| Iudex Gundyr vs King | 11–22 | 33.33% |
| Iudex Gundyr vs Steve | 9–11 | 45.00% |
| Iudex Gundyr vs Fahkumram | 5–13 | 27.78% |
| Iudex Gundyr vs Bryan | 3–12 | 20.00% |
| Iudex Gundyr vs Lee | 8–7 | 53.33% |
| Iudex Gundyr vs Jin | 5–7 | 41.67% |
| Iudex Gundyr vs Law | 1–10 | 9.09% |
| Iudex Gundyr vs Lili | 1–10 | 9.09% |
| Iudex Gundyr vs Leo | 6–5 | 54.55% |
| Iudex Gundyr vs Kazuya | 4–5 | 44.44% |
| Iudex Gundyr vs Lars | 2–6 | 25.00% |
| Iudex Gundyr vs Leroy | 5–3 | 62.50% |
| Iudex Gundyr vs Jun | 2–6 | 25.00% |
| Iudex Gundyr vs Yoshimitsu | 2–5 | 28.57% |
| Iudex Gundyr vs Xiaoyu | 2–5 | 28.57% |
| Iudex Gundyr vs Reina | 5–2 | 71.43% |
| Iudex Gundyr vs Heihachi | 4–3 | 57.14% |
| Iudex Gundyr vs Nina | 4–2 | 66.67% |
| Iudex Gundyr vs Clive | 4–2 | 66.67% |
| Iudex Gundyr vs Anna | 0–6 | 0.00% |
| Iudex Gundyr vs Feng | 4–1 | 80.00% |
| Iudex Gundyr vs Dragunov | 0–5 | 0.00% |
| Iudex Gundyr vs Azucena | 2–3 | 40.00% |
| Iudex Gundyr vs Victor | 1–4 | 20.00% |
| Iudex Gundyr vs Paul | 1–3 | 25.00% |
| Iudex Gundyr vs Asuka | 1–3 | 25.00% |
| Iudex Gundyr vs Devil Jin | 0–4 | 0.00% |
| Iudex Gundyr vs Zafina | 3–1 | 75.00% |
| Iudex Gundyr vs Eddy | 1–3 | 25.00% |
| Iudex Gundyr vs Hwoarang | 1–2 | 33.33% |
| Iudex Gundyr vs Claudio | 0–3 | 0.00% |
| Iudex Gundyr vs Lidia | 3–0 | 100.00% |
| Iudex Gundyr vs Kuma | 0–2 | 0.00% |
| Iudex Gundyr vs Jack-8 | 1–0 | 100.00% |
| Iudex Gundyr vs Shaheen | 0–1 | 0.00% |
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.