Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, I (Imke)

Chess SA id

2120144656

FIDE id

Date of birth

2012-02-07 (U16)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1320.4	1311.2	1221.9	1200
Raw rating	1320.4	1311.2	1204.7	1200
Weighted rating	1308.2	1289.3	1221.9	1200
Weighted performance	1160.7	1202.9	0	0
Floor	912.6	852.5	733.9	700
K-factor	32	36	36	36
Min/Max rating change allowed	139.7	141.5	164.7	165.8
Highest rating	1412.6 2025-04-01	1352.5 2025-04-01	1293.1 2024-11-01	1200 2018-10-01
Highest raw rating	1412.6 2025-04-01	1352.5 2025-04-01	1233.9 2025-03-01	1200 2024-03-01
Highest weighted rating	1305.1 2025-11-30	1352.5 2024-10-01	1222.8 2025-11-30	1200 2018-10-01
Highest weighted performance	1412.6 2025-04-01	1352.5 2024-03-01	1293.1 2024-11-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.9	0
New rating	1320.4	1311.2	1221	1200
Analysis
Rating	1320.4	1311.2	1221.9	1200
Raw rating	1320.4	1311.2	1204.7	1200
Weighted rating	1308.2	1289.3	1221.9
Weighted performance	1160.7	1202.9	0
K-factor	32	36	36	36
Floor	912.6	852.5	733.9	700
Max/Min rating change allowed	139.7	141.5	164.7	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	1320.4	1311.2	1204.7	1200
New weighted rating	1310.9	1292.6	1221	1200
New weighted performance	1152.7	1194.4	0	0
Temp new rating	1320.4	1311.2	1221	1200
Temp new rating +/-	0	0	-0.9	0
Final new rating +/-	0	0	-0.9	0
New rating	1320.4	1311.2	1221	1200
New K-factor	32	36	36	36
New floor	912.6	852.5	733.9	700

Item	Main	Standard	Rapid
	0	0	0
	45	35	10
	45	40	5
	43	43	0
	4	4	0
	0	0	0
History	137	122	15

Games since
	Main 90	Standard 75		Rapid 15		Blitz 0
Gender	Female
Age group	U14
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3081		1011		283
Female	617		248		76
U14	568		197		57
U14 Female	149		62		20
Standard
	RSA		Province		Region
Overall	3073		883		278
Female	615		235		80
U14	571		169		59
U14 Female	158		64		22
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	45	23.5	52.22	18.9	1318	1336.8
Standard	35	18.5	52.86	24.3	1314.2	1338.5
Rapid	10	5	50	0	1331.2	1331.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	137	65.5	47.81	-18.6	1269.6	1251
Standard	122	57.5	47.13	-24.4	1266.7	1242.3
Rapid	15	8	53.33	28.3	1293.6	1321.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1320.4	1311.2	1204.7	1200
2025-11-30	1320.4	1311.2	1204.7	1200
2025-11-01	1333	1311.2	1233.9	1200
2025-09-30	1333	1311.2	1233.9	1200
2025-09-01	1333	1311.2	1233.9	1200
2025-08-01	1333	1311.2	1233.9	1200
2025-07-01	1362.3	1347.9	1233.9	1200
2025-06-01	1362.3	1347.9	1233.9	1200
2025-05-01	1359.4	1329.9	1233.9	1200
2025-04-01	1412.6	1352.5	1233.9	1200
2025-03-01	1280.4	1252.3	1233.9	1200
2025-02-01	1233.3	1221.8	1218.7	1200
2025-01-01	1233.3	1215.1	1218.7	1200
2024-12-01	1233.3	1215.1	1218.7	1200
2024-11-01	1233.3	1215.1	1218.7	1200
2024-10-01	1226.2	1215.1	1200	1200
2024-09-01	1226.2	1215.1	1200	1200
2024-11-01	1226.2	1215.1	1200	1200
2024-07-01	1236.4	1224.8	1200	1200
2024-06-01	1236.4	1224.8	1200	1200
2024-05-01	1277.6	1273.4	1200	1200
2024-04-01	1337.7	1333	1200	1200
2024-03-01	1242.3	1245.6	1200	1200
2024-02-01	1185.8	1174.7	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Laerskool George Suid 2025 (Ope)	2025-10-25	2025-10-25	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
2	George Top Schools 2025 (U13)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	5	1	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	Eden Chess Trials 2 2025 (U14)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	4	Yes	Analysis
5	Eden Schools Chess Trials 1 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	4	Yes	Analysis
6	George Schools Chess Trials 3 2025 (U13 Girls)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
7	Loerie Skaaktoernooi 2025	2025-02-22	2025-02-22	Rapid	Eden (WEG)	5	5	3	Yes	Analysis
8	George Schools Chess Trials 1 2025 (U13 Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	George Suid Senior Skaaktoernooi 2024	2024-10-26	2024-10-26	Rapid	Eden (WEG)	5	5	3	Yes	Analysis
10	George Primary Top Schools 2024 (U13)	2024-07-20	2024-07-20	Standard	Eden (WEG)	5	5	1.5	Yes	Analysis
11	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	5	1	Yes	Analysis
12	Eden Chess Trials 2 2024 (U14)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	4	Yes	Analysis
13	Eden School Chess Trials 1 2024 (U13 Girls)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
14	George Schools Trials 3 2024 (U13 Girls)	2024-03-02	2024-03-02	Standard	Eden (WEG)	5	5	3	Yes	Analysis
15	George Schools Trials 2 2024 (U13 Girls)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3	Yes	Analysis
16	George Schools Trials 1 2024 (U13 Girls)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
17	Eden Chess Union League 2023 (2nd Division)	2023-11-11	2023-11-11	Standard	Eden (WEG)	5	4	0	Yes	Analysis
18	Top Schools 2023 (U11)	2023-07-29	2023-07-29	Standard	Eden (WEG)	5	4	1	Yes	Analysis
19	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
20	Eden Trials 2+3 2023 (U12)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	5	Yes	Analysis
21	Eden Trails 1 2023 (U11 Girls)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
22	George Chess Trials 3 2023 (U11 Girls)	2023-02-25	2023-02-25	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
23	George Chess Trials 2 2023 (U11 Girls)	2023-02-11	2023-02-11	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
24	George Chess Trials 1 2023 (U11 Girls)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	2	Yes	Analysis
25	George Topskole 2022 (O11)	2022-07-30	2022-07-30	Standard	Eden (WEG)	5	4	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament George Schools Chess Trials 3 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Le Roux, M (Melandi)				Opponent Barends, Y (Youmorne)
2	4	Tournament Eden School Chess Trials 1 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-04-13	rnd 1	type Standard	result 1
		Opponent Wanie, A (Amy Lee)				Opponent Siganga, P (Princess)
3	3	Tournament George Schools Chess Trials 1 2025				Tournament Loerie Skaaktoernooi 2025
		date 2025-02-01	rnd 5	type Standard	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Le Roux, M (Melandi)				Opponent Pfaff, J (Joel)

#	Games	Start				End
1	5	Tournament George Schools Chess Trials 3 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Le Roux, M (Melandi)				Opponent Barends, Y (Youmorne)
2	4	Tournament Eden School Chess Trials 1 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-04-13	rnd 1	type Standard	result 1
		Opponent Wanie, A (Amy Lee)				Opponent Siganga, P (Princess)
3	3	Tournament George Schools Trials 2 2024				Tournament George Schools Trials 3 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Cwati, M (Minentle)				Opponent Siganga, P (Princess)

#	Games	Start				End
1	3	Tournament George Suid Senior Skaaktoernooi 2024				Tournament Loerie Skaaktoernooi 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Falfein, O (Onako)				Opponent Pfaff, J (Joel)
2	2	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 1	type Rapid	result 1	date 2024-10-26	rnd 2	type Rapid	result 1
		Opponent Cwati, M (Minentle)				Opponent Matsilele, A (Amvuyise)
3	1	Tournament Loerie Skaaktoernooi 2025				Tournament Loerie Skaaktoernooi 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Pfaff, E (Eva)				Opponent Pfaff, E (Eva)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Eden School Chess Trials 1 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-04-13	rnd 1	type Standard	result 1
		Opponent Wanie, A (Amy Lee)				Opponent Siganga, P (Princess)
2	3	Tournament George Schools Chess Trials 3 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Pfaff, E (Eva)				Opponent Barends, Y (Youmorne)
3	3	Tournament George Schools Chess Trials 1 2025				Tournament Loerie Skaaktoernooi 2025
		date 2025-02-01	rnd 5	type Standard	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Le Roux, M (Melandi)				Opponent Pfaff, J (Joel)

#	Games	Start				End
1	4	Tournament Eden School Chess Trials 1 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-04-13	rnd 1	type Standard	result 1
		Opponent Wanie, A (Amy Lee)				Opponent Siganga, P (Princess)
2	3	Tournament George Schools Chess Trials 3 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Pfaff, E (Eva)				Opponent Barends, Y (Youmorne)
3	3	Tournament George Schools Trials 2 2024				Tournament George Schools Trials 3 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Cwati, M (Minentle)				Opponent Siganga, P (Princess)

#	Games	Start				End
1	3	Tournament George Suid Senior Skaaktoernooi 2024				Tournament Loerie Skaaktoernooi 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Falfein, O (Onako)				Opponent Pfaff, J (Joel)
2	2	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 1	type Rapid	result 1	date 2024-10-26	rnd 2	type Rapid	result 1
		Opponent Cwati, M (Minentle)				Opponent Matsilele, A (Amvuyise)
3	1	Tournament Loerie Skaaktoernooi 2025				Tournament Loerie Skaaktoernooi 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Pfaff, E (Eva)				Opponent Pfaff, E (Eva)

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	Siganga ,P (Princess)	4	4	425	4	4	425	0	0	0	0	0	0
1	Siganga ,P (Princess)	4	1149.1	1574.1	4	1139.8	1574.1	0	0	0	0	0	0
2	Cwati ,M (Minentle)	4	3	212.5	3	2	141.7	1	1	425	0	0	0
2	Cwati ,M (Minentle)	4	1159.7	1372.2	3	1167.2	1301.3	1	1200	1584.7	0	0	0
3	Prins ,E (Eddie)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Prins ,E (Eddie)	3	1487.8	1062.8	3	1475.1	1062.8	0	0	0	0	0	0
4	Laws ,E (Erin)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Laws ,E (Erin)	3	1112.7	971	3	1115.5	971	0	0	0	0	0	0
5	Gouws ,C (Chante)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
5	Gouws ,C (Chante)	3	1200.2	1483.6	3	1201.8	1483.6	0	0	0	0	0	0
6	Bukula ,L (Lilitha)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Bukula ,L (Lilitha)	3	1156.7	1298.4	3	1142.2	1298.4	0	0	0	0	0	0
7	Wanie ,A (Amy Lee)	3	3	425	3	3	425	0	0	0	0	0	0
7	Wanie ,A (Amy Lee)	3	1155.5	1580.5	3	1160.7	1580.5	0	0	0	0	0	0
8	Bruiners ,C (Chandre)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
8	Bruiners ,C (Chandre)	3	1205.7	1347.4	3	1192.8	1347.4	0	0	0	0	0	0
9	Benn ,C (Ciara)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
9	Benn ,C (Ciara)	3	1429.8	1571.4	3	1427	1571.4	0	0	0	0	0	0
10	Cornforth ,K (Kayleigh)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Cornforth ,K (Kayleigh)	2	1531.7	1106.7	2	1551.4	1106.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Der Merwe, I (Imke)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms