| Stephen vs Kazuya | 191–165 | 53.65% |
| Stephen vs Heihachi | 199–118 | 62.78% |
| Stephen vs Bryan | 157–145 | 51.99% |
| Stephen vs Jin | 161–117 | 57.91% |
| Stephen vs Reina | 113–96 | 54.07% |
| Stephen vs Steve | 102–97 | 51.26% |
| Stephen vs Lee | 98–89 | 52.41% |
| Stephen vs Paul | 111–72 | 60.66% |
| Stephen vs King | 92–80 | 53.49% |
| Stephen vs Hwoarang | 92–74 | 55.42% |
| Stephen vs Law | 100–57 | 63.69% |
| Stephen vs Dragunov | 70–77 | 47.62% |
| Stephen vs Clive | 65–71 | 47.79% |
| Stephen vs Lidia | 69–60 | 53.49% |
| Stephen vs Devil Jin | 60–63 | 48.78% |
| Stephen vs Eddy | 79–38 | 67.52% |
| Stephen vs Lili | 80–36 | 68.97% |
| Stephen vs Yoshimitsu | 66–45 | 59.46% |
| Stephen vs Nina | 66–43 | 60.55% |
| Stephen vs Armor King | 53–51 | 50.96% |
| Stephen vs Azucena | 62–41 | 60.19% |
| Stephen vs Xiaoyu | 55–44 | 55.56% |
| Stephen vs Jun | 64–33 | 65.98% |
| Stephen vs Asuka | 63–32 | 66.32% |
| Stephen vs Feng | 42–40 | 51.22% |
| Stephen vs Claudio | 32–41 | 43.84% |
| Stephen vs Lars | 31–38 | 44.93% |
| Stephen vs Victor | 45–22 | 67.16% |
| Stephen vs Fahkumram | 44–20 | 68.75% |
| Stephen vs Leroy | 32–31 | 50.79% |
| Stephen vs Leo | 34–22 | 60.71% |
| Stephen vs Zafina | 31–23 | 57.41% |
| Stephen vs Raven | 30–23 | 56.60% |
| Stephen vs Alisa | 27–24 | 52.94% |
| Stephen vs Anna | 25–24 | 51.02% |
| Stephen vs Jack-8 | 22–26 | 45.83% |
| Stephen vs Shaheen | 22–24 | 47.83% |
| Stephen vs Miary Zo | 30–15 | 66.67% |
| Stephen vs Kuma | 16–11 | 59.26% |
| Stephen vs Panda | 12–1 | 92.31% |
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.