Born June 1981 in Weston-super-Mare, Somerset, Trego made his first-class debut for Somerset in April 2000 against Oxford Universities.
He took two wickets in the match, but was not required to bat.
His first appearance in county cricket came two months later, playing a Norwich Union National League game against Sussex.
One of the highlights of Trego's debut season came in the Scarborough Festival County Championship match against Yorkshire, where he made an unbeaten 27 batting in Somerset's first innings, followed by bowling figures of 4/84 in Yorkshire's first innings.

Towards the end of the 2000 season, Trego was selected as part of the English U-19 cricket team to play the touring Sri Lankan U-19 cricket team.
He appeared in all three One Day Internationals (ODIs), scoring a half century and taking four wickets as he did so.
He also played in the first Test, scoring 90, and taking 1/48 in the match.

He remained at Somerset for another two season before joining Kent for the 2003 season.
Then, after a season playing for Worcestershire Second XI, he joined Middlesex for the 2005 season.
He returned to Somerset in 2006.
He joined Casey-South Melbourne in the winter of 2010–11.

His maiden first-class century was 140 against West Indies 'A' in 2002.
He scored 3 Championship centuries for Somerset in 2006 including 135 against Derbyshire.
His best first-class bowling performance was 6–59 for Middlesex against Nottinghamshire in 2005.

During the English Winter of 2012–13 and 2013–14 he played in New Zealand for the Central District.

He is the leading runscorer in Hong Kong Sixes cricket(184 runs) He also has the record for the highest individual score in Hong Kong Sixes(65*)
In July 2019, he was selected to play for the Rotterdam Rhinos in the inaugural edition of the Euro T20 Slam cricket tournament.
However, the following month the tournament was cancelled.

Trego was released by Somerset at the end of the 2019 season and signed for Nottinghamshire on a two-year contract.
Born June 1981 in Weston-super-Mare, Somerset, Trego made his first-class debut for Somerset in April 2000 against Oxford Universities. He took two wickets in the match, but was not required to bat. His first appearance in county cricket came two months later, playing a Norwich Union National League game against Sussex. One of the highlights of Trego's debut season came in the Scarborough Festival County Championship match against Yorkshire, where he made an unbeaten 27 batting in Somerset's first innings, followed by bowling figures of 4/84 in Yorkshire's first innings.
Towards the end of the 2000 season, Trego was selected as part of the English U-19 cricket team to play the touring Sri Lankan U-19 cricket team. He appeared in all three One Day Internationals (ODIs), scoring a half century and taking four wickets as he did so. He also played in the first Test, scoring 90, and taking 1/48 in the match.
He remained at Somerset for another two season before joining Kent for the 2003 season. Then, after a season playing for Worcestershire Second XI, he joined Middlesex for the 2005 season. He returned to Somerset in 2006. He joined Casey-South Melbourne in the winter of 2010–11.
His maiden first-class century was 140 against West Indies 'A' in 2002. He scored 3 Championship centuries for Somerset in 2006 including 135 against Derbyshire. His best first-class bowling performance was 6–59 for Middlesex against Nottinghamshire in 2005.
During the English Winter of 2012–13 and 2013–14 he played in New Zealand for the Central District.
He is the leading runscorer in Hong Kong Sixes cricket(184 runs) He also has the record for the highest individual score in Hong Kong Sixes(65*)
In July 2019, he was selected to play for the Rotterdam Rhinos in the inaugural edition of the Euro T20 Slam cricket tournament. However, the following month the tournament was cancelled.
Trego was released by Somerset at the end of the 2019 season and signed for Nottinghamshire on a two-year contract.
Peter Trego