| Hydra_Head vs King | 20–40 | 33.33% |
| Hydra_Head vs Steve | 16–31 | 34.04% |
| Hydra_Head vs Reina | 21–20 | 51.22% |
| Hydra_Head vs Armor King | 15–25 | 37.50% |
| Hydra_Head vs Hwoarang | 10–27 | 27.03% |
| Hydra_Head vs Jin | 10–27 | 27.03% |
| Hydra_Head vs Law | 11–21 | 34.38% |
| Hydra_Head vs Azucena | 15–16 | 48.39% |
| Hydra_Head vs Fahkumram | 11–18 | 37.93% |
| Hydra_Head vs Kazuya | 13–15 | 46.43% |
| Hydra_Head vs Asuka | 4–23 | 14.81% |
| Hydra_Head vs Jun | 10–17 | 37.04% |
| Hydra_Head vs Victor | 8–18 | 30.77% |
| Hydra_Head vs Yoshimitsu | 14–10 | 58.33% |
| Hydra_Head vs Nina | 8–14 | 36.36% |
| Hydra_Head vs Dragunov | 9–12 | 42.86% |
| Hydra_Head vs Clive | 11–10 | 52.38% |
| Hydra_Head vs Lili | 6–14 | 30.00% |
| Hydra_Head vs Leo | 5–13 | 27.78% |
| Hydra_Head vs Anna | 3–13 | 18.75% |
| Hydra_Head vs Bryan | 2–12 | 14.29% |
| Hydra_Head vs Lidia | 4–9 | 30.77% |
| Hydra_Head vs Kuma | 3–9 | 25.00% |
| Hydra_Head vs Raven | 6–6 | 50.00% |
| Hydra_Head vs Eddy | 5–7 | 41.67% |
| Hydra_Head vs Paul | 3–8 | 27.27% |
| Hydra_Head vs Xiaoyu | 1–10 | 9.09% |
| Hydra_Head vs Shaheen | 7–3 | 70.00% |
| Hydra_Head vs Feng | 1–8 | 11.11% |
| Hydra_Head vs Lee | 3–6 | 33.33% |
| Hydra_Head vs Lars | 4–4 | 50.00% |
| Hydra_Head vs Devil Jin | 3–4 | 42.86% |
| Hydra_Head vs Alisa | 1–5 | 16.67% |
| Hydra_Head vs Claudio | 2–4 | 33.33% |
| Hydra_Head vs Heihachi | 5–1 | 83.33% |
| Hydra_Head vs Miary Zo | 3–3 | 50.00% |
| Hydra_Head vs Jack-8 | 0–5 | 0.00% |
| Hydra_Head vs Zafina | 1–2 | 33.33% |
| Hydra_Head vs Leroy | 1–2 | 33.33% |
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.