Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, CF (Christiaan Frederik)

Chess SA id

187039088

FIDE id

Date of birth

1987-09-18 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1413.8	1412.1	1291.7	1300
Raw rating	1413.8	1412.1	1291	1300
Weighted rating	1373.3	1376.5	1291.7	1299
Weighted performance	1350.9	1351.3	0	0
Floor	913.8	912.1	800	800
K-factor	32	32	36	36
Min/Max rating change allowed	122.3	122.6	145.7	143.8
Highest rating	1543.1 2024-05-01	1531.6 2024-05-01	1300 2024-02-01	1300 2024-02-01
Highest raw rating	1413.8 2025-09-01	1412.1 2025-09-01	1300 2024-02-01	1300 2024-02-01
Highest weighted rating	1367.9 2025-09-01	1371.6 2025-09-01	1290 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1543.1 2024-05-01	1531.6 2024-05-01	1265 2024-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0.4	0
New rating	1413.8	1412.1	1292	1300
Analysis
Rating	1413.8	1412.1	1291.7	1300
Raw rating	1413.8	1412.1	1291	1300
Weighted rating	1373.3	1376.5	1291.7
Weighted performance	1350.9	1351.3	0
K-factor	32	32	36	36
Floor	913.8	912.1	800	800
Max/Min rating change allowed	122.3	122.6	145.7	143.8
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	1413.8	1412.1	1291	1300
New weighted rating	1378.1	1380.8	1292	1299.7
New weighted performance	1350.4	1350.8	0	0
Temp new rating	1413.8	1412.1	1292	1300
Temp new rating +/-	0	0	0.4	0
Final new rating +/-	0	0	0.4	0
New rating	1413.8	1412.1	1292	1300
New K-factor	32	32	36	36
New floor	913.8	912.1	800	800

Item	Main	Standard	Rapid
	0	0	0
	15	15	0
	10	5	5
	4	4	0
	0	0	0
	0	0	0
History	29	24	5

Games since
	Main 25	Standard 20		Rapid 5		Blitz 0
Gender	Male
Age group	Adult
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	15	7.5	50	0	1437.8	1437.8
Standard	15	7.5	50	0	1437.8	1437.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	29	13.5	46.55	-29.3	1488.5	1459.2
Standard	24	11.5	47.92	-17.7	1505.1	1487.4
Rapid	5	2	40	-85	1408.8	1323.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1413.8	1412.1	1291	1300
2025-09-01	1413.8	1412.1	1291	1300
2025-08-01	1372.5	1371.5	1291	1300
2025-07-01	1372.5	1371.5	1291	1300
2025-06-01	1372.5	1371.5	1291	1300
2025-05-01	1372.5	1371.5	1291	1300
2025-04-01	1372.5	1371.5	1291	1300
2025-03-01	1355.2	1353.8	1291	1300
2025-02-01	1373.6	1385.2	1291	1300
2025-01-01	1373.6	1385.2	1291	1300
2024-12-01	1373.6	1385.2	1291	1300
2024-11-01	1373.6	1385.2	1291	1300
2024-10-01	1373.6	1385.2	1291	1300
2024-09-01	1373.6	1385.2	1291	1300
2024-08-01	1382.7	1385.2	1300	1300
2024-07-01	1382.7	1385.2	1300	1300
2024-06-01	1382.7	1385.2	1300	1300
2024-08-01	1318.4	1324.4	1300	1300
2024-04-01	1318.4	1324.4	1300	1300
2024-03-01	1318.4	1324.4	1300	1300
2024-02-01	1318.4	1324.4	1300	1300
2024-01-01	1318.4	1324.4	1300	1300
2023-12-01	1232.3	1234	1200	1200
2023-11-01	1232.3	1234	1200	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	Free State Closed 2025 (Adult Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Mangaung Metro Chess 7-8 March 2025 (A)	2025-03-07	2025-03-08	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	Mangaung Metro Chess 7-8 February 2025 (A)	2025-02-07	2025-02-08	Standard	Mangaung (FMB)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Free State Closed 2025 (Adult Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Mangaung Metro Chess 7-8 March 2025 (A)	2025-03-07	2025-03-08	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	Mangaung Metro Chess 7-8 February 2025 (A)	2025-02-07	2025-02-08	Standard	Mangaung (FMB)	5	5	1.5	Yes	Analysis
4	Mangaung Metro Chess 3 August 2024 (A)	2024-08-03	2024-08-03	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
5	10th Piet van Zyl Chess Festival 2024 (A+B)	2024-05-24	2024-05-25	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
6	9th Piet van Zyl Chess Festival 2023 (A)	2023-05-26	2023-05-27	Standard	Mangaung (FMB)	5	4	1.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament 9th Piet van Zyl Chess Festival 2023				Tournament 10th Piet van Zyl Chess Festival 2024
		date 2023-05-27	rnd 5	type Standard	result 1	date 2024-05-25	rnd 3	type Standard	result 0.5
		Opponent Tokoyi, R (Romeo)				Opponent De Lange, C (Christo)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Kabuya, A (Adrian)				Opponent Seutloali, T (Thabiso)
3	2	Tournament Mangaung Metro Chess 7-8 March 2025				Tournament Mangaung Metro Chess 7-8 March 2025
		date 2025-03-07	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Ebersohn, D (Dewald)				Opponent Maseko, E (Elen Banele)

#	Games	Start				End
1	4	Tournament 9th Piet van Zyl Chess Festival 2023				Tournament 10th Piet van Zyl Chess Festival 2024
		date 2023-05-27	rnd 5	type Standard	result 1	date 2024-05-25	rnd 3	type Standard	result 0.5
		Opponent Tokoyi, R (Romeo)				Opponent De Lange, C (Christo)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Kabuya, A (Adrian)				Opponent Seutloali, T (Thabiso)
3	2	Tournament Mangaung Metro Chess 7-8 March 2025				Tournament Mangaung Metro Chess 7-8 March 2025
		date 2025-03-07	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Ebersohn, D (Dewald)				Opponent Maseko, E (Elen Banele)

#	Games	Start				End
1	2	Tournament Mangaung Metro Chess 3 August 2024				Tournament Mangaung Metro Chess 3 August 2024
		date 2024-08-03	rnd 2	type Rapid	result 1	date 2024-08-03	rnd 3	type Rapid	result 1
		Opponent Rantho, M (Maloisane)				Opponent Pretorius, L (Leighan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 9th Piet van Zyl Chess Festival 2023				Tournament 10th Piet van Zyl Chess Festival 2024
		date 2023-05-27	rnd 5	type Standard	result 1	date 2024-05-24	rnd 2	type Standard	result 1
		Opponent Tokoyi, R (Romeo)				Opponent Smit, A (Albert)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Kabuya, A (Adrian)				Opponent Seutloali, T (Thabiso)
3	2	Tournament Mangaung Metro Chess 7-8 March 2025				Tournament Mangaung Metro Chess 7-8 March 2025
		date 2025-03-07	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Ebersohn, D (Dewald)				Opponent Maseko, E (Elen Banele)

#	Games	Start				End
1	3	Tournament 9th Piet van Zyl Chess Festival 2023				Tournament 10th Piet van Zyl Chess Festival 2024
		date 2023-05-27	rnd 5	type Standard	result 1	date 2024-05-24	rnd 2	type Standard	result 1
		Opponent Tokoyi, R (Romeo)				Opponent Smit, A (Albert)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 2	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Kabuya, A (Adrian)				Opponent Seutloali, T (Thabiso)
3	2	Tournament Mangaung Metro Chess 7-8 March 2025				Tournament Mangaung Metro Chess 7-8 March 2025
		date 2025-03-07	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Ebersohn, D (Dewald)				Opponent Maseko, E (Elen Banele)

#	Games	Start				End
1	2	Tournament Mangaung Metro Chess 3 August 2024				Tournament Mangaung Metro Chess 3 August 2024
		date 2024-08-03	rnd 2	type Rapid	result 1	date 2024-08-03	rnd 3	type Rapid	result 1
		Opponent Rantho, M (Maloisane)				Opponent Pretorius, L (Leighan)

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	Weng ,Q (Qi)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Weng ,Q (Qi)	2	1449.8	1024.8	2	1411.1	1024.8	0	0	0	0	0	0
2	Modirwa ,O (Ofentse)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Modirwa ,O (Ofentse)	2	1740.9	1315.9	2	1785.7	1315.9	0	0	0	0	0	0
3	Senatle ,K (Kamogelo)	2	1	0	1	1	425	1	0	-425	0	0	0
3	Senatle ,K (Kamogelo)	2	1689.8	1689.8	1	1509.6	2114.8	1	1633.4	1264.8	0	0	0
4	Lebenya ,A (Agnes)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Lebenya ,A (Agnes)	1	1342.7	917.7	1	1190.4	917.7	0	0	0	0	0	0
5	Tokoyi ,R (Romeo)	1	1	425	1	1	425	0	0	0	0	0	0
5	Tokoyi ,R (Romeo)	1	1500.6	1925.6	1	1498.5	1925.6	0	0	0	0	0	0
6	Els ,R (Ruben)	1	1	425	1	1	425	0	0	0	0	0	0
6	Els ,R (Ruben)	1	1416.5	1841.5	1	1390.8	1841.5	0	0	0	0	0	0
7	Maseko ,E (Elen Banele)	1	1	425	1	1	425	0	0	0	0	0	0
7	Maseko ,E (Elen Banele)	1	1181.3	1606.3	1	1179.4	1606.3	0	0	0	0	0	0
8	De Lange ,C (Christo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	De Lange ,C (Christo)	1	1585.6	1585.6	1	1564.9	1585.6	0	0	0	0	0	0
9	Smit ,A (Albert)	1	1	425	1	1	425	0	0	0	0	0	0
9	Smit ,A (Albert)	1	1502	1927	1	1539.6	1927	0	0	0	0	0	0
10	Venter ,TG (Tertius Gerhard)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Venter ,TG (Tertius Gerhard)	1	1910	1485	1	1910	1485	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, CF (Christiaan Frederik)

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