Trialist Andrew Lowe impressed with the bat but couldn't prevent Northamptonshire losing to Middlesex twice in the Second XI Twenty20 competition at Uxbridge on Friday.
Lowe, from Sydney but with a British passport, is playing at Richmond CC this summer under the Adam Gilchrist sponsorship scheme.
He hit 50 off 42 balls in the first of two matches - but the County could only manage 122-6 in their 20 overs, and Middlesex coasted home by nine wickets with 6.2 overs to spare.
The second match was much closer, though.
Replying to the home side's 177-3, Northamptonshire fell just short on 170-4 - thanks to Lowe's excellent knock of 82 from 60 deliveries with two sixes and ten fours.