| Killamac21 vs Reina | 13–27 | 32.50% |
| Killamac21 vs Eddy | 8–26 | 23.53% |
| Killamac21 vs Law | 15–17 | 46.88% |
| Killamac21 vs King | 17–13 | 56.67% |
| Killamac21 vs Jun | 15–13 | 53.57% |
| Killamac21 vs Kazuya | 11–15 | 42.31% |
| Killamac21 vs Jin | 15–10 | 60.00% |
| Killamac21 vs Hwoarang | 9–15 | 37.50% |
| Killamac21 vs Lili | 11–12 | 47.83% |
| Killamac21 vs Azucena | 13–6 | 68.42% |
| Killamac21 vs Steve | 12–5 | 70.59% |
| Killamac21 vs Asuka | 11–6 | 64.71% |
| Killamac21 vs Nina | 9–8 | 52.94% |
| Killamac21 vs Victor | 10–5 | 66.67% |
| Killamac21 vs Bryan | 5–8 | 38.46% |
| Killamac21 vs Lee | 6–7 | 46.15% |
| Killamac21 vs Leroy | 5–6 | 45.45% |
| Killamac21 vs Lidia | 7–4 | 63.64% |
| Killamac21 vs Yoshimitsu | 8–3 | 72.73% |
| Killamac21 vs Raven | 6–4 | 60.00% |
| Killamac21 vs Feng | 4–5 | 44.44% |
| Killamac21 vs Alisa | 6–3 | 66.67% |
| Killamac21 vs Claudio | 5–4 | 55.56% |
| Killamac21 vs Xiaoyu | 2–6 | 25.00% |
| Killamac21 vs Jack-8 | 1–6 | 14.29% |
| Killamac21 vs Devil Jin | 3–3 | 50.00% |
| Killamac21 vs Dragunov | 1–5 | 16.67% |
| Killamac21 vs Kuma | 1–4 | 20.00% |
| Killamac21 vs Heihachi | 3–2 | 60.00% |
| Killamac21 vs Paul | 1–2 | 33.33% |
| Killamac21 vs Panda | 2–1 | 66.67% |
| Killamac21 vs Leo | 3–0 | 100.00% |
| Killamac21 vs Lars | 0–2 | 0.00% |
| Killamac21 vs Shaheen | 0–2 | 0.00% |
| Killamac21 vs Zafina | 0–2 | 0.00% |
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.