Chess South Africa Ratings Database

PLAYER PAGE

Personal

Drury, R (Riko)

Chess SA id

1120130328

FIDE id

Date of birth

2012-06-08 (U14)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1182.3	1190.8	1160.1	1200
Raw rating	1182.3	1190.8	1160.1	1200
Weighted rating	1177.5	1181.2	1159.6	1200
Weighted performance	1006.6	950.2	977.1	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.1	168	175.5	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0.1	0
New rating	1182.3	1190.8	1160.2	1200
Analysis
Rating	1182.3	1190.8	1160.1	1200
Raw rating	1182.3	1190.8	1160.1	1200
Weighted rating	1177.5	1181.2	1159.6
Weighted performance	1006.6	950.2	977.1
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	170.1	168	175.5	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	1182.3	1190.8	1160.1	1200
New weighted rating	1178.8	1183.1	1160.2	1200
New weighted performance	999.7	943.1	970.2	0
Temp new rating	1182.3	1190.8	1160.2	1200
Temp new rating +/-	0	0	0.1	0
Final new rating +/-	0	0	0.1	0
New rating	1182.3	1190.8	1160.2	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	6	0	6
	21	10	11
	21	10	11
	21	11	10
	17	12	5
History	101	58	43

Games since
	Main 27	Standard 10		Rapid 17		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	6	2	33.33	-141.7	1251.5	1109.8
Standard	0	0	0	0	0	0
Rapid	6	2	33.33	-141.7	1251.5	1109.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	101	39	38.61	-96.8	1208.6	1111.8
Standard	58	22.5	38.79	-95.3	1204.9	1109.6
Rapid	43	16.5	38.37	-98.8	1213.6	1114.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1182.3	1190.8	1160.1	1200
2025-09-30	1182.3	1190.8	1160.1	1200
2025-09-01	1182.3	1190.8	1160.1	1200
2025-08-01	1182.3	1190.8	1160.1	1200
2025-07-01	1182.3	1190.8	1160.1	1200
2025-06-01	1182.3	1190.8	1160.1	1200
2025-05-01	1182.3	1190.8	1160.1	1200
2025-04-01	1182.3	1190.8	1160.1	1200
2025-03-01	1182.3	1190.8	1160.1	1200
2025-02-01	1195.5	1190.8	1176.8	1200
2025-01-01	1195.5	1190.8	1176.8	1200
2024-12-01	1195.5	1190.8	1176.8	1200
2024-11-01	1195.5	1190.8	1176.8	1200
2024-10-01	1195.5	1190.8	1176.8	1200
2024-09-01	1183.4	1190.8	1140.8	1200
2024-08-01	1183.4	1190.8	1140.8	1200
2024-07-01	1111	1098.4	1140.8	1200
2024-09-01	1111	1098.4	1140.8	1200
2024-05-01	1111	1098.4	1140.8	1200
2024-04-01	1111	1098.4	1140.8	1200
2024-03-01	1136.4	1142.4	1122	1200
2024-02-01	1136.4	1142.4	1122	1200
2024-01-01	1136.4	1142.4	1122	1200
2023-12-01	1136.4	1142.4	1122	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	Overberg Schools - PS Trials (Region 1) 2025 (U13 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Schools - PS Trials (Region 1) 2025 (U13 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis
2	Kleinmond Chess Club Open 2024 (U12)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
3	Overberg Schools - Top Schools 2024 (U13 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
4	Overberg Schools - PS Closed 2024 (U13 Boys)	2024-03-16	2024-03-16	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
5	Overberg Schools - PS Trials Region 3 2024 (U13 Boys)	2024-03-02	2024-03-02	Rapid	Overberg (WOS)	5	5	2.5	Yes	Analysis
6	Overberg Top Schools 2023 (U11)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
7	Overberg School Chess Closed Tournament 2023 (U11 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
8	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
9	Overberg Schools Open Tournament 2023 (U12)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	1.5	Yes	Analysis
10	Kleinmond Open Tournament 2022 (C)	2022-09-10	2022-09-10	Rapid	Overberg (WOS)	5	5	0.5	Yes	Analysis
11	Western Cape Schools 2022 (U11 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
12	OCF Open 2022 (U12)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
13	Overberg Primary Schools Closed 2022 (U11 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
14	Overberg Schools Trials 2021 (U9)	2021-09-18	2021-09-18	Rapid	Overberg (WOS)	5	5	1.5	Yes	Analysis
15	OCF Club Champs 2021 (Juniors)	2021-06-05	2021-08-14	Standard	Overberg (WOS)	10	8	2	Yes	Analysis
16	Kleinmond Open 2021 (U10+U12)	2021-04-17	2021-04-17	Standard	Overberg (WOS)	5	4	0	Yes	Analysis
17	Overberg Closed 2020 (U9 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
18	OCF Chess Tournament 3 2020 (U10)	2020-03-07	2020-03-07	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
19	OCF Chess Tournament 2 2020 (U10)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	0.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament OCF Chess Tournament 3 2020				Tournament Overberg Closed 2020
		date 2020-03-07	rnd 5	type Standard	result 1	date 2020-03-15	rnd 4	type Standard	result 1
		Opponent Beukes, C (Chrizaan)				Opponent Swart, E (Eon)
2	4	Tournament Overberg Schools - PS Trials Region 3 2024				Tournament Overberg Schools - PS Closed 2024
		date 2024-03-02	rnd 3	type Rapid	result 0.5	date 2024-03-16	rnd 1	type Standard	result 1
		Opponent Jiri, H (Howard)				Opponent Booysen, J (Joshua)
3	4	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 2	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Maskell, T (Tao)				Opponent Kotze, M (Marlie)

#	Games	Start				End
1	5	Tournament Overberg Top Schools 2023				Tournament Overberg Schools - PS Closed 2024
		date 2023-08-05	rnd 2	type Standard	result 1	date 2024-03-16	rnd 1	type Standard	result 1
		Opponent Maskell, T (Tao)				Opponent Booysen, J (Joshua)
2	5	Tournament OCF Chess Tournament 3 2020				Tournament Overberg Closed 2020
		date 2020-03-07	rnd 5	type Standard	result 1	date 2020-03-15	rnd 4	type Standard	result 1
		Opponent Beukes, C (Chrizaan)				Opponent Swart, E (Eon)
3	3	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Franken, R (Roy)				Opponent Van Der Merwe, L (Luan Rudolf Johanne)

#	Games	Start				End
1	3	Tournament Overberg Schools - PS Trials Region 3 2024				Tournament Overberg Schools - PS Trials Region 3 2024
		date 2024-03-02	rnd 3	type Rapid	result 0.5	date 2024-03-02	rnd 5	type Rapid	result 1
		Opponent Jiri, H (Howard)				Opponent Kramer, S (Samuel)
2	3	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 3	type Rapid	result 1	date 2023-03-10	rnd 5	type Rapid	result 0.5
		Opponent Van Rensburg, L (Louis)				Opponent Van Der Merwe, D (Dante)
3	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Adolf, D (Damian)				Opponent Van Tonder, A (Alexander)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 2	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Maskell, T (Tao)				Opponent Kotze, M (Marlie)
2	3	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Franken, R (Roy)				Opponent Van Der Merwe, L (Luan Rudolf Johanne)
3	3	Tournament Overberg Schools - PS Trials Region 3 2024				Tournament Overberg Schools - PS Closed 2024
		date 2024-03-02	rnd 4	type Rapid	result 1	date 2024-03-16	rnd 1	type Standard	result 1
		Opponent Jiri, H (Henry)				Opponent Booysen, J (Joshua)

#	Games	Start				End
1	5	Tournament Overberg Top Schools 2023				Tournament Overberg Schools - PS Closed 2024
		date 2023-08-05	rnd 2	type Standard	result 1	date 2024-03-16	rnd 1	type Standard	result 1
		Opponent Maskell, T (Tao)				Opponent Booysen, J (Joshua)
2	3	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Franken, R (Roy)				Opponent Van Der Merwe, L (Luan Rudolf Johanne)
3	3	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 2	type Standard	result 1	date 2022-03-12	rnd 4	type Standard	result 1
		Opponent Groenewald, L (Lian)				Opponent Swart, E (Eon)

#	Games	Start				End
1	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Adolf, D (Damian)				Opponent Van Tonder, A (Alexander)
2	2	Tournament Kleinmond Chess Club Open 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-09-07	rnd 2	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Qhina, L (Lisakhanya)				Opponent Coetzee, L (Leon)
3	2	Tournament Overberg Schools - PS Trials Region 3 2024				Tournament Overberg Schools - PS Trials Region 3 2024
		date 2024-03-02	rnd 4	type Rapid	result 1	date 2024-03-02	rnd 5	type Rapid	result 1
		Opponent Jiri, H (Henry)				Opponent Kramer, S (Samuel)

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	Prinsloo ,L (Lyle)	5	0	-425	2	0	-425	3	0	-425	0	0	0
1	Prinsloo ,L (Lyle)	5	1355.3	930.3	2	1228.6	930.3	3	1346.6	930.3	0	0	0
2	Stuart ,G (Gabriel)	3	0	-425	2	0	-425	1	0	-425	0	0	0
2	Stuart ,G (Gabriel)	3	1250	825	2	1239.4	825	1	1200	825	0	0	0
3	Van Der Merwe ,D (Dante)	3	0.5	-283.3	1	0	-425	2	0.5	-212.5	0	0	0
3	Van Der Merwe ,D (Dante)	3	1108	824.6	1	1114.8	683	2	1186	895.5	0	0	0
4	Mfundisi ,M (Mlibo)	2	1	0	2	1	0	0	0	0	0	0	0
4	Mfundisi ,M (Mlibo)	2	1222.1	1222.1	2	1214.2	1222.1	0	0	0	0	0	0
5	Lebitsa ,P (Phuleng)	2	1	0	2	1	0	0	0	0	0	0	0
5	Lebitsa ,P (Phuleng)	2	1200	1200	2	1200	1200	0	0	0	0	0	0
6	Scholtz ,F (Francois)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Scholtz ,F (Francois)	2	1242	817	2	1240.8	817	0	0	0	0	0	0
7	Johnson ,G (Gabriella)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Johnson ,G (Gabriella)	2	1100.1	675.1	2	1086.8	675.1	0	0	0	0	0	0
8	Swart ,E (Eon)	2	2	425	2	2	425	0	0	0	0	0	0
8	Swart ,E (Eon)	2	1190.2	1615.2	2	1187.2	1615.2	0	0	0	0	0	0
9	Pieper ,Q (Qiella)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Pieper ,Q (Qiella)	2	1208.9	783.9	2	1210.8	783.9	0	0	0	0	0	0
10	Robertshaw ,R (Ripley)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Robertshaw ,R (Ripley)	2	1190.3	765.3	2	1188.4	765.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Drury, R (Riko)

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