Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lubbe, DS (David Stefanus)

Chess SA id

105018698

FIDE id

Date of birth

2005-07-27 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-02-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1676.4	1693.4	1464	1411.3
Raw rating	1676.4	1693.4	1464	1411.3
Weighted rating	1675.9	1692.9	1464	1411.3
Weighted performance	788	788.2	0	0
Floor	1176.4	1193.4	964	968.3
K-factor	28	28	32	32
Min/Max rating change allowed	84.1	82.1	113.8	122.7
Highest rating	1676.4 2024-02-01	1693.4 2024-02-01	1464 2024-02-01	1494.5 2018-01-01
Highest raw rating	1676.4 2024-02-01	1693.4 2024-02-01	1464 2024-02-01	1468.3 2018-02-01
Highest weighted rating	1674.9 2025-08-01	1691.7 2025-08-01	1464 2024-02-01	1468.3 2018-12-01
Highest weighted performance	1598.8 2021-05-01	1595.1 2021-05-01	1200 2024-02-01	1494.5 2018-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1676.4	1693.4	1464	1411.3
Analysis
Rating	1676.4	1693.4	1464	1411.3
Raw rating	1676.4	1693.4	1464	1411.3
Weighted rating	1675.9	1692.9	1464
Weighted performance	788	788.2	0
K-factor	28	28	32	32
Floor	1176.4	1193.4	964	968.3
Max/Min rating change allowed	84.1	82.1	113.8	122.7
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	1676.4	1693.4	1464	1411.3
New weighted rating	1676.2	1693.2	1464	1411.3
New weighted performance	786.2	786.5	0	0
Temp new rating	1676.4	1693.4	1464	1411.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1676.4	1693.4	1464	1411.3
New K-factor	28	28	32	32
New floor	1176.4	1193.4	964	968.3

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	5	5	0	0
	10	10	0	0
History	725	700	11	14

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
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	161	91.5	56.83	58.1	1420.1	1478.2
Standard	147	84.5	57.48	63.6	1420	1483.6
Rapid	0	0	0	0	0	0
Blitz	14	7	50	0	1420.8	1420.8

Date	Main	Standard	Rapid	Blitz
2025-09-30	1676.4	1693.4	1464	1411.3
2025-09-01	1676.4	1693.4	1464	1411.3
2025-08-01	1676.4	1693.4	1464	1411.3
2025-07-01	1676.4	1693.4	1464	1411.3
2025-06-01	1676.4	1693.4	1464	1411.3
2025-05-01	1676.4	1693.4	1464	1411.3
2025-04-01	1676.4	1693.4	1464	1411.3
2025-03-01	1676.4	1693.4	1464	1411.3
2025-02-01	1676.4	1693.4	1464	1411.3
2025-01-01	1676.4	1693.4	1464	1411.3
2024-12-01	1676.4	1693.4	1464	1411.3
2024-11-01	1676.4	1693.4	1464	1411.3
2024-10-01	1676.4	1693.4	1464	1411.3
2024-09-01	1676.4	1693.4	1464	1411.3
2024-08-01	1676.4	1693.4	1464	1411.3
2024-07-01	1676.4	1693.4	1464	1411.3
2024-06-01	1676.4	1693.4	1464	1411.3
2024-08-01	1676.4	1693.4	1464	1411.3
2024-04-01	1676.4	1693.4	1464	1411.3
2024-03-01	1676.4	1693.4	1464	1411.3
2024-02-01	1676.4	1693.4	1464	1411.3
2024-01-01	1676.4	1693.4	1464	1411.3
2023-12-01	1631.2	1642.4	1464	1411.3
2023-11-01	1631.2	1642.4	1464	1411.3

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	CP Ope 2022 (A)	2022-02-19	2022-02-19	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	2021 Lubowski Open Tournament (A)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	KHS 2021 (A)	2021-04-10	2021-04-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis
4	Gimnasium 2020 (U20)	2020-02-01	2020-02-01	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
5	2020 Registration Tournament (A)	2020-01-25	2020-01-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
6	2019 South African Junior Team Championships (U16A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
7	Matlosana Mall 2019 (A)	2019-10-04	2019-10-04	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
8	2019 Etienne Lewis Trials (U16 Boys)	2019-08-30	2019-09-01	Standard	Tshwane (GTP)	7	7	3.5	Yes	Analysis
9	2019 Jacaranda Round Robin (C)	2019-08-03	2019-08-03	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
10	2019 Alekhine Open (A)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
11	2019 Menlo Open (A)	2019-07-13	2019-07-13	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
12	2019 Waterkloof Open (A)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
13	2019 South African Junior Closed Chess Championship (U14 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	5.5	Yes	Analysis
14	Wesvalia 2019 (A)	2019-02-16	2019-02-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
15	2019 Tshwane Chess Registration Tournament (B)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
16	2018 Tshwane Inter Region (U14A)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	5	5	4.5	Yes	Analysis
17	South African Junior Blitz 2018 (U14)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
18	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
19	2018 Lardies Ope (B)	2018-10-27	2018-10-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
20	2018 Etienne Lewis Trials (U14 Boys)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	4.5	Yes	Analysis
21	2018 Alekhine Open (B)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	3.5	Yes	Analysis
22	2018 Menlo Open Chess Tournament (B)	2018-07-21	2018-07-21	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
23	2018 Lubowski Open (A)	2018-05-12	2018-05-12	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
24	2018 Capablanca Swiss (A)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
25	Hervormde Kerk 2018 (Open)	2018-04-21	2018-04-21	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
26	2018 Waterkloof Open (A)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
27	South African Junior Blitz 2017 Championships (A)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	7	3	Yes	Analysis
28	South African Junior Team Championships 2017 (U14A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	1	Yes	Analysis

#	Games	Start				End
1	10	Tournament Gimnasium 2020				Tournament 2021 Lubowski Open Tournament
		date 2020-02-01	rnd 5	type Standard	result 1	date 2021-05-02	rnd 4	type Standard	result 0.5
		Opponent Dladla, G (Gift)				Opponent Dinham, J (James)
2	9	Tournament South African Junior Team Championships 2018				Tournament South African Junior Blitz 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Becker, M (Matthew)				Opponent Mnyasta, T (Tezihano)
3	8	Tournament Matlosana Mall 2019				Tournament 2019 South African Junior Team Championships
		date 2019-10-04	rnd 5	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Mankuroane, M (Morekolodi)				Opponent Smohlela, M (Mnqobi)

#	Games	Start				End
1	10	Tournament Gimnasium 2020				Tournament 2021 Lubowski Open Tournament
		date 2020-02-01	rnd 5	type Standard	result 1	date 2021-05-02	rnd 4	type Standard	result 0.5
		Opponent Dladla, G (Gift)				Opponent Dinham, J (James)
2	8	Tournament Matlosana Mall 2019				Tournament 2019 South African Junior Team Championships
		date 2019-10-04	rnd 5	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Mankuroane, M (Morekolodi)				Opponent Smohlela, M (Mnqobi)
3	7	Tournament South African Junior Team Championships 2018				Tournament 2019 Tshwane Chess Registration Tournament
		date 2018-12-16	rnd 2	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Becker, M (Matthew)				Opponent Lodi, N (Neo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2018
		date 2018-01-07	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Mantje, K (Katleho)				Opponent Mnyasta, T (Tezihano)
2	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 1	type Blitz	result 1	date 2018-01-07	rnd 1	type Blitz	result 1
		Opponent Pesa, MA (Mofoka)				Opponent Pesa, MA (Mofoka)

#	Games	Start				End
1	5	Tournament 2018 Lardies Ope				Tournament 2018 Tshwane Inter Region
		date 2018-10-27	rnd 5	type Standard	result 1	date 2018-12-01	rnd 4	type Standard	result 1
		Opponent Koning, L (Lehan)				Opponent Van Rhyn, J (Josh)
2	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Coetzee, J (Jaco)				Opponent Mnyasta, T (Tezihano)
3	4	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-18	rnd 5	type Standard	result 1
		Opponent Becker, M (Matthew)				Opponent Coetsee, W (Wilco)

#	Games	Start				End
1	5	Tournament 2018 Lardies Ope				Tournament 2018 Tshwane Inter Region
		date 2018-10-27	rnd 5	type Standard	result 1	date 2018-12-01	rnd 4	type Standard	result 1
		Opponent Koning, L (Lehan)				Opponent Van Rhyn, J (Josh)
2	4	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-18	rnd 5	type Standard	result 1
		Opponent Becker, M (Matthew)				Opponent Coetsee, W (Wilco)
3	3	Tournament CP Ope 2022				Tournament CP Ope 2022
		date 2022-02-19	rnd 3	type Standard	result 1	date 2022-02-19	rnd 5	type Standard	result 1
		Opponent Phiri, J (Justice)				Opponent Tissot Van Patot, A (Anton)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2018
		date 2018-01-07	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Mantje, K (Katleho)				Opponent Mnyasta, T (Tezihano)
2	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 1	type Blitz	result 1	date 2018-01-07	rnd 1	type Blitz	result 1
		Opponent Pesa, MA (Mofoka)				Opponent Pesa, MA (Mofoka)

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	Fourie ,B (Brandon)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
1	Fourie ,B (Brandon)	4	1585.3	1691.5	4	1602.3	1691.5	0	0	0	0	0	0
2	Nguyen ,MT (Minh Thien)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
2	Nguyen ,MT (Minh Thien)	3	1524.4	1524.4	3	1541.6	1524.4	0	0	0	0	0	0
3	Grobbelaar ,J (Jacqui)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Grobbelaar ,J (Jacqui)	3	1624.8	1199.8	3	1624.4	1199.8	0	0	0	0	0	0
4	Oosthuizen ,MJ (Michal Jacobus)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Oosthuizen ,MJ (Michal Jacobus)	3	1665.5	1382.2	3	1657.8	1382.2	0	0	0	0	0	0
5	Koning ,J (Jaedin)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Koning ,J (Jaedin)	3	1421.7	1280	3	1426.5	1280	0	0	0	0	0	0
6	Govender ,Y (Yaduvir)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
6	Govender ,Y (Yaduvir)	3	1549.8	1549.8	3	1549	1549.8	0	0	0	0	0	0
7	Modi ,Y (Yashil)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Modi ,Y (Yashil)	2	1869.1	1444.1	2	1868	1444.1	0	0	0	0	0	0
8	Van Straaten ,MJ (Matthys Jacobus)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Van Straaten ,MJ (Matthys Jacobus)	2	1194.2	1406.8	2	1196.7	1406.8	0	0	0	0	0	0
9	Vermeulen ,EJ (Ernestus Jacobus)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Vermeulen ,EJ (Ernestus Jacobus)	2	1479.5	1692	2	1473.9	1692	0	0	0	0	0	0
10	Kruger ,MJ (Matthew John)	2	1	0	2	1	0	0	0	0	0	0	0
10	Kruger ,MJ (Matthew John)	2	1391.1	1391.1	2	1392.6	1391.1	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

Lubbe, DS (David Stefanus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms