| Mercy2k vs King | 300–270 | 52.63% |
| Mercy2k vs Kazuya | 199–269 | 42.52% |
| Mercy2k vs Jin | 227–217 | 51.13% |
| Mercy2k vs Paul | 171–237 | 41.91% |
| Mercy2k vs Bryan | 184–215 | 46.12% |
| Mercy2k vs Law | 158–153 | 50.80% |
| Mercy2k vs Dragunov | 120–142 | 45.80% |
| Mercy2k vs Hwoarang | 88–119 | 42.51% |
| Mercy2k vs Yoshimitsu | 89–103 | 46.35% |
| Mercy2k vs Heihachi | 80–108 | 42.55% |
| Mercy2k vs Armor King | 69–104 | 39.88% |
| Mercy2k vs Steve | 72–95 | 43.11% |
| Mercy2k vs Devil Jin | 48–109 | 30.57% |
| Mercy2k vs Nina | 66–78 | 45.83% |
| Mercy2k vs Azucena | 45–61 | 42.45% |
| Mercy2k vs Reina | 42–63 | 40.00% |
| Mercy2k vs Asuka | 45–53 | 45.92% |
| Mercy2k vs Clive | 41–57 | 41.84% |
| Mercy2k vs Eddy | 40–44 | 47.62% |
| Mercy2k vs Lee | 23–59 | 28.05% |
| Mercy2k vs Feng | 40–39 | 50.63% |
| Mercy2k vs Lili | 28–47 | 37.33% |
| Mercy2k vs Fahkumram | 26–47 | 35.62% |
| Mercy2k vs Claudio | 24–46 | 34.29% |
| Mercy2k vs Victor | 29–39 | 42.65% |
| Mercy2k vs Lars | 29–34 | 46.03% |
| Mercy2k vs Anna | 20–43 | 31.75% |
| Mercy2k vs Alisa | 17–36 | 32.08% |
| Mercy2k vs Jun | 20–33 | 37.74% |
| Mercy2k vs Leroy | 20–31 | 39.22% |
| Mercy2k vs Lidia | 19–26 | 42.22% |
| Mercy2k vs Xiaoyu | 21–23 | 47.73% |
| Mercy2k vs Shaheen | 10–28 | 26.32% |
| Mercy2k vs Jack-8 | 8–24 | 25.00% |
| Mercy2k vs Miary Zo | 12–19 | 38.71% |
| Mercy2k vs Kuma | 6–22 | 21.43% |
| Mercy2k vs Raven | 8–20 | 28.57% |
| Mercy2k vs Leo | 12–14 | 46.15% |
| Mercy2k vs Zafina | 7–15 | 31.82% |
| Mercy2k vs Panda | 3–4 | 42.86% |
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.