Chess South Africa Ratings Database

PLAYER PAGE

Personal

Siebritz, N (Noelle)

Chess SA id

2110159903

FIDE id

Date of birth

2011-01-09 (U16)

Gender

Female

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

38.4

Junior GPX Points

1193.7

Item	Main	Standard	Rapid	Blitz
Rating	1357.7	1305.8	1394.1	1116.6
Raw rating	1357.7	1305.8	1394.1	1116.6
Weighted rating	1299.8	1267	1320.4	1107.5
Weighted performance	1278.3	1254.9	1384.5	0
Floor	871.8	809.4	919.3	700
K-factor	36	36	32	36
Min/Max rating change allowed	132.4	142.6	125.7	186.7
Highest rating	1371.8 2025-09-01	1309.4 2025-06-01	1419.3 2025-08-01	1200 2018-10-01
Highest raw rating	1371.8 2025-09-01	1309.4 2025-06-01	1419.3 2025-08-01	1200 2019-12-01
Highest weighted rating	1366.3 2018-10-01	1253.7 2025-08-01	1407.9 2018-10-01	1200 2018-10-01
Highest weighted performance	1366.3 2025-04-01	1292.1 2024-08-01	1410.1 2025-09-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1357.7	1305.8	1394.1	1116.6
Analysis
Rating	1357.7	1305.8	1394.1	1116.6
Raw rating	1357.7	1305.8	1394.1	1116.6
Weighted rating	1299.8	1267	1320.4
Weighted performance	1278.3	1254.9	1384.5
K-factor	36	36	32	36
Floor	871.8	809.4	919.3	700
Max/Min rating change allowed	132.4	142.6	125.7	186.7
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	1357.7	1305.8	1394.1	1116.6
New weighted rating	1309.4	1272.8	1332.5	1107.3
New weighted performance	1277.9	1254.4	1384	0
Temp new rating	1357.7	1305.8	1394.1	1116.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1357.7	1305.8	1394.1	1116.6
New K-factor	36	36	32	36
New floor	871.8	809.4	919.3	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	43	23	20	0
	108	32	46	30
	30	4	26	0
	0	0	0	0
	0	0	0	0
History	181	59	92	30

Games since
	Main 156	Standard 55		Rapid 71		Blitz 30
Gender	Female
Age group	U16
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2588		817		76
Female	469		194		20
U16	404		140		18
U16 Female	98		44		6
Standard
	RSA		Province		Region
Overall	3005		857		45
Female	618		241		16
U16	487		156		12
U16 Female	122		49		6
Rapid
	RSA		Province		Region
Overall	527		273		64
Female	64		38		16
U16	85		46		14
U16 Female	20		12		5
Blitz
	RSA		Province		Region
Overall	570		199		22
Female	68		24		5
U16	55		17		5
U16 Female	13		4		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	43	25	58.14	69.2	1334.4	1403.6
Standard	23	11.5	50	0	1362.5	1362.5
Rapid	20	13.5	67.5	148.8	1302.1	1450.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	181	80.5	44.48	-47	1273	1226.1
Standard	59	27.5	46.61	-28.8	1320.8	1292
Rapid	92	42	45.65	-37	1242.4	1205.5
Blitz	30	11	36.67	-113.3	1272.9	1159.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1357.7	1305.8	1394.1	1116.6
2025-09-01	1371.8	1305.8	1415.9	1116.6
2025-08-01	1366.7	1305.8	1419.3	1116.6
2025-07-01	1360.9	1309.4	1407.9	1116.6
2025-06-01	1360.9	1309.4	1407.9	1116.6
2025-05-01	1360.6	1292.9	1407.9	1116.6
2025-04-01	1366.3	1281.8	1407.9	1116.6
2025-03-01	1336.4	1248.1	1407.9	1116.6
2025-02-01	1267.7	1248.1	1277.3	1115.7
2025-01-01	1267.7	1248.1	1277.3	1073.3
2024-12-01	1294	1278.3	1277.3	1073.3
2024-11-01	1276.9	1278.3	1229.8	1073.3
2024-10-01	1276.9	1278.3	1229.8	1073.3
2024-09-01	1274	1278.3	1242	1073.3
2024-08-01	1246.8	1234.3	1242	1073.3
2024-07-01	1229.2	1212.3	1242	1073.3
2024-06-01	1186	1212.3	1150.3	1073.3
2024-08-01	1125.9	1139.2	1186.3	1110
2024-04-01	1107.8	1139.2	1145.7	1172.6
2024-03-01	1092.2	1139.2	1070.4	1172.6
2024-02-01	1037.9	1139.2	966.7	1167.6
2024-01-01	1044.9	1139.2	1006.3	1200
2023-12-01	1044.9	1139.2	1006.3	1200
2023-11-01	1044.9	1139.2	1006.3	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	Basil Ellman Annual Rapid 2025 (Seniors)	2025-09-20	2025-09-20	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
2	Western Cape Women�s Championship 2025 (Sunday Rapid)	2025-08-10	2025-08-10	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
3	Lower West Coast Top Schools 2025 (U17)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	6	6	4.5	Yes	Analysis
4	Deep Blue Open 2025 (A)	2025-06-21	2025-06-21	Standard	West Coast (WCU)	5	5	1.5	Yes	Analysis
5	West Coast And Mykonos Open 2025 (Open)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
6	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
7	West Coast Schools Chess Prestige 2025 (U15 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
8	Lower West Coast Prestige 2025 (U15 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	4	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Basil Ellman Annual Rapid 2025 (Seniors)	2025-09-20	2025-09-20	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
2	Western Cape Women�s Championship 2025 (Sunday Rapid)	2025-08-10	2025-08-10	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
3	Lower West Coast Top Schools 2025 (U17)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	6	6	4.5	Yes	Analysis
4	Deep Blue Open 2025 (A)	2025-06-21	2025-06-21	Standard	West Coast (WCU)	5	5	1.5	Yes	Analysis
5	West Coast And Mykonos Open 2025 (Open)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
6	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
7	West Coast Schools Chess Prestige 2025 (U15 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
8	Lower West Coast Prestige 2025 (U15 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	4	4	Yes	Analysis
9	Lambertsbay Chess Club Crayfish Classic 2024	2024-12-16	2024-12-16	Standard	West Coast (WCU)	5	5	2	Yes	Analysis
10	West Coast Grand Challange League 2024 (PS Champions)	2024-10-26	2024-10-26	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
11	The Rooibos Open 2024 (Elite)	2024-08-24	2024-08-24	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
12	Western Cape Women�s Championship 2024 (Intermediate)	2024-08-10	2024-08-10	Standard	West Coast (WCU)	5	5	2	Yes	Analysis
13	Western Cape Women�s Championship 2024 (U14)	2024-08-09	2024-08-09	Standard	West Coast (WCU)	5	5	3	Yes	Analysis
14	South African Open Chess Championship 2024 (C)	2024-07-04	2024-07-07	Standard	Ethekwini (KED)	7	7	3	Yes	Analysis
15	Lambertsbay Youth Open 2024 (Open)	2024-06-17	2024-06-17	Rapid	West Coast (WCU)	5	4	2.5	Yes	Analysis
16	Basil Ellman Annual Rapid 2024 (Advanced)	2024-06-08	2024-06-08	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
17	Deep Blue CC May Blitz 2024	2024-05-22	2024-05-22	Blitz	West Coast (WCU)	7	7	2	Yes	Analysis
18	West Coast & Mykonos Open 2024 (U14)	2024-05-18	2024-05-18	Standard	West Coast (WCU)	5	5	3.5	Yes	Analysis
19	Lower West Top Schools 2024 (U18)	2024-05-11	2024-05-11	Rapid	West Coast (WCU)	5	4	0.5	Yes	Analysis
20	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	5	2	Yes	Analysis
21	Lambersbaai Open 2024 (A)	2024-05-01	2024-05-01	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
22	Deep Blue Chess Club April Blitz 2024	2024-04-24	2024-04-24	Blitz	West Coast (WCU)	7	5	1	Yes	Analysis
23	Deep Blue Open 2024 (Development)	2024-04-13	2024-04-13	Rapid	West Coast (WCU)	5	5	2.5	Yes	Analysis
24	Deep Blue March Blitz 2024	2024-03-27	2024-03-27	Blitz	West Coast (WCU)	5	5	2	Yes	Analysis
25	West Coast Schools Chess Prestige Championships 2024 (U13 Girls)	2024-03-09	2024-03-09	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
26	Lower West Coast Schools Chess Prestige 2024 (U13 Girls)	2024-02-17	2024-02-17	Rapid	West Coast (WCU)	5	5	3.5	Yes	Analysis
27	Deep Blue February Blitz Juniors 2024	2024-02-28	2024-02-28	Blitz	West Coast (WCU)	7	6	3	Yes	Analysis
28	Longacres Top 10 Battle January 2024	2024-01-27	2024-01-27	Rapid	West Coast (WCU)	5	4	0	Yes	Analysis
29	Deep Blue CC Blitz 2024 (Juniors)	2024-01-27	2024-01-27	Blitz	West Coast (WCU)	7	7	3	Yes	Analysis
30	Deep Blue Open Team 2023	2023-11-04	2023-11-04	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
31	Western Cape Closed Championship 2023 (U14)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	0	Yes	Analysis
32	Deep Blue Open 2023 (Advanced)	2023-09-16	2023-09-16	Rapid	West Coast (WCU)	5	5	0	Yes	Analysis
33	Basil Ellman Rapid 2023 (B)	2023-09-30	2023-09-30	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
34	CW Top Schools 2023 (U14)	2023-08-12	2023-08-12	Standard	West Coast (WCU)	5	4	0.5	Yes	Analysis
35	Saldanha Open 2023 (B)	2023-07-29	2023-07-29	Rapid	West Coast (WCU)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament Lower West Coast Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Van Rooi, K (Kaylene)				Opponent Van Rooi, K (Kaylene)
2	5	Tournament West Coast Grand Challange League 2024				Tournament Lambertsbay Chess Club Crayfish Classic 2024
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2024-12-16	rnd 1	type Standard	result 1
		Opponent Januarie, J (Johydin)				Opponent Ruiters, S (Shakirah)
3	5	Tournament Basil Ellman Annual Rapid 2024				Tournament Basil Ellman Annual Rapid 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 5	type Rapid	result 1
		Opponent Plint, G (Gordon)				Opponent De Meillon, K (Kian)

#	Games	Start				End
1	7	Tournament Western Cape PS Individuals Championship 2024				Tournament West Coast & Mykonos Open 2024
		date 2024-05-04	rnd 4	type Standard	result 0.5	date 2024-05-18	rnd 4	type Standard	result 1
		Opponent Buhr, G (Gretchen)				Opponent Schoeman, M (Mischke)
2	4	Tournament West Coast Schools Chess Prestige 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-04-26	rnd 1	type Standard	result 1
		Opponent Hendricks, T (Tamia)				Opponent Buis, J (Joshleigh)
3	3	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 1	type Standard	result 1	date 2024-08-09	rnd 3	type Standard	result 1
		Opponent Williams, S (Skyler)				Opponent Kruger, D (Dawid)

#	Games	Start				End
1	10	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Top Schools 2025
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2025-06-14	rnd 2	type Rapid	result 1
		Opponent Januarie, J (Johydin)				Opponent Baardman, J (Jason)
2	5	Tournament Basil Ellman Annual Rapid 2024				Tournament Basil Ellman Annual Rapid 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 5	type Rapid	result 1
		Opponent Plint, G (Gordon)				Opponent De Meillon, K (Kian)
3	4	Tournament Lambertsbay Youth Open 2024				Tournament The Rooibos Open 2024
		date 2024-06-17	rnd 3	type Rapid	result 1	date 2024-08-24	rnd 1	type Rapid	result 1
		Opponent Botha, R (Randzu)				Opponent Owies, H (Herchelle)

#	Games	Start				End
1	2	Tournament Deep Blue February Blitz Juniors 2024				Tournament Deep Blue March Blitz 2024
		date 2024-02-28	rnd 7	type Blitz	result 1	date 2024-03-27	rnd 1	type Blitz	result 1
		Opponent Brutus, M (Michael)				Opponent Ellman, A (Andries)
2	2	Tournament Deep Blue February Blitz Juniors 2024				Tournament Deep Blue February Blitz Juniors 2024
		date 2024-02-28	rnd 2	type Blitz	result 1	date 2024-02-28	rnd 3	type Blitz	result 1
		Opponent Ellman, E (Elle-Marie)				Opponent Khoza, L (Lwandle)
3	2	Tournament Deep Blue CC Blitz 2024				Tournament Deep Blue CC Blitz 2024
		date 2024-01-27	rnd 3	type Blitz	result 1	date 2024-01-27	rnd 4	type Blitz	result 1
		Opponent Ellman, E (Elle-Marie)				Opponent Ellman, A (Andries)

#	Games	Start				End
1	5	Tournament Lower West Coast Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Van Rooi, K (Kaylene)				Opponent Van Rooi, K (Kaylene)
2	5	Tournament West Coast Grand Challange League 2024				Tournament Lambertsbay Chess Club Crayfish Classic 2024
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2024-12-16	rnd 1	type Standard	result 1
		Opponent Januarie, J (Johydin)				Opponent Ruiters, S (Shakirah)
3	4	Tournament West Coast Schools Chess Prestige 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-04-26	rnd 1	type Standard	result 1
		Opponent Hendricks, T (Tamia)				Opponent Buis, J (Joshleigh)

#	Games	Start				End
1	4	Tournament West Coast Schools Chess Prestige 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-04-26	rnd 1	type Standard	result 1
		Opponent Hendricks, T (Tamia)				Opponent Buis, J (Joshleigh)
2	3	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 1	type Standard	result 1	date 2024-08-09	rnd 3	type Standard	result 1
		Opponent Williams, S (Skyler)				Opponent Kruger, D (Dawid)
3	3	Tournament West Coast & Mykonos Open 2024				Tournament West Coast & Mykonos Open 2024
		date 2024-05-18	rnd 2	type Standard	result 1	date 2024-05-18	rnd 4	type Standard	result 1
		Opponent Eksteen, T (Theunis)				Opponent Schoeman, M (Mischke)

#	Games	Start				End
1	10	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Top Schools 2025
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2025-06-14	rnd 2	type Rapid	result 1
		Opponent Januarie, J (Johydin)				Opponent Baardman, J (Jason)
2	2	Tournament Western Cape Women�s Championship 2025				Tournament Basil Ellman Annual Rapid 2025
		date 2025-08-10	rnd 5	type Rapid	result 1	date 2025-09-20	rnd 1	type Rapid	result 1
		Opponent Gupta, A (Ansh)				Opponent Baartman, J (Jason)
3	2	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-10	rnd 2	type Rapid	result 1	date 2025-08-10	rnd 3	type Rapid	result 1
		Opponent Machisi, D (Daniella)				Opponent Varadharajan, T (Theeran)

#	Games	Start				End
1	2	Tournament Deep Blue February Blitz Juniors 2024				Tournament Deep Blue March Blitz 2024
		date 2024-02-28	rnd 7	type Blitz	result 1	date 2024-03-27	rnd 1	type Blitz	result 1
		Opponent Brutus, M (Michael)				Opponent Ellman, A (Andries)
2	2	Tournament Deep Blue February Blitz Juniors 2024				Tournament Deep Blue February Blitz Juniors 2024
		date 2024-02-28	rnd 2	type Blitz	result 1	date 2024-02-28	rnd 3	type Blitz	result 1
		Opponent Ellman, E (Elle-Marie)				Opponent Khoza, L (Lwandle)
3	2	Tournament Deep Blue CC Blitz 2024				Tournament Deep Blue CC Blitz 2024
		date 2024-01-27	rnd 3	type Blitz	result 1	date 2024-01-27	rnd 4	type Blitz	result 1
		Opponent Ellman, E (Elle-Marie)				Opponent Ellman, A (Andries)

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	Siebritz ,Y (Yul)	7	0.5	-364.3	3	0.5	-283.3	0	0	0	4	0	-425
1	Siebritz ,Y (Yul)	7	1408.5	1044.2	3	1379.2	1125.1	0	0	0	4	1225.1	983.5
2	Stoffberg ,M (Mikaeel)	7	1	-303.6	2	0.5	-212.5	2	0.5	-212.5	3	0	-425
2	Stoffberg ,M (Mikaeel)	7	1272.5	969	2	1285.5	1060	2	1221.8	1060	3	1224.6	847.5
3	Ellman ,A (Andries)	6	2.5	-70.8	0	0	0	3	0.5	-283.3	3	2	141.7
3	Ellman ,A (Andries)	6	1221.2	1150.4	0	0	0	3	1289.2	937.9	3	1120.7	1362.9
4	Love ,C (Celine)	4	1	-212.5	1	0	-425	3	1	-141.7	0	0	0
4	Love ,C (Celine)	4	1425	1212.5	1	1372.1	1000	3	1482.1	1283.4	0	0	0
5	Sedeman ,A (Aiden)	4	0	-425	0	0	0	1	0	-425	3	0	-425
5	Sedeman ,A (Aiden)	4	1328	903	0	0	0	1	1493.2	903	3	1224.5	903
6	Schoeman ,M (Mischke)	3	2	141.7	2	1	0	1	1	425	0	0	0
6	Schoeman ,M (Mischke)	3	1383.1	1524.8	2	1282.6	1383.1	1	1482.2	1808.1	0	0	0
7	Philander ,M (Megan)	3	2	141.7	1	1	425	2	1	0	0	0	0
7	Philander ,M (Megan)	3	1271.4	1413.1	1	1286.9	1696.4	2	1224.4	1271.4	0	0	0
8	Baartman ,J (Jason)	3	1	-141.7	0	0	0	2	1	0	1	0	-425
8	Baartman ,J (Jason)	3	1237.7	1096.1	0	0	0	2	1270.8	1237.7	1	1149.6	812.7
9	Baardman ,J (Jason)	3	2	141.7	0	0	0	2	2	425	1	0	-425
9	Baardman ,J (Jason)	3	1225.7	1367.4	0	0	0	2	1233.7	1650.7	1	1200	800.7
10	Marinus ,M (Madison)	3	3	425	0	0	0	1	1	425	2	2	425
10	Marinus ,M (Madison)	3	1259.9	1684.9	0	0	0	1	1325.4	1684.9	2	1122.2	1684.9

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Siebritz, N (Noelle)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms