| heartless vs King | 44–51 | 46.32% |
| heartless vs Hwoarang | 41–39 | 51.25% |
| heartless vs Law | 30–45 | 40.00% |
| heartless vs Kazuya | 35–37 | 48.61% |
| heartless vs Eddy | 27–44 | 38.03% |
| heartless vs Bryan | 26–43 | 37.68% |
| heartless vs Jin | 32–35 | 47.76% |
| heartless vs Steve | 37–24 | 60.66% |
| heartless vs Reina | 30–26 | 53.57% |
| heartless vs Jun | 32–22 | 59.26% |
| heartless vs Dragunov | 24–29 | 45.28% |
| heartless vs Lars | 27–17 | 61.36% |
| heartless vs Lili | 22–21 | 51.16% |
| heartless vs Xiaoyu | 13–23 | 36.11% |
| heartless vs Yoshimitsu | 17–16 | 51.52% |
| heartless vs Heihachi | 23–8 | 74.19% |
| heartless vs Devil Jin | 16–14 | 53.33% |
| heartless vs Leo | 15–15 | 50.00% |
| heartless vs Paul | 12–17 | 41.38% |
| heartless vs Asuka | 13–15 | 46.43% |
| heartless vs Armor King | 15–13 | 53.57% |
| heartless vs Lee | 18–9 | 66.67% |
| heartless vs Nina | 10–12 | 45.45% |
| heartless vs Leroy | 12–10 | 54.55% |
| heartless vs Raven | 12–9 | 57.14% |
| heartless vs Alisa | 10–10 | 50.00% |
| heartless vs Azucena | 8–11 | 42.11% |
| heartless vs Jack-8 | 8–8 | 50.00% |
| heartless vs Victor | 8–8 | 50.00% |
| heartless vs Kuma | 6–9 | 40.00% |
| heartless vs Anna | 9–6 | 60.00% |
| heartless vs Feng | 11–3 | 78.57% |
| heartless vs Claudio | 8–3 | 72.73% |
| heartless vs Lidia | 5–6 | 45.45% |
| heartless vs Miary Zo | 5–6 | 45.45% |
| heartless vs Clive | 6–3 | 66.67% |
| heartless vs Fahkumram | 3–6 | 33.33% |
| heartless vs Zafina | 4–4 | 50.00% |
| heartless vs Panda | 0–3 | 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.