Dong Hyun Kim vs.
Sean Pierson
Two full careers, measured against each man's own division and against each other — the tape, the read, and every number behind them.
The men, measured.
Frame, age, layoff and recent form — green marks the edge on each line.
What the numbers say.
Scouting notes, auto-generated — only stats deviating more than 25% from the division median make this list. No narratives, just deviations.
Who did they actually beat?
Full-career records re-graded by the tier of opposition — the same grading the Contender Series pick model uses. Records built on tier-4 competition are worth less than records built on killers.
Dong Hyun Kim
Full career not yet synced for Dong Hyun Kim — tier grading appears once their record documentation lands (refreshes weekly).
In the UFC: 7-4 against opponents who walked in above .500 · avg opponent walk-in record +1.8 wins over .500
Sean Pierson
Full career not yet synced for Sean Pierson — tier grading appears once their record documentation lands (refreshes weekly).
In the UFC: 1-2 against opponents who walked in above .500 · avg opponent walk-in record +1.5 wins over .500
The stand-up battle.
Career totals; norms are the medians of each man's own division.
Significant strikes — landed & absorbed
Where the fight happens (share of sig. strike attempts)
Dong Hyun Kim
Distance 54.3% (norm 81.2%) · Clinch 12.3% (norm 9.4%) · Ground 33.4% (norm 8.1%)
Sean Pierson
Distance 86.9% (norm 81.2%) · Clinch 8.4% (norm 9.4%) · Ground 4.7% (norm 8.1%)
What they throw (share of sig. strike attempts by target)
Dong Hyun Kim
Head 85.5% (norm 78.2%) · Body 6.6% (norm 12.4%) · Legs 7.9% (norm 8.4%)
Sean Pierson
Head 84.8% (norm 78.2%) · Body 9.5% (norm 12.4%) · Legs 5.7% (norm 8.4%)
Zone accuracy matrix Landed / attempted by zone
Green ≥ division median, red below. UFCStats tracks position and target as separate splits.
| Zone | Kim L/A | Acc | Welterweight med | Pierson L/A | Acc | Welterweight med |
|---|---|---|---|---|---|---|
| BY POSITION | ||||||
| At distance | 155 / 470 | 33.0% | 38.6% | 228 / 650 | 35.1% | 38.6% |
| In the clinch | 84 / 106 | 79.2% | 67.8% | 47 / 63 | 74.6% | 67.8% |
| On the ground | 185 / 289 | 64.0% | 67.2% | 23 / 35 | 65.7% | 67.2% |
| BY TARGET | ||||||
| To the head | 327 / 740 | 44.2% | 37.2% | 210 / 634 | 33.1% | 37.2% |
| To the body | 44 / 57 | 77.2% | 70.7% | 55 / 71 | 77.5% | 70.7% |
| To the legs | 53 / 68 | 77.9% | 82.9% | 33 / 43 | 76.7% | 82.9% |
Zones with fewer than 25 attempts are marked "too few to rate". Each fighter is measured against the median of leaderboard-eligible fighters in his own division (Welterweight: 182 fighters · Welterweight: 182 fighters).
What lands on them Opponents' accuracy against each man
Green ≤ division median — harder to hit than the typical man in his division.
| Zone | vs Kim L/A | Opp acc | Welterweight med | vs Pierson L/A | Opp acc | Welterweight med |
|---|---|---|---|---|---|---|
| BY POSITION | ||||||
| At distance | 201 / 646 | 31.1% | 39.0% | 227 / 721 | 31.5% | 39.0% |
| In the clinch | 142 / 214 | 66.4% | 68.9% | 35 / 51 | 68.6% | 68.9% |
| On the ground | 34 / 50 | 68.0% | 68.0% | 28 / 47 | 59.6% | 68.0% |
| BY TARGET | ||||||
| To the head | 189 / 636 | 29.7% | 35.6% | 185 / 674 | 27.4% | 35.6% |
| To the body | 109 / 166 | 65.7% | 69.6% | 56 / 81 | 69.1% | 69.6% |
| To the legs | 79 / 108 | 73.1% | 82.1% | 49 / 64 | 76.6% | 82.1% |
The ground war.
Takedowns, control and submissions — career totals with each man's per-minute rates against his division norm.
Bars compare the two men's rates (per-minute / per-15 figures), not raw totals — Kim has more cage time on record.