Chess South Africa Ratings Database

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Personal

Anderson, AP (Aidan Pierre)

Chess SA id

110089428

FIDE id

Date of birth

2010-04-23 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1426.4	1417.9	763	606.6
Raw rating	1419.4	1411.2	763	606.6
Weighted rating	1426.4	1417.9	763	606.6
Weighted performance	1191.5	1187.6	0	0
Floor	946.3	942.4	500	500
K-factor	32	32	40	40
Min/Max rating change allowed	121.3	122.7	309	386.2
Highest rating	1456.5 2023-08-01	1447.6 2023-08-01	1223.7 2022-04-01	1200 2024-02-01
Highest raw rating	1446.3 2023-10-01	1442.4 2023-10-01	763 2024-02-01	606.6 2024-02-01
Highest weighted rating	1446.3 2025-03-01	1442.4 2025-03-01	763 2024-11-01	606.6 2024-11-01
Highest weighted performance	1456.5 2023-08-01	1447.6 2023-08-01	1223.7 2022-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.7	-0.7	0	0
New rating	1425.7	1417.3	763	606.6
Analysis
Rating	1426.4	1417.9	763	606.6
Raw rating	1419.4	1411.2	763	606.6
Weighted rating	1426.4	1417.9	763
Weighted performance	1191.5	1187.6	0
K-factor	32	32	40	40
Floor	946.3	942.4	500	500
Max/Min rating change allowed	121.3	122.7	309	386.2
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	1419.4	1411.2	763	606.6
New weighted rating	1425.7	1417.3	763	606.6
New weighted performance	1191	1187.2	0	0
Temp new rating	1425.7	1417.3	763	606.6
Temp new rating +/-	-0.7	-0.7	0	0
Final new rating +/-	-0.7	-0.7	0	0
New rating	1425.7	1417.3	763	606.6
New K-factor	32	32	40	40
New floor	946.3	942.4	500	500

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	10	10	0
	26	26	0
	46	39	7
	17	17	0
History	289	282	7

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
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	5	2	40	-85	1447.7	1362.7
Standard	5	2	40	-85	1447.7	1362.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	268	160	59.7	82.5	1126.1	1208.6
Standard	261	156	59.77	83	1124.9	1208
Rapid	7	4	57.14	60.7	1171	1231.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1419.4	1411.2	763	606.6
2025-09-01	1419.4	1411.2	763	606.6
2025-08-01	1428.6	1420.4	763	606.6
2025-07-01	1428.6	1420.4	763	606.6
2025-06-01	1428.6	1420.4	763	606.6
2025-05-01	1428.6	1420.4	763	606.6
2025-04-01	1428.6	1420.4	763	606.6
2025-03-01	1428.6	1420.4	763	606.6
2025-02-01	1428.5	1420.4	763	606.6
2025-01-01	1427.2	1418.4	763	606.6
2024-12-01	1427.2	1418.4	763	606.6
2024-11-01	1427.2	1418.4	763	606.6
2024-10-01	1427.2	1418.4	763	606.6
2024-09-01	1427.2	1418.4	763	606.6
2024-08-01	1427.2	1418.4	763	606.6
2024-07-01	1427.2	1418.4	763	606.6
2024-06-01	1427.2	1418.4	763	606.6
2024-08-01	1419.5	1408.5	763	606.6
2024-04-01	1419.5	1408.5	763	606.6
2024-03-01	1419.5	1408.5	763	606.6
2024-02-01	1419.5	1408.5	763	606.6
2024-01-01	1446.3	1442.4	763	606.6
2023-12-01	1446.3	1442.4	763	606.6
2023-11-01	1446.3	1442.4	763	606.6

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 Tshwane South School District CLOSED League Championship (U15A)	2025-08-16	2025-08-16	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane South School District CLOSED League Championship (U15A)	2025-08-16	2025-08-16	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2024 Tshwane South School District CLOSED Individual Championships (U15 Mixed)	2024-05-11	2024-05-11	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2024 Tshwane Chess OPEN Registration Tournament (C2)	2024-01-27	2024-01-27	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
4	2023 Etienne Lewis Closed Tournament (U14)	2023-08-25	2023-08-27	Standard	Tshwane (GTP)	7	6	5	Yes	Analysis
5	2023 Menlo Open Tournament (C)	2023-07-22	2023-07-22	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
6	2023 Elize Steenkamp Open Tournament (B)	2023-06-16	2023-06-16	Standard	Tshwane (GTP)	6	5	2.5	Yes	Analysis
7	2023 Tshwane South School District CLOSED Individual Championships (U13 Open)	2023-04-22	2023-04-22	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
8	2023 Tshwane Chess Open Registration Tournament (B2)	2023-01-28	2023-01-28	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
9	2022 South African Junior Team Chess Championships (U14 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
10	2022 Etienne Lewis (U14 Open)	2022-09-02	2022-09-04	Standard	Tshwane (GTP)	7	7	5	Yes	Analysis
11	2022 Jacaranda Round Robin (E)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
12	2022 Menlo Open Tournament (C)	2022-07-23	2022-07-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	2022 Blou Bul Open (C)	2022-06-25	2022-06-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
14	D4 Individuals 2022 (U13 Open)	2022-04-23	2022-04-23	Rapid	Tshwane (GTP)	7	7	4	Yes	Analysis
15	2022 Gauteng Interregion (U12 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
16	2022 Tshwane Chess Open Registration Tournament (C1)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
17	2021 Etienne Lewis Closed Trials (U12 Open)	2021-09-24	2021-09-26	Standard	Nelson Mandela Bay (ENM)	7	7	5	Yes	Analysis
18	2021 Alekhine Open (C)	2021-08-14	2021-08-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
19	2021 Lubowski Open Tournament (B)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
20	2020 Registration Tournament (B)	2020-01-25	2020-01-25	Standard	Tshwane (GTP)	5	4	0.5	Yes	Analysis
21	2019 South African Junior Team Championships (U10A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
22	2019 TC SAJCC Prep Tournament (A)	2019-11-30	2019-11-30	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
23	2019 Etienne Lewis Trials (U10 Boys)	2019-08-30	2019-09-01	Standard	Tshwane (GTP)	7	7	4.5	Yes	Analysis
24	2019 Menlo Open (B)	2019-07-13	2019-07-13	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
25	2019 D4 Tshwane South Schools League Team Finals (U11)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
26	2019 Swartkop Open (C)	2019-06-15	2019-06-15	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
27	2019 Lubowski Open Tournament (C)	2019-05-11	2019-05-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
28	2019 Capablanca Chess Festival (C)	2019-04-19	2019-04-21	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
29	2019 Waterkloof Open (C)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
30	2019 D4 Individual Finals (U9 Mixed)	2019-03-09	2019-03-09	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
31	2019 Blou Bul (C)	2019-02-16	2019-02-16	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
32	2019 Constantia Park Open (C)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
33	2019 Tshwane Chess Registration Tournament (C)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
34	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
35	2018 Etienne Lewis Trials (U10 Boys)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	5	Yes	Analysis
36	2018 Alekhine Open (C)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	3	Yes	Analysis
37	2018 Swartkop Open (C)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
38	2018 Lubowski Open (C)	2018-05-12	2018-05-12	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
39	2018 Chris Greyling Open (D)	2018-04-21	2018-04-21	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
40	2018 Capablanca Swiss (D)	2018-04-27	2018-04-27	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
41	2018 South African Junior Closed Chess Championships (U8 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	6	Yes	Analysis
42	2018 Waterkloof Open (D)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
43	2018 Crawford Open (D)	2018-03-24	2018-03-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
44	2018 Piet Robbertse Chess Tournament (D)	2018-02-03	2018-02-03	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
45	2018 Constantia Park Open (D)	2018-02-10	2018-02-10	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
46	2018 Blou Bul Open (D)	2018-02-17	2018-02-17	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
47	South African Junior Wildcard Championships 2017 (U8 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
48	South African Junior Team Championships 2017 (U8B+U8 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	5	Yes	Analysis

#	Games	Start				End
1	11	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Mostert, M (Mj)				Opponent Carney, L (Luzelle)
2	7	Tournament 2022 Etienne Lewis				Tournament 2022 South African Junior Team Chess Championships
		date 2022-09-03	rnd 3	type Standard	result 1	date 2022-12-04	rnd 2	type Standard	result 1
		Opponent Nkwadi, K (Karabo)				Opponent Maharaj, A (Arya)
3	7	Tournament 2019 D4 Individual Finals				Tournament 2019 Capablanca Chess Festival
		date 2019-03-09	rnd 1	type Standard	result 1	date 2019-04-19	rnd 2	type Standard	result 1
		Opponent Niehaus, J (Johannes)				Opponent Iyman, J (Jaelene)

#	Games	Start				End
1	11	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Mostert, M (Mj)				Opponent Carney, L (Luzelle)
2	7	Tournament 2022 Etienne Lewis				Tournament 2022 South African Junior Team Chess Championships
		date 2022-09-03	rnd 3	type Standard	result 1	date 2022-12-04	rnd 2	type Standard	result 1
		Opponent Nkwadi, K (Karabo)				Opponent Maharaj, A (Arya)
3	7	Tournament 2019 D4 Individual Finals				Tournament 2019 Capablanca Chess Festival
		date 2019-03-09	rnd 1	type Standard	result 1	date 2019-04-19	rnd 2	type Standard	result 1
		Opponent Niehaus, J (Johannes)				Opponent Iyman, J (Jaelene)

#	Games	Start				End
1	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 1	type Rapid	result 1	date 2022-04-23	rnd 2	type Rapid	result 1
		Opponent Van Der Merwe, R (Ruben)				Opponent Bloem, R (Reinhardt)
2	1	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 6	type Rapid	result 1	date 2022-04-23	rnd 6	type Rapid	result 1
		Opponent Stoltz, J (Jenog)				Opponent Stoltz, J (Jenog)
3	1	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 4	type Rapid	result 1	date 2022-04-23	rnd 4	type Rapid	result 1
		Opponent Gounder, A (Arun)				Opponent Gounder, A (Arun)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Mahlangu, T (Thabang)				Opponent Carney, L (Luzelle)
2	7	Tournament 2022 Etienne Lewis				Tournament 2022 South African Junior Team Chess Championships
		date 2022-09-03	rnd 3	type Standard	result 1	date 2022-12-04	rnd 2	type Standard	result 1
		Opponent Nkwadi, K (Karabo)				Opponent Maharaj, A (Arya)
3	7	Tournament 2019 D4 Individual Finals				Tournament 2019 Capablanca Chess Festival
		date 2019-03-09	rnd 1	type Standard	result 1	date 2019-04-19	rnd 2	type Standard	result 1
		Opponent Niehaus, J (Johannes)				Opponent Iyman, J (Jaelene)

#	Games	Start				End
1	9	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Mahlangu, T (Thabang)				Opponent Carney, L (Luzelle)
2	7	Tournament 2022 Etienne Lewis				Tournament 2022 South African Junior Team Chess Championships
		date 2022-09-03	rnd 3	type Standard	result 1	date 2022-12-04	rnd 2	type Standard	result 1
		Opponent Nkwadi, K (Karabo)				Opponent Maharaj, A (Arya)
3	7	Tournament 2019 D4 Individual Finals				Tournament 2019 Capablanca Chess Festival
		date 2019-03-09	rnd 1	type Standard	result 1	date 2019-04-19	rnd 2	type Standard	result 1
		Opponent Niehaus, J (Johannes)				Opponent Iyman, J (Jaelene)

#	Games	Start				End
1	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 1	type Rapid	result 1	date 2022-04-23	rnd 2	type Rapid	result 1
		Opponent Van Der Merwe, R (Ruben)				Opponent Bloem, R (Reinhardt)
2	1	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 6	type Rapid	result 1	date 2022-04-23	rnd 6	type Rapid	result 1
		Opponent Stoltz, J (Jenog)				Opponent Stoltz, J (Jenog)
3	1	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 4	type Rapid	result 1	date 2022-04-23	rnd 4	type Rapid	result 1
		Opponent Gounder, A (Arun)				Opponent Gounder, A (Arun)

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	Van Loggerenberg ,L (Logan)	7	2	-182.1	7	2	-182.1	0	0	0	0	0	0
1	Van Loggerenberg ,L (Logan)	7	1235.4	1053.3	7	1208.3	1053.3	0	0	0	0	0	0
2	Van Nieuwenhuizen ,BF (Bernard Francois)	5	5	425	5	5	425	0	0	0	0	0	0
2	Van Nieuwenhuizen ,BF (Bernard Francois)	5	1059.2	1484.2	5	1051.3	1484.2	0	0	0	0	0	0
3	Steyn ,A (Amelia)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Steyn ,A (Amelia)	3	1298.2	1439.9	3	1287	1439.9	0	0	0	0	0	0
4	Meades ,RA (Ruben Abraham)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Meades ,RA (Ruben Abraham)	3	1281.8	1423.5	3	1252.9	1423.5	0	0	0	0	0	0
5	Bogaard ,FK (Franco Konrad)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
5	Bogaard ,FK (Franco Konrad)	3	1091.6	1091.6	3	1075.9	1091.6	0	0	0	0	0	0
6	Amrouni ,A (Alexia Shakira)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
6	Amrouni ,A (Alexia Shakira)	3	1439	1297.3	3	1432	1297.3	0	0	0	0	0	0
7	Snyders ,M (Meya)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
7	Snyders ,M (Meya)	3	1399.2	1257.6	3	1370	1257.6	0	0	0	0	0	0
8	Van Rooyen ,M (Marcel)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
8	Van Rooyen ,M (Marcel)	3	1019.8	1161.4	3	999.6	1161.4	0	0	0	0	0	0
9	Radia ,D (Diya)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
9	Radia ,D (Diya)	3	1042.4	1184.1	3	1042	1184.1	0	0	0	0	0	0
10	Rautenbach ,H (Helen Christine)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
10	Rautenbach ,H (Helen Christine)	3	1033.4	1316.8	3	1023	1316.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Anderson, AP (Aidan Pierre)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms