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FIDE ID 2099659 · born 2003 · last updated 5/12/2026
Standard
2259
Rapid
-
Blitz
2189
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Shortlist public Lichess and chess.com accounts for Costello 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 Costello…
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Real tournament games of Alexander Costello from public sources. Select a game to replay it on the board.
All games
+27 =7 -22 · score 54% · 56 games
As White
+14 =3 -11 · score 55% · 28 games
As Black
+13 =4 -11 · score 54% · 28 games
Argandona Riveiro,I(2333)
Costello,Alexander(2262)0-1
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As White
| Event | Games | Dates |
|---|---|---|
| Titled Tue 13th May Late | 9 | 2025-05-13 |
| Titled Tue 22nd Apr Late | 1 | 2025-04-22 |
| Titled Tue 15th Apr Late | 10 | 2025-04-15 |
| Titled Tue 25th Mar Late | 9 | 2025-03-25 |
| Titled Tue 11th Mar Late | 1 | 2025-03-11 |
| Titled Tue 4th Mar Late | 2 | 2025-03-04 |
| Titled Tue 25th Feb Late | 1 | 2025-02-25 |
| Titled Tue 18th Jun Early | 1 | 2024-06-18 |
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
| ch-Southern California | 7 | 2024-06-13 to 2024-06-16 |
| Titled Tue 11th Jun Late | 4 | 2024-06-11 |
AI matching from found games
We already found 56 of Costello’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources: twic (56) - latest 5/13/2025
Helps match accounts whose display name is not written in Latin letters.
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