Chess South Africa Ratings Database

PLAYER PAGE

Personal

Alexander, R (Rosco)

Chess SA id

1100315092

FIDE id

Date of birth

2010-09-09 (U18)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1204.7	1199.7	1194.6	1200
Raw rating	1204.7	1199.7	1185.2	1200
Weighted rating	1201.5	1199.6	1194.6	1200
Weighted performance	0	0	0	0
Floor	704.7	699.9	700	700
K-factor	36	40	36	36
Min/Max rating change allowed	164.7	165.9	169.4	165.8
Highest rating	1204.7 2025-09-01	1199.9 2025-02-13	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1204.7 2025-09-01	1199.9 2025-02-13	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1200.1 2025-09-01	1199.9 2025-02-13	1200 2025-03-01	1200 2025-03-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.9	0
New rating	1204.7	1199.7	1193.6	1200
Analysis
Rating	1204.7	1199.7	1194.6	1200
Raw rating	1204.7	1199.7	1185.2	1200
Weighted rating	1201.5	1199.6	1194.6
Weighted performance	0	0	0
K-factor	36	40	36	36
Floor	704.7	699.9	700	700
Max/Min rating change allowed	164.7	165.9	169.4	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	1204.7	1199.7	1185.2	1200
New weighted rating	1201.8	1199.6	1193.6	1200
New weighted performance	0	0	0	0
Temp new rating	1204.7	1199.7	1193.6	1200
Temp new rating +/-	0	0	-0.9	0
Final new rating +/-	0	0	-0.9	0
New rating	1204.7	1199.7	1193.6	1200
New K-factor	36	40	36	36
New floor	704.7	699.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	14	10	4
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	14	10	4

Games since
	Main 14	Standard 10		Rapid 4		Blitz 0
Gender	Male
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
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	14	4.5	32.14	-151.8	1312.4	1160.6
Standard	10	3	30	-170	1290.3	1120.3
Rapid	4	1.5	37.5	-106.2	1367.4	1261.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	14	4.5	32.14	-151.8	1312.4	1160.6
Standard	10	3	30	-170	1290.3	1120.3
Rapid	4	1.5	37.5	-106.2	1367.4	1261.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1204.7	1199.7	1185.2	1200
2025-11-30	1204.7	1199.7	1185.2	1200
2025-11-01	1204.7	1199.7	1185.2	1200
2025-09-30	1204.7	1199.7	1185.2	1200
2025-09-01	1204.7	1199.7	1185.2	1200
2025-08-01	1199.7	1199.7	1200	1200
2025-07-01	1199.7	1199.7	1200	1200
2025-06-01	1199.7	1199.7	1200	1200
2025-05-01	1199.6	1199.5	1200	1200
2025-04-01	1197.9	1197.4	1200	1200
2025-03-01	1199.2	1198.9	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200

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	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U15 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 0.5
		Opponent Nyakale, P (Paballo)				Opponent Scholtz, T (Triston)
2	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 4	type Standard	result 1
		Opponent Fredericks, J (Jadrian)				Opponent Hawker, WL (Warren Lee)
3	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Conradie, A (Andre)				Opponent Conradie, A (Andre)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 4	type Standard	result 1
		Opponent Fredericks, J (Jadrian)				Opponent Hawker, WL (Warren Lee)
2	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Conradie, A (Andre)				Opponent Conradie, A (Andre)

#	Games	Start				End
1	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 0.5
		Opponent Nyakale, P (Paballo)				Opponent Scholtz, T (Triston)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 4	type Standard	result 1
		Opponent Fredericks, J (Jadrian)				Opponent Hawker, WL (Warren Lee)
2	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Nyakale, P (Paballo)				Opponent Nyakale, P (Paballo)
3	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Conradie, A (Andre)				Opponent Conradie, A (Andre)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 4	type Standard	result 1
		Opponent Fredericks, J (Jadrian)				Opponent Hawker, WL (Warren Lee)
2	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Conradie, A (Andre)				Opponent Conradie, A (Andre)

#	Games	Start				End
1	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Nyakale, P (Paballo)				Opponent Nyakale, P (Paballo)

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	Le Roux ,J (Joss)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Le Roux ,J (Joss)	1	1215.2	790.2	1	1225.9	790.2	0	0	0	0	0	0
2	Maseti ,E (Endinako)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Maseti ,E (Endinako)	1	1370.8	945.8	1	1351.7	945.8	0	0	0	0	0	0
3	Ferreira ,P (Phillipe)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Ferreira ,P (Phillipe)	1	1235.1	810.1	1	1221.6	810.1	0	0	0	0	0	0
4	Daliwe ,I (Ivana)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Daliwe ,I (Ivana)	1	1180.8	755.8	1	1169	755.8	0	0	0	0	0	0
5	Fredericks ,J (Jadrian)	1	1	425	1	1	425	0	0	0	0	0	0
5	Fredericks ,J (Jadrian)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Titus ,J (Jordyn)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Titus ,J (Jordyn)	1	1323.2	898.2	1	1291.5	898.2	0	0	0	0	0	0
7	Conradie ,A (Andre)	1	1	425	1	1	425	0	0	0	0	0	0
7	Conradie ,A (Andre)	1	1248.9	1673.9	1	1256.7	1673.9	0	0	0	0	0	0
8	Oosthuizen ,E (Ethan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Oosthuizen ,E (Ethan)	1	1677.1	1252.1	1	1679.1	1252.1	0	0	0	0	0	0
9	Hawker ,WL (Warren Lee)	1	1	425	1	1	425	0	0	0	0	0	0
9	Hawker ,WL (Warren Lee)	1	1222.5	1647.5	1	1217.8	1647.5	0	0	0	0	0	0
10	Barnard ,B (Benjamin)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Barnard ,B (Benjamin)	1	1230.3	805.3	1	1233.8	805.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Alexander, R (Rosco)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms