| Shadowheart vs Jin | 32–3 | 91.43% |
| Shadowheart vs Clive | 33–2 | 94.29% |
| Shadowheart vs King | 20–1 | 95.24% |
| Shadowheart vs Kazuya | 17–3 | 85.00% |
| Shadowheart vs Yoshimitsu | 14–2 | 87.50% |
| Shadowheart vs Heihachi | 14–2 | 87.50% |
| Shadowheart vs Hwoarang | 14–1 | 93.33% |
| Shadowheart vs Reina | 13–2 | 86.67% |
| Shadowheart vs Paul | 12–1 | 92.31% |
| Shadowheart vs Lee | 11–2 | 84.62% |
| Shadowheart vs Jun | 12–1 | 92.31% |
| Shadowheart vs Leroy | 11–1 | 91.67% |
| Shadowheart vs Law | 10–0 | 100.00% |
| Shadowheart vs Steve | 9–1 | 90.00% |
| Shadowheart vs Asuka | 9–1 | 90.00% |
| Shadowheart vs Raven | 7–3 | 70.00% |
| Shadowheart vs Lili | 9–0 | 100.00% |
| Shadowheart vs Dragunov | 6–3 | 66.67% |
| Shadowheart vs Victor | 8–1 | 88.89% |
| Shadowheart vs Nina | 8–0 | 100.00% |
| Shadowheart vs Bryan | 7–0 | 100.00% |
| Shadowheart vs Devil Jin | 6–1 | 85.71% |
| Shadowheart vs Azucena | 5–1 | 83.33% |
| Shadowheart vs Lars | 5–0 | 100.00% |
| Shadowheart vs Eddy | 5–0 | 100.00% |
| Shadowheart vs Shaheen | 2–2 | 50.00% |
| Shadowheart vs Leo | 3–0 | 100.00% |
| Shadowheart vs Panda | 2–1 | 66.67% |
| Shadowheart vs Lidia | 3–0 | 100.00% |
| Shadowheart vs Jack-8 | 1–1 | 50.00% |
| Shadowheart vs Kuma | 2–0 | 100.00% |
| Shadowheart vs Feng | 1–0 | 100.00% |
| Shadowheart vs Alisa | 1–0 | 100.00% |
| Shadowheart vs Claudio | 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.