| Hydro vs Reina | 18–4 | 81.82% |
| Hydro vs King | 10–6 | 62.50% |
| Hydro vs Jun | 7–8 | 46.67% |
| Hydro vs Yoshimitsu | 7–3 | 70.00% |
| Hydro vs Steve | 6–4 | 60.00% |
| Hydro vs Heihachi | 7–3 | 70.00% |
| Hydro vs Hwoarang | 7–2 | 77.78% |
| Hydro vs Claudio | 7–2 | 77.78% |
| Hydro vs Law | 6–2 | 75.00% |
| Hydro vs Kazuya | 5–3 | 62.50% |
| Hydro vs Dragunov | 6–2 | 75.00% |
| Hydro vs Eddy | 4–4 | 50.00% |
| Hydro vs Lili | 6–1 | 85.71% |
| Hydro vs Leo | 1–4 | 20.00% |
| Hydro vs Jin | 2–2 | 50.00% |
| Hydro vs Bryan | 0–4 | 0.00% |
| Hydro vs Alisa | 4–0 | 100.00% |
| Hydro vs Lee | 3–1 | 75.00% |
| Hydro vs Zafina | 4–0 | 100.00% |
| Hydro vs Azucena | 4–0 | 100.00% |
| Hydro vs Victor | 3–1 | 75.00% |
| Hydro vs Lidia | 0–4 | 0.00% |
| Hydro vs Paul | 2–1 | 66.67% |
| Hydro vs Jack-8 | 2–1 | 66.67% |
| Hydro vs Leroy | 1–2 | 33.33% |
| Hydro vs Xiaoyu | 2–0 | 100.00% |
| Hydro vs Devil Jin | 2–0 | 100.00% |
| Hydro vs Lars | 2–0 | 100.00% |
| Hydro vs Kuma | 2–0 | 100.00% |
| Hydro vs Panda | 2–0 | 100.00% |
| Hydro vs Clive | 0–2 | 0.00% |
| Hydro vs Anna | 0–2 | 0.00% |
| Hydro vs Fahkumram | 2–0 | 100.00% |
| Hydro vs Armor King | 2–0 | 100.00% |
| Hydro vs Raven | 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.