His regular partner in the centre of defence celebrated the achievement earlier in the season.
Now Matt Clarke is hoping to join Christian Burgess in the Pompey centenary club at MK Dons on Saturday.
The 21-year-old has played a pivotal role in the start of the Blues’ climb back up the divisions since arriving in the summer of 2015.
And he wants to celebrate his 100th appearance with victory in front of around 6,000 travelling fans at Stadium MK.
Clarke said: “When I came here on loan a few years ago that wasn’t really something I was thinking about.
“It’s a really big honour to play so many matches for such a big club, especially at a relatively young age.
"It’s a really big honour to play so many matches for such a big club."
“I’ve loved being involved in every one of those 99 previous games and hopefully we can get a positive result in the 100th.
“The support we’re getting at MK Dons is incredible, so it would be great if that could be rewarded with three points.
“A glance at the form shows we haven’t really been at it in our away fixtures this season, so we’re looking forward to that changing.”
Burgess will not be playing a part against MK Dons this weekend, as he serves a one-match ban following a red card against Doncaster.
Clarke said: “Injuries and suspensions are a part of football and it doesn’t make much of a difference to me to have someone else there.
“I just have to play my own game and whoever comes in will also be trying their best to help the team keep a clean sheet.”