| Fiachra vs Kazuya | 40–36 | 52.63% |
| Fiachra vs King | 41–21 | 66.13% |
| Fiachra vs Jin | 33–26 | 55.93% |
| Fiachra vs Miary Zo | 24–19 | 55.81% |
| Fiachra vs Paul | 22–17 | 56.41% |
| Fiachra vs Yoshimitsu | 21–17 | 55.26% |
| Fiachra vs Steve | 24–14 | 63.16% |
| Fiachra vs Heihachi | 24–14 | 63.16% |
| Fiachra vs Bryan | 23–14 | 62.16% |
| Fiachra vs Dragunov | 27–6 | 81.82% |
| Fiachra vs Reina | 19–14 | 57.58% |
| Fiachra vs Law | 19–10 | 65.52% |
| Fiachra vs Hwoarang | 22–6 | 78.57% |
| Fiachra vs Lili | 20–8 | 71.43% |
| Fiachra vs Nina | 22–4 | 84.62% |
| Fiachra vs Devil Jin | 17–5 | 77.27% |
| Fiachra vs Fahkumram | 15–7 | 68.18% |
| Fiachra vs Jun | 11–10 | 52.38% |
| Fiachra vs Lee | 8–11 | 42.11% |
| Fiachra vs Clive | 12–7 | 63.16% |
| Fiachra vs Xiaoyu | 8–10 | 44.44% |
| Fiachra vs Jack-8 | 13–5 | 72.22% |
| Fiachra vs Asuka | 11–6 | 64.71% |
| Fiachra vs Victor | 10–7 | 58.82% |
| Fiachra vs Lidia | 10–7 | 58.82% |
| Fiachra vs Feng | 10–5 | 66.67% |
| Fiachra vs Leo | 7–8 | 46.67% |
| Fiachra vs Eddy | 11–4 | 73.33% |
| Fiachra vs Lars | 8–6 | 57.14% |
| Fiachra vs Zafina | 6–8 | 42.86% |
| Fiachra vs Azucena | 10–4 | 71.43% |
| Fiachra vs Raven | 11–3 | 78.57% |
| Fiachra vs Alisa | 7–4 | 63.64% |
| Fiachra vs Leroy | 6–4 | 60.00% |
| Fiachra vs Anna | 7–3 | 70.00% |
| Fiachra vs Armor King | 3–7 | 30.00% |
| Fiachra vs Shaheen | 4–5 | 44.44% |
| Fiachra vs Claudio | 5–2 | 71.43% |
| Fiachra vs Kuma | 4–3 | 57.14% |
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.