| Gaius vs Kazuya | 71–99 | 41.76% |
| Gaius vs Jin | 75–74 | 50.34% |
| Gaius vs Reina | 64–74 | 46.38% |
| Gaius vs King | 65–65 | 50.00% |
| Gaius vs Bryan | 68–58 | 53.97% |
| Gaius vs Steve | 50–65 | 43.48% |
| Gaius vs Dragunov | 49–53 | 48.04% |
| Gaius vs Lidia | 44–47 | 48.35% |
| Gaius vs Hwoarang | 46–41 | 52.87% |
| Gaius vs Alisa | 34–50 | 40.48% |
| Gaius vs Devil Jin | 37–45 | 45.12% |
| Gaius vs Law | 33–42 | 44.00% |
| Gaius vs Lili | 27–47 | 36.49% |
| Gaius vs Asuka | 38–35 | 52.05% |
| Gaius vs Paul | 28–38 | 42.42% |
| Gaius vs Yoshimitsu | 35–28 | 55.56% |
| Gaius vs Jun | 26–29 | 47.27% |
| Gaius vs Claudio | 23–31 | 42.59% |
| Gaius vs Lee | 24–30 | 44.44% |
| Gaius vs Azucena | 25–21 | 54.35% |
| Gaius vs Victor | 16–29 | 35.56% |
| Gaius vs Nina | 18–25 | 41.86% |
| Gaius vs Xiaoyu | 15–26 | 36.59% |
| Gaius vs Eddy | 13–20 | 39.39% |
| Gaius vs Jack-8 | 13–19 | 40.62% |
| Gaius vs Feng | 12–17 | 41.38% |
| Gaius vs Leroy | 14–13 | 51.85% |
| Gaius vs Heihachi | 10–14 | 41.67% |
| Gaius vs Kuma | 5–15 | 25.00% |
| Gaius vs Raven | 9–11 | 45.00% |
| Gaius vs Lars | 10–6 | 62.50% |
| Gaius vs Leo | 9–6 | 60.00% |
| Gaius vs Shaheen | 6–7 | 46.15% |
| Gaius vs Zafina | 8–5 | 61.54% |
| Gaius vs Panda | 1–5 | 16.67% |
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.