Chess South Africa Ratings Database

Surname or Chess SA id..

PLAYER TOURNAMENT DETAILS

Byron De Koker

1120331872
Cape Town (WCT)

Tournament details

Tour Id	20260294
Group Id	20260286
Name	District Central Schools Chess Individual Trials 2026
Section	U15 Open
Rounds	6
Format	Swiss
Type	Standard
Start	2026-02-07
End	2026-02-07
Submitted	2026-02-12
Rated	2026-02-17
Submit age weight	0.717
Host	Cape Town (WCT)
Total time	60
Time weight	0.83
Official results	Official results

General

Games	6
Score	3
Percent	50
Dp	0
Aor	1252.2
Perform	1252.2
Penalties	0
Wins	3
Draws	0
Losses	3
White	3
Black	3
White wins	2
Black wins	1
Default wins	0
Default losses	0
Byes	0
Half byes	0
Rank	21
Final Pos	12
Share Pos	12
Count for rating	Yes

Analysis (Main)

Rating	1200
K-factor	20
Score	3
Expected score	2.64
Score - Expected score	0.36
Rating +/-	4.3

Analysis (Type)

Rating	1200
K-factor	20
Score	3
Expected score	2.64
Score - Expected score	0.36
Rating +/-	5.2

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	2026-02-07	Sessions, D (David)	WCT		1284.1	1288.4	W	1	0.44	0.56	6.7	0.44	0.56	8	Yes
2	2026-02-07	Katsidzira, N (Nathaniel)	WCT		1404.4	1402.1	B	0	0.22	-0.22	-3.7	0.22	-0.22	-4.4	Yes
3	2026-02-07	Mlindi, A (Ande)	WCT		1214.2	1216.5	W	0	0.53	-0.53	-8.8	0.52	-0.52	-10.4	Yes
4	2026-02-07	Evans, A (Andrew)	NCF		1188	1160.3	B	1	0.47	0.53	6.3	0.5	0.5	7.2	Yes
5	2026-02-07	Davids, A (Aadam)	WCT		1091.7	1134.1	W	1	0.67	0.33	3.9	0.62	0.38	5.4	Yes
6	2026-02-07	Issel, Y (Yaeesh)	WCT		1330.7	1305.4	B	0	0.31	-0.31	-5.1	0.34	-0.34	-6.8	Yes