Chess South Africa Ratings Database

PLAYER PAGE

Personal

Posthumus, Z (Zane)

Chess SA id

2120119627

FIDE id

Date of birth

2012-01-09 (U14)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-10-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	975.6	948.4	1158.4	1200
Raw rating	975.6	948.4	1158.4	1200
Weighted rating	975.6	948.4	1158.4	1200
Weighted performance	463.7	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	228.3	237.3	175.9	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	975.6	948.4	1158.4	1200
Analysis
Rating	975.6	948.4	1158.4	1200
Raw rating	975.6	948.4	1158.4	1200
Weighted rating	975.6	948.4	1158.4
Weighted performance	463.7	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	228.3	237.3	175.9	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	975.6	948.4	1158.4	1200
New weighted rating	975.6	948.4	1158.4	1200
New weighted performance	458.8	0	0	0
Temp new rating	975.6	948.4	1158.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	975.6	948.4	1158.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	17	10	7
	5	5	0
History	26	19	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
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	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	26	5	19.23	-261.5	1159.1	897.6
Standard	19	2.5	13.16	-313.2	1146	832.8
Rapid	7	2.5	35.71	-121.4	1194.8	1073.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	975.6	948.4	1158.4	1200
2025-09-30	975.6	948.4	1158.4	1200
2025-09-01	975.6	948.4	1158.4	1200
2025-08-01	975.6	948.4	1158.4	1200
2025-07-01	975.6	948.4	1158.4	1200
2025-06-01	975.6	948.4	1158.4	1200
2025-05-01	975.6	948.4	1158.4	1200
2025-04-01	975.6	948.4	1158.4	1200
2025-03-01	975.6	948.4	1158.4	1200
2025-02-01	975.6	948.4	1158.4	1200
2025-01-01	975.6	948.4	1158.4	1200
2024-12-01	975.6	948.4	1158.4	1200
2024-11-01	975.6	948.4	1158.4	1200
2024-10-01	975.6	948.4	1158.4	1200
2024-09-01	975.6	948.4	1158.4	1200
2024-08-01	975.6	948.4	1158.4	1200
2024-07-01	975.6	948.4	1158.4	1200
2024-09-01	975.6	948.4	1158.4	1200
2024-05-01	975.6	948.4	1158.4	1200
2024-04-01	975.6	948.4	1158.4	1200
2024-03-01	975.6	948.4	1158.4	1200
2024-02-01	975.6	948.4	1158.4	1200
2024-01-01	975.6	948.4	1158.4	1200
2023-12-01	975.6	948.4	1158.4	1200

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	Lardies Tournament 2022 (U12)	2022-10-29	2022-10-29	Standard	Tshwane (GTP)	5	5	0.5	Yes	Analysis
2	2022 Gauteng Schools Team Championships (U13 Girls)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	5	0	Yes	Analysis
3	D4 Individuals 2022 (U11 Girls)	2022-04-23	2022-04-23	Rapid	Tshwane (GTP)	7	7	2.5	Yes	Analysis
4	2021 Lardies Ope (E)	2021-10-30	2021-10-30	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
5	2019 Lardies Open (F)	2019-10-26	2019-10-26	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 4	type Rapid	result 1	date 2022-04-23	rnd 5	type Rapid	result 1
		Opponent Schutte, J (Jeanri)				Opponent Grundling, K (Kailey)
2	2	Tournament 2021 Lardies Ope				Tournament D4 Individuals 2022
		date 2021-10-30	rnd 5	type Standard	result 1	date 2022-04-23	rnd 1	type Rapid	result 0.5
		Opponent Rocher, D (Dawid)				Opponent Struwig, K (Karien)
3	1	Tournament Lardies Tournament 2022				Tournament Lardies Tournament 2022
		date 2022-10-29	rnd 5	type Standard	result 0.5	date 2022-10-29	rnd 5	type Standard	result 0.5
		Opponent Rinck, R (Reese)				Opponent Rinck, R (Reese)

#	Games	Start				End
1	1	Tournament Lardies Tournament 2022				Tournament Lardies Tournament 2022
		date 2022-10-29	rnd 5	type Standard	result 0.5	date 2022-10-29	rnd 5	type Standard	result 0.5
		Opponent Rinck, R (Reese)				Opponent Rinck, R (Reese)
2	1	Tournament 2021 Lardies Ope				Tournament 2021 Lardies Ope
		date 2021-10-30	rnd 5	type Standard	result 1	date 2021-10-30	rnd 5	type Standard	result 1
		Opponent Rocher, D (Dawid)				Opponent Rocher, D (Dawid)
3	1	Tournament 2019 Lardies Open				Tournament 2019 Lardies Open
		date 2019-10-26	rnd 5	type Standard	result 1	date 2019-10-26	rnd 5	type Standard	result 1
		Opponent Van Wyk, S (Surike)				Opponent Van Wyk, S (Surike)

#	Games	Start				End
1	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 4	type Rapid	result 1	date 2022-04-23	rnd 5	type Rapid	result 1
		Opponent Schutte, J (Jeanri)				Opponent Grundling, K (Kailey)
2	1	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 1	type Rapid	result 0.5	date 2022-04-23	rnd 1	type Rapid	result 0.5
		Opponent Struwig, K (Karien)				Opponent Struwig, K (Karien)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 4	type Rapid	result 1	date 2022-04-23	rnd 5	type Rapid	result 1
		Opponent Schutte, J (Jeanri)				Opponent Grundling, K (Kailey)
2	1	Tournament 2021 Lardies Ope				Tournament 2021 Lardies Ope
		date 2021-10-30	rnd 5	type Standard	result 1	date 2021-10-30	rnd 5	type Standard	result 1
		Opponent Rocher, D (Dawid)				Opponent Rocher, D (Dawid)
3	1	Tournament 2019 Lardies Open				Tournament 2019 Lardies Open
		date 2019-10-26	rnd 5	type Standard	result 1	date 2019-10-26	rnd 5	type Standard	result 1
		Opponent Van Wyk, S (Surike)				Opponent Van Wyk, S (Surike)

#	Games	Start				End
1	1	Tournament 2021 Lardies Ope				Tournament 2021 Lardies Ope
		date 2021-10-30	rnd 5	type Standard	result 1	date 2021-10-30	rnd 5	type Standard	result 1
		Opponent Rocher, D (Dawid)				Opponent Rocher, D (Dawid)
2	1	Tournament 2019 Lardies Open				Tournament 2019 Lardies Open
		date 2019-10-26	rnd 5	type Standard	result 1	date 2019-10-26	rnd 5	type Standard	result 1
		Opponent Van Wyk, S (Surike)				Opponent Van Wyk, S (Surike)

#	Games	Start				End
1	2	Tournament D4 Individuals 2022				Tournament D4 Individuals 2022
		date 2022-04-23	rnd 4	type Rapid	result 1	date 2022-04-23	rnd 5	type Rapid	result 1
		Opponent Schutte, J (Jeanri)				Opponent Grundling, K (Kailey)

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	Matshete ,M (Mahlatsi Ca)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Matshete ,M (Mahlatsi Ca)	1	1167.9	742.9	1	1181.6	742.9	0	0	0	0	0	0
2	Grove ,A (Amandus)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Grove ,A (Amandus)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Coetzee ,M (Marko)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Coetzee ,M (Marko)	1	1258	833	1	1225.5	833	0	0	0	0	0	0
4	Khutsoane ,R (Rethabile)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Khutsoane ,R (Rethabile)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Maree ,M (Morgan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Maree ,M (Morgan)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Janse Van Rensburg ,LA (Leander Andries)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Janse Van Rensburg ,LA (Leander Andries)	1	1173	748	1	1167.1	748	0	0	0	0	0	0
7	Ferreira ,A (Anina)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ferreira ,A (Anina)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Oberholster ,R (Ruben)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Oberholster ,R (Ruben)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Van Wyk ,S (Surike)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Wyk ,S (Surike)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Soga ,L (Limyoli)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Soga ,L (Limyoli)	1	1026.9	601.9	1	1009.6	601.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Posthumus, Z (Zane)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms