News
Lobby
Tournaments
Puzzles
Masterclasses
Ratings
Clubs
Shop
Register for free
Active games
All my games
Start new game and compete for FIDE Online and Worldchess rating, or invite a friend and train with no hassle at all!
New game
Notifications
No notifications
0
Sign in
Register
SK
Stolk, Koos
1959, NL
Standard
1816.0
Career Peak 1924 (2024)
Official 1816
76 days ago
Rapid
—
—
Blitz
—
—
Recent results
Date
Tournament
Change
2026-04-01
Dutch Team Competition - klasse 5 Round 5
FIDE
↓13
2026-03-01
Dutch Team Competition - klasse 5 Round 6
FIDE
↓1.6
2026-01-01
Dutch Team Competition - klasse 5 Round 4
FIDE
↑13.6
Dutch Team Competition - klasse 5 Round 5
FIDE
↓13
2026-04-01
Dutch Team Competition - klasse 5 Round 6
FIDE
↓1.6
2026-03-01
Dutch Team Competition - klasse 5 Round 4
FIDE
↑13.6
2026-01-01