| MmBalls vs Xiaoyu | 10–9 | 52.63% |
| MmBalls vs Reina | 8–10 | 44.44% |
| MmBalls vs Hwoarang | 8–7 | 53.33% |
| MmBalls vs Lidia | 9–3 | 75.00% |
| MmBalls vs Paul | 1–8 | 11.11% |
| MmBalls vs King | 5–4 | 55.56% |
| MmBalls vs Steve | 2–6 | 25.00% |
| MmBalls vs Azucena | 4–4 | 50.00% |
| MmBalls vs Lili | 5–2 | 71.43% |
| MmBalls vs Alisa | 3–3 | 50.00% |
| MmBalls vs Law | 2–3 | 40.00% |
| MmBalls vs Jin | 0–5 | 0.00% |
| MmBalls vs Devil Jin | 1–4 | 20.00% |
| MmBalls vs Dragunov | 3–2 | 60.00% |
| MmBalls vs Jun | 1–4 | 20.00% |
| MmBalls vs Victor | 1–4 | 20.00% |
| MmBalls vs Nina | 1–3 | 25.00% |
| MmBalls vs Kuma | 1–3 | 25.00% |
| MmBalls vs Leo | 0–3 | 0.00% |
| MmBalls vs Lee | 1–2 | 33.33% |
| MmBalls vs Yoshimitsu | 0–2 | 0.00% |
| MmBalls vs Bryan | 0–2 | 0.00% |
| MmBalls vs Jack-8 | 0–2 | 0.00% |
| MmBalls vs Claudio | 2–0 | 100.00% |
| MmBalls vs Shaheen | 2–0 | 100.00% |
| MmBalls vs Zafina | 2–0 | 100.00% |
| MmBalls vs Raven | 0–2 | 0.00% |
| MmBalls vs Leroy | 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.