or
Loading player profile…
FIDE ID 14300133 · born 1987 · last updated 5/12/2026
Standard
2177
Rapid
2167
Blitz
2270
Quick name search
Shortlist public Lichess and chess.com accounts for Klaasen via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
AI matching by sample game
Searching public databases for known games of Klaasen…
Have your own PGNs? You can also paste them below once this finishes; or use Quick name search above to skip this step.
Real tournament games of Calvin John Klaasen from public sources. Select a game to replay it on the board.
All games
+20 =17 -23 · score 48% · 60 games
As White
+11 =9 -10 · score 52% · 30 games
As Black
+9 =8 -13 · score 43% · 30 games
Roque Sola,Gisela(2085)
Klaasen,C(2187)0-1
Loading the game…
Select a game
As White
| Event | Games | Dates |
|---|---|---|
| Titled Tue 29th Jul Late | 11 | 2025-07-29 |
| Cape Gambit Inv 2025 | 7 | 2025-04-18 to 2025-04-21 |
| Cape Town Masters 2025 | 4 | 2025-01-06 to 2025-01-08 |
| Titled Tue 17th Dec Early | 8 | 2024-12-17 |
| ch-RSA 2024 | 11 | 2024-03-25 to 2024-04-02 |
| Cape Town Masters 2024 | 6 | 2024-01-04 to 2024-01-07 |
| Titled Tue 26th Dec Early | 6 | 2023-12-26 |
| Moja Open 2023 | 7 | 2023-09-30 to 2023-10-04 |
Prep report
Their repertoire vs yours
Once you have a candidate account, we cross-reference its opening tree against your imported games, surfacing the lines they play that you don’t know, the leaks in their repertoire you can punish, and the gaps in yours you’ll need to plug before the game.
Pick a candidate account above to unlock the report.
As Black
AI matching from found games
We already found 60 of Klaasen’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources: twic (60) - latest 7/29/2025
Helps match accounts whose display name is not written in Latin letters.
Costs 1 credit
Uses 1 credit. Results take a few minutes; the results page updates itself.