Chess South Africa Ratings Database

PLAYER PAGE

Personal

Donald, R (Ryan)

Chess SA id

105053196

FIDE id

Date of birth

2005-11-08 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1406.6	1401.5	963.6	1049.6
Raw rating	1406.6	1401.5	963.6	1049.6
Weighted rating	1404.9	1401.3	963.6	1031.4
Weighted performance	1024.8	893.9	0	0
Floor	906.6	901.5	500	549.6
K-factor	32	32	40	40
Min/Max rating change allowed	123.5	124.4	232.2	205.4
Highest rating	1467.9 2018-01-01	1467.9 2018-01-01	1200 2020-01-01	1221.9 2024-07-01
Highest raw rating	1406.6 2024-08-01	1401.5 2024-03-01	963.6 2024-02-01	1049.6 2024-08-01
Highest weighted rating	1403.9 2025-08-01	1401.2 2025-08-01	963.6 2024-11-01	1049.6 2024-11-01
Highest weighted performance	1467.9 2018-01-01	1467.9 2018-01-01	1200 2020-01-01	1221.9 2024-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1406.6	1401.5	963.6	1049.6
Analysis
Rating	1406.6	1401.5	963.6	1049.6
Raw rating	1406.6	1401.5	963.6	1049.6
Weighted rating	1404.9	1401.3	963.6
Weighted performance	1024.8	893.9	0
K-factor	32	32	40	40
Floor	906.6	901.5	500	549.6
Max/Min rating change allowed	123.5	124.4	232.2	205.4
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	1406.6	1401.5	963.6	1049.6
New weighted rating	1405.3	1401.4	963.6	1035
New weighted performance	1024.3	893.4	0	0
Temp new rating	1406.6	1401.5	963.6	1049.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1406.6	1401.5	963.6	1049.6
New K-factor	32	32	40	40
New floor	906.6	901.5	500	549.6

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	14	5	0	9
	5	5	0	0
	5	5	0	0
	0	0	0	0
History	347	312	26	9

Games since
	Main 14	Standard 5		Rapid 0		Blitz 9
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	128	69.5	54.3	36.5	1213.8	1250.3
Standard	114	61.5	53.95	33.6	1194.7	1228.3
Rapid	5	2	40	-85	1401	1316
Blitz	9	6	66.67	141.7	1350.8	1492.5

Date	Main	Standard	Rapid	Blitz
2025-09-30	1406.6	1401.5	963.6	1049.6
2025-09-01	1406.6	1401.5	963.6	1049.6
2025-08-01	1406.6	1401.5	963.6	1049.6
2025-07-01	1406.6	1401.5	963.6	1049.6
2025-06-01	1406.6	1401.5	963.6	1049.6
2025-05-01	1406.6	1401.5	963.6	1049.6
2025-04-01	1406.6	1401.5	963.6	1049.6
2025-03-01	1406.6	1401.5	963.6	1049.6
2025-02-01	1406.6	1401.5	963.6	1049.6
2025-01-01	1406.6	1401.5	963.6	1049.6
2024-12-01	1406.6	1401.5	963.6	1049.6
2024-11-01	1406.6	1401.5	963.6	1049.6
2024-10-01	1406.6	1401.5	963.6	1049.6
2024-09-01	1406.6	1401.5	963.6	1049.6
2024-08-01	1406.6	1401.5	963.6	1049.6
2024-07-01	1397.1	1401.5	963.6	928
2024-06-01	1397.1	1401.5	963.6	928
2024-08-01	1397.1	1401.5	963.6	928
2024-04-01	1397.1	1401.5	963.6	928
2024-03-01	1397.1	1401.5	963.6	928
2024-02-01	1388.7	1396.8	963.6	928
2024-01-01	1388.7	1396.8	963.6	928
2023-12-01	1388.7	1396.8	963.6	928
2023-11-01	1388.7	1396.8	963.6	928

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	Helpmekaar Kollege Blitz Chess Invitational 2024 (A)	2024-07-27	2024-07-27	Blitz	Johannesburg Metro (GJM)	9	9	6	Yes	Analysis
2	Grey College Team Championship 2024 (A)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
3	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
4	Grey College Team Championship 2022 (B)	2022-02-18	2022-02-19	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
5	JNW Club - Junior A High School 2020	2020-03-07	2020-03-07	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
6	JNW Club - Trinityhouse Randpark Ridge Open 2020 (B)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
7	JNW Club - Bryanston Open1 2020 (B)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
8	2019 South African Junior Team Championships (U16B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
9	JHB Metro Closed 2019 (U16)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
10	JNW Club - Hoerskool Linden 2019 (B)	2019-06-15	2019-06-15	Standard	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis
11	JNW Club - Bryanston Open 2 2019 (B)	2019-05-11	2019-05-11	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
12	JNW Club - Trinityhouse Randpark Ridge Open 2019 (B)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
13	2018 Tshwane Inter Region (U14D)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
14	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
15	JHB Metro Junior Closed 2018 (U14)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
16	2018 Swartkop Open (C)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
17	2018 Gauteng Secondary Schools Individual Chess Championships (U13 Boys)	2018-05-25	2018-05-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
18	JNW Club - Bryanston Open 2 2018 (B)	2018-05-05	2018-05-05	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
19	D10 Schools Individuals 2018 (U13 Boys)	2018-05-18	2018-05-18	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
20	JNW Club - Linden Open 2018 (B)	2018-04-14	2018-04-14	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
21	JNW Club - Trinityhouse Randpark Ridge Open 2018 (B)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
22	JNW Club - Northriding College Open 2018 (A)	2018-03-09	2018-03-10	Standard	Johannesburg Metro (GJM)	6	6	1	Yes	Analysis
23	JNW Club - Trinityhouse Little Falls Open 2018 (B)	2018-02-16	2018-02-17	Standard	Johannesburg Metro (GJM)	6	4	1.5	Yes	Analysis
24	South African Junior Team Championships 2017 (U14B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	6.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2017				Tournament JNW Club - Trinityhouse Little Falls Open 2018
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-02-17	rnd 4	type Standard	result 1
		Opponent Du Preez, S (Sune)				Opponent De Wet, CJ (Christiaan)
2	8	Tournament 2018 Swartkop Open				Tournament JHB Metro Junior Closed 2018
		date 2018-06-23	rnd 3	type Standard	result 0.5	date 2018-07-29	rnd 5	type Standard	result 1
		Opponent Reyneke, T (Talia)				Opponent Van Deventer, WG (Wilrich)
3	7	Tournament Grey College Team Championship 2022				Tournament Grey College Team Championship 2024
		date 2022-02-19	rnd 5	type Standard	result 1	date 2024-02-23	rnd 1	type Standard	result 1
		Opponent Brink, E (Edwill)				Opponent Grobler, DDI (Donovan Denzel Izak)

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2017				Tournament JNW Club - Trinityhouse Little Falls Open 2018
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-02-17	rnd 4	type Standard	result 1
		Opponent Du Preez, S (Sune)				Opponent De Wet, CJ (Christiaan)
2	8	Tournament 2018 Swartkop Open				Tournament JHB Metro Junior Closed 2018
		date 2018-06-23	rnd 3	type Standard	result 0.5	date 2018-07-29	rnd 5	type Standard	result 1
		Opponent Reyneke, T (Talia)				Opponent Van Deventer, WG (Wilrich)
3	7	Tournament Grey College Team Championship 2022				Tournament Grey College Team Championship 2024
		date 2022-02-19	rnd 5	type Standard	result 1	date 2024-02-23	rnd 1	type Standard	result 1
		Opponent Brink, E (Edwill)				Opponent Grobler, DDI (Donovan Denzel Izak)

#	Games	Start				End
1	2	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Mulenga, M (Musa)				Opponent Yeh, E (Enxian)

#	Games	Start				End
1	3	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 5	type Blitz	result 1	date 2024-07-27	rnd 7	type Blitz	result 1
		Opponent Gwaza, D (Desire)				Opponent Meyer, J (Jason)
2	1	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 9	type Blitz	result 1	date 2024-07-27	rnd 9	type Blitz	result 1
		Opponent Sithole, L (Lwandle Gidione)				Opponent Sithole, L (Lwandle Gidione)
3	1	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 3	type Blitz	result 1	date 2024-07-27	rnd 3	type Blitz	result 1
		Opponent Chinoruma, T (Tawana)				Opponent Chinoruma, T (Tawana)

#	Games	Start				End
1	5	Tournament JNW Club - Junior A High School 2020				Tournament Grey College Team Championship 2022
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2022-02-19	rnd 3	type Standard	result 1
		Opponent Mulenga, M (Musa)				Opponent Wang, I (Ikai)
2	5	Tournament 2018 Tshwane Inter Region				Tournament 2018 Tshwane Inter Region
		date 2018-12-01	rnd 1	type Standard	result 1	date 2018-12-01	rnd 5	type Standard	result 1
		Opponent De Wet, J (Juan)				Opponent Jansen Van Rensburg, E (Emile)
3	4	Tournament 2018 Swartkop Open				Tournament JHB Metro Junior Closed 2018
		date 2018-06-23	rnd 5	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Monnig, E (Erika)				Opponent Xiao, R (Ryan)

#	Games	Start				End
1	5	Tournament 2018 Tshwane Inter Region				Tournament 2018 Tshwane Inter Region
		date 2018-12-01	rnd 1	type Standard	result 1	date 2018-12-01	rnd 5	type Standard	result 1
		Opponent De Wet, J (Juan)				Opponent Jansen Van Rensburg, E (Emile)
2	4	Tournament 2018 Swartkop Open				Tournament JHB Metro Junior Closed 2018
		date 2018-06-23	rnd 5	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Monnig, E (Erika)				Opponent Xiao, R (Ryan)
3	4	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Janse Van Vuren, EL (Ernst)				Opponent Venter, L (Lian)

#	Games	Start				End
1	2	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 4	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Mulenga, M (Musa)				Opponent Yeh, E (Enxian)

#	Games	Start				End
1	3	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 5	type Blitz	result 1	date 2024-07-27	rnd 7	type Blitz	result 1
		Opponent Gwaza, D (Desire)				Opponent Meyer, J (Jason)
2	1	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 9	type Blitz	result 1	date 2024-07-27	rnd 9	type Blitz	result 1
		Opponent Sithole, L (Lwandle Gidione)				Opponent Sithole, L (Lwandle Gidione)
3	1	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 3	type Blitz	result 1	date 2024-07-27	rnd 3	type Blitz	result 1
		Opponent Chinoruma, T (Tawana)				Opponent Chinoruma, T (Tawana)

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	Van Deventer ,WG (Wilrich Gerdus)	7	2.5	-121.4	6	2.5	-70.8	1	0	-425	0	0	0
1	Van Deventer ,WG (Wilrich Gerdus)	7	1327.7	1206.3	6	1308.7	1256.9	1	1119.8	902.7	0	0	0
2	Allison ,LM (Liam Mark)	3	0.5	-283.3	2	0.5	-212.5	1	0	-425	0	0	0
2	Allison ,LM (Liam Mark)	3	1368.2	1084.8	2	1319.2	1155.7	1	890	943.2	0	0	0
3	Steyn ,T (Tjaart)	3	1	-141.7	2	1	0	0	0	0	1	0	-425
3	Steyn ,T (Tjaart)	3	1511	1369.3	2	1494.4	1511	0	0	0	1	819.2	1086
4	Xiao ,R (Ryan)	2	2	425	2	2	425	0	0	0	0	0	0
4	Xiao ,R (Ryan)	2	1199.8	1624.8	2	1199.1	1624.8	0	0	0	0	0	0
5	Van Der Westhuizen ,J (Javier)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Van Der Westhuizen ,J (Javier)	2	1309.9	884.9	2	1318.2	884.9	0	0	0	0	0	0
6	Nair ,M (Mayaskar)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
6	Nair ,M (Mayaskar)	2	1282.4	1069.9	2	1285.4	1069.9	0	0	0	0	0	0
7	Potgieter ,E (Edward)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Potgieter ,E (Edward)	2	1065.6	640.6	2	1066.1	640.6	0	0	0	0	0	0
8	Wang ,I (Ikai)	2	1	0	2	1	0	0	0	0	0	0	0
8	Wang ,I (Ikai)	2	1147.8	1147.8	2	1140.9	1147.8	0	0	0	0	0	0
9	Molefe ,S (Sandile)	2	2	425	2	2	425	0	0	0	0	0	0
9	Molefe ,S (Sandile)	2	1232.7	1657.7	2	1232.2	1657.7	0	0	0	0	0	0
10	Smith ,R (Reuben)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Smith ,R (Reuben)	2	1230	1442.5	2	1228.4	1442.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Donald, R (Ryan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms