A master kettlebell instructor and academic expert leading high-performance physical training in South Korea.
Kang Sung-jin, known professionally as Go_tness, is a prominent South Korean fitness professional and educator based at BeliefGym in Seolleung. He holds high-level certifications as a General Master for the International Kettlebell Association and a Main Instructor for NSCA Korea. Beyond practical training, he is academically distinguished, having completed his doctoral coursework in the Department of Physical Education at Dankook University Graduate School. His work focuses on integrating scientific principles with functional strength training techniques.
Latest recorded followers, subscribers and engagement on each platform.
16.4K
as of Oct 16, 2026
Followers
Go_tness (Kang Sung-jin)'s contact route, audience split and rate estimates are ready — members see them in one tap.
Go_tness, whose real name is Kang Sung-jin, is a highly respected figure in the South Korean fitness and sports science community. He is recognized for his deep academic roots, having pursued a PhD at Dankook University's Department of Physical Education. Professionally, he operates out of BeliefGym in the Seolleung area, where he applies his extensive knowledge of human physiology and mechanics to help clients achieve peak physical condition.
His rise to prominence within the fitness industry is attributed to his dual mastery of practical coaching and academic theory. Unlike many influencers, he gained authority by becoming a General Master for the IKA (International Kettlebell Association) and a Main Instructor for NSCA Korea. This combination of elite international certifications and university-level research established him as a premier expert in functional movement and kettlebell training.
His content is primarily educational and technical, focusing on the proper form and execution of kettlebell movements like swings, snatches, and presses. He frequently shares insights into sports science, recovery techniques, and specialized training methods used at BeliefGym. His posts are valued by both fitness enthusiasts and fellow trainers for their precision and evidence-based approach to physical conditioning.
Kang Sung-jin is a central figure at BeliefGym Seolleung, where he provides professional personal training and educational seminars. He holds significant roles in major fitness organizations, serving as a lead instructor for NSCA Korea and the International Kettlebell Association. His business activities revolve around professional certification programs, high-end coaching, and the promotion of functional training equipment.
There are no reliable public estimates for his total net worth, as he operates as a private educator and trainer. His primary income streams include his professional coaching services at BeliefGym, fees for conducting instructor certification courses, and his work with international fitness associations. As a doctoral-level specialist, he also generates value through academic contributions and specialized workshops for fitness professionals.
His signature work is defined by his pedagogical contributions to the kettlebell community in South Korea. He has authored or contributed to training manuals and curriculum for kettlebell certifications, setting the standard for the IKA and NSCA Korea. While he is not primarily a television personality, he is a frequent guest and speaker at national sports science conferences and fitness expos.
Followers can find his latest training tips, exercise demonstrations, and academic insights primarily on his Instagram account, @go_tness. He also maintains a presence through the official channels of BeliefGym and the professional educational platforms of NSCA Korea. These platforms provide a mix of daily gym life, technical tutorials, and updates on upcoming fitness seminars.
Go_tness has achieved the prestigious status of General Master with the International Kettlebell Association (IKA), a title reserved for elite practitioners. He has successfully reached a milestone of over 16,000 followers on Instagram, reflecting his influence in the niche sports community. Additionally, completing his doctoral coursework at Dankook University marks a significant academic milestone in his career as a sports scientist.
Go_tness (Kang Sung-jin) has 16.4K followers in total, which puts this profile in the micro band (10k – 100k followers). The largest single audience is on Instagram with 16.4K followers — about 100% of the total reach.
Combined reach is the sum of followers and subscribers per platform. It is not unique people: audiences overlap, so treat it as a size indicator for shortlisting rather than a guaranteed audience.
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Here is where Go_tness (Kang Sung-jin)'s audience actually sits, platform by platform, using the latest count we recorded on each one (last checked Oct 16, 2026).
Every handle above links to the official account, so you can open it and check the numbers yourself before you reach out.
| Platform | Followers / subscribers | Share of reach | Official handle |
|---|---|---|---|
| 16.4K followers | 100% | @go_tness |
Every handle on this page links to the official account. If you are verifying Go_tness (Kang Sung-jin) before a deal, open the profiles directly rather than trusting screenshots — the live number is always one click away.
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Go_tness (Kang Sung-jin) is based in South Korea and posts in Korean. For brands that usually means the core audience follows the same market and language, with a long tail from everywhere else — big accounts rarely stay local.
The content sits in fitness & health and sports, so the people watching are self-selected for those interests. That is the useful part of a niche profile: a mid-size account inside the right category often beats a much larger general account, because the audience already cares about the subject.
If you need the same audience profile in another market, the country and language lists on CreatorFanBase let you line up comparable creators side by side instead of guessing.
If you are shortlisting Go_tness (Kang Sung-jin) for a campaign, these are the facts worth carrying into the brief. Everything here is stored data, refreshed on a schedule rather than typed in once.
A practical sequence: check the lead platform matches where your buyers are, check market and language, open the official account to see recent posting frequency, then ask for a media kit and rate card directly.
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Go_tness (Kang Sung-jin)'s counts come from the platforms themselves via instagram public profile and are refreshed on a schedule; the most recent check was Oct 16, 2026. When a platform blocks a read, we keep the last verified number and show where it came from instead of filling the gap with an estimate.
Large jumps are treated as suspect: a sudden drop past our safety threshold is held back for review rather than published, which is why the numbers here tend to be lower-drama than screenshots circulating elsewhere. Found something out of date? The profile links on this page go to the official accounts, so the live number is always one click away.
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Follower growth is best judged across several comparable monthly checks, not a few days of snapshots. CreatorFanBase does not yet have enough monthly history to call a reliable rise or fall for Go_tness (Kang Sung-jin); the current platform totals above remain the clearest view of audience size.
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Other questions people ask about Go_tness (Kang Sung-jin).
How much does it cost to hire Go_tness (Kang Sung-jin)? A planning estimate for one sponsored post is $150 – $350 per post.
| Deliverable | Estimated cost |
|---|---|
| Story or short mention | $100 – $100 |
| Sponsored post, Reel or Short | $150 – $350 |
| Dedicated video or integration | $250 – $650 |
| Three-post campaign package | $400 – $900 |
Send a free brief and CreatorFanBase checks availability, then negotiates the fee and terms with Go_tness (Kang Sung-jin) for you.
Estimates use combined public follower counts. Up to 10 million followers, we show a planning range; above 10 million, we show an open-ended starting estimate because campaign scope drives the final fee.
Agree deliverables in writing, check past brand work for conflicts, and agree how results are measured. Rates on this page are planning estimates from public follower counts, not quotes. Starter is $1 to search the full directory.
We handle outreach, rate negotiation, contracts and content delivery with Go_tness (Kang Sung-jin) and other creators for you — done-for-you.
Free to ask — no payment upfront. Booking is subject to the creator's availability and agreement, and rates are confirmed by the creator.
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How the numbers on this page are collected and what they mean.
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Official country-level internet adoption data.
Straight answers to the questions people search for.
Go_tness (Kang Sung-jin) has about 16.4K Instagram followers in the latest snapshot stored on this profile. Quote the profile and the date together. Use the Instagram row when the brief is on that network. A newer snapshot replaces this one on regular updates described on the methodology page.
A sponsored post from Go_tness (Kang Sung-jin) is estimated at $150 – $350. The range uses the combined public follower count across the platforms stored on this profile, with the Instagram rate band. It is an estimate, not a quote. Go_tness (Kang Sung-jin) sets the real fee, and usage rights or extra posts change it. The method is on the methodology page.
Go_tness (Kang Sung-jin) is not marked verified on this profile yet. The links here are still the public accounts we have on file, so compare them with the channel you know before you write. You can flag a correction on the contact page.
South Korea is the country on Go_tness (Kang Sung-jin)'s profile. Use it when you need creators from that market, then open a recent post if the city matters. A city is not stored separately. The wider set of creators tagged South Korea is on the country list.
Go_tness (Kang Sung-jin) is tagged as Korean-speaking on this profile. Use that when the script or the voiceover has to be in Korean, then watch a recent post to confirm the mix. One tag can cover more than one language in the work. Other Korean creators can be filtered in search.
The category stored for Go_tness (Kang Sung-jin) is Fitness & Health. That is the niche label on the profile, not a promise that every post matches a brief. One label covers a lot of styles. Watch a recent piece of work, then compare others on the Fitness & Health category.
Request a collaboration with Go_tness (Kang Sung-jin) using the form on this profile. Our team contacts the creator and negotiates rates and deliverables for you. Official links are also shown here if you prefer direct contact. Compare the discovery plans on pricing.
Start with the similar names on this profile, then widen to the Fitness & Health category when you need more people in the same niche. Add a follower band if the first list is too famous for the budget. Read a recent post before you write.
The newest follower snapshot stored for Go_tness (Kang Sung-jin) is 16 October 2026. Counts are updated regularly, and a missing new reading keeps the previous date rather than inventing one. Put that date next to the number if you quote it. The schedule is on the methodology page.
Go_tness (Kang Sung-jin) is tagged Fitness & Health, South Korea in the directory, so that is the audience a brand can start from. The tag is a filing label, not a sales result, so watch a recent post before you brief anyone. Then compare a few others with the same tag on the Fitness & Health list.
You can ask. Send a brief from the collaboration form on this profile with the product, the deliverable and your dates, and the CreatorFanBase team reaches out to Go_tness (Kang Sung-jin) and negotiates for you. Fitness audiences respond to routines, challenges and progress formats, so pitch a format that matches recent posts. Go_tness (Kang Sung-jin) decides whether to accept. See the managed option on pricing.
Our planning estimate for one sponsored post from Go_tness (Kang Sung-jin) is $150 – $350. Stories usually cost less than a feed post or reel, and usage rights, exclusivity and extra posts raise the fee. It is an estimate, not a quote — Go_tness (Kang Sung-jin) sets the real rate. The method is on the methodology page.
Go_tness (Kang Sung-jin) is one of the Fitness & Health profiles in South Korea on CreatorFanBase. Open the Fitness & Health category and filter by country, language and follower size to see others ranked by audience. Every filter and follower count stays open; names after the first 5 results need a plan.
Start in search with the Fitness & Health category and South Korea as the country, then set a follower range that fits the budget. Shortlist a few names like Go_tness (Kang Sung-jin), compare their platform split, and send a brief — or let CFB Agency run outreach and negotiation for you.
Go_tness (Kang Sung-jin) is tagged Korean on this profile, so a script in Korean is a natural starting point. Check a recent post to confirm the language mix before you brief. Other Korean-speaking creators can be filtered in search.
We do not publish private management contacts. Use the official links on this profile, or send a brief from the collaboration form and the CreatorFanBase team will reach Go_tness (Kang Sung-jin)'s team for you and negotiate the deal. Plans and the managed option are on pricing.
The official accounts we have for Go_tness (Kang Sung-jin) are the links on this profile, starting with Instagram. Use those when you write, and compare the handle with the channel you already know. Or send a brief from the profile and the CreatorFanBase team will reach out and negotiate for you. A wrong link can be flagged on the contact page.
Go_tness (Kang Sung-jin) has 1 platform with a stored follower or subscriber count on this profile, led by Instagram. A missing network means we do not have a public count for it yet, not that the account cannot exist. The rows are listed on the profile. Browse a single network from the creator lists.
Not through a forum post. Send a brief from the collaboration form on this profile and the CreatorFanBase team will reach out to Go_tness (Kang Sung-jin) for you. Use the official links on the profile and ask Go_tness (Kang Sung-jin) for a fee. Plan prices for directory access are separate, on the pricing page.
Open this profile and save Go_tness (Kang Sung-jin) while you compare a few other names. Saving a name does not email the creator. Growth and Agency include unlimited shortlists. Starter includes three. The plan differences, starting at $29 a month, are on the pricing page.
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