| Octob3r_Shad9ws vs Law | 7–21 | 25.00% |
| Octob3r_Shad9ws vs Steve | 5–18 | 21.74% |
| Octob3r_Shad9ws vs King | 4–16 | 20.00% |
| Octob3r_Shad9ws vs Reina | 7–8 | 46.67% |
| Octob3r_Shad9ws vs Yoshimitsu | 8–6 | 57.14% |
| Octob3r_Shad9ws vs Dragunov | 4–10 | 28.57% |
| Octob3r_Shad9ws vs Lidia | 5–9 | 35.71% |
| Octob3r_Shad9ws vs Lili | 1–11 | 8.33% |
| Octob3r_Shad9ws vs Jun | 2–10 | 16.67% |
| Octob3r_Shad9ws vs Azucena | 7–4 | 63.64% |
| Octob3r_Shad9ws vs Jin | 5–5 | 50.00% |
| Octob3r_Shad9ws vs Clive | 4–6 | 40.00% |
| Octob3r_Shad9ws vs Asuka | 1–8 | 11.11% |
| Octob3r_Shad9ws vs Heihachi | 4–5 | 44.44% |
| Octob3r_Shad9ws vs Anna | 0–9 | 0.00% |
| Octob3r_Shad9ws vs Fahkumram | 0–9 | 0.00% |
| Octob3r_Shad9ws vs Kazuya | 3–5 | 37.50% |
| Octob3r_Shad9ws vs Hwoarang | 3–4 | 42.86% |
| Octob3r_Shad9ws vs Victor | 1–6 | 14.29% |
| Octob3r_Shad9ws vs Lee | 0–6 | 0.00% |
| Octob3r_Shad9ws vs Feng | 1–4 | 20.00% |
| Octob3r_Shad9ws vs Lars | 0–5 | 0.00% |
| Octob3r_Shad9ws vs Nina | 1–4 | 20.00% |
| Octob3r_Shad9ws vs Leroy | 0–5 | 0.00% |
| Octob3r_Shad9ws vs Jack-8 | 2–2 | 50.00% |
| Octob3r_Shad9ws vs Alisa | 0–4 | 0.00% |
| Octob3r_Shad9ws vs Shaheen | 0–4 | 0.00% |
| Octob3r_Shad9ws vs Xiaoyu | 2–1 | 66.67% |
| Octob3r_Shad9ws vs Leo | 2–1 | 66.67% |
| Octob3r_Shad9ws vs Paul | 0–2 | 0.00% |
| Octob3r_Shad9ws vs Eddy | 0–2 | 0.00% |
| Octob3r_Shad9ws vs Bryan | 1–0 | 100.00% |
| Octob3r_Shad9ws vs Devil Jin | 0–1 | 0.00% |
| Octob3r_Shad9ws 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.