Chess South Africa Ratings Database

PLAYER PAGE

Personal

Groenewald, G (Gershwin)

Chess SA id

1160193120

FIDE id

Date of birth

2016-10-16 (U10)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1336.8

Item	Main	Standard	Rapid	Blitz
Rating	1275.3	1279.2	1163	1200
Raw rating	1275.3	1279.2	1163	1200
Weighted rating	1199.3	1200.3	1158.1	1200
Weighted performance	1245.4	1247.6	0	0
Floor	775.3	779.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.9	148.1	174.8	165.8
Highest rating	1312.7 2024-02-01	1301.4 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1275.3 2025-09-01	1279.2 2025-09-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1269.2 2024-03-01	1272.5 2024-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1312.7 2024-02-01	1301.4 2024-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1275.3	1279.2	1163	1200
Analysis
Rating	1275.3	1279.2	1163	1200
Raw rating	1275.3	1279.2	1163	1200
Weighted rating	1199.3	1200.3	1158.1
Weighted performance	1245.4	1247.6	0
K-factor	36	36	36	36
Floor	775.3	779.2	700	700
Max/Min rating change allowed	148.9	148.1	174.8	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	1275.3	1279.2	1163	1200
New weighted rating	1206.8	1208.2	1157.9	1200
New weighted performance	1244.9	1247.1	0	0
Temp new rating	1275.3	1279.2	1163	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1275.3	1279.2	1163	1200
New K-factor	36	36	36	36
New floor	775.3	779.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	25	25	0
	29	23	6
	0	0	0
	0	0	0
	0	0	0
History	54	48	6

Games since
	Main 54	Standard 48		Rapid 6		Blitz 0
Gender	Male
Age group	U10
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3408		1112		315
Male	2656		807		221
U10	296		101		40
U10 Male	237		72		26
Standard
	RSA		Province		Region
Overall	3265		926		320
Male	2547		657		221
U10	268		80		42
U10 Male	217		56		27
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	16	64	119	1214.5	1333.5
Standard	25	16	64	119	1214.5	1333.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	54	27	50	0	1187.6	1187.6
Standard	48	25.5	53.12	26.6	1188.4	1214.9
Rapid	6	1.5	25	-212.5	1181.6	969.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1275.3	1279.2	1163	1200
2025-09-01	1275.3	1279.2	1163	1200
2025-08-01	1269.2	1272.5	1163	1200
2025-07-01	1269.2	1272.5	1163	1200
2025-06-01	1269.2	1272.5	1163	1200
2025-05-01	1269.2	1272.5	1163	1200
2025-04-01	1231.8	1243.2	1163	1200
2025-03-01	1231.8	1243.2	1163	1200
2025-02-01	1137.6	1134.3	1161.7	1200
2025-01-01	1109.5	1110.3	1130	1200
2024-12-01	1109.5	1110.3	1130	1200
2024-11-01	1109.5	1110.3	1130	1200
2024-10-01	1109.5	1110.3	1130	1200
2024-09-01	1109.5	1110.3	1130	1200
2024-08-01	1083.2	1077.5	1130	1200
2024-07-01	1083.2	1077.5	1130	1200
2024-06-01	1103.6	1077.5	1200	1200
2024-08-01	1103.6	1077.5	1200	1200
2024-04-01	1181	1172.9	1200	1200
2024-03-01	1222.8	1224	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	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	Mossel Bay Top Schools 2025 (U9 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
2	Eden Chess Trials 2 2025 (U10)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	5	Yes	Analysis
3	Mossel Bay Schools Trials 2 2025 (U9 Boys)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
4	Mossel Bay Regional Schools Chess Tournament 2025 (U9 Boys)	2025-02-08	2025-02-08	Standard	Eden (WEG)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Mossel Bay Top Schools 2025 (U9 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
2	Eden Chess Trials 2 2025 (U10)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	5	Yes	Analysis
3	Mossel Bay Schools Trials 2 2025 (U9 Boys)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
4	Mossel Bay Regional Schools Chess Tournament 2025 (U9 Boys)	2025-02-08	2025-02-08	Standard	Eden (WEG)	5	5	4	Yes	Analysis
5	Eden Top Schools 2024 (U9 Open)	2024-08-17	2024-08-17	Standard	Eden (WEG)	5	4	2	Yes	Analysis
6	Western Cape - Brian Raubenheimer Development Tournament 2024 (U9 Boys)	2024-06-08	2024-06-08	Rapid	Overberg (WOS)	6	6	1.5	Yes	Analysis
7	Eden Chess Trials 2 2024 (U10)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	3	Yes	Analysis
8	Eden School Chess Trials 1 2024 (U9 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	4	1	Yes	Analysis
9	Eden School Chess Trials 1 2024 (U7 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	0	0	No	Analysis
10	Mossel Bay Schools Trials 2 2024 (U9)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	12	Tournament Eden Top Schools 2024				Tournament Eden Chess Trials 2 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Sefoor, S (Shanwille)				Opponent Booysen, R (Ruchon)
2	3	Tournament Mossel Bay Schools Trials 2 2024				Tournament Mossel Bay Schools Trials 2 2024
		date 2024-02-17	rnd 1	type Standard	result 1	date 2024-02-17	rnd 3	type Standard	result 1
		Opponent Modupe, L (Lesego)				Opponent Claassen, A (Amy-Lee)
3	2	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 6	type Standard	result 1
		Opponent Titus, A (Angelique)				Opponent Vaaltyn, T (Trivozal)

#	Games	Start				End
1	12	Tournament Eden Top Schools 2024				Tournament Eden Chess Trials 2 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Sefoor, S (Shanwille)				Opponent Booysen, R (Ruchon)
2	3	Tournament Mossel Bay Schools Trials 2 2024				Tournament Mossel Bay Schools Trials 2 2024
		date 2024-02-17	rnd 1	type Standard	result 1	date 2024-02-17	rnd 3	type Standard	result 1
		Opponent Modupe, L (Lesego)				Opponent Claassen, A (Amy-Lee)
3	2	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 6	type Standard	result 1
		Opponent Titus, A (Angelique)				Opponent Vaaltyn, T (Trivozal)

#	Games	Start				End
1	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 6	type Rapid	result 1	date 2024-06-08	rnd 6	type Rapid	result 1
		Opponent Erasmus, L (Leighton)				Opponent Erasmus, L (Leighton)
2	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 4	type Rapid	result 0.5	date 2024-06-08	rnd 4	type Rapid	result 0.5
		Opponent Krynauw, O (Odin)				Opponent Krynauw, O (Odin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Eden Top Schools 2024				Tournament Mossel Bay Regional Schools Chess Tournament 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-08	rnd 2	type Standard	result 1
		Opponent Sefoor, S (Shanwille)				Opponent Burger, E (Eben)
2	2	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 6	type Standard	result 1
		Opponent Titus, A (Angelique)				Opponent Vaaltyn, T (Trivozal)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 4	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Abukwa, M (Maseka)				Opponent Pentz, T (Taylor)

#	Games	Start				End
1	3	Tournament Eden Top Schools 2024				Tournament Mossel Bay Regional Schools Chess Tournament 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-08	rnd 2	type Standard	result 1
		Opponent Sefoor, S (Shanwille)				Opponent Burger, E (Eben)
2	2	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 6	type Standard	result 1
		Opponent Titus, A (Angelique)				Opponent Vaaltyn, T (Trivozal)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 4	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Abukwa, M (Maseka)				Opponent Pentz, T (Taylor)

#	Games	Start				End
1	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 6	type Rapid	result 1	date 2024-06-08	rnd 6	type Rapid	result 1
		Opponent Erasmus, L (Leighton)				Opponent Erasmus, L (Leighton)

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	Modupe ,L (Lesego)	6	3	0	6	3	0	0	0	0	0	0	0
1	Modupe ,L (Lesego)	6	1059.3	1059.3	6	1047.8	1059.3	0	0	0	0	0	0
2	Titus ,A (Angelique)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	Titus ,A (Angelique)	2	1200	1412.5	2	1200	1412.5	0	0	0	0	0	0
3	Seconds ,R (Roshin)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Seconds ,R (Roshin)	2	1100.2	675.2	2	1088	675.2	0	0	0	0	0	0
4	Haremse ,W (Werleo)	2	2	425	2	2	425	0	0	0	0	0	0
4	Haremse ,W (Werleo)	2	1221.8	1646.8	2	1229	1646.8	0	0	0	0	0	0
5	April ,C (Caydee)	2	1	0	2	1	0	0	0	0	0	0	0
5	April ,C (Caydee)	2	1185.2	1185.2	2	1180.7	1185.2	0	0	0	0	0	0
6	Bennett ,D (Danique)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
6	Bennett ,D (Danique)	2	1167.8	955.3	2	1159.6	955.3	0	0	0	0	0	0
7	Vaaltyn ,T (Trivozal)	2	2	425	2	2	425	0	0	0	0	0	0
7	Vaaltyn ,T (Trivozal)	2	1200	1625	2	1200	1625	0	0	0	0	0	0
8	Bruiners ,J (Jeanne)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Bruiners ,J (Jeanne)	1	1310.7	885.7	1	1315.2	885.7	0	0	0	0	0	0
9	Rheeder ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Rheeder ,L (Logan)	1	1262.8	837.8	1	1283.8	837.8	0	0	0	0	0	0
10	Fillies ,E (Eli)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Fillies ,E (Eli)	1	1192	1192	1	1195.7	1192	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Groenewald, G (Gershwin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms