Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jansen, A (Alexia)

Chess SA id

2120134213

FIDE id

Date of birth

2012-01-08 (U14)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1383.5

Item	Main	Standard	Rapid	Blitz
Rating	1449.8	1452.1	1218.4	1200
Raw rating	1449.8	1452.1	1218.4	1200
Weighted rating	1417.5	1416.7	1218.4	1200
Weighted performance	1407.4	1404	0	0
Floor	977.5	982.8	718.4	700
K-factor	32	32	36	36
Min/Max rating change allowed	116.2	115.8	161.5	165.8
Highest rating	1477.5 2025-09-01	1482.8 2025-09-01	1270.2 2022-04-01	1200 2018-10-01
Highest raw rating	1477.5 2025-09-01	1482.8 2025-09-01	1218.4 2024-03-01	1200 2024-03-01
Highest weighted rating	1427.4 2025-06-01	1426.1 2025-06-01	1218.4 2025-02-01	1200 2018-10-01
Highest weighted performance	1458.1 2025-09-01	1454.3 2025-09-01	1270.2 2022-04-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1449.8	1452.1	1218.4	1200
Analysis
Rating	1449.8	1452.1	1218.4	1200
Raw rating	1449.8	1452.1	1218.4	1200
Weighted rating	1417.5	1416.7	1218.4
Weighted performance	1407.4	1404	0
K-factor	32	32	36	36
Floor	977.5	982.8	718.4	700
Max/Min rating change allowed	116.2	115.8	161.5	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	1449.8	1452.1	1218.4	1200
New weighted rating	1421.2	1420.8	1218.4	1200
New weighted performance	1406.9	1403.5	0	0
Temp new rating	1449.8	1452.1	1218.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1449.8	1452.1	1218.4	1200
New K-factor	32	32	36	36
New floor	977.5	982.8	718.4	700

Item	Main	Standard	Rapid
	0	0	0
	52	52	0
	55	55	0
	42	42	0
	54	47	7
	25	25	0
History	228	221	7

Games since
	Main 107	Standard 107		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	1652		570		207
Female	248		96		40
U14	247		79		25
U14 Female	50		17		7
Standard
	RSA		Province		Region
Overall	1545		570		213
Female	242		98		40
U14	240		78		27
U14 Female	54		18		8
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	52	26	50	0	1406.2	1406.2
Standard	52	26	50	0	1406.2	1406.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	228	130	57.02	59.6	1266.7	1326.3
Standard	221	126	57.01	59.6	1268.1	1327.7
Rapid	7	4	57.14	60.7	1223.2	1283.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1449.8	1452.1	1218.4	1200
2025-09-01	1477.5	1482.8	1218.4	1200
2025-08-01	1406.1	1404	1218.4	1200
2025-07-01	1401.4	1399	1218.4	1200
2025-06-01	1414.7	1413.5	1218.4	1200
2025-05-01	1406.4	1404.4	1218.4	1200
2025-04-01	1406.4	1404.4	1218.4	1200
2025-03-01	1406.4	1404.4	1218.4	1200
2025-02-01	1418.4	1418	1218.4	1200
2025-01-01	1425.6	1426.1	1218.4	1200
2024-12-01	1422	1423.5	1218.4	1200
2024-11-01	1419.6	1421.9	1218.4	1200
2024-10-01	1419.6	1423.8	1218.4	1200
2024-09-01	1383.8	1380.6	1218.4	1200
2024-08-01	1427.4	1425.4	1218.4	1200
2024-07-01	1427.4	1425.4	1218.4	1200
2024-06-01	1427.4	1425.4	1218.4	1200
2024-08-01	1382.7	1375.7	1218.4	1200
2024-04-01	1407.7	1402.9	1218.4	1200
2024-03-01	1407.7	1402.9	1218.4	1200
2024-02-01	1382.5	1378.1	1218.4	1200
2024-01-01	1321.9	1307.7	1218.4	1200
2023-12-01	1321.9	1307.7	1218.4	1200
2023-11-01	1321.9	1307.7	1218.4	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 Alekhine Open (C)	2025-09-06	2025-09-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2025 Midstream Open Chess Tournament (C)	2025-08-25	2025-08-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2025 Tshwane South School District CLOSED League Championship (U13A)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
4	2025 Etienne Lewis Closed Chess Tournament (U14)	2025-08-08	2025-08-10	Standard	Tshwane (GTP)	7	7	4.5	Yes	Analysis
5	2025 Elise Steenkamp Open Chess Tournament (Queen)	2025-06-14	2025-06-16	Standard	Tshwane (GTP)	7	7	1	Yes	Analysis
6	2025 Tshwane South School District Individual Finals (D4) (U13 Girls)	2025-05-10	2025-05-10	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
7	2025 Silver Lakes Chess Club Open Chess Tournament (C)	2025-05-03	2025-05-03	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
8	Constantiapark Open 2025 (C)	2025-02-15	2025-02-15	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
9	2025 Blou Bul Open Chess Tournament (C)	2025-02-08	2025-02-08	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
10	2025 Tshwane Chess OPEN Registration Tournament (B3)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Alekhine Open (C)	2025-09-06	2025-09-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2025 Midstream Open Chess Tournament (C)	2025-08-25	2025-08-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	2025 Tshwane South School District CLOSED League Championship (U13A)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
4	2025 Etienne Lewis Closed Chess Tournament (U14)	2025-08-08	2025-08-10	Standard	Tshwane (GTP)	7	7	4.5	Yes	Analysis
5	2025 Elise Steenkamp Open Chess Tournament (Queen)	2025-06-14	2025-06-16	Standard	Tshwane (GTP)	7	7	1	Yes	Analysis
6	2025 Tshwane South School District Individual Finals (D4) (U13 Girls)	2025-05-10	2025-05-10	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
7	2025 Silver Lakes Chess Club Open Chess Tournament (C)	2025-05-03	2025-05-03	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
8	Constantiapark Open 2025 (C)	2025-02-15	2025-02-15	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
9	2025 Blou Bul Open Chess Tournament (C)	2025-02-08	2025-02-08	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
10	2025 Tshwane Chess OPEN Registration Tournament (B3)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
11	Gauteng Inter-Region at UJ 2024 (U14 Girls)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
12	Lardies Ope 2024 (B)	2024-10-26	2024-10-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	2024 Tshwane Chess Club Clash (Ladies)	2024-10-12	2024-10-12	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis
14	2024 Etienne Lewis (U14)	2024-08-30	2024-09-01	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
15	Gauteng Schools Individuals Finals 2024 (U13 Girls)	2024-08-16	2024-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
16	2024 Alekhine Open Chess Tournament (B)	2024-08-09	2024-08-10	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
17	2024 Tshwane South School District CLOSED Individual Championships (U13 Girls)	2024-05-11	2024-05-11	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
18	2024 Silver Lakes Open Chess Tournament (D1)	2024-04-21	2024-04-21	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
19	2024 Constantiapark Open (D1)	2024-02-17	2024-02-17	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
20	2024 Tshwane Chess OPEN Registration Tournament (D2)	2024-01-27	2024-01-27	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
21	2024 Gauteng Inter-Region Chess Championship (U12 Girls B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	4	Yes	Analysis
22	2023 Etienne Lewis Closed Tournament (U12)	2023-08-25	2023-08-27	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
23	2023 Tshwane South School District CLOSED League Championship (U11)	2023-07-29	2023-07-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
24	2023 Lubowski Open Tournament (D)	2023-06-24	2023-06-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
25	Gauteng Schools Individual Finals 2023 (U11 Girls)	2023-05-26	2023-05-26	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
26	2023 Tshwane South School District CLOSED Individual Championships (U11 Girls)	2023-04-22	2023-04-22	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
27	2023 Afrikaans Ho�r Seunskool Open Chess Tournament (D1)	2023-03-04	2023-03-04	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
28	Laerskool Constantiapark Open Chess Tournament 2023 (U12)	2023-02-18	2023-02-18	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
29	2023 Tshwane Chess Open Registration Tournament (D1)	2023-01-28	2023-01-28	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
30	Lardies Tournament 2022 (U12)	2022-10-29	2022-10-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
31	Ladies Tournament 9 August 2022 (Rook)	2022-08-09	2022-08-09	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
32	D4 Play Offs 2022 (U11)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
33	2022 Menlo Open Tournament (D)	2022-07-23	2022-07-23	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
34	2022 Blou Bul Open (D)	2022-06-25	2022-06-26	Standard	Tshwane (GTP)	5	3	1.5	Yes	Analysis
35	D4 Individuals 2022 (U11 Girls)	2022-04-23	2022-04-23	Rapid	Tshwane (GTP)	7	7	4	Yes	Analysis
36	2022 Lubowski Open Tournament (D)	2022-04-09	2022-04-10	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
37	2022 Chris Greyling Open (D)	2022-03-12	2022-03-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
38	CP Ope 2022 (D1)	2022-02-19	2022-02-19	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
39	2022 Gauteng Interregion (U10 Girls)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
40	2022 Tshwane Chess Open Registration Tournament (D1)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
41	2021 Lardies Ope (E)	2021-10-30	2021-10-30	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
42	2021 Etienne Lewis Closed Trials (U10 Girls)	2021-09-24	2021-09-26	Standard	Nelson Mandela Bay (ENM)	7	6	4	Yes	Analysis
43	2021 Alekhine Open (E)	2021-08-14	2021-08-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
44	2021 Chris Greyling Open Tournament (E)	2021-05-08	2021-05-08	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
45	2021 Lubowski Open Tournament (E)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament Gauteng Inter-Region at UJ 2024				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2024-12-07	rnd 2	type Standard	result 0.5	date 2025-01-25	rnd 4	type Standard	result 1
		Opponent Zulu, T (Thandoluhle)				Opponent Chadalavada, B (Bhaarghavarama)
2	7	Tournament Gauteng Schools Individual Finals 2023				Tournament 2023 Lubowski Open Tournament
		date 2023-05-26	rnd 1	type Standard	result 1	date 2023-06-24	rnd 2	type Standard	result 1
		Opponent Mantjie, A (Amanda)				Opponent Haupt, A (Abigail)
3	6	Tournament 2023 Afrikaans Ho�r Seunskool Open Chess Tournament				Tournament 2023 Tshwane South School District CLOSED Individual Championships
		date 2023-03-04	rnd 4	type Standard	result 1	date 2023-04-22	rnd 4	type Standard	result 0.5
		Opponent Smith, S (Shandler)				Opponent Padayachy, V (Vidya)

#	Games	Start				End
1	7	Tournament Gauteng Inter-Region at UJ 2024				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2024-12-07	rnd 2	type Standard	result 0.5	date 2025-01-25	rnd 4	type Standard	result 1
		Opponent Zulu, T (Thandoluhle)				Opponent Chadalavada, B (Bhaarghavarama)
2	7	Tournament Gauteng Schools Individual Finals 2023				Tournament 2023 Lubowski Open Tournament
		date 2023-05-26	rnd 1	type Standard	result 1	date 2023-06-24	rnd 2	type Standard	result 1
		Opponent Mantjie, A (Amanda)				Opponent Haupt, A (Abigail)
3	6	Tournament 2023 Afrikaans Ho�r Seunskool Open Chess Tournament				Tournament 2023 Tshwane South School District CLOSED Individual Championships
		date 2023-03-04	rnd 4	type Standard	result 1	date 2023-04-22	rnd 4	type Standard	result 0.5
		Opponent Smith, S (Shandler)				Opponent Padayachy, V (Vidya)

#	Games	Start				End
1	3	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 1	type Rapid	result 1	date 2022-04-23	rnd 3	type Rapid	result 1
		Opponent Grundling, K (Kailey)				Opponent Struwig, K (Karien)
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 Gruenenfelder, E (Ellie)				Opponent Gruenenfelder, E (Ellie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Gauteng Schools Individual Finals 2023				Tournament 2023 Lubowski Open Tournament
		date 2023-05-26	rnd 1	type Standard	result 1	date 2023-06-24	rnd 2	type Standard	result 1
		Opponent Mantjie, A (Amanda)				Opponent Haupt, A (Abigail)
2	5	Tournament 2023 Afrikaans Ho�r Seunskool Open Chess Tournament				Tournament 2023 Tshwane South School District CLOSED Individual Championships
		date 2023-03-04	rnd 4	type Standard	result 1	date 2023-04-22	rnd 3	type Standard	result 1
		Opponent Smith, S (Shandler)				Opponent Van Der Merwe, L (Liahne Lizl)
3	5	Tournament 2022 Tshwane Chess Open Registration Tournament				Tournament CP Ope 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-02-19	rnd 3	type Standard	result 1
		Opponent Naude, M (Michael)				Opponent Conradie, D (Dirk)

#	Games	Start				End
1	7	Tournament Gauteng Schools Individual Finals 2023				Tournament 2023 Lubowski Open Tournament
		date 2023-05-26	rnd 1	type Standard	result 1	date 2023-06-24	rnd 2	type Standard	result 1
		Opponent Mantjie, A (Amanda)				Opponent Haupt, A (Abigail)
2	5	Tournament 2023 Afrikaans Ho�r Seunskool Open Chess Tournament				Tournament 2023 Tshwane South School District CLOSED Individual Championships
		date 2023-03-04	rnd 4	type Standard	result 1	date 2023-04-22	rnd 3	type Standard	result 1
		Opponent Smith, S (Shandler)				Opponent Van Der Merwe, L (Liahne Lizl)
3	5	Tournament 2022 Tshwane Chess Open Registration Tournament				Tournament CP Ope 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-02-19	rnd 3	type Standard	result 1
		Opponent Naude, M (Michael)				Opponent Conradie, D (Dirk)

#	Games	Start				End
1	3	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 1	type Rapid	result 1	date 2022-04-23	rnd 3	type Rapid	result 1
		Opponent Grundling, K (Kailey)				Opponent Struwig, K (Karien)
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 Gruenenfelder, E (Ellie)				Opponent Gruenenfelder, E (Ellie)

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	Pillay ,V (Verana)	7	4.5	121.4	6	4.5	212.5	1	0	-425	0	0	0
1	Pillay ,V (Verana)	7	1256.7	1378.1	6	1257.8	1469.2	1	1200	831.7	0	0	0
2	Padayachy ,V (Vidya)	5	2	-85	5	2	-85	0	0	0	0	0	0
2	Padayachy ,V (Vidya)	5	1213.2	1128.2	5	1200	1128.2	0	0	0	0	0	0
3	Yang ,S (Selina)	5	0	-425	4	0	-425	1	0	-425	0	0	0
3	Yang ,S (Selina)	5	1224.5	799.5	4	1166.5	799.5	1	1200	799.5	0	0	0
4	Minny ,O (Oban)	4	0	-425	4	0	-425	0	0	0	0	0	0
4	Minny ,O (Oban)	4	1302	877	4	1285	877	0	0	0	0	0	0
5	Boshoff ,R (Reinhardt)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
5	Boshoff ,R (Reinhardt)	4	1302.2	1089.8	4	1293.1	1089.8	0	0	0	0	0	0
6	Van Rooyen ,D (Dandre)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
6	Van Rooyen ,D (Dandre)	4	1294.5	1507	4	1287.6	1507	0	0	0	0	0	0
7	Westermann ,L (Liezl)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
7	Westermann ,L (Liezl)	3	1368.9	1510.5	3	1367.1	1510.5	0	0	0	0	0	0
8	Naude ,J (Johan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
8	Naude ,J (Johan)	3	1437.2	1295.6	3	1455.6	1295.6	0	0	0	0	0	0
9	Yang ,JD (Daniel)	3	0	-425	3	0	-425	0	0	0	0	0	0
9	Yang ,JD (Daniel)	3	1605.5	1180.5	3	1600.9	1180.5	0	0	0	0	0	0
10	Buchner ,E (Emil)	3	0	-425	3	0	-425	0	0	0	0	0	0
10	Buchner ,E (Emil)	3	1143	718	3	1129.6	718	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Jansen, A (Alexia)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms