Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bowden, R (Ryan)

Chess SA id

1110131950

FIDE id

Date of birth

2011-07-12 (U16)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1162.7	1130.6	1209.8	1200
Raw rating	1137.3	1130.6	1160.3	1200
Weighted rating	1162.7	1130.6	1209.8	1200
Weighted performance	929.5	0	999.9	0
Floor	737.2	742.4	754.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	181.3	183	175.5	165.8
Highest rating	1365.4 2020-02-01	1356.3 2020-02-01	1254.8 2024-12-01	1200 2018-10-01
Highest raw rating	1237.2 2020-03-01	1242.4 2020-03-01	1254.8 2024-12-01	1200 2024-02-01
Highest weighted rating	1237.2 2022-01-01	1242.4 2022-02-01	1254.8 2025-02-01	1200 2018-10-01
Highest weighted performance	1365.4 2020-02-01	1356.3 2020-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2	0	-4	0
New rating	1160.7	1130.6	1205.8	1200
Analysis
Rating	1162.7	1130.6	1209.8	1200
Raw rating	1137.3	1130.6	1160.3	1200
Weighted rating	1162.7	1130.6	1209.8
Weighted performance	929.5	0	999.9
K-factor	36	36	36	36
Floor	737.2	742.4	754.8	700
Max/Min rating change allowed	181.3	183	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	1137.3	1130.6	1160.3	1200
New weighted rating	1160.7	1130.6	1205.8	1200
New weighted performance	923.1	0	993	0
Temp new rating	1160.7	1130.6	1205.8	1200
Temp new rating +/-	-2	0	-4	0
Final new rating +/-	-2	0	-4	0
New rating	1160.7	1130.6	1205.8	1200
New K-factor	36	36	36	36
New floor	737.2	742.4	754.8	700

Item	Main	Standard	Rapid
	0	0	0
	12	0	12
	14	0	14
	10	5	5
	15	6	9
	0	0	0
History	62	17	45

Games since
	Main 26	Standard 0		Rapid 26		Blitz 0
Gender	Male
Age group	U16
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1598		786		191
Male	1230		591		133
U16	263		125		33
U16 Male	203		92		23
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	12	1	8.33	-354.2	1261.8	907.7
Standard	0	0	0	0	0	0
Rapid	12	1	8.33	-354.2	1261.8	907.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	62	22.5	36.29	-116.5	1241.5	1125
Standard	17	6	35.29	-125	1242.4	1117.4
Rapid	45	16.5	36.67	-113.3	1241.2	1127.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1137.3	1130.6	1160.3	1200
2025-09-30	1137.3	1130.6	1160.3	1200
2025-09-01	1137.3	1130.6	1160.3	1200
2025-08-01	1167.2	1130.6	1218.2	1200
2025-07-01	1168.2	1130.6	1221	1200
2025-06-01	1167.4	1130.6	1219.7	1200
2025-05-01	1166.7	1130.6	1218.4	1200
2025-04-01	1165.8	1130.6	1216.9	1200
2025-03-01	1164.2	1130.6	1213.9	1200
2025-02-01	1185.5	1130.6	1254.8	1200
2025-01-01	1185.5	1130.5	1254.8	1200
2024-12-01	1185.5	1130.5	1254.8	1200
2024-11-01	1169.4	1130.5	1220.6	1200
2024-10-01	1169.4	1130.5	1220.6	1200
2024-09-01	1169.4	1130.5	1220.6	1200
2024-08-01	1169.4	1130.5	1220.6	1200
2024-07-01	1169.4	1130.5	1220.6	1200
2024-09-01	1169.4	1130.5	1220.6	1200
2024-05-01	1169.4	1130.5	1220.6	1200
2024-04-01	1169.4	1130.5	1220.6	1200
2024-03-01	1183.7	1130.5	1250.8	1200
2024-02-01	1132.9	1130.5	1160.8	1200
2024-01-01	1132.9	1130.5	1160.8	1200
2023-12-01	1132.9	1130.5	1160.8	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	Pedro Booyse Top Schools 2025 (U19)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	6	4	0	Yes	Analysis
2	Upper West Coast Top Schools 2025 (U17+U19)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	3	0	Yes	Analysis
3	Upper West Coast Presrige 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Pedro Booyse Top Schools 2025 (U19)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	6	4	0	Yes	Analysis
2	Upper West Coast Top Schools 2025 (U17+U19)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	3	0	Yes	Analysis
3	Upper West Coast Presrige 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	1	Yes	Analysis
4	West Coast Grand Challange League 2024 (PS Development)	2024-10-26	2024-10-26	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
5	West Coast Schools Chess Prestige Championships 2024 (U13 Boys)	2024-03-09	2024-03-09	Rapid	West Coast (WCU)	5	4	1	Yes	Analysis
6	Bo-Weskus Skole Prestige 2024 (O13 Seuns)	2024-02-10	2024-02-10	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
7	Pedro Booyse Top Schools 2023 (U13)	2023-07-29	2023-07-29	Standard	West Coast (WCU)	5	5	2	Yes	Analysis
8	Upper West Coast Top Schools Championship 2023 (U13)	2023-06-10	2023-06-10	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
9	Pedro Booyse Top Schools 2022 (U11 Open)	2022-07-23	2022-07-23	Standard	West Coast (WCU)	6	6	0	Yes	Analysis
10	Bo-Weskus Top Skole 2022 (O11)	2022-06-11	2022-06-11	Rapid	West Coast (WCU)	5	4	1.5	Yes	Analysis
11	Bo Weskus Skole Skaak Prestige (O11 Seuns)	2022-03-19	2022-03-19	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
12	West Coast Schools Prestige 2020 (U9 Boys)	2020-03-07	2020-03-07	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
13	Bo-Weskus Skole Prestige 2020 (O9 Seuns)	2020-02-15	2020-02-15	Standard	West Coast (WCU)	6	6	4	Yes	Analysis

#	Games	Start				End
1	5	Tournament West Coast Schools Chess Prestige Championships 2024				Tournament West Coast Grand Challange League 2024
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2024-10-26	rnd 4	type Rapid	result 0.5
		Opponent Fortuin, D (Devante)				Opponent Van Der Schyff, B (Brian)
2	4	Tournament Pedro Booyse Top Schools 2023				Tournament Bo-Weskus Skole Prestige 2024
		date 2023-07-29	rnd 5	type Standard	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Boyder, H (Henko)				Opponent Bonn, L (Landon)
3	2	Tournament Bo-Weskus Top Skole 2022				Tournament Bo-Weskus Top Skole 2022
		date 2022-06-11	rnd 1	type Rapid	result 0.5	date 2022-06-11	rnd 2	type Rapid	result 1
		Opponent Fortuin, T (Tashnic)				Opponent Joseph, N (Nashadine)

#	Games	Start				End
1	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 5	type Standard	result 1	date 2020-02-15	rnd 6	type Standard	result 1
		Opponent Mabala, L (Lubabalo)				Opponent Skippers, P (Paul)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Smith, D (Dana)				Opponent De Vries, G (Gustav)
3	1	Tournament Pedro Booyse Top Schools 2023				Tournament Pedro Booyse Top Schools 2023
		date 2023-07-29	rnd 5	type Standard	result 1	date 2023-07-29	rnd 5	type Standard	result 1
		Opponent Boyder, H (Henko)				Opponent Boyder, H (Henko)

#	Games	Start				End
1	5	Tournament West Coast Schools Chess Prestige Championships 2024				Tournament West Coast Grand Challange League 2024
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2024-10-26	rnd 4	type Rapid	result 0.5
		Opponent Fortuin, D (Devante)				Opponent Van Der Schyff, B (Brian)
2	4	Tournament Upper West Coast Top Schools Championship 2023				Tournament Bo-Weskus Skole Prestige 2024
		date 2023-06-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Koopman, A (Anjanique)				Opponent Bonn, L (Landon)
3	2	Tournament Bo-Weskus Top Skole 2022				Tournament Bo-Weskus Top Skole 2022
		date 2022-06-11	rnd 1	type Rapid	result 0.5	date 2022-06-11	rnd 2	type Rapid	result 1
		Opponent Fortuin, T (Tashnic)				Opponent Joseph, N (Nashadine)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Pedro Booyse Top Schools 2023				Tournament Bo-Weskus Skole Prestige 2024
		date 2023-07-29	rnd 5	type Standard	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Boyder, H (Henko)				Opponent Bonn, L (Landon)
2	2	Tournament West Coast Schools Chess Prestige Championships 2024				Tournament West Coast Grand Challange League 2024
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Fortuin, D (Devante)				Opponent Coakley, S (Shaigan)
3	2	Tournament Bo Weskus Skole Skaak Prestige				Tournament Bo Weskus Skole Skaak Prestige
		date 2022-03-19	rnd 1	type Rapid	result 1	date 2022-03-19	rnd 2	type Rapid	result 1
		Opponent Mabalo, L (Lubabalo)				Opponent Van Rooy, E (Emerson)

#	Games	Start				End
1	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 5	type Standard	result 1	date 2020-02-15	rnd 6	type Standard	result 1
		Opponent Mabala, L (Lubabalo)				Opponent Skippers, P (Paul)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Smith, D (Dana)				Opponent De Vries, G (Gustav)
3	1	Tournament Pedro Booyse Top Schools 2023				Tournament Pedro Booyse Top Schools 2023
		date 2023-07-29	rnd 5	type Standard	result 1	date 2023-07-29	rnd 5	type Standard	result 1
		Opponent Boyder, H (Henko)				Opponent Boyder, H (Henko)

#	Games	Start				End
1	4	Tournament Upper West Coast Top Schools Championship 2023				Tournament Bo-Weskus Skole Prestige 2024
		date 2023-06-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Koopman, A (Anjanique)				Opponent Bonn, L (Landon)
2	2	Tournament West Coast Schools Chess Prestige Championships 2024				Tournament West Coast Grand Challange League 2024
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Fortuin, D (Devante)				Opponent Coakley, S (Shaigan)
3	2	Tournament Bo Weskus Skole Skaak Prestige				Tournament Bo Weskus Skole Skaak Prestige
		date 2022-03-19	rnd 1	type Rapid	result 1	date 2022-03-19	rnd 2	type Rapid	result 1
		Opponent Mabalo, L (Lubabalo)				Opponent Van Rooy, E (Emerson)

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	Maletta ,S (Sherevitho)	4	1	-212.5	2	0	-425	2	1	0	0	0	0
1	Maletta ,S (Sherevitho)	4	1312.5	1100	2	1263.6	887.5	2	1345.6	1312.5	0	0	0
2	Oosthuizen ,B (Brett)	3	0	-425	2	0	-425	1	0	-425	0	0	0
2	Oosthuizen ,B (Brett)	3	1230	805	2	1231.2	805	1	1209.6	805	0	0	0
3	Tieties ,B (Beauton)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Tieties ,B (Beauton)	2	1324.6	899.6	2	1233.2	899.6	0	0	0	0	0	0
4	Dirks ,R (Ryan)	2	0	-425	1	0	-425	1	0	-425	0	0	0
4	Dirks ,R (Ryan)	2	1241.2	816.2	1	1229.6	816.2	1	1359.4	816.2	0	0	0
5	Booysen ,C (Chadlin)	2	0	-425	0	0	0	2	0	-425	0	0	0
5	Booysen ,C (Chadlin)	2	1438.4	1013.4	0	0	0	2	1477.6	1013.4	0	0	0
6	Hausiku ,M (Marco)	2	0	-425	0	0	0	2	0	-425	0	0	0
6	Hausiku ,M (Marco)	2	1392.1	967.1	0	0	0	2	1391.3	967.1	0	0	0
7	Nabo ,B (Banele)	2	0	-425	0	0	0	2	0	-425	0	0	0
7	Nabo ,B (Banele)	2	1207.5	782.5	0	0	0	2	1212.7	782.5	0	0	0
8	Bester ,J (Juandre)	2	0	-425	0	0	0	2	0	-425	0	0	0
8	Bester ,J (Juandre)	2	1264.1	839.1	0	0	0	2	1270.9	839.1	0	0	0
9	Diergaardt ,M (Maczayn)	2	0	-425	0	0	0	2	0	-425	0	0	0
9	Diergaardt ,M (Maczayn)	2	1180	755	0	0	0	2	1167.6	755	0	0	0
10	De Vries ,G (Gustav)	1	1	425	1	1	425	0	0	0	0	0	0
10	De Vries ,G (Gustav)	1	1221	1646	1	1178.4	1646	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

Bowden, R (Ryan)

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