What's the longest butterfly race you could swim?

I feel like right now I could do an 800m fly...give me a few more weeks back in the water and the 1500m might be a possibility as well..I've only been back in for about 6 consecutive weeks (swimming 2 days a week ha)

I feel like right now I could do an 800m fly...give me a few more weeks back in the water and the 1500m might be a possibility as well..I've only been back in for about 6 consecutive weeks (swimming 2 days a week ha)