Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Vos, ES (Eustace Steyn)

Chess SA id

108078354

FIDE id

Date of birth

2008-12-06 (U18)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

29.7

Junior GPX Points

1401.5

Item	Main	Standard	Rapid	Blitz
Rating	1501.2	1463.6	1342.7	785.6
Raw rating	1501.2	1463.6	1342.7	785.6
Weighted rating	1469.9	1430.7	1310.2	785.6
Weighted performance	1436.5	1372.6	1227.9	0
Floor	1001.2	977.7	842.7	500
K-factor	32	32	36	40
Min/Max rating change allowed	108	113.9	135.3	299.3
Highest rating	1532.1 2024-11-01	1506.3 2024-11-01	1342.7 2025-09-01	1200 2018-02-01
Highest raw rating	1501.2 2025-09-30	1477.7 2025-03-01	1342.7 2025-09-01	785.6 2024-02-01
Highest weighted rating	1465 2025-09-30	1424.2 2025-09-30	1300.7 2025-09-01	785.6 2024-11-01
Highest weighted performance	1532.1 2024-11-01	1506.3 2024-11-01	1306 2018-09-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1501.2	1463.6	1342.7	785.6
Analysis
Rating	1501.2	1463.6	1342.7	785.6
Raw rating	1501.2	1463.6	1342.7	785.6
Weighted rating	1469.9	1430.7	1310.2
Weighted performance	1436.5	1372.6	1227.9
K-factor	32	32	36	40
Floor	1001.2	977.7	842.7	500
Max/Min rating change allowed	108	113.9	135.3	299.3
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	1501.2	1463.6	1342.7	785.6
New weighted rating	1474.4	1436.7	1314.3	785.6
New weighted performance	1427.7	1364	1219.5	0
Temp new rating	1501.2	1463.6	1342.7	785.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1501.2	1463.6	1342.7	785.6
New K-factor	32	32	36	40
New floor	1001.2	977.7	842.7	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	27	22	5	0
	33	22	11	0
	26	15	11	0
	0	0	0	0
	0	0	0	0
History	186	108	69	9

Games since
	Main 60	Standard 44		Rapid 16		Blitz 0
Gender	Male
Age group	U18
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1267		400		50
Male	1084		337		40
U18	202		61		11
U18 Male	180		53		9
Standard
	RSA		Province		Region
Overall	1490		405		49
Male	1251		331		38
U18	235		59		12
U18 Male	208		51		10
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	27	19	70.37	173.1	1333.4	1506.5
Standard	22	15	68.18	154.5	1330.8	1485.3
Rapid	5	4	80	255	1344.8	1599.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	168	109.5	65.18	129	1174.1	1303.1
Standard	102	65	63.73	116.7	1165.3	1282
Rapid	57	40.5	71.05	178.9	1188.4	1367.4
Blitz	9	4	44.44	-47.2	1182.9	1135.7

Date	Main	Standard	Rapid	Blitz
2025-11-01	1501.2	1463.6	1342.7	785.6
2025-09-30	1501.2	1463.6	1342.7	785.6
2025-09-01	1493.7	1457.2	1342.7	785.6
2025-08-01	1480.2	1457.2	1307.1	785.6
2025-07-01	1480.2	1457.2	1307.1	785.6
2025-06-01	1480.2	1457.2	1307.1	785.6
2025-05-01	1480.2	1457.2	1307.1	785.6
2025-04-01	1491.2	1474.2	1307.1	785.6
2025-03-01	1494.1	1477.7	1307.1	785.6
2025-02-01	1493.9	1476.5	1307.1	785.6
2025-01-01	1493.9	1476.5	1307.1	785.6
2024-12-01	1493.9	1476.5	1307.1	785.6
2024-11-01	1493.9	1476.5	1307.1	785.6
2024-10-01	1443.2	1420.9	1307.1	785.6
2024-09-01	1391.9	1290.2	1307.1	785.6
2024-08-01	1391.9	1290.2	1307.1	785.6
2024-07-01	1402	1281.2	1307.1	785.6
2024-09-01	1376.8	1281.2	1265.7	785.6
2024-05-01	1376.8	1281.2	1265.7	785.6
2024-04-01	1376.8	1281.2	1265.7	785.6
2024-03-01	1391.7	1283	1265.7	785.6
2024-02-01	1382	1283	1205.6	785.6
2024-01-01	1382	1283	1205.6	785.6
2023-12-01	1382	1283	1205.6	785.6

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	Cape Town Chess Federation Club League 2025 (B)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	0	0	No	Analysis
2	Western Cape Schools - Top Schools 2025 (U17)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
5	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
6	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (B)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	0	0	No	Analysis
2	Western Cape Schools - Top Schools 2025 (U17)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
5	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
6	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
7	Western Cape Club Championship 2024 (Tier 2)	2024-10-25	2024-10-27	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
8	CT League 2024 (C)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	4	2	Yes	Analysis
9	Western Cape Top Schools Championship 2024 (U18 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	3	3	Yes	Analysis
10	Cape Winelands - Top Schools 2024 (U18 Mixed)	2024-07-27	2024-07-27	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
11	Western Cape - Brian Raubenheimer Development Tournament 2024 (U17 Boys)	2024-06-08	2024-06-08	Rapid	Overberg (WOS)	6	5	4	Yes	Analysis
12	Cape Winelands Schools - Prestige 2024 (U18 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
13	Cape Winelands Schools - HS Trials 1 2024 (U18 Boys)	2024-02-17	2024-02-17	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
14	Western Cape Closed Championship 2023 (U16)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
15	Western Cape Top Schools 2023 (U15 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	5	5	Yes	Analysis
16	CW Top Schools 2023 (U15 Mix)	2023-08-26	2023-08-26	Rapid	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
17	Cape Winelands Schools Prestige 2023 (U15 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
18	Cape Winelands Schools Chess - Trials 1 2023 (U15 Boys)	2023-02-25	2023-02-25	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
19	Western Cape Schools Kings & Queens 2019 (Boys)	2019-10-12	2019-10-12	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
20	Stellenberg Youth Chess Championship 2019 (D)	2019-05-01	2019-05-01	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
21	Western Cape Schools Individuals 2019 (U11 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	3	Yes	Analysis
22	Rhenish Primary Chess Tournament 2019 (U12)	2019-05-11	2019-05-11	Rapid	Cape Winelands (WCW)	7	7	5	Yes	Analysis
23	Cape Winelands Schools Closed 2019 (U11 Boys)	2019-03-16	2019-03-17	Standard	Cape Winelands (WCW)	7	7	5.5	Yes	Analysis
24	CW Schools Open 2019 (U11 Boys)	2019-02-02	2019-02-02	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
25	Paul Roos Blitz 2019	2019-02-23	2019-02-23	Blitz	Cape Winelands (WCW)	9	9	4	Yes	Analysis
26	Stellenbosch Primary 2018 (U12)	2018-09-15	2018-09-15	Rapid	Cape Winelands (WCW)	7	6	5.5	Yes	Analysis
27	Western Cape Schools Individuals 2018 (U11 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	2.5	Yes	Analysis
28	Inter Regional 2018 (U12 Team)	2018-05-04	2018-05-05	Standard	Frances Baard (NCF)	5	5	3	Yes	Analysis
29	Cape Winelands Schools Trials 1 2018 (U11 Boys)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
30	Cape Winelands Schools Prestige 2018 (U11 Boys)	2018-03-24	2018-03-25	Standard	Cape Winelands (WCW)	7	7	3	Yes	Analysis
31	South African Junior Team Championships 2017 (U10D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis

#	Games	Start				End
1	12	Tournament CW Top Schools 2023				Tournament Western Cape Closed Championship 2023
		date 2023-08-26	rnd 1	type Rapid	result 1	date 2023-09-23	rnd 2	type Rapid	result 0.5
		Opponent Van Niekerk, J (Jacobus)				Opponent Vorster, P (Paul)
2	11	Tournament Western Cape Schools Individuals 2018				Tournament CW Schools Open 2019
		date 2018-05-20	rnd 5	type Standard	result 0.5	date 2019-02-02	rnd 3	type Rapid	result 1
		Opponent Kruger, S (Sachin)				Opponent Van Zyl, L (Louis)
3	8	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands - Top Schools 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Jeppie, R (Riaad)				Opponent De Wet, M (Malcolm)

#	Games	Start				End
1	6	Tournament Western Cape Top Schools 2023				Tournament Cape Winelands Schools - Prestige 2024
		date 2023-09-02	rnd 1	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent De Waal, E (Erik)				Opponent Odell, E (Eugene)
2	6	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-07	rnd 6	type Standard	result 1
		Opponent Molefinyane, O (Otlotleng)				Opponent Scheepers, CAJ (Christiaan)
3	5	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Club Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-26	rnd 2	type Standard	result 1
		Opponent Burger, M (Marius)				Opponent Temmers, SM (Shaun)

#	Games	Start				End
1	12	Tournament Cape Winelands Schools Trials 1 2018				Tournament CW Schools Open 2019
		date 2018-03-03	rnd 4	type Rapid	result 1	date 2019-02-02	rnd 3	type Rapid	result 1
		Opponent Saoud, J (Jassem)				Opponent Van Zyl, L (Louis)
2	8	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Winelands Top Schools 2025
		date 2024-02-17	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Adler, K (Keano)				Opponent Starke, J (Jesi-Jade)
3	7	Tournament CW Top Schools 2023				Tournament Western Cape Closed Championship 2023
		date 2023-08-26	rnd 1	type Rapid	result 1	date 2023-09-23	rnd 2	type Rapid	result 0.5
		Opponent Van Niekerk, J (Jacobus)				Opponent Vorster, P (Paul)

#	Games	Start				End
1	2	Tournament Paul Roos Blitz 2019				Tournament Paul Roos Blitz 2019
		date 2019-02-23	rnd 3	type Blitz	result 1	date 2019-02-23	rnd 4	type Blitz	result 1
		Opponent Sinzumusi, A (Ahmed)				Opponent Phillips, JA (Jethro)
2	1	Tournament Paul Roos Blitz 2019				Tournament Paul Roos Blitz 2019
		date 2019-02-23	rnd 9	type Blitz	result 1	date 2019-02-23	rnd 9	type Blitz	result 1
		Opponent Madolo, S (Siyolise)				Opponent Madolo, S (Siyolise)
3	1	Tournament Paul Roos Blitz 2019				Tournament Paul Roos Blitz 2019
		date 2019-02-23	rnd 7	type Blitz	result 1	date 2019-02-23	rnd 7	type Blitz	result 1
		Opponent Abrahams, CJ (Chad)				Opponent Abrahams, CJ (Chad)

#	Games	Start				End
1	9	Tournament CW Top Schools 2023				Tournament Western Cape Closed Championship 2023
		date 2023-08-26	rnd 3	type Rapid	result 1	date 2023-09-23	rnd 1	type Rapid	result 1
		Opponent Grobbelaar, A (Altus)				Opponent Sihamba, S (Somila)
2	6	Tournament Western Cape Schools Individuals 2018				Tournament Stellenbosch Primary 2018
		date 2018-05-20	rnd 6	type Standard	result 1	date 2018-09-15	rnd 5	type Rapid	result 1
		Opponent Philander, R (Rayden)				Opponent Sterley, B (Boaz)
3	5	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Club Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-26	rnd 2	type Standard	result 1
		Opponent Burger, M (Marius)				Opponent Temmers, SM (Shaun)

#	Games	Start				End
1	6	Tournament Western Cape Top Schools 2023				Tournament Cape Winelands Schools - Prestige 2024
		date 2023-09-02	rnd 1	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent De Waal, E (Erik)				Opponent Odell, E (Eugene)
2	5	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Club Championship 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-26	rnd 2	type Standard	result 1
		Opponent Burger, M (Marius)				Opponent Temmers, SM (Shaun)
3	5	Tournament Cape Winelands Schools Closed 2019				Tournament Stellenberg Youth Chess Championship 2019
		date 2019-03-16	rnd 4	type Standard	result 1	date 2019-05-01	rnd 1	type Standard	result 1
		Opponent Adonis, D (Dylan)				Opponent Donaldson, EE (Erin Emma)

#	Games	Start				End
1	8	Tournament Cape Winelands Schools Trials 1 2018				Tournament Stellenbosch Primary 2018
		date 2018-03-03	rnd 4	type Rapid	result 1	date 2018-09-15	rnd 5	type Rapid	result 1
		Opponent Saoud, J (Jassem)				Opponent Sterley, B (Boaz)
2	4	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Cape Winelands Top Schools 2025
		date 2024-06-08	rnd 5	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Van De Vyver, W (Wian)				Opponent Starke, J (Jesi-Jade)
3	4	Tournament CW Top Schools 2023				Tournament Western Cape Closed Championship 2023
		date 2023-08-26	rnd 3	type Rapid	result 1	date 2023-09-23	rnd 1	type Rapid	result 1
		Opponent Grobbelaar, A (Altus)				Opponent Sihamba, S (Somila)

#	Games	Start				End
1	2	Tournament Paul Roos Blitz 2019				Tournament Paul Roos Blitz 2019
		date 2019-02-23	rnd 3	type Blitz	result 1	date 2019-02-23	rnd 4	type Blitz	result 1
		Opponent Sinzumusi, A (Ahmed)				Opponent Phillips, JA (Jethro)
2	1	Tournament Paul Roos Blitz 2019				Tournament Paul Roos Blitz 2019
		date 2019-02-23	rnd 9	type Blitz	result 1	date 2019-02-23	rnd 9	type Blitz	result 1
		Opponent Madolo, S (Siyolise)				Opponent Madolo, S (Siyolise)
3	1	Tournament Paul Roos Blitz 2019				Tournament Paul Roos Blitz 2019
		date 2019-02-23	rnd 7	type Blitz	result 1	date 2019-02-23	rnd 7	type Blitz	result 1
		Opponent Abrahams, CJ (Chad)				Opponent Abrahams, CJ (Chad)

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	De Wet ,M (Malcolm)	4	3	212.5	3	2	141.7	1	1	425	0	0	0
1	De Wet ,M (Malcolm)	4	1139	1351.5	3	1067.5	1280.7	1	1236.2	1564	0	0	0
2	Saoud ,J (Jassem)	4	2	0	2	0	-425	2	2	425	0	0	0
2	Saoud ,J (Jassem)	4	815.2	815.2	2	892.7	390.2	2	725.8	1240.2	0	0	0
3	Adonis ,D (Dylan)	3	2.5	283.3	2	2	425	1	0.5	0	0	0	0
3	Adonis ,D (Dylan)	3	901.3	1184.6	2	684.6	1326.3	1	1019.8	901.3	0	0	0
4	Jansen ,V (Verron)	3	1.5	0	2	0.5	-212.5	1	1	425	0	0	0
4	Jansen ,V (Verron)	3	692.2	692.2	2	621.2	479.7	1	662	1117.2	0	0	0
5	Willis ,C (Cronan)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Willis ,C (Cronan)	2	1367.8	942.8	2	1344.6	942.8	0	0	0	0	0	0
6	Jeppie ,R (Riaad)	2	2	425	2	2	425	0	0	0	0	0	0
6	Jeppie ,R (Riaad)	2	1275.1	1700.1	2	1232.5	1700.1	0	0	0	0	0	0
7	De Villiers ,D (Dawid)	2	1	0	2	1	0	0	0	0	0	0	0
7	De Villiers ,D (Dawid)	2	1390.9	1390.9	2	1366.1	1390.9	0	0	0	0	0	0
8	Bester ,C (Christoff)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Bester ,C (Christoff)	2	1248.5	1036	2	1207.2	1036	0	0	0	0	0	0
9	Smith ,K (Kayden)	2	1	0	2	1	0	0	0	0	0	0	0
9	Smith ,K (Kayden)	2	1211.3	1211.3	2	1220.1	1211.3	0	0	0	0	0	0
10	De Lange ,R (Rhailihn)	2	1	0	2	1	0	0	0	0	0	0	0
10	De Lange ,R (Rhailihn)	2	1342.6	1342.6	2	1332.3	1342.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Vos, ES (Eustace Steyn)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms