Lamb has been in excellent form all summer, earning a recall to the England set-up thanks to her sheer weight of runs.
The 27-year-old has a new team for this season’s Hundred after four years at Manchester Originals, and she marked her debut with her 16th 50+ score of the season.
She struck nine fours in her 32-ball innings, sweeping conventionally and on the reverse as she dealt comfortably with Rockets’ Australia spinners Ash Gardner and Alana King.
Lamb made it to 50 in 28 balls, her second half-century in the competition and the fastest of her career.
Having passed the landmark she looked set to press on to a major score, but instead lifted Gardner’s delivery to King on the mid-wicket ropes.
That began a spell of Rockets pressure, as Phoenix lost three wickets for 10 runs, but Lamb’s runs ultimately contributed to a total the visiting side could not surpass.
