As a Fiora main for a quite some seaons i must say most of these matchups simply arent correct.
this is an easy matchup for Fiora as long as she doesnt die to his lucky crits lvl 1-3. Let me expand on that, at level 6 and beyond all Fiora needs to do is hit all 4 vitals, get her victory zone and tryndamere is either forced to keep AAing her in her victory zone in which she heals more than his damage or run away in which case Fiora will catch up. Another vital reason this is a rather easy matchup for Fiora is due to her W completely fking over tryndamere's AS and MS the former being more important during a 1v1.
this is not a matchup i get often but when i do its not that hard, if fiora saves her W for akali's Q auto proc and perhaps the gunblade if shes lucky, this becomes really onesided. Regarding Akali's W shroud though, Fiora can still hit the vitals with her Q dash as it hits stealthed enemies too. Overall though, haven't played this matchup enough to know for sure who it favours.
Sounds like an easy matchup for Fiora, what does Diana need to hit for her to get big dmg? her Q, Fiora can easily parry that.
Furthermore if Fiora decides to parry Dianas E or W not sure which one (the one that brings enemies to her) then the Diana in turn gets stunned and shes likely dead due to Fiora being able to chase easily and proc 2 vitals during the duration of the stun. Diana's burst simply isnt enough, and can be easily parried overall.
Gnar is only annoying to face when hes in his mini gnar form during lane, however he inevitably becomes mega gnar at some point and that's when hes really easy to kill as Fiora, gnar has 2 stuns, his W being extremely predictable and his R being possible to parry too if the fiora has fast reaction time. Gnar usually dies at this point or might get out with kiting either way. Also a tip use fioras W in lane when gnar is about to hit his 3rd hit passive.
with this one i'll agree with you for sure, Kennen fks over fiora in lane and can definitely 1v1 him and come out on top however this is only during lane phase once fiora hits 2-3 items the kennen loses almost always if they have around even gold or at least not too much of a difference. one thing to note here though is one of the key reasons kennen beats fiora in lane is because its 100% impossible for Fiora to W kennens stuns.
Agreed, skill matchup if Fiora blocks the stun she wins, if not Irelia wins (unless one of them heavily misplays). after 3 + items its always in fioras favour.
Exact same as Irelia above.
Almost same as gnar, with this one though, her ult completely denies yours and youd find yourself AAing her vitals and not a single one procing, very annoying as you get harrassed in lane too. Better buy Dorans shield and pray for a jungle gank.
If anyone had the intention of playing LB into Fiora, do not. This is awful for leblanc. Leblancs most popular build being gunblade + lichbane only gives her 10 CDR meaning she has cannot spam W as much at all. use lb E on fiora you say? It's the same as saying " fiora pls come stun me so you can kill me after" the reason Fiora works so well against LB is because she can almost never get rooted ( unless Fiora W is on CD or lb uses RE too) but also the fact Fioras passive blocks the LB passive dmg.
not much happening in this matchup, i've faced fed Shyvanas as fiora, its really onesided heavily in Fioras favour.
Funnily enough, i've actually played Fiora mid couple times simply because they blindpicked Veigar. Veigar is an extremely easy matchup for Fiora at all stages in the game. because Veigar can never stun the fiora.. if fiora sees the cage and shes right in the middle of it theres a cool trick you can do on her which is to QW into the cage, immediately stunning the veigar and then oneshotting him afterwards. Legit probably one of the worst matchups for veigar. However if he did hit his stun somehow, Fiora can just W the veigar ult as due to merc treads she gets out of the stun before the veigar R or other abilties actually reach her.
This is a matchup i almost never have but if the game does get to lategame and i see myself facing a lvl 18 vayne it goes either way, If the vayne tumbles in the right direction and Fioras Q goes the other way, vayne wins.
If fiora parries the vayne condemn, fiora wins ( doesnt matter if the condemn was going to be a stun or not)
All these matchups are from what i've gathered having mained fiora for multiple seasons and so I feel they're pretty accurate.
If you do want some matchups that genuinely fk over fiora bigtime in lane phase and outside of it here you go
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Nothing fiora can do here, If yi alpha strikes fiora Q its 100% over for the fiora, YI will crit ur ass, go untargetable meaning you cannot hit his vitals.
Only during lane, buy dorans shield here and play safe, give up some CS if youre fiora and post 3 items its easy.
sounds weird but twice now ive gotten rekt by a random mordekaiser. Granted i have 0 knowledge of what his abilities do, he seems rather strong against fiora.. cannot describe it.
If renek manages to kill fiora during his superior earlygame its pretty much over unless game goes to late.
Doesn't beat Fiora in the sense that he gets solo kills over and over, but this champion is just something special, his AS reduction and innate tankiness is just something Fiora genuinely struggles against during lane. Also his ult is near impossible to parry if cast from close range.
Great champion to beat Fiora with earlygame and keep her behind big time.
can be a great pick as his pool is similar to Kayles ultimate and he can just poke + heal up constantly.
Fiora may be one of the best duelist in the game that can turn 1v1's or even 1v2's around but she will struggle in teamfights to ult a target and consistently manage to hit all 4 or even 3 of his vitals during a all out 5v5. If fiora uses her W for nothing or simply has it on Cd its really hard for her to do anything at all as she can easily get oneshot.
Fiora doesnt bring as much to teamfights as let's say Galio might do, but she makes up for that by being stronger in 1v1's.
That being said, i do agree she might need some tuning, shes extremely strong right now and i'm not able to pick Fiora much anymore as shes almost always banned.
works better.
, you will still need a defensive armor hp item tho. like 
as 3rd or 4th item (even if she does some true damage, you need a way to survive the non true damage too)
(for sustained dps) while doing her spell rotations.
and 
and 
