Here’s a Chairboys quiz question for the pub.
Wycombe have played three times at Fratton Park, but got only two results. Why?
As it’s only last season, most will know the first league game between the two was abandoned.
In fact, the called-off game with the scores level at 1-1 in October came with the kind of howling monsoon you normally see only in Hollywood movies. Witness the biblical deluge.
Billy Knott fired home via the underside of the bar, but former QPR favourite Patrick Agyemang stuck out a leg to divert into the net - and that was all she wrote after the deluge took hold.
The rearranged game was just as dramatic.
In the fifth minute of stoppage time, sub Anthony Stewart only on for nine minutes, rose to head home a leveller after Wycombe led through Matt McClure.
The home side moved into a second-half lead, but not before Matt Ingram pointed where he wanted a Pompey penalty put, and David Connolly duly obliged.
However, the save appeared irrelevant after Andy Barcham fired high into the net and his side then went ahead through Patrick Agyemang's header.
When Stewart thumped home the leveller, the team en masse, including Ingram upfield for a do-or-die finale, went wild in front of their joyous supporters.
Boss Gareth Ainsworth’s celebrations were somewhat muted.
"I've got mixed feelings. I'm elated we got the draw but I'm angry that we played like we did in the second half,” he said.
"Once the ball came on the floor in the first half I thought we had the better of the play.
"They camped out in our half second half. I was disappointed because the decisions we made in the middle of the park weren't right.
"We had a plan to alleviate the pressure and it didn't work. But thank goodness for the penalty save and Anthony's late header at the end is fantastic.
"It's about time I had a bit of luck and a late goal."
And the third Wanderers game on the south coast?
That was the season before in the Football League Trophy when Wycombe won 3-1 after Joel Grant’s goal inside a record-breaking 13 seconds seized the initiative for the Bucks boys.
It bodes well for Saturday, but of course that’s the kiss of death.
Keep up to date with all the build-up. matchday and post-game reaction to Portsmouth v Wycombe right here on GetBucks.