Chess South Africa Ratings Database

PLAYER PAGE

Personal

Barker, R (Ryan)

Chess SA id

110091691

FIDE id

Date of birth

2010-09-17 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-07-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1362

Item	Main	Standard	Rapid	Blitz
Rating	1414.3	1418.9	1185.4	1168.4
Raw rating	1414.3	1418.9	1185.4	1168.4
Weighted rating	1414.1	1418.8	1184	1166.4
Weighted performance	1302.1	1297.9	0	0
Floor	960.8	960.3	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	122.2	121.4	169.3	173.5
Highest rating	1460.8 2024-02-01	1464.3 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1460.8 2024-02-01	1460.3 2024-02-01	1200 2024-02-01	1200 2020-01-01
Highest weighted rating	1460.8 2024-09-01	1460.3 2024-09-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1422.9 2023-03-01	1464.3 2023-07-01	1200 2020-01-01	1200 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1414.3	1418.9	1185.4	1168.4
Analysis
Rating	1414.3	1418.9	1185.4	1168.4
Raw rating	1414.3	1418.9	1185.4	1168.4
Weighted rating	1414.1	1418.8	1184
Weighted performance	1302.1	1297.9	0
K-factor	32	32	36	36
Floor	960.8	960.3	700	700
Max/Min rating change allowed	122.2	121.4	169.3	173.5
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	1414.3	1418.9	1185.4	1168.4
New weighted rating	1413.9	1418.7	1184	1166.8
New weighted performance	1301.6	1297.4	0	0
Temp new rating	1414.3	1418.9	1185.4	1168.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1414.3	1418.9	1185.4	1168.4
New K-factor	32	32	36	36
New floor	960.8	960.3	700	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	25	25	0	0
	53	40	5	8
	55	47	0	8
	46	46	0	0
	0	0	0	0
History	223	202	5	16

Games since
	Main 78	Standard 65		Rapid 5		Blitz 8
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2019		714		233
Male	1673		584		194
U16	297		96		31
U16 Male	233		72		24
Standard
	RSA		Province		Region
Overall	1861		694		216
Male	1535		566		180
U16	274		92		30
U16 Male	214		68		24
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
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	25	14.5	58	68	1339.1	1407.1
Standard	25	14.5	58	68	1339.1	1407.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	218	116.5	53.44	29.2	1271.8	1301.1
Standard	197	108.5	55.08	43.1	1264.1	1307.2
Rapid	5	2	40	-85	1428.1	1343.1
Blitz	16	6	37.5	-106.2	1318.7	1212.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1414.3	1418.9	1185.4	1168.4
2025-09-01	1414.3	1418.9	1185.4	1168.4
2025-08-01	1414.3	1418.9	1185.4	1168.4
2025-07-01	1414.8	1419.1	1185.4	1168.4
2025-06-01	1414.8	1418.5	1185.4	1168.4
2025-05-01	1443.5	1448.8	1185.4	1168.4
2025-04-01	1443.5	1448.8	1185.4	1168.4
2025-03-01	1443.5	1448.8	1185.4	1168.4
2025-02-01	1408	1411.5	1185.3	1168.4
2025-01-01	1388.2	1388.9	1180.2	1168.4
2024-12-01	1382.5	1387	1180.2	1168.4
2024-11-01	1382.5	1387	1180.2	1168.4
2024-10-01	1382.5	1387	1180.2	1168.4
2024-09-01	1411.7	1423.5	1180.2	1168.4
2024-08-01	1385.5	1398.5	1180.2	1168.4
2024-07-01	1400.5	1398.5	1180.2	1155.2
2024-06-01	1414.3	1417.1	1180.2	1155.2
2024-08-01	1426.3	1435	1180.2	1155.2
2024-04-01	1426.3	1435	1180.2	1155.2
2024-03-01	1426.3	1435	1180.2	1155.2
2024-02-01	1460.8	1460.3	1200	1155.2
2024-01-01	1433.5	1431.2	1200	1155.2
2023-12-01	1433.5	1431.2	1200	1155.2
2023-11-01	1433.5	1431.2	1200	1155.2

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	South African Open 2025 (U16 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
2	JMC Helpmekaar 2025 (B)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
3	CPH May 2025 (B)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Grey College Team Championship 2025 (A)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
5	JMC Kick Off 2025 (C)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	South African Open 2025 (U16 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
2	JMC Helpmekaar 2025 (B)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
3	CPH May 2025 (B)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	Grey College Team Championship 2025 (A)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
5	JMC Kick Off 2025 (C)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
6	Gauteng Inter-Region at UJ 2024 (U16 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
7	Gauteng Schools Individuals Finals 2024 (U15 Boys)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	JMC Closed 2024 (C)	2024-08-09	2024-08-11	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
9	Helpmekaar Kollege Blitz Chess Invitational 2024 (A)	2024-07-27	2024-07-27	Blitz	Johannesburg Metro (GJM)	9	8	4	Yes	Analysis
10	JMC Trinityhouse Little Falls 2024 (C)	2024-06-02	2024-06-02	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
11	JMC Helpmekaar Kollege Tournament 2024 (C)	2024-05-04	2024-05-04	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
12	Gear Up Mzansi Rapid 2024 (Intermediate)	2024-02-17	2024-02-17	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
13	Grey College Team Championship 2024 (B)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
14	2024 Gauteng Inter-Region Chess Championship (U14B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
15	JMC Kick Off Tournament 2024 (C)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
16	2023 Gauteng Top Schools (U13 Mixed)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
17	JMC Closed Aug 2023 (U14)	2023-08-04	2023-08-06	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
18	ThinkChess Tournament 29 July 2023	2023-07-29	2023-07-29	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
19	JMC Trinity Little Falls 2023 (C)	2023-07-02	2023-07-02	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
20	JMC - The Higher Ground Restaurant 2nd Blitz Event 2023	2023-07-30	2023-07-30	Blitz	Johannesburg Metro (GJM)	7	0	0	No	Analysis
21	Mzansi Fide Open 2023 (Intermediate)	2023-04-27	2023-05-01	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
22	JNW Open - Trinityhouse Little Falls 2023 (C)	2023-05-13	2023-05-13	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
23	Gauteng Schools Individual Finals 2023 (U13 Boys)	2023-05-26	2023-05-26	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
24	Mzansi Open Blitz 2023	2023-04-29	2023-04-29	Blitz	Johannesburg Metro (GJM)	9	8	2	Yes	Analysis
25	JNW Open - Crawford 2023 (C)	2023-03-04	2023-03-04	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
26	JMC 1 St Peters 2023 (C)	2023-03-18	2023-03-18	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
27	2022 South African Junior Team Chess Championships (U14 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	5	Yes	Analysis
28	JMC 3rd Trials 2022 (C)	2022-09-11	2022-09-11	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
29	JMC Womens Day 2022 (C)	2022-08-06	2022-08-07	Standard	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis
30	JMC 2nd Trials 2022 (C)	2022-08-27	2022-08-27	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
31	2022 Gauteng Schools Team Championships (U13 Open)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
32	2022 Jacaranda Round Robin (T)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
33	2022 Gauteng Schools Individual Chess Championship (U13 Boys)	2022-06-18	2022-06-18	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
34	JNW Trinityhouse LF 2022 (Contenders)	2022-03-12	2022-03-12	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
35	JMC Charterhouse Open 2022 (C)	2022-02-12	2022-02-12	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
36	JNW Club - Trinityhouse Randpark Ridge Open 2020 (D)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
37	JNW Club - Bryanston Open1 2020 (D)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
38	2019 South African Junior Team Championships (U10D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
39	JNW Club - Maragon Open 2019 (E)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
40	JHB Metro Closed 2019 (U10)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	5	0	Yes	Analysis
41	JNW Club - Unika Scholar 2019 (U10)	2019-06-01	2019-06-01	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
42	JNW Club - Trinityhouse Randpark Ridge Open 2019 (E)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
43	JNW Club - Trinityhouse Little Falls Open 2019 (E)	2019-02-23	2019-02-23	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis

#	Games	Start				End
1	9	Tournament Gauteng Inter-Region at UJ 2024				Tournament Grey College Team Championship 2025
		date 2024-12-08	rnd 4	type Standard	result 1	date 2025-02-21	rnd 2	type Standard	result 0.5
		Opponent Mochoanchoeng, T (Tshego)				Opponent Madyo, M (Mbuyiselo)
2	8	Tournament 2022 South African Junior Team Chess Championships				Tournament JNW Open - Crawford 2023
		date 2022-12-04	rnd 2	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Veldtman, J (Juan-Aiden)				Opponent Steyn, A (Anneke)
3	7	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-13	rnd 2	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Grobbelaar, H (Hannes)				Opponent Wessels, T (Theodore)

#	Games	Start				End
1	9	Tournament Gauteng Inter-Region at UJ 2024				Tournament Grey College Team Championship 2025
		date 2024-12-08	rnd 4	type Standard	result 1	date 2025-02-21	rnd 2	type Standard	result 0.5
		Opponent Mochoanchoeng, T (Tshego)				Opponent Madyo, M (Mbuyiselo)
2	8	Tournament 2022 South African Junior Team Chess Championships				Tournament JNW Open - Crawford 2023
		date 2022-12-04	rnd 2	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Veldtman, J (Juan-Aiden)				Opponent Steyn, A (Anneke)
3	7	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-13	rnd 2	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Grobbelaar, H (Hannes)				Opponent Wessels, T (Theodore)

#	Games	Start				End
1	1	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 3	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Kojetin, C (Connor)				Opponent Kojetin, C (Connor)
2	1	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 1	type Rapid	result 1	date 2024-02-17	rnd 1	type Rapid	result 1
		Opponent Wessels, T (Theodore)				Opponent Wessels, T (Theodore)

#	Games	Start				End
1	2	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 6	type Blitz	result 1	date 2024-07-27	rnd 7	type Blitz	result 1
		Opponent Yaregal, A (Aaron)				Opponent Sheik, M (Mohammed)
2	2	Tournament Mzansi Open Blitz 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2023-04-29	rnd 9	type Blitz	result 1	date 2024-07-27	rnd 1	type Blitz	result 1
		Opponent Westoby, A (Adam)				Opponent Iya, K (Kajua)
3	1	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 4	type Blitz	result 1	date 2024-07-27	rnd 4	type Blitz	result 1
		Opponent Du Toit, M (Megan)				Opponent Du Toit, M (Megan)

#	Games	Start				End
1	8	Tournament Gauteng Inter-Region at UJ 2024				Tournament Grey College Team Championship 2025
		date 2024-12-08	rnd 4	type Standard	result 1	date 2025-02-21	rnd 1	type Standard	result 1
		Opponent Mochoanchoeng, T (Tshego)				Opponent Moalusi, P (Palesa)
2	8	Tournament 2022 South African Junior Team Chess Championships				Tournament JNW Open - Crawford 2023
		date 2022-12-04	rnd 2	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Veldtman, J (Juan-Aiden)				Opponent Steyn, A (Anneke)
3	7	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-13	rnd 2	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Grobbelaar, H (Hannes)				Opponent Wessels, T (Theodore)

#	Games	Start				End
1	8	Tournament Gauteng Inter-Region at UJ 2024				Tournament Grey College Team Championship 2025
		date 2024-12-08	rnd 4	type Standard	result 1	date 2025-02-21	rnd 1	type Standard	result 1
		Opponent Mochoanchoeng, T (Tshego)				Opponent Moalusi, P (Palesa)
2	8	Tournament 2022 South African Junior Team Chess Championships				Tournament JNW Open - Crawford 2023
		date 2022-12-04	rnd 2	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Veldtman, J (Juan-Aiden)				Opponent Steyn, A (Anneke)
3	7	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-13	rnd 2	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Grobbelaar, H (Hannes)				Opponent Wessels, T (Theodore)

#	Games	Start				End
1	1	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 3	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Kojetin, C (Connor)				Opponent Kojetin, C (Connor)
2	1	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 1	type Rapid	result 1	date 2024-02-17	rnd 1	type Rapid	result 1
		Opponent Wessels, T (Theodore)				Opponent Wessels, T (Theodore)

#	Games	Start				End
1	2	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 6	type Blitz	result 1	date 2024-07-27	rnd 7	type Blitz	result 1
		Opponent Yaregal, A (Aaron)				Opponent Sheik, M (Mohammed)
2	2	Tournament Mzansi Open Blitz 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2023-04-29	rnd 9	type Blitz	result 1	date 2024-07-27	rnd 1	type Blitz	result 1
		Opponent Westoby, A (Adam)				Opponent Iya, K (Kajua)
3	1	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 4	type Blitz	result 1	date 2024-07-27	rnd 4	type Blitz	result 1
		Opponent Du Toit, M (Megan)				Opponent Du Toit, M (Megan)

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	Maharaj ,A (Arya)	5	2	-85	5	2	-85	0	0	0	0	0	0
1	Maharaj ,A (Arya)	5	1207.1	1122.1	5	1196.3	1122.1	0	0	0	0	0	0
2	Sehloho ,T (Thandolwethu)	5	5	425	5	5	425	0	0	0	0	0	0
2	Sehloho ,T (Thandolwethu)	5	1339.8	1764.8	5	1333.7	1764.8	0	0	0	0	0	0
3	Bijker ,W (Waldo)	5	1	-255	4	1	-212.5	1	0	-425	0	0	0
3	Bijker ,W (Waldo)	5	1357	1102	4	1318.2	1144.5	1	1190.8	932	0	0	0
4	Barradas ,K (Keanu)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Barradas ,K (Keanu)	3	1264	839	3	1247.2	839	0	0	0	0	0	0
5	Mupalala ,K (Kenzo)	3	0	-425	3	0	-425	0	0	0	0	0	0
5	Mupalala ,K (Kenzo)	3	1261.6	836.6	3	1254.3	836.6	0	0	0	0	0	0
6	Botha ,A (Andrea)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Botha ,A (Andrea)	3	1252.6	1394.3	3	1250.1	1394.3	0	0	0	0	0	0
7	Bloem ,J (James)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
7	Bloem ,J (James)	3	1396.6	1538.3	3	1385.2	1538.3	0	0	0	0	0	0
8	Badenhorst ,M (Matthew)	3	0	-425	2	0	-425	1	0	-425	0	0	0
8	Badenhorst ,M (Matthew)	3	1433.2	1008.2	2	1405.1	1008.2	1	1326	1008.2	0	0	0
9	Wessels ,T (Theodore)	3	3	425	2	2	425	1	1	425	0	0	0
9	Wessels ,T (Theodore)	3	1406.6	1831.6	2	1407.8	1831.6	1	1200	1831.6	0	0	0
10	Hoek ,L (Lore)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Hoek ,L (Lore)	2	1234.8	1447.3	2	1221.9	1447.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Barker, R (Ryan)

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Norms