2	BC Open 2025 (U10-U14)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	4	Yes	Analysis
3	EC Closed 2025 (U8+U10 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
4	Buffalo City Chess Junior Closed 2025 (U8 Open+Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
5	3rd Chess Vikings Open Championship 2025 (D)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	6	5	2.5	Yes	Analysis
6	2nd Vikings Classical 2025 (D)	2025-05-24	2025-05-24	Standard	Buffalo City (EBC)	5	4	1	Yes	Analysis
7	EC Open 2025 (U8-U14 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	6	1.5	Yes	Analysis
8	Vikings Holiday 2025 (D)	2025-04-05	2025-04-05	Standard	Buffalo City (EBC)	6	6	3	Yes	Analysis
9	2025 Buffalo City Chess Trials 2 (U8)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
10	2025 Buffalo City Chess Trials 1 (U8)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
11	Vikings Classical March 2025 (U8)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
12	Rapid Feb 2nd Leg 2025 (U8+U10)	2025-02-22	2025-02-22	Rapid	Buffalo City (EBC)	7	6	3	Yes	Analysis
13	NMBCU vs BCC Derby Chess Invitational 2025 (Open B)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
14	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	8	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Vikings Trials 2 2025 (D)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
2	BC Open 2025 (U10-U14)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	4	Yes	Analysis
3	EC Closed 2025 (U8+U10 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
4	Buffalo City Chess Junior Closed 2025 (U8 Open+Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
5	3rd Chess Vikings Open Championship 2025 (D)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	6	5	2.5	Yes	Analysis
6	2nd Vikings Classical 2025 (D)	2025-05-24	2025-05-24	Standard	Buffalo City (EBC)	5	4	1	Yes	Analysis
7	EC Open 2025 (U8-U14 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	6	1.5	Yes	Analysis
8	Vikings Holiday 2025 (D)	2025-04-05	2025-04-05	Standard	Buffalo City (EBC)	6	6	3	Yes	Analysis
9	2025 Buffalo City Chess Trials 2 (U8)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
10	2025 Buffalo City Chess Trials 1 (U8)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
11	Vikings Classical March 2025 (U8)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
12	Rapid Feb 2nd Leg 2025 (U8+U10)	2025-02-22	2025-02-22	Rapid	Buffalo City (EBC)	7	6	3	Yes	Analysis
13	NMBCU vs BCC Derby Chess Invitational 2025 (Open B)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
14	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	8	0	Yes	Analysis
15	EL Junior Closed 2024 (U10)	2024-11-23	2024-11-23	Standard	Buffalo City (EBC)	5	4	1	Yes	Analysis
16	5th BC Trials 2024 (HS B)	2024-08-24	2024-08-24	Standard	Buffalo City (EBC)	5	5	1	Yes	Analysis
17	5th BC Trails 2024 (U10A)	2024-08-17	2024-08-17	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
18	BC 4th HS Trials 204 (B)	2024-07-20	2024-07-20	Standard	Buffalo City (EBC)	5	4	0	Yes	Analysis
19	4th BC Trials 2024 (U10A)	2024-06-08	2024-06-08	Standard	Buffalo City (EBC)	5	3	1	Yes	Analysis
20	3rd BC Trials 2024 (U10B)	2024-05-11	2024-05-11	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
21	Bhongweni Chess Club Open 2024 (U10)	2024-04-27	2024-04-27	Rapid	Buffalo City (EBC)	6	6	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament BC Open 2025				Tournament Chess Vikings Trials 2 2025
		date 2025-10-04	rnd 5	type Rapid	result 1	date 2025-10-18	rnd 1	type Standard	result 1
		Opponent Charles, I (Ithandile)				Opponent Wood, O (Oliver)
2	3	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Samente, A (Anike)				Opponent SINGANZI, M (MELOKUHLE)
3	3	Tournament 3rd Chess Vikings Open Championship 2025				Tournament 3rd Chess Vikings Open Championship 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-02	rnd 6	type Standard	result 0.5
		Opponent Sipunzi, I (Ivani)				Opponent Nzuzo, O (Olothando)

#	Games	Start				End
1	3	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Samente, A (Anike)				Opponent SINGANZI, M (MELOKUHLE)
2	3	Tournament 3rd Chess Vikings Open Championship 2025				Tournament 3rd Chess Vikings Open Championship 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-02	rnd 6	type Standard	result 0.5
		Opponent Sipunzi, I (Ivani)				Opponent Nzuzo, O (Olothando)
3	3	Tournament Vikings Classical March 2025				Tournament 2025 Buffalo City Chess Trials 1
		date 2025-03-15	rnd 4	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Khonza, M (Melothando Lisokuhle)				Opponent Khonza, M (Melothando Lisokuhle)

#	Games	Start				End
1	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Mgudlwa, O (Okuhle)				Opponent Gula, I (Ikhona)
2	1	Tournament Bhongweni Chess Club Open 2024				Tournament Bhongweni Chess Club Open 2024
		date 2024-04-27	rnd 6	type Rapid	result 1	date 2024-04-27	rnd 6	type Rapid	result 1
		Opponent Malatshi, A (Ayabulela)				Opponent Malatshi, A (Ayabulela)
3	1	Tournament Bhongweni Chess Club Open 2024				Tournament Bhongweni Chess Club Open 2024
		date 2024-04-27	rnd 3	type Rapid	result 1	date 2024-04-27	rnd 3	type Rapid	result 1
		Opponent Mabhera, A (Annikka Atida)				Opponent Mabhera, A (Annikka Atida)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Samente, A (Anike)				Opponent SINGANZI, M (MELOKUHLE)
2	3	Tournament Vikings Classical March 2025				Tournament 2025 Buffalo City Chess Trials 1
		date 2025-03-15	rnd 4	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Khonza, M (Melothando Lisokuhle)				Opponent Khonza, M (Melothando Lisokuhle)
3	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Mgudlwa, O (Okuhle)				Opponent Gula, I (Ikhona)

#	Games	Start				End
1	3	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Samente, A (Anike)				Opponent SINGANZI, M (MELOKUHLE)
2	3	Tournament Vikings Classical March 2025				Tournament 2025 Buffalo City Chess Trials 1
		date 2025-03-15	rnd 4	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Khonza, M (Melothando Lisokuhle)				Opponent Khonza, M (Melothando Lisokuhle)
3	2	Tournament Buffalo City Chess Junior Closed 2025				Tournament Buffalo City Chess Junior Closed 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Xu, J (Jiayi)				Opponent Mxabo, S (Sophumelela)

#	Games	Start				End
1	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Mgudlwa, O (Okuhle)				Opponent Gula, I (Ikhona)
2	1	Tournament Bhongweni Chess Club Open 2024				Tournament Bhongweni Chess Club Open 2024
		date 2024-04-27	rnd 6	type Rapid	result 1	date 2024-04-27	rnd 6	type Rapid	result 1
		Opponent Malatshi, A (Ayabulela)				Opponent Malatshi, A (Ayabulela)
3	1	Tournament Bhongweni Chess Club Open 2024				Tournament Bhongweni Chess Club Open 2024
		date 2024-04-27	rnd 3	type Rapid	result 1	date 2024-04-27	rnd 3	type Rapid	result 1
		Opponent Mabhera, A (Annikka Atida)				Opponent Mabhera, A (Annikka Atida)

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	Makgaila ,M (Moagi)	6	0	-425	5	0	-425	1	0	-425	0	0	0
1	Makgaila ,M (Moagi)	6	1279.3	854.3	5	1293.1	854.3	1	1200	854.3	0	0	0
2	Weng ,J (Junjie)	5	0	-425	5	0	-425	0	0	0	0	0	0
2	Weng ,J (Junjie)	5	1355.6	930.6	5	1344.7	930.6	0	0	0	0	0	0
3	Gwana ,L (Libubomi)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
3	Gwana ,L (Libubomi)	3	1236.5	953.1	3	1227.5	953.1	0	0	0	0	0	0
4	Naidoo ,N (Nadeema)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Naidoo ,N (Nadeema)	3	1198.2	1339.8	3	1197.9	1339.8	0	0	0	0	0	0
5	Xu ,J (Jiayi)	3	3	425	3	3	425	0	0	0	0	0	0
5	Xu ,J (Jiayi)	3	1217.8	1642.8	3	1218.5	1642.8	0	0	0	0	0	0
6	Kapp ,M (Michael)	3	0	-425	3	0	-425	0	0	0	0	0	0
6	Kapp ,M (Michael)	3	1286.2	861.2	3	1290.2	861.2	0	0	0	0	0	0
7	Mxabo ,S (Sophumelela)	3	3	425	3	3	425	0	0	0	0	0	0
7	Mxabo ,S (Sophumelela)	3	1235.3	1660.3	3	1240.3	1660.3	0	0	0	0	0	0
8	Mazikana ,E (Elsie)	3	0	-425	2	0	-425	1	0	-425	0	0	0
8	Mazikana ,E (Elsie)	3	1229.6	804.6	2	1233.2	804.6	1	1200	804.6	0	0	0
9	Ndongeni ,S (Senkosi)	3	2	141.7	2	2	425	0	0	0	1	0	-425
9	Ndongeni ,S (Senkosi)	3	1196.7	1338.4	2	1196.6	1621.7	0	0	0	1	1200	771.7
10	Dyantyi ,A (Aviwe)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Dyantyi ,A (Aviwe)	2	1200	775	2	1199.6	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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Personal

Coetzee, N (Niki)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms