Chess South Africa Ratings Database

PLAYER PAGE

Personal

Buhr, G (Gretchen)

Chess SA id

2120133357

FIDE id

Date of birth

2012-12-18 (U14)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-09-13

Personal details last changed

1900-01-01

Junior GPX Games

22.5

Junior GPX Points

1127.8

Item	Main	Standard	Rapid	Blitz
Rating	1288.8	1290.6	1251.7	1200
Raw rating	1277.7	1290.6	1228.7	1200
Weighted rating	1288.8	1272.4	1251.7	1200
Weighted performance	1130.7	1165	1121.4	0
Floor	828.2	805.5	819.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.4	145.7	159.2	165.8
Highest rating	1328.2 2025-04-01	1319.9 2024-07-01	1319.4 2025-03-01	1200 2018-10-01
Highest raw rating	1328.2 2025-04-01	1305.5 2024-08-01	1319.4 2025-03-01	1200 2024-03-01
Highest weighted rating	1288.4 2025-09-30	1264.8 2025-08-01	1251.2 2025-09-30	1200 2018-10-01
Highest weighted performance	1321.8 2025-03-01	1319.9 2024-07-01	1287.5 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.2	0	0.3	0
New rating	1289	1290.6	1251.9	1200
Analysis
Rating	1288.8	1290.6	1251.7	1200
Raw rating	1277.7	1290.6	1228.7	1200
Weighted rating	1288.8	1272.4	1251.7
Weighted performance	1130.7	1165	1121.4
K-factor	36	36	36	36
Floor	828.2	805.5	819.4	700
Max/Min rating change allowed	148.4	145.7	159.2	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	1277.7	1290.6	1228.7	1200
New weighted rating	1289	1274.5	1251.9	1200
New weighted performance	1123.7	1157.5	1114.3	0
Temp new rating	1289	1290.6	1251.9	1200
Temp new rating +/-	0.2	0	0.3	0
Final new rating +/-	0.2	0	0.3	0
New rating	1289	1290.6	1251.9	1200
New K-factor	36	36	36	36
New floor	828.2	805.5	819.4	700

Item	Main	Standard	Rapid
	0	0	0
	35	11	24
	36	31	5
	33	22	11
	16	16	0
	9	0	9
History	134	85	49

Games since
	Main 71	Standard 42		Rapid 29		Blitz 0
Gender	Female
Age group	U14
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3366		1107		88
Female	699		275		26
U14	635		209		18
U14 Female	168		67		7
Standard
	RSA		Province		Region
Overall	3266		933		54
Female	676		253		15
U14	612		174		13
U14 Female	169		67		5
Rapid
	RSA		Province		Region
Overall	1358		674		87
Female	259		147		29
U14	301		155		20
U14 Female	82		45		9
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-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	35	19.5	55.71	48.6	1252.3	1300.9
Standard	11	7	63.64	115.9	1265.2	1381.1
Rapid	24	12.5	52.08	17.7	1246.5	1264.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	134	69.5	51.87	15.9	1218.5	1234.4
Standard	85	46	54.12	35	1218.1	1253.1
Rapid	49	23.5	47.96	-17.3	1219.3	1201.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1277.7	1290.6	1228.7	1200
2025-09-30	1277.7	1290.6	1228.7	1200
2025-09-01	1326.3	1290.6	1319.4	1200
2025-08-01	1326.3	1290.6	1319.4	1200
2025-07-01	1326.3	1290.6	1319.4	1200
2025-06-01	1326.3	1290.6	1319.4	1200
2025-05-01	1328.2	1290.5	1319.4	1200
2025-04-01	1328.2	1290.5	1319.4	1200
2025-03-01	1299.3	1245.6	1319.4	1200
2025-02-01	1246	1243.6	1187.6	1200
2025-01-01	1244.5	1233.5	1187.6	1200
2024-12-01	1244.5	1233.5	1187.6	1200
2024-11-01	1244.5	1233.5	1187.6	1200
2024-10-01	1244.5	1233.5	1187.6	1200
2024-09-01	1299.5	1305.5	1187.6	1200
2024-08-01	1299.5	1305.5	1187.6	1200
2024-07-01	1249.3	1248.6	1187.6	1200
2024-09-01	1249.3	1248.6	1187.6	1200
2024-05-01	1262.7	1264.4	1187.6	1200
2024-04-01	1262.7	1264.4	1187.6	1200
2024-03-01	1232.8	1235.2	1164	1200
2024-02-01	1232.8	1235.2	1164	1200
2024-01-01	1232.8	1235.2	1164	1200
2023-12-01	1232.8	1235.2	1164	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	Overberg Club Championship 2025	2025-09-13	2025-09-13	Rapid	Overberg (WOS)	7	6	1	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
3	Overberg Schools - PS Closed 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
4	Overberg Schools - PS Trials (Region 1) 2025 (U13 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
5	Curro Hermanus Summer Open 2025 (U13)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
6	Overberg Schools & Federation Open 2025 (U13)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Club Championship 2025	2025-09-13	2025-09-13	Rapid	Overberg (WOS)	7	6	1	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
3	Overberg Schools - PS Closed 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
4	Overberg Schools - PS Trials (Region 1) 2025 (U13 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
5	Curro Hermanus Summer Open 2025 (U13)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
6	Overberg Schools & Federation Open 2025 (U13)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
7	Overberg GP Invitational Day 2 2024 (B)	2024-09-27	2024-09-27	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
8	Overberg GP Invitational Day 1 2024 (B)	2024-09-26	2024-09-26	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
9	Western Cape Top Schools Championship 2024 (U13 Girls)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
10	Overberg Schools - Top Schools 2024 (U9-U15 Girls)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	4	3.5	Yes	Analysis
11	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
12	Overberg Schools - PS Closed 2024 (U13 Girls)	2024-03-16	2024-03-16	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
13	Overberg Schools - PS Trials Region 3 2024 (U13 Girls)	2024-03-02	2024-03-02	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
14	Western Cape Top Schools 2023 (U11 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
15	Overberg Top Schools 2023 (U11)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
16	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
17	Overberg School Chess Closed Tournament 2023 (U11 Girls)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
18	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
19	Overberg Schools Open Tournament 2023 (U12)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
20	Western Cape Top Schools 2022 (U11 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
21	Western Cape Schools 2022 (U11 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
22	Overberg Primary Schools Closed 2022 (U11 Girls)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
23	Western Cape Schools 2021 (U9 Girls)	2021-10-23	2021-10-23	Rapid	Overberg (WOS)	5	5	1	Yes	Analysis
24	Overberg Schools Trials 2021 (U9)	2021-09-18	2021-09-18	Rapid	Overberg (WOS)	5	4	1	Yes	Analysis
25	Overberg Closed 2020 (U9 Girls)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-05-05	rnd 6	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Taylor, D (Denashkia)				Opponent Tieties, F (Faith)
2	4	Tournament Overberg Schools - PS Closed 2025				Tournament Overberg Schools - PS Closed 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Otto, J (Johanne)				Opponent Bota, A (Alupheli)
3	4	Tournament Overberg Schools - PS Trials Region 3 2024				Tournament Overberg Schools - PS Trials Region 3 2024
		date 2024-03-02	rnd 1	type Rapid	result 0.5	date 2024-03-02	rnd 4	type Rapid	result 1
		Opponent Otto, J (Johanne)				Opponent Fortuin, E (Eron)

#	Games	Start				End
1	6	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-05-05	rnd 6	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Taylor, D (Denashkia)				Opponent Tieties, F (Faith)
2	4	Tournament Overberg Schools - PS Closed 2025				Tournament Overberg Schools - PS Closed 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Otto, J (Johanne)				Opponent Bota, A (Alupheli)
3	4	Tournament Overberg Closed 2020				Tournament Overberg Primary Schools Closed 2022
		date 2020-03-15	rnd 5	type Standard	result 0.5	date 2022-03-12	rnd 3	type Standard	result 1
		Opponent Longland, HM (Heather-Mari)				Opponent Van Der Westhuizen, M (Mika)

#	Games	Start				End
1	4	Tournament Overberg Schools - PS Trials Region 3 2024				Tournament Overberg Schools - PS Trials Region 3 2024
		date 2024-03-02	rnd 1	type Rapid	result 0.5	date 2024-03-02	rnd 4	type Rapid	result 1
		Opponent Otto, J (Johanne)				Opponent Fortuin, E (Eron)
2	3	Tournament Curro Hermanus Summer Open 2025				Tournament Curro Hermanus Summer Open 2025
		date 2025-02-08	rnd 3	type Rapid	result 1	date 2025-02-08	rnd 5	type Rapid	result 1
		Opponent Vanqa, L (Lelomso)				Opponent Otto, J (Johanne)
3	3	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2023-03-10	rnd 4	type Rapid	result 1
		Opponent Van Zyl, H (Hannah)				Opponent Otto, K (Karlien)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Overberg Schools - PS Closed 2025				Tournament Overberg Schools - PS Closed 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Otto, J (Johanne)				Opponent Bota, A (Alupheli)
2	3	Tournament Western Cape PS Individuals Championship 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-05-05	rnd 6	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Taylor, D (Denashkia)				Opponent Van Schoor, J (Jade)
3	3	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 5	type Standard	result 1
		Opponent Mputing, T (Thando)				Opponent Pretorius, D (Dominic Reinhart)

#	Games	Start				End
1	4	Tournament Overberg Schools - PS Closed 2025				Tournament Overberg Schools - PS Closed 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Otto, J (Johanne)				Opponent Bota, A (Alupheli)
2	3	Tournament Western Cape PS Individuals Championship 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-05-05	rnd 6	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Taylor, D (Denashkia)				Opponent Van Schoor, J (Jade)
3	3	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 5	type Standard	result 1
		Opponent Mputing, T (Thando)				Opponent Pretorius, D (Dominic Reinhart)

#	Games	Start				End
1	3	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2023-03-10	rnd 4	type Rapid	result 1
		Opponent Van Zyl, H (Hannah)				Opponent Otto, K (Karlien)
2	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Otto, K (Karlien)				Opponent Ribeiro, A (Alice)
3	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Rubusana, L (Lolothando)				Opponent Fortuin, E (Eron)

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	Otto ,J (Johanne)	6	3	0	4	1.5	-106.2	2	1.5	212.5	0	0	0
1	Otto ,J (Johanne)	6	1122.1	1122.1	4	1102.3	1015.9	2	1089.9	1334.6	0	0	0
2	Collins ,E (Esme)	4	4	425	4	4	425	0	0	0	0	0	0
2	Collins ,E (Esme)	4	1206.8	1631.8	4	1181.9	1631.8	0	0	0	0	0	0
3	Fortuin ,E (Eron)	4	4	425	2	2	425	2	2	425	0	0	0
3	Fortuin ,E (Eron)	4	1152.7	1577.7	2	1149.8	1577.7	2	1194.2	1577.7	0	0	0
4	Rock ,M (Mieke)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Rock ,M (Mieke)	3	1162.2	1303.9	3	1145.4	1303.9	0	0	0	0	0	0
5	Davids ,J (Jordan)	3	1.5	0	2	1.5	212.5	1	0	-425	0	0	0
5	Davids ,J (Jordan)	3	1089.3	1089.3	2	1057.7	1301.8	1	1205.7	664.3	0	0	0
6	Van Der Westhuizen ,M (Mika)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
6	Van Der Westhuizen ,M (Mika)	3	1269.2	1127.5	2	1327.4	1269.2	1	1275.4	844.2	0	0	0
7	Spinnler ,E (Elizabeth Hendrina)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
7	Spinnler ,E (Elizabeth Hendrina)	3	1173.7	1457	2	1207.6	1386.2	1	1176	1598.7	0	0	0
8	Du Preez ,A (Alet)	3	1	-141.7	1	0	-425	2	1	0	0	0	0
8	Du Preez ,A (Alet)	3	1241.8	1100.2	1	1188.9	816.8	2	1340.8	1241.8	0	0	0
9	Henning ,N (Nicolas)	3	0	-425	0	0	0	3	0	-425	0	0	0
9	Henning ,N (Nicolas)	3	1298.2	873.2	0	0	0	3	1304.8	873.2	0	0	0
10	Otto ,K (Karlien)	3	3	425	0	0	0	3	3	425	0	0	0
10	Otto ,K (Karlien)	3	1149.4	1574.4	0	0	0	3	1196.9	1574.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Buhr, G (Gretchen)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms