J. Kirby

Following his move to Ostersunds FK, Kirby's current-season form is down 64% on last season (Season 22→8), while his Rating eased 20→14. His peak season for form remains 2024/25 (Season 22).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	Ostersunds FK · 12th	25	2	0	6.56	14	8
2024/25	Sandviken · 6th	23	7	0	6.62	20	22

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.

Scout report

Squad depthCentre-forward

J. Kirby is a 30-year-old centre-forward at Ostersunds FK, rated 13.6 overall by Field Insider's model, ranking 148th of 172 in the Superettan. An experienced operator, he has been a fringe squad member this season (33.5% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Kirby.

Judged on this season alone, Kirby graded 8 — a workmanlike campaign that ranks 14th of 16 of the 16 centre-forwards in the Superettan, on 2 goals and 0 assists in 25 appearances (0.199 involvements per 90).

Year-on-year, that's a drop on last season (Season 22 → 8).

On long-term talent our Rating reads 14, 13th of 16 of the 16 centre-forwards in the Superettan. At 30 Kirby is into the veteran stage, where the age curve weighs on the projection, and a market index of 1.5 reflects that trajectory.

From the career report

Read the full career report →

Past his 2024/25 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2024/25Trending down

Current potential13th of 16 centre-forwards · Superettan Current season14th of 16 centre-forwards · Superettan14th-best centre-forward in the Superettan148th in the Superettan · potential13th-highest potential centre-forward in the Superettan

13.6

Ratingi

13th of 16 centre-forwards

8.4

Seasoni

below regular-starter level

33.5%

Minutes

limited game time

0.2

Goal contrib / 90

modest end product

Output in context · Ostersunds FK finished 12th of 16 · a lower-table side

Goals

Assists

G+A

0.08

Goals / app

2 goals in 25 appearances (0.08 per game) — light end product the role wants to see climb.

Watch points

Game time. Only 33.5% of available minutes — needs a settled run to prove the level.
Output. 0.2 contributions per 90 is light for an attacking role — end product needs to climb.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 13.6, Kirby carries the 13th-highest potential of the centre-forwards in the Superettan of 16, and he is posting that for a lower-table side (Ostersunds FK finished 12th of 16) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. In the final third he profiles as a work-in-progress on end product (0.2 goal contributions per 90). Experienced and reliable, but the value curve is easing (1× now → 0.7× projected in three years).

Generated from Field Insider's rating model · AI-written analysis to follow.

Per 90 & availability

Minutes played %33.5%

Available fixtures30 of 30

Goals / 900.199

Assists / 900

Goal contribution / 900.199

Defensive actions / 901.193

Player flow

Goal involvements2

Shot conversion %25

Shot accuracy %66.7

Dribble success %80

Cards / 900.199

Foul involvement / 901.89

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~3), then tapers with age. At 30, Kirby sits on 1.5, past its peak and easing. The blue line is Kirby's projected Rating — 13.6 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.