Chess South Africa Ratings Database

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Personal

Ackerdien, S (Saud)

Chess SA id

1100140439

FIDE id

Date of birth

2010-07-12 (U16)

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

74.8

Junior GPX Points

1442

Item	Main	Standard	Rapid	Blitz
Rating	1576.1	1571.3	1246.8	1200
Raw rating	1575.9	1571.3	1246.8	1200
Weighted rating	1448.8	1438.2	1241.4	1200
Weighted performance	1576.1	1568.6	0	0
Floor	1075.9	1071.3	748.2	700
K-factor	32	32	36	36
Min/Max rating change allowed	97.1	97.7	155.1	165.8
Highest rating	1576.1 2025-09-30	1571.3 2025-09-30	1368 2024-06-01	1200 2018-10-01
Highest raw rating	1575.9 2025-09-30	1571.3 2025-09-30	1248.2 2024-07-01	1200 2024-02-01
Highest weighted rating	1448.8 2025-09-30	1438.2 2025-09-30	1238.5 2025-08-01	1200 2018-10-01
Highest weighted performance	1576.1 2025-09-30	1568.6 2025-09-30	1368 2024-06-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.2	0	0	0
New rating	1575.9	1571.3	1246.8	1200
Analysis
Rating	1576.1	1571.3	1246.8	1200
Raw rating	1575.9	1571.3	1246.8	1200
Weighted rating	1448.8	1438.2	1241.4
Weighted performance	1576.1	1568.6	0
K-factor	32	32	36	36
Floor	1075.9	1071.3	748.2	700
Max/Min rating change allowed	97.1	97.7	155.1	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	1575.9	1571.3	1246.8	1200
New weighted rating	1459	1448.9	1242.6	1200
New weighted performance	1575.5	1568.1	0	0
Temp new rating	1575.9	1571.3	1246.8	1200
Temp new rating +/-	-0.2	0	0	0
Final new rating +/-	-0.2	0	0	0
New rating	1575.9	1571.3	1246.8	1200
New K-factor	32	32	36	36
New floor	1075.9	1071.3	748.2	700

Item	Main	Standard	Rapid
	0	0	0
	65	65	0
	61	50	11
	45	45	0
	12	12	0
	0	0	0
History	183	172	11

Games since
	Main 141	Standard 130		Rapid 11		Blitz 0
Gender	Male
Age group	U16
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	755		89		34
Male	674		81		30
U16	87		15		10
U16 Male	73		12		8
Standard
	RSA		Province		Region
Overall	729		85		33
Male	644		77		29
U16	87		15		10
U16 Male	72		12		8
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	65	38	58.46	71.9	1419.7	1491.6
Standard	65	38	58.46	71.9	1419.7	1491.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	183	108.5	59.29	79	1338.6	1417.5
Standard	172	101.5	59.01	76.6	1334.5	1411.1
Rapid	11	7	63.64	115.9	1401.8	1517.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1575.9	1571.3	1246.8	1200
2025-09-01	1537.1	1532.2	1246.8	1200
2025-08-01	1537.1	1532.2	1246.8	1200
2025-07-01	1438.2	1431.4	1246.8	1200
2025-06-01	1432.7	1423.4	1246.8	1200
2025-05-01	1418.1	1408.2	1246.8	1200
2025-04-01	1416.6	1405.3	1246.8	1200
2025-03-01	1420.3	1415.1	1246.8	1200
2025-02-01	1410.9	1399.3	1246.8	1200
2025-01-01	1371.9	1357.1	1246.8	1200
2024-12-01	1361.3	1344.9	1246.8	1200
2024-11-01	1361.3	1344.9	1246.8	1200
2024-10-01	1368.2	1344.9	1248.2	1200
2024-09-01	1414.4	1395.8	1248.2	1200
2024-08-01	1429	1397.1	1248.2	1200
2024-07-01	1478.7	1451.8	1248.2	1200
2024-06-01	1455.1	1451.8	1200	1200
2024-08-01	1458.6	1454.7	1200	1200
2024-04-01	1454.6	1448.3	1200	1200
2024-03-01	1454.6	1448.3	1200	1200
2024-02-01	1485.7	1484.5	1200	1200
2024-01-01	1485.7	1484.5	1200	1200
2023-12-01	1485.7	1484.5	1200	1200
2023-11-01	1485.7	1484.5	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 (U16 Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4.5	Yes	Analysis
2	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3.5	Yes	Analysis
3	Eastern Cape Inter-Regional Team Chess Championship 2025 (U16)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	5	3	Yes	Analysis
4	Fide in the Bay 2025 (B)	2025-07-05	2025-07-05	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis
5	NMBCU Closed 2025 (U16)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
6	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
7	NMB 3rd Trials 2025 (U16)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
8	South African Junior Closed Chess Championships 2025 (U16 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2	Yes	Analysis
9	NMB 2nd Trials 2025 (U16)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
10	Pearson High Chess Festival 2025 (B)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
11	NMBCH Trial 1 2025 (U16)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (U16 Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4.5	Yes	Analysis
2	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3.5	Yes	Analysis
3	Eastern Cape Inter-Regional Team Chess Championship 2025 (U16)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	5	3	Yes	Analysis
4	Fide in the Bay 2025 (B)	2025-07-05	2025-07-05	Standard	Nelson Mandela Bay (ENM)	5	5	4.5	Yes	Analysis
5	NMBCU Closed 2025 (U16)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
6	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
7	NMB 3rd Trials 2025 (U16)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
8	South African Junior Closed Chess Championships 2025 (U16 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2	Yes	Analysis
9	NMB 2nd Trials 2025 (U16)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
10	Pearson High Chess Festival 2025 (B)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
11	NMBCH Trial 1 2025 (U16)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
12	Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Candidates)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	6	3.5	Yes	Analysis
13	NMBCU Top Schools 2024 (High School)	2024-10-12	2024-10-12	Rapid	Nelson Mandela Bay (ENM)	5	5	2.5	Yes	Analysis
14	NMBCU Closed 2024 (U16)	2024-09-20	2024-09-21	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
15	NMBCU Trial 5 2024 (U16)	2024-08-16	2024-08-17	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
16	NMB Open 2024 (B)	2024-08-03	2024-08-04	Standard	Nelson Mandela Bay (ENM)	6	5	2.5	Yes	Analysis
17	NMBCU Trials 4 2024 (U16)	2024-07-12	2024-07-13	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
18	Willow Academy 2024 (A)	2024-06-22	2024-06-22	Rapid	Nelson Mandela Bay (ENM)	6	6	4.5	Yes	Analysis
19	NMBCU Trial 3 2024 (U16)	2024-05-10	2024-05-11	Standard	Nelson Mandela Bay (ENM)	6	5	2.5	Yes	Analysis
20	NMBCU Trials 2 2024 (U16)	2024-04-12	2024-04-13	Standard	Nelson Mandela Bay (ENM)	6	5	3	Yes	Analysis
21	NMBCU Trials 1 2024 (U16)	2024-02-16	2024-02-16	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
22	Pearson Open Chess Tournament 2024 (B)	2024-02-23	2024-02-24	Standard	Nelson Mandela Bay (ENM)	5	4	3	Yes	Analysis
23	Pearson Open Chess Tournament 2024 (C)	2024-02-23	2024-02-24	Standard	Nelson Mandela Bay (ENM)	5	1	1	Yes	Analysis
24	PECC Club Championship 2023 (Junior)	2023-10-12	2023-11-23	Standard	Nelson Mandela Bay (ENM)	6	4	3	Yes	Analysis
25	Eastern Cape Provincial Individual Championship 2023 (U14 Boys)	2023-10-05	2023-10-05	Standard	Nelson Mandela Bay (ENM)	7	7	4	Yes	Analysis
26	Eastern Cape Chess Team Championship 2023 (U14)	2023-10-07	2023-10-08	Standard	Sarah Baartman (ESB)	5	4	3	Yes	Analysis
27	NMBCU Closed 2023 (U14)	2023-08-11	2023-08-12	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
28	NMBCU Trial 4 2023 (U14)	2023-07-28	2023-07-29	Standard	Nelson Mandela Bay (ENM)	6	6	5	Yes	Analysis
29	EP Trials 3 2023 (U14)	2023-05-05	2023-05-06	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
30	NMB 2nd Trials 2023 (U14)	2023-03-24	2023-03-25	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
31	NMB 1st Trials 2023 (U14)	2023-02-17	2023-02-18	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
32	NMBCU Trial 3 2022 (U14)	2022-07-22	2022-07-23	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
33	2022 NMB Junior Trials 2 (U12)	2022-05-13	2022-05-14	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis

#	Games	Start				End
1	16	Tournament NMBCU Open 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-05-24	rnd 5	type Standard	result 1	date 2025-07-10	rnd 3	type Standard	result 1
		Opponent Ferreira, K (Kyle)				Opponent Banda, B (Benjamin)
2	9	Tournament EP Trials 3 2023				Tournament NMBCU Closed 2023
		date 2023-05-06	rnd 6	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Smith, A (Andre)				Opponent Clainos, S (Spiro)
3	8	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament EC Closed 2025
		date 2025-07-12	rnd 3	type Standard	result 0.5	date 2025-09-06	rnd 4	type Standard	result 1
		Opponent Sonti, K (Kamvalethu)				Opponent Mangala, S (Sibonelo)

#	Games	Start				End
1	16	Tournament NMBCU Open 2025				Tournament Eastern Cape Inter-Regional Team Chess Championship 2025
		date 2025-05-24	rnd 5	type Standard	result 1	date 2025-07-10	rnd 3	type Standard	result 1
		Opponent Ferreira, K (Kyle)				Opponent Banda, B (Benjamin)
2	9	Tournament EP Trials 3 2023				Tournament NMBCU Closed 2023
		date 2023-05-06	rnd 6	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Smith, A (Andre)				Opponent Clainos, S (Spiro)
3	8	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament EC Closed 2025
		date 2025-07-12	rnd 3	type Standard	result 0.5	date 2025-09-06	rnd 4	type Standard	result 1
		Opponent Sonti, K (Kamvalethu)				Opponent Mangala, S (Sibonelo)

#	Games	Start				End
1	4	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 1	type Rapid	result 0.5	date 2024-06-22	rnd 4	type Rapid	result 1
		Opponent Marais, J (Juan-Pierre)				Opponent Mellet, A (Andries)
2	2	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 3	type Rapid	result 1
		Opponent Mellet, A (Andries)				Opponent Quiggin, T (Thurstan)
3	1	Tournament NMBCU Top Schools 2024				Tournament NMBCU Top Schools 2024
		date 2024-10-12	rnd 5	type Rapid	result 0.5	date 2024-10-12	rnd 5	type Rapid	result 0.5
		Opponent Gcwabe, O (Othandwayo)				Opponent Gcwabe, O (Othandwayo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament NMBCU Trials 1 2024				Tournament Pearson Open Chess Tournament 2024
		date 2024-02-16	rnd 5	type Standard	result 1	date 2024-02-24	rnd 3	type Standard	result 1
		Opponent Amachukwu, J (Joseph)				Opponent Jojo, D (Dini)
2	5	Tournament NMBCU Trial 4 2023				Tournament NMBCU Closed 2023
		date 2023-07-29	rnd 4	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Cona, S (Shaunwin)				Opponent Clainos, S (Spiro)
3	4	Tournament Fide in the Bay 2025				Tournament Fide in the Bay 2025
		date 2025-07-05	rnd 1	type Standard	result 1	date 2025-07-05	rnd 4	type Standard	result 1
		Opponent Fogarty, S (Simon)				Opponent Prinsloo, L (Liam)

#	Games	Start				End
1	5	Tournament NMBCU Trials 1 2024				Tournament Pearson Open Chess Tournament 2024
		date 2024-02-16	rnd 5	type Standard	result 1	date 2024-02-24	rnd 3	type Standard	result 1
		Opponent Amachukwu, J (Joseph)				Opponent Jojo, D (Dini)
2	5	Tournament NMBCU Trial 4 2023				Tournament NMBCU Closed 2023
		date 2023-07-29	rnd 4	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Cona, S (Shaunwin)				Opponent Clainos, S (Spiro)
3	4	Tournament Fide in the Bay 2025				Tournament Fide in the Bay 2025
		date 2025-07-05	rnd 1	type Standard	result 1	date 2025-07-05	rnd 4	type Standard	result 1
		Opponent Fogarty, S (Simon)				Opponent Prinsloo, L (Liam)

#	Games	Start				End
1	3	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 2	type Rapid	result 1	date 2024-06-22	rnd 4	type Rapid	result 1
		Opponent Dugmore, D (Deacon)				Opponent Mellet, A (Andries)
2	2	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 3	type Rapid	result 1
		Opponent Mellet, A (Andries)				Opponent Quiggin, T (Thurstan)
3	1	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 6	type Rapid	result 1	date 2024-06-22	rnd 6	type Rapid	result 1
		Opponent Bouwer, R (Ruben)				Opponent Bouwer, R (Ruben)

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	Brown ,N (Nathan)	7	2	-182.1	7	2	-182.1	0	0	0	0	0	0
1	Brown ,N (Nathan)	7	1361.6	1179.5	7	1370.6	1179.5	0	0	0	0	0	0
2	Dugmore ,D (Deacon)	7	6	303.6	6	5	283.3	1	1	425	0	0	0
2	Dugmore ,D (Deacon)	7	1429.2	1732.8	6	1429.9	1712.5	1	1078	1854.2	0	0	0
3	Cona ,S (Shaunwin)	5	3.5	170	5	3.5	170	0	0	0	0	0	0
3	Cona ,S (Shaunwin)	5	1234.6	1404.6	5	1232.5	1404.6	0	0	0	0	0	0
4	Mangala ,S (Sibonelo)	5	3	85	5	3	85	0	0	0	0	0	0
4	Mangala ,S (Sibonelo)	5	1453.4	1538.4	5	1464.1	1538.4	0	0	0	0	0	0
5	Chipunza ,J (Jared)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
5	Chipunza ,J (Jared)	4	1667.1	1348.3	4	1654.5	1348.3	0	0	0	0	0	0
6	Sonti ,K (Kamvalethu)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
6	Sonti ,K (Kamvalethu)	4	1236	1342.2	4	1230.3	1342.2	0	0	0	0	0	0
7	Coetzee ,S (Schalk)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
7	Coetzee ,S (Schalk)	4	1375.5	1269.2	4	1364.3	1269.2	0	0	0	0	0	0
8	Koutsouvelis ,J (Joshua)	4	3.5	318.8	4	3.5	318.8	0	0	0	0	0	0
8	Koutsouvelis ,J (Joshua)	4	1216.7	1535.4	4	1216.4	1535.4	0	0	0	0	0	0
9	Blandy ,L (Levi)	4	2	0	4	2	0	0	0	0	0	0	0
9	Blandy ,L (Levi)	4	1352.9	1352.9	4	1365.2	1352.9	0	0	0	0	0	0
10	Hall ,J (Joshua)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
10	Hall ,J (Joshua)	4	1312.8	1206.6	4	1315.2	1206.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Ackerdien, S (Saud)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms