Chess South Africa Ratings Database

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Personal

Lukas, J (Janeva)

Chess SA id

2120112287

FIDE id

Date of birth

2012-08-21 (U14)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

19.7

Junior GPX Points

1222.8

Item	Main	Standard	Rapid	Blitz
Rating	1394.4	1427.3	1340.7	1200
Raw rating	1380.8	1427.3	1326.4	1200
Weighted rating	1394.4	1426.2	1340.7	1200
Weighted performance	1206.9	1195.2	1090	0
Floor	955	953.2	995.2	700
K-factor	32	32	32	36
Min/Max rating change allowed	128.2	119.9	138.5	165.8
Highest rating	1486.2 2022-06-01	1453.2 2024-04-01	1495.2 2023-03-01	1200 2018-10-01
Highest raw rating	1455 2023-06-01	1453.2 2024-04-01	1495.2 2023-03-01	1200 2024-03-01
Highest weighted rating	1455 2023-11-01	1453.2 2024-07-01	1495.2 2023-09-01	1200 2018-10-01
Highest weighted performance	1486.2 2022-06-01	1451.1 2022-08-01	1480.7 2022-05-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.9	0	-1	0
New rating	1393.5	1427.3	1339.6	1200
Analysis
Rating	1394.4	1427.3	1340.7	1200
Raw rating	1380.8	1427.3	1326.4	1200
Weighted rating	1394.4	1426.2	1340.7
Weighted performance	1206.9	1195.2	1090
K-factor	32	32	32	36
Floor	955	953.2	995.2	700
Max/Min rating change allowed	128.2	119.9	138.5	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	1380.8	1427.3	1326.4	1200
New weighted rating	1393.5	1426	1339.6	1200
New weighted performance	1206.5	1194.7	1089.5	0
Temp new rating	1393.5	1427.3	1339.6	1200
Temp new rating +/-	-0.9	0	-1	0
Final new rating +/-	-0.9	0	-1	0
New rating	1393.5	1427.3	1339.6	1200
New K-factor	32	32	32	36
New floor	955	953.2	995.2	700

Item	Main	Standard	Rapid
	0	0	0
	15	10	5
	35	23	12
	42	16	26
	51	32	19
	10	0	10
History	213	118	95

Games since
	Main 62	Standard 33		Rapid 29		Blitz 0
Gender	Female
Age group	U14
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2228		679		105
Female	379		147		26
U14	358		117		18
U14 Female	87		38		6
Standard
	RSA		Province		Region
Overall	1776		471		61
Female	289		96		14
U14	279		86		11
U14 Female	65		25		5
Rapid
	RSA		Province		Region
Overall	787		408		64
Female	125		70		16
U14	162		90		16
U14 Female	37		21		6
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	15	8	53.33	28.3	1282.6	1311
Standard	10	6	60	85	1247.5	1332.5
Rapid	5	2	40	-85	1352.9	1267.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	213	133	62.44	105.8	1223	1328.8
Standard	118	72	61.02	93.6	1216.2	1309.9
Rapid	95	61	64.21	120.8	1231.5	1352.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1380.8	1427.3	1326.4	1200
2025-09-01	1380.8	1427.3	1326.4	1200
2025-08-01	1396.8	1427.3	1348.9	1200
2025-07-01	1396.8	1427.3	1348.9	1200
2025-06-01	1396.8	1427.3	1348.9	1200
2025-05-01	1396.8	1427.3	1348.9	1200
2025-04-01	1396.8	1426.8	1348.9	1200
2025-03-01	1396.6	1426.2	1348.9	1200
2025-02-01	1397	1425.7	1348.9	1200
2025-01-01	1376.8	1391.1	1337.2	1200
2024-12-01	1404	1424.4	1337.2	1200
2024-11-01	1404	1424.4	1337.2	1200
2024-10-01	1404	1424.4	1337.2	1200
2024-09-01	1404	1424.4	1337.2	1200
2024-08-01	1404	1424.4	1337.2	1200
2024-07-01	1404	1424.4	1337.2	1200
2024-06-01	1404	1424.4	1337.2	1200
2024-08-01	1414.4	1453.2	1337.2	1200
2024-04-01	1414.4	1453.2	1337.2	1200
2024-03-01	1359.8	1436.9	1337.2	1200
2024-02-01	1367.8	1436.9	1335.9	1200
2024-01-01	1370.5	1436.9	1336.2	1200
2023-12-01	1370.5	1436.9	1336.2	1200
2023-11-01	1370.5	1436.9	1336.2	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	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U13 Girls)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U13 Girls)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
4	Mzansi Interprovincial Youth Chess Championships 2024 (U14 Girls Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3	Yes	Analysis
5	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
6	Western Cape Inter Region Cup 2024 (U14 Girls)	2024-03-23	2024-03-24	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
7	Cape Winelands Schools - Prestige 2024 (U13 Girls)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
8	Cape Winelands Schools - PS Trials 1 2024 (U13 Girls)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
9	Cape Winelands - Marie Delport Memorial 2024 (U14)	2024-01-27	2024-01-27	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
10	Ashton Skaakmat Rapid 2023 (U11)	2023-11-18	2023-11-18	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
11	Bonnievale Open Rapid 2023 (U12)	2023-10-21	2023-10-21	Rapid	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
12	CW Top Schools 2023 (U7-U11 Mixed + U11 Girls)	2023-08-26	2023-08-26	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
13	Langeberg Top Schools 2023 (U7-U13 Mix)	2023-07-29	2023-07-29	Rapid	Cape Winelands (WCW)	5	4	2	Yes	Analysis
14	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
15	Cape Winelands Schools Prestige 2023 (U11 Girls)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
16	Langeberg Schools Chess Trials 2023 (U11 Girls)	2023-02-11	2023-02-11	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
17	Cape Winelands Schools Chess - Trials 1 2023 (U11 Girls)	2023-02-18	2023-02-18	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
18	Western Cape Top Schools 2022 (U11 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
19	Cape Winelands Schools Top Schools 2022 (U7-U11 Mixed)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
20	Brave Knights Chess Festival 2022 (B)	2022-07-30	2022-07-30	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
21	McGregor Open 2022 (B)	2022-06-11	2022-06-11	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
22	Western Cape Schools 2022 (U11 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
23	Strategema Chess Festival 2022 (U11 Girls)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
24	McGregor Chess Freedom Day Rapid 2022 (U11)	2022-04-27	2022-04-27	Rapid	Cape Winelands (WCW)	4	4	4	Yes	Analysis
25	McGregor Kings Chess Festival 2022 (U11)	2022-04-09	2022-04-09	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
26	Cape Winelands Schools 2022 (U11 Girls)	2022-03-12	2022-03-12	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
27	Lanfeberg Schools Chess Trials 2022 (U11)	2022-02-26	2022-02-26	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
28	Western Cape Schools 2021 (U9 Girls)	2021-10-23	2021-10-23	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
29	Cape Winelands Schools Trials 2021 (U9+U11 Girls)	2021-10-16	2021-10-16	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
30	Robertson Chess 2020 (U9)	2020-03-07	2020-03-07	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
31	Cape Winelands Schools Trials 1 2020 (U9 Girls)	2020-02-08	2020-02-08	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
32	2019 Wild Card Chess Championship (U8 Open+Girls)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
33	2019 South African Junior Team Championships (U10D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	5	Yes	Analysis
34	Western Cape Schools Kings & Queens 2019 (Girls)	2019-10-12	2019-10-12	Rapid	West Coast (WCU)	5	4	2.5	Yes	Analysis
35	Robertson Strategema 2019 (U7)	2019-10-05	2019-10-05	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
36	2019 WP Youth Open (D)	2019-07-13	2019-07-13	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
37	Cape Winelands Schools - Top Schools 2019 (U9 Mix)	2019-07-27	2019-07-27	Rapid	Cape Winelands (WCW)	3	3	2	Yes	Analysis
38	South African Schools Individuals Chess Championships 2019 (U7+U9 Girls)	2019-06-18	2019-06-21	Standard	Frances Baard (NCF)	7	6	1.5	Yes	Analysis
39	Stellenberg Youth Chess Championship 2019 (E)	2019-05-01	2019-05-01	Standard	Cape Town (WCT)	5	0	0	No	Analysis
40	Western Cape Schools Individuals 2019 (U7 Girls)	2019-05-18	2019-05-19	Standard	Eden (WEG)	7	7	4	Yes	Analysis
41	Cape Winelands Open 2019 (U8)	2019-04-27	2019-04-27	Standard	Cape Winelands (WCW)	6	6	1	Yes	Analysis

#	Games	Start				End
1	14	Tournament Western Cape Top Schools 2022				Tournament Cape Winelands Schools Prestige 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Louw, X (Xander)				Opponent Philander, J (Jadelynne)
2	8	Tournament Lanfeberg Schools Chess Trials 2022				Tournament McGregor Kings Chess Festival 2022
		date 2022-02-26	rnd 5	type Rapid	result 1	date 2022-04-09	rnd 2	type Rapid	result 1
		Opponent Plaatjies, M (Miah Caren)				Opponent Visser, K (Katie)
3	7	Tournament Western Cape Schools 2022				Tournament Brave Knights Chess Festival 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-07-30	rnd 1	type Standard	result 1
		Opponent Jara, I (Iviwe)				Opponent Baadjies, A (Ashley-Dean)

#	Games	Start				End
1	11	Tournament 2019 Wild Card Chess Championship				Tournament Western Cape Schools 2022
		date 2020-01-11	rnd 5	type Standard	result 0.5	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Zulu, T (Thandoluhle)				Opponent Van Der Linde, L (Luandi)
2	9	Tournament Western Cape Top Schools 2022				Tournament Cape Winelands Schools Prestige 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Louw, X (Xander)				Opponent Philander, J (Jadelynne)
3	7	Tournament Western Cape Schools 2022				Tournament Brave Knights Chess Festival 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-07-30	rnd 1	type Standard	result 1
		Opponent Jara, I (Iviwe)				Opponent Baadjies, A (Ashley-Dean)

#	Games	Start				End
1	8	Tournament Strategema Chess Festival 2022				Tournament Langeberg Schools Chess Trials 2023
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2023-02-11	rnd 5	type Rapid	result 1
		Opponent Joel, R (Roneeq)				Opponent Krynauw, E (Elana)
2	7	Tournament McGregor Kings Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-04-09	rnd 4	type Rapid	result 1	date 2022-05-14	rnd 1	type Rapid	result 1
		Opponent Mvundura, I (Israela)				Opponent Kirchner, M (Miya)
3	5	Tournament Cape Winelands - Marie Delport Memorial 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-01-27	rnd 4	type Rapid	result 0.5	date 2024-02-10	rnd 2	type Rapid	result 1
		Opponent Joel, R (Roneeq)				Opponent Van Heerden, E (Emma)

No games found.

#	Games	Start				End

#	Games	Start				End
1	14	Tournament Western Cape Top Schools 2022				Tournament Cape Winelands Schools Prestige 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Louw, X (Xander)				Opponent Philander, J (Jadelynne)
2	8	Tournament Lanfeberg Schools Chess Trials 2022				Tournament McGregor Kings Chess Festival 2022
		date 2022-02-26	rnd 5	type Rapid	result 1	date 2022-04-09	rnd 2	type Rapid	result 1
		Opponent Plaatjies, M (Miah Caren)				Opponent Visser, K (Katie)
3	7	Tournament Western Cape Schools 2022				Tournament Brave Knights Chess Festival 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-07-30	rnd 1	type Standard	result 1
		Opponent Jara, I (Iviwe)				Opponent Baadjies, A (Ashley-Dean)

#	Games	Start				End
1	9	Tournament Western Cape Top Schools 2022				Tournament Cape Winelands Schools Prestige 2023
		date 2022-09-17	rnd 5	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Louw, X (Xander)				Opponent Philander, J (Jadelynne)
2	9	Tournament 2019 Wild Card Chess Championship				Tournament Western Cape Schools 2022
		date 2020-01-12	rnd 7	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Mugaragumbo, A (Amour)				Opponent Van Der Linde, L (Luandi)
3	7	Tournament Western Cape Schools 2022				Tournament Brave Knights Chess Festival 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-07-30	rnd 1	type Standard	result 1
		Opponent Jara, I (Iviwe)				Opponent Baadjies, A (Ashley-Dean)

#	Games	Start				End
1	8	Tournament Strategema Chess Festival 2022				Tournament Langeberg Schools Chess Trials 2023
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2023-02-11	rnd 5	type Rapid	result 1
		Opponent Joel, R (Roneeq)				Opponent Krynauw, E (Elana)
2	7	Tournament McGregor Kings Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-04-09	rnd 4	type Rapid	result 1	date 2022-05-14	rnd 1	type Rapid	result 1
		Opponent Mvundura, I (Israela)				Opponent Kirchner, M (Miya)
3	5	Tournament Robertson Strategema 2019				Tournament Western Cape Schools Kings & Queens 2019
		date 2019-10-05	rnd 2	type Rapid	result 1	date 2019-10-12	rnd 1	type Rapid	result 1
		Opponent Hendricks, M (Marse)				Opponent Lewaks, A (Andrea)

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	Krynauw ,E (Elana)	7	6	303.6	3	3	425	4	3	212.5	0	0	0
1	Krynauw ,E (Elana)	7	1143.2	1446.8	3	1118.1	1568.2	4	1168.2	1355.7	0	0	0
2	Robertson ,J (Jonah)	7	0	-425	2	0	-425	5	0	-425	0	0	0
2	Robertson ,J (Jonah)	7	1389.2	964.2	2	1200	964.2	5	1463.2	964.2	0	0	0
3	Joel ,R (Roneeq)	6	4	141.7	2	1.5	212.5	4	2.5	106.2	0	0	0
3	Joel ,R (Roneeq)	6	1285.8	1427.4	2	1301.9	1498.3	4	1243.7	1392	0	0	0
4	Mvundura ,I (Israela)	6	4	141.7	1	1	425	5	3	85	0	0	0
4	Mvundura ,I (Israela)	6	1212.3	1354	1	1200	1637.3	5	1230	1297.3	0	0	0
5	Coetzee ,C (Carli)	4	3	212.5	2	2	425	2	1	0	0	0	0
5	Coetzee ,C (Carli)	4	1184.1	1396.6	2	1146.2	1609.1	2	1197.9	1184.1	0	0	0
6	Cilliers ,D (Dene)	4	0	-425	2	0	-425	2	0	-425	0	0	0
6	Cilliers ,D (Dene)	4	1489.7	1064.7	2	1465.6	1064.7	2	1472.8	1064.7	0	0	0
7	Johnson ,A (Amy)	4	3	212.5	2	1	0	2	2	425	0	0	0
7	Johnson ,A (Amy)	4	1153.6	1366.1	2	1133	1153.6	2	1166	1578.6	0	0	0
8	Pekeur ,T (Thelmay)	4	3	212.5	1	1	425	3	2	141.7	0	0	0
8	Pekeur ,T (Thelmay)	4	1158.5	1371	1	1169.8	1583.5	3	1133.5	1300.2	0	0	0
9	Eyssen ,M (Marcihano)	3	3	425	2	2	425	1	1	425	0	0	0
9	Eyssen ,M (Marcihano)	3	1158.1	1583.1	2	1181.8	1583.1	1	1130.4	1583.1	0	0	0
10	Cupido ,C (Caylah)	3	2	141.7	2	2	425	1	0	-425	0	0	0
10	Cupido ,C (Caylah)	3	1250.3	1392	2	1249.6	1675.3	1	1181.2	825.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Lukas, J (Janeva)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms