Chess South Africa Ratings Database

PLAYER PAGE

Personal

Whittaker, G (Gregory)

Chess SA id

1740149136

FIDE id

Date of birth

1974-07-25 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-09-21

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1452.8	1501.7	1215.2	1228.9
Raw rating	1452.8	1501.7	1215.2	1228.9
Weighted rating	1387.8	1401.3	1199.7	1223.5
Weighted performance	1360.7	1479.9	1085.1	1142.3
Floor	958.9	1001.7	715.2	751.3
K-factor	32	32	36	36
Min/Max rating change allowed	115.7	107.9	162.3	159.1
Highest rating	1458.9 2025-09-01	1501.7 2025-09-01	1215.2 2025-09-30	1373.9 2023-06-01
Highest raw rating	1458.9 2025-09-01	1501.7 2025-09-01	1215.2 2025-09-30	1251.3 2025-02-01
Highest weighted rating	1387.8 2025-09-30	1389 2025-09-01	1209.2 2018-10-01	1251.3 2025-04-01
Highest weighted performance	1447.9 2025-04-01	1495.4 2025-09-01	1200 2019-12-01	1373.9 2023-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1452.8	1501.7	1215.2	1228.9
Analysis
Rating	1452.8	1501.7	1215.2	1228.9
Raw rating	1452.8	1501.7	1215.2	1228.9
Weighted rating	1387.8	1401.3	1199.7
Weighted performance	1360.7	1479.9	1085.1
K-factor	32	32	36	36
Floor	958.9	1001.7	715.2	751.3
Max/Min rating change allowed	115.7	107.9	162.3	159.1
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	1452.8	1501.7	1215.2	1228.9
New weighted rating	1395.8	1412.8	1201.7	1224.5
New weighted performance	1360.2	1479.4	1084.6	1141.9
Temp new rating	1452.8	1501.7	1215.2	1228.9
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1452.8	1501.7	1215.2	1228.9
New K-factor	32	32	36	36
New floor	958.9	1001.7	715.2	751.3

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	62	24	10	28
	37	19	7	11
	46	7	12	27
	0	0	0	0
	0	0	0	0
History	145	50	29	66

Games since
	Main 110	Standard 43		Rapid 17		Blitz 50
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	1621		559		188
Male	1368		459		158
Adult	455		159		72
Adult Male	422		149		67
Standard
	RSA		Province		Region
Overall	1163		429		146
Male	993		362		123
Adult	360		139		57
Adult Male	337		130		53
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	401		128		71
Male	372		114		63
Adult	237		81		47
Adult Male	228		77		44


	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	62	27	43.55	-54.8	1472.7	1417.9
Standard	24	13	54.17	35.4	1483.2	1518.6
Rapid	10	3	30	-170	1416.8	1246.8
Blitz	28	11	39.29	-91.1	1483.8	1392.7
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	145	67	46.21	-32.2	1429.4	1397.2
Standard	50	25.5	51	8.5	1433.6	1442.1
Rapid	29	11.5	39.66	-87.9	1392.8	1304.9
Blitz	66	30	45.45	-38.6	1442.4	1403.7

Date	Main	Standard	Rapid	Blitz
2025-09-30	1452.8	1501.7	1215.2	1228.9
2025-09-01	1458.9	1501.7	1196.5	1228.9
2025-08-01	1406.1	1454.7	1196.5	1228.9
2025-07-01	1407.5	1454.7	1194.4	1220.2
2025-06-01	1441.3	1454.7	1209.2	1219.9
2025-05-01	1441.3	1454.7	1209.2	1218.9
2025-04-01	1447.9	1454.7	1209.2	1251.3
2025-03-01	1380.7	1382.3	1209.2	1251.3
2025-02-01	1365.6	1356.4	1209.2	1251.3
2025-01-01	1361.3	1356.4	1209.2	1217.4
2024-12-01	1361.3	1356.4	1209.2	1217.4
2024-11-01	1361.3	1356.4	1209.2	1217.4
2024-10-01	1361.3	1356.4	1209.2	1217.4
2024-09-01	1353.8	1325.6	1209.2	1217.4
2024-08-01	1353.8	1325.6	1209.2	1217.4
2024-07-01	1283.3	1288.5	1162	1198.7
2024-06-01	1283.3	1288.5	1162	1198.7
2024-08-01	1296.7	1303.6	1162	1198.7
2024-04-01	1296.7	1303.6	1162	1198.7
2024-03-01	1296.7	1303.6	1162	1198.7
2024-02-01	1296.7	1303.6	1162	1198.7
2024-01-01	1259.6	1257.5	1162	1198.7
2023-12-01	1259.6	1236	1162	1198.7
2023-11-01	1259.6	1236	1162	1198.7

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	Chess Power House Spring Rapid 2025 (A)	2025-09-21	2025-09-21	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
2	JMC Closed 2025 (B)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
3	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
4	Chess Power House Youth Day Rapid 2025 (A)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
5	Moja Chess Extravaganza 2025 (Blitz)	2025-04-26	2025-04-26	Blitz	Johannesburg Metro (GJM)	7	1	0	Yes	Analysis
6	2025 CT Chess Club Blitz Championship	2025-03-19	2025-03-19	Blitz	Cape Town (WCT)	9	9	3	Yes	Analysis
7	Chess Power House March Open 2025 (B)	2025-03-22	2025-03-22	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
8	JMC Crawford Ruimsig 2025 (B)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	MCA Welcome 2025 (Advanced)	2025-02-15	2025-02-15	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
10	CPH Primrose Open 2025 (B)	2025-02-08	2025-02-08	Standard	Ekurhuleni (GE)	5	4	1.5	Yes	Analysis
11	Randburg New Year Blitz 2025	2025-01-21	2025-01-21	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Power House Spring Rapid 2025 (A)	2025-09-21	2025-09-21	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
2	JMC Closed 2025 (B)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
3	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
4	Chess Power House Youth Day Rapid 2025 (A)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
5	Moja Chess Extravaganza 2025 (Blitz)	2025-04-26	2025-04-26	Blitz	Johannesburg Metro (GJM)	7	1	0	Yes	Analysis
6	2025 CT Chess Club Blitz Championship	2025-03-19	2025-03-19	Blitz	Cape Town (WCT)	9	9	3	Yes	Analysis
7	Chess Power House March Open 2025 (B)	2025-03-22	2025-03-22	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
8	JMC Crawford Ruimsig 2025 (B)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	MCA Welcome 2025 (Advanced)	2025-02-15	2025-02-15	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
10	CPH Primrose Open 2025 (B)	2025-02-08	2025-02-08	Standard	Ekurhuleni (GE)	5	4	1.5	Yes	Analysis
11	Randburg New Year Blitz 2025	2025-01-21	2025-01-21	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
12	2024 Tuks Open Chess Tournament (B)	2024-09-28	2024-09-28	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	Chess Power House July Open 2024 (B)	2024-07-20	2024-07-20	Standard	Johannesburg Metro (GJM)	5	4	2.5	Yes	Analysis
14	JMC NG Weltevreden Church 2024	2024-06-29	2024-06-29	Rapid	Johannesburg Metro (GJM)	7	7	3.5	Yes	Analysis
15	South African Open Chess Championship 2024 (Blitz)	2024-07-04	2024-07-04	Blitz	Ethekwini (KED)	11	11	5.5	Yes	Analysis
16	JMC Crawford International Sandton 2024 (B)	2024-05-11	2024-05-11	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
17	JMC Helpmekaar Kollege Tournament 2024 (B)	2024-05-04	2024-05-04	Standard	Johannesburg Metro (GJM)	5	0	0	No	Analysis
18	JMC Kick Off Tournament 2024 (B)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
19	Tshwane Chess Arbiter Norm Blitz Tournament 2023	2023-10-29	2023-10-29	Blitz	Tshwane (GTP)	11	11	6	Yes	Analysis
20	2023 Centurion Chess Open (B)	2023-09-23	2023-09-23	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
21	Mzansi Spring Rapid 2023	2023-09-02	2023-09-02	Rapid	Johannesburg Metro (GJM)	7	7	3	Yes	Analysis
22	2023 Tshwane Chess FIDE Rated Blitz League 4	2023-08-13	2023-08-13	Blitz	Tshwane (GTP)	9	9	3.5	Yes	Analysis
23	2023 Menlo Open Tournament (B)	2023-07-22	2023-07-22	Standard	Tshwane (GTP)	5	2	0	Yes	Analysis
24	Eureka Open 2023 (B)	2023-07-29	2023-07-29	Standard	Sedibeng (GSV)	5	0	0	No	Analysis
25	JMC Blitz - Higher Ground 2023	2023-06-17	2023-06-17	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
26	Mzansi Rapid 2023 (Intermediate)	2023-02-04	2023-02-04	Rapid	Johannesburg Metro (GJM)	6	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2023 Centurion Chess Open				Tournament Tshwane Chess Arbiter Norm Blitz Tournament 2023
		date 2023-09-23	rnd 4	type Standard	result 1	date 2023-10-29	rnd 3	type Blitz	result 1
		Opponent Rampela, M (Makoanyane Enock)				Opponent Makatwane, L (Lethabo)
2	4	Tournament Chess Power House July Open 2024				Tournament 2024 Tuks Open Chess Tournament
		date 2024-07-20	rnd 4	type Standard	result 1	date 2024-09-28	rnd 2	type Standard	result 0.5
		Opponent Gemmell, Z (Zac)				Opponent Goel, R (Rajita)
3	3	Tournament South African Open 2025				Tournament JMC Closed 2025
		date 2025-07-02	rnd 9	type Blitz	result 1	date 2025-08-09	rnd 2	type Standard	result 0.5
		Opponent Ved, R (Rao)				Opponent Lindeque, G (Gabri'Ella)

#	Games	Start				End
1	4	Tournament Chess Power House July Open 2024				Tournament 2024 Tuks Open Chess Tournament
		date 2024-07-20	rnd 4	type Standard	result 1	date 2024-09-28	rnd 2	type Standard	result 0.5
		Opponent Gemmell, Z (Zac)				Opponent Goel, R (Rajita)
2	3	Tournament Chess Power House March Open 2025				Tournament JMC Closed 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 0.5
		Opponent Mini, S (Siboniso)				Opponent Lindeque, G (Gabri'Ella)
3	2	Tournament JMC Closed 2025				Tournament JMC Closed 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-10	rnd 5	type Standard	result 1
		Opponent Chen, Y (Youlin)				Opponent Steyn, T (Tjaart)

#	Games	Start				End
1	2	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 1	type Rapid	result 0.5	date 2024-06-29	rnd 2	type Rapid	result 1
		Opponent Moyo, M (Mukudzei)				Opponent Letsoalo, PM (Peter)
2	1	Tournament Chess Power House Youth Day Rapid 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-06-16	rnd 5	type Rapid	result 1	date 2025-06-16	rnd 5	type Rapid	result 1
		Opponent Skosana, D (Derrick)				Opponent Skosana, D (Derrick)
3	1	Tournament Chess Power House Youth Day Rapid 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-06-16	rnd 3	type Rapid	result 0.5	date 2025-06-16	rnd 3	type Rapid	result 0.5
		Opponent Ndlovu, M (Meshack)				Opponent Ndlovu, M (Meshack)

#	Games	Start				End
1	4	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 4				Tournament Tshwane Chess Arbiter Norm Blitz Tournament 2023
		date 2023-08-13	rnd 9	type Blitz	result 0.5	date 2023-10-29	rnd 3	type Blitz	result 1
		Opponent Van Der Westhuizen, L (Lihan)				Opponent Makatwane, L (Lethabo)
2	3	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 3	type Blitz	result 1	date 2025-01-21	rnd 5	type Blitz	result 1
		Opponent Mngomezulu, M (Mtuthuko)				Opponent Kruger, I (Ivan)
3	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 3	type Blitz	result 1	date 2025-07-02	rnd 4	type Blitz	result 1
		Opponent Gabel Smit, H (Heinrich)				Opponent Gemmell, R (Ryan)

#	Games	Start				End
1	3	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 3	type Blitz	result 1	date 2025-01-21	rnd 5	type Blitz	result 1
		Opponent Mngomezulu, M (Mtuthuko)				Opponent Kruger, I (Ivan)
2	3	Tournament Chess Power House July Open 2024				Tournament 2024 Tuks Open Chess Tournament
		date 2024-07-20	rnd 4	type Standard	result 1	date 2024-09-28	rnd 1	type Standard	result 1
		Opponent Gemmell, Z (Zac)				Opponent Strauss, L (Lun�)
3	2	Tournament JMC Closed 2025				Tournament JMC Closed 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-10	rnd 5	type Standard	result 1
		Opponent Chen, Y (Youlin)				Opponent Steyn, T (Tjaart)

#	Games	Start				End
1	3	Tournament Chess Power House July Open 2024				Tournament 2024 Tuks Open Chess Tournament
		date 2024-07-20	rnd 4	type Standard	result 1	date 2024-09-28	rnd 1	type Standard	result 1
		Opponent Gemmell, Z (Zac)				Opponent Strauss, L (Lun�)
2	2	Tournament JMC Closed 2025				Tournament JMC Closed 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-10	rnd 5	type Standard	result 1
		Opponent Chen, Y (Youlin)				Opponent Steyn, T (Tjaart)
3	2	Tournament Chess Power House March Open 2025				Tournament JMC Closed 2025
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-08-09	rnd 1	type Standard	result 1
		Opponent Mini, S (Siboniso)				Opponent Horn, E (Evan)

#	Games	Start				End
1	1	Tournament Chess Power House Youth Day Rapid 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-06-16	rnd 5	type Rapid	result 1	date 2025-06-16	rnd 5	type Rapid	result 1
		Opponent Skosana, D (Derrick)				Opponent Skosana, D (Derrick)
2	1	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 7	type Rapid	result 1	date 2024-06-29	rnd 7	type Rapid	result 1
		Opponent Deysel, Z (Zachariah)				Opponent Deysel, Z (Zachariah)
3	1	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 5	type Rapid	result 1	date 2024-06-29	rnd 5	type Rapid	result 1
		Opponent Mankena, S (Satvik Ram)				Opponent Mankena, S (Satvik Ram)

#	Games	Start				End
1	3	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 3	type Blitz	result 1	date 2025-01-21	rnd 5	type Blitz	result 1
		Opponent Mngomezulu, M (Mtuthuko)				Opponent Kruger, I (Ivan)
2	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 3	type Blitz	result 1	date 2025-07-02	rnd 4	type Blitz	result 1
		Opponent Gabel Smit, H (Heinrich)				Opponent Gemmell, R (Ryan)
3	2	Tournament South African Open Chess Championship 2024				Tournament South African Open Chess Championship 2024
		date 2024-07-04	rnd 6	type Blitz	result 1	date 2024-07-04	rnd 7	type Blitz	result 1
		Opponent Zikalala, M (Minenhle)				Opponent Subramoney, T (Tivek)

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	Makatwane ,L (Lethabo)	3	1	-141.7	2	0	-425	0	0	0	1	1	425
1	Makatwane ,L (Lethabo)	3	1481.2	1339.6	2	1482.4	1056.2	0	0	0	1	1200	1906.2
2	Naidoo ,K (Kajol)	3	0	-425	2	0	-425	0	0	0	1	0	-425
2	Naidoo ,K (Kajol)	3	1537.4	1112.4	2	1530.8	1112.4	0	0	0	1	1374.8	1112.4
3	Khondowe ,D (Davidson)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Khondowe ,D (Davidson)	2	1608	1183	2	1653.6	1183	0	0	0	0	0	0
4	Niemann ,PWL (Petrus Wessel Le Roux)	2	1	0	2	1	0	0	0	0	0	0	0
4	Niemann ,PWL (Petrus Wessel Le Roux)	2	1459.6	1459.6	2	1450.8	1459.6	0	0	0	0	0	0
5	Steyn ,T (Tjaart)	2	1	0	2	1	0	0	0	0	0	0	0
5	Steyn ,T (Tjaart)	2	1533.1	1533.1	2	1551.3	1533.1	0	0	0	0	0	0
6	Mankena ,S (Satvik Ram)	2	1	0	1	0	-425	1	1	425	0	0	0
6	Mankena ,S (Satvik Ram)	2	1489.8	1489.8	1	1544.3	1064.8	1	1285.4	1914.8	0	0	0
7	Kruger ,I (Ivan)	2	1	0	1	0	-425	0	0	0	1	1	425
7	Kruger ,I (Ivan)	2	1398.1	1398.1	1	1489.7	973.1	0	0	0	1	1307.1	1823.1
8	Sathish ,A (Abinavah)	2	0	-425	0	0	0	1	0	-425	1	0	-425
8	Sathish ,A (Abinavah)	2	1760.4	1335.4	0	0	0	1	1090.2	1335.4	1	1662.6	1335.4
9	Chauke ,N (Nicholus)	2	0	-425	0	0	0	0	0	0	2	0	-425
9	Chauke ,N (Nicholus)	2	1532.7	1107.7	0	0	0	0	0	0	2	1338.1	1107.7
10	Goel ,R (Rajita)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Goel ,R (Rajita)	1	1428.7	1428.7	1	1432.2	1428.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Whittaker, G (Gregory)

Ratings

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Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms