| Gwynn vs Kazuya | 120–74 | 61.86% |
| Gwynn vs Bryan | 100–68 | 59.52% |
| Gwynn vs Jin | 108–58 | 65.06% |
| Gwynn vs Dragunov | 101–53 | 65.58% |
| Gwynn vs Reina | 96–50 | 65.75% |
| Gwynn vs King | 77–57 | 57.46% |
| Gwynn vs Heihachi | 75–48 | 60.98% |
| Gwynn vs Law | 69–43 | 61.61% |
| Gwynn vs Steve | 72–33 | 68.57% |
| Gwynn vs Fahkumram | 64–38 | 62.75% |
| Gwynn vs Paul | 49–44 | 52.69% |
| Gwynn vs Hwoarang | 67–26 | 72.04% |
| Gwynn vs Yoshimitsu | 60–30 | 66.67% |
| Gwynn vs Asuka | 51–35 | 59.30% |
| Gwynn vs Lili | 56–25 | 69.14% |
| Gwynn vs Devil Jin | 43–34 | 55.84% |
| Gwynn vs Lars | 45–30 | 60.00% |
| Gwynn vs Clive | 46–29 | 61.33% |
| Gwynn vs Jun | 43–25 | 63.24% |
| Gwynn vs Lee | 46–20 | 69.70% |
| Gwynn vs Victor | 38–23 | 62.30% |
| Gwynn vs Leroy | 29–22–1 | 56.86% |
| Gwynn vs Eddy | 26–22 | 54.17% |
| Gwynn vs Lidia | 28–17 | 62.22% |
| Gwynn vs Xiaoyu | 19–25 | 43.18% |
| Gwynn vs Feng | 21–23 | 47.73% |
| Gwynn vs Alisa | 20–22 | 47.62% |
| Gwynn vs Shaheen | 21–21 | 50.00% |
| Gwynn vs Azucena | 23–19 | 54.76% |
| Gwynn vs Nina | 24–17 | 58.54% |
| Gwynn vs Leo | 15–24 | 38.46% |
| Gwynn vs Claudio | 22–16 | 57.89% |
| Gwynn vs Armor King | 23–14 | 62.16% |
| Gwynn vs Jack-8 | 17–19 | 47.22% |
| Gwynn vs Raven | 21–13 | 61.76% |
| Gwynn vs Anna | 11–13 | 45.83% |
| Gwynn vs Zafina | 9–14 | 39.13% |
| Gwynn vs Miary Zo | 10–11 | 47.62% |
| Gwynn vs Kuma | 10–10 | 50.00% |
| Gwynn vs Panda | 7–6 | 53.85% |
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.