Chess South Africa Ratings Database

PLAYER PAGE

Personal

Schonken, SDT (Stefan)

Chess SA id

104053304

FIDE id

Date of birth

2004-03-15 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1280.4	1278.3	807	853.4
Raw rating	1280.4	1278.3	807	853.4
Weighted rating	1280.4	1278.3	807	853.4
Weighted performance	581.2	575.9	0	0
Floor	780.4	778.3	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	147.9	148.3	290.3	271.7
Highest rating	1280.4 2024-02-01	1278.3 2024-02-01	1200 2018-02-01	1200 2024-02-01
Highest raw rating	1280.4 2024-02-01	1278.3 2024-02-01	878.2 2018-06-01	853.4 2024-02-01
Highest weighted rating	1280.4 2025-04-01	1278.3 2025-04-01	878.2 2024-11-01	853.4 2024-11-01
Highest weighted performance	1247.3 2020-02-01	1232.2 2020-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1280.4	1278.3	807	853.4
Analysis
Rating	1280.4	1278.3	807	853.4
Raw rating	1280.4	1278.3	807	853.4
Weighted rating	1280.4	1278.3	807
Weighted performance	581.2	575.9	0
K-factor	36	36	40	40
Floor	780.4	778.3	500	500
Max/Min rating change allowed	147.9	148.3	290.3	271.7
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	1280.4	1278.3	807	853.4
New weighted rating	1280.4	1278.3	807	853.4
New weighted performance	573.3	568.2	0	0
Temp new rating	1280.4	1278.3	807	853.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1280.4	1278.3	807	853.4
New K-factor	36	36	40	40
New floor	780.4	778.3	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	4	4	0
	0	0	0
	0	0	0
History	410	393	17

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	147	69	46.94	-26	1138.7	1112.7
Standard	130	65	50	0	1125.6	1125.6
Rapid	17	4	23.53	-225	1239.2	1014.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1280.4	1278.3	807	853.4
2025-09-30	1280.4	1278.3	807	853.4
2025-09-01	1280.4	1278.3	807	853.4
2025-08-01	1280.4	1278.3	807	853.4
2025-07-01	1280.4	1278.3	807	853.4
2025-06-01	1280.4	1278.3	807	853.4
2025-05-01	1280.4	1278.3	807	853.4
2025-04-01	1280.4	1278.3	807	853.4
2025-03-01	1280.4	1278.3	807	853.4
2025-02-01	1280.4	1278.3	807	853.4
2025-01-01	1280.4	1278.3	807	853.4
2024-12-01	1280.4	1278.3	807	853.4
2024-11-01	1280.4	1278.3	807	853.4
2024-10-01	1280.4	1278.3	807	853.4
2024-09-01	1280.4	1278.3	807	853.4
2024-08-01	1280.4	1278.3	807	853.4
2024-07-01	1280.4	1278.3	807	853.4
2024-09-01	1280.4	1278.3	807	853.4
2024-05-01	1280.4	1278.3	807	853.4
2024-04-01	1280.4	1278.3	807	853.4
2024-03-01	1280.4	1278.3	807	853.4
2024-02-01	1280.4	1278.3	807	853.4
2024-01-01	1280.4	1278.3	807	853.4
2023-12-01	1280.4	1278.3	807	853.4

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 Open Arnold Classic 2023 (C)	2023-05-20	2023-05-20	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
2	Carel`s Open 2020 (B)	2020-02-29	2020-02-29	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
3	2019 South African Junior Team Championships (U16D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
4	Fonteine Ope 2019 (A)	2019-10-19	2019-10-19	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis
5	GE vs GSV Inter Regional 2019 (U16B)	2019-10-26	2019-10-26	Standard	Ekurhuleni (GE)	5	5	0	Yes	Analysis
6	D7 High School League 2019 (U15)	2019-08-03	2019-08-03	Standard	Sedibeng (GSV)	6	6	6	Yes	Analysis
7	TST-MSA Chess Open 2019 (A)	2019-07-20	2019-07-20	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
8	Vaal Chess Club Open 2019 (A)	2019-06-01	2019-06-01	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis
9	Overvaal Chess Open 2019 (A)	2019-06-15	2019-06-15	Standard	Sedibeng (GSV)	5	5	1.5	Yes	Analysis
10	Drie Riviere Open 2019 (A)	2019-06-08	2019-06-08	Standard	Sedibeng (GSV)	5	5	1.5	Yes	Analysis
11	2019 SWVG Arnold Classic (Rapid Open)	2019-05-18	2019-05-19	Rapid	Tshwane (GTP)	10	8	1	Yes	Analysis
12	D7 Individuals 2019 (U15 Boys)	2019-05-04	2019-05-04	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
13	2019 Heidelberg Open (B)	2019-02-02	2019-02-02	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
14	South African Junior Team Championships 2018 (U16C)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
15	2018 Interregion Sedibeng vs Ekurhuleni (K)	2018-11-03	2018-11-03	Standard	Sedibeng (GSV)	5	5	0	Yes	Analysis
16	2018 Sedibeng Summer Open (C)	2018-10-20	2018-10-20	Standard	Sedibeng (GSV)	5	5	0	Yes	Analysis
17	2018 Gauteng League Final (U15)	2018-08-25	2018-08-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
18	TST-MSA Tournament 2018 (B)	2018-07-21	2018-07-21	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
19	Sasolburg Open 2018 (B)	2018-06-02	2018-06-02	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
20	Hoerskool Drie Riviere Open 2018 (B)	2018-06-09	2018-06-09	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
21	Broadland`s Knights Chess Open 2018 (B)	2018-06-16	2018-06-16	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
22	SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Open)	2018-05-19	2018-05-20	Rapid	Tshwane (GTP)	10	9	3	Yes	Analysis
23	2018 Gauteng Secondary Schools Individual Chess Championships (U15 Boys)	2018-05-26	2018-05-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
24	Word of Life Open 2018 (B)	2018-05-12	2018-05-12	Standard	Sedibeng (GSV)	5	4	1.5	Yes	Analysis
25	2018 D7 Teams (U17)	2018-04-21	2018-04-21	Standard	Sedibeng (GSV)	5	4	4	Yes	Analysis
26	2018 Volkskool Open (B)	2018-02-17	2018-02-17	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
27	2018 - D7 High Schools Individuals (U15 Boys)	2018-02-24	2018-02-24	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
28	South African Junior Team Championships 2017 (U14D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis

#	Games	Start				End
1	12	Tournament 2019 South African Junior Team Championships				Tournament Gauteng Open Arnold Classic 2023
		date 2020-01-06	rnd 5	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 0.5
		Opponent Evans, R (Robyn)				Opponent Shen Yu, F (Frank)
2	8	Tournament TST-MSA Chess Open 2019				Tournament D7 High School League 2019
		date 2019-07-20	rnd 4	type Standard	result 1	date 2019-08-03	rnd 6	type Standard	result 1
		Opponent Makhatse, S (Shaun)				Opponent Jansen Van Rensburg, P (Pamela)
3	7	Tournament Broadland`s Knights Chess Open 2018				Tournament 2018 Gauteng League Final
		date 2018-06-16	rnd 5	type Standard	result 1	date 2018-08-25	rnd 1	type Standard	result 1
		Opponent Villoen, M (Marko)				Opponent Ramsay, KL (Kieran Lloyd)

#	Games	Start				End
1	12	Tournament 2019 South African Junior Team Championships				Tournament Gauteng Open Arnold Classic 2023
		date 2020-01-06	rnd 5	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 0.5
		Opponent Evans, R (Robyn)				Opponent Shen Yu, F (Frank)
2	8	Tournament TST-MSA Chess Open 2019				Tournament D7 High School League 2019
		date 2019-07-20	rnd 4	type Standard	result 1	date 2019-08-03	rnd 6	type Standard	result 1
		Opponent Makhatse, S (Shaun)				Opponent Jansen Van Rensburg, P (Pamela)
3	7	Tournament Broadland`s Knights Chess Open 2018				Tournament 2018 Gauteng League Final
		date 2018-06-16	rnd 5	type Standard	result 1	date 2018-08-25	rnd 1	type Standard	result 1
		Opponent Villoen, M (Marko)				Opponent Ramsay, KL (Kieran Lloyd)

#	Games	Start				End
1	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 5	type Rapid	result 0.5	date 2019-05-18	rnd 6	type Rapid	result 0.5
		Opponent Ramlall, S (Sanjana)				Opponent Grobler, S (Stefan)
2	1	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-20	rnd 8	type Rapid	result 1	date 2018-05-20	rnd 8	type Rapid	result 1
		Opponent Bopape, N (Ntlhane)				Opponent Bopape, N (Ntlhane)
3	1	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 6	type Rapid	result 1	date 2018-05-19	rnd 6	type Rapid	result 1
		Opponent Levy, T (Trevor)				Opponent Levy, T (Trevor)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament TST-MSA Chess Open 2019				Tournament D7 High School League 2019
		date 2019-07-20	rnd 4	type Standard	result 1	date 2019-08-03	rnd 6	type Standard	result 1
		Opponent Makhatse, S (Shaun)				Opponent Jansen Van Rensburg, P (Pamela)
2	6	Tournament 2019 South African Junior Team Championships				Tournament Carel`s Open 2020
		date 2020-01-06	rnd 5	type Standard	result 1	date 2020-02-29	rnd 3	type Standard	result 1
		Opponent Evans, R (Robyn)				Opponent Van Der Mescht, MJ (Marnus)
3	6	Tournament 2018 Volkskool Open				Tournament 2018 - D7 High Schools Individuals
		date 2018-02-17	rnd 4	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Malete, M (Mogale)				Opponent Fourie, N (Nathan)

#	Games	Start				End
1	8	Tournament TST-MSA Chess Open 2019				Tournament D7 High School League 2019
		date 2019-07-20	rnd 4	type Standard	result 1	date 2019-08-03	rnd 6	type Standard	result 1
		Opponent Makhatse, S (Shaun)				Opponent Jansen Van Rensburg, P (Pamela)
2	6	Tournament 2019 South African Junior Team Championships				Tournament Carel`s Open 2020
		date 2020-01-06	rnd 5	type Standard	result 1	date 2020-02-29	rnd 3	type Standard	result 1
		Opponent Evans, R (Robyn)				Opponent Van Der Mescht, MJ (Marnus)
3	6	Tournament 2018 Volkskool Open				Tournament 2018 - D7 High Schools Individuals
		date 2018-02-17	rnd 4	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Malete, M (Mogale)				Opponent Fourie, N (Nathan)

#	Games	Start				End
1	1	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-20	rnd 8	type Rapid	result 1	date 2018-05-20	rnd 8	type Rapid	result 1
		Opponent Bopape, N (Ntlhane)				Opponent Bopape, N (Ntlhane)
2	1	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 6	type Rapid	result 1	date 2018-05-19	rnd 6	type Rapid	result 1
		Opponent Levy, T (Trevor)				Opponent Levy, T (Trevor)
3	1	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 4	type Rapid	result 1	date 2018-05-19	rnd 4	type Rapid	result 1
		Opponent De Villiers, D (Danielle)				Opponent De Villiers, D (Danielle)

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	Grobler ,S (Stefan)	6	1.5	-212.5	4	1	-212.5	2	0.5	-212.5	0	0	0
1	Grobler ,S (Stefan)	6	1194.4	981.9	4	1198.4	981.9	2	1255.6	981.9	0	0	0
2	Hlongwane ,S (Shuttleworth)	4	0	-425	4	0	-425	0	0	0	0	0	0
2	Hlongwane ,S (Shuttleworth)	4	1298.7	873.7	4	1299.2	873.7	0	0	0	0	0	0
3	Rencken ,SJ (Samuel)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Rencken ,SJ (Samuel)	3	804.3	662.7	3	809	662.7	0	0	0	0	0	0
4	Spamers ,V (Vianey)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Spamers ,V (Vianey)	3	1115.1	690.1	3	1109.5	690.1	0	0	0	0	0	0
5	Pule ,L (Lesedi)	3	0	-425	3	0	-425	0	0	0	0	0	0
5	Pule ,L (Lesedi)	3	1148.1	723.1	3	1149.8	723.1	0	0	0	0	0	0
6	Tabane ,G (Gomolemo)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Tabane ,G (Gomolemo)	3	1127.3	1269	3	1122.6	1269	0	0	0	0	0	0
7	Nolan ,RR (Ricco Richard)	3	0	-425	3	0	-425	0	0	0	0	0	0
7	Nolan ,RR (Ricco Richard)	3	1303.7	878.7	3	1303.3	878.7	0	0	0	0	0	0
8	Malete ,M (Mogale)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
8	Malete ,M (Mogale)	3	706.9	848.6	3	718.3	848.6	0	0	0	0	0	0
9	Nel ,G (Grant)	2	1	0	2	1	0	0	0	0	0	0	0
9	Nel ,G (Grant)	2	1027.4	1027.4	2	1019.4	1027.4	0	0	0	0	0	0
10	Opperman ,D (Delmain)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Opperman ,D (Delmain)	2	986.5	1199	2	990.8	1199	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

Schonken, SDT (Stefan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms