[1][4] Aged 18, Lamb opened the batting for Lancashire Thunder in the 2016 Women's Cricket Super League.
[10] Between 2016 and 2019, Lamb made 30 appearances for Thunder in the Super League, scoring 329 runs and taking 21 wickets.
[3] In 2020, Lamb played for North West Thunder in the Rachael Heyhoe Flint Trophy.
[17] She was also North West Thunder's leading run-scorer in the Rachael Heyhoe Flint Trophy, with 237 runs including her List A high score of 121.
[20] She played for the England women's academy in matches against Sri Lanka A and Australia Shooting Stars.
[1][2] In February 2020, Lamb attended a Professional Cricketers' Association rookie training camp.
[23] In August 2021, Lamb was added to England's Women's Twenty20 International (WT20I) squad for their series against New Zealand, after Maia Bouchier and Charlie Dean were both ruled out of the first match after being identified as possible COVID-19 contacts.
[25] In December 2021, Lamb was named in England's A squad for their tour to Australia, with the matches being played alongside the Women's Ashes.
[28] In June 2022, Lamb was named in England's Women's Test squad for their one-off match against South Africa.
[30] The following month, also in the series against South Africa, Lamb scored her first century in WODI cricket, with 102 runs.