Work / Case study
Kori Sampson: more clicks from the views he was already getting
YouTube was already showing Kori to new people. We worked on what we could control (uploads, research and thumbnails) so more of them clicked.
Goal: Higher engagement on YouTube, by working on what we can control.

- Client
- Kori Sampson
- Sector
- Creator / YouTube
- Services
- YouTube strategy, Data & research, Thumbnails
- Date
- November 2026
- Website
- www.youtube.com/@korisamps
The brief
Kori Sampson is a hybrid athlete documenting his training and races on YouTube, including his Brick by Brick series, filmed with Kev. The content was strong. The goal was simple: more engagement.
✕
What we can't control
- What the algorithm decides to push
- Which video takes off and which doesn't
- How a race or a training block goes
✓
What we can control
- When each video goes out
- How it's packaged: the title and the thumbnail
- How fast the video gets going
- What we learn from every upload
So that's where we put the work: optimising uploads, research and thumbnails.
Step one: read the data
Before changing anything, we went through the channel's analytics. Three things stood out.
YouTube was already putting Kori in front of new people. Thumbnails and titles decide whether they click. That made packaging the biggest lever we had.
The data also shaped how the videos are made:
Open on the moment
The first 60 seconds is where viewers drop. Open on the big moment and the goal straight away, no slow intro.
Keep it moving
20 to 25 minutes is the sweet spot. Cut the filler.
One clear goal
One goal per video, kept understated and premium. "Sub 2:53." Not shouty YouTube stuff.
Step two: optimise every upload
Kori's audience peaks on Monday between 5pm and 8pm. So videos go live at 3pm on Monday, which gives YouTube a couple of hours to start pushing them before the rush. It also lands mid-morning on the US East Coast, his second-biggest country. If a Monday is missed, the backup is Sunday at 4pm, just ahead of his second-busiest window.
Alongside the timing, every upload gets the basics right: a title built around one clear goal, a proper description and the settings that are easy to get wrong.
Step three: thumbnails, with a system
Thumbnails got a system of their own. BrandBildr wrote the thumbnail briefs and art-directed a designer on every one: a bold one-word headline, Kori's face for emotion, and the series and episode tag in the same place every time.
George led the strategy. He got clear on the goal for each video first, then aligned the team around it, briefing the designer so the thumbnail, the title and the upload all pulled in the same direction. One goal, one direction, seamless results.




Step four: test, don't guess
We A/B test thumbnails on every upload. For EP 14, Kev loved one option and Kori preferred the other. So nobody's opinion decided it. We let the algorithm decide.
Good pick. But it doesn't matter what you, Kev or Kori think. YouTube's Test & Compare shows each thumbnail to a share of real viewers and keeps the one that earns the most watch time. The viewers decide.
The results
EP 14 was the first upload with the full approach in place.
The top three click-through rates on the channel all belonged to videos with new thumbnails.
- Previous 10 average 5.7%
- EP 14 · Backyard Build7.6%+1.9 pts vs average
- My Biggest Challenge Yet?7.5%+1.8 pts vs average
- Berlin · No Risk6.1%+0.4 pts vs average
- Sydney · Half Marathon PB6.1%+0.4 pts vs average
- Sydney · How Bad6.1%+0.4 pts vs average
- EP 13 · Back to Work5.8%+0.1 pts vs average
- Sydney · Men's Health5.7%+0.0 pts vs average
- Sydney · Did What I Said5.5%-0.2 pts vs average
- Boston · No PB5.2%-0.5 pts vs average
- Kenya Safari4.5%-1.2 pts vs average
- EP 12 · Switzerland4.5%-1.2 pts vs average
More clicks meant a faster start. In its first 19 hours, EP 14 out-performed every one of Kori's last ten videos over the same window:
- EP 14 · The Backyard Build4.6k
- Sydney · Did What I Said4.5k
- EP 13 · Back to Work4k
- Berlin · No Risk3.5k
- Sydney · Half Marathon PB3k
- My Biggest Challenge Yet?2.5k
- Sydney · How Bad1.3k
- Sydney · Shooting For1.2k
- Boston · No PB1k
- Kenya Safari595
What's next
The work compounds. Every upload is a new test, and the data now shapes what gets filmed. Next up: trend analysis on what's performing in Kori's space, and the idea of telling his February race as a doc-style series in chapters.
Not heard of Kori? Check him out: youtube.com/@korisamps
In their words, on Google
Super helpful for my brand and very efficient, identified issues and solved them rapidly. Excited to continue working together
Let's chat
Ready to roll the dice?
If you aren't willing to make a change, don't expect different results. I like helping founders, creators and anyone who wants to make something happen.
- Prefer not to talk?
- I'll come back to you
- Find us
- Plymouth, UK
- Working UK-wide and beyond
