| IFIIRST vs King | 27–21 | 56.25% |
| IFIIRST vs Jin | 10–14 | 41.67% |
| IFIIRST vs Hwoarang | 4–14 | 22.22% |
| IFIIRST vs Steve | 12–5 | 70.59% |
| IFIIRST vs Reina | 8–7 | 53.33% |
| IFIIRST vs Law | 8–6 | 57.14% |
| IFIIRST vs Dragunov | 9–5 | 64.29% |
| IFIIRST vs Asuka | 4–6 | 40.00% |
| IFIIRST vs Lili | 7–3 | 70.00% |
| IFIIRST vs Azucena | 6–4 | 60.00% |
| IFIIRST vs Eddy | 6–4 | 60.00% |
| IFIIRST vs Clive | 6–4 | 60.00% |
| IFIIRST vs Nina | 3–6 | 33.33% |
| IFIIRST vs Heihachi | 1–8 | 11.11% |
| IFIIRST vs Bryan | 2–6 | 25.00% |
| IFIIRST vs Claudio | 6–2 | 75.00% |
| IFIIRST vs Lee | 2–6 | 25.00% |
| IFIIRST vs Kazuya | 2–5 | 28.57% |
| IFIIRST vs Devil Jin | 7–0 | 100.00% |
| IFIIRST vs Feng | 2–5 | 28.57% |
| IFIIRST vs Xiaoyu | 2–4 | 33.33% |
| IFIIRST vs Yoshimitsu | 2–3 | 40.00% |
| IFIIRST vs Lars | 3–2 | 60.00% |
| IFIIRST vs Zafina | 1–4 | 20.00% |
| IFIIRST vs Victor | 3–2 | 60.00% |
| IFIIRST vs Lidia | 4–0 | 100.00% |
| IFIIRST vs Paul | 1–2 | 33.33% |
| IFIIRST vs Jack-8 | 1–2 | 33.33% |
| IFIIRST vs Leo | 0–2 | 0.00% |
| IFIIRST vs Alisa | 0–2 | 0.00% |
| IFIIRST vs Kuma | 0–2 | 0.00% |
| IFIIRST vs Leroy | 2–0 | 100.00% |
| IFIIRST vs Jun | 0–2 | 0.00% |
| IFIIRST vs Anna | 2–0 | 100.00% |
| IFIIRST 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.