| JoeyJSlammy vs Kazuya | 552–604 | 47.75% |
| JoeyJSlammy vs Bryan | 401–558 | 41.81% |
| JoeyJSlammy vs King | 448–442 | 50.34% |
| JoeyJSlammy vs Jin | 354–475 | 42.70% |
| JoeyJSlammy vs Heihachi | 353–388 | 47.64% |
| JoeyJSlammy vs Steve | 308–375–1 | 45.10% |
| JoeyJSlammy vs Reina | 305–328–1 | 48.18% |
| JoeyJSlammy vs Law | 285–341 | 45.53% |
| JoeyJSlammy vs Hwoarang | 291–334 | 46.56% |
| JoeyJSlammy vs Dragunov | 291–279 | 51.05% |
| JoeyJSlammy vs Paul | 205–241 | 45.96% |
| JoeyJSlammy vs Lee | 181–235 | 43.51% |
| JoeyJSlammy vs Azucena | 167–246 | 40.44% |
| JoeyJSlammy vs Lili | 175–221–1 | 44.19% |
| JoeyJSlammy vs Yoshimitsu | 159–229 | 40.98% |
| JoeyJSlammy vs Asuka | 164–207 | 44.20% |
| JoeyJSlammy vs Xiaoyu | 171–194 | 46.85% |
| JoeyJSlammy vs Lars | 169–193 | 46.69% |
| JoeyJSlammy vs Jun | 147–180 | 44.95% |
| JoeyJSlammy vs Fahkumram | 144–180–1 | 44.44% |
| JoeyJSlammy vs Anna | 151–163 | 48.09% |
| JoeyJSlammy vs Armor King | 131–177 | 42.53% |
| JoeyJSlammy vs Devil Jin | 138–169 | 44.95% |
| JoeyJSlammy vs Eddy | 156–151 | 50.81% |
| JoeyJSlammy vs Lidia | 132–172 | 43.42% |
| JoeyJSlammy vs Victor | 137–138 | 49.82% |
| JoeyJSlammy vs Feng | 101–169 | 37.41% |
| JoeyJSlammy vs Miary Zo | 112–145 | 43.58% |
| JoeyJSlammy vs Nina | 106–148 | 41.73% |
| JoeyJSlammy vs Clive | 108–145 | 42.69% |
| JoeyJSlammy vs Leroy | 91–138 | 39.74% |
| JoeyJSlammy vs Leo | 106–114 | 48.18% |
| JoeyJSlammy vs Raven | 96–115 | 45.50% |
| JoeyJSlammy vs Alisa | 59–130 | 31.22% |
| JoeyJSlammy vs Jack-8 | 83–103 | 44.62% |
| JoeyJSlammy vs Claudio | 71–90 | 44.10% |
| JoeyJSlammy vs Kuma | 63–87 | 42.00% |
| JoeyJSlammy vs Zafina | 50–57 | 46.73% |
| JoeyJSlammy vs Shaheen | 27–68 | 28.42% |
| JoeyJSlammy vs Panda | 24–35 | 40.68% |
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.