| Mello vs King | 64–100 | 39.02% |
| Mello vs Reina | 60–93 | 39.22% |
| Mello vs Lidia | 69–81 | 46.00% |
| Mello vs Kazuya | 48–96 | 33.33% |
| Mello vs Steve | 45–99 | 31.25% |
| Mello vs Jin | 48–68 | 41.38% |
| Mello vs Hwoarang | 35–75 | 31.82% |
| Mello vs Azucena | 35–62 | 36.08% |
| Mello vs Jun | 23–68 | 25.27% |
| Mello vs Dragunov | 22–64 | 25.58% |
| Mello vs Asuka | 30–47 | 38.96% |
| Mello vs Bryan | 18–55 | 24.66% |
| Mello vs Lili | 27–46 | 36.99% |
| Mello vs Law | 22–48 | 31.43% |
| Mello vs Victor | 25–43 | 36.76% |
| Mello vs Eddy | 15–52 | 22.39% |
| Mello vs Nina | 24–40 | 37.50% |
| Mello vs Lars | 21–41 | 33.87% |
| Mello vs Alisa | 19–33 | 36.54% |
| Mello vs Paul | 18–30 | 37.50% |
| Mello vs Lee | 17–31 | 35.42% |
| Mello vs Leroy | 16–28 | 36.36% |
| Mello vs Yoshimitsu | 12–29 | 29.27% |
| Mello vs Heihachi | 17–23 | 42.50% |
| Mello vs Devil Jin | 15–23 | 39.47% |
| Mello vs Xiaoyu | 16–21 | 43.24% |
| Mello vs Leo | 15–19 | 44.12% |
| Mello vs Kuma | 9–22 | 29.03% |
| Mello vs Feng | 9–17 | 34.62% |
| Mello vs Shaheen | 7–16 | 30.43% |
| Mello vs Zafina | 9–12 | 42.86% |
| Mello vs Raven | 12–9 | 57.14% |
| Mello vs Jack-8 | 2–18 | 10.00% |
| Mello vs Claudio | 9–9 | 50.00% |
| Mello vs Miary Zo | 5–3 | 62.50% |
| Mello vs Armor King | 3–2 | 60.00% |
| Mello vs Clive | 1–3 | 25.00% |
| Mello vs Panda | 0–1 | 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.