| Killjoy vs Reina | 150–177 | 45.87% |
| Killjoy vs King | 119–188 | 38.76% |
| Killjoy vs Heihachi | 108–159 | 40.45% |
| Killjoy vs Jin | 98–161 | 37.84% |
| Killjoy vs Kazuya | 114–145 | 44.02% |
| Killjoy vs Hwoarang | 90–136 | 39.82% |
| Killjoy vs Bryan | 72–154 | 31.86% |
| Killjoy vs Dragunov | 80–134 | 37.38% |
| Killjoy vs Steve | 86–124 | 40.95% |
| Killjoy vs Eddy | 70–139 | 33.49% |
| Killjoy vs Lidia | 82–110 | 42.71% |
| Killjoy vs Asuka | 81–110 | 42.41% |
| Killjoy vs Lee | 64–108 | 37.21% |
| Killjoy vs Azucena | 73–99 | 42.44% |
| Killjoy vs Jun | 70–95 | 42.42% |
| Killjoy vs Yoshimitsu | 68–96 | 41.46% |
| Killjoy vs Lili | 69–83 | 45.39% |
| Killjoy vs Law | 46–105 | 30.46% |
| Killjoy vs Lars | 52–99 | 34.44% |
| Killjoy vs Clive | 51–78 | 39.53% |
| Killjoy vs Nina | 54–74 | 42.19% |
| Killjoy vs Victor | 45–81 | 35.71% |
| Killjoy vs Leo | 43–78 | 35.54% |
| Killjoy vs Paul | 49–70 | 41.18% |
| Killjoy vs Feng | 43–75 | 36.44% |
| Killjoy vs Leroy | 55–62 | 47.01% |
| Killjoy vs Devil Jin | 43–68 | 38.74% |
| Killjoy vs Jack-8 | 39–71 | 35.45% |
| Killjoy vs Alisa | 40–69 | 36.70% |
| Killjoy vs Xiaoyu | 45–52 | 46.39% |
| Killjoy vs Kuma | 17–77 | 18.09% |
| Killjoy vs Claudio | 21–66 | 24.14% |
| Killjoy vs Anna | 45–31 | 59.21% |
| Killjoy vs Shaheen | 27–46 | 36.99% |
| Killjoy vs Raven | 29–41 | 41.43% |
| Killjoy vs Zafina | 23–31 | 42.59% |
| Killjoy vs Panda | 12–17 | 41.38% |
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.