| Gwynnn vs Jin | 13–33 | 28.26% |
| Gwynnn vs Bryan | 24–20 | 54.55% |
| Gwynnn vs Kazuya | 24–20 | 54.55% |
| Gwynnn vs Dragunov | 22–5 | 81.48% |
| Gwynnn vs King | 8–17 | 32.00% |
| Gwynnn vs Steve | 7–16 | 30.43% |
| Gwynnn vs Devil Jin | 11–12 | 47.83% |
| Gwynnn vs Victor | 9–13 | 40.91% |
| Gwynnn vs Yoshimitsu | 11–10 | 52.38% |
| Gwynnn vs Eddy | 6–14 | 30.00% |
| Gwynnn vs Paul | 8–10 | 44.44% |
| Gwynnn vs Hwoarang | 13–5 | 72.22% |
| Gwynnn vs Jun | 11–5 | 68.75% |
| Gwynnn vs Law | 13–2 | 86.67% |
| Gwynnn vs Asuka | 11–4 | 73.33% |
| Gwynnn vs Zafina | 8–7 | 53.33% |
| Gwynnn vs Feng | 7–7 | 50.00% |
| Gwynnn vs Azucena | 10–4 | 71.43% |
| Gwynnn vs Lee | 6–7 | 46.15% |
| Gwynnn vs Reina | 7–6 | 53.85% |
| Gwynnn vs Lars | 2–10 | 16.67% |
| Gwynnn vs Leroy | 7–4 | 63.64% |
| Gwynnn vs Leo | 2–6 | 25.00% |
| Gwynnn vs Claudio | 3–5 | 37.50% |
| Gwynnn vs Xiaoyu | 5–2 | 71.43% |
| Gwynnn vs Alisa | 3–2 | 60.00% |
| Gwynnn vs Nina | 1–3 | 25.00% |
| Gwynnn vs Kuma | 2–2 | 50.00% |
| Gwynnn vs Raven | 1–3 | 25.00% |
| Gwynnn vs Jack-8 | 0–2 | 0.00% |
| Gwynnn vs Panda | 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.