| Klaatu vs Jin | 19–5 | 79.17% |
| Klaatu vs Reina | 14–9 | 60.87% |
| Klaatu vs Kazuya | 10–10 | 50.00% |
| Klaatu vs Eddy | 6–14 | 30.00% |
| Klaatu vs Steve | 11–8 | 57.89% |
| Klaatu vs Hwoarang | 12–6 | 66.67% |
| Klaatu vs Law | 10–5 | 66.67% |
| Klaatu vs King | 9–5 | 64.29% |
| Klaatu vs Paul | 5–4 | 55.56% |
| Klaatu vs Jun | 6–3 | 66.67% |
| Klaatu vs Yoshimitsu | 3–4 | 42.86% |
| Klaatu vs Dragunov | 5–2 | 71.43% |
| Klaatu vs Lars | 4–3 | 57.14% |
| Klaatu vs Alisa | 2–5 | 28.57% |
| Klaatu vs Shaheen | 7–0 | 100.00% |
| Klaatu vs Lidia | 2–5 | 28.57% |
| Klaatu vs Xiaoyu | 4–2 | 66.67% |
| Klaatu vs Jack-8 | 4–2 | 66.67% |
| Klaatu vs Devil Jin | 3–3 | 50.00% |
| Klaatu vs Zafina | 6–0 | 100.00% |
| Klaatu vs Bryan | 2–3 | 40.00% |
| Klaatu vs Lili | 1–4 | 20.00% |
| Klaatu vs Leroy | 3–2 | 60.00% |
| Klaatu vs Azucena | 1–4 | 20.00% |
| Klaatu vs Raven | 2–3 | 40.00% |
| Klaatu vs Asuka | 2–2 | 50.00% |
| Klaatu vs Victor | 2–2 | 50.00% |
| Klaatu vs Leo | 1–2 | 33.33% |
| Klaatu vs Claudio | 1–2 | 33.33% |
| Klaatu vs Nina | 3–0 | 100.00% |
| Klaatu vs Lee | 2–1 | 66.67% |
| Klaatu vs Feng | 0–2 | 0.00% |
| Klaatu vs Kuma | 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.