| iServFiendz vs Lidia | 7–10 | 41.18% |
| iServFiendz vs King | 6–10 | 37.50% |
| iServFiendz vs Reina | 9–6 | 60.00% |
| iServFiendz vs Jin | 8–6 | 57.14% |
| iServFiendz vs Eddy | 5–7 | 41.67% |
| iServFiendz vs Bryan | 5–6 | 45.45% |
| iServFiendz vs Steve | 3–8 | 27.27% |
| iServFiendz vs Asuka | 6–5 | 54.55% |
| iServFiendz vs Yoshimitsu | 3–7 | 30.00% |
| iServFiendz vs Kazuya | 5–5 | 50.00% |
| iServFiendz vs Law | 6–3 | 66.67% |
| iServFiendz vs Jun | 5–4 | 55.56% |
| iServFiendz vs Leroy | 6–2 | 75.00% |
| iServFiendz vs Xiaoyu | 4–3 | 57.14% |
| iServFiendz vs Lars | 3–4 | 42.86% |
| iServFiendz vs Nina | 4–3 | 57.14% |
| iServFiendz vs Azucena | 4–3 | 57.14% |
| iServFiendz vs Victor | 1–5 | 16.67% |
| iServFiendz vs Lili | 3–2 | 60.00% |
| iServFiendz vs Raven | 1–3 | 25.00% |
| iServFiendz vs Paul | 2–1 | 66.67% |
| iServFiendz vs Hwoarang | 0–3 | 0.00% |
| iServFiendz vs Dragunov | 1–2 | 33.33% |
| iServFiendz vs Feng | 0–2 | 0.00% |
| iServFiendz vs Alisa | 2–0 | 100.00% |
| iServFiendz vs Lee | 1–1 | 50.00% |
| iServFiendz vs Zafina | 1–1 | 50.00% |
| iServFiendz 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.