Chess South Africa Ratings Database

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Personal

Visser, AF (Aidan)

Chess SA id

1140139663

FIDE id

Date of birth

2014-06-20 (U12)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1332.4

Item	Main	Standard	Rapid	Blitz
Rating	1420.1	1424.6	1191.2	1200
Raw rating	1420.1	1424.6	1191.2	1200
Weighted rating	1395.7	1399.9	1189.6	1200
Weighted performance	1411.5	1415.4	0	0
Floor	959.2	956.4	704	700
K-factor	32	32	36	36
Min/Max rating change allowed	121.2	120.4	167.9	165.8
Highest rating	1552.3 2022-04-01	1548.7 2022-04-01	1231.7 2023-10-01	1200 2018-10-01
Highest raw rating	1459.2 2023-08-01	1456.4 2023-08-01	1204 2024-02-01	1200 2024-02-01
Highest weighted rating	1459.2 2024-03-01	1456.4 2024-03-01	1204 2024-07-01	1200 2018-10-01
Highest weighted performance	1552.3 2022-04-01	1548.7 2022-04-01	1231.7 2023-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1420.1	1424.6	1191.2	1200
Analysis
Rating	1420.1	1424.6	1191.2	1200
Raw rating	1420.1	1424.6	1191.2	1200
Weighted rating	1395.7	1399.9	1189.6
Weighted performance	1411.5	1415.4	0
K-factor	32	32	36	36
Floor	959.2	956.4	704	700
Max/Min rating change allowed	121.2	120.4	167.9	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	1420.1	1424.6	1191.2	1200
New weighted rating	1398.3	1402.7	1189.5	1200
New weighted performance	1403.1	1407	0	0
Temp new rating	1420.1	1424.6	1191.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1420.1	1424.6	1191.2	1200
New K-factor	32	32	36	36
New floor	959.2	956.4	704	700

Item	Main	Standard	Rapid
	0	0	0
	49	49	0
	91	84	7
	39	35	4
	37	37	0
	0	0	0
History	216	205	11

Games since
	Main 140	Standard 133		Rapid 7		Blitz 0
Gender	Male
Age group	U12
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	1972		693		66
Male	1626		558		55
U12	253		93		6
U12 Male	181		63		5
Standard
	RSA		Province		Region
Overall	1830		679		62
Male	1512		554		53
U12	229		86		6
U12 Male	164		57		5
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	49	31.5	64.29	121.4	1317.1	1438.5
Standard	49	31.5	64.29	121.4	1317.1	1438.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	216	134	62.04	102.3	1262	1364.3
Standard	205	129	62.93	109.9	1260.7	1370.6
Rapid	11	5	45.45	-38.6	1285	1246.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1420.1	1424.6	1191.2	1200
2025-09-30	1442.1	1453.7	1191.2	1200
2025-09-01	1442.1	1453.7	1191.2	1200
2025-08-01	1416.8	1422.8	1191.2	1200
2025-07-01	1416.8	1422.8	1191.2	1200
2025-06-01	1397.4	1398.8	1191.2	1200
2025-05-01	1397.4	1398.8	1191.2	1200
2025-04-01	1406.7	1411.8	1191.2	1200
2025-03-01	1388.1	1391.1	1191.2	1200
2025-02-01	1371.1	1370.7	1190.6	1200
2025-01-01	1301.9	1293.3	1177.4	1200
2024-12-01	1407.5	1408.5	1177.4	1200
2024-11-01	1426.9	1432.8	1177.4	1200
2024-10-01	1414.2	1418.1	1177.4	1200
2024-09-01	1353.6	1389.6	1177.4	1200
2024-08-01	1310.2	1329.4	1177.4	1200
2024-07-01	1333	1321.7	1204	1200
2024-09-01	1333	1321.7	1204	1200
2024-05-01	1333	1321.7	1204	1200
2024-04-01	1357.2	1349.2	1204	1200
2024-03-01	1375.8	1369.7	1204	1200
2024-02-01	1375.8	1369.7	1204	1200
2024-01-01	1433.3	1431.1	1204	1200
2023-12-01	1433.3	1431.1	1204	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	2025 Gauteng Top Schools Teams (U11)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	LS Fonteine Open 18 Oct 2025 (E)	2025-10-18	2025-10-18	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
3	GDE (D8) Sedibeng West Schools - Teams 2025 (U9+U11)	2025-08-16	2025-08-16	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
4	HS Driehoek Chess Open 2025 (E)	2025-06-14	2025-06-14	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
5	GDE (D8) Sedibeng West Schools Individuals 2025 (U11 Boys)	2025-06-07	2025-06-07	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U12 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3.5	Yes	Analysis
7	Hoerskool Drie Riviere Open 08 March 2025 (E)	2025-03-08	2025-03-08	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
8	Laerskool Vaalpark Open 01 March 25 (E)	2025-03-01	2025-03-01	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
9	Laer Volkskool Open 15 Feb 2025 (E)	2025-02-15	2025-02-15	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U11)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	LS Fonteine Open 18 Oct 2025 (E)	2025-10-18	2025-10-18	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
3	GDE (D8) Sedibeng West Schools - Teams 2025 (U9+U11)	2025-08-16	2025-08-16	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
4	HS Driehoek Chess Open 2025 (E)	2025-06-14	2025-06-14	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
5	GDE (D8) Sedibeng West Schools Individuals 2025 (U11 Boys)	2025-06-07	2025-06-07	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U12 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3.5	Yes	Analysis
7	Hoerskool Drie Riviere Open 08 March 2025 (E)	2025-03-08	2025-03-08	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
8	Laerskool Vaalpark Open 01 March 25 (E)	2025-03-01	2025-03-01	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
9	Laer Volkskool Open 15 Feb 2025 (E)	2025-02-15	2025-02-15	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
10	Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Combined)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3	Yes	Analysis
11	Gauteng Inter-Region at UJ 2024 (U12 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
12	Queens Gambit Chess Open 2024 (D)	2024-11-23	2024-11-23	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
13	Fonteine Open 2024 (D)	2024-10-19	2024-10-19	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
14	NWU Vaal Chess Open 12 Oct 2024 (D)	2024-10-12	2024-10-12	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
15	Gauteng Top Schools 2024 (U11 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
16	Kings Gambit Chess Open 14 Sept 2024 (E)	2024-09-14	2024-09-14	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
17	Sedibeng Chess Open 07 Sept 24 (E)	2024-09-07	2024-09-07	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
18	Gauteng Schools Individuals Finals 2024 (U11 Boys)	2024-08-16	2024-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
19	North School Primary Chess Open 2024 (D)	2024-08-31	2024-08-31	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
20	Sedibeng West District Schools Chess Team's Championships 2024 (U11)	2024-08-12	2024-08-12	Standard	Sedibeng (GSV)	5	3	3	Yes	Analysis
21	Sedibeng West District Schools Individual Chess Championships 2024 (U11 Boys)	2024-07-27	2024-07-27	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
22	Midvaal Winter Classic 13 July 2024 (E)	2024-07-13	2024-07-13	Rapid	Sedibeng (GSV)	7	7	3	Yes	Analysis
23	Vaalpark Primary Chess Open 2024 (D)	2024-04-13	2024-04-13	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
24	HS Drie Riviere Chess Open Section 2024 (D)	2024-03-09	2024-03-09	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
25	NG Kerk Vanderbijlpark Suid 2024 (D)	2024-02-24	2024-02-24	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
26	Laerskool Midvaal Chess Open Section 2024 (D)	2024-02-10	2024-02-10	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
27	2024 Gauteng Inter-Region Chess Championship (U10A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	0.5	Yes	Analysis
28	Dr Pieter Hangelbroek Rapid 2023 (D)	2023-10-28	2023-10-28	Rapid	Sedibeng (GSV)	5	4	2	Yes	Analysis
29	Fonteine Chess Open 2023 (F)	2023-09-02	2023-09-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
30	Overvaal Ope Jul 2023 (E)	2023-07-22	2023-07-22	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
31	Valia's Chess Tournament 2023 (E)	2023-05-06	2023-05-06	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
32	Driehoek Open Chess Tournament 2023 (D)	2023-05-13	2023-05-13	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
33	Overvaal Open 2023 (E)	2023-04-15	2023-04-15	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
34	Hoerskool Drie Riviere Open 2023 (E)	2023-03-11	2023-03-11	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
35	Laerkool Midvaal Chess Open 2023 (E)	2023-01-28	2023-01-28	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
36	2022 South African Junior Team Chess Championships (U10 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	1	Yes	Analysis
37	Dr Peter Hangelbroek Open 2022 (F)	2022-10-29	2022-10-29	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
38	Hoerskool Overvaal 2022 (E)	2022-06-11	2022-06-11	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
39	LS Vryheidsmonument Chess Open 2022 (E)	2022-05-07	2022-05-07	Standard	Sedibeng (GSV)	6	6	5	Yes	Analysis
40	Lux Deo NG Kerk Chess Open 2022 (E)	2022-04-09	2022-04-09	Standard	Sedibeng (GSV)	5	4	4	Yes	Analysis
41	Dirk De Koster Chess Open 2022 (E)	2022-04-23	2022-04-23	Standard	Ekurhuleni (GE)	6	6	6	Yes	Analysis
42	Drie Riviere Open 2022 (E)	2022-03-12	2022-03-12	Standard	Sedibeng (GSV)	6	6	3.5	Yes	Analysis

#	Games	Start				End
1	18	Tournament Drie Riviere Open 2022				Tournament LS Vryheidsmonument Chess Open 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Emanuel, S (Shiloh)				Opponent Lee, A (Ayden)
2	10	Tournament Driehoek Open Chess Tournament 2023				Tournament Fonteine Chess Open 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-09-02	rnd 2	type Standard	result 1
		Opponent Smit, JP (Johannes Petrus)				Opponent Luthango, L (Lakhe)
3	7	Tournament Sedibeng West District Schools Individual Chess Championships 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-07-27	rnd 4	type Standard	result 0.5	date 2024-08-16	rnd 2	type Standard	result 1
		Opponent Tsotetsi, K (Karabo)				Opponent Moyo, W (Wayne)

#	Games	Start				End
1	18	Tournament Drie Riviere Open 2022				Tournament LS Vryheidsmonument Chess Open 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Emanuel, S (Shiloh)				Opponent Lee, A (Ayden)
2	10	Tournament Driehoek Open Chess Tournament 2023				Tournament Fonteine Chess Open 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-09-02	rnd 2	type Standard	result 1
		Opponent Smit, JP (Johannes Petrus)				Opponent Luthango, L (Lakhe)
3	7	Tournament Sedibeng West District Schools Individual Chess Championships 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-07-27	rnd 4	type Standard	result 0.5	date 2024-08-16	rnd 2	type Standard	result 1
		Opponent Tsotetsi, K (Karabo)				Opponent Moyo, W (Wayne)

#	Games	Start				End
1	2	Tournament Dr Pieter Hangelbroek Rapid 2023				Tournament Midvaal Winter Classic 13 July 2024
		date 2023-10-28	rnd 5	type Rapid	result 1	date 2024-07-13	rnd 1	type Rapid	result 1
		Opponent Du Toit, M (Monika)				Opponent Smit, L (Liane)
2	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 7	type Rapid	result 1	date 2024-07-13	rnd 7	type Rapid	result 1
		Opponent Lombaard, W (Wian)				Opponent Lombaard, W (Wian)
3	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 4	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Reddy, M (Matthew)				Opponent Reddy, M (Matthew)

No games found.

#	Games	Start				End

#	Games	Start				End
1	15	Tournament Drie Riviere Open 2022				Tournament LS Vryheidsmonument Chess Open 2022
		date 2022-03-12	rnd 6	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Emanuel, S (Shiloh)				Opponent Lee, A (Ayden)
2	7	Tournament Overvaal Ope Jul 2023				Tournament Fonteine Chess Open 2023
		date 2023-07-22	rnd 1	type Standard	result 1	date 2023-09-02	rnd 2	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Luthango, L (Lakhe)
3	7	Tournament Overvaal Open 2023				Tournament Valia's Chess Tournament 2023
		date 2023-04-15	rnd 4	type Standard	result 1	date 2023-05-06	rnd 5	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Myburgh, A (Alex)

#	Games	Start				End
1	15	Tournament Drie Riviere Open 2022				Tournament LS Vryheidsmonument Chess Open 2022
		date 2022-03-12	rnd 6	type Standard	result 1	date 2022-05-07	rnd 4	type Standard	result 1
		Opponent Emanuel, S (Shiloh)				Opponent Lee, A (Ayden)
2	7	Tournament Overvaal Ope Jul 2023				Tournament Fonteine Chess Open 2023
		date 2023-07-22	rnd 1	type Standard	result 1	date 2023-09-02	rnd 2	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Luthango, L (Lakhe)
3	7	Tournament Overvaal Open 2023				Tournament Valia's Chess Tournament 2023
		date 2023-04-15	rnd 4	type Standard	result 1	date 2023-05-06	rnd 5	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Myburgh, A (Alex)

#	Games	Start				End
1	2	Tournament Dr Pieter Hangelbroek Rapid 2023				Tournament Midvaal Winter Classic 13 July 2024
		date 2023-10-28	rnd 5	type Rapid	result 1	date 2024-07-13	rnd 1	type Rapid	result 1
		Opponent Du Toit, M (Monika)				Opponent Smit, L (Liane)
2	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 7	type Rapid	result 1	date 2024-07-13	rnd 7	type Rapid	result 1
		Opponent Lombaard, W (Wian)				Opponent Lombaard, W (Wian)
3	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 4	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Reddy, M (Matthew)				Opponent Reddy, M (Matthew)

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	Du Toit ,M (Monika)	15	10	141.7	14	9	121.4	1	1	425	0	0	0
1	Du Toit ,M (Monika)	15	1270.3	1411.9	14	1256.2	1391.7	1	1200	1695.3	0	0	0
2	Emanuel ,S (Shiloh)	12	7	70.8	10	7	170	2	0	-425	0	0	0
2	Emanuel ,S (Shiloh)	12	1195.8	1266.6	10	1166.6	1365.8	2	1164.6	770.8	0	0	0
3	Myburgh ,A (Alex)	5	4.5	340	5	4.5	340	0	0	0	0	0	0
3	Myburgh ,A (Alex)	5	1151.7	1491.7	5	1143.5	1491.7	0	0	0	0	0	0
4	Waldick ,F (Frederick)	5	4	255	5	4	255	0	0	0	0	0	0
4	Waldick ,F (Frederick)	5	1197.3	1452.3	5	1194.2	1452.3	0	0	0	0	0	0
5	Swarts ,C (Ciara)	5	2.5	0	5	2.5	0	0	0	0	0	0	0
5	Swarts ,C (Ciara)	5	1276.9	1276.9	5	1288.1	1276.9	0	0	0	0	0	0
6	Gouws ,P (Philip)	5	2	-85	4	2	0	1	0	-425	0	0	0
6	Gouws ,P (Philip)	5	1502.7	1417.7	4	1475.9	1502.7	1	1301.6	1077.7	0	0	0
7	Lee ,A (Ayden)	4	4	425	4	4	425	0	0	0	0	0	0
7	Lee ,A (Ayden)	4	1174.2	1599.2	4	1168.4	1599.2	0	0	0	0	0	0
8	Geyer ,L (Lourens)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
8	Geyer ,L (Lourens)	4	1166.4	1378.9	4	1166.1	1378.9	0	0	0	0	0	0
9	Viviers ,W (Wiaan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
9	Viviers ,W (Wiaan)	3	1205.3	1063.6	3	1193.2	1063.6	0	0	0	0	0	0
10	Roux ,R (Rivan)	3	3	425	3	3	425	0	0	0	0	0	0
10	Roux ,R (Rivan)	3	1198	1623	3	1192.8	1623	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Visser, AF (Aidan)

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Last 24 raw ratings

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Top 3 Streaks

Top 10 opponents most often played

Norms