| Shalfey vs Kazuya | 275–239 | 53.50% |
| Shalfey vs Jin | 247–221 | 52.78% |
| Shalfey vs Bryan | 204–207 | 49.64% |
| Shalfey vs Hwoarang | 185–139 | 57.10% |
| Shalfey vs Paul | 163–133 | 55.07% |
| Shalfey vs Dragunov | 144–138 | 51.06% |
| Shalfey vs Reina | 161–121 | 57.09% |
| Shalfey vs King | 132–145 | 47.65% |
| Shalfey vs Steve | 133–123 | 51.95% |
| Shalfey vs Heihachi | 103–145 | 41.53% |
| Shalfey vs Yoshimitsu | 104–128 | 44.83% |
| Shalfey vs Law | 103–122 | 45.78% |
| Shalfey vs Devil Jin | 118–96 | 55.14% |
| Shalfey vs Lili | 93–100 | 48.19% |
| Shalfey vs Lee | 99–88–1 | 52.94% |
| Shalfey vs Fahkumram | 74–73 | 50.34% |
| Shalfey vs Nina | 74–66 | 52.86% |
| Shalfey vs Azucena | 70–70 | 50.00% |
| Shalfey vs Asuka | 65–73 | 47.10% |
| Shalfey vs Victor | 68–64 | 51.52% |
| Shalfey vs Jun | 47–84 | 35.88% |
| Shalfey vs Feng | 67–63 | 51.54% |
| Shalfey vs Lars | 62–66 | 48.44% |
| Shalfey vs Leroy | 55–64 | 46.22% |
| Shalfey vs Alisa | 58–59 | 49.57% |
| Shalfey vs Clive | 43–54 | 44.33% |
| Shalfey vs Xiaoyu | 58–37 | 61.05% |
| Shalfey vs Claudio | 51–43 | 54.26% |
| Shalfey vs Jack-8 | 42–38 | 52.50% |
| Shalfey vs Eddy | 28–41 | 40.58% |
| Shalfey vs Leo | 26–42 | 38.24% |
| Shalfey vs Shaheen | 32–36 | 47.06% |
| Shalfey vs Raven | 24–28 | 46.15% |
| Shalfey vs Lidia | 22–30 | 42.31% |
| Shalfey vs Kuma | 22–27 | 44.90% |
| Shalfey vs Zafina | 14–28 | 33.33% |
| Shalfey vs Armor King | 6–27 | 18.18% |
| Shalfey vs Anna | 6–9 | 40.00% |
| Shalfey vs Panda | 5–6 | 45.45% |
| Shalfey vs Miary Zo | 0–2 | 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.