Data updated: July 2026
SERGEI MARK KOSOROTOV β
@sergey_mark Β· Instagram Β· PL Β· sports
About SERGEI MARK KOSOROTOV
SERGEI MARK KOSOROTOV is a professional handball player based in Poland, known for his engaging presence on Instagram. With a follower count of 9,122, he operates within the nano influencer category, focusing on sports and fitness content. His posts often feature a blend of informative and motivational tones, appealing to a younger audience. SERGEI shares his journey and experiences through various content formats, including reels, static posts, and stories, reflecting an authentic and raw vibe. Some content may require brand review.
@sergey_mark's followers & following
@sergey_mark currently has 9,122 followers on Instagram and follows 970 accounts, a follower-to-following ratio of 9.4. That places the account in the nano tier of sports creators.
@sergey_mark's content
@sergey_mark has published 133 posts to date, working across reels, static-posts, stories. The account's content is classified under sports, sports, fitness. Bio: βProfessional handball player π·πΊ @rushandball π΅π± @sprwislaβ
AI quality check on @sergey_mark
Zaver's AI analyzed this account across 20+ parameters before listing it publicly. No blocking issues were detected in our standard screening.
- Audience location & demographics
- Engagement quality & authenticity
- Follower growth patterns
- Signs of purchased followers
- Content niche classification
- Brand safety screening
- Posting activity & consistency
- Language & audience fit
@sergey_mark's rankings on Zaver
Based on follower count among creators that passed Zaver's indexing quality bar.
@sergey_mark's audience
Audience snapshot
70% male Β· 30% female
Core age group18-24
The audience skews predominantly male at 70%, primarily within the 18-24 age range. The top geographic location for his followers is Poland, suggesting a localized engagement that may appeal to brands targeting this demographic.
Collaboration pricing
Price tierBudget
Get the AI fair-price estimate β free trialWhich brands fit SERGEI MARK KOSOROTOV?
Brands in the sports and fitness sectors may find a suitable partnership with SERGEI, given his authentic representation of athleticism and motivational content. His budget pricing tier makes him accessible for collaborations aimed at reaching a younger, active audience.
Frequently asked questions
How many Instagram followers does @sergey_mark have?
As of July 2026, @sergey_mark has 9,122 followers (9.1K) on Instagram, follows 970 accounts, and has published 133 posts. Zaver refreshes these numbers on a rolling basis.
How do I contact @sergey_mark?
Verified contact details for @sergey_mark β including business email where available β are held in Zaver, alongside contacts for millions of other Instagram creators. Zaver users can unlock them instantly and reach out from your own inbox. Unlock @sergey_mark's contact info β free trial β
How much does @sergey_mark charge for a sponsored post?
@sergey_mark sits in the budget price tier on Zaver, based on follower scale, engagement and niche. Zaver's AI pricing model also produces a fair per-post price range with justification, so brands can negotiate from data instead of guessing. Get the AI fair-price estimate β
What is @sergey_mark's net worth?
@sergey_mark's net worth isn't publicly verified, and Zaver doesn't estimate personal wealth. What can be assessed is sponsored-post earning potential: with 9.1K followers and a budget price tier in sports, brand collaborations are a meaningful income stream β Zaver's AI pricing model estimates what each placement is worth. See the earning-potential estimate β
Does @sergey_mark have fake followers?
Zaver's AI authenticity check scores @sergey_mark 98/100, based on 20+ signals including engagement quality, follower growth patterns and signs of purchased followers. That indicates a predominantly genuine audience. Run the full authenticity check β
Who follows @sergey_mark?
@sergey_mark's 9.1K followers skew 70% male / 30% female, core age group 18-24. Full audience breakdowns β age bands, gender split and country-level distribution β are part of @sergey_mark's report on Zaver.
Which influencers are similar to @sergey_mark?
Zaver lists comparable sports creators in Poland in the "Influencers like @sergey_mark" section on this page, matched by niche, audience size and engagement. Zaver users can also search all 42,421 vetted sports creators with plain-English queries.
What is the follower count?
SERGEI has 9,122 followers.
What is the engagement rate?
The engagement rate data is not available.
What is the collaboration pricing?
Collaboration pricing is estimated to be in the budget tier.
What is the content niche?
SERGEI primarily focuses on sports and fitness.
