Early years

In 1837, Dorrinton continued to play only sporadically for Kent, appearing in four matches that season, scoring seven runs overall at an average of 1.00.^[5] In 1838 and 1839 he again played two matches each, scoring six runs at 2.00 and 11 runs at 3.66. This second season total was all accrewed in a single innings of 11 runs.^[5] In 1840 he played two more matches, scoring 27 runs across the season, at 9.00 with a high score of 22, all career bests.^[5] He also took his first wicket on in a rare bowling spell.^[8] His form continued into his first substantial season for Kent in 1841, where he played in seven matches, scoring 86 runs in the season at 8.60 with a high score of 21.^[5] In 1842 his batting continued to return career best figures with 118 runs from eight matches at 9.83, including a high score of 31.^[5]

Golden years

The period from 1843 until 1847 were Dorrintons most successful on the cricket pitch. In 1843 he played seven matches, scoring 90 runs at 7.50 with a high score of 24.^[5] It was during this season that he supplemented his career at Kent by playing for Hampshire, prior to the clubs elevation to full county status.^[1] Dorrinton began his most prolific years in 1844, where he played a total of 16 matches, scoring career bests of 310 runs at 10.00 with one half century,^[5] a score of 50 for the MCC, for which he also began playing. This was also his most successful year in the field, taking 16 catches and taking the wicket-keepers position for the first time and returning with five stumpings.^[5] He would continue to use the gloves each season for the remainder of his career.^[5]

He continued to represent both Kent, Hampshire and the MCC in 1845, playing 19 matches and bettering his previous year with the highest statistics of his career, 522 runs at 15.35, with two half centuries and a high score of 65. He continued with the gloves, taking 13 catches and completing six stumpings.^[5] He also took his second and final first–class wicket.^[8] By the end of the 1845 season, however, Dorrinton left Hampshire, and in the following season he left the MCC to play only for Kent.^[1]

Decline and death

The 1846 season saw his batting form drop, however, with a reduced 11 appearances returning only 99 runs at 4.95, with a highscore of 25. He continued to hold the gloves, taking 13 catches and completing three stumpings^[5] In 1847 Dorrinton joined Suffolk as well as continuing at Kent, and enjoyed a slight rise in form, scoring 105 runs from 10 matches, including a best score of 34*, at 6.17. He also took 12 catches and performed eight stumpings^[5] He left Suffolk at the end of 1847, to once again begin the next season playing only for Kent. The final season of his career in 1848 was, however, one of little success. In only four appearances he scored 43 runs at 7.16, at no time passing 16 runs, and took only five catches and performed three stumpings.^[5] Dorrinton retired from Kent that year.^[1] He was chosen to play one match for the All England XI late in the season on 20 September. Opening the batting, he scored three and one, took three catches and performed one stumping,^[9] however he did not return to the cricket field again, and just over a year later died in his home town in Kent.^[1]