| Killua_909 vs Jin | 96–89 | 51.89% |
| Killua_909 vs Bryan | 88–81 | 52.07% |
| Killua_909 vs Kazuya | 79–86 | 47.88% |
| Killua_909 vs Dragunov | 72–71 | 50.35% |
| Killua_909 vs King | 62–73 | 45.93% |
| Killua_909 vs Hwoarang | 54–68 | 44.26% |
| Killua_909 vs Lee | 65–45 | 59.09% |
| Killua_909 vs Heihachi | 50–43 | 53.76% |
| Killua_909 vs Law | 53–39 | 57.61% |
| Killua_909 vs Armor King | 42–45 | 48.28% |
| Killua_909 vs Steve | 27–40 | 40.30% |
| Killua_909 vs Yoshimitsu | 30–34 | 46.88% |
| Killua_909 vs Jun | 27–36 | 42.86% |
| Killua_909 vs Lars | 38–24 | 61.29% |
| Killua_909 vs Clive | 25–32 | 43.86% |
| Killua_909 vs Reina | 23–33 | 41.07% |
| Killua_909 vs Devil Jin | 24–30 | 44.44% |
| Killua_909 vs Jack-8 | 16–34 | 32.00% |
| Killua_909 vs Leo | 29–18 | 61.70% |
| Killua_909 vs Shaheen | 16–31 | 34.04% |
| Killua_909 vs Paul | 20–26 | 43.48% |
| Killua_909 vs Fahkumram | 26–16 | 61.90% |
| Killua_909 vs Azucena | 19–22 | 46.34% |
| Killua_909 vs Xiaoyu | 19–21 | 47.50% |
| Killua_909 vs Victor | 16–23 | 41.03% |
| Killua_909 vs Feng | 20–18 | 52.63% |
| Killua_909 vs Lidia | 15–23 | 39.47% |
| Killua_909 vs Anna | 19–18 | 51.35% |
| Killua_909 vs Raven | 17–19 | 47.22% |
| Killua_909 vs Miary Zo | 10–24 | 29.41% |
| Killua_909 vs Nina | 21–9 | 70.00% |
| Killua_909 vs Alisa | 11–18 | 37.93% |
| Killua_909 vs Leroy | 12–15 | 44.44% |
| Killua_909 vs Zafina | 11–15 | 42.31% |
| Killua_909 vs Lili | 11–13 | 45.83% |
| Killua_909 vs Eddy | 10–14 | 41.67% |
| Killua_909 vs Claudio | 12–10 | 54.55% |
| Killua_909 vs Asuka | 10–11 | 47.62% |
| Killua_909 vs Kuma | 1–8 | 11.11% |
| Killua_909 vs Panda | 1–3 | 25.00% |
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.