| Speedyskull vs King | 7–6 | 53.85% |
| Speedyskull vs Jin | 8–5 | 61.54% |
| Speedyskull vs Hwoarang | 5–3 | 62.50% |
| Speedyskull vs Law | 4–3 | 57.14% |
| Speedyskull vs Kazuya | 3–4 | 42.86% |
| Speedyskull vs Steve | 5–2 | 71.43% |
| Speedyskull vs Paul | 1–4 | 20.00% |
| Speedyskull vs Bryan | 3–2 | 60.00% |
| Speedyskull vs Asuka | 2–2 | 50.00% |
| Speedyskull vs Jun | 2–2 | 50.00% |
| Speedyskull vs Victor | 3–1 | 75.00% |
| Speedyskull vs Yoshimitsu | 2–1 | 66.67% |
| Speedyskull vs Feng | 1–2 | 33.33% |
| Speedyskull vs Lee | 0–3 | 0.00% |
| Speedyskull vs Azucena | 3–0 | 100.00% |
| Speedyskull vs Eddy | 1–2 | 33.33% |
| Speedyskull vs Jack-8 | 2–0 | 100.00% |
| Speedyskull vs Lili | 2–0 | 100.00% |
| Speedyskull vs Dragunov | 2–0 | 100.00% |
| Speedyskull vs Alisa | 0–2 | 0.00% |
| Speedyskull vs Reina | 1–1 | 50.00% |
| Speedyskull vs Raven | 2–0 | 100.00% |
| Speedyskull vs Fahkumram | 2–0 | 100.00% |
| Speedyskull vs Miary Zo | 2–0 | 100.00% |
| Speedyskull vs Claudio | 0–1 | 0.00% |
| Speedyskull vs Nina | 1–0 | 100.00% |
| Speedyskull vs Clive | 1–0 | 100.00% |
| Speedyskull vs Anna | 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.