| Mercka vs Jin | 212–186 | 53.27% |
| Mercka vs Kazuya | 217–157 | 58.02% |
| Mercka vs Hwoarang | 167–143 | 53.87% |
| Mercka vs Bryan | 145–118–1 | 55.13% |
| Mercka vs Heihachi | 112–124 | 47.46% |
| Mercka vs Paul | 118–116 | 50.43% |
| Mercka vs King | 123–107 | 53.48% |
| Mercka vs Reina | 115–106 | 52.04% |
| Mercka vs Law | 117–103 | 53.18% |
| Mercka vs Steve | 123–97 | 55.91% |
| Mercka vs Dragunov | 116–99 | 53.95% |
| Mercka vs Yoshimitsu | 98–81 | 54.75% |
| Mercka vs Devil Jin | 92–68 | 57.50% |
| Mercka vs Lili | 86–70 | 55.13% |
| Mercka vs Jun | 86–63 | 57.72% |
| Mercka vs Eddy | 76–72–1 | 51.35% |
| Mercka vs Lars | 65–71 | 47.79% |
| Mercka vs Lidia | 57–75 | 43.18% |
| Mercka vs Lee | 62–64 | 49.21% |
| Mercka vs Asuka | 67–52–1 | 56.30% |
| Mercka vs Azucena | 66–52 | 55.93% |
| Mercka vs Xiaoyu | 61–53 | 53.51% |
| Mercka vs Feng | 57–57 | 50.00% |
| Mercka vs Clive | 53–56 | 48.62% |
| Mercka vs Nina | 56–49 | 53.33% |
| Mercka vs Victor | 53–43 | 55.21% |
| Mercka vs Fahkumram | 47–48 | 49.47% |
| Mercka vs Jack-8 | 53–40 | 56.99% |
| Mercka vs Alisa | 49–43 | 53.26% |
| Mercka vs Raven | 51–38 | 57.30% |
| Mercka vs Anna | 44–35 | 55.70% |
| Mercka vs Armor King | 35–41 | 46.05% |
| Mercka vs Leroy | 32–41 | 43.84% |
| Mercka vs Leo | 31–32 | 49.21% |
| Mercka vs Claudio | 31–32 | 49.21% |
| Mercka vs Zafina | 26–24 | 52.00% |
| Mercka vs Shaheen | 26–15 | 63.41% |
| Mercka vs Miary Zo | 17–22 | 43.59% |
| Mercka vs Kuma | 19–17 | 52.78% |
| Mercka vs Panda | 17–10 | 62.96% |
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.