Home Pro scene Tournaments Tracker Tools

Calendar
News

Search ROSTERA

Sign in with Epic Games

Sign-in is not connected yet. Profiles, tournaments and stats are open without an account.

Accounts will bring:

Favourite players and teams · Tournament subscriptions · Personal calendar · Notifications · Saved comparisons

Language

Русский
English
Deutsch
Français
Español
Português
Italiano
Polski
Українська
Nederlands
Türkçe
Română
Čeština
Svenska
Ελληνικά
Magyar
Suomi
Dansk
Norsk
Български
中文
日本語
한국어
हिन्दी
Bahasa Indonesia
Tiếng Việt
ไทย
Bahasa Melayu
Filipino
বাংলা

Time zone

About

ROSTERA

Home
Pro scene
Tournaments
Tracker
Tools
Calendar
News

Sign in with Epic Games

Sign-in is not connected yet. Profiles, tournaments and stats are open without an account.

Accounts will bring:

Favourite players and teams · Tournament subscriptions · Personal calendar · Notifications · Saved comparisons

ROSTERA Discord server

About

Loading…

ROSTERA

Fortnite. Esports. Tracker. Tools.

Navigation

Home
Pro scene
Teams
PR
Transfers
Tournaments

Sections

Tracker
Tools
Calendar
News

Socials

Our email

Write to us at this address and we will reply.

Every match counts.

Privacy
Terms of use
Cookies
Advertising
Copyright
Disclaimer
Contacts
Delete my data

ROSTERA is an independent project and is not affiliated with Epic Games. Fortnite is a trademark of Epic Games, Inc.

Report a problem on this page

What is wrong

For example: wrong earnings, someone else's photo, the page does not load.

How to reach you

Optional: email or Discord if you want a reply.

Koski 不 · Overview · Tracker · ROSTERA

Koski 不

Account verified by Epic ID

0 profile views in 30 days

Compare players

Koski 不

current profile

Second player's name or Epic ID

Both players are compared in the same mode and period

Mode

Period

All Keyboard & mouse Controller Touch

All modes

All time Chapter 7 · Season 5

Overview Tournaments Playlists Seasons

Overview

FNCS rating: official events over the last year, 1.00 is the average lobby level. Rating = 0.3 × impact + 0.25 × K/D + 0.3 × points per match + 0.15 × survival; impact = 0.5 × kills + 0.35 × damage + 0.15 × damage trade, all relative to the lobby. In duos and trios Epic gives team numbers, so each member gets an equal share. Epic gives no damage for Divisional Cup, so it shows a dash.
Frame and number color is the stat level: red — low, yellow — average, green — above average, purple — far above (like the Unreal rank). Thresholds are a ROSTERA estimate from typical Fortnite tracker values (K/D around 1 and 2–5% wins is an average player), not Epic data; season counters have their own, lower thresholds.
Peak is the highest rank of the season, final is the rank at the season end (Epic data).
Matches may be grouped: Epic does not return single matches, a session is what changed between two profile refreshes.

How it is calculated

Epic does not report deaths, so K/D = kills ÷ (matches − wins).
The mode is inferred from Epic's playlist code — a heuristic, rare modes end up in “Other”.
Win % = wins ÷ matches × 100.
Kills per match = kills ÷ matches.
Time played is the Epic “minutes played” counter per playlist and input. For many matches from Fortnite’s early years Epic did not record time (under a minute per match) — for those, time is filled in with the player’s own average where time was recorded (excluding Creative). Creative and Playground count toward total time.
No zeros for unknowns: with no matches, ratios are not calculated.

Where these numbers come from

From the source (api-fortnite.com): matches, wins, kills, time played, last played.
Calculated by ROSTERA: win %, K/D, kills per match, modes from playlist codes, changes between snapshots.
Stored by the site: stat snapshots and name history since Nov 8, 2026
Season numbers and dates come from the API, names from a ROSTERA fallback list.

No stats collected yet.

Try a different query or reset the filters.

Ranks

Ranks are not loaded yet — they will appear after the next profile refresh.

Modes

No mode matches for the selected period.

Last 7 days

Period stats are not loaded yet — they will appear after the next profile refresh.

Last 30 days

Period stats are not loaded yet — they will appear after the next profile refresh.

Recent activity

History since Nov 8, 2026

No changes yet: at least two profile refreshes with new matches are needed.