Domestic-league season · Northampton.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 League One | 39 | 2 | 4 | 2935 | 6.81 |
 EFL Trophy | 3 | 0 | 0 | 155 | 6.77 |
Guinness-Walker's current-season form is down 25% on last season (Season 36→27), while his Rating eased 44→42. His peak season for form remains 2024/25 (Season 36).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Northampton · 24th | 39 | 2 | 4 | 6.81 | 42 | 27 |
| 2024/25 | Northampton · 19th | 27 | 1 | 4 | 6.83 | 44 | 36 |
| 2023/24 | Stevenage · 9th | 30 | 0 | 0 | 6.74 | 44 | 17 |
| 2022/23 | Reading · 22nd | 28 | 0 | 1 | 6.74 | 60 | 12 |
| 2021/22 | AFC Wimbledon · 23rd | 28 | 1 | 1 | 6.63 | 43 | 11 |
| 2020/21 | AFC Wimbledon · 19th | 31 | 1 | 2 | 6.83 | 46 | 19 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
N. Guinness-Walker is a 26-year-old full-back at Northampton, rated 41.8 overall by Field Insider's model, ranking 187th of 482 in the League One. In his prime years, he has been a regular starter this season (72.5% of available minutes). His defensive output reads 3.8 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Guinness-Walker.
Judged on this season alone, Guinness-Walker graded 27 — a strong campaign that ranks top 30% of the 79 full-backs in the League One, on 7 clean sheets and 3.802 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 36 → 27). Over the 6 seasons on record his form has trended upward, peaking in 2024/25.
On long-term talent our Rating reads 42, top 36% of the 79 full-backs in the League One. At 26 Guinness-Walker is in his prime years, and a market index of 25.9 reflects that trajectory.
Below his 2024/25 peak but holding a solid level — the platform for a return is there.
3.8 tackles, blocks & interceptions per 90 — solid defensive volume, with 7 clean sheets across 39 appearances. Doing that for a relegation-threatened side (24th 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 2 goals and 4 assists — a useful bonus from the back.
With a Rating of 41.8, Guinness-Walker carries the 28th-highest potential of the full-backs in the League One (top 36%), and he is posting that for a relegation-threatened side (Northampton finished 24th of 24) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as solid defensive volume (3.8 tackles, blocks & interceptions per 90). In the prime window — at or near peak market value, so the next two seasons are the ones to cash in or build around.
Generated from Field Insider's rating model · AI-written analysis to follow.
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 (~26), then tapers with age. At 26, Guinness-Walker sits on 25.9, at or near its peak. The blue line is Guinness-Walker's projected Rating — 41.8 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.
No transfer news found for this player.
