| Gastón vs Jin | 165–150 | 52.38% |
| Gastón vs King | 118–168 | 41.26% |
| Gastón vs Kazuya | 123–138 | 47.13% |
| Gastón vs Armor King | 100–125–1 | 44.44% |
| Gastón vs Steve | 107–105 | 50.47% |
| Gastón vs Asuka | 99–90 | 52.38% |
| Gastón vs Dragunov | 80–104 | 43.48% |
| Gastón vs Law | 86–92 | 48.31% |
| Gastón vs Eddy | 90–83–1 | 52.02% |
| Gastón vs Heihachi | 56–115 | 32.75% |
| Gastón vs Paul | 53–102 | 34.19% |
| Gastón vs Hwoarang | 85–70 | 54.84% |
| Gastón vs Bryan | 70–82 | 46.05% |
| Gastón vs Reina | 60–90 | 40.00% |
| Gastón vs Lili | 77–59 | 56.62% |
| Gastón vs Yoshimitsu | 41–62 | 39.81% |
| Gastón vs Azucena | 51–51 | 50.00% |
| Gastón vs Xiaoyu | 49–45 | 52.13% |
| Gastón vs Lidia | 46–45 | 50.55% |
| Gastón vs Anna | 45–44 | 50.56% |
| Gastón vs Feng | 38–50 | 43.18% |
| Gastón vs Clive | 46–38 | 54.76% |
| Gastón vs Lee | 37–45 | 45.12% |
| Gastón vs Fahkumram | 43–37 | 53.75% |
| Gastón vs Devil Jin | 26–50 | 34.21% |
| Gastón vs Victor | 38–34 | 52.78% |
| Gastón vs Lars | 46–25 | 64.79% |
| Gastón vs Miary Zo | 26–35 | 42.62% |
| Gastón vs Leroy | 28–32 | 46.67% |
| Gastón vs Alisa | 18–40 | 31.03% |
| Gastón vs Jack-8 | 26–31 | 45.61% |
| Gastón vs Jun | 23–33 | 41.07% |
| Gastón vs Nina | 27–26 | 50.94% |
| Gastón vs Zafina | 18–24 | 42.86% |
| Gastón vs Raven | 18–18 | 50.00% |
| Gastón vs Claudio | 11–22 | 33.33% |
| Gastón vs Leo | 10–19 | 34.48% |
| Gastón vs Shaheen | 12–12 | 50.00% |
| Gastón vs Kuma | 10–10 | 50.00% |
| Gastón vs Panda | 7–9 | 43.75% |
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.