Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Ridder, B (Bernard)

Chess SA id

1120139177

FIDE id

Date of birth

2012-03-23 (U14)

Gender

Male

Region

Central Karoo (WCK)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1223.4

Item	Main	Standard	Rapid	Blitz
Rating	1218.5	1220.7	1200	1200
Raw rating	1218.2	1220.3	1200	1200
Weighted rating	1218.5	1220.7	1200	1200
Weighted performance	0	0	0	0
Floor	732.3	737.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.6	161.1	165.8	165.8
Highest rating	1280 2022-03-01	1276.9 2022-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1232.3 2025-03-01	1237.6 2025-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1218.2 2025-08-01	1237.6 2025-05-05	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1280 2022-03-01	1276.9 2022-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0.1	0	0
New rating	1218.6	1220.8	1200	1200
Analysis
Rating	1218.5	1220.7	1200	1200
Raw rating	1218.2	1220.3	1200	1200
Weighted rating	1218.5	1220.7	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	732.3	737.6	700	700
Max/Min rating change allowed	161.6	161.1	165.8	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	1218.2	1220.3	1200	1200
New weighted rating	1218.6	1220.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1218.6	1220.8	1200	1200
Temp new rating +/-	0.1	0.1	0	0
Final new rating +/-	0.1	0.1	0	0
New rating	1218.6	1220.8	1200	1200
New K-factor	36	36	36	36
New floor	732.3	737.6	700	700

Item	Main	Standard
	0	0
	11	11
	0	0
	0	0
	5	5
	0	0
History	16	16

Games since
	Main 11	Standard 11		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Central Karoo (WCK)
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	11	5	45.45	-38.6	1269.2	1230.6
Standard	11	5	45.45	-38.6	1269.2	1230.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	16	8	50	0	1243.6	1243.6
Standard	16	8	50	0	1243.6	1243.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1218.2	1220.3	1200	1200
2025-09-01	1218.2	1220.3	1200	1200
2025-08-01	1218.2	1220.3	1200	1200
2025-07-01	1218	1220.1	1200	1200
2025-06-01	1217.8	1219.4	1200	1200
2025-05-01	1232.3	1237.6	1200	1200
2025-04-01	1232.3	1237.6	1200	1200
2025-03-01	1232.3	1237.6	1200	1200
2025-02-01	1213.3	1214.4	1200	1200
2025-01-01	1213.3	1214.4	1200	1200
2024-12-01	1213.3	1214.4	1200	1200
2024-11-01	1213.3	1214.4	1200	1200
2024-10-01	1213.3	1214.4	1200	1200
2024-09-01	1213.3	1214.4	1200	1200
2024-08-01	1213.3	1214.4	1200	1200
2024-07-01	1213.3	1214.4	1200	1200
2024-06-01	1213.3	1214.4	1200	1200
2024-08-01	1213.3	1214.4	1200	1200
2024-04-01	1213.3	1214.4	1200	1200
2024-03-01	1213.3	1214.4	1200	1200
2024-02-01	1213.3	1214.4	1200	1200
2024-01-01	1213.3	1214.4	1200	1200
2023-12-01	1213.3	1214.4	1200	1200
2023-11-01	1213.3	1214.4	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	Western Cape Schools Individual Championship 2025 (U13 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
2	Central Karoo Schools Chess Trail 1 2025 (U13)	2025-02-22	2025-02-22	Standard	Central Karoo (WCK)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools Individual Championship 2025 (U13 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
2	Central Karoo Schools Chess Trail 1 2025 (U13)	2025-02-22	2025-02-22	Standard	Central Karoo (WCK)	5	5	3	Yes	Analysis
3	Central Karoo 2022 (U11 Boys)	2022-03-19	2022-03-19	Standard	Central Karoo (WCK)	5	5	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-18	rnd 5	type Standard	result 1	date 2025-05-18	rnd 6	type Standard	result 1
		Opponent Abrahams, F (Frielano)				Opponent Minnie, W (Wiaan)
2	2	Tournament Central Karoo Schools Chess Trail 1 2025				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent De Klerk, M (Miekie)				Opponent Pienaar, K (Keano)
3	2	Tournament Central Karoo 2022				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2022-03-19	rnd 5	type Standard	result 1	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Oerson, E (Enrique)				Opponent Jurries, K (Keagan)

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-18	rnd 5	type Standard	result 1	date 2025-05-18	rnd 6	type Standard	result 1
		Opponent Abrahams, F (Frielano)				Opponent Minnie, W (Wiaan)
2	2	Tournament Central Karoo Schools Chess Trail 1 2025				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent De Klerk, M (Miekie)				Opponent Pienaar, K (Keano)
3	2	Tournament Central Karoo 2022				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2022-03-19	rnd 5	type Standard	result 1	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Oerson, E (Enrique)				Opponent Jurries, K (Keagan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-18	rnd 5	type Standard	result 1	date 2025-05-18	rnd 6	type Standard	result 1
		Opponent Abrahams, F (Frielano)				Opponent Minnie, W (Wiaan)
2	2	Tournament Central Karoo Schools Chess Trail 1 2025				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent De Klerk, M (Miekie)				Opponent Pienaar, K (Keano)
3	2	Tournament Central Karoo 2022				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2022-03-19	rnd 5	type Standard	result 1	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Oerson, E (Enrique)				Opponent Jurries, K (Keagan)

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-18	rnd 5	type Standard	result 1	date 2025-05-18	rnd 6	type Standard	result 1
		Opponent Abrahams, F (Frielano)				Opponent Minnie, W (Wiaan)
2	2	Tournament Central Karoo Schools Chess Trail 1 2025				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent De Klerk, M (Miekie)				Opponent Pienaar, K (Keano)
3	2	Tournament Central Karoo 2022				Tournament Central Karoo Schools Chess Trail 1 2025
		date 2022-03-19	rnd 5	type Standard	result 1	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Oerson, E (Enrique)				Opponent Jurries, K (Keagan)

No games found.

#	Games	Start				End

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	Minnie ,W (Wiaan)	2	2	425	2	2	425	0	0	0	0	0	0
1	Minnie ,W (Wiaan)	2	1172.3	1597.3	2	1165.9	1597.3	0	0	0	0	0	0
2	Knapp ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Knapp ,L (Liam)	1	1360.1	935.1	1	1318	935.1	0	0	0	0	0	0
3	Willemse ,S (Schalk)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Willemse ,S (Schalk)	1	1475.4	1050.4	1	1459.9	1050.4	0	0	0	0	0	0
4	Stalmeester ,J (Jaiden)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Stalmeester ,J (Jaiden)	1	1179.8	754.8	1	1176.4	754.8	0	0	0	0	0	0
5	Jurries ,K (Keagan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Jurries ,K (Keagan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Eksteen ,T (Theunis)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Eksteen ,T (Theunis)	1	1267.7	842.7	1	1228.3	842.7	0	0	0	0	0	0
7	Hawker ,WL (Warren Lee)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Hawker ,WL (Warren Lee)	1	1156.2	731.2	1	1144	731.2	0	0	0	0	0	0
8	De Klerk ,M (Miekie)	1	1	425	1	1	425	0	0	0	0	0	0
8	De Klerk ,M (Miekie)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Bowman ,L (Lian)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Bowman ,L (Lian)	1	1322.5	897.5	1	1299.9	897.5	0	0	0	0	0	0
10	Gertse ,K (Kayden)	1	1	425	1	1	425	0	0	0	0	0	0
10	Gertse ,K (Kayden)	1	1200	1625	1	1200	1625	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

De Ridder, B (Bernard)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms