| Shadow XII vs Reina | 9–3 | 75.00% |
| Shadow XII vs Law | 7–2 | 77.78% |
| Shadow XII vs Jin | 6–3 | 66.67% |
| Shadow XII vs Azucena | 6–3 | 66.67% |
| Shadow XII vs Steve | 6–2 | 75.00% |
| Shadow XII vs Devil Jin | 4–3 | 57.14% |
| Shadow XII vs Bryan | 5–1 | 83.33% |
| Shadow XII vs Kazuya | 5–1 | 83.33% |
| Shadow XII vs Jun | 1–5 | 16.67% |
| Shadow XII vs Jack-8 | 5–0 | 100.00% |
| Shadow XII vs Anna | 4–1 | 80.00% |
| Shadow XII vs Yoshimitsu | 2–2 | 50.00% |
| Shadow XII vs Dragunov | 0–4 | 0.00% |
| Shadow XII vs Paul | 2–1 | 66.67% |
| Shadow XII vs King | 3–0 | 100.00% |
| Shadow XII vs Fahkumram | 2–1 | 66.67% |
| Shadow XII vs Claudio | 1–1 | 50.00% |
| Shadow XII vs Lee | 2–0 | 100.00% |
| Shadow XII vs Zafina | 0–2 | 0.00% |
| Shadow XII vs Victor | 2–0 | 100.00% |
| Shadow XII vs Raven | 1–1 | 50.00% |
| Shadow XII vs Heihachi | 2–0 | 100.00% |
| Shadow XII vs Miary Zo | 1–1 | 50.00% |
| Shadow XII vs Asuka | 1–0 | 100.00% |
| Shadow XII vs Feng | 1–0 | 100.00% |
| Shadow XII vs Lars | 1–0 | 100.00% |
| Shadow XII vs Shaheen | 0–1 | 0.00% |
| Shadow XII vs Nina | 0–1 | 0.00% |
| Shadow XII vs Kuma | 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.