| MERCILESS vs Reina | 113–108 | 51.13% |
| MERCILESS vs Kazuya | 63–75 | 45.65% |
| MERCILESS vs Jin | 52–78 | 40.00% |
| MERCILESS vs King | 44–55 | 44.44% |
| MERCILESS vs Dragunov | 33–47 | 41.25% |
| MERCILESS vs Bryan | 30–45 | 40.00% |
| MERCILESS vs Steve | 33–41 | 44.59% |
| MERCILESS vs Law | 20–33 | 37.74% |
| MERCILESS vs Eddy | 27–21 | 56.25% |
| MERCILESS vs Hwoarang | 17–29 | 36.96% |
| MERCILESS vs Lee | 15–21 | 41.67% |
| MERCILESS vs Jun | 15–20 | 42.86% |
| MERCILESS vs Yoshimitsu | 14–20 | 41.18% |
| MERCILESS vs Heihachi | 14–20 | 41.18% |
| MERCILESS vs Nina | 15–17 | 46.88% |
| MERCILESS vs Lili | 13–16 | 44.83% |
| MERCILESS vs Paul | 11–17 | 39.29% |
| MERCILESS vs Devil Jin | 10–17 | 37.04% |
| MERCILESS vs Azucena | 11–16 | 40.74% |
| MERCILESS vs Victor | 14–10 | 58.33% |
| MERCILESS vs Lars | 9–13 | 40.91% |
| MERCILESS vs Shaheen | 13–9 | 59.09% |
| MERCILESS vs Asuka | 14–7 | 66.67% |
| MERCILESS vs Feng | 6–15 | 28.57% |
| MERCILESS vs Alisa | 6–14 | 30.00% |
| MERCILESS vs Claudio | 11–8 | 57.89% |
| MERCILESS vs Anna | 7–12 | 36.84% |
| MERCILESS vs Kuma | 8–9 | 47.06% |
| MERCILESS vs Armor King | 10–6 | 62.50% |
| MERCILESS vs Jack-8 | 3–11 | 21.43% |
| MERCILESS vs Leo | 6–6 | 50.00% |
| MERCILESS vs Leroy | 4–6 | 40.00% |
| MERCILESS vs Fahkumram | 4–5 | 44.44% |
| MERCILESS vs Zafina | 1–7 | 12.50% |
| MERCILESS vs Raven | 4–3 | 57.14% |
| MERCILESS vs Xiaoyu | 1–4 | 20.00% |
| MERCILESS vs Lidia | 1–3 | 25.00% |
| MERCILESS vs Clive | 2–2 | 50.00% |
| MERCILESS vs Panda | 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.