| Harlequin vs King | 38–41 | 48.10% |
| Harlequin vs Kazuya | 32–36 | 47.06% |
| Harlequin vs Reina | 36–32 | 52.94% |
| Harlequin vs Jin | 21–37 | 36.21% |
| Harlequin vs Steve | 22–22 | 50.00% |
| Harlequin vs Lili | 22–16 | 57.89% |
| Harlequin vs Azucena | 17–21 | 44.74% |
| Harlequin vs Heihachi | 15–21 | 41.67% |
| Harlequin vs Asuka | 15–20 | 42.86% |
| Harlequin vs Dragunov | 11–19 | 36.67% |
| Harlequin vs Hwoarang | 11–17 | 39.29% |
| Harlequin vs Bryan | 14–10 | 58.33% |
| Harlequin vs Xiaoyu | 17–6 | 73.91% |
| Harlequin vs Nina | 11–11 | 50.00% |
| Harlequin vs Devil Jin | 9–12 | 42.86% |
| Harlequin vs Yoshimitsu | 9–10 | 47.37% |
| Harlequin vs Lee | 7–11 | 38.89% |
| Harlequin vs Eddy | 7–11 | 38.89% |
| Harlequin vs Paul | 12–5 | 70.59% |
| Harlequin vs Law | 11–6 | 64.71% |
| Harlequin vs Victor | 7–10 | 41.18% |
| Harlequin vs Jack-8 | 5–10 | 33.33% |
| Harlequin vs Clive | 8–7 | 53.33% |
| Harlequin vs Lidia | 4–9 | 30.77% |
| Harlequin vs Alisa | 6–5 | 54.55% |
| Harlequin vs Leroy | 5–6 | 45.45% |
| Harlequin vs Jun | 8–3 | 72.73% |
| Harlequin vs Feng | 4–6 | 40.00% |
| Harlequin vs Lars | 6–4 | 60.00% |
| Harlequin vs Leo | 3–6 | 33.33% |
| Harlequin vs Raven | 3–5 | 37.50% |
| Harlequin vs Claudio | 2–5 | 28.57% |
| Harlequin vs Kuma | 1–6 | 14.29% |
| Harlequin vs Armor King | 2–5 | 28.57% |
| Harlequin vs Anna | 1–5 | 16.67% |
| Harlequin vs Shaheen | 0–2 | 0.00% |
| Harlequin vs Fahkumram | 0–1 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.