| Heyspaceman vs King | 9–11 | 45.00% |
| Heyspaceman vs Kazuya | 8–6 | 57.14% |
| Heyspaceman vs Jin | 7–6 | 53.85% |
| Heyspaceman vs Steve | 7–6 | 53.85% |
| Heyspaceman vs Azucena | 6–7 | 46.15% |
| Heyspaceman vs Bryan | 8–4 | 66.67% |
| Heyspaceman vs Law | 4–7 | 36.36% |
| Heyspaceman vs Jun | 8–3 | 72.73% |
| Heyspaceman vs Hwoarang | 5–5 | 50.00% |
| Heyspaceman vs Dragunov | 4–5 | 44.44% |
| Heyspaceman vs Leroy | 4–5 | 44.44% |
| Heyspaceman vs Lili | 3–5 | 37.50% |
| Heyspaceman vs Jack-8 | 5–2 | 71.43% |
| Heyspaceman vs Lee | 6–1 | 85.71% |
| Heyspaceman vs Raven | 1–6 | 14.29% |
| Heyspaceman vs Leo | 4–2 | 66.67% |
| Heyspaceman vs Zafina | 2–4 | 33.33% |
| Heyspaceman vs Victor | 2–4 | 33.33% |
| Heyspaceman vs Yoshimitsu | 1–4 | 20.00% |
| Heyspaceman vs Xiaoyu | 1–4 | 20.00% |
| Heyspaceman vs Lars | 1–4 | 20.00% |
| Heyspaceman vs Reina | 3–2 | 60.00% |
| Heyspaceman vs Eddy | 0–5 | 0.00% |
| Heyspaceman vs Feng | 4–0 | 100.00% |
| Heyspaceman vs Claudio | 1–2 | 33.33% |
| Heyspaceman vs Nina | 1–2 | 33.33% |
| Heyspaceman vs Alisa | 0–2 | 0.00% |
| Heyspaceman vs Shaheen | 0–2 | 0.00% |
| Heyspaceman vs Panda | 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.