Chess South Africa Ratings Database

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Personal

De Villiers, OA (Ockert Almaro)

Chess SA id

197006856

FIDE id

Date of birth

1997-10-15 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1724.6	1727.3	1563	1575.3
Raw rating	1724.6	1727.3	1563	1575.3
Weighted rating	1713.7	1716.7	1563	1575.3
Weighted performance	1527.6	1532	0	0
Floor	1263.3	1264.9	1063	1089.9
K-factor	28	28	32	32
Min/Max rating change allowed	78.5	78.2	98.9	97.1
Highest rating	1775.6 2019-07-01	1781.8 2019-07-01	1563 2019-06-01	1605.6 2018-07-01
Highest raw rating	1763.3 2021-09-01	1764.9 2021-09-01	1563 2024-02-01	1589.9 2018-08-01
Highest weighted rating	1763.3 2021-11-01	1764.9 2021-11-01	1563 2019-06-01	1589.9 2020-01-01
Highest weighted performance	1775.6 2019-07-01	1781.8 2019-07-01	1200 2024-02-01	1605.6 2018-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1724.6	1727.3	1563	1575.3
Analysis
Rating	1724.6	1727.3	1563	1575.3
Raw rating	1724.6	1727.3	1563	1575.3
Weighted rating	1713.7	1716.7	1563
Weighted performance	1527.6	1532	0
K-factor	28	28	32	32
Floor	1263.3	1264.9	1063	1089.9
Max/Min rating change allowed	78.5	78.2	98.9	97.1
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	1724.6	1727.3	1563	1575.3
New weighted rating	1716.1	1719.2	1563	1575.3
New weighted performance	1517	1521.5	0	0
Temp new rating	1724.6	1727.3	1563	1575.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1724.6	1727.3	1563	1575.3
New K-factor	28	28	32	32
New floor	1263.3	1264.9	1063	1089.9

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	5	5	0	0
	18	18	0	0
	33	33	0	0
	46	46	0	0
	10	10	0	0
History	886	820	37	29

Games since
	Main 28	Standard 28		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	5	2.5	50	0	1700.8	1700.8
Standard	5	2.5	50	0	1700.8	1700.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	200	111.5	55.75	48.9	1628.9	1677.8
Standard	178	98.5	55.34	45.4	1638.2	1683.5
Rapid	0	0	0	0	0	0
Blitz	22	13	59.09	77.3	1553.9	1631.2

Date	Main	Standard	Rapid	Blitz
2025-11-01	1724.6	1727.3	1563	1575.3
2025-09-30	1724.6	1727.3	1563	1575.3
2025-09-01	1724.6	1727.3	1563	1575.3
2025-08-01	1724.6	1727.3	1563	1575.3
2025-07-01	1724.6	1727.3	1563	1575.3
2025-06-01	1724.6	1727.3	1563	1575.3
2025-05-01	1724.6	1727.3	1563	1575.3
2025-04-01	1724.6	1727.3	1563	1575.3
2025-03-01	1724.6	1727.3	1563	1575.3
2025-02-01	1729.5	1734.1	1563	1575.3
2025-01-01	1729.5	1734.1	1563	1575.3
2024-12-01	1729.5	1734.1	1563	1575.3
2024-11-01	1729.5	1734.1	1563	1575.3
2024-10-01	1729.5	1734.1	1563	1575.3
2024-09-01	1668.7	1672.8	1563	1575.3
2024-08-01	1668.7	1672.8	1563	1575.3
2024-07-01	1668.7	1672.8	1563	1575.3
2024-09-01	1668.7	1672.8	1563	1575.3
2024-05-01	1668.7	1672.8	1563	1575.3
2024-04-01	1637.6	1633.3	1563	1575.3
2024-03-01	1637.6	1633.3	1563	1575.3
2024-02-01	1637.6	1633.3	1563	1575.3
2024-01-01	1622.6	1620.1	1563	1575.3
2023-12-01	1622.6	1620.1	1563	1575.3

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JMC Kick Off 2025 (A)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JMC Kick Off 2025 (A)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
2	2024 Moja Chess Extravaganza (Prestige)	2024-09-25	2024-09-29	Standard	Frances Baard (NCF)	9	8	3	Yes	Analysis
3	NABOOMSPAR Open Chess Tournament 2024 (Open)	2024-04-27	2024-04-27	Standard	Waterberg (LWM)	5	5	5	Yes	Analysis
4	2024 Gauteng Inter-Region Chess Championship (Adult A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
5	2023 USSA Championships (Open)	2023-12-04	2023-12-08	Standard	Ethekwini (KED)	9	5	3	Yes	Analysis
6	2023 Elize Steenkamp Open Tournament (A)	2023-06-16	2023-06-17	Standard	Tshwane (GTP)	6	3	0.5	Yes	Analysis
7	DR Kenneth Kaunda Curro 2023 (A+B)	2023-04-22	2023-04-22	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis
8	Ekurhuleni Springs Open 4 March 2023 (A)	2023-03-04	2023-03-04	Standard	Ekurhuleni (GE)	5	5	4.5	Yes	Analysis
9	Heidelberg Open 2023 (A)	2023-02-04	2023-02-04	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
10	Cape Town Masters Challenge 2023 (Open)	2023-01-04	2023-01-08	Standard	Cape Town (WCT)	5	5	4.5	Yes	Analysis
11	Laerkool Midvaal Chess Open 2023 (A)	2023-01-28	2023-01-28	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
12	FIDE at The King`s Gate 2.0 2022 (Prestige)	2022-10-21	2022-10-23	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
13	Dr Peter Hangelbroek Open 2022 (A+B)	2022-10-29	2022-10-29	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
14	Chess Power House 2nd RR 2022 (B)	2022-08-20	2022-08-21	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
15	South African Open 2022 (Championship)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	4.5	Yes	Analysis
16	2022 Lubowski Open Tournament (A)	2022-04-08	2022-04-10	Standard	Tshwane (GTP)	6	6	2.5	Yes	Analysis
17	Chess Power House Fide RR 2022 (A)	2022-03-05	2022-03-05	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
18	Heidelberg Open 2022 (A)	2022-02-05	2022-02-05	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
19	JMC @ Pinnacle 2022 (Premier)	2022-02-19	2022-02-20	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
20	Mabaleng Chess Open 2021 (A)	2021-11-27	2021-11-27	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
21	2021 Alekhine Open (A)	2021-08-14	2021-08-15	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
22	Heidelberg Open 2020 (Prestige)	2020-01-31	2020-02-02	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
23	2019 Inter Region Chess Championships	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	3	0.5	Yes	Analysis
24	2019 South African Juior Blitz Championship (A)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
25	LS Voorwaarts & Dr P Hangelbroek Chess Open 2019 (A)	2019-08-31	2019-08-31	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
26	2019 Alekhine Open (A)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
27	Eureka Chess Open 2019 (A)	2019-07-27	2019-07-27	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
28	Doringkruin 2019 (Open)	2019-06-08	2019-06-08	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
29	Dirk de Koster Chess Open 2019 (A)	2019-04-13	2019-04-13	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
30	Boksburg Open 2019 (A)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
31	2018 Inter Region Chess Championships	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
32	South African Junior Blitz 2018 (Open)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	6	2	Yes	Analysis
33	2018 USSA Championship (Open)	2018-07-02	2018-07-06	Standard	Gert Sibande (MGS)	9	9	5.5	Yes	Analysis
34	2018 USSA Championship (Blitz)	2018-07-04	2018-07-04	Blitz	Gert Sibande (MGS)	9	9	7	Yes	Analysis
35	Dalpark Open 2018 (A)	2018-05-04	2018-05-05	Standard	Ekurhuleni (GE)	6	6	3	Yes	Analysis
36	Johan Jurgens Open 2018 (A)	2018-01-26	2018-01-27	Standard	Ekurhuleni (GE)	6	6	3	Yes	Analysis

#	Games	Start				End
1	13	Tournament Heidelberg Open 2023				Tournament DR Kenneth Kaunda Curro 2023
		date 2023-02-04	rnd 3	type Standard	result 0.5	date 2023-04-22	rnd 5	type Standard	result 1
		Opponent Pearson, RW (Russel)				Opponent Van Der Westhuizen, F (Frederik)
2	13	Tournament Dr Peter Hangelbroek Open 2022				Tournament Laerkool Midvaal Chess Open 2023
		date 2022-10-29	rnd 1	type Standard	result 1	date 2023-01-28	rnd 3	type Standard	result 1
		Opponent Huisamen, D (De Villiers)				Opponent Tankiso, J (Julius)
3	6	Tournament NABOOMSPAR Open Chess Tournament 2024				Tournament 2024 Moja Chess Extravaganza
		date 2024-04-27	rnd 1	type Standard	result 1	date 2024-09-25	rnd 2	type Standard	result 1
		Opponent Pieterse, JJ (Johan)				Opponent Handiya, J (Joseph)

#	Games	Start				End
1	13	Tournament Heidelberg Open 2023				Tournament DR Kenneth Kaunda Curro 2023
		date 2023-02-04	rnd 3	type Standard	result 0.5	date 2023-04-22	rnd 5	type Standard	result 1
		Opponent Pearson, RW (Russel)				Opponent Van Der Westhuizen, F (Frederik)
2	13	Tournament Dr Peter Hangelbroek Open 2022				Tournament Laerkool Midvaal Chess Open 2023
		date 2022-10-29	rnd 1	type Standard	result 1	date 2023-01-28	rnd 3	type Standard	result 1
		Opponent Huisamen, D (De Villiers)				Opponent Tankiso, J (Julius)
3	6	Tournament NABOOMSPAR Open Chess Tournament 2024				Tournament 2024 Moja Chess Extravaganza
		date 2024-04-27	rnd 1	type Standard	result 1	date 2024-09-25	rnd 2	type Standard	result 1
		Opponent Pieterse, JJ (Johan)				Opponent Handiya, J (Joseph)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 USSA Championship				Tournament 2018 USSA Championship
		date 2018-07-04	rnd 1	type Blitz	result 1	date 2018-07-04	rnd 4	type Blitz	result 1
		Opponent Mbombo, N (Nhlanhla)				Opponent Buthelezi, N (Ncedo)
2	3	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 5	type Blitz	result 1	date 2020-01-05	rnd 7	type Blitz	result 1
		Opponent Serfontein, C (Christiaan Jacobus)				Opponent Dykema, DR (Dirkho)
3	3	Tournament 2018 USSA Championship				Tournament 2018 USSA Championship
		date 2018-07-04	rnd 7	type Blitz	result 1	date 2018-07-04	rnd 9	type Blitz	result 1
		Opponent Maphumulo, L (Lungelo)				Opponent Sadie, JJH (Johan)

#	Games	Start				End
1	6	Tournament NABOOMSPAR Open Chess Tournament 2024				Tournament 2024 Moja Chess Extravaganza
		date 2024-04-27	rnd 1	type Standard	result 1	date 2024-09-25	rnd 2	type Standard	result 1
		Opponent Pieterse, JJ (Johan)				Opponent Handiya, J (Joseph)
2	6	Tournament Dr Peter Hangelbroek Open 2022				Tournament Cape Town Masters Challenge 2023
		date 2022-10-29	rnd 1	type Standard	result 1	date 2023-01-04	rnd 1	type Standard	result 1
		Opponent Huisamen, D (De Villiers)				Opponent Shapiro, M (Matthew)
3	5	Tournament 2018 USSA Championship				Tournament 2018 USSA Championship
		date 2018-07-03	rnd 4	type Standard	result 1	date 2018-07-04	rnd 4	type Blitz	result 1
		Opponent Mamburu, M (Mutshidzi)				Opponent Buthelezi, N (Ncedo)

#	Games	Start				End
1	6	Tournament NABOOMSPAR Open Chess Tournament 2024				Tournament 2024 Moja Chess Extravaganza
		date 2024-04-27	rnd 1	type Standard	result 1	date 2024-09-25	rnd 2	type Standard	result 1
		Opponent Pieterse, JJ (Johan)				Opponent Handiya, J (Joseph)
2	6	Tournament Dr Peter Hangelbroek Open 2022				Tournament Cape Town Masters Challenge 2023
		date 2022-10-29	rnd 1	type Standard	result 1	date 2023-01-04	rnd 1	type Standard	result 1
		Opponent Huisamen, D (De Villiers)				Opponent Shapiro, M (Matthew)
3	4	Tournament Ekurhuleni Springs Open 4 March 2023				Tournament Ekurhuleni Springs Open 4 March 2023
		date 2023-03-04	rnd 1	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Zingoni, N (Ngaakudzwe)				Opponent Hansrajh, J (Jitrakorn)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 USSA Championship				Tournament 2018 USSA Championship
		date 2018-07-04	rnd 1	type Blitz	result 1	date 2018-07-04	rnd 4	type Blitz	result 1
		Opponent Mbombo, N (Nhlanhla)				Opponent Buthelezi, N (Ncedo)
2	3	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 5	type Blitz	result 1	date 2020-01-05	rnd 7	type Blitz	result 1
		Opponent Serfontein, C (Christiaan Jacobus)				Opponent Dykema, DR (Dirkho)
3	3	Tournament 2018 USSA Championship				Tournament 2018 USSA Championship
		date 2018-07-04	rnd 7	type Blitz	result 1	date 2018-07-04	rnd 9	type Blitz	result 1
		Opponent Maphumulo, L (Lungelo)				Opponent Sadie, JJH (Johan)

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	Mthunzi ,B (Brighton)	5	0	-425	4	0	-425	0	0	0	1	0	-425
1	Mthunzi ,B (Brighton)	5	2033.5	1608.5	4	2048	1608.5	0	0	0	1	2017.8	1608.5
2	Masiya ,MA (Mfundo)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
2	Masiya ,MA (Mfundo)	4	1923.9	1605.2	4	1934.7	1605.2	0	0	0	0	0	0
3	Simpson ,M (Michael)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
3	Simpson ,M (Michael)	4	1850	1637.5	4	1852.4	1637.5	0	0	0	0	0	0
4	Makhosonke ,KM (Kuhlase Matthiolus)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Makhosonke ,KM (Kuhlase Matthiolus)	3	1750.8	1467.5	3	1764.9	1467.5	0	0	0	0	0	0
5	Mpya ,TM (Tshediso Matome)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
5	Mpya ,TM (Tshediso Matome)	3	1953.9	1670.6	3	1963.4	1670.6	0	0	0	0	0	0
6	Pretorius ,HS (Hendrik Stefanus)	3	3	425	3	3	425	0	0	0	0	0	0
6	Pretorius ,HS (Hendrik Stefanus)	3	1348.7	1773.7	3	1334	1773.7	0	0	0	0	0	0
7	Smit ,D (Devon)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
7	Smit ,D (Devon)	3	1470.4	1470.4	3	1463.8	1470.4	0	0	0	0	0	0
8	Theron ,A (Andre)	3	3	425	3	3	425	0	0	0	0	0	0
8	Theron ,A (Andre)	3	1523.3	1948.3	3	1516.4	1948.3	0	0	0	0	0	0
9	Govender ,S (Shevern)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
9	Govender ,S (Shevern)	3	1541.5	1541.5	3	1543.5	1541.5	0	0	0	0	0	0
10	Tshetlo ,T (Tshepo)	3	0	-425	2	0	-425	0	0	0	1	0	-425
10	Tshetlo ,T (Tshepo)	3	1800.6	1375.6	2	1801.2	1375.6	0	0	0	1	1786.5	1375.6

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Villiers, OA (Ockert Almaro)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms