| Based_Iahveh vs King | 32–52 | 38.10% |
| Based_Iahveh vs Jin | 33–43 | 43.42% |
| Based_Iahveh vs Steve | 21–27 | 43.75% |
| Based_Iahveh vs Eddy | 15–26 | 36.59% |
| Based_Iahveh vs Reina | 19–18 | 51.35% |
| Based_Iahveh vs Yoshimitsu | 19–16 | 54.29% |
| Based_Iahveh vs Lili | 13–22 | 37.14% |
| Based_Iahveh vs Kazuya | 15–18 | 45.45% |
| Based_Iahveh vs Hwoarang | 14–15 | 48.28% |
| Based_Iahveh vs Law | 9–18 | 33.33% |
| Based_Iahveh vs Dragunov | 9–18 | 33.33% |
| Based_Iahveh vs Miary Zo | 10–15 | 40.00% |
| Based_Iahveh vs Armor King | 7–14 | 33.33% |
| Based_Iahveh vs Azucena | 7–13 | 35.00% |
| Based_Iahveh vs Bryan | 9–10 | 47.37% |
| Based_Iahveh vs Asuka | 6–12 | 33.33% |
| Based_Iahveh vs Heihachi | 3–15 | 16.67% |
| Based_Iahveh vs Jun | 4–13 | 23.53% |
| Based_Iahveh vs Devil Jin | 5–7 | 41.67% |
| Based_Iahveh vs Fahkumram | 6–5 | 54.55% |
| Based_Iahveh vs Feng | 2–8 | 20.00% |
| Based_Iahveh vs Lidia | 2–8 | 20.00% |
| Based_Iahveh vs Anna | 2–8 | 20.00% |
| Based_Iahveh vs Alisa | 1–8 | 11.11% |
| Based_Iahveh vs Nina | 2–7 | 22.22% |
| Based_Iahveh vs Xiaoyu | 4–4 | 50.00% |
| Based_Iahveh vs Victor | 4–4 | 50.00% |
| Based_Iahveh vs Kuma | 3–4 | 42.86% |
| Based_Iahveh vs Paul | 2–4 | 33.33% |
| Based_Iahveh vs Clive | 2–4 | 33.33% |
| Based_Iahveh vs Lee | 2–3 | 40.00% |
| Based_Iahveh vs Leroy | 1–4 | 20.00% |
| Based_Iahveh vs Jack-8 | 1–2 | 33.33% |
| Based_Iahveh vs Lars | 1–2 | 33.33% |
| Based_Iahveh vs Zafina | 2–1 | 66.67% |
| Based_Iahveh vs Leo | 0–2 | 0.00% |
| Based_Iahveh vs Claudio | 1–1 | 50.00% |
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.