● Owner/Founder @corestrongkc 📍KCMO ● & Master Trainer - TRX15MARK ● Master Educator ● NSCACPT 🧗🏼♂️
Followers
34.8K
Following
1.3K
Total Posts
Engagement Rate
0.48%
Avg Likes
152
Avg Comments
Mark Campbell - TRX is a verified Fitness creator, with 34.8K followers on Instagram. Its posts sit across fitness and tech. To date Mark Campbell - TRX has posted 844 times, currently around 1 post a week. Engagement runs at 0.48%, or about 152 likes and 15 comments per post.
Trx_core shows up in the InstME index as a Fitness account, 34.8K followers, 844 posts.
Trx_core has an engagement rate of 0.48%, which is in the bottom quarter (median: 2.04%) for Fitness accounts with 10K–100K followers, based on 6,024 accounts in the InstME index.
For roughly every 10 likes there is one comment, an unusually discussion-heavy audience.
Trx_core's recent cadence works out to about one post per week.
Trx_core scores 100/100 on InstME's audience-quality checks, with about 0% of followers flagged low-quality or inactive, a strong signal of genuine reach.
Estimated sponsored-post value
$120–$230
Based on 34.8K followers and a 0.48% engagement rate, a single sponsored post by Trx_core is worth an estimated $120–$230. This is a modeled range, not a quoted rate, actual pricing varies by niche, content format, usage rights and exclusivity.
Audience Health
~0% of followers look low-quality or inactive.
View Full AuditThere’s more behind this audience. See what the full audit reveals.Audience (estimated)
Est.| Metric | Trx_core | Cohort median |
|---|---|---|
| Engagement rate | 0.48% | 2.04% |
| Average likes | 152 | 523 |
| Average comments | 15 | 23 |
| Posts per week | 1.26 | 0.28 |
Median values from 6,024 Fitness accounts with 10K–100K followers in the InstME index, refreshed Jul 19, 2026.
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Last reviewed: Apr 27, 2026
Mark Campbell - TRX is a verified fitness creator on Instagram, with 34.8K followers.
Mark Campbell - TRX posts on Instagram as @trx_core.
Mark Campbell - TRX has 34,783 followers on Instagram (34.8K) as of Apr 27, 2026.
Mark Campbell - TRX's engagement rate is 0.48%, calculated from average likes and comments per post relative to followers. That is in the bottom quarter (median: 2.04%) for Fitness accounts with 10K–100K followers in the InstME index.
Posts by Mark Campbell - TRX average 152 likes and 15 comments.
Mark Campbell - TRX posts about 1 time per week on average.
InstME's audience-quality analysis estimates about 0% of Mark Campbell - TRX's followers are low-quality or inactive, giving an audience-quality score of 100/100.
Mark Campbell - TRX is registered as a creator account on Instagram and is verified.
844
15
Posts / Week
1.26
Growth Score
9.6 / 100
ER Rank
34th
Predominantly men · mostly 18–34
Typical for Fitness creators, modeled from the niche, not measured for this account.
Content Focus
Primary: Fitness
Secondary: Tech
Engagement
6.78%
Mark Campbell - TRX is categorized as a fitness and tech account in the InstME index, based on the profile's bio and Instagram category across 844 posts.
Yes. Mark Campbell - TRX carries the blue verified badge on Instagram.
A sponsored post from Mark Campbell - TRX is estimated at $120 to $230. This is a model based on audience size and engagement, not a rate card, so real pricing is set by the creator.
