Chess South Africa Ratings Database

Surname or Chess SA id..

PLAYER TOURNAMENT DETAILS

Joel Jacobs

1150146349
Nelson Mandela Bay (ENM)

Tournament details

Tour Id	20253695
Group Id	20253692
Name	2025 Mzansi Inter Provincial Team Championships
Section	U12 Combined
Rounds	6
Format	Team
Type	Standard
Start	2025-12-15
End	2025-12-17
Submitted	2025-12-17
Rated	2025-12-20
Submit age weight	1
Host	Nelson Mandela Bay (ENM)
Total time	60
Time weight	0.83
Official results	Official results

General

Games	6
Score	4.5
Percent	75
Dp	212.5
Aor	1452.7
Perform	1665.2
Penalties	0
Wins	4
Draws	1
Losses	1
White	4
Black	2
White wins	2
Black wins	2
Default wins	0
Default losses	0
Byes	0
Half byes	0
Rank	86
Final Pos	44
Share Pos	33
Count for rating	Yes

Analysis (Main)

Rating	1456.7
K-factor	20
Score	4.5
Expected score	3.11
Score - Expected score	1.39
Rating +/-	23.1

Analysis (Type)

Rating	1469.1
K-factor	20
Score	4.5
Expected score	3.07
Score - Expected score	1.43
Rating +/-	28.6

Opponents

Round	Date	Opponent	Fed	Title	Main	Type	Col	Res	Main			Type			Cfr
Round	Date	Opponent	Fed	Title	Main	Type	Col	Res	We	Swe	+/-	We	Swe	+/-	Cfr
1	2025-12-15	Pretorius, S (Sarel)	GTP		1694.2	1692.3	W	0.5	0.27	0.23	3.8	0.28	0.22	4.4	Yes
2	2025-12-15	Mathew, D (Deon)	MEN		1346.1	1367.7	B	1	0.59	0.41	6.8	0.58	0.42	8.4	Yes
3	2025-12-16	Makhoba, Z (Zipho)	KIK		1408.2	1477.7	W	1	0.6	0.4	6.6	0.53	0.47	9.4	Yes
4	2025-12-16	Hawken, J (Jamie)	LCP		1475.3	1520.2	W	0	0.52	-0.52	-8.6	0.48	-0.48	-9.6	Yes
5	2025-12-16	Mqakelana, I (Iminathi)	FMB		1231.6	1241.4	B	1	0.72	0.28	4.6	0.72	0.28	5.6	Yes
6	2025-12-17	Marais, A (Alexander)	WCT		1560.7	1524.3	W	1	0.42	0.58	9.6	0.48	0.52	10.4	Yes