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Forumsβ€ΊProgress & Lab Resultsβ€ΊMarathon PR after 80 lbs weight loss β€” race day report

Marathon PR after 80 lbs weight loss β€” race day report

MikeNYC_runner Mon, May 25, 2026 at 3:02 PM 25 replies 875 viewsPage 1 of 5
MikeNYC_runner
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May 25, 2026 at 4:27 PM#1

πŸŽ‰ MILESTONE: Marathon PR after 80 lbs weight!

I can not believe I am typing this. A year ago I was in a very different place.

Numbers: A1C was 7.5, now 5.0.

Thank you to this community for keeping me sane through the hard parts. You know who you are. πŸ™

13 10PedsEndoPhilly, SleepDoc_PDX, RegAffairsDC and 10 others
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PeptideChemSF
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May 25, 2026 at 4:44 PM#2

To answer the question about Marathon PR after 80 lbs weight loss race day report β€” in my experience this comes down to a few key factors.

I have been dealing with this for about 6 months now, and what I have found is that individual responses really do vary. That said, the general consensus on Marathon PR after 80 lbs seems solid.

What specifically worked for me: starting with a lower dose and titrating slowly. I would suggest MikeNYC_runner try the same approach and reporting back.

15 19dave_SLC, FDA_TrackerJim, ricardo_MIA and 12 others
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BiostatsBrad
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May 25, 2026 at 5:01 PM#3

PeptideChemSF nailed it. Building on that β€” Marathon PR after 80 lbs weight is something I discuss with my dietitian regularly, and their clinical perspective aligns with what PeptideChemSF described.

One thing I would add: discussing this with your provider early helps.

11 9FranDenver, Dr.BariatricHTX, LindaRN_retired and 8 others
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SurmountFan_IN
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May 25, 2026 at 5:18 PM#4

Subscribing to this thread. Marathon PR after 80 lbs is exactly what I've been researching. πŸ™

Last edited: May 25, 2026 at 6:18 PM
37 20rachel_ABQ, traveltech_sara, AttorneyGrant and 34 others
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traveltech_sara
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May 25, 2026 at 5:35 PM#5

Clinical perspective on Marathon PR after 80 lbs weight loss :

I have managed ~150 patients on GLP-1 therapy and this topic comes up frequently. What the data shows β€” and what I see in practice β€” is that the medication works best as part of a comprehensive approach.

For this specific question, I would recommend: getting comprehensive baseline labs first.

50 13BenResearch_OR, MikeKY_noInsulin, Dr.RaviCardio and 47 others
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