| Space Jack vs Jin | 30–30 | 50.00% |
| Space Jack vs Law | 19–20 | 48.72% |
| Space Jack vs Bryan | 22–11 | 66.67% |
| Space Jack vs Kazuya | 22–11 | 66.67% |
| Space Jack vs King | 18–12 | 60.00% |
| Space Jack vs Eddy | 17–13 | 56.67% |
| Space Jack vs Reina | 13–9 | 59.09% |
| Space Jack vs Steve | 12–8 | 60.00% |
| Space Jack vs Yoshimitsu | 11–8 | 57.89% |
| Space Jack vs Hwoarang | 16–3 | 84.21% |
| Space Jack vs Dragunov | 4–15 | 21.05% |
| Space Jack vs Armor King | 10–9 | 52.63% |
| Space Jack vs Paul | 7–11 | 38.89% |
| Space Jack vs Azucena | 16–2 | 88.89% |
| Space Jack vs Jun | 9–6 | 60.00% |
| Space Jack vs Lili | 5–7 | 41.67% |
| Space Jack vs Lars | 2–10 | 16.67% |
| Space Jack vs Victor | 7–5 | 58.33% |
| Space Jack vs Anna | 8–4 | 66.67% |
| Space Jack vs Xiaoyu | 6–5 | 54.55% |
| Space Jack vs Asuka | 4–7 | 36.36% |
| Space Jack vs Alisa | 8–3 | 72.73% |
| Space Jack vs Feng | 3–7 | 30.00% |
| Space Jack vs Heihachi | 3–7 | 30.00% |
| Space Jack vs Devil Jin | 8–0 | 100.00% |
| Space Jack vs Leroy | 4–4 | 50.00% |
| Space Jack vs Clive | 4–3 | 57.14% |
| Space Jack vs Nina | 3–3 | 50.00% |
| Space Jack vs Jack-8 | 2–2 | 50.00% |
| Space Jack vs Leo | 2–2 | 50.00% |
| Space Jack vs Claudio | 3–1 | 75.00% |
| Space Jack vs Lee | 2–2 | 50.00% |
| Space Jack vs Kuma | 3–1 | 75.00% |
| Space Jack vs Lidia | 2–1 | 66.67% |
| Space Jack vs Panda | 2–0 | 100.00% |
| Space Jack vs Zafina | 0–2 | 0.00% |
| Space Jack vs Raven | 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.