| Merciii vs Kazuya | 189–176 | 51.78% |
| Merciii vs Bryan | 169–136 | 55.41% |
| Merciii vs Reina | 137–120 | 53.31% |
| Merciii vs Jin | 115–122 | 48.52% |
| Merciii vs Steve | 117–104 | 52.94% |
| Merciii vs King | 108–104 | 50.94% |
| Merciii vs Lee | 85–99 | 46.20% |
| Merciii vs Law | 82–93 | 46.86% |
| Merciii vs Hwoarang | 79–78 | 50.32% |
| Merciii vs Heihachi | 74–79 | 48.37% |
| Merciii vs Dragunov | 81–71 | 53.29% |
| Merciii vs Paul | 72–75 | 48.98% |
| Merciii vs Devil Jin | 68–78 | 46.58% |
| Merciii vs Lili | 72–71 | 50.35% |
| Merciii vs Lars | 68–63 | 51.91% |
| Merciii vs Azucena | 77–53 | 59.23% |
| Merciii vs Lidia | 51–75 | 40.48% |
| Merciii vs Xiaoyu | 63–52 | 54.78% |
| Merciii vs Asuka | 49–64 | 43.36% |
| Merciii vs Jun | 53–60 | 46.90% |
| Merciii vs Yoshimitsu | 42–68 | 38.18% |
| Merciii vs Leo | 52–55 | 48.60% |
| Merciii vs Feng | 50–44 | 53.19% |
| Merciii vs Jack-8 | 51–41 | 55.43% |
| Merciii vs Victor | 47–45 | 51.09% |
| Merciii vs Nina | 45–40 | 52.94% |
| Merciii vs Raven | 50–35 | 58.82% |
| Merciii vs Claudio | 41–40 | 50.62% |
| Merciii vs Eddy | 37–43 | 46.25% |
| Merciii vs Leroy | 45–32 | 58.44% |
| Merciii vs Zafina | 33–32 | 50.77% |
| Merciii vs Clive | 29–34 | 46.03% |
| Merciii vs Shaheen | 24–35 | 40.68% |
| Merciii vs Alisa | 37–20 | 64.91% |
| Merciii vs Anna | 22–35 | 38.60% |
| Merciii vs Kuma | 27–27 | 50.00% |
| Merciii vs Armor King | 20–26 | 43.48% |
| Merciii vs Fahkumram | 21–14 | 60.00% |
| Merciii vs Panda | 4–14 | 22.22% |
| Merciii vs Miary Zo | 2–8 | 20.00% |
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.