Chess South Africa Ratings Database

PLAYER PAGE

Personal

Gemmell, R (Ryan)

Chess SA id

1130306564

FIDE id

Date of birth

2013-02-26 (U14)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-12-07

Personal details last changed

2025-01-18

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1435.4	1443.4	1190.9	1198
Raw rating	1435.4	1443.4	1190.9	1195.4
Weighted rating	1345.9	1346.7	1189.5	1198
Weighted performance	1426.8	1425.7	0	0
Floor	935.4	943.4	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	118.6	117.2	168	166.9
Highest rating	1435.4 2026-01-01	1443.4 2026-01-01	1200 2024-07-01	1200 2024-07-01
Highest raw rating	1435.4 2026-01-01	1443.4 2026-01-01	1200 2024-07-01	1200 2024-07-01
Highest weighted rating	1345.9 2026-01-01	1346.7 2026-01-01	1200 2024-07-01	1200 2024-07-01
Highest weighted performance	1426.8 2026-01-01	1425.7 2026-01-01	1200 2024-12-01	1200 2024-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	-0.3
New rating	1435.4	1443.4	1190.9	1197.8
Analysis
Rating	1435.4	1443.4	1190.9	1198
Raw rating	1435.4	1443.4	1190.9	1195.4
Weighted rating	1345.9	1346.7	1189.5
Weighted performance	1426.8	1425.7	0
K-factor	32	32	36	36
Floor	935.4	943.4	700	700
Max/Min rating change allowed	118.6	117.2	168	166.9
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	1435.4	1443.4	1190.9	1195.4
New weighted rating	1356.2	1357.7	1189.5	1197.8
New weighted performance	1417.2	1416.1	0	0
Temp new rating	1435.4	1443.4	1190.9	1197.8
Temp new rating +/-	0	0	0	-0.3
Final new rating +/-	0	0	0	-0.3
New rating	1435.4	1443.4	1190.9	1197.8
New K-factor	32	32	36	36
New floor	935.4	943.4	700	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	69	62	0	7
	62	55	7	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	131	117	7	7

Games since
	Main 131	Standard 117		Rapid 7		Blitz 7
Gender	Male
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2351		826		266
Male	1906		662		219
U14	389		133		41
U14 Male	284		94		27
Standard
	RSA		Province		Region
Overall	2177		807		253
Male	1768		652		207
U14	359		127		35
U14 Male	262		89		24
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	69	31.5	45.65	-37	1367.2	1330.3
Standard	62	29.5	47.58	-20.6	1365.6	1345
Rapid	0	0	0	0	0	0
Blitz	7	2	28.57	-182.1	1381.9	1199.8
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	131	64	48.85	-9.7	1331	1321.2
Standard	117	59	50.43	3.6	1329	1332.6
Rapid	7	3	42.86	-60.7	1312.6	1251.9
Blitz	7	2	28.57	-182.1	1381.9	1199.8

Date	Main	Standard	Rapid	Blitz
2026-01-01	1435.4	1443.4	1190.9	1195.4
2025-11-30	1386.3	1392.2	1190.9	1195.4
2025-11-01	1386.3	1392.2	1190.9	1195.4
2025-09-30	1386.3	1392.2	1190.9	1195.4
2025-09-01	1371.4	1380.7	1190.9	1195.4
2025-08-01	1353.8	1360.9	1190.9	1195.4
2025-07-01	1379.6	1377.9	1190.9	1200
2025-06-01	1284.4	1280.6	1190.9	1200
2025-05-01	1330.8	1324.3	1190.9	1200
2025-04-01	1330.8	1324.3	1190.9	1200
2025-03-01	1378.5	1371.4	1190.9	1200
2025-02-01	1364.7	1356.6	1190.4	1200
2025-01-01	1395.5	1394.1	1180.4	1200
2024-12-01	1340	1341.5	1180.4	1200
2024-11-01	1340	1341.5	1180.4	1200
2024-10-01	1265.7	1269	1180.4	1200
2024-09-01	1243	1231.2	1180.4	1200
2024-11-01	1184.6	1168	1180.4	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	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	Gauteng Inter-Region at Emerald Resort 2025 (U14 Candidates)	2025-12-06	2025-12-07	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
2	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
3	Chess Power House Aug Open 2025 (C)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	4	2	Yes	Analysis
4	JMC Closed 2025 (U14)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
5	JMC - Trinity Randpark Ridge 2025 (C)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
6	South African Open 2025 (U14 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
7	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	7	2	Yes	Analysis
8	JMC Helpmekaar 2025 (C)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
9	Ekurhuleni Trials 2025 (E)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
10	Moja Chess Extravaganza 2025 (C)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	8	1.5	Yes	Analysis
11	Lubowski Open 2025 (D2)	2025-03-21	2025-03-22	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
12	2025 Chris Greyling Open Chess Tournament (C)	2025-03-15	2025-03-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
13	2025 Piet Robbertse Fide Rated Open Chess Tournament (D)	2025-02-01	2025-02-02	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
14	2025 Tshwane Chess OPEN Registration Tournament (B1)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
15	Gauteng Inter-Region at UJ 2024 (U12 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
16	East Rand Chess Year end Open 2024 (C)	2024-11-30	2024-11-30	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
17	CPH Boksburg Open 2024 (C)	2024-10-26	2024-10-26	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
18	2024 Gauteng North Open Chess Tournament (U12)	2024-10-05	2024-10-06	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
19	Ekurhuleni Closed 2024 (U12)	2024-09-21	2024-09-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
20	Mzansi Spring Open 2024 (Juniors)	2024-09-07	2024-09-07	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
21	JCC Khelo India 1st Annual Chess Tournament 2024 (D)	2024-08-31	2024-08-31	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
22	Ekurhuleni Trails 3 2024 (U12)	2024-08-24	2024-08-24	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
23	Bojanala's FIDE In The Sparkling Waters 2024 (Junior Champs)	2024-08-17	2024-08-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
24	Ekurhuleni Trails 2 2024 (U12)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
25	Chess Power House July Open 2024 (C)	2024-07-20	2024-07-20	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
26	Midvaal Winter Classic 13 July 2024 (E)	2024-07-13	2024-07-13	Rapid	Sedibeng (GSV)	7	7	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament JMC Helpmekaar 2025				Tournament JMC Helpmekaar 2025
		date 2025-06-01	rnd 2	type Standard	result 1	date 2025-06-01	rnd 5	type Standard	result 1
		Opponent Naidoo, K (Kehan)				Opponent Westoby, A (Adam)
2	4	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-07	rnd 1	type Standard	result 1	date 2024-12-08	rnd 4	type Standard	result 1
		Opponent Aikman, D (Desmond Gustav)				Opponent Willemse, H (Hans)
3	4	Tournament CPH Boksburg Open 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-26	rnd 3	type Standard	result 1	date 2024-11-30	rnd 1	type Standard	result 1
		Opponent Jain, R (Ryon)				Opponent Swanevelder, Z (Zianey)

#	Games	Start				End
1	5	Tournament JMC Helpmekaar 2025				Tournament South African Open 2025
		date 2025-06-01	rnd 2	type Standard	result 1	date 2025-07-03	rnd 1	type Standard	result 1
		Opponent Naidoo, K (Kehan)				Opponent Setlhodi, O (Ofentse)
2	4	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-07	rnd 1	type Standard	result 1	date 2024-12-08	rnd 4	type Standard	result 1
		Opponent Aikman, D (Desmond Gustav)				Opponent Willemse, H (Hans)
3	4	Tournament CPH Boksburg Open 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-26	rnd 3	type Standard	result 1	date 2024-11-30	rnd 1	type Standard	result 1
		Opponent Jain, R (Ryon)				Opponent Swanevelder, Z (Zianey)

#	Games	Start				End
1	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 6	type Rapid	result 1	date 2024-07-13	rnd 6	type Rapid	result 1
		Opponent Lombaard, W (Wian)				Opponent Lombaard, W (Wian)
2	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 3	type Rapid	result 1	date 2024-07-13	rnd 3	type Rapid	result 1
		Opponent Dlamini, K (Khanyisile)				Opponent Dlamini, K (Khanyisile)
3	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 1	type Rapid	result 1
		Opponent Le Roux, M (Meiring)				Opponent Le Roux, M (Meiring)

#	Games	Start				End
1	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 8	type Blitz	result 1	date 2025-07-02	rnd 9	type Blitz	result 1
		Opponent Daniels, U (Uriel)				Opponent Bothma, L (Liandri)

#	Games	Start				End
1	4	Tournament JMC Helpmekaar 2025				Tournament JMC Helpmekaar 2025
		date 2025-06-01	rnd 2	type Standard	result 1	date 2025-06-01	rnd 5	type Standard	result 1
		Opponent Naidoo, K (Kehan)				Opponent Westoby, A (Adam)
2	4	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-07	rnd 1	type Standard	result 1	date 2024-12-08	rnd 4	type Standard	result 1
		Opponent Aikman, D (Desmond Gustav)				Opponent Willemse, H (Hans)
3	4	Tournament CPH Boksburg Open 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-26	rnd 3	type Standard	result 1	date 2024-11-30	rnd 1	type Standard	result 1
		Opponent Jain, R (Ryon)				Opponent Swanevelder, Z (Zianey)

#	Games	Start				End
1	5	Tournament JMC Helpmekaar 2025				Tournament South African Open 2025
		date 2025-06-01	rnd 2	type Standard	result 1	date 2025-07-03	rnd 1	type Standard	result 1
		Opponent Naidoo, K (Kehan)				Opponent Setlhodi, O (Ofentse)
2	4	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-07	rnd 1	type Standard	result 1	date 2024-12-08	rnd 4	type Standard	result 1
		Opponent Aikman, D (Desmond Gustav)				Opponent Willemse, H (Hans)
3	4	Tournament CPH Boksburg Open 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-26	rnd 3	type Standard	result 1	date 2024-11-30	rnd 1	type Standard	result 1
		Opponent Jain, R (Ryon)				Opponent Swanevelder, Z (Zianey)

#	Games	Start				End
1	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 6	type Rapid	result 1	date 2024-07-13	rnd 6	type Rapid	result 1
		Opponent Lombaard, W (Wian)				Opponent Lombaard, W (Wian)
2	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 3	type Rapid	result 1	date 2024-07-13	rnd 3	type Rapid	result 1
		Opponent Dlamini, K (Khanyisile)				Opponent Dlamini, K (Khanyisile)
3	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 1	type Rapid	result 1
		Opponent Le Roux, M (Meiring)				Opponent Le Roux, M (Meiring)

#	Games	Start				End
1	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 8	type Blitz	result 1	date 2025-07-02	rnd 9	type Blitz	result 1
		Opponent Daniels, U (Uriel)				Opponent Bothma, L (Liandri)

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	Mann ,L (Leane)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Mann ,L (Leane)	3	1440.7	1299.1	3	1457.2	1299.1	0	0	0	0	0	0
2	De Jager ,Z (Zander)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	De Jager ,Z (Zander)	3	1343	1201.4	3	1339.9	1201.4	0	0	0	0	0	0
3	Mankena ,S (Satvik Ram)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Mankena ,S (Satvik Ram)	2	1436.9	1011.9	2	1419.2	1011.9	0	0	0	0	0	0
4	Papanicolaou ,M (Mila)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Papanicolaou ,M (Mila)	2	1598.4	1173.4	2	1615.1	1173.4	0	0	0	0	0	0
5	Dsouza ,E (Ethan)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Dsouza ,E (Ethan)	2	1498.7	1073.7	2	1496.6	1073.7	0	0	0	0	0	0
6	Swanevelder ,Z (Zianey)	2	2	425	2	2	425	0	0	0	0	0	0
6	Swanevelder ,Z (Zianey)	2	1047.3	1472.3	2	1041.4	1472.3	0	0	0	0	0	0
7	Khumalo ,ME (Musawenkosi Ethan)	2	1	0	2	1	0	0	0	0	0	0	0
7	Khumalo ,ME (Musawenkosi Ethan)	2	1289.7	1289.7	2	1291.7	1289.7	0	0	0	0	0	0
8	Jordaan ,M (Mikijl)	2	1	0	2	1	0	0	0	0	0	0	0
8	Jordaan ,M (Mikijl)	2	1315.1	1315.1	2	1328.1	1315.1	0	0	0	0	0	0
9	Canham ,T (Te-Andre)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Canham ,T (Te-Andre)	2	1425.5	1000.5	2	1397.2	1000.5	0	0	0	0	0	0
10	Bekker ,S (Salomo)	1	1	425	1	1	425	0	0	0	0	0	0
10	Bekker ,S (Salomo)	1	1236.7	1661.7	1	1239	1661.7	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

Gemmell, 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