His achievements include:
- Top 2 Written in National MathCounts in 7th grade and 8th grade, in which he scored a 44 and a perfect score of 46.
- Two-time perfect scorer on the AHSME.
- Perfect score on the AIME.
- Three-time invitee to the Mathematical Olympiad Summer Program.
Mr. Crawford currently teaches classes and is working on creating educational products for AoPS. He also monitors the forums and AoPSWiki. His first book, Introduction to Number Theory was published by AoPS in June, 2006.