Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, T (Tiaan)

Chess SA id

1870111352

FIDE id

Date of birth

1987-09-18 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1501.1	1518.6	1267.3	1317.6
Raw rating	1495.4	1518.6	1267.3	1307
Weighted rating	1501.1	1518.5	1266.5	1317.6
Weighted performance	1180.1	0	0	0
Floor	1022.9	1045.8	767.3	830.6
K-factor	32	32	36	36
Min/Max rating change allowed	108.9	105.3	150.7	142.4
Highest rating	1561.1 2019-03-01	1565.5 2019-03-01	1281.6 2022-02-01	1411.5 2024-09-01
Highest raw rating	1522.9 2024-10-01	1545.8 2024-09-01	1267.3 2024-03-01	1330.6 2024-10-01
Highest weighted rating	1495.4 2025-08-01	1511.2 2025-08-01	1264.1 2025-08-01	1330.6 2025-07-01
Highest weighted performance	1561.1 2019-03-01	1565.5 2019-03-01	1281.6 2022-02-01	1411.5 2024-09-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.4	0.7	0	-0.2
New rating	1501.5	1519.3	1267.3	1317.3
Analysis
Rating	1501.1	1518.6	1267.3	1317.6
Raw rating	1495.4	1518.6	1267.3	1307
Weighted rating	1501.1	1518.5	1266.5
Weighted performance	1180.1	0	0
K-factor	32	32	36	36
Floor	1022.9	1045.8	767.3	830.6
Max/Min rating change allowed	108.9	105.3	150.7	142.4
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	1495.4	1518.6	1267.3	1307
New weighted rating	1501.5	1519.3	1267	1317.3
New weighted performance	1172.3	0	0	0
Temp new rating	1501.5	1519.3	1267.3	1317.3
Temp new rating +/-	0.4	0.7	0	-0.2
Final new rating +/-	0.4	0.7	0	-0.2
New rating	1501.5	1519.3	1267.3	1317.3
New K-factor	32	32	36	36
New floor	1022.9	1045.8	767.3	830.6

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	9	0	0	9
	22	10	5	7
	5	0	5	0
	5	0	5	0
	0	0	0	0
History	46	15	15	16

Games since
	Main 31	Standard 10		Rapid 5		Blitz 16
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	261		7		5
Male	245		7		5
Adult	184		6		4
Adult Male	176		6		4


	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	9	0	0	-425	1609.1	1184.1
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	9	0	0	-425	1609.1	1184.1
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	46	23.5	51.09	9.2	1441.2	1450.4
Standard	15	11.5	76.67	226.7	1336.7	1563.4
Rapid	15	8	53.33	28.3	1415.8	1444.1
Blitz	16	4	25	-212.5	1562.9	1350.4

Date	Main	Standard	Rapid	Blitz
2025-11-01	1495.4	1518.6	1267.3	1307
2025-09-30	1495.4	1518.6	1267.3	1307
2025-09-01	1495.4	1518.6	1267.3	1307
2025-08-01	1495.4	1518.6	1267.3	1307
2025-07-01	1508.7	1518.6	1267.3	1330.6
2025-06-01	1508.7	1518.6	1267.3	1330.6
2025-05-01	1508.7	1518.6	1267.3	1330.6
2025-04-01	1508.7	1518.6	1267.3	1330.6
2025-03-01	1508.7	1518.6	1267.3	1330.6
2025-02-01	1508.7	1518.6	1267.3	1330.6
2025-01-01	1508.7	1518.6	1267.3	1330.6
2024-12-01	1508.7	1518.6	1267.3	1330.6
2024-11-01	1508.7	1518.6	1267.3	1330.6
2024-10-01	1522.9	1545.8	1267.3	1330.6
2024-09-01	1521.1	1545.8	1267.3	1300
2024-08-01	1482.9	1510	1267.3	1300
2024-07-01	1482.9	1510	1267.3	1300
2024-09-01	1482.9	1510	1267.3	1300
2024-05-01	1482.9	1510	1267.3	1300
2024-04-01	1482.9	1510	1267.3	1300
2024-03-01	1482.9	1510	1267.3	1300
2024-02-01	1482.1	1510	1233.4	1300
2024-01-01	1482.1	1510	1233.4	1300
2023-12-01	1297	1282	1207.3	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	Smart Chess Blitz 2025 (Elite)	2025-07-19	2025-07-19	Blitz	Mangaung (FMB)	9	9	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Smart Chess Blitz 2025 (Elite)	2025-07-19	2025-07-19	Blitz	Mangaung (FMB)	9	9	0	Yes	Analysis
2	Mangaung Metro Chess 11-12 October 2024 (A)	2024-10-11	2024-10-12	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	Smart Chess Blitz 2024 (A)	2024-09-07	2024-09-07	Blitz	Mangaung (FMB)	7	7	4	Yes	Analysis
4	Morris Club Championship 2024	2024-07-26	2024-07-27	Standard	Mangaung (FMB)	5	5	5	Yes	Analysis
5	Mangaung Metro Chess 10 February 2024 (A)	2024-02-10	2024-02-10	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Morris Club Championship 2023	2023-07-28	2023-07-28	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
7	Morris Club Championship 2022	2022-02-26	2022-02-26	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
8	Mangaung Metro Chess 15-16 March 2019 (A)	2019-03-15	2019-03-16	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	8	Tournament Mangaung Metro Chess 10 February 2024				Tournament Smart Chess Blitz 2024
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2024-09-07	rnd 1	type Blitz	result 1
		Opponent Van Biljon, S (Sarel)				Opponent Maleka, Q (Qosho Thabang)
2	4	Tournament Mangaung Metro Chess 15-16 March 2019				Tournament Mangaung Metro Chess 15-16 March 2019
		date 2019-03-15	rnd 1	type Standard	result 1	date 2019-03-16	rnd 4	type Standard	result 1
		Opponent Makhetha, L (Laviens)				Opponent Kleinhans, F (Fanie)
3	3	Tournament Smart Chess Blitz 2024				Tournament Smart Chess Blitz 2024
		date 2024-09-07	rnd 4	type Blitz	result 1	date 2024-09-07	rnd 6	type Blitz	result 1
		Opponent Weng, Q (Qi)				Opponent Halter, P (Prince)

#	Games	Start				End
1	7	Tournament Morris Club Championship 2024				Tournament Mangaung Metro Chess 11-12 October 2024
		date 2024-07-26	rnd 1	type Standard	result 1	date 2024-10-11	rnd 2	type Standard	result 1
		Opponent Suping, L (Lerato)				Opponent Feng, SM (Sheng-Ming)
2	4	Tournament Mangaung Metro Chess 15-16 March 2019				Tournament Mangaung Metro Chess 15-16 March 2019
		date 2019-03-15	rnd 1	type Standard	result 1	date 2019-03-16	rnd 4	type Standard	result 1
		Opponent Makhetha, L (Laviens)				Opponent Kleinhans, F (Fanie)
3	1	Tournament Mangaung Metro Chess 11-12 October 2024				Tournament Mangaung Metro Chess 11-12 October 2024
		date 2024-10-12	rnd 5	type Standard	result 1	date 2024-10-12	rnd 5	type Standard	result 1
		Opponent Maleka, Q (Qosho Thabang)				Opponent Maleka, Q (Qosho Thabang)

#	Games	Start				End
1	3	Tournament Morris Club Championship 2022				Tournament Morris Club Championship 2022
		date 2022-02-26	rnd 1	type Rapid	result 1	date 2022-02-26	rnd 3	type Rapid	result 1
		Opponent Tomane, T (Tumisana)				Opponent Steyn, PJ (Petrus)
2	2	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 10 February 2024
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2024-02-10	rnd 5	type Rapid	result 1
		Opponent Van Biljon, S (Sarel)				Opponent Monaheng, T (Thabang Louis)
3	2	Tournament Morris Club Championship 2023				Tournament Morris Club Championship 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 2	type Rapid	result 1
		Opponent Herbst, S (Schalk)				Opponent Mcthebe, M (Marshall)

#	Games	Start				End
1	3	Tournament Smart Chess Blitz 2024				Tournament Smart Chess Blitz 2024
		date 2024-09-07	rnd 4	type Blitz	result 1	date 2024-09-07	rnd 6	type Blitz	result 1
		Opponent Weng, Q (Qi)				Opponent Halter, P (Prince)
2	1	Tournament Smart Chess Blitz 2024				Tournament Smart Chess Blitz 2024
		date 2024-09-07	rnd 1	type Blitz	result 1	date 2024-09-07	rnd 1	type Blitz	result 1
		Opponent Maleka, Q (Qosho Thabang)				Opponent Maleka, Q (Qosho Thabang)

#	Games	Start				End
1	8	Tournament Mangaung Metro Chess 10 February 2024				Tournament Smart Chess Blitz 2024
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2024-09-07	rnd 1	type Blitz	result 1
		Opponent Van Biljon, S (Sarel)				Opponent Maleka, Q (Qosho Thabang)
2	3	Tournament Smart Chess Blitz 2024				Tournament Smart Chess Blitz 2024
		date 2024-09-07	rnd 4	type Blitz	result 1	date 2024-09-07	rnd 6	type Blitz	result 1
		Opponent Weng, Q (Qi)				Opponent Halter, P (Prince)
3	3	Tournament Morris Club Championship 2022				Tournament Morris Club Championship 2022
		date 2022-02-26	rnd 1	type Rapid	result 1	date 2022-02-26	rnd 3	type Rapid	result 1
		Opponent Tomane, T (Tumisana)				Opponent Steyn, PJ (Petrus)

#	Games	Start				End
1	7	Tournament Morris Club Championship 2024				Tournament Mangaung Metro Chess 11-12 October 2024
		date 2024-07-26	rnd 1	type Standard	result 1	date 2024-10-11	rnd 2	type Standard	result 1
		Opponent Suping, L (Lerato)				Opponent Feng, SM (Sheng-Ming)
2	2	Tournament Mangaung Metro Chess 15-16 March 2019				Tournament Mangaung Metro Chess 15-16 March 2019
		date 2019-03-15	rnd 1	type Standard	result 1	date 2019-03-15	rnd 2	type Standard	result 1
		Opponent Makhetha, L (Laviens)				Opponent Gertenbach, J (Jeandre)
3	1	Tournament Mangaung Metro Chess 11-12 October 2024				Tournament Mangaung Metro Chess 11-12 October 2024
		date 2024-10-12	rnd 5	type Standard	result 1	date 2024-10-12	rnd 5	type Standard	result 1
		Opponent Maleka, Q (Qosho Thabang)				Opponent Maleka, Q (Qosho Thabang)

#	Games	Start				End
1	3	Tournament Morris Club Championship 2022				Tournament Morris Club Championship 2022
		date 2022-02-26	rnd 1	type Rapid	result 1	date 2022-02-26	rnd 3	type Rapid	result 1
		Opponent Tomane, T (Tumisana)				Opponent Steyn, PJ (Petrus)
2	2	Tournament Mangaung Metro Chess 10 February 2024				Tournament Mangaung Metro Chess 10 February 2024
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2024-02-10	rnd 5	type Rapid	result 1
		Opponent Van Biljon, S (Sarel)				Opponent Monaheng, T (Thabang Louis)
3	2	Tournament Morris Club Championship 2023				Tournament Morris Club Championship 2023
		date 2023-07-28	rnd 1	type Rapid	result 1	date 2023-07-28	rnd 2	type Rapid	result 1
		Opponent Herbst, S (Schalk)				Opponent Mcthebe, M (Marshall)

#	Games	Start				End
1	3	Tournament Smart Chess Blitz 2024				Tournament Smart Chess Blitz 2024
		date 2024-09-07	rnd 4	type Blitz	result 1	date 2024-09-07	rnd 6	type Blitz	result 1
		Opponent Weng, Q (Qi)				Opponent Halter, P (Prince)
2	1	Tournament Smart Chess Blitz 2024				Tournament Smart Chess Blitz 2024
		date 2024-09-07	rnd 1	type Blitz	result 1	date 2024-09-07	rnd 1	type Blitz	result 1
		Opponent Maleka, Q (Qosho Thabang)				Opponent Maleka, Q (Qosho Thabang)

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	Rossouw ,J (Johrne)	4	1	-212.5	1	1	425	3	0	-425	0	0	0
1	Rossouw ,J (Johrne)	4	1479.8	1267.2	1	1512.1	1904.8	3	1173.4	1054.8	0	0	0
2	Modirwa ,O (Ofentse)	3	0	-425	0	0	0	1	0	-425	2	0	-425
2	Modirwa ,O (Ofentse)	3	1718.7	1293.7	0	0	0	1	1408.9	1293.7	2	1455.5	1293.7
3	Maleka ,Q (Qosho Thabang)	2	2	425	1	1	425	0	0	0	1	1	425
3	Maleka ,Q (Qosho Thabang)	2	1290.6	1715.6	1	1248.8	1715.6	0	0	0	1	1200	1715.6
4	Weng ,Q (Qi)	2	1	0	0	0	0	0	0	0	2	1	0
4	Weng ,Q (Qi)	2	1469.9	1469.9	0	0	0	0	0	0	2	1198.2	1469.9
5	Senatle ,K (Kamogelo)	2	0	-425	0	0	0	0	0	0	2	0	-425
5	Senatle ,K (Kamogelo)	2	1689.2	1264.2	0	0	0	0	0	0	2	1364.4	1264.2
6	Thunzi ,M (Mxolisi)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Thunzi ,M (Mxolisi)	1	1481.4	1481.4	1	1481.4	1481.4	0	0	0	0	0	0
7	Mantje ,K (Katleho)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mantje ,K (Katleho)	1	1465.4	1040.4	1	1452.9	1040.4	0	0	0	0	0	0
8	Scheepers ,CAJ (Christiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Scheepers ,CAJ (Christiaan)	1	1258.4	833.4	1	846.2	833.4	0	0	0	0	0	0
9	Strydom ,M (Mehan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Strydom ,M (Mehan)	1	1188.7	1613.7	1	1050.8	1613.7	0	0	0	0	0	0
10	Feng ,SM (Sheng-Ming)	1	1	425	1	1	425	0	0	0	0	0	0
10	Feng ,SM (Sheng-Ming)	1	1230	1655	1	1196.3	1655	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Van Der Merwe, T (Tiaan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms