Domestic-league season · Ulsan Hyundai FC.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 K League 1 | 26 | 1 | 0 | 670 | 6.81 |
 AFC Champions League Elite | 8 | 1 | 0 | 292 | 6.66 |
 FA Cup | 1 | 1 | 0 | 68 | — |
 FIFA Club World Cup | 2 | 0 | 0 | 22 | 6.26 |
Following his move to Ulsan Hyundai FC, Yool's current-season form is down 60% on last season (Season 10→4), while his Rating eased 47→41. His peak season for form remains 2021/22 (Season 10).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Ulsan Hyundai FC · 3rd | 26 | 1 | 0 | 6.81 | 41 | 4 |
| 2024/25 | Gwangju FC · 3rd | 32 | 2 | 0 | 6.93 | 47 | 10 |
| 2023/24 | Gwangju FC · 3rd | 15 | 1 | 2 | 6.54 | 45 | 7 |
| 2021/22 | Gwangju FC · 3rd | 18 | 2 | 1 | 6.69 | 47 | 10 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
Heo Yool is a 25-year-old centre-forward at Ulsan Hyundai FC, rated 40.8 overall by Field Insider's model, ranking 26th of 148 in the K League 1. In his prime years, he has been a fringe squad member this season (19.6% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Yool.
Judged on this season alone, Yool graded 4 — a workmanlike campaign that ranks 22nd of 22 of the 22 centre-forwards in the K League 1, on 1 goal and 0 assists in 26 appearances (0.134 involvements per 90).
Year-on-year, that's a drop on last season (Season 10 → 4). Over the 4 seasons on record his form has drifted down, peaking in 2021/22.
On long-term talent our Rating reads 41, top 14% of the 22 centre-forwards in the K League 1. At 25 Yool is in his prime years, and a market index of 27.7 reflects that trajectory.
Below his 2021/22 peak but holding a solid level — the platform for a return is there.
1 goal in 26 appearances (0.04 per game) — light end product the role wants to see climb.
With a Rating of 40.8, Yool carries the 3rd-highest potential of the centre-forwards in the K League 1 of 22 — though on just 26 appearances this season, so the standing rests on a small sample. In the final third he profiles as a work-in-progress on end product (0.13 goal contributions 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.
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 (~28), then tapers with age. At 25, Yool sits on 27.7, at or near its peak. The blue line is Yool's projected Rating — 40.8 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.
