Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, W (Wian)

Chess SA id

1150326542

FIDE id

Date of birth

2015-03-17 (U12)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1225.2	1232.2	1198.4	1200
Raw rating	1225.2	1232.2	1189.6	1200
Weighted rating	1209.5	1211.8	1198.4	1200
Weighted performance	0	0	0	0
Floor	726.2	732.2	699	700
K-factor	36	36	40	40
Min/Max rating change allowed	160	158.4	168.3	165.8
Highest rating	1226.2 2025-09-01	1232.2 2025-09-01	1199.2 2025-11-30	1199 2025-08-26
Highest raw rating	1226.2 2025-09-01	1232.2 2025-09-01	1199 2025-08-26	1199 2025-08-26
Highest weighted rating	1207.8 2025-11-30	1202.6 2025-09-01	1199.2 2025-11-30	0 2025-08-26
Highest weighted performance	0 2025-08-26	0 2025-08-26	0 2025-08-26	0 2025-08-26

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.8	0
New rating	1225.2	1232.2	1197.6	1200
Analysis
Rating	1225.2	1232.2	1198.4	1200
Raw rating	1225.2	1232.2	1189.6	1200
Weighted rating	1209.5	1211.8	1198.4
Weighted performance	0	0	0
K-factor	36	36	40	40
Floor	726.2	732.2	699	700
Max/Min rating change allowed	160	158.4	168.3	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	1225.2	1232.2	1189.6	1200
New weighted rating	1211	1213.9	1197.6	1200
New weighted performance	0	0	0	0
Temp new rating	1225.2	1232.2	1197.6	1200
Temp new rating +/-	0	0	-0.8	0
Final new rating +/-	0	0	-0.8	0
New rating	1225.2	1232.2	1197.6	1200
New K-factor	36	36	40	36
New floor	726.2	732.2	699	700

Item	Main	Standard	Rapid
	0	0	0
	10	5	5
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	10	5	5

Games since
	Main 10	Standard 5		Rapid 5		Blitz 0
Gender	M
Age group	U12
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-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	10	5	50	0	1281.6	1281.6
Standard	5	3	60	85	1256.9	1341.9
Rapid	5	2	40	-85	1306.2	1221.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	5	50	0	1281.6	1281.6
Standard	5	3	60	85	1256.9	1341.9
Rapid	5	2	40	-85	1306.2	1221.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1225.2	1232.2	1189.6	1200
2025-11-30	1225.2	1232.2	1189.6	1200
2025-11-01	1226.2	1232.2	1200	1200
2025-09-30	1226.2	1232.2	1200	1200
2025-09-01	1226.2	1232.2	1200	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	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	Laerskool George Suid 2025 (Ope)	2025-10-25	2025-10-25	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
2	Eden Top Schools 2025 (U11 Open)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	5	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Adriaanse, S (Shakiel)				Opponent Van Heerden, C (Christiaan)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Villiers, A (Azalea)				Opponent De Villiers, A (Azalea)

#	Games	Start				End
1	2	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Adriaanse, S (Shakiel)				Opponent Van Heerden, C (Christiaan)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Villiers, A (Azalea)				Opponent De Villiers, A (Azalea)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Adriaanse, S (Shakiel)				Opponent Van Heerden, C (Christiaan)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Villiers, A (Azalea)				Opponent De Villiers, A (Azalea)

#	Games	Start				End
1	2	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Adriaanse, S (Shakiel)				Opponent Van Heerden, C (Christiaan)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 5	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Villiers, A (Azalea)				Opponent De Villiers, A (Azalea)

No games found.

#	Games	Start				End

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	James ,S (Sarah-Jane)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	James ,S (Sarah-Jane)	1	1545.3	1120.3	1	1571.4	1120.3	0	0	0	0	0	0
2	De Lange ,Z (Zander)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	De Lange ,Z (Zander)	1	1199.9	774.9	1	1199.9	774.9	0	0	0	0	0	0
3	De Villiers ,A (Azalea)	1	1	425	1	1	425	0	0	0	0	0	0
3	De Villiers ,A (Azalea)	1	1137.5	1562.5	1	1126.3	1562.5	0	0	0	0	0	0
4	Van Heerden ,C (Christiaan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Heerden ,C (Christiaan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Adriaanse ,S (Shakiel)	1	1	425	1	1	425	0	0	0	0	0	0
5	Adriaanse ,S (Shakiel)	1	1201.9	1626.9	1	1201.1	1626.9	0	0	0	0	0	0
6	Brewis ,S (Sienna)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Brewis ,S (Sienna)	1	1491.4	1066.4	0	0	0	1	1329.2	1066.4	0	0	0
7	Michaels ,K (Kyle)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Michaels ,K (Kyle)	1	1395.9	970.9	0	0	0	1	1272.8	970.9	0	0	0
8	Leshawa ,E (Emzeo)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Leshawa ,E (Emzeo)	1	1249.3	824.3	0	0	0	1	1231	824.3	0	0	0
9	October ,S (Shanicka)	1	1	425	0	0	0	1	1	425	0	0	0
9	October ,S (Shanicka)	1	1194.6	1619.6	0	0	0	1	1216.1	1619.6	0	0	0
10	Jafta ,Z (Zakeya)	1	1	425	0	0	0	1	1	425	0	0	0
10	Jafta ,Z (Zakeya)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Jacobs, W (Wian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms