| Rei9 vs Kazuya | 89–137 | 39.38% |
| Rei9 vs King | 62–126 | 32.98% |
| Rei9 vs Reina | 75–100 | 42.86% |
| Rei9 vs Jin | 64–104 | 38.10% |
| Rei9 vs Dragunov | 75–92 | 44.91% |
| Rei9 vs Hwoarang | 72–94 | 43.37% |
| Rei9 vs Lili | 54–97 | 35.76% |
| Rei9 vs Paul | 71–74 | 48.97% |
| Rei9 vs Bryan | 47–96 | 32.87% |
| Rei9 vs Steve | 58–85 | 40.56% |
| Rei9 vs Law | 41–87 | 32.03% |
| Rei9 vs Asuka | 42–86 | 32.81% |
| Rei9 vs Xiaoyu | 49–74 | 39.84% |
| Rei9 vs Clive | 33–74 | 30.84% |
| Rei9 vs Jun | 39–56 | 41.05% |
| Rei9 vs Yoshimitsu | 27–59 | 31.40% |
| Rei9 vs Victor | 26–60 | 30.23% |
| Rei9 vs Heihachi | 35–49 | 41.67% |
| Rei9 vs Alisa | 30–48 | 38.46% |
| Rei9 vs Azucena | 28–48 | 36.84% |
| Rei9 vs Claudio | 31–37 | 45.59% |
| Rei9 vs Nina | 28–34 | 45.16% |
| Rei9 vs Eddy | 18–43 | 29.51% |
| Rei9 vs Jack-8 | 22–35 | 38.60% |
| Rei9 vs Devil Jin | 10–44 | 18.52% |
| Rei9 vs Fahkumram | 12–39 | 23.53% |
| Rei9 vs Lee | 24–23 | 51.06% |
| Rei9 vs Lars | 18–26 | 40.91% |
| Rei9 vs Zafina | 23–20 | 53.49% |
| Rei9 vs Lidia | 22–21 | 51.16% |
| Rei9 vs Anna | 17–21 | 44.74% |
| Rei9 vs Raven | 9–27 | 25.00% |
| Rei9 vs Kuma | 10–24 | 29.41% |
| Rei9 vs Armor King | 9–25 | 26.47% |
| Rei9 vs Leo | 11–19 | 36.67% |
| Rei9 vs Feng | 5–21 | 19.23% |
| Rei9 vs Leroy | 9–13 | 40.91% |
| Rei9 vs Panda | 3–16 | 15.79% |
| Rei9 vs Shaheen | 10–8 | 55.56% |
| Rei9 vs Miary Zo | 4–10 | 28.57% |
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.