| Balls Mahony vs King | 25–18 | 58.14% |
| Balls Mahony vs Jin | 22–19 | 53.66% |
| Balls Mahony vs Eddy | 13–19 | 40.62% |
| Balls Mahony vs Hwoarang | 12–18 | 40.00% |
| Balls Mahony vs Law | 20–9 | 68.97% |
| Balls Mahony vs Dragunov | 13–15 | 46.43% |
| Balls Mahony vs Jun | 15–10 | 60.00% |
| Balls Mahony vs Xiaoyu | 11–12 | 47.83% |
| Balls Mahony vs Kazuya | 11–12 | 47.83% |
| Balls Mahony vs Lili | 9–14 | 39.13% |
| Balls Mahony vs Azucena | 11–12 | 47.83% |
| Balls Mahony vs Bryan | 14–8 | 63.64% |
| Balls Mahony vs Steve | 7–13 | 35.00% |
| Balls Mahony vs Reina | 8–9 | 47.06% |
| Balls Mahony vs Leo | 6–9 | 40.00% |
| Balls Mahony vs Lars | 5–10 | 33.33% |
| Balls Mahony vs Yoshimitsu | 8–6 | 57.14% |
| Balls Mahony vs Alisa | 7–5 | 58.33% |
| Balls Mahony vs Lee | 2–10 | 16.67% |
| Balls Mahony vs Paul | 6–5 | 54.55% |
| Balls Mahony vs Asuka | 5–5 | 50.00% |
| Balls Mahony vs Kuma | 3–7 | 30.00% |
| Balls Mahony vs Devil Jin | 5–4 | 55.56% |
| Balls Mahony vs Nina | 3–6 | 33.33% |
| Balls Mahony vs Victor | 3–6 | 33.33% |
| Balls Mahony vs Raven | 2–5 | 28.57% |
| Balls Mahony vs Jack-8 | 2–4 | 33.33% |
| Balls Mahony vs Claudio | 2–3 | 40.00% |
| Balls Mahony vs Feng | 2–2 | 50.00% |
| Balls Mahony vs Shaheen | 3–1 | 75.00% |
| Balls Mahony vs Leroy | 1–3 | 25.00% |
| Balls Mahony vs Panda | 2–1 | 66.67% |
| Balls Mahony vs Zafina | 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.