| xeffi vs King | 75–81 | 48.08% |
| xeffi vs Jin | 61–83–1 | 42.36% |
| xeffi vs Kazuya | 51–85 | 37.50% |
| xeffi vs Bryan | 51–77 | 39.84% |
| xeffi vs Reina | 60–59 | 50.42% |
| xeffi vs Heihachi | 41–57 | 41.84% |
| xeffi vs Hwoarang | 53–38 | 58.24% |
| xeffi vs Steve | 40–51 | 43.96% |
| xeffi vs Law | 38–45 | 45.78% |
| xeffi vs Yoshimitsu | 35–48 | 42.17% |
| xeffi vs Lili | 38–44–1 | 46.34% |
| xeffi vs Victor | 34–49 | 40.96% |
| xeffi vs Dragunov | 32–46 | 41.03% |
| xeffi vs Paul | 38–35 | 52.05% |
| xeffi vs Azucena | 27–46 | 36.99% |
| xeffi vs Eddy | 21–49 | 30.00% |
| xeffi vs Jun | 27–41 | 39.71% |
| xeffi vs Xiaoyu | 28–35 | 44.44% |
| xeffi vs Lee | 24–37 | 39.34% |
| xeffi vs Lars | 31–25 | 55.36% |
| xeffi vs Jack-8 | 25–29 | 46.30% |
| xeffi vs Lidia | 21–28 | 42.86% |
| xeffi vs Leo | 17–28 | 37.78% |
| xeffi vs Asuka | 22–22 | 50.00% |
| xeffi vs Feng | 19–23 | 45.24% |
| xeffi vs Nina | 12–28 | 30.00% |
| xeffi vs Alisa | 13–24 | 35.14% |
| xeffi vs Devil Jin | 12–18 | 40.00% |
| xeffi vs Raven | 14–14 | 50.00% |
| xeffi vs Clive | 12–15 | 44.44% |
| xeffi vs Claudio | 8–14 | 36.36% |
| xeffi vs Leroy | 7–14 | 33.33% |
| xeffi vs Shaheen | 12–7 | 63.16% |
| xeffi vs Zafina | 9–7 | 56.25% |
| xeffi vs Kuma | 3–12 | 20.00% |
| xeffi vs Panda | 3–4 | 42.86% |
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.