| Gallagher vs Kazuya | 79–93 | 45.93% |
| Gallagher vs Paul | 63–82 | 43.45% |
| Gallagher vs Reina | 58–77 | 42.96% |
| Gallagher vs Dragunov | 42–70–1 | 37.50% |
| Gallagher vs King | 42–65 | 39.25% |
| Gallagher vs Lili | 54–48 | 52.94% |
| Gallagher vs Asuka | 49–50 | 49.49% |
| Gallagher vs Law | 53–38 | 58.24% |
| Gallagher vs Hwoarang | 44–44 | 50.00% |
| Gallagher vs Jun | 38–48 | 44.19% |
| Gallagher vs Heihachi | 31–55 | 36.05% |
| Gallagher vs Steve | 51–34 | 60.00% |
| Gallagher vs Jin | 37–42 | 46.84% |
| Gallagher vs Bryan | 32–47 | 40.51% |
| Gallagher vs Eddy | 28–48 | 36.84% |
| Gallagher vs Azucena | 26–35 | 42.62% |
| Gallagher vs Victor | 27–30 | 47.37% |
| Gallagher vs Yoshimitsu | 20–35 | 36.36% |
| Gallagher vs Nina | 25–28 | 47.17% |
| Gallagher vs Xiaoyu | 28–23 | 54.90% |
| Gallagher vs Alisa | 12–36 | 25.00% |
| Gallagher vs Lars | 15–29 | 34.09% |
| Gallagher vs Feng | 14–28 | 33.33% |
| Gallagher vs Lidia | 18–24 | 42.86% |
| Gallagher vs Lee | 19–17 | 52.78% |
| Gallagher vs Claudio | 15–19 | 44.12% |
| Gallagher vs Leo | 13–20 | 39.39% |
| Gallagher vs Jack-8 | 13–17 | 43.33% |
| Gallagher vs Devil Jin | 12–17 | 41.38% |
| Gallagher vs Zafina | 8–16 | 33.33% |
| Gallagher vs Leroy | 7–16 | 30.43% |
| Gallagher vs Shaheen | 5–14 | 26.32% |
| Gallagher vs Raven | 4–12 | 25.00% |
| Gallagher vs Kuma | 1–12 | 7.69% |
| Gallagher vs Clive | 8–5 | 61.54% |
| Gallagher vs Fahkumram | 5–8 | 38.46% |
| Gallagher vs Panda | 8–3 | 72.73% |
| Gallagher vs Anna | 7–4 | 63.64% |
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.