|Date of birth||16 April 1984|
|Place of birth||Warsaw, Poland|
|Height||1.87 m (6 ft 2 in)|
|2006||→ Egaleo (loan)||8||(0)|
|2009||→ Vitória Setúbal (loan)||10||(0)|
|2011–2012||→ Roda (loan)||25||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 10:20, 15 May 2014 (UTC).
† Appearances (Goals).
Born in Warsaw, Kieszek began his professional career at local Polonia Warsaw in the Ekstraklasa. In January 2006 he was loaned to Greece's Egaleo FC, where he remained until the end of the year; he returned to Polonia, which had been relegated to the second level in his absence, for 2006–07, playing only a few games before getting injured and missing the rest of the season.
Kieszek signed with S.C. Braga in Portugal in June 2007, on a free transfer. He made his club debut on 21 February 2008 in a 0–1 home loss against SV Werder Bremen for the campaign's UEFA Cup, first appearing in the league three days later against S.L. Benfica (1–1).
In January 2009 Kieszek joined Vitória Futebol Clube, on loan until the end of the season, being relatively used during his spell as the Sadinos managed to retain their top flight status. Upon his return to Braga, he was a backup to Portuguese international Eduardo.
In July 2010, after another uneventful 2009–10 with Braga – the club finished second, but he only appeared in three matches in the campaign's Portuguese League Cup, conceding four goals – Kieszek signed a four-year contract with F.C. Porto, with Braga retaining 50% of his economic rights. In August of the following year, after only four official appearances, he was loaned to Dutch side Roda JC.
|Vitória Setúbal||2008–09||Primeira Liga||10||0||0||0||—||10||0|
|Vitória Setúbal||2012–13||Primeira Liga||27||0||4||0||—||31||0|
- Appearances in UEFA Europa League
- "Porto recruit goalkeeper Kieszek". UEFA.com. 2 July 2010. Retrieved 2 July 2010.
- Relatório e contas anuais (Report and yearly finance); Braga's official website (Portuguese)
- Keeper Kieszek joins Roda; FIFA.com, 31 August 2011
- "Kieszek bramkarzem Estorilu Praia" [Kieszek joins Estoril Praia] (in Polish). Sport. 16 June 2014. Retrieved 17 June 2014.
- "Kieszek". ForaDeJogo. Retrieved 23 April 2014.
- "P. Kieszek". Soccerway. Retrieved 4 July 2014.