| Mello vs Jin | 36–23 | 61.02% |
| Mello vs Kazuya | 28–24 | 53.85% |
| Mello vs Heihachi | 25–25 | 50.00% |
| Mello vs King | 20–20 | 50.00% |
| Mello vs Lidia | 26–13 | 66.67% |
| Mello vs Bryan | 17–20 | 45.95% |
| Mello vs Reina | 25–10 | 71.43% |
| Mello vs Steve | 15–16 | 48.39% |
| Mello vs Law | 21–9 | 70.00% |
| Mello vs Yoshimitsu | 13–14 | 48.15% |
| Mello vs Hwoarang | 18–9 | 66.67% |
| Mello vs Nina | 15–8 | 65.22% |
| Mello vs Devil Jin | 12–8 | 60.00% |
| Mello vs Alisa | 13–7 | 65.00% |
| Mello vs Jun | 13–7 | 65.00% |
| Mello vs Paul | 11–8 | 57.89% |
| Mello vs Clive | 14–5 | 73.68% |
| Mello vs Lili | 9–6 | 60.00% |
| Mello vs Dragunov | 7–7 | 50.00% |
| Mello vs Feng | 7–6 | 53.85% |
| Mello vs Victor | 8–5 | 61.54% |
| Mello vs Eddy | 9–4 | 69.23% |
| Mello vs Lee | 7–4 | 63.64% |
| Mello vs Leroy | 4–7 | 36.36% |
| Mello vs Jack-8 | 7–3 | 70.00% |
| Mello vs Raven | 5–5 | 50.00% |
| Mello vs Asuka | 5–4 | 55.56% |
| Mello vs Azucena | 7–2 | 77.78% |
| Mello vs Xiaoyu | 3–5 | 37.50% |
| Mello vs Leo | 5–2 | 71.43% |
| Mello vs Kuma | 3–4 | 42.86% |
| Mello vs Zafina | 4–2 | 66.67% |
| Mello vs Lars | 4–1 | 80.00% |
| Mello vs Claudio | 1–1 | 50.00% |
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.