| Doug Heffernan vs Bryan | 49–29 | 62.82% |
| Doug Heffernan vs King | 24–23 | 51.06% |
| Doug Heffernan vs Steve | 28–18 | 60.87% |
| Doug Heffernan vs Jin | 24–19 | 55.81% |
| Doug Heffernan vs Yoshimitsu | 24–17 | 58.54% |
| Doug Heffernan vs Law | 18–22 | 45.00% |
| Doug Heffernan vs Reina | 20–19 | 51.28% |
| Doug Heffernan vs Kazuya | 19–15 | 55.88% |
| Doug Heffernan vs Lili | 19–15 | 55.88% |
| Doug Heffernan vs Lars | 20–14 | 58.82% |
| Doug Heffernan vs Devil Jin | 18–15 | 54.55% |
| Doug Heffernan vs Dragunov | 20–12 | 62.50% |
| Doug Heffernan vs Hwoarang | 21–10 | 67.74% |
| Doug Heffernan vs Paul | 16–13 | 55.17% |
| Doug Heffernan vs Lee | 17–9 | 65.38% |
| Doug Heffernan vs Heihachi | 13–13 | 50.00% |
| Doug Heffernan vs Jun | 12–12 | 50.00% |
| Doug Heffernan vs Asuka | 6–17 | 26.09% |
| Doug Heffernan vs Zafina | 12–10 | 54.55% |
| Doug Heffernan vs Victor | 15–7 | 68.18% |
| Doug Heffernan vs Azucena | 14–7 | 66.67% |
| Doug Heffernan vs Jack-8 | 11–9 | 55.00% |
| Doug Heffernan vs Leroy | 13–7 | 65.00% |
| Doug Heffernan vs Xiaoyu | 10–9 | 52.63% |
| Doug Heffernan vs Claudio | 12–6 | 66.67% |
| Doug Heffernan vs Feng | 8–9 | 47.06% |
| Doug Heffernan vs Nina | 7–10 | 41.18% |
| Doug Heffernan vs Leo | 8–6 | 57.14% |
| Doug Heffernan vs Lidia | 9–5 | 64.29% |
| Doug Heffernan vs Kuma | 6–7 | 46.15% |
| Doug Heffernan vs Eddy | 8–4 | 66.67% |
| Doug Heffernan vs Alisa | 3–5 | 37.50% |
| Doug Heffernan vs Raven | 2–5 | 28.57% |
| Doug Heffernan vs Shaheen | 4–2 | 66.67% |
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.