Chess South Africa Ratings Database

PLAYER PAGE

Personal

Keyser, K (Katelyn)

Chess SA id

2080098060

FIDE id

Date of birth

2008-10-28 (U18)

Gender

Female

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	985.5	1001.5	552.8	514
Raw rating	985.5	1001.5	552.8	514
Weighted rating	980.5	993.8	544.3	514
Weighted performance	813.7	758.1	0	0
Floor	500	501.5	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	225.1	220	416.9	440.6
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01
Highest raw rating	994.5 2024-10-01	1001.5 2024-10-01	552.8 2024-11-01	514 2024-03-01
Highest weighted rating	994.5 2024-11-01	1001.5 2024-11-01	552.8 2024-11-01	514 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	985.5	1001.5	552.8	514
Analysis
Rating	985.5	1001.5	552.8	514
Raw rating	985.5	1001.5	552.8	514
Weighted rating	980.5	993.8	544.3
Weighted performance	813.7	758.1	0
K-factor	40	40	40	40
Floor	500	501.5	500	500
Max/Min rating change allowed	225.1	220	416.9	440.6
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	985.5	1001.5	552.8	514
New weighted rating	981.7	995.5	545.7	514
New weighted performance	807.8	751.9	0	0
Temp new rating	985.5	1001.5	552.8	514
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	985.5	1001.5	552.8	514
New K-factor	40	40	40	40
New floor	500	501.5	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	20	15	5
	0	0	0
	0	0	0
	0	0	0
History	42	37	5

Games since
	Main 20	Standard 15		Rapid 5		Blitz 0
Gender	Female
Age group	U18
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	42	14	33.33	-141.7	1120.8	979.1
Standard	37	13	35.14	-126.4	1110	983.6
Rapid	5	1	20	-255	1200.6	945.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	985.5	1001.5	552.8	514
2025-09-30	985.5	1001.5	552.8	514
2025-09-01	985.5	1001.5	552.8	514
2025-08-01	985.5	1001.5	552.8	514
2025-07-01	985.5	1001.5	552.8	514
2025-06-01	985.5	1001.5	552.8	514
2025-05-01	985.5	1001.5	552.8	514
2025-04-01	985.5	1001.5	552.8	514
2025-03-01	985.5	1001.5	552.8	514
2025-02-01	985.5	1001.5	552.8	514
2025-01-01	985.5	1001.5	552.8	514
2024-12-01	985.5	1001.5	552.8	514
2024-11-01	985.5	1001.5	552.8	514
2024-10-01	994.5	1001.5	514	514
2024-09-01	958.3	957.5	514	514
2024-08-01	969.6	975.5	514	514
2024-07-01	969.6	975.5	514	514
2024-09-01	969.6	975.5	514	514
2024-05-01	969.6	975.5	514	514
2024-04-01	929.1	928.7	514	514
2024-03-01	929.1	928.7	514	514
2024-02-01	929.1	928.7	514	514
2024-01-01	929.1	928.7	514	514
2023-12-01	929.1	928.7	514	514

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 Top Schools 2024 (U19 Girls)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	1	Yes	Analysis
2	Gauteng Schools Individuals Finals 2024 (U18 Girls)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	Sedibeng East D7 Teams Trials 2024 (U19)	2024-08-03	2024-08-03	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
4	HS Drie Riviere Chess Open Section 2024	2024-03-09	2024-03-09	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
5	D7 Primary School League 2019 (U11)	2019-08-03	2019-08-03	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
6	TST-MSA Chess Open 2019 (D)	2019-07-20	2019-07-20	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
7	Eureka Chess Open 2019 (G)	2019-07-27	2019-07-27	Standard	Sedibeng (GSV)	5	4	1	Yes	Analysis
8	D7 Primary School League 2023 (U11 Boys+Mixed)	2018-04-21	2018-04-21	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis
9	Henley Open 2018 (D)	2018-03-10	2018-03-10	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Henley Open 2018				Tournament Henley Open 2018
		date 2018-03-10	rnd 2	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Norval, H (Hendrik)				Opponent Coetzer, Z (Zinique)
2	2	Tournament HS Drie Riviere Chess Open Section 2024				Tournament HS Drie Riviere Chess Open Section 2024
		date 2024-03-09	rnd 2	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Maloka, T (Tlotliso)				Opponent Tsotetsi, N (Nthabiseng)
3	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 3	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Mamedzi, J (Juanita)				Opponent Mamedzi, J (Juanita)

#	Games	Start				End
1	3	Tournament Henley Open 2018				Tournament Henley Open 2018
		date 2018-03-10	rnd 2	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Norval, H (Hendrik)				Opponent Coetzer, Z (Zinique)
2	2	Tournament HS Drie Riviere Chess Open Section 2024				Tournament HS Drie Riviere Chess Open Section 2024
		date 2024-03-09	rnd 2	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Maloka, T (Tlotliso)				Opponent Tsotetsi, N (Nthabiseng)
3	1	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-17	rnd 5	type Standard	result 1	date 2024-08-17	rnd 5	type Standard	result 1
		Opponent Jordaan, L (Larochelle)				Opponent Jordaan, L (Larochelle)

#	Games	Start				End
1	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 3	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Mamedzi, J (Juanita)				Opponent Mamedzi, J (Juanita)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Henley Open 2018				Tournament Henley Open 2018
		date 2018-03-10	rnd 2	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Norval, H (Hendrik)				Opponent Coetzer, Z (Zinique)
2	2	Tournament HS Drie Riviere Chess Open Section 2024				Tournament HS Drie Riviere Chess Open Section 2024
		date 2024-03-09	rnd 2	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Maloka, T (Tlotliso)				Opponent Tsotetsi, N (Nthabiseng)
3	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 3	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Mamedzi, J (Juanita)				Opponent Mamedzi, J (Juanita)

#	Games	Start				End
1	3	Tournament Henley Open 2018				Tournament Henley Open 2018
		date 2018-03-10	rnd 2	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Norval, H (Hendrik)				Opponent Coetzer, Z (Zinique)
2	2	Tournament HS Drie Riviere Chess Open Section 2024				Tournament HS Drie Riviere Chess Open Section 2024
		date 2024-03-09	rnd 2	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Maloka, T (Tlotliso)				Opponent Tsotetsi, N (Nthabiseng)
3	1	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-17	rnd 5	type Standard	result 1	date 2024-08-17	rnd 5	type Standard	result 1
		Opponent Jordaan, L (Larochelle)				Opponent Jordaan, L (Larochelle)

#	Games	Start				End
1	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 3	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Mamedzi, J (Juanita)				Opponent Mamedzi, J (Juanita)

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	Maloka ,T (Tlotliso)	1	1	425	1	1	425	0	0	0	0	0	0
1	Maloka ,T (Tlotliso)	1	1185.7	1610.7	1	1182	1610.7	0	0	0	0	0	0
2	Meyer ,AF (Anko)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Meyer ,AF (Anko)	1	500.6	75.6	1	500	75.6	0	0	0	0	0	0
3	Matjokana ,N (Ntsako Kamohelo)	1	1	425	1	1	425	0	0	0	0	0	0
3	Matjokana ,N (Ntsako Kamohelo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Howat ,LC (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Howat ,LC (Logan)	1	1332.9	907.9	1	1342	907.9	0	0	0	0	0	0
5	Rossouw ,R (Rieghardt)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Rossouw ,R (Rieghardt)	1	1150.9	725.9	1	1140.8	725.9	0	0	0	0	0	0
6	Mthoba ,T (Thandeka)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mthoba ,T (Thandeka)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Smeeton ,JJ (Jayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Smeeton ,JJ (Jayden)	1	1101.1	676.1	1	1080.8	676.1	0	0	0	0	0	0
8	Nyati ,T (Tshepo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Nyati ,T (Tshepo)	1	1103.4	678.4	1	1081.2	678.4	0	0	0	0	0	0
9	Maloka ,B (Bokang)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Maloka ,B (Bokang)	1	1154.6	729.6	1	1146.8	729.6	0	0	0	0	0	0
10	Posthumus ,E (Ethan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Posthumus ,E (Ethan)	1	1125.9	700.9	1	1113.6	700.9	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

Keyser, K (Katelyn)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms