| Mephisto vs King | 32–34 | 48.48% |
| Mephisto vs Jin | 32–32 | 50.00% |
| Mephisto vs Bryan | 34–30 | 53.12% |
| Mephisto vs Kazuya | 33–25 | 56.90% |
| Mephisto vs Hwoarang | 31–24 | 56.36% |
| Mephisto vs Lidia | 29–23 | 55.77% |
| Mephisto vs Reina | 27–19 | 58.70% |
| Mephisto vs Heihachi | 25–17 | 59.52% |
| Mephisto vs Law | 22–17 | 56.41% |
| Mephisto vs Clive | 24–13 | 64.86% |
| Mephisto vs Lars | 27–9 | 75.00% |
| Mephisto vs Eddy | 14–22 | 38.89% |
| Mephisto vs Asuka | 22–13 | 62.86% |
| Mephisto vs Paul | 14–20 | 41.18% |
| Mephisto vs Steve | 21–13 | 61.76% |
| Mephisto vs Yoshimitsu | 26–7 | 78.79% |
| Mephisto vs Lee | 17–15 | 53.12% |
| Mephisto vs Nina | 16–15 | 51.61% |
| Mephisto vs Dragunov | 15–15 | 50.00% |
| Mephisto vs Azucena | 14–16 | 46.67% |
| Mephisto vs Jun | 14–12 | 53.85% |
| Mephisto vs Xiaoyu | 16–9 | 64.00% |
| Mephisto vs Jack-8 | 15–8 | 65.22% |
| Mephisto vs Devil Jin | 14–8 | 63.64% |
| Mephisto vs Lili | 14–6 | 70.00% |
| Mephisto vs Leo | 11–9 | 55.00% |
| Mephisto vs Alisa | 11–9 | 55.00% |
| Mephisto vs Feng | 12–7 | 63.16% |
| Mephisto vs Victor | 10–9 | 52.63% |
| Mephisto vs Armor King | 11–8 | 57.89% |
| Mephisto vs Fahkumram | 12–6 | 66.67% |
| Mephisto vs Leroy | 7–9 | 43.75% |
| Mephisto vs Kuma | 9–6 | 60.00% |
| Mephisto vs Zafina | 11–4 | 73.33% |
| Mephisto vs Raven | 10–3 | 76.92% |
| Mephisto vs Claudio | 6–6 | 50.00% |
| Mephisto vs Miary Zo | 8–3 | 72.73% |
| Mephisto vs Anna | 7–3 | 70.00% |
| Mephisto vs Shaheen | 8–1 | 88.89% |
| Mephisto vs Panda | 3–2 | 60.00% |
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.