| Hermaszewski vs Kazuya | 15–9 | 62.50% |
| Hermaszewski vs King | 15–3 | 83.33% |
| Hermaszewski vs Hwoarang | 16–2 | 88.89% |
| Hermaszewski vs Paul | 9–5 | 64.29% |
| Hermaszewski vs Xiaoyu | 6–4 | 60.00% |
| Hermaszewski vs Reina | 5–3 | 62.50% |
| Hermaszewski vs Yoshimitsu | 4–3 | 57.14% |
| Hermaszewski vs Bryan | 3–4 | 42.86% |
| Hermaszewski vs Feng | 6–1 | 85.71% |
| Hermaszewski vs Jin | 2–4 | 33.33% |
| Hermaszewski vs Jack-8 | 4–2 | 66.67% |
| Hermaszewski vs Dragunov | 4–2 | 66.67% |
| Hermaszewski vs Victor | 4–2 | 66.67% |
| Hermaszewski vs Asuka | 3–2 | 60.00% |
| Hermaszewski vs Claudio | 3–2 | 60.00% |
| Hermaszewski vs Azucena | 2–3 | 40.00% |
| Hermaszewski vs Law | 1–3 | 25.00% |
| Hermaszewski vs Devil Jin | 1–3 | 25.00% |
| Hermaszewski vs Eddy | 3–1 | 75.00% |
| Hermaszewski vs Steve | 3–0 | 100.00% |
| Hermaszewski vs Lili | 3–0 | 100.00% |
| Hermaszewski vs Kuma | 2–1 | 66.67% |
| Hermaszewski vs Leo | 1–1 | 50.00% |
| Hermaszewski vs Lars | 2–0 | 100.00% |
| Hermaszewski vs Jun | 2–0 | 100.00% |
| Hermaszewski vs Alisa | 1–0 | 100.00% |
| Hermaszewski vs Nina | 0–1 | 0.00% |
| Hermaszewski vs Leroy | 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.