Chess South Africa Ratings Database

PLAYER PAGE

Personal

Michalakis, S (Stefanos)

Chess SA id

110089871

FIDE id

Date of birth

2010-07-22 (U16)

Gender

Male

Region

Lejweleputswa (FLW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1330.6

Item	Main	Standard	Rapid	Blitz
Rating	1403.5	1397.4	1200	1050.4
Raw rating	1396.1	1392.5	1200	1050.4
Weighted rating	1403.5	1397.4	1200	1050.4
Weighted performance	1305.8	1304.7	0	0
Floor	939.7	936.7	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	125.4	126	165.8	205.2
Highest rating	1454.7 2019-06-01	1451.7 2019-06-01	1200 2018-10-01	1200 2024-11-01
Highest raw rating	1439.7 2019-07-01	1436.7 2019-07-01	1200 2024-02-01	1200 2018-01-01
Highest weighted rating	1439.7 2024-09-01	1436.7 2024-09-01	1200 2018-10-01	1200 2024-11-01
Highest weighted performance	1454.7 2019-06-01	1451.7 2019-06-01	1200 2024-02-01	1200 2024-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.7	-0.4	0	0
New rating	1402.9	1397	1200	1050.4
Analysis
Rating	1403.5	1397.4	1200	1050.4
Raw rating	1396.1	1392.5	1200	1050.4
Weighted rating	1403.5	1397.4	1200
Weighted performance	1305.8	1304.7	0
K-factor	32	32	36	36
Floor	939.7	936.7	700	700
Max/Min rating change allowed	125.4	126	165.8	205.2
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	1396.1	1392.5	1200	1050.4
New weighted rating	1402.9	1397	1200	1050.4
New weighted performance	1297.7	1296.6	0	0
Temp new rating	1402.9	1397	1200	1050.4
Temp new rating +/-	-0.7	-0.4	0	0
Final new rating +/-	-0.7	-0.4	0	0
New rating	1402.9	1397	1200	1050.4
New K-factor	32	32	36	36
New floor	939.7	936.7	700	700

Item	Main	Standard	Blitz
	0	0	0
	19	19	0
	17	17	0
	20	20	0
	5	5	0
	0	0	0
History	164	158	6

Games since
	Main 36	Standard 36		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Lejweleputswa (FLW)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	2119		23		9
Male	1724		22		8
U16	316		3		2
U16 Male	243		3		2
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	19	11	57.89	67.1	1332.6	1399.7
Standard	19	11	57.89	67.1	1332.6	1399.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	144	93.5	64.93	126.9	1153.1	1280
Standard	138	92.5	67.03	144.7	1166.1	1310.8
Rapid	0	0	0	0	0	0
Blitz	6	1	16.67	-283.3	854.5	571.2

Date	Main	Standard	Rapid	Blitz
2025-11-01	1396.1	1392.5	1200	1050.4
2025-09-30	1396.1	1392.5	1200	1050.4
2025-09-01	1396.1	1392.5	1200	1050.4
2025-08-01	1413.1	1410.2	1200	1050.4
2025-07-01	1413.1	1410.2	1200	1050.4
2025-06-01	1413.1	1410.2	1200	1050.4
2025-05-01	1410.8	1406.9	1200	1050.4
2025-04-01	1403.6	1394.6	1200	1050.4
2025-03-01	1403.6	1394.6	1200	1050.4
2025-02-01	1402	1393	1200	1050.4
2025-01-01	1377.5	1367.4	1200	1050.4
2024-12-01	1401.8	1393.6	1200	1050.4
2024-11-01	1401.8	1393.6	1200	1050.4
2024-10-01	1401.8	1393.6	1200	1050.4
2024-09-01	1408.5	1400	1200	1050.4
2024-08-01	1408.5	1400	1200	1050.4
2024-07-01	1408.5	1400	1200	1050.4
2024-09-01	1408.5	1400	1200	1050.4
2024-05-01	1408.5	1400	1200	1050.4
2024-04-01	1407.4	1397.8	1200	1050.4
2024-03-01	1407.4	1397.8	1200	1050.4
2024-02-01	1407.4	1397.8	1200	1050.4
2024-01-01	1407.4	1397.8	1200	1050.4
2023-12-01	1407.4	1397.8	1200	1050.4

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	Free State Closed 2025 (U16 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Spartan Bishops Championships Elite 2025 (U16)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	5	2.5	Yes	Analysis
3	Lejweleputswa Chess 4th Qualifying Swiss Open Tournament 2025 (A)	2025-04-12	2025-04-12	Standard	Lejweleputswa (FLW)	5	4	2	Yes	Analysis
4	Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025 (U16)	2025-03-29	2025-03-29	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Free State Closed 2025 (U16 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Spartan Bishops Championships Elite 2025 (U16)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	5	2.5	Yes	Analysis
3	Lejweleputswa Chess 4th Qualifying Swiss Open Tournament 2025 (A)	2025-04-12	2025-04-12	Standard	Lejweleputswa (FLW)	5	4	2	Yes	Analysis
4	Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025 (U16)	2025-03-29	2025-03-29	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis
5	Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3	Yes	Analysis
6	Lejweleputswa Closed Chess Championships 2024 (U16)	2024-09-21	2024-09-21	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis
7	Lejweleputswa 3rd Qualifieng Tournament 2024 (U16)	2024-04-20	2024-04-20	Standard	Lejweleputswa (FLW)	5	5	4	Yes	Analysis
8	Inter Regional Chess Championship 2023 (U14)	2023-05-19	2023-05-20	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
9	Lejweleputswa 4th Qualifying Tournament 2023 (U14)	2023-05-26	2023-05-26	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis
10	Lejweleputswa 3rd Qualifieng Tournament 2023 (D)	2023-04-21	2023-04-21	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis
11	Lejweleputswa 2nd Qualifieng Tournament 2023 (D)	2023-03-25	2023-03-25	Standard	Lejweleputswa (FLW)	5	5	4.5	Yes	Analysis
12	Kiriakos Michalakis Chess Festival 2022 (B)	2022-09-24	2022-09-24	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
13	2019 South African Junior Team Championships (U10C)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
14	2019 Kiri Michalakis (B)	2019-09-24	2019-09-24	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
15	Lejweleputswa 7th Qualifying Swiss Open Tournament 2019 (U10)	2019-06-15	2019-06-15	Standard	Lejweleputswa (FLW)	5	5	5	Yes	Analysis
16	Inter Regional Chess Championship 2019 (U10)	2019-05-10	2019-05-11	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
17	Lejweleputswa 6th Qualifying Swiss Open Tournament 2019 (E)	2019-05-25	2019-05-25	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis
18	Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (E)	2019-03-16	2019-03-16	Standard	Lejweleputswa (FLW)	5	5	4	Yes	Analysis
19	Lejweleputswa 2nd Qualifying Swiss Open Tournament 2019 (E)	2019-01-26	2019-01-26	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis
20	South African Junior Team Championships 2018 (U10C)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	2	Yes	Analysis
21	Lejweleputswa 1st Qualifier 2019 (U10)	2018-10-27	2018-10-27	Standard	Lejweleputswa (FLW)	5	5	5	Yes	Analysis
22	Inter Regional 2018 (U10 Team)	2018-05-04	2018-05-05	Standard	Frances Baard (NCF)	5	3	1	Yes	Analysis
23	Lejweleputswa 5th Qualifying Swiss Open Tournament 2018 (U10)	2018-04-21	2018-04-21	Standard	Lejweleputswa (FLW)	5	5	5	Yes	Analysis
24	Lejweleputswa 4th Qualifying Swiss Open Tournament 2018 (E)	2018-03-10	2018-03-10	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis
25	Lejweleputswa 3rd Qualifying Swiss Open Tournament 2018 (U10)	2018-02-24	2018-02-24	Standard	Lejweleputswa (FLW)	5	5	4.5	Yes	Analysis
26	Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (D)	2018-01-27	2018-01-27	Standard	Lejweleputswa (FLW)	5	5	1	Yes	Analysis
27	South African Junior Blitz 2017 Championships (B)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	6	1	Yes	Analysis
28	South African Junior Team Championships 2017 (U8B+U8 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	5	Yes	Analysis

#	Games	Start				End
1	12	Tournament Kiriakos Michalakis Chess Festival 2022				Tournament Lejweleputswa 3rd Qualifieng Tournament 2023
		date 2022-09-24	rnd 3	type Standard	result 1	date 2023-04-21	rnd 4	type Standard	result 1
		Opponent Moepeng, B (Boikanyo)				Opponent Tshemese, M (Mpumelelo)
2	8	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament 2019 Kiri Michalakis
		date 2019-05-25	rnd 5	type Standard	result 1	date 2019-09-24	rnd 2	type Standard	result 1
		Opponent Molibedi, M (Mpho)				Opponent Shen Yu, F (Frank)
3	7	Tournament Inter Regional Chess Championship 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-10	rnd 2	type Standard	result 1	date 2019-05-25	rnd 3	type Standard	result 0.5
		Opponent Cameron, LC (Levi Connor)				Opponent Seutloali, K (Kananelo)

#	Games	Start				End
1	12	Tournament Kiriakos Michalakis Chess Festival 2022				Tournament Lejweleputswa 3rd Qualifieng Tournament 2023
		date 2022-09-24	rnd 3	type Standard	result 1	date 2023-04-21	rnd 4	type Standard	result 1
		Opponent Moepeng, B (Boikanyo)				Opponent Tshemese, M (Mpumelelo)
2	8	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament 2019 Kiri Michalakis
		date 2019-05-25	rnd 5	type Standard	result 1	date 2019-09-24	rnd 2	type Standard	result 1
		Opponent Molibedi, M (Mpho)				Opponent Shen Yu, F (Frank)
3	7	Tournament Inter Regional Chess Championship 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-10	rnd 2	type Standard	result 1	date 2019-05-25	rnd 3	type Standard	result 0.5
		Opponent Cameron, LC (Levi Connor)				Opponent Seutloali, K (Kananelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 5	type Blitz	result 1	date 2018-01-07	rnd 5	type Blitz	result 1
		Opponent Louw, N (Nova)				Opponent Louw, N (Nova)

#	Games	Start				End
1	8	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament 2019 Kiri Michalakis
		date 2019-05-25	rnd 5	type Standard	result 1	date 2019-09-24	rnd 2	type Standard	result 1
		Opponent Molibedi, M (Mpho)				Opponent Shen Yu, F (Frank)
2	6	Tournament Kiriakos Michalakis Chess Festival 2022				Tournament Lejweleputswa 2nd Qualifieng Tournament 2023
		date 2022-09-24	rnd 3	type Standard	result 1	date 2023-03-25	rnd 3	type Standard	result 1
		Opponent Moepeng, B (Boikanyo)				Opponent Molongoana, P (Peo)
3	6	Tournament Inter Regional Chess Championship 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-10	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Cameron, LC (Levi Connor)				Opponent Hefer, A (Alexis)

#	Games	Start				End
1	8	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament 2019 Kiri Michalakis
		date 2019-05-25	rnd 5	type Standard	result 1	date 2019-09-24	rnd 2	type Standard	result 1
		Opponent Molibedi, M (Mpho)				Opponent Shen Yu, F (Frank)
2	6	Tournament Kiriakos Michalakis Chess Festival 2022				Tournament Lejweleputswa 2nd Qualifieng Tournament 2023
		date 2022-09-24	rnd 3	type Standard	result 1	date 2023-03-25	rnd 3	type Standard	result 1
		Opponent Moepeng, B (Boikanyo)				Opponent Molongoana, P (Peo)
3	6	Tournament Inter Regional Chess Championship 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-10	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Cameron, LC (Levi Connor)				Opponent Hefer, A (Alexis)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 5	type Blitz	result 1	date 2018-01-07	rnd 5	type Blitz	result 1
		Opponent Louw, N (Nova)				Opponent Louw, N (Nova)

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	Van Brakel ,J (Jandre)	4	4	425	4	4	425	0	0	0	0	0	0
1	Van Brakel ,J (Jandre)	4	1199	1624	4	1202.8	1624	0	0	0	0	0	0
2	Fourie ,K (Kyle)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
2	Fourie ,K (Kyle)	4	1300.1	1406.3	4	1298.5	1406.3	0	0	0	0	0	0
3	Molongoana ,P (Peo)	4	2	0	4	2	0	0	0	0	0	0	0
3	Molongoana ,P (Peo)	4	1363.5	1363.5	4	1355.1	1363.5	0	0	0	0	0	0
4	Coetzee ,D (Dian)	3	3	425	3	3	425	0	0	0	0	0	0
4	Coetzee ,D (Dian)	3	1110.4	1535.4	3	1096.1	1535.4	0	0	0	0	0	0
5	Michalakis ,S (Stylianos)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
5	Michalakis ,S (Stylianos)	3	1120.6	1403.9	3	1122.8	1403.9	0	0	0	0	0	0
6	Van Tonder ,J (Jordan)	3	3	425	3	3	425	0	0	0	0	0	0
6	Van Tonder ,J (Jordan)	3	1170	1595	3	1163.5	1595	0	0	0	0	0	0
7	Jacobs ,M (Marli)	2	2	425	2	2	425	0	0	0	0	0	0
7	Jacobs ,M (Marli)	2	909.9	1334.9	2	911.6	1334.9	0	0	0	0	0	0
8	Setai ,T (Teboho)	2	2	425	2	2	425	0	0	0	0	0	0
8	Setai ,T (Teboho)	2	1214.7	1639.7	2	1205.8	1639.7	0	0	0	0	0	0
9	Seutloali ,K (Kananelo)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Seutloali ,K (Kananelo)	2	1117	1329.5	2	1103.6	1329.5	0	0	0	0	0	0
10	Cornelissen ,T (Tinus)	2	1	0	2	1	0	0	0	0	0	0	0
10	Cornelissen ,T (Tinus)	2	1204.9	1204.9	2	1204.8	1204.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Michalakis, S (Stefanos)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms