| JFH121 vs Reina | 4–3 | 57.14% |
| JFH121 vs Asuka | 3–3 | 50.00% |
| JFH121 vs Law | 3–2 | 60.00% |
| JFH121 vs Bryan | 1–3 | 25.00% |
| JFH121 vs Steve | 2–2 | 50.00% |
| JFH121 vs King | 3–0 | 100.00% |
| JFH121 vs Xiaoyu | 2–1 | 66.67% |
| JFH121 vs Jin | 1–2 | 33.33% |
| JFH121 vs Nina | 1–2 | 33.33% |
| JFH121 vs Kuma | 1–2 | 33.33% |
| JFH121 vs Clive | 2–1 | 66.67% |
| JFH121 vs Kazuya | 0–2 | 0.00% |
| JFH121 vs Alisa | 2–0 | 100.00% |
| JFH121 vs Victor | 1–1 | 50.00% |
| JFH121 vs Raven | 2–0 | 100.00% |
| JFH121 vs Eddy | 2–0 | 100.00% |
| JFH121 vs Yoshimitsu | 0–1 | 0.00% |
| JFH121 vs Hwoarang | 1–0 | 100.00% |
| JFH121 vs Devil Jin | 0–1 | 0.00% |
| JFH121 vs Dragunov | 0–1 | 0.00% |
| JFH121 vs Zafina | 1–0 | 100.00% |
| JFH121 vs Jun | 1–0 | 100.00% |
| JFH121 vs Azucena | 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.