| Socialmallard vs Bryan | 311–273 | 53.25% |
| Socialmallard vs King | 249–315 | 44.15% |
| Socialmallard vs Kazuya | 277–266 | 51.01% |
| Socialmallard vs Steve | 230–241 | 48.83% |
| Socialmallard vs Hwoarang | 205–251 | 44.96% |
| Socialmallard vs Reina | 217–233–1 | 48.22% |
| Socialmallard vs Law | 189–240 | 44.06% |
| Socialmallard vs Jin | 189–233 | 44.79% |
| Socialmallard vs Lili | 198–161–1 | 55.15% |
| Socialmallard vs Lee | 176–167 | 51.31% |
| Socialmallard vs Yoshimitsu | 177–148 | 54.46% |
| Socialmallard vs Paul | 136–182 | 42.77% |
| Socialmallard vs Lars | 140–163 | 46.20% |
| Socialmallard vs Dragunov | 127–170 | 42.76% |
| Socialmallard vs Azucena | 136–136 | 50.00% |
| Socialmallard vs Heihachi | 118–151 | 43.87% |
| Socialmallard vs Xiaoyu | 130–134 | 49.24% |
| Socialmallard vs Jun | 116–140 | 45.31% |
| Socialmallard vs Victor | 101–148 | 40.56% |
| Socialmallard vs Raven | 117–109 | 51.77% |
| Socialmallard vs Asuka | 95–127 | 42.79% |
| Socialmallard vs Feng | 95–127 | 42.79% |
| Socialmallard vs Eddy | 104–115 | 47.49% |
| Socialmallard vs Leo | 105–105 | 50.00% |
| Socialmallard vs Devil Jin | 79–124 | 38.92% |
| Socialmallard vs Nina | 83–98 | 45.86% |
| Socialmallard vs Jack-8 | 85–87 | 49.42% |
| Socialmallard vs Armor King | 69–93 | 42.59% |
| Socialmallard vs Alisa | 72–85 | 45.86% |
| Socialmallard vs Lidia | 83–69 | 54.61% |
| Socialmallard vs Fahkumram | 50–97 | 34.01% |
| Socialmallard vs Leroy | 61–80 | 43.26% |
| Socialmallard vs Anna | 59–73 | 44.70% |
| Socialmallard vs Claudio | 56–56 | 50.00% |
| Socialmallard vs Miary Zo | 38–68 | 35.85% |
| Socialmallard vs Clive | 46–49 | 48.42% |
| Socialmallard vs Shaheen | 51–36 | 58.62% |
| Socialmallard vs Zafina | 44–38 | 53.66% |
| Socialmallard vs Kuma | 27–46 | 36.99% |
| Socialmallard vs Panda | 23–45 | 33.82% |
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.