| Reaper21 vs Reina | 9–19 | 32.14% |
| Reaper21 vs Eddy | 1–26 | 3.70% |
| Reaper21 vs King | 8–13 | 38.10% |
| Reaper21 vs Yoshimitsu | 7–12 | 36.84% |
| Reaper21 vs Law | 4–12 | 25.00% |
| Reaper21 vs Hwoarang | 3–11 | 21.43% |
| Reaper21 vs Steve | 2–12 | 14.29% |
| Reaper21 vs Lili | 2–12 | 14.29% |
| Reaper21 vs Jin | 3–9 | 25.00% |
| Reaper21 vs Dragunov | 4–8 | 33.33% |
| Reaper21 vs Azucena | 3–9 | 25.00% |
| Reaper21 vs Victor | 5–7 | 41.67% |
| Reaper21 vs Kazuya | 3–8 | 27.27% |
| Reaper21 vs Jun | 4–6 | 40.00% |
| Reaper21 vs Leroy | 3–6 | 33.33% |
| Reaper21 vs Bryan | 2–6 | 25.00% |
| Reaper21 vs Alisa | 2–6 | 25.00% |
| Reaper21 vs Jack-8 | 1–5 | 16.67% |
| Reaper21 vs Lars | 2–4 | 33.33% |
| Reaper21 vs Nina | 1–5 | 16.67% |
| Reaper21 vs Lee | 3–3 | 50.00% |
| Reaper21 vs Paul | 1–4 | 20.00% |
| Reaper21 vs Devil Jin | 2–3 | 40.00% |
| Reaper21 vs Leo | 3–2 | 60.00% |
| Reaper21 vs Raven | 3–2 | 60.00% |
| Reaper21 vs Xiaoyu | 2–2 | 50.00% |
| Reaper21 vs Zafina | 2–2 | 50.00% |
| Reaper21 vs Asuka | 0–3 | 0.00% |
| Reaper21 vs Shaheen | 1–1 | 50.00% |
| Reaper21 vs Lidia | 0–2 | 0.00% |
| Reaper21 vs Heihachi | 1–1 | 50.00% |
| Reaper21 vs Feng | 0–1 | 0.00% |
| Reaper21 vs Claudio | 1–0 | 100.00% |
| Reaper21 vs Panda | 0–1 | 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.