International Master

Alexander Costello

12

Games

5

Wins

3

Draws

4

Losses

54%

Score

Peak rating—

Latest rating—

First seenApr 8, 2022

Last seenJun 18, 2023

Recent games

Date	White	Result	Black	Event	Opening
Jun 18, 2023	Alexander Costello	1–0	Zoey Tang	Las Vegas National Open 2023	Sicilian Defense: Modern Variations, Main Line
Jun 17, 2023	Nico Chasin	1–0	Alexander Costello	Las Vegas National Open 2023	Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line
Jun 17, 2023	Alexander Costello	½–½	Mark Heimann	Las Vegas National Open 2023	Zukertort Opening
Jun 15, 2023	Tommy Wen	1–0	Alexander Costello	Las Vegas National Open 2023	Ruy Lopez: Closed, Keres Defense
Nov 23, 2022	Nikolas Theodorou	1–0	Alexander Costello	Round 1: Nikolas Theodorou - Alexander Costello	English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation
Apr 10, 2022	Alexander Costello	0–1	Advaith Karthik	Round 7: Alexander Costello - Advaith Karthik	Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
Apr 10, 2022	Nico Chasin	½–½	Alexander Costello	Round 6: Nico Chasin - Alexander Costello	Italian Game: Giuoco Piano
Apr 10, 2022	Alexander Costello	½–½	Harry Le	Round 5: Alexander Costello - Harry Le	English Opening: Anglo-Indian Defense, King's Knight Variation
Apr 9, 2022	Andrew Jiang	0–1	Alexander Costello	Round 4: Andrew Jiang - Alexander Costello	Italian Game: Classical Variation, Giuoco Pianissimo, with a6
Apr 9, 2022	Alexander Costello	1–0	Elijah Platnick	Round 3: Alexander Costello - Elijah Platnick	Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred
Apr 9, 2022	Alexander Costello	1–0	Caleb Meyer-Chabris	Round 1: Alexander Costello - Caleb Meyer-Chabris	Zukertort Opening
Apr 8, 2022	Eric Wu	0–1	Alexander Costello	Round 2: Eric Wu - Alexander Costello	Sicilian Defense: Taimanov Variation