|Full name||Adam Chadaj|
|Born||1 May 1984|
(Double Handed Backhand)
|Highest ranking||No. 202 (22 August 2005)|
|Highest ranking||No. 151 (25 July 2005)|
Chadaj was born in Warsaw and turned professional in 2001.
He represented the Poland Davis Cup team in a 2005 tie against Estonia in Gdynia and featured in two singles rubbers, for wins over Mait Künnap and Mikk Irdoja. Soon after he made his debut in an ATP Tour level tournament when he was a wild card entrant into the main draw of the 2005 Idea Prokom Open in Sopot. He won his first round match against Alessio di Mauro, then lost in the second round to José Acasuso. On the Challenger circuit in 2005 his wins included Julien Benneteau, Nicolas Mahut and Sam Querrey.
|1.||2004||Poznań, Poland||Clay||Stéphane Robert|| Tomáš Cibulec
|3–6, 6–1, 6–2|
|2.||2006||Telde, Spain||Clay||Michael Ryderstedt|| David Marrero
Daniel Muñoz de la Nava
|5–7, 6–3, 10–7|
- "ITF Tennis - Pro Circuit - Poznan Challenger - 02 August - 08 August 2004". International Tennis Federation. Retrieved 24 February 2016.
- "Eesti mängib Davise-sarjas Poolaga - Eesti Päevaleht". Eesti Päevaleht (in Estonian). 14 July 2005. Retrieved 24 February 2016. Cite has empty unknown parameter:
- "Davis Cup - Tie - Details". daviscup.com. Retrieved 24 February 2016.
- "Moya, Volandri upset at Idea Prokom Open". USA Today. 4 August 2005. Retrieved 24 February 2016.
- "ITF Tennis - Pro Circuit - Telde Challenger - 01 May - 06 May 2006". International Tennis Federation. Retrieved 24 February 2016.
- "ATP $579K Orange Prokom Open". The San Diego Union-Tribune. 1 August 2007. Archived from the original on 2016-03-04. Retrieved 24 February 2016.