Harley Mills

Mills's current-season form is level with last season (Season 14→14), while his Rating held around 43. His peak season for form remains 2025/26 (Season 14).

Domestic career

Season	Club	Apps	Match	RTG	Season
2026/27	Peterborough · 13th	1	6	43	14
2025/26	Peterborough · 18th	24	6.85	43	14
2024/25	Enfield TownLoan	8	—	—	—
2023/24	Peterborough · 4th	1	7.2	41	2

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

Scout report

Squad depthCentral defender

Harley Mills is a 22-year-old central defender at Peterborough, rated 43.2 overall by Field Insider's model. An emerging talent, he has been a rotation option this season (42.8% of available minutes). His defensive output reads 3.2 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mills.

On the season, Mills graded 14 for current form (age-blind), on 4 clean sheets and 3.198 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 14 → 14). Over the 3 seasons on record his form has trended upward, peaking in 2025/26.

On long-term talent our Rating reads 43. At 22 Mills is still climbing toward his ceiling, and a market index of 9.2 reflects that trajectory.

43.2

Ratingi

developing / rotation level

13.6

Seasoni

below regular-starter level

42.8%

Minutes

rotation minutes

3.2

Def. actions / 90

moderate defensive volume

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

Apps

3.2

Def. / 90

Tackles

Interceptions

Clean sheets

3.2 tackles, blocks & interceptions per 90 — moderate defensive volume, with 4 clean sheets across 24 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.

Watch points

Game time. Only 42.8% 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 43.2 overall — developing / rotation level. Defensively he reads as moderate defensive volume (3.2 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 1.9×) with the best seasons likely ahead.

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

Per 90 & availability

Minutes played %42.8%

Available fixtures46 of 46

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 903.198

Player flow

Goal involvements0

Cards / 900.254

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 (~10), then tapers with age. At 22, Mills sits on 9.2, still climbing toward its peak. The blue line is Mills's projected Rating — 43.2 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 centre-backs in the League One with 600+ minutes this season.

Shooting

Goals0

Passing

Assists0

Defending

Tackles33

Interceptions21

Blocks9

Yellow/red cards

Yellow cards5

Red cards0

Transfer history

Peterborough(back from loan)Nov 2024 – now

EEnfield Town(on loan)Sept 2024 – Nov 2024

Peterboroughuntil Sept 2024

About Harley Mills

Harley Mills is a 22-year-old centre-back who plays for Peterborough, born on November 3, 2003. He is from England. Peterborough currently sit 13th of 24 in the League One.

This season

In the current season, Harley Mills has made 1 appearances with 0 goals and 0 assists across 90 minutes.

Harley Mills'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 Harley Mills at 43.2 with a Season form score of 13.6. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 5 career titles — among them the EFL Trophy and the U18 Professional Development League Cup. Full list in the career record.

Career

Across 4 recorded seasons, Harley Mills has totalled 36 club appearances with 0 goals and 0 assists for 3 different clubs. His busiest campaign came in 2025/26, with 24 appearances for Peterborough.

Harley Mills's career has also included time at EEnfield Town.

Transfer news

No transfer news found for this player.