Am I the only one swimming in a 25yd pool wondering if all of these numbers are in pace / 100m or / 100 yd? 
I can only agree roughly with those already commented - if the goal is to compare current swim pace to age group place in triathlon open water I’d only offer that most higher tiered AG (triathlete) people in our pool are probably swimming ~1:20-1:25 / 100 (SCY). Their workouts are probably based on a 1:25-1:35 / 100 send off pace for most sets.
I think comparing race time to pool time has too many difficulties (many already noted) - swim conditions, course accuracy, whether they swam straight, wet suit or not, timing mat placement, etc…
Good work on your improvements so far, swimming is hard for those of us who really like oxygen and have picked it up in adulthood.