| Sierrafria vs King | 32–53 | 37.65% |
| Sierrafria vs Steve | 29–31 | 48.33% |
| Sierrafria vs Reina | 27–29 | 48.21% |
| Sierrafria vs Jin | 25–29 | 46.30% |
| Sierrafria vs Kazuya | 22–25 | 46.81% |
| Sierrafria vs Bryan | 23–22 | 51.11% |
| Sierrafria vs Lili | 11–23 | 32.35% |
| Sierrafria vs Clive | 16–17 | 48.48% |
| Sierrafria vs Lars | 12–20 | 37.50% |
| Sierrafria vs Armor King | 13–19 | 40.62% |
| Sierrafria vs Dragunov | 4–26 | 13.33% |
| Sierrafria vs Jun | 12–17 | 41.38% |
| Sierrafria vs Xiaoyu | 9–18 | 33.33% |
| Sierrafria vs Law | 12–14 | 46.15% |
| Sierrafria vs Hwoarang | 13–12 | 52.00% |
| Sierrafria vs Fahkumram | 15–10 | 60.00% |
| Sierrafria vs Yoshimitsu | 14–10 | 58.33% |
| Sierrafria vs Azucena | 14–8 | 63.64% |
| Sierrafria vs Eddy | 6–15 | 28.57% |
| Sierrafria vs Devil Jin | 12–8 | 60.00% |
| Sierrafria vs Leroy | 6–11 | 35.29% |
| Sierrafria vs Anna | 7–10 | 41.18% |
| Sierrafria vs Leo | 4–12 | 25.00% |
| Sierrafria vs Paul | 3–12 | 20.00% |
| Sierrafria vs Heihachi | 7–7 | 50.00% |
| Sierrafria vs Kuma | 4–9 | 30.77% |
| Sierrafria vs Alisa | 5–6 | 45.45% |
| Sierrafria vs Lee | 4–6 | 40.00% |
| Sierrafria vs Zafina | 6–4 | 60.00% |
| Sierrafria vs Victor | 4–6 | 40.00% |
| Sierrafria vs Lidia | 7–3 | 70.00% |
| Sierrafria vs Asuka | 1–6 | 14.29% |
| Sierrafria vs Nina | 4–3 | 57.14% |
| Sierrafria vs Claudio | 4–2 | 66.67% |
| Sierrafria vs Shaheen | 0–4 | 0.00% |
| Sierrafria vs Raven | 2–2 | 50.00% |
| Sierrafria vs Feng | 0–2 | 0.00% |
| Sierrafria vs Panda | 0–2 | 0.00% |
| Sierrafria vs Miary Zo | 2–0 | 100.00% |
| Sierrafria vs Jack-8 | 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.