| Heartnette vs King | 16–11 | 59.26% |
| Heartnette vs Victor | 9–18 | 33.33% |
| Heartnette vs Reina | 20–5 | 80.00% |
| Heartnette vs Kazuya | 13–11 | 54.17% |
| Heartnette vs Jin | 6–13 | 31.58% |
| Heartnette vs Azucena | 11–7 | 61.11% |
| Heartnette vs Steve | 11–6 | 64.71% |
| Heartnette vs Jun | 9–8 | 52.94% |
| Heartnette vs Lili | 6–8 | 42.86% |
| Heartnette vs Dragunov | 7–6 | 53.85% |
| Heartnette vs Devil Jin | 4–6 | 40.00% |
| Heartnette vs Yoshimitsu | 4–5 | 44.44% |
| Heartnette vs Asuka | 5–4 | 55.56% |
| Heartnette vs Shaheen | 5–3 | 62.50% |
| Heartnette vs Lars | 4–3 | 57.14% |
| Heartnette vs Lee | 3–3 | 50.00% |
| Heartnette vs Eddy | 1–5 | 16.67% |
| Heartnette vs Xiaoyu | 4–1 | 80.00% |
| Heartnette vs Bryan | 3–2 | 60.00% |
| Heartnette vs Feng | 1–4 | 20.00% |
| Heartnette vs Heihachi | 5–0 | 100.00% |
| Heartnette vs Law | 4–0 | 100.00% |
| Heartnette vs Leo | 2–2 | 50.00% |
| Heartnette vs Alisa | 4–0 | 100.00% |
| Heartnette vs Hwoarang | 3–0 | 100.00% |
| Heartnette vs Jack-8 | 2–1 | 66.67% |
| Heartnette vs Nina | 1–2 | 33.33% |
| Heartnette vs Claudio | 0–2 | 0.00% |
| Heartnette vs Kuma | 0–2 | 0.00% |
| Heartnette vs Lidia | 0–2 | 0.00% |
| Heartnette vs Paul | 1–0 | 100.00% |
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.