Chess South Africa Ratings Database

PLAYER PAGE

Personal

Siemens, D (Davidko)

Chess SA id

1130137446

FIDE id

Date of birth

2013-02-08 (U14)

Gender

Male

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-06-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1180.9	1165.5	1229.8	1200
Raw rating	1180.9	1165.5	1229.8	1200
Weighted rating	1180.6	1165.3	1229.7	1200
Weighted performance	818.9	0	0	0
Floor	726.4	705.6	759.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.4	174.2	158.9	165.8
Highest rating	1241.8 2023-04-01	1258.9 2023-04-01	1288.3 2023-02-01	1200 2018-10-01
Highest raw rating	1226.4 2023-05-01	1205.6 2023-05-01	1259.4 2023-03-01	1200 2024-02-01
Highest weighted rating	1226.4 2018-10-01	1205.6 2018-10-01	1259.4 2024-10-01	1200 2018-10-01
Highest weighted performance	1241.8 2023-04-01	1258.9 2023-04-01	1288.3 2023-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1180.9	1165.5	1229.8	1200
Analysis
Rating	1180.9	1165.5	1229.8	1200
Raw rating	1180.9	1165.5	1229.8	1200
Weighted rating	1180.6	1165.3	1229.7
Weighted performance	818.9	0	0
K-factor	36	36	36	36
Floor	726.4	705.6	759.4	700
Max/Min rating change allowed	170.4	174.2	158.9	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	1180.9	1165.5	1229.8	1200
New weighted rating	1180.6	1165.3	1229.7	1200
New weighted performance	818.5	0	0	0
Temp new rating	1180.9	1165.5	1229.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1180.9	1165.5	1229.8	1200
New K-factor	36	36	36	36
New floor	726.4	705.6	759.4	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	22	10	12
	18	5	13
	0	0	0
History	40	15	25

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	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	40	19	47.5	-21.2	1209	1187.7
Standard	15	6	40	-85	1204.4	1119.4
Rapid	25	13	52	17	1211.7	1228.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1180.9	1165.5	1229.8	1200
2025-09-01	1180.9	1165.5	1229.8	1200
2025-08-01	1180.9	1165.5	1229.8	1200
2025-07-01	1180.9	1165.5	1229.8	1200
2025-06-01	1180.9	1165.5	1229.8	1200
2025-05-01	1180.9	1165.5	1229.8	1200
2025-04-01	1180.9	1165.5	1229.8	1200
2025-03-01	1180.9	1165.5	1229.8	1200
2025-02-01	1180.9	1165.5	1229.8	1200
2025-01-01	1180.2	1164.9	1229.5	1200
2024-12-01	1180.2	1164.9	1229.5	1200
2024-11-01	1180.2	1164.9	1229.5	1200
2024-10-01	1180.2	1164.9	1229.5	1200
2024-09-01	1180.2	1164.9	1229.5	1200
2024-08-01	1180.2	1164.9	1229.5	1200
2024-07-01	1180.2	1164.9	1229.5	1200
2024-06-01	1180.2	1164.9	1229.5	1200
2024-08-01	1180.2	1164.9	1229.5	1200
2024-04-01	1180.2	1164.9	1229.5	1200
2024-03-01	1180.2	1164.9	1229.5	1200
2024-02-01	1180.2	1164.9	1229.5	1200
2024-01-01	1180.2	1164.9	1229.5	1200
2023-12-01	1180.2	1164.9	1229.5	1200
2023-11-01	1180.2	1164.9	1229.5	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	SBDCU Trial 3 2023 (U12)	2023-06-24	2023-06-24	Standard	Sarah Baartman (ESB)	6	6	2	Yes	Analysis
2	Paul Sauer Chess Tournament 2023 (Senior)	2023-05-05	2023-05-05	Rapid	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
3	SBDCU Trial 2 2023 (U12)	2023-04-01	2023-04-01	Standard	Sarah Baartman (ESB)	5	4	3	Yes	Analysis
4	Stulting Chess Tournament 2023 (Senior)	2023-02-18	2023-02-18	Rapid	Sarah Baartman (ESB)	6	6	3.5	Yes	Analysis
5	Bloeisel Fees 2022 (Primary School B)	2022-10-29	2022-10-29	Rapid	Sarah Baartman (ESB)	7	7	4.5	Yes	Analysis
6	Stulting Sports Day 2022 (Juniors)	2022-08-26	2022-08-26	Rapid	Sarah Baartman (ESB)	6	6	2	Yes	Analysis
7	SBDCU First Fide Rated Open Tournament Fountains Mall 2022 (B)	2022-02-18	2022-02-19	Standard	Sarah Baartman (ESB)	5	5	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Bloeisel Fees 2022				Tournament Bloeisel Fees 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 7	type Rapid	result 0.5
		Opponent Opperman, W (Wilhelm)				Opponent Le Grange, T (Tailyn)
2	3	Tournament SBDCU Trial 2 2023				Tournament Paul Sauer Chess Tournament 2023
		date 2023-04-01	rnd 4	type Standard	result 1	date 2023-05-05	rnd 1	type Rapid	result 1
		Opponent Viviers, D (Divan)				Opponent Mbete, Z (Zonke)
3	3	Tournament Stulting Chess Tournament 2023				Tournament SBDCU Trial 2 2023
		date 2023-02-18	rnd 5	type Rapid	result 1	date 2023-04-01	rnd 1	type Standard	result 1
		Opponent Kennedy, I (Isabella)				Opponent Van Zyl, E (Erick)

#	Games	Start				End
1	2	Tournament SBDCU Trial 2 2023				Tournament SBDCU Trial 2 2023
		date 2023-04-01	rnd 4	type Standard	result 1	date 2023-04-01	rnd 5	type Standard	result 1
		Opponent Viviers, D (Divan)				Opponent Stantcheva, D (Damon)
2	2	Tournament SBDCU First Fide Rated Open Tournament Fountains Mall 2022				Tournament SBDCU Trial 2 2023
		date 2022-02-19	rnd 5	type Standard	result 1	date 2023-04-01	rnd 1	type Standard	result 1
		Opponent Slabbert, S (Sophia)				Opponent Van Zyl, E (Erick)
3	1	Tournament SBDCU Trial 3 2023				Tournament SBDCU Trial 3 2023
		date 2023-06-24	rnd 5	type Standard	result 1	date 2023-06-24	rnd 5	type Standard	result 1
		Opponent Watson, T (Tayla)				Opponent Watson, T (Tayla)

#	Games	Start				End
1	4	Tournament Bloeisel Fees 2022				Tournament Bloeisel Fees 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 7	type Rapid	result 0.5
		Opponent Opperman, W (Wilhelm)				Opponent Le Grange, T (Tailyn)
2	3	Tournament Stulting Chess Tournament 2023				Tournament Paul Sauer Chess Tournament 2023
		date 2023-02-18	rnd 5	type Rapid	result 1	date 2023-05-05	rnd 1	type Rapid	result 1
		Opponent Kennedy, I (Isabella)				Opponent Mbete, Z (Zonke)
3	2	Tournament Paul Sauer Chess Tournament 2023				Tournament Paul Sauer Chess Tournament 2023
		date 2023-05-05	rnd 5	type Rapid	result 1	date 2023-05-05	rnd 6	type Rapid	result 1
		Opponent Stantcheva, D (Damon)				Opponent Inch, M (Morgan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament SBDCU Trial 2 2023				Tournament Paul Sauer Chess Tournament 2023
		date 2023-04-01	rnd 4	type Standard	result 1	date 2023-05-05	rnd 1	type Rapid	result 1
		Opponent Viviers, D (Divan)				Opponent Mbete, Z (Zonke)
2	3	Tournament Bloeisel Fees 2022				Tournament Bloeisel Fees 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 6	type Rapid	result 1
		Opponent Opperman, W (Wilhelm)				Opponent Moss, M (Megan)
3	2	Tournament Paul Sauer Chess Tournament 2023				Tournament Paul Sauer Chess Tournament 2023
		date 2023-05-05	rnd 5	type Rapid	result 1	date 2023-05-05	rnd 6	type Rapid	result 1
		Opponent Stantcheva, D (Damon)				Opponent Inch, M (Morgan)

#	Games	Start				End
1	2	Tournament SBDCU Trial 2 2023				Tournament SBDCU Trial 2 2023
		date 2023-04-01	rnd 4	type Standard	result 1	date 2023-04-01	rnd 5	type Standard	result 1
		Opponent Viviers, D (Divan)				Opponent Stantcheva, D (Damon)
2	2	Tournament SBDCU First Fide Rated Open Tournament Fountains Mall 2022				Tournament SBDCU Trial 2 2023
		date 2022-02-19	rnd 5	type Standard	result 1	date 2023-04-01	rnd 1	type Standard	result 1
		Opponent Slabbert, S (Sophia)				Opponent Van Zyl, E (Erick)
3	1	Tournament SBDCU Trial 3 2023				Tournament SBDCU Trial 3 2023
		date 2023-06-24	rnd 5	type Standard	result 1	date 2023-06-24	rnd 5	type Standard	result 1
		Opponent Watson, T (Tayla)				Opponent Watson, T (Tayla)

#	Games	Start				End
1	3	Tournament Bloeisel Fees 2022				Tournament Bloeisel Fees 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 6	type Rapid	result 1
		Opponent Opperman, W (Wilhelm)				Opponent Moss, M (Megan)
2	2	Tournament Paul Sauer Chess Tournament 2023				Tournament Paul Sauer Chess Tournament 2023
		date 2023-05-05	rnd 5	type Rapid	result 1	date 2023-05-05	rnd 6	type Rapid	result 1
		Opponent Stantcheva, D (Damon)				Opponent Inch, M (Morgan)
3	2	Tournament Stulting Chess Tournament 2023				Tournament Stulting Chess Tournament 2023
		date 2023-02-18	rnd 2	type Rapid	result 1	date 2023-02-18	rnd 3	type Rapid	result 1
		Opponent Shabane, O (Onothando)				Opponent Yongama, A (Amzolele)

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	Stantcheva ,D (Damon)	3	2	141.7	2	1	0	1	1	425	0	0	0
1	Stantcheva ,D (Damon)	3	1208.9	1350.6	2	1225.2	1208.9	1	1169.2	1633.9	0	0	0
2	Slabbert ,S (Sophia)	2	2	425	2	2	425	0	0	0	0	0	0
2	Slabbert ,S (Sophia)	2	1139.8	1564.8	2	1149.2	1564.8	0	0	0	0	0	0
3	Van Zyl ,E (Erick)	2	1	0	1	1	425	1	0	-425	0	0	0
3	Van Zyl ,E (Erick)	2	1313.2	1313.2	1	1315.7	1738.2	1	1275.2	888.2	0	0	0
4	Le Grange ,T (Tailyn)	2	0.5	-212.5	1	0	-425	1	0.5	0	0	0	0
4	Le Grange ,T (Tailyn)	2	1333.9	1121.4	1	1419.8	908.9	1	1239.1	1333.9	0	0	0
5	De Lange ,E (Edeline)	2	0	-425	0	0	0	2	0	-425	0	0	0
5	De Lange ,E (Edeline)	2	1287.5	862.5	0	0	0	2	1233.9	862.5	0	0	0
6	Vlok ,L (Lana)	2	2	425	0	0	0	2	2	425	0	0	0
6	Vlok ,L (Lana)	2	1200	1625	0	0	0	2	1200	1625	0	0	0
7	Bruton ,C (Caleb)	2	0	-425	0	0	0	2	0	-425	0	0	0
7	Bruton ,C (Caleb)	2	1188.4	763.4	0	0	0	2	1124.4	763.4	0	0	0
8	Idziradzemhuka ,W (Walter)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Idziradzemhuka ,W (Walter)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Viviers ,D (Divan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Viviers ,D (Divan)	1	1128.3	1553.3	1	1140.8	1553.3	0	0	0	0	0	0
10	Geldenhuys ,M (Marcel)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Geldenhuys ,M (Marcel)	1	1226.9	801.9	1	1235.2	801.9	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

Siemens, D (Davidko)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms