| Reaper18k vs Eddy | 13–34 | 27.66% |
| Reaper18k vs Kazuya | 15–21 | 41.67% |
| Reaper18k vs Reina | 13–17 | 43.33% |
| Reaper18k vs King | 13–14 | 48.15% |
| Reaper18k vs Steve | 14–10 | 58.33% |
| Reaper18k vs Lars | 10–14 | 41.67% |
| Reaper18k vs Hwoarang | 11–8 | 57.89% |
| Reaper18k vs Jun | 8–9 | 47.06% |
| Reaper18k vs Asuka | 9–7 | 56.25% |
| Reaper18k vs Azucena | 5–10 | 33.33% |
| Reaper18k vs Feng | 8–5 | 61.54% |
| Reaper18k vs Lili | 5–7 | 41.67% |
| Reaper18k vs Leo | 5–7 | 41.67% |
| Reaper18k vs Jin | 4–7 | 36.36% |
| Reaper18k vs Dragunov | 3–8 | 27.27% |
| Reaper18k vs Law | 3–7 | 30.00% |
| Reaper18k vs Yoshimitsu | 4–6 | 40.00% |
| Reaper18k vs Leroy | 2–6 | 25.00% |
| Reaper18k vs Bryan | 4–3 | 57.14% |
| Reaper18k vs Victor | 3–4 | 42.86% |
| Reaper18k vs Xiaoyu | 3–3 | 50.00% |
| Reaper18k vs Alisa | 1–5 | 16.67% |
| Reaper18k vs Claudio | 2–4 | 33.33% |
| Reaper18k vs Lee | 0–6 | 0.00% |
| Reaper18k vs Shaheen | 1–4 | 20.00% |
| Reaper18k vs Nina | 2–3 | 40.00% |
| Reaper18k vs Paul | 1–2 | 33.33% |
| Reaper18k vs Devil Jin | 2–0 | 100.00% |
| Reaper18k vs Raven | 2–0 | 100.00% |
| Reaper18k vs Kuma | 1–0 | 100.00% |
| Reaper18k vs Zafina | 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.