| Fetus Knuckles vs Reina | 7–12 | 36.84% |
| Fetus Knuckles vs Victor | 3–7 | 30.00% |
| Fetus Knuckles vs Bryan | 1–7 | 12.50% |
| Fetus Knuckles vs Nina | 3–5 | 37.50% |
| Fetus Knuckles vs Yoshimitsu | 0–7 | 0.00% |
| Fetus Knuckles vs Hwoarang | 3–4 | 42.86% |
| Fetus Knuckles vs Kazuya | 1–6 | 14.29% |
| Fetus Knuckles vs Devil Jin | 2–5 | 28.57% |
| Fetus Knuckles vs Eddy | 1–6 | 14.29% |
| Fetus Knuckles vs Steve | 2–4 | 33.33% |
| Fetus Knuckles vs Leo | 2–4 | 33.33% |
| Fetus Knuckles vs Kuma | 2–4 | 33.33% |
| Fetus Knuckles vs King | 1–4 | 20.00% |
| Fetus Knuckles vs Jin | 2–3 | 40.00% |
| Fetus Knuckles vs Jack-8 | 0–5 | 0.00% |
| Fetus Knuckles vs Lee | 3–2 | 60.00% |
| Fetus Knuckles vs Azucena | 4–1 | 80.00% |
| Fetus Knuckles vs Lili | 0–4 | 0.00% |
| Fetus Knuckles vs Asuka | 0–3 | 0.00% |
| Fetus Knuckles vs Jun | 2–1 | 66.67% |
| Fetus Knuckles vs Paul | 0–2 | 0.00% |
| Fetus Knuckles vs Feng | 2–0 | 100.00% |
| Fetus Knuckles vs Dragunov | 0–2 | 0.00% |
| Fetus Knuckles vs Lars | 0–2 | 0.00% |
| Fetus Knuckles vs Shaheen | 1–1 | 50.00% |
| Fetus Knuckles vs Raven | 2–0 | 100.00% |
| Fetus Knuckles vs Law | 0–1 | 0.00% |
| Fetus Knuckles vs Alisa | 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.