|Date of birth||3 September 1985|
|Place of birth||Newham, England|
|Height||6 ft 2 in (1.88 m)|
|1997–2003||West Ham United|
|2003–2006||West Ham United||0||(0)|
|2005||→ Southend United (loan)||1||(0)|
|2005||→ Hereford United (loan)||11||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 14:38, 29 December 2011 (UTC).
As a youngster, Blewitt was associated with Norwich City, but joined West Ham United while still at school and came through their academy system. He played regularly for and captained the reserves, and was an unused substitute for the first team. In February 2005 Blewitt joined Football League Two club Southend United on loan to gain experience of first-team football. However, his debut in the Football League was also the only appearance he made in Southend's first team, as an 89th-minute substitute in a 3–0 win away to Cheltenham Town. Blewitt spent the first half of the 2005–06 season on loan at Conference club Hereford United where he made eleven appearances, and had a trial with Oxford United in February 2006. West Ham released Blewitt at the end of that season.
After a trial with Dagenham & Redbridge, Blewitt joined Billericay Town, where he spent two seasons before being released and joining Heybridge Swifts. His stay was brief: he left following a change of management, made one appearance for Enfield Town, then, in September 2008, joined Brentwood Town, where he won both Manager's and Players' Player of the Year awards for the 2008–09 season. After Brentwood dismissed manager Carl Griffiths at the start of the 2009–10 season, Blewitt moved to Aveley. He then re-signed for Brentwood in November 2009.
- "Games played by Darren Blewitt in 2004/2005". Soccerbase. Centurycomm. Retrieved 18 November 2009.
- "Darren Blewitt". Flown From The Nest. Steve Whitlam. Retrieved 18 November 2009.
- Goss, Patrick (15 March 2005). "Shrimpers loan Irons star". Sky Sports. Retrieved 18 November 2009.
- Fudge, Simon (22 February 2006). "Oxford trial pair". Sky Sports. Retrieved 18 November 2009.
- "Confirmation of released players". West Ham United F.C. 23 May 2006. Retrieved 18 November 2009.
- "Blewitt leaves Billericay and signs for the Swifts". Essex Chronicle. 2 June 2008. Retrieved 18 November 2009.
- "Heybridge: Swifts unveil new manager". Essex Chronicle. 4 September 2008. Retrieved 18 November 2009.
- Husson, Lee (5 March 2009). "Shot-shy Town endure another disappointing afternoon". North London Press. Retrieved 18 November 2009.[dead link]
- "Brentwood: Blewett signs for Town". Essex Chronicle. 17 September 2008. Retrieved 18 November 2009.
- "Club awards". Brentwood Town F.C. 19 May 2009. Retrieved 18 November 2009.
- "Brentwood: Blewitt set to return to Town". Essex Chronicle. 18 November 2008. Retrieved 18 November 2009.
- Darren Blewitt at Soccerbase