| Reaper-J129 vs Law | 6–7 | 46.15% |
| Reaper-J129 vs Yoshimitsu | 3–6 | 33.33% |
| Reaper-J129 vs Reina | 4–5 | 44.44% |
| Reaper-J129 vs Eddy | 3–6 | 33.33% |
| Reaper-J129 vs Hwoarang | 4–4 | 50.00% |
| Reaper-J129 vs Xiaoyu | 4–4 | 50.00% |
| Reaper-J129 vs Jin | 2–6 | 25.00% |
| Reaper-J129 vs Feng | 3–4 | 42.86% |
| Reaper-J129 vs King | 3–2 | 60.00% |
| Reaper-J129 vs Paul | 2–2 | 50.00% |
| Reaper-J129 vs Bryan | 1–3 | 25.00% |
| Reaper-J129 vs Kazuya | 1–3 | 25.00% |
| Reaper-J129 vs Steve | 2–2 | 50.00% |
| Reaper-J129 vs Jack-8 | 1–2 | 33.33% |
| Reaper-J129 vs Asuka | 0–3 | 0.00% |
| Reaper-J129 vs Dragunov | 0–3 | 0.00% |
| Reaper-J129 vs Lars | 1–2 | 33.33% |
| Reaper-J129 vs Nina | 1–2 | 33.33% |
| Reaper-J129 vs Panda | 2–1 | 66.67% |
| Reaper-J129 vs Leroy | 2–1 | 66.67% |
| Reaper-J129 vs Jun | 0–3 | 0.00% |
| Reaper-J129 vs Lili | 2–0 | 100.00% |
| Reaper-J129 vs Azucena | 0–2 | 0.00% |
| Reaper-J129 vs Victor | 0–2 | 0.00% |
| Reaper-J129 vs Devil Jin | 1–0 | 100.00% |
| Reaper-J129 vs Alisa | 0–1 | 0.00% |
| Reaper-J129 vs Lee | 0–1 | 0.00% |
| Reaper-J129 vs Raven | 1–0 | 100.00% |
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.