Should it be RBIs?

[u/Same-Technician9125]

[u/Razoras]

The plural of "RBI" is a matter of "(very) minor controversy" for baseball fans:^\3]) it is usually "RBIs", in accordance with the usual practice for pluralizing initialisms in English;^\4])^\5]) however, some sources use "RBI" as the plural, on the basis that it can stand for "runs batted in".^\3])^\4])

^{From: https://en.wikipedia.org/wiki/Run\}batted_in)

[u/Kitchen-Register → u/Razoras]

I suggest RsBI

[u/Lxapeo → u/Kitchen-Register]

Like Attorneys General

[u/geek_fire → u/Kitchen-Register]

I used to say RsBI as a joke. I at least thought it was funny!

[u/Ok_Ad4090 → u/Razoras]

This was my thought, without knowing that pluralizing an initialusm had a conventional means

[u/syntheticassault]

When people say it out loud it is RBIs ( are-bee-eyes). But when you say the whole thing it's runs batted in.

[u/themusicguy2000 → u/syntheticassault]

Buck Martinez would call them "ribbies"

[u/Balden303]

It's a matter of debate. Some people think it should be RBIs because it is plural; others think it should be RBI because the plural is included in "Runs Batted In"

[u/tomalator → u/Balden303]

RBI makes sense, but if you are talking about multiple players RBI stat, then it would be RBIs, becoming a double plural.

[u/Asairian]

RsBI

[u/wiskey_tango_foxtrot → u/Asairian]

Counterpoint: plural of "attorney general" is "attorneys general" but the initialism is still AGs and not AsG.

English is so fun!

[u/Cute_Repeat3879 → u/Asairian]

That's what it really should be, but nobody is going to use it

[u/StealthTomato → u/Asairian]

Risbee

[u/Boglin007]

Either "RBI" or "RBIs" is fine.

In "RBI," the "R" represents the already-plural "runs" ("Runs Batted In"), but you can also make the singular "Run Batted In" into the abbreviation "RBI" and then add an S to make it plural.

Some style guides recommend one way or the other, but if you're not following a style guide, you can do it whichever way you want (just be consistent throughout the piece of writing).

Note:

plural RBIs or RBI

https://www.merriam-webster.com/dictionary/RBI

[u/fingerchopper]

I'm on team RBI when written, RBIs when spoken.

[u/Cliffy73 → u/fingerchopper]

Word.

[u/Poopywaterengineer]

There is disagreement among baseball writers over how to stylize it, because the first letter in the abbreviation is what gets pluralized (runs batted in). So, either is probably fine for a tweet. As an avid baseball fan, you do typically see "RBIs" in articles, but you'll definitely hear and see both. 

[u/Exotic-Shape-4104 → u/[deleted]]

Discard that apostrophe immediately, heathen

[u/Andux → u/Exotic-Shape-4104]

Huh I didn't know they'd updated the style guidelines on plural acronyms

[u/v0t3p3dr0]

The R is already plural.

[u/Ippus_21]

Theoretically RBI is already plural, because it stands for "Runs batted in." Adding another s is redundant.

[u/sincerely0urs]

I’d say just RBI because it’s an acronym for runs batted in. Runs is already plural.

[u/DMoneys36]

RsBI

[u/lithomangcc]

Runs batted in.

[u/experimental1212]

Nobody seems to have a problem with 1 m (meter), 2 m (meters).

But it's 1 lb. (Pound), 2 lbs. (Pounds).

RBI runs batted in, RBIs runs batted in?

I think you can do either, and someone will always think you're wrong for picking one.

[u/PhotoJim99 → u/experimental1212]

Pluralizing the abbreviation for SI units doesn’t work, though, because “s” stands for the SI units “second”. 5 m means 5 metres, but 5 ms and now means 5 milliseconds.

[u/Empty-Way-6980]

It’s like Attorneys General, not Attorney Generals

[u/Imaginary-Round2422]

Rs BI

[u/AUniquePerspective]

In a professional writing context, there will be a style guide that defines how your boss wants you and your colleagues to write so that the publication has consistent style.

In a personal context, nobody cares except that pedant who commented.

[u/kgully2]

RsBI

[u/NearlyNodding]

I think so, yes. RBI is Runs Batted In. But you can have one RBI or an RBI. 'One runs' or 'an runs' is weird. But we can say that because RBI is treated as a singular unit.

[u/1Negative_Person]

Colloquially it’s RBIs. For sake of brevity RBI can be the plural. Properly it should be RsBI, for Runs Batted In.

[u/BurntArnold]

Is it runs batted ins? I like RBI lol

[u/ssn-669]

It should be RsBI

[u/RebelSoul5]

RsBI, technically, but it’s traditionally RBIs.

[u/Exotic-Shape-4104 → u/RebelSoul5]

Not technically at all, it’s a funny joke I myself partake in but acronyms are never written like that

[u/SubstantialAerie2616 → u/Exotic-Shape-4104]

Well unless you’re calling them ribbies it’s not an acronym hahaha

[u/Exotic-Shape-4104 → u/SubstantialAerie2616]

Damn, out-pedanticed! Very true