Johnston's current-season form is level with last season (Season 17→17), while his Rating held around 42. His peak season for form remains 2023/24 (Season 18).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Peterborough · 13th	2	0	0	6.9	42	17
2025/26	Peterborough · 18th	26	0	1	6.72	42	17
2024/25	Peterborough · 18th	20	0	0	6.76	41	10
2024/25	Fleetwood Town · 14th	19	1	1	6.96	31	16
2023/24	Fleetwood Town · 22nd	33	1	1	6.77	46	18
2022/23	Fleetwood Town · 13th	23	1	0	6.62	44	15

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 2 earlier seasons and 1 youth-team spell in the full career.

Northern Ireland · international

Side	Apps	G
Northern Ireland U21	12	1
Northern Ireland U17	6	0

Career caps & goals — tournament breakdown in the full career.

Scout report

Squad depthCentral midfielder

C. Johnston is a 24-year-old central midfielder at Peterborough, rated 42.1 overall by Field Insider's model. An emerging talent, he has been a rotation option this season (48% of available minutes). His defensive output reads 3.31 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Johnston.

On the season, Johnston graded 16 for current form (age-blind), on 0 goals, 1 assist and 3.306 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 17 → 17). Over the 6 seasons on record his form has trended upward, peaking in 2023/24.

On long-term talent our Rating reads 42. At 24 Johnston is in his prime years, and a market index of 9.4 reflects that trajectory.

From the career report

Read the full career report →

Johnston is operating at his career peak — the 2023/24 level is the level.

Peak: 2023/24Holding levelRemarkably consistentStepped up 2025/26

42.1

Ratingi

developing / rotation level

15.6

Seasoni

below regular-starter level

48%

Minutes

rotation minutes

3.31

Def. actions / 90

moderate defensive volume

Output in context · Peterborough finished 18th of 24 · a lower-table side

Apps

3.31

Def. / 90

Tackles

Interceptions

Clean sheets

3.31 tackles, blocks & interceptions per 90 — moderate defensive volume, with 5 clean sheets across 26 appearances. Doing that for a lower-table side (18th of 24) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight. Going forward he chipped in 0 goals and 1 assist — a useful bonus from the back.

Watch points

Game time. Only 48% of available minutes — needs a settled run to prove the level.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 42.1 overall — developing / rotation level. Defensively he reads as moderate defensive volume (3.31 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead.

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

Per 90 & availability

Minutes played %48%

Available fixtures46 of 46

Goals / 900

Assists / 900.045

Goal contribution / 900.045

Defensive actions / 903.306

Player flow

Goal involvements1

Cards / 900.091

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 (~9), then tapers with age. At 24, Johnston sits on 9.4, at or near its peak. The blue line is Johnston's projected Rating — 42.1 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.

Season statistics

Bars = where he ranks among central midfielders in the League One with 600+ minutes this season.

Shooting

Goals0

Passing

Assists1

Defending

Tackles31

Interceptions31

Blocks11

Yellow/red cards

Yellow cards2

Red cards0

Transfer history

PeterboroughJan 2025 – now

Fleetwood Town(back from loan)Jun 2021 – Jan 2025

FFarsley Celtic FC(on loan)Oct 2020 – Jun 2021

Fleetwood Townuntil Oct 2020

About C. Johnston

Carl Robert Johnston is a 24-year-old central midfielder who plays for Peterborough, born on May 29, 2002 in Belfast, standing 175 cm tall. He is from Northern Ireland. Peterborough currently sit 13th of 24 in the League One.

This season

In the current season, C. Johnston has made 2 appearances with 0 goals and 0 assists across 180 minutes, with 1 yellow card.

C. Johnston's next match is on August 29, 2026, when Peterborough face Blackpool away in the League One.

Field Insider's view

Field Insider currently rates C. Johnston at 42.1 with a Season form score of 15.6. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 2 career titles — among them the EFL Trophy. Full list in the career record.

Career

Across 8 recorded seasons, C. Johnston has totalled 153 club appearances with 4 goals and 6 assists for 4 different clubs. His busiest campaign came in 2023/24, with 33 appearances for Fleetwood Town.

C. Johnston's career has also included time at Fleetwood Town and FFarsley Celtic FC.

On the international stage, C. Johnston has represented Northern Ireland U21 and Northern Ireland U17 — 18 caps and 1 goal in our records.

Transfer news

No transfer news found for this player.