| SierraSam vs Law | 23–18 | 56.10% |
| SierraSam vs Kazuya | 21–20 | 51.22% |
| SierraSam vs Jin | 23–17 | 57.50% |
| SierraSam vs Paul | 21–18 | 53.85% |
| SierraSam vs Hwoarang | 24–13 | 64.86% |
| SierraSam vs King | 16–14 | 53.33% |
| SierraSam vs Bryan | 17–12 | 58.62% |
| SierraSam vs Jun | 17–11 | 60.71% |
| SierraSam vs Asuka | 13–11 | 54.17% |
| SierraSam vs Steve | 14–8 | 63.64% |
| SierraSam vs Lili | 15–6 | 71.43% |
| SierraSam vs Dragunov | 8–12 | 40.00% |
| SierraSam vs Alisa | 9–9 | 50.00% |
| SierraSam vs Heihachi | 4–14 | 22.22% |
| SierraSam vs Reina | 12–5 | 70.59% |
| SierraSam vs Clive | 3–12 | 20.00% |
| SierraSam vs Raven | 8–6 | 57.14% |
| SierraSam vs Yoshimitsu | 9–4 | 69.23% |
| SierraSam vs Xiaoyu | 8–4 | 66.67% |
| SierraSam vs Lee | 7–5 | 58.33% |
| SierraSam vs Eddy | 4–8 | 33.33% |
| SierraSam vs Lidia | 8–4 | 66.67% |
| SierraSam vs Victor | 4–6 | 40.00% |
| SierraSam vs Devil Jin | 6–3 | 66.67% |
| SierraSam vs Lars | 3–6 | 33.33% |
| SierraSam vs Nina | 7–2 | 77.78% |
| SierraSam vs Leroy | 7–2 | 77.78% |
| SierraSam vs Azucena | 3–6 | 33.33% |
| SierraSam vs Feng | 4–2 | 66.67% |
| SierraSam vs Shaheen | 2–2 | 50.00% |
| SierraSam vs Fahkumram | 1–3 | 25.00% |
| SierraSam vs Jack-8 | 2–1 | 66.67% |
| SierraSam vs Panda | 1–1 | 50.00% |
| SierraSam vs Anna | 1–1 | 50.00% |
| SierraSam vs Claudio | 0–1 | 0.00% |
| SierraSam vs Kuma | 1–0 | 100.00% |
| SierraSam vs Zafina | 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.