Chess South Africa Ratings Database

PLAYER PAGE

Personal

Du Preez, C (Christiaan)

Chess SA id

1130137102

FIDE id

Date of birth

2013-05-13 (U14)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-09-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1315.1	1298.3	1282.8	1200
Raw rating	1315.1	1298.3	1282.8	1200
Weighted rating	1304.3	1283.5	1282.3	1200
Weighted performance	1149.1	1130.3	911.2	0
Floor	815.1	798.3	782.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	140.7	144.1	147.4	165.8
Highest rating	1380.2 2022-03-01	1384.6 2022-03-01	1379.5 2022-04-01	1200 2018-10-01
Highest raw rating	1315.1 2024-10-01	1298.3 2024-10-01	1282.8 2024-02-01	1200 2024-02-01
Highest weighted rating	1299 2025-08-01	1277.1 2025-08-01	1281.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1380.2 2022-03-01	1384.6 2022-03-01	1379.5 2022-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1315.1	1298.3	1282.8	1200
Analysis
Rating	1315.1	1298.3	1282.8	1200
Raw rating	1315.1	1298.3	1282.8	1200
Weighted rating	1304.3	1283.5	1282.3
Weighted performance	1149.1	1130.3	911.2
K-factor	36	36	36	36
Floor	815.1	798.3	782.8	700
Max/Min rating change allowed	140.7	144.1	147.4	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	1315.1	1298.3	1282.8	1200
New weighted rating	1306.5	1286.3	1282.5	1200
New weighted performance	1148.7	1129.9	910.8	0
Temp new rating	1315.1	1298.3	1282.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1315.1	1298.3	1282.8	1200
New K-factor	36	36	36	36
New floor	815.1	798.3	782.8	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	26	21	5
	26	15	11
	22	11	11
	0	0	0
History	74	47	27

Games since
	Main 26	Standard 21		Rapid 5		Blitz 0
Gender	Male
Age group	U14
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	41.5	56.08	51.7	1237	1288.7
Standard	47	26	55.32	45.2	1243.8	1289.1
Rapid	27	15.5	57.41	63	1225	1288
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1315.1	1298.3	1282.8	1200
2025-09-01	1315.1	1298.3	1282.8	1200
2025-08-01	1315.1	1298.3	1282.8	1200
2025-07-01	1315.1	1298.3	1282.8	1200
2025-06-01	1315.1	1298.3	1282.8	1200
2025-05-01	1315.1	1298.3	1282.8	1200
2025-04-01	1315.1	1298.3	1282.8	1200
2025-03-01	1315.1	1298.3	1282.8	1200
2025-02-01	1315.1	1298.3	1282.8	1200
2025-01-01	1315.1	1298.3	1282.8	1200
2024-12-01	1315.1	1298.3	1282.8	1200
2024-11-01	1315.1	1298.3	1282.8	1200
2024-10-01	1315.1	1298.3	1282.8	1200
2024-09-01	1307.3	1271.4	1282.8	1200
2024-08-01	1307.3	1271.4	1282.8	1200
2024-07-01	1247.7	1208.4	1282.8	1200
2024-06-01	1247.7	1208.4	1282.8	1200
2024-08-01	1253.1	1220.6	1282.8	1200
2024-04-01	1253.1	1220.6	1282.8	1200
2024-03-01	1244.7	1209.4	1282.8	1200
2024-02-01	1244.7	1209.4	1282.8	1200
2024-01-01	1231.3	1209.4	1255.4	1200
2023-12-01	1231.3	1209.4	1255.4	1200
2023-11-01	1231.3	1209.4	1255.4	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	Western Cape Top Schools Championship 2024 (U11 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	4	Yes	Analysis
2	Overberg Schools - Top Schools 2024 (U11 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	4	4	Yes	Analysis
3	Western Cape PS Individuals Championship 2024 (U11 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
4	Overberg Schools - PS Closed 2024 (U11 Boys)	2024-03-16	2024-03-16	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
5	Overberg Open Rapid 2024 (U11)	2024-01-27	2024-01-27	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
6	Overberg Top Schools 2023 (U11)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	4	2	Yes	Analysis
7	Western Cape PS Individuals 2023 (U11 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
8	Overberg School Chess Closed Tournament 2023 (U11 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
9	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
10	Overberg Schools Open Tournament 2023 (U10)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
11	The Hermanus Open 2022 (U10)	2022-05-14	2022-05-14	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
12	Western Cape Schools 2022 (U9 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
13	OCF Open 2022 (U10)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	3.5	Yes	Analysis
14	Overberg Primary Schools Closed 2022 (U9 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament OCF Open 2022				Tournament The Hermanus Open 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 3	type Rapid	result 1
		Opponent Van Zyl, E (Ethan)				Opponent Van Eeden, B (Beyers)
2	4	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-09-01	rnd 6	type Standard	result 1
		Opponent Collins, M (Marius)				Opponent Mainprize, R (Ramsey)
3	4	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Qhina, L (Lisakhanya)				Opponent Van Zyl, P (Pieter)

#	Games	Start				End
1	4	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-09-01	rnd 6	type Standard	result 1
		Opponent Collins, M (Marius)				Opponent Mainprize, R (Ramsey)
2	4	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Qhina, L (Lisakhanya)				Opponent Van Zyl, P (Pieter)
3	4	Tournament Overberg Primary Schools Closed 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Castleman, W (Willem)				Opponent Groenewald, C (Christiaan)

#	Games	Start				End
1	6	Tournament OCF Open 2022				Tournament The Hermanus Open 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 3	type Rapid	result 1
		Opponent Van Zyl, E (Ethan)				Opponent Van Eeden, B (Beyers)
2	3	Tournament Overberg Primary School Trials				Tournament Overberg Open Rapid 2024
		date 2023-03-10	rnd 6	type Rapid	result 1	date 2024-01-27	rnd 2	type Rapid	result 1
		Opponent Craib, J (Joel)				Opponent Snyman, V (Van Zyl)
3	3	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 1	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Otto, T (Taylor)				Opponent Theron, J (Joshua)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-09-01	rnd 6	type Standard	result 1
		Opponent Collins, M (Marius)				Opponent Mainprize, R (Ramsey)
2	4	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Qhina, L (Lisakhanya)				Opponent Van Zyl, P (Pieter)
3	4	Tournament OCF Open 2022				Tournament The Hermanus Open 2022
		date 2022-04-09	rnd 5	type Rapid	result 1	date 2022-05-14	rnd 3	type Rapid	result 1
		Opponent Coetzee, Z (Zoe)				Opponent Van Eeden, B (Beyers)

#	Games	Start				End
1	4	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-09-01	rnd 6	type Standard	result 1
		Opponent Collins, M (Marius)				Opponent Mainprize, R (Ramsey)
2	4	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Qhina, L (Lisakhanya)				Opponent Van Zyl, P (Pieter)
3	4	Tournament Overberg Primary Schools Closed 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Castleman, W (Willem)				Opponent Groenewald, C (Christiaan)

#	Games	Start				End
1	4	Tournament OCF Open 2022				Tournament The Hermanus Open 2022
		date 2022-04-09	rnd 5	type Rapid	result 1	date 2022-05-14	rnd 3	type Rapid	result 1
		Opponent Coetzee, Z (Zoe)				Opponent Van Eeden, B (Beyers)
2	3	Tournament Overberg Primary School Trials				Tournament Overberg Open Rapid 2024
		date 2023-03-10	rnd 6	type Rapid	result 1	date 2024-01-27	rnd 2	type Rapid	result 1
		Opponent Craib, J (Joel)				Opponent Snyman, V (Van Zyl)
3	3	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 1	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Otto, T (Taylor)				Opponent Theron, J (Joshua)

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	Otto ,T (Taylor)	3	3	425	1	1	425	2	2	425	0	0	0
1	Otto ,T (Taylor)	3	1186.5	1611.5	1	1200	1611.5	2	1235.2	1611.5	0	0	0
2	Erasmus ,A (Ashton)	2	1	0	2	1	0	0	0	0	0	0	0
2	Erasmus ,A (Ashton)	2	1263.8	1263.8	2	1216.8	1263.8	0	0	0	0	0	0
3	Pretorius ,D (Dominic Reinhart)	2	1	0	2	1	0	0	0	0	0	0	0
3	Pretorius ,D (Dominic Reinhart)	2	1177.8	1177.8	2	1164.6	1177.8	0	0	0	0	0	0
4	Collins ,M (Marius)	2	2	425	2	2	425	0	0	0	0	0	0
4	Collins ,M (Marius)	2	1099.3	1524.3	2	1141.4	1524.3	0	0	0	0	0	0
5	Buhr ,H (Heinrich)	2	2	425	1	1	425	1	1	425	0	0	0
5	Buhr ,H (Heinrich)	2	1168.8	1593.8	1	1130	1593.8	1	1200	1593.8	0	0	0
6	Bester ,S (Sebastian)	2	0	-425	1	0	-425	1	0	-425	0	0	0
6	Bester ,S (Sebastian)	2	1277.7	852.7	1	1289.8	852.7	1	1238.4	852.7	0	0	0
7	Beyers ,R (Riekie)	2	1	0	1	1	425	1	0	-425	0	0	0
7	Beyers ,R (Riekie)	2	1193.6	1193.6	1	1200	1618.6	1	1183.6	768.6	0	0	0
8	Henning ,N (Nicolas)	2	0	-425	0	0	0	2	0	-425	0	0	0
8	Henning ,N (Nicolas)	2	1263.2	838.2	0	0	0	2	1266.8	838.2	0	0	0
9	Castleman ,W (Willem)	1	1	425	1	1	425	0	0	0	0	0	0
9	Castleman ,W (Willem)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Groenewald ,C (Christiaan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Groenewald ,C (Christiaan)	1	1181.1	1606.1	1	1176.4	1606.1	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

Du Preez, C (Christiaan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms