| Mondello vs King | 14–12 | 53.85% |
| Mondello vs Reina | 8–18 | 30.77% |
| Mondello vs Hwoarang | 7–10 | 41.18% |
| Mondello vs Lili | 7–9 | 43.75% |
| Mondello vs Jin | 7–8 | 46.67% |
| Mondello vs Eddy | 4–10 | 28.57% |
| Mondello vs Paul | 4–9 | 30.77% |
| Mondello vs Steve | 4–9 | 30.77% |
| Mondello vs Asuka | 3–10 | 23.08% |
| Mondello vs Yoshimitsu | 2–10 | 16.67% |
| Mondello vs Lars | 6–5 | 54.55% |
| Mondello vs Jack-8 | 2–8 | 20.00% |
| Mondello vs Law | 5–4 | 55.56% |
| Mondello vs Bryan | 6–3 | 66.67% |
| Mondello vs Kazuya | 4–5 | 44.44% |
| Mondello vs Jun | 4–5 | 44.44% |
| Mondello vs Azucena | 5–4 | 55.56% |
| Mondello vs Nina | 2–6 | 25.00% |
| Mondello vs Leroy | 1–7 | 12.50% |
| Mondello vs Claudio | 2–5 | 28.57% |
| Mondello vs Zafina | 4–2 | 66.67% |
| Mondello vs Leo | 4–1 | 80.00% |
| Mondello vs Victor | 0–5 | 0.00% |
| Mondello vs Xiaoyu | 2–2 | 50.00% |
| Mondello vs Devil Jin | 1–2 | 33.33% |
| Mondello vs Dragunov | 2–1 | 66.67% |
| Mondello vs Alisa | 2–1 | 66.67% |
| Mondello vs Kuma | 1–2 | 33.33% |
| Mondello vs Raven | 3–0 | 100.00% |
| Mondello vs Feng | 0–2 | 0.00% |
| Mondello vs Shaheen | 1–1 | 50.00% |
| Mondello vs Lee | 0–2 | 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.