| Marcio vs King | 220–275–1 | 44.44% |
| Marcio vs Law | 157–197 | 44.35% |
| Marcio vs Jin | 158–175 | 47.45% |
| Marcio vs Steve | 131–142 | 47.99% |
| Marcio vs Heihachi | 112–153 | 42.26% |
| Marcio vs Bryan | 95–162 | 36.96% |
| Marcio vs Eddy | 101–154 | 39.61% |
| Marcio vs Paul | 98–146 | 40.16% |
| Marcio vs Dragunov | 112–127 | 46.86% |
| Marcio vs Hwoarang | 113–118 | 48.92% |
| Marcio vs Kazuya | 104–102 | 50.49% |
| Marcio vs Xiaoyu | 87–87 | 50.00% |
| Marcio vs Feng | 83–90 | 47.98% |
| Marcio vs Armor King | 73–100 | 42.20% |
| Marcio vs Asuka | 69–95 | 42.07% |
| Marcio vs Nina | 73–85 | 46.20% |
| Marcio vs Reina | 57–98 | 36.77% |
| Marcio vs Fahkumram | 71–80 | 47.02% |
| Marcio vs Lili | 55–93 | 37.16% |
| Marcio vs Leroy | 81–65 | 55.48% |
| Marcio vs Jun | 56–71 | 44.09% |
| Marcio vs Azucena | 40–71 | 36.04% |
| Marcio vs Yoshimitsu | 36–68 | 34.62% |
| Marcio vs Lars | 37–66 | 35.92% |
| Marcio vs Anna | 31–69 | 31.00% |
| Marcio vs Victor | 39–60 | 39.39% |
| Marcio vs Clive | 34–65 | 34.34% |
| Marcio vs Devil Jin | 44–53 | 45.36% |
| Marcio vs Lidia | 49–45 | 52.13% |
| Marcio vs Raven | 40–43 | 48.19% |
| Marcio vs Jack-8 | 29–52 | 35.80% |
| Marcio vs Lee | 39–42 | 48.15% |
| Marcio vs Shaheen | 36–37 | 49.32% |
| Marcio vs Claudio | 18–50 | 26.47% |
| Marcio vs Leo | 29–37 | 43.94% |
| Marcio vs Alisa | 23–39 | 37.10% |
| Marcio vs Zafina | 21–35 | 37.50% |
| Marcio vs Miary Zo | 19–29 | 39.58% |
| Marcio vs Panda | 19–23 | 45.24% |
| Marcio vs Kuma | 16–18 | 47.06% |
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.