In their last friendly, Largs face Luncarty from Perthshire on Saturday, 2pm kick-off at Barrfields.
Thistle boss Stuart Davidson said: "They are managed by a friend of mine who I have known for many years, John Kelly, and they will provide good opposition for us before we head into the Ardagh Cup."
It is Thistle's last friendly of the pre-season after getting off to an inauspicious start in a 4-2 defeat to Gartcairn.
However, Largs have won three on the trot after that with some superb displays including a 3-0 against Greenock Morton U20s, and 5-1 against St Cuthbert of the South of Scotland League, and 5-0 against Greenock Juniors on Tuesday evening.
Striker Scott Adam has notched nine goals in the four pre-season friendlies so far.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article