Chess South Africa Ratings Database

PLAYER PAGE

Personal

Gelderbloem, Q (Quelin)

Chess SA id

2110130861

FIDE id

Date of birth

2011-10-12 (U16)

Gender

Female

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

1079.6

Item	Main	Standard	Rapid	Blitz
Rating	1106.7	1093.6	1196	1200
Raw rating	1086.6	1070	1196	1200
Weighted rating	1106.7	1093.6	1195.4	1200
Weighted performance	969.1	969.7	0	0
Floor	717	720	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	194.9	199.6	166.8	165.8
Highest rating	1260.8 2020-02-01	1260.8 2020-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1217 2020-03-01	1220 2020-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1217 2020-03-01	1220 2020-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1260.8 2020-02-01	1260.8 2020-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.1	-2.5	0	0
New rating	1104.6	1091.1	1196	1200
Analysis
Rating	1106.7	1093.6	1196	1200
Raw rating	1086.6	1070	1196	1200
Weighted rating	1106.7	1093.6	1195.4
Weighted performance	969.1	969.7	0
K-factor	36	36	36	36
Floor	717	720	700	700
Max/Min rating change allowed	194.9	199.6	166.8	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	1086.6	1070	1196	1200
New weighted rating	1104.6	1091.1	1195.4	1200
New weighted performance	962.8	963.4	0	0
Temp new rating	1104.6	1091.1	1196	1200
Temp new rating +/-	-2.1	-2.5	0	0
Final new rating +/-	-2.1	-2.5	0	0
New rating	1104.6	1091.1	1196	1200
New K-factor	36	36	36	36
New floor	717	720	700	700

Item	Main	Standard	Rapid
	0	0	0
	18	18	0
	30	24	6
	29	29	0
	10	10	0
	0	0	0
History	102	96	6

Games since
	Main 48	Standard 42		Rapid 6		Blitz 0
Gender	Female
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4477		1511		398
Female	1149		465		136
U16	708		249		70
U16 Female	228		95		25
Standard
	RSA		Province		Region
Overall	4458		1251		445
Female	1156		413		163
U16	715		221		85
U16 Female	220		85		29
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	18	6	33.33	-141.7	1210.6	1068.9
Standard	18	6	33.33	-141.7	1210.6	1068.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	102	39	38.24	-100	1192.8	1092.8
Standard	96	36	37.5	-106.2	1194.1	1087.8
Rapid	6	3	50	0	1172.2	1172.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1086.6	1070	1196	1200
2025-09-30	1086.6	1070	1196	1200
2025-09-01	1086.6	1070	1196	1200
2025-08-01	1114.8	1103	1196	1200
2025-07-01	1114.8	1103	1196	1200
2025-06-01	1114.8	1103	1196	1200
2025-05-01	1114.4	1102.6	1196	1200
2025-04-01	1131.3	1124.3	1196	1200
2025-03-01	1113.4	1101.1	1196	1200
2025-02-01	1112.1	1099.6	1195.8	1200
2025-01-01	1093.6	1079.7	1192.4	1200
2024-12-01	1093.6	1079.7	1192.4	1200
2024-11-01	1093.6	1079.7	1192.4	1200
2024-10-01	1093.6	1079.7	1192.4	1200
2024-09-01	1108.8	1090.9	1192.4	1200
2024-08-01	1108.8	1090.9	1192.4	1200
2024-07-01	1108.8	1090.9	1192.4	1200
2024-09-01	1134	1128.3	1200	1200
2024-05-01	1134	1128.3	1200	1200
2024-04-01	1130.4	1121.8	1200	1200
2024-03-01	1130.4	1121.8	1200	1200
2024-02-01	1137.7	1129.7	1200	1200
2024-01-01	1137.7	1129.7	1200	1200
2023-12-01	1137.7	1129.7	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 (U18 Girls)	2025-08-02	2025-08-02	Standard	Eden (WEG)	6	4	0.5	Yes	Analysis
2	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	3.5	Yes	Analysis
3	Eden Schools Chess Trials 1 2025 (U15 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	4	2	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 (U18 Girls)	2025-08-02	2025-08-02	Standard	Eden (WEG)	6	4	0.5	Yes	Analysis
2	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	3.5	Yes	Analysis
3	Eden Schools Chess Trials 1 2025 (U15 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	4	2	Yes	Analysis
4	Western Cape Top Schools Championship 2024 (U13 Girls)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	5	1.5	Yes	Analysis
5	Eden Open 2024 (C)	2024-06-22	2024-06-22	Standard	Eden (WEG)	5	4	0	Yes	Analysis
6	Western Cape - Brian Raubenheimer Development Tournament 2024 (U13 Girls)	2024-06-08	2024-06-08	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
7	Eden Chess Trials 2 2024 (U14)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	4.5	Yes	Analysis
8	Mossel Bay Schools Trials 2 2024 (U13)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	2	Yes	Analysis
9	Eden Top Schools 2023 (U13 Girls)	2023-08-19	2023-08-19	Standard	Eden (WEG)	5	4	3	Yes	Analysis
10	Eden Trials 2+3 2023 (U14)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	2.5	Yes	Analysis
11	Eden Trails 1 2023 (U13 Girls)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	2	Yes	Analysis
12	Mossel Bay Schools Trials 2 2023 (U13 Girls)	2023-02-18	2023-02-18	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
13	Mossel Bay Schools Trials 1 2023 (U13 Girls)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	3	Yes	Analysis
14	Eden Topskole 2022 (O11 Dogters)	2022-08-13	2022-08-13	Standard	Eden (WEG)	6	6	0	Yes	Analysis
15	Mosselbaai Skole Skaak Proewe 1 2022 (U11 Girls)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
16	Eden Schools Closed Trials 1 2020 (U9 Girls)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	2	Yes	Analysis
17	Mossel Bay Trials 2 2020 (U9)	2020-02-15	2020-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
18	Mossel Bay Trials 1 2020 (U9)	2020-02-01	2020-02-01	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Mossel Bay Trials 1 2020				Tournament Mossel Bay Trials 2 2020
		date 2020-02-01	rnd 2	type Standard	result 0.5	date 2020-02-15	rnd 3	type Standard	result 0.5
		Opponent Moolman, J (Jahmeilio)				Opponent Steenkamp, J (Joy)
2	4	Tournament Eden Top Schools 2023				Tournament Mossel Bay Schools Trials 2 2024
		date 2023-08-19	rnd 2	type Standard	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Steenkamp, J (Joy)				Opponent Plaatjies, J (Joy)
3	4	Tournament Mossel Bay Schools Trials 1 2023				Tournament Mossel Bay Schools Trials 2 2023
		date 2023-01-28	rnd 3	type Standard	result 1	date 2023-02-18	rnd 1	type Standard	result 0.5
		Opponent Oosthuizen, N (Nikita)				Opponent Cordewener, B (Bronti-Mae)

#	Games	Start				End
1	7	Tournament Mossel Bay Trials 1 2020				Tournament Mossel Bay Trials 2 2020
		date 2020-02-01	rnd 2	type Standard	result 0.5	date 2020-02-15	rnd 3	type Standard	result 0.5
		Opponent Moolman, J (Jahmeilio)				Opponent Steenkamp, J (Joy)
2	4	Tournament Eden Top Schools 2023				Tournament Mossel Bay Schools Trials 2 2024
		date 2023-08-19	rnd 2	type Standard	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Steenkamp, J (Joy)				Opponent Plaatjies, J (Joy)
3	4	Tournament Mossel Bay Schools Trials 1 2023				Tournament Mossel Bay Schools Trials 2 2023
		date 2023-01-28	rnd 3	type Standard	result 1	date 2023-02-18	rnd 1	type Standard	result 0.5
		Opponent Oosthuizen, N (Nikita)				Opponent Cordewener, B (Bronti-Mae)

#	Games	Start				End
1	2	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 3	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 1
		Opponent Tieties, F (Faith)				Opponent Klopper, M (Marli)
2	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 1	type Rapid	result 1
		Opponent Jantjies, Z (Zoey)				Opponent Jantjies, Z (Zoey)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Eden Top Schools 2023				Tournament Mossel Bay Schools Trials 2 2024
		date 2023-08-19	rnd 2	type Standard	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Steenkamp, J (Joy)				Opponent Plaatjies, J (Joy)
2	3	Tournament Eden Chess Trials 2 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-04-20	rnd 9	type Standard	result 1	date 2024-06-08	rnd 1	type Rapid	result 1
		Opponent Jakobus, L (Lee-Roy)				Opponent Jantjies, Z (Zoey)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 7	type Standard	result 1	date 2025-04-12	rnd 8	type Standard	result 1
		Opponent Louw, E (Ezra)				Opponent Pypers, M (Mctayrrah)

#	Games	Start				End
1	4	Tournament Eden Top Schools 2023				Tournament Mossel Bay Schools Trials 2 2024
		date 2023-08-19	rnd 2	type Standard	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Steenkamp, J (Joy)				Opponent Plaatjies, J (Joy)
2	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 7	type Standard	result 1	date 2025-04-12	rnd 8	type Standard	result 1
		Opponent Louw, E (Ezra)				Opponent Pypers, M (Mctayrrah)
3	2	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Opperman, C (Crehasia)				Opponent Black, K (Kaylin)

#	Games	Start				End
1	2	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 3	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 1
		Opponent Tieties, F (Faith)				Opponent Klopper, M (Marli)
2	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 1	type Rapid	result 1	date 2024-06-08	rnd 1	type Rapid	result 1
		Opponent Jantjies, Z (Zoey)				Opponent Jantjies, Z (Zoey)

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	Frans ,M (Meecha)	4	0	-425	4	0	-425	0	0	0	0	0	0
1	Frans ,M (Meecha)	4	1143.9	718.9	4	1134.2	718.9	0	0	0	0	0	0
2	Stuurman ,K (Kelsey)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
2	Stuurman ,K (Kelsey)	3	1124.3	840.9	3	1114.1	840.9	0	0	0	0	0	0
3	Steenkamp ,J (Joy)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Steenkamp ,J (Joy)	3	1213	1354.7	3	1211.9	1354.7	0	0	0	0	0	0
4	Claassen ,K (Keaney)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Claassen ,K (Keaney)	3	1203.5	778.5	3	1193.4	778.5	0	0	0	0	0	0
5	Moos ,N (Neith-Lynn)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Moos ,N (Neith-Lynn)	2	1177.1	964.6	2	1172.7	964.6	0	0	0	0	0	0
6	Oosthuizen ,N (Nikita)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Oosthuizen ,N (Nikita)	2	1176.6	1389.1	2	1170.6	1389.1	0	0	0	0	0	0
7	Muza ,M (Mercy)	2	1	0	2	1	0	0	0	0	0	0	0
7	Muza ,M (Mercy)	2	1208.2	1208.2	2	1205.9	1208.2	0	0	0	0	0	0
8	Sinkfontein ,S (Shane-John)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Sinkfontein ,S (Shane-John)	2	1200	987.5	2	1200	987.5	0	0	0	0	0	0
9	Basson ,K (Karliayah)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Basson ,K (Karliayah)	2	1117.2	692.2	2	1097.6	692.2	0	0	0	0	0	0
10	Johnson ,A (Amy)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Johnson ,A (Amy)	2	1182.3	757.3	2	1168.1	757.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Gelderbloem, Q (Quelin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms