| Heff_TheDon vs Jin | 31–37 | 45.59% |
| Heff_TheDon vs Steve | 28–32 | 46.67% |
| Heff_TheDon vs Reina | 31–29 | 51.67% |
| Heff_TheDon vs King | 31–27 | 53.45% |
| Heff_TheDon vs Bryan | 22–31 | 41.51% |
| Heff_TheDon vs Kazuya | 24–29 | 45.28% |
| Heff_TheDon vs Nina | 23–16 | 58.97% |
| Heff_TheDon vs Lidia | 15–24 | 38.46% |
| Heff_TheDon vs Heihachi | 23–16 | 58.97% |
| Heff_TheDon vs Law | 14–20 | 41.18% |
| Heff_TheDon vs Hwoarang | 18–14 | 56.25% |
| Heff_TheDon vs Victor | 21–11 | 65.62% |
| Heff_TheDon vs Eddy | 11–21 | 34.38% |
| Heff_TheDon vs Asuka | 13–15 | 46.43% |
| Heff_TheDon vs Lee | 14–12 | 53.85% |
| Heff_TheDon vs Devil Jin | 12–12 | 50.00% |
| Heff_TheDon vs Leroy | 12–12 | 50.00% |
| Heff_TheDon vs Jun | 11–12 | 47.83% |
| Heff_TheDon vs Yoshimitsu | 14–8 | 63.64% |
| Heff_TheDon vs Lili | 13–9 | 59.09% |
| Heff_TheDon vs Miary Zo | 12–9 | 57.14% |
| Heff_TheDon vs Azucena | 8–12 | 40.00% |
| Heff_TheDon vs Armor King | 10–10 | 50.00% |
| Heff_TheDon vs Paul | 10–9 | 52.63% |
| Heff_TheDon vs Dragunov | 11–8 | 57.89% |
| Heff_TheDon vs Xiaoyu | 9–8 | 52.94% |
| Heff_TheDon vs Feng | 4–10 | 28.57% |
| Heff_TheDon vs Shaheen | 5–8 | 38.46% |
| Heff_TheDon vs Kuma | 5–8 | 38.46% |
| Heff_TheDon vs Jack-8 | 5–7 | 41.67% |
| Heff_TheDon vs Leo | 2–10 | 16.67% |
| Heff_TheDon vs Lars | 3–8 | 27.27% |
| Heff_TheDon vs Alisa | 5–5 | 50.00% |
| Heff_TheDon vs Claudio | 4–4 | 50.00% |
| Heff_TheDon vs Fahkumram | 4–4 | 50.00% |
| Heff_TheDon vs Raven | 2–5 | 28.57% |
| Heff_TheDon vs Clive | 4–3 | 57.14% |
| Heff_TheDon vs Zafina | 3–2 | 60.00% |
| Heff_TheDon vs Panda | 0–2 | 0.00% |
| Heff_TheDon vs Anna | 2–0 | 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.