Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Ridder, B (Bernard)

Chess SA id

1120139177

FIDE id

Date of birth

2012-03-23 (U16)

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

Item	Main	Standard	Rapid	Blitz
Rating	1218.8	1221	1200	1200
Raw rating	1218.2	1220.3	1200	1200
Weighted rating	1218.8	1221	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	1218.8	1221.1	1200	1200
Analysis
Rating	1218.8	1221	1200	1200
Raw rating	1218.2	1220.3	1200	1200
Weighted rating	1218.8	1221	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	1218.8	1221.1	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1218.8	1221.1	1200	1200
Temp new rating +/-	0.1	0.1	0	0
Final new rating +/-	0.1	0.1	0	0
New rating	1218.8	1221.1	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
2026-01-01	1218.2	1220.3	1200	1200
2025-11-30	1218.2	1220.3	1200	1200
2025-11-01	1218.2	1220.3	1200	1200
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
2024-11-01	1213.3	1214.4	1200	1200
2024-07-01	1213.3	1214.4	1200	1200
2024-06-01	1213.3	1214.4	1200	1200
2024-05-01	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

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 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

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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