Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mostert, AG (Adriaan Gert)

Chess SA id

106044725

FIDE id

Date of birth

2006-03-01 (U20)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1743.3	1801.9	1772	1400.1
Raw rating	1743.3	1801.9	1772	1400.1
Weighted rating	1742.8	1800.7	1768.3	1400.1
Weighted performance	851.4	708	0	0
Floor	1243.3	1301.9	1272	900.1
K-factor	28	24	28	32
Min/Max rating change allowed	76.5	70.3	73.4	124.7
Highest rating	1743.3 2024-02-01	1801.9 2024-02-01	1772 2024-02-01	1400.1 2024-02-01
Highest raw rating	1743.3 2024-02-01	1801.9 2024-02-01	1772 2024-02-01	1400.1 2024-02-01
Highest weighted rating	1741.6 2025-08-01	1798.2 2025-08-01	1759.5 2025-08-01	1400.1 2025-08-01
Highest weighted performance	1675.8 2019-08-01	1663 2019-08-01	1373.2 2019-09-01	1358.2 2023-09-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1743.3	1801.9	1772	1400.1
Analysis
Rating	1743.3	1801.9	1772	1400.1
Raw rating	1743.3	1801.9	1772	1400.1
Weighted rating	1742.8	1800.7	1768.3
Weighted performance	851.4	708	0
K-factor	28	24	28	32
Floor	1243.3	1301.9	1272	900.1
Max/Min rating change allowed	76.5	70.3	73.4	124.7
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	1743.3	1801.9	1772	1400.1
New weighted rating	1743.2	1801.5	1770.8	1400.1
New weighted performance	850.9	707.4	0	0
Temp new rating	1743.3	1801.9	1772	1400.1
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1743.3	1801.9	1772	1400.1
New K-factor	28	24	28	32
New floor	1243.3	1301.9	1272	900.1

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	11	3	0	8
	0	0	0	0
	10	10	0	0
History	477	438	31	8

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	123	89	72.36	190	1416.2	1606.2
Standard	98	68.5	69.9	169.1	1444.3	1613.4
Rapid	17	13.5	79.41	250	1320.9	1570.9
Blitz	8	7	87.5	318.8	1274.5	1593.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1743.3	1801.9	1772	1400.1
2025-09-01	1743.3	1801.9	1772	1400.1
2025-08-01	1743.3	1801.9	1772	1400.1
2025-07-01	1743.3	1801.9	1772	1400.1
2025-06-01	1743.3	1801.9	1772	1400.1
2025-05-01	1743.3	1801.9	1772	1400.1
2025-04-01	1743.3	1801.9	1772	1400.1
2025-03-01	1743.3	1801.9	1772	1400.1
2025-02-01	1743.3	1801.9	1772	1400.1
2025-01-01	1743.3	1801.9	1772	1400.1
2024-12-01	1743.3	1801.9	1772	1400.1
2024-11-01	1743.3	1801.9	1772	1400.1
2024-10-01	1743.3	1801.9	1772	1400.1
2024-09-01	1743.3	1801.9	1772	1400.1
2024-08-01	1743.3	1801.9	1772	1400.1
2024-07-01	1743.3	1801.9	1772	1400.1
2024-06-01	1743.3	1801.9	1772	1400.1
2024-08-01	1743.3	1801.9	1772	1400.1
2024-04-01	1743.3	1801.9	1772	1400.1
2024-03-01	1743.3	1801.9	1772	1400.1
2024-02-01	1743.3	1801.9	1772	1400.1
2024-01-01	1743.3	1801.9	1772	1400.1
2023-12-01	1692.7	1690.8	1397.3	1400.1
2023-11-01	1692.7	1690.8	1397.3	1400.1

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	Helpmekaar Kollege Blitz Chess Invitational Sep 2023	2023-09-16	2023-09-16	Blitz	Johannesburg Metro (GJM)	9	8	7	Yes	Analysis
2	WP Club League 2023 (D1)	2023-07-29	2023-08-19	Standard	Cape Town (WCT)	6	3	2	Yes	Analysis
3	2021 Lubowski Open Tournament (A)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
4	Back to the Board 2021 (U16)	2021-04-17	2021-04-17	Standard	Bojanala Platina (NBR)	5	0	0	No	Analysis
5	2021 Blou Bul Tournament (A)	2021-04-10	2021-04-10	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Ekurhuleni Chess Kempton Park Open 2020 (A)	2020-11-21	2020-11-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	JNW Club - Junior A High School 2020	2020-03-07	2020-03-07	Rapid	Johannesburg Metro (GJM)	5	4	4	Yes	Analysis
8	2020 Piet Robbertse (A)	2020-01-31	2020-02-02	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
9	ChessExcellence September Club Rapid 2019	2019-09-24	2019-09-24	Rapid	Chess Excellence (CEX)	5	3	1	Yes	Analysis
10	2019 Gauteng School League Finals (U13 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
11	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	5	Yes	Analysis
12	2019 South African Junior Closed Chess Championship (U14 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	6	Yes	Analysis
13	JNW Club - Bryanston Open 1 2019 (A)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
14	2018 Tshwane Inter Region (U14A)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
15	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
16	2018 Gauteng North Open (A)	2018-10-20	2018-10-21	Standard	Tshwane (GTP)	5	0	0	No	Analysis
17	2018 Gauteng League Final (U13)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
18	2018 Alekhine Open (B)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	5.5	Yes	Analysis
19	2018 Menlo Open Chess Tournament (B)	2018-07-21	2018-07-21	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
20	2018 Lubowski Open (A)	2018-05-12	2018-05-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
21	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	3.5	Yes	Analysis
22	2018 South African Junior Closed Chess Championships (U12 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	6.5	Yes	Analysis
23	JCC Wits 2018 (A)	2018-02-25	2018-02-25	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
24	South African Junior Team Championships 2017 (U12A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis

#	Games	Start				End
1	28	Tournament 2018 Menlo Open Chess Tournament				Tournament JNW Club - Bryanston Open 1 2019
		date 2018-07-21	rnd 4	type Standard	result 1	date 2019-01-26	rnd 3	type Standard	result 1
		Opponent Shaw, LA (Laurie Ann)				Opponent Tapera, U (Uzeni)
2	14	Tournament 2019 South African Junior Closed Chess Championship				Tournament ChessExcellence September Club Rapid 2019
		date 2019-03-21	rnd 7	type Standard	result 0.5	date 2019-09-24	rnd 1	type Rapid	result 1
		Opponent Kruger, MJ (Matthew)				Opponent Ismail, I (Imaan)
3	5	Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023
		date 2023-09-16	rnd 4	type Blitz	result 1	date 2023-09-16	rnd 9	type Blitz	result 1
		Opponent Heunes, M (Morne)				Opponent Scullard, S (Sienne)

#	Games	Start				End
1	28	Tournament 2018 Menlo Open Chess Tournament				Tournament JNW Club - Bryanston Open 1 2019
		date 2018-07-21	rnd 4	type Standard	result 1	date 2019-01-26	rnd 3	type Standard	result 1
		Opponent Shaw, LA (Laurie Ann)				Opponent Tapera, U (Uzeni)
2	12	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2020 Piet Robbertse
		date 2019-03-21	rnd 7	type Standard	result 0.5	date 2020-02-02	rnd 4	type Standard	result 1
		Opponent Kruger, MJ (Matthew)				Opponent Steyn, H (Hans)
3	4	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Van Straaten, MJ (Matthys)				Opponent Brandt, DW (Declan William)

#	Games	Start				End
1	6	Tournament 2019 Super 12 Laerskole				Tournament ChessExcellence September Club Rapid 2019
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-09-24	rnd 1	type Rapid	result 1
		Opponent Posthumus, R (Ruan)				Opponent Ismail, I (Imaan)
2	4	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 2	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Donald, R (Ryan)				Opponent Buhrmann, J (Johann)
3	4	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 0.5
		Opponent Potgieter, A (Awie)				Opponent Delport, B (Ben)

#	Games	Start				End
1	5	Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023
		date 2023-09-16	rnd 4	type Blitz	result 1	date 2023-09-16	rnd 9	type Blitz	result 1
		Opponent Heunes, M (Morne)				Opponent Scullard, S (Sienne)
2	2	Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023
		date 2023-09-16	rnd 1	type Blitz	result 1	date 2023-09-16	rnd 2	type Blitz	result 1
		Opponent Adam, S (Saeb)				Opponent Rakgole, J (Jie)

#	Games	Start				End
1	20	Tournament 2018 Alekhine Open				Tournament JNW Club - Bryanston Open 1 2019
		date 2018-08-11	rnd 5	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Mazibuko, B (Buhle)				Opponent Boshoma, C (Chisomo)
2	12	Tournament 2019 South African Junior Closed Chess Championship				Tournament ChessExcellence September Club Rapid 2019
		date 2019-03-22	rnd 9	type Standard	result 1	date 2019-09-24	rnd 1	type Rapid	result 1
		Opponent Govender, S (Shevern)				Opponent Ismail, I (Imaan)
3	5	Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023
		date 2023-09-16	rnd 4	type Blitz	result 1	date 2023-09-16	rnd 9	type Blitz	result 1
		Opponent Heunes, M (Morne)				Opponent Scullard, S (Sienne)

#	Games	Start				End
1	20	Tournament 2018 Alekhine Open				Tournament JNW Club - Bryanston Open 1 2019
		date 2018-08-11	rnd 5	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Mazibuko, B (Buhle)				Opponent Boshoma, C (Chisomo)
2	6	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 Gauteng School League Finals
		date 2019-03-22	rnd 9	type Standard	result 1	date 2019-08-23	rnd 5	type Standard	result 1
		Opponent Govender, S (Shevern)				Opponent Huisamen, BB (Botha)
3	5	Tournament 2018 Menlo Open Chess Tournament				Tournament 2018 Alekhine Open
		date 2018-07-21	rnd 4	type Standard	result 1	date 2018-08-09	rnd 3	type Standard	result 1
		Opponent Shaw, LA (Laurie Ann)				Opponent Vather, K (Kasmira)

#	Games	Start				End
1	6	Tournament 2019 Super 12 Laerskole				Tournament ChessExcellence September Club Rapid 2019
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-09-24	rnd 1	type Rapid	result 1
		Opponent Posthumus, R (Ruan)				Opponent Ismail, I (Imaan)
2	4	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 2	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Donald, R (Ryan)				Opponent Buhrmann, J (Johann)
3	3	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Potgieter, A (Awie)				Opponent Van Den Bergh, M (Marilene)

#	Games	Start				End
1	5	Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023
		date 2023-09-16	rnd 4	type Blitz	result 1	date 2023-09-16	rnd 9	type Blitz	result 1
		Opponent Heunes, M (Morne)				Opponent Scullard, S (Sienne)
2	2	Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational Sep 2023
		date 2023-09-16	rnd 1	type Blitz	result 1	date 2023-09-16	rnd 2	type Blitz	result 1
		Opponent Adam, S (Saeb)				Opponent Rakgole, J (Jie)

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	Govender ,S (Shevern)	4	2	0	4	2	0	0	0	0	0	0	0
1	Govender ,S (Shevern)	4	1497.6	1497.6	4	1499.1	1497.6	0	0	0	0	0	0
2	Vather ,S (Shayur)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Vather ,S (Shayur)	3	1432.4	1574.1	3	1431.3	1574.1	0	0	0	0	0	0
3	Delport ,B (Ben)	3	2.5	283.3	1	1	425	2	1.5	212.5	0	0	0
3	Delport ,B (Ben)	3	1208.6	1491.9	1	1070.1	1633.6	2	1128.9	1421.1	0	0	0
4	Huisamen ,BB (Botha Brandt)	2	2	425	2	2	425	0	0	0	0	0	0
4	Huisamen ,BB (Botha Brandt)	2	1418	1843	2	1439.8	1843	0	0	0	0	0	0
5	Potgieter ,E (Edward)	2	2	425	2	2	425	0	0	0	0	0	0
5	Potgieter ,E (Edward)	2	1475.9	1900.9	2	1469	1900.9	0	0	0	0	0	0
6	Bezuidenhout ,LP (Lian Pierre)	2	1	0	2	1	0	0	0	0	0	0	0
6	Bezuidenhout ,LP (Lian Pierre)	2	1625.4	1625.4	2	1616.9	1625.4	0	0	0	0	0	0
7	Mpya ,TM (Tshediso Matome)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Mpya ,TM (Tshediso Matome)	2	1961.9	1749.4	2	1952	1749.4	0	0	0	0	0	0
8	Bosch ,A (Altus)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Bosch ,A (Altus)	2	1278.6	1491.1	2	1272.4	1491.1	0	0	0	0	0	0
9	Ristic ,A (Andrej)	2	2	425	2	2	425	0	0	0	0	0	0
9	Ristic ,A (Andrej)	2	1357.6	1782.6	2	1353.8	1782.6	0	0	0	0	0	0
10	Govender ,L (Lesharn)	2	2	425	2	2	425	0	0	0	0	0	0
10	Govender ,L (Lesharn)	2	1235.6	1660.6	2	1238.5	1660.6	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

Mostert, AG (Adriaan Gert)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms