Chess South Africa Ratings Database

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Personal

Drotsky, R (Reynhardt)

Chess SA id

1090144708

FIDE id

Date of birth

2009-01-30 (U18)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

33.4

Junior GPX Points

1230.7

Item	Main	Standard	Rapid	Blitz
Rating	1305.2	1305.7	1165.6	1200
Raw rating	1295.4	1289.7	1165.5	1200
Weighted rating	1305.2	1305.7	1165.6	1200
Weighted performance	1197.9	1194.9	0	0
Floor	866.1	861	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	144.7	145.9	174.2	165.8
Highest rating	1381.1 2024-08-01	1376 2024-08-01	1205.3 2022-10-01	1200 2018-10-01
Highest raw rating	1366.1 2024-09-01	1361 2024-09-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1305.2 2025-11-01	1305.7 2025-11-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1381.1 2024-08-01	1376 2024-08-01	1205.3 2022-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.9	0.5	0.2	0
New rating	1306.1	1306.2	1165.7	1200
Analysis
Rating	1305.2	1305.7	1165.6	1200
Raw rating	1295.4	1289.7	1165.5	1200
Weighted rating	1305.2	1305.7	1165.6
Weighted performance	1197.9	1194.9	0
K-factor	36	36	36	36
Floor	866.1	861	700	700
Max/Min rating change allowed	144.7	145.9	174.2	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	1295.4	1289.7	1165.5	1200
New weighted rating	1306.1	1306.2	1165.7	1200
New weighted performance	1190.6	1187.5	0	0
Temp new rating	1306.1	1306.2	1165.7	1200
Temp new rating +/-	0.9	0.5	0.2	0
Final new rating +/-	0.9	0.5	0.2	0
New rating	1306.1	1306.2	1165.7	1200
New K-factor	36	36	36	36
New floor	866.1	861	700	700

Item	Main	Standard	Rapid
	0	0	0
	18	13	5
	58	53	5
	67	62	5
	11	5	6
	0	0	0
History	154	133	21

Games since
	Main 81	Standard 71		Rapid 10		Blitz 0
Gender	Male
Age group	U18
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3219		1080		119
Male	2515		837		94
U18	489		178		21
U18 Male	401		144		19
Standard
	RSA		Province		Region
Overall	3126		1126		128
Male	2461		888		102
U18	499		193		26
U18 Male	417		159		23
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	18	10	55.56	47.2	1237	1284.2
Standard	13	7	53.85	32.7	1225.5	1258.2
Rapid	5	3	60	85	1266.9	1351.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	154	73	47.4	-22.1	1261.6	1239.6
Standard	133	63	47.37	-22.4	1261.1	1238.7
Rapid	21	10	47.62	-20.2	1265.1	1244.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1295.4	1289.7	1165.5	1200
2025-09-30	1306.2	1303.8	1165.5	1200
2025-09-01	1306.2	1303.8	1165.5	1200
2025-08-01	1322.8	1323.7	1165.5	1200
2025-07-01	1322.8	1323.7	1165.5	1200
2025-06-01	1322.8	1323.7	1165.5	1200
2025-05-01	1320.1	1325	1165.5	1200
2025-04-01	1316.4	1325	1171.6	1200
2025-03-01	1316.4	1325	1171.6	1200
2025-02-01	1316.4	1325	1171.6	1200
2025-01-01	1316.4	1325	1171.6	1200
2024-12-01	1322.8	1329.3	1171.6	1200
2024-11-01	1308.2	1312.4	1171.6	1200
2024-10-01	1302.2	1289.7	1157.9	1200
2024-09-01	1366.1	1361	1157.9	1200
2024-08-01	1278.8	1272.9	1157.9	1200
2024-07-01	1278.8	1272.9	1157.9	1200
2024-09-01	1278.8	1272.9	1157.9	1200
2024-05-01	1278.8	1272.9	1157.9	1200
2024-04-01	1183.5	1181.6	1157.9	1200
2024-03-01	1162.9	1157.8	1157.9	1200
2024-02-01	1162.9	1157.8	1157.9	1200
2024-01-01	1212	1209.6	1157.9	1200
2023-12-01	1212	1209.6	1157.9	1200

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	2025 Gauteng Top Schools Teams (U17)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	GDE (D7) Sedibeng East Schools 2025 (U17)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
3	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U18 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	HS Overvaal Rapid 12 Apr 2025 (B)	2025-04-12	2025-04-12	Rapid	Sedibeng (GSV)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U17)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	GDE (D7) Sedibeng East Schools 2025 (U17)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
3	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U18 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	HS Overvaal Rapid 12 Apr 2025 (B)	2025-04-12	2025-04-12	Rapid	Sedibeng (GSV)	5	5	3	Yes	Analysis
5	Gauteng Inter-Region at UJ 2024 (U16 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
6	Queens Gambit Chess Open 2024 (B)	2024-11-23	2024-11-23	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
7	NWU Vaal Chess Open 12 Oct 2024 (C)	2024-10-12	2024-10-12	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
8	Gauteng Top Schools 2024 (U15 Open)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
9	Gauteng Schools Individuals Finals 2024 (U15 Boys)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
10	North School Primary Chess Open 2024 (B)	2024-08-31	2024-08-31	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
11	Sedibeng East D7 Teams Trials 2024 (U15)	2024-08-03	2024-08-03	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
12	Hoerskool Overvaal Chess Open 2024 (B)	2024-04-20	2024-04-20	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
13	Vaalpark Primary Chess Open 2024 (B)	2024-04-13	2024-04-13	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
14	HS Drie Riviere Chess Open Section 2024	2024-03-09	2024-03-09	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
15	Valia's Open 2024 (C)	2024-03-02	2024-03-02	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
16	2024 Gauteng Inter-Region Chess Championship (U16B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	0.5	Yes	Analysis
17	Queens Gambit Chess Open 2023 (C)	2023-11-25	2023-11-25	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
18	NWU Vaal Open 2023 (C)	2023-10-14	2023-10-14	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
19	Dr Pieter Hangelbroek Rapid 2023 (B)	2023-10-28	2023-10-28	Rapid	Sedibeng (GSV)	5	5	1.5	Yes	Analysis
20	Fonteine Chess Open 2023 (C)	2023-09-02	2023-09-02	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
21	2023 Gauteng Top Schools (U15 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	4	2	Yes	Analysis
22	NG Kerk Vanderbijlpark Suid Open 2023 (C)	2023-08-26	2023-08-26	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
23	Gauteng D7 Teams 2023 (U15)	2023-08-12	2023-08-12	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
24	Overvaal Ope Jul 2023 (B)	2023-07-22	2023-07-22	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
25	Valia's Chess Tournament 2023 (C)	2023-05-06	2023-05-06	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
26	Gauteng Schools D7 2023 (U15 Boys)	2023-05-20	2023-05-20	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
27	Driehoek Open Chess Tournament 2023 (C)	2023-09-13	2023-09-13	Standard	Sedibeng (GSV)	5	4	1	Yes	Analysis
28	Overvaal Open 2023 (C)	2023-04-15	2023-04-15	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
29	Hoerskool Drie Riviere Open 2023 (C)	2023-03-11	2023-03-11	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
30	Laerkool Midvaal Chess Open 2023 (C)	2023-01-28	2023-01-28	Standard	Sedibeng (GSV)	5	4	0.5	Yes	Analysis
31	Super 8 Skaak 2022 (Seniors)	2022-10-14	2022-10-14	Rapid	Bojanala Platina (NBR)	7	6	3	Yes	Analysis
32	D7 Teams 2022 (U13 Mixed+Girls)	2022-08-13	2022-08-13	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament Hoerskool Overvaal Chess Open 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-04-20	rnd 4	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Tefu, R (Reyaleboha)				Opponent Runganga, T (Troy Anesu)
2	4	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-05-24	rnd 2	type Standard	result 1
		Opponent Tolmay, L (Llewellyn)				Opponent Mbhele, I (Izanokuhle Khauhelo)
3	3	Tournament Queens Gambit Chess Open 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-11-23	rnd 4	type Standard	result 1	date 2024-12-07	rnd 1	type Standard	result 1
		Opponent Du Plooy, M (Matthew)				Opponent De Jager, L (Lorent)

#	Games	Start				End
1	7	Tournament Hoerskool Overvaal Chess Open 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-04-20	rnd 4	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Tefu, R (Reyaleboha)				Opponent Runganga, T (Troy Anesu)
2	3	Tournament Queens Gambit Chess Open 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-11-23	rnd 4	type Standard	result 1	date 2024-12-07	rnd 1	type Standard	result 1
		Opponent Du Plooy, M (Matthew)				Opponent De Jager, L (Lorent)
3	3	Tournament HS Drie Riviere Chess Open Section 2024				Tournament HS Drie Riviere Chess Open Section 2024
		date 2024-03-09	rnd 2	type Standard	result 1	date 2024-03-09	rnd 4	type Standard	result 1
		Opponent Schoombie, W (Willem)				Opponent Tshabalala, R (Reatiaretse)

#	Games	Start				End
1	3	Tournament Super 8 Skaak 2022				Tournament Super 8 Skaak 2022
		date 2022-10-14	rnd 3	type Rapid	result 1	date 2022-10-14	rnd 5	type Rapid	result 1
		Opponent Engelbrecht, B (Bernice)				Opponent Maritz, J (Joanell)
2	2	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-04-12	rnd 5	type Rapid	result 1
		Opponent Tolmay, L (Llewellyn)				Opponent Mabula, M (Motebang)
3	1	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 2	type Rapid	result 1	date 2025-04-12	rnd 2	type Rapid	result 1
		Opponent Germeshuys, C (Chanel)				Opponent Germeshuys, C (Chanel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Hoerskool Overvaal Chess Open 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-04-20	rnd 4	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Tefu, R (Reyaleboha)				Opponent Runganga, T (Troy Anesu)
2	4	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-05-24	rnd 2	type Standard	result 1
		Opponent Tolmay, L (Llewellyn)				Opponent Mbhele, I (Izanokuhle Khauhelo)
3	3	Tournament Queens Gambit Chess Open 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-11-23	rnd 4	type Standard	result 1	date 2024-12-07	rnd 1	type Standard	result 1
		Opponent Du Plooy, M (Matthew)				Opponent De Jager, L (Lorent)

#	Games	Start				End
1	7	Tournament Hoerskool Overvaal Chess Open 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-04-20	rnd 4	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Tefu, R (Reyaleboha)				Opponent Runganga, T (Troy Anesu)
2	3	Tournament Queens Gambit Chess Open 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-11-23	rnd 4	type Standard	result 1	date 2024-12-07	rnd 1	type Standard	result 1
		Opponent Du Plooy, M (Matthew)				Opponent De Jager, L (Lorent)
3	3	Tournament HS Drie Riviere Chess Open Section 2024				Tournament HS Drie Riviere Chess Open Section 2024
		date 2024-03-09	rnd 2	type Standard	result 1	date 2024-03-09	rnd 4	type Standard	result 1
		Opponent Schoombie, W (Willem)				Opponent Tshabalala, R (Reatiaretse)

#	Games	Start				End
1	3	Tournament Super 8 Skaak 2022				Tournament Super 8 Skaak 2022
		date 2022-10-14	rnd 3	type Rapid	result 1	date 2022-10-14	rnd 5	type Rapid	result 1
		Opponent Engelbrecht, B (Bernice)				Opponent Maritz, J (Joanell)
2	2	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-04-12	rnd 5	type Rapid	result 1
		Opponent Tolmay, L (Llewellyn)				Opponent Mabula, M (Motebang)
3	1	Tournament HS Overvaal Rapid 12 Apr 2025				Tournament HS Overvaal Rapid 12 Apr 2025
		date 2025-04-12	rnd 2	type Rapid	result 1	date 2025-04-12	rnd 2	type Rapid	result 1
		Opponent Germeshuys, C (Chanel)				Opponent Germeshuys, C (Chanel)

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	Tolmay ,L (Llewellyn)	5	1	-255	4	0	-425	1	1	425	0	0	0
1	Tolmay ,L (Llewellyn)	5	1376.6	1121.6	4	1358.5	951.6	1	738	1801.6	0	0	0
2	Kok ,L (Largo)	4	2	0	4	2	0	0	0	0	0	0	0
2	Kok ,L (Largo)	4	1305.9	1305.9	4	1304.3	1305.9	0	0	0	0	0	0
3	Van De Venter ,Z (Zandre)	4	0	-425	4	0	-425	0	0	0	0	0	0
3	Van De Venter ,Z (Zandre)	4	1484.5	1059.5	4	1484.9	1059.5	0	0	0	0	0	0
4	Howat ,LC (Logan)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Howat ,LC (Logan)	3	1318.5	893.5	3	1309.3	893.5	0	0	0	0	0	0
5	Nthejane ,T (Tshepang)	3	3	425	3	3	425	0	0	0	0	0	0
5	Nthejane ,T (Tshepang)	3	1140.4	1565.4	3	1128.9	1565.4	0	0	0	0	0	0
6	Van Der Westhuizen ,J (Janu)	2	2	425	2	2	425	0	0	0	0	0	0
6	Van Der Westhuizen ,J (Janu)	2	1255.1	1680.1	2	1245.6	1680.1	0	0	0	0	0	0
7	Steyn ,M (Michelle)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Steyn ,M (Michelle)	2	1157.5	732.5	2	1150.4	732.5	0	0	0	0	0	0
8	Kemp ,J (Jowan)	2	1	0	2	1	0	0	0	0	0	0	0
8	Kemp ,J (Jowan)	2	1413	1413	2	1395.8	1413	0	0	0	0	0	0
9	Marimuthu ,S (Shaylen)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Marimuthu ,S (Shaylen)	2	1340.1	915.1	2	1362.3	915.1	0	0	0	0	0	0
10	Botha ,OJ (Owen Johan)	2	1	0	2	1	0	0	0	0	0	0	0
10	Botha ,OJ (Owen Johan)	2	1327.7	1327.7	2	1323.9	1327.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Drotsky, R (Reynhardt)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms