He has been part of the one-day set-up for Kent since 2002, but did not secure a regular place in the first-class County Championship team until 2007, a year after taking his maiden ten-wicket haul. He was selected as part of the England One Day International (ODI) squad to tour New Zealand in 2007–08, but had to wait until 2010 to make his international debut.
After impressing during the 2009 season with Kent, helping the team gain promotion back to the first division of the County Championship, Tredwell played his first Test and ODIs against Bangladesh in March 2010. His Twenty20 International debut followed two years later. Since then, he has taken more than 70 wickets in 60 international matches.
Tredwell made three appearances in youth Test matches for England's Under-19 cricket team against the West Indies in August 2001. He made his debut in the first Test at Grace Road, Leicester, alongside future Test cricketers James Anderson and Matt Prior. He claimed six wickets during the series, at an average of 32.50.
He was offered a contract with Kent in 2001 after playing for the youth team. He was one of 14 players who were selected for the National Academy in Loughborough in 2003–04, and the subsequent tours of Malaysia and India.
He made his first List A appearance for Kent Cricket Board against Worcestershire Cricket Board in the first round of the 2000 NatWest Trophy, when he was run out for ten and took one wicket. He also appeared in the subsequent two rounds of the competition, until Hampshire knocked them out in the third round. He spent the remainder of the 2000 season playing for Kent Second XI. He once again appeared in the first three rounds of the renamed 2001 Cheltenham & Gloucester Trophy, scoring 71 opening against Buckinghamshire in the second round, and 57 from the same position in the third round defeat to Warwickshire. His first-class debut for Kent came later in the same season, against Leicestershire in July 2001, claiming the wicket of Aftab Habib as his first scalp in a match that Kent won by three wickets at Grace Road.
His one-day debut for Kent County Cricket Club came in the 2002 Benson & Hedges Cup, where in a rain-reduced match, he claimed the wicket of Owais Shah as he finished with one wicket for 26 runs. He made 19 List A appearances for Kent in 2002, finishing the season with 21 wickets at an average of 23.76.
He played just two County Championship games in 2005, but played extensively in the one-day game, earning an extension to his contract. He became more involved with the Championship side in 2007, scoring his maiden first-class century (116*) against Yorkshire, and returning then career-best bowling figures of 6/47 against Surrey.
He was part of the side that won the 2007 Twenty20 Cup, beating Gloucestershire in the final.
At the end of the 2008 season, Kent were relegated from the first division of the County Championship, and they spent one season in the second division, achieving promotion at the end of the 2009 season by winning the second division title. During their promotion winning season, Tredwell took his career-best bowling figures, claiming 8/66 in a match against Glamorgan, a performance that gave him the leading bowling figures in the County Championship's second division. He finished the 2009 season with 69 first-class wickets at an average of 26.63; the first season in which he had taken more than 40 wickets or more than one five-wicket haul. He was also the second-highest wicket taker in the division behind leg-spinner Danish Kaneria (75).
Tredwell was named as captain of Kent for the 2013 season, replacing Robert Key. During his captaincy, Tredwell was called up to play for England in the Champions Trophy and then the one-day series against New Zealand and later against Australia. He found juggling both the Kent captaincy and his international commitments difficult and, as a result he resigned the captaincy to be replaced by the returning Key in November 2013.
In March 2016 Tredwell was selected to represent the MCC in the Champion County match against Yorkshire in Abu Dhabi. He took six wickets in the match, bowling 65 overs in the match.
His performances in the 2007 season, and with the Performance Squad in India over the winter of 2007–08, led to his first call-up to the England ODI squad on 4 January 2008. However, he did not play in the series.
In December 2009, a series of injuries in the England senior squad on tour in South Africa prompted Tredwell's call-up to England's Test squad. Coach Andy Flower described him as a "like for like" replacement for Graeme Swann in case Swann's side injury worsened. Earlier on in the tour, he had been added to England's limited overs squad, also as cover for Swann, although he did not play a game as England won the ODI series 2–1.
Tredwell finally made his debut for England in an ODI against Bangladesh in March 2010. England won the game but Tredwell did not take a wicket, finishing with figures of 0–52 of his 10 overs. He made his Test match debut in the second Test against Bangladesh, taking 2–99 in the first innings before making 37 with the bat. He took 4–82 in the second innings as England secured a convincing win. Tredwell played his first match for England on home soil in the return series, taking 0–18 at Trent Bridge.
Tredwell was selected in the England squad for the limited overs tour of Australia, but only played in one game, the second ODI, in which he took figures of 0–44 as England lost by 46 runs. He was named Player of the Match in England's final group qualifier of the 2011 World Cup against the West Indies, with bowling figures of 4–48. He also played in the Quarter final. It proved expensive, finishing with figures of 0–38 in six overs as England went out of the tournament.
Tredwell played his second game against Australia in July 2012, taking figures of 2–23 as England won by seven wickets. He played three games against South Africa, where he took figures of 2–49, 3–35 and 0–30. He made his International T20 debut against India at the back end of 2012, although he proved ineffective, taking figures of 0–31.
At the start of 2013 Tredwell had established himself as a key part of England's limited overs team and played in all five matches against India. He took 4–44 in the first game as England got off to a good start to lead the series 1–0. although England lost the next three games, Tredwell took wickets in all of them, including 2–29 in the third ODI. In the final game of the series, Tredwell took 2–25 as England secured a victory, despite losing the series 3–2.
Tredwell played in all three T20 games against New Zealand, taking 0–24 in the first game as England secured a 40-run victory. In the second game, he made 22 with the bat, but was unable to prevent a defeat for England. Tredwell played in the third ODI against New Zealand, taking figures of 3–51 as England won by 34 runs.
Tredwell went into the 2013 Champions Trophy as England's main spin bowler. He took 1–51 in the first game as England beat Australia to get off to a winning start. In the quarter finals against South Africa, Tredwell took figures of 3–19 to help England rip through the South African batting line-up and secure a place in the final. In a rain-affected match against India, he took 1–25. However, England narrowly lost the match by 5 runs, with Tredwell at the crease at the end of the innings as England fell just short.
Tredwell played in the two T20 games against New Zealand after the Champions Trophy. In the second game he was named captain as Stuart Broad was rested and Eoin Morgan suffered an injury. However, the game was abandoned after two balls due to heavy rain.
Following England's Ashes success, Tredwell went into the ODI series as England's main spinner. He took 1–60 in the first ODI, while rain prevented him from bowling in the second. He took 3–53 in the third match as England won by 3 wickets. He was not effective in the fourth match of the series, ending with figures of 0–38 from just four overs, as England lost by 49 runs.
In the return series in Australia, Tredwell was again selected in the ODI squad. He did not play until the third match, where he took 0–42 as England lost by seven wickets. He played in the next match, but again failed to take a wicket as England won by 57 runs, their first victory of the tour. Tredwell finished with 0–28 in the next match, which England again lost, meaning his overall figures for the series were 0–96. Tredwell played in one of the two T20 matches, taking 1–37, as England suffered another defeat.
Tredwell was selected in the squad for the limited overs tour of the West Indies, in preparation for the T20 World Cup. He took 1–23 in the first game, followed by 2–39 in the second as England won by three wickets. England won the final match of the series and although Tredwell did not take a wicket, he bowled his ten overs for just 38 runs. In the first T20 match, Tredwell took 1–16 from his four overs, although England still lost the game. He did not take a wicket in the next two games in the series, although he continued to bowl economically.
In the T20 World Cup, Tredwell was selected for the first game against New Zealand, although he did not bowl. He played in England's victory against Sri Lanka, although he did not pick up a wicket. He picked up his first wicket of the tournament against South Africa, finishing with figures of 1–25. In England's final game of the tournament he did not pick up a wicket in their defeat against the Netherlands.
In the first ODI against Sri Lanka, Tredwell took figures of 3-38 as England won by 81 runs on the DL method. He took 1-57 in the next match before taking figures of 2-2 in three overs in the grid match to help England win by ten wickets. In the next game he took figures of 1-39 before finishing the series with figures of 2-30, although England went on to lose the game and the series. Tredwell was praised as one of England's stand out bowlers as he was able to peg back the opposition and also take wickets at vital times.
Tredwell took 2-42 in the second ODI against India. In the third ODI he took 1-46 and also scored 30 with the bat, although England could not chase down their victory target. In the final game off her series 0-35. In the only T20 match between the sides he did not take a wicket, although he bowled economically, going at just seven runs per over. England went on to win the match.
Tredwell was selected for the return series in Sri Lanka. He played in the first game, taking figures of 2/52 in his ten overs. In the second match he was wicket less, finishing with figures of 0-47. Tredwell did not play in the next two games although he returned for the fifth match of the series, taking figures of 1-33 to help England get back into the series. In the sixth match between the two sides, Tredwell took figures of 1-37 and made 19 with the bat. Tredwell did not take any wickets in England's final match of the series, although he did again add runs at the end of the innings, this time making 17 to help England past 200, but it wasn't enough to avoid another defeat.
Despite being selected in the Tri-series squad for the tournament against India and Australia, Tredwell did not play as Moeen Ali was instead chosen as England's sole spinner.
He was selected in the World Cup squad but again had little playing time at the tournament, only appearing in England's final game of the tournament against Afghanistan. Tredwell took figures of 1-25 to help England win the match by nine wickets, although they had already been eliminated from the tournament.
Tredwell was selected in the England squad that toured the West Indies due to an injury to Moeen Ali. Tredwell played in the first game of the series and performed well in the first innings, taking 4-47 as England restricted the West Indies to less than 300. However, England couldn't force a result in the second innings, with Tredwell taking 1-93. The match ended in a draw and Tredwell was not selected again in the series.
as of 6 July 2016