| Mario_Quadros vs Kazuya | 186–232 | 44.50% |
| Mario_Quadros vs King | 180–186 | 49.18% |
| Mario_Quadros vs Jin | 170–176 | 49.13% |
| Mario_Quadros vs Bryan | 122–146 | 45.52% |
| Mario_Quadros vs Reina | 120–120 | 50.00% |
| Mario_Quadros vs Dragunov | 111–126 | 46.84% |
| Mario_Quadros vs Eddy | 116–115 | 50.22% |
| Mario_Quadros vs Law | 116–106 | 52.25% |
| Mario_Quadros vs Hwoarang | 88–128 | 40.74% |
| Mario_Quadros vs Xiaoyu | 117–93 | 55.71% |
| Mario_Quadros vs Steve | 108–83 | 56.54% |
| Mario_Quadros vs Heihachi | 87–94 | 48.07% |
| Mario_Quadros vs Lili | 96–84 | 53.33% |
| Mario_Quadros vs Asuka | 80–78 | 50.63% |
| Mario_Quadros vs Paul | 73–78 | 48.34% |
| Mario_Quadros vs Alisa | 70–71 | 49.65% |
| Mario_Quadros vs Lee | 56–82 | 40.58% |
| Mario_Quadros vs Jun | 59–70 | 45.74% |
| Mario_Quadros vs Yoshimitsu | 50–76 | 39.68% |
| Mario_Quadros vs Leroy | 64–61 | 51.20% |
| Mario_Quadros vs Azucena | 49–69 | 41.53% |
| Mario_Quadros vs Feng | 55–59 | 48.25% |
| Mario_Quadros vs Nina | 52–57 | 47.71% |
| Mario_Quadros vs Lars | 56–45 | 55.45% |
| Mario_Quadros vs Victor | 40–43 | 48.19% |
| Mario_Quadros vs Anna | 40–43 | 48.19% |
| Mario_Quadros vs Devil Jin | 33–48 | 40.74% |
| Mario_Quadros vs Jack-8 | 38–39 | 49.35% |
| Mario_Quadros vs Lidia | 41–35 | 53.95% |
| Mario_Quadros vs Leo | 29–42 | 40.85% |
| Mario_Quadros vs Claudio | 35–32 | 52.24% |
| Mario_Quadros vs Armor King | 28–39 | 41.79% |
| Mario_Quadros vs Fahkumram | 33–33 | 50.00% |
| Mario_Quadros vs Raven | 34–27 | 55.74% |
| Mario_Quadros vs Clive | 26–34 | 43.33% |
| Mario_Quadros vs Shaheen | 24–30 | 44.44% |
| Mario_Quadros vs Zafina | 21–26 | 44.68% |
| Mario_Quadros vs Miary Zo | 11–12 | 47.83% |
| Mario_Quadros vs Kuma | 8–14 | 36.36% |
| Mario_Quadros vs Panda | 5–10 | 33.33% |
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.