Pompey Academy were leading 2-0 at Yeovil when their Youth Alliance League match was abandoned on Saturday.
Issiaga Kaba had opened the scoring, while Harry Anderson (pictured) doubled the lead from the spot following a foul on Alfie Bridgman.
With torrential rain falling throughout, however, the referee decided the pitch was unsafe and the sides did not return for the second half.
Professional development phase coach Liam Daish said: “The lads were playing with real confidence, moving the ball well and adapting to the conditions.
"It’s just a shame that we couldn’t play the other 45 minutes. There was standing water on the pitch and it wasn’t going to get any better."
“There were a lot of pluses from the performance. I was pleased with our attitude and how we responded to the previous week’s defeat.
“It’s just a shame that we couldn’t play the other 45 minutes. There was standing water on the pitch and it wasn’t going to get any better.
“The pitch had passed an inspection at 4pm on Friday and then at 6.30am on Saturday. Hindsight is a wonderful thing, but the forecast was for non-stop rain from that point on.
“It’s disappointing that we have to go back to play the game again, but now we’ll try to build on our display in the first half.”