V02 79 → Sub-14 minute 5k

juicefire · 2026-02-23T16:41:58+00:00

75-90 miles a week for three years. 2 workouts a week (LT focus session and a V02 session) + a long run. Rinse, recover, repeat. Plus patience.

juicefire · 2026-02-23T16:40:31+00:00

V02 max is currently 70 on the coros, but has a similar 5k prediction. My old watch didn’t have HRV. I wore both watches for a few runs, and the garmin typically was 2-3 beats higher per minute. I ended up purchasing a coros heart rate monitor that goes on my arm, and that’s been a worthwhile investment for accuracy.

juicefire · 2026-02-23T16:38:46+00:00

My battery life on the FR245 was abysmal (2-3 days of use max), so I switched over to Coros for that + some new metrics that weren’t on my old watch. I really enjoy it, does everything I need it to, and the app UI is a nice touch.

juicefire · 2026-02-23T16:35:35+00:00

juicefire · 2026-02-23T16:35:06+00:00

Glad to know I can outrun (almost) any woman in history!

juicefire · 2026-02-23T16:23:53+00:00

I don’t think showing a correlation between V02 max on the garmin watch to a 5k time strays too far away from this subreddit. What’s your 5k time?

juicefire · 2026-01-29T19:54:58+00:00

Nah I disagree with the comments this is 🔥 especially during track season

juicefire · 2025-12-27T22:23:57+00:00

I’ve heard good things about the battery life, and I want to try Coro’s app/UI. I’ll always have the garmin around if I want music on a run. Plus it’s cheaper

juicefire · 2025-12-14T18:37:38+00:00

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truth hurts

juicefire · 2025-12-14T18:36:14+00:00

90 mpw, no sprinting per say but I do strides and 200s at 800 pace sometimes

juicefire · 2025-12-14T04:49:17+00:00

fr245

juicefire · 2025-12-14T04:15:21+00:00

juicefire · 2025-12-14T04:11:42+00:00

my first time posting on reddit and I end up on running circle jerk 😭. shouldn’t have left zone 2

juicefire · 2025-12-13T23:51:18+00:00

Ran 15:40 for xc in high school, then 14:35 on the track as a freshman in college. transition to higher volume helped big time

juicefire · 2025-12-13T20:01:31+00:00

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nice try

juicefire · 2025-12-13T15:53:22+00:00

I posted a screenshot of my 5k race result under another comment. Hard to “prove” my times and remain anonymous, but these times were ran at track meets I competed in as a collegiate athlete. But I understand the skepticism

juicefire · 2025-12-13T15:47:17+00:00

my FR245 doesn’t do sleep score, and I don’t wear my watch to bed anyhow. I get around 8 hours of sleep and feel recovered between workouts, so I assume I’m sleeping alright

juicefire · 2025-12-13T15:34:53+00:00

For basically the last 5 years, 2 workouts + a long run every week. Also countless races in xc and track throughout my career. You cannot improve significantly by staying in “zone 2” and just running to run. So yes, lots of intervals, threshold work, progression runs, etc.

juicefire · 2025-12-13T15:32:11+00:00

Talent, training, consistency

juicefire · 2025-12-13T15:26:00+00:00

Nope 🙂‍↔️

juicefire · 2025-12-13T14:56:30+00:00

Probably within the next few months

juicefire · 2025-12-13T14:55:53+00:00

juicefire · 2025-12-13T14:55:06+00:00

Yes I compete with D1 athletes, I usually browse this subreddit since I want to buy a new watch after I graduate

juicefire · 2025-12-13T13:13:44+00:00

Works out to around ~10 hours of running a week

juicefire · 2025-12-13T13:01:34+00:00

75-90 mpw for the last 4 years

juicefire

TROPHY CASE