| IamSpaceMan21 vs King | 11–17 | 39.29% |
| IamSpaceMan21 vs Reina | 19–9 | 67.86% |
| IamSpaceMan21 vs Eddy | 6–16 | 27.27% |
| IamSpaceMan21 vs Azucena | 11–6 | 64.71% |
| IamSpaceMan21 vs Steve | 12–4 | 75.00% |
| IamSpaceMan21 vs Law | 11–4 | 73.33% |
| IamSpaceMan21 vs Hwoarang | 5–8 | 38.46% |
| IamSpaceMan21 vs Bryan | 11–2 | 84.62% |
| IamSpaceMan21 vs Dragunov | 7–6 | 53.85% |
| IamSpaceMan21 vs Asuka | 8–4 | 66.67% |
| IamSpaceMan21 vs Leo | 9–3 | 75.00% |
| IamSpaceMan21 vs Kazuya | 7–4 | 63.64% |
| IamSpaceMan21 vs Lili | 4–7 | 36.36% |
| IamSpaceMan21 vs Victor | 4–6 | 40.00% |
| IamSpaceMan21 vs Raven | 7–3 | 70.00% |
| IamSpaceMan21 vs Yoshimitsu | 6–3 | 66.67% |
| IamSpaceMan21 vs Jin | 5–4 | 55.56% |
| IamSpaceMan21 vs Jun | 4–5 | 44.44% |
| IamSpaceMan21 vs Devil Jin | 2–6 | 25.00% |
| IamSpaceMan21 vs Feng | 3–5 | 37.50% |
| IamSpaceMan21 vs Kuma | 4–4 | 50.00% |
| IamSpaceMan21 vs Claudio | 4–3 | 57.14% |
| IamSpaceMan21 vs Lee | 2–5 | 28.57% |
| IamSpaceMan21 vs Nina | 4–1 | 80.00% |
| IamSpaceMan21 vs Xiaoyu | 2–2 | 50.00% |
| IamSpaceMan21 vs Jack-8 | 3–1 | 75.00% |
| IamSpaceMan21 vs Alisa | 0–4 | 0.00% |
| IamSpaceMan21 vs Panda | 3–1 | 75.00% |
| IamSpaceMan21 vs Paul | 3–0 | 100.00% |
| IamSpaceMan21 vs Shaheen | 1–2 | 33.33% |
| IamSpaceMan21 vs Zafina | 2–1 | 66.67% |
| IamSpaceMan21 vs Lars | 0–2 | 0.00% |
| IamSpaceMan21 vs Leroy | 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.