Training for a Fast 5k with Runna, Weeks 5-8 @kofuzi
Training for a Fast 5k with Runna, Weeks 5-8  @kofuzi
Uploaded June 2025 | Updated September 2026, 6 hours ago
I’ve been training with Runna for a Fast 5k attempt in June, and this is weeks 5-8 of my training plan. While things aren’t quite as hectic as in the last installment for weeks 1-4, I’ve still got to juggle attending the Boston Marthon and a trip to Japan for work. But on the plus side, at the end of that trip, I did get to hop in a race and see where my 5k fitness really stands.

0:00 intro
0:39 Week 5
5:15 Week 6
13:46 Week 7
19:14 Week 8

Catch up on Episode 1: Weeks 1-4
youtu.be/GnzBG5qJbtc

Disclosures: Runna is the sponsor of this video series. No other brand has paid to have their marks or products depicted in this video. At the end of the video, I mention that I have a promo code. I do not earn any more money if you use the code. I do not lose any money if you choose not to use the code.

If you’d like to try Runna for free for two weeks, use code KOFUZI
web.runna.com/redeem?code=KOFUZI

If you want to join me in racing the First to Fast 5k in New York on June 7, there’s still time to sign up
eventbrite.co.uk/e/runnas-first-to-fast-5k-new-york-city-tickets-1269187025559?aff=oddtdtcreator

subscriber count at time of upload: 217,885
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Training for a Fast 5k with Runna, Weeks 5-8

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