A dictionary def of football has 'chiefly';
soccer - British English
Austrailain Rules - Australia WA, SA,Vic and Tasmania
Rugby League - Australia Qld., NSW
Rugby League or Rugby Union - Australia Qld., NSW

I'd put money on Americans using the term 'football' for their own sport, not soccer etc.

No, fully manual. I have found some to be tennis/netball/basketball courts. One was both rugby and soccer. Where I could not identify what sport was/is played there I left a fixme. Each and every pitch has been looked at using my eyes using Bing imagery. I have missed some! What do you expect of a human :)
"Football" means different things in different parts of the world. Most people in OSM use 'soccer' - look at taginfo for the rates of use. It is a clear value that cannot be confused with a 'generic' term like 'football'.

Ok,
I am slowly reducing sport=football tag to the appropriate football .. usually soccer in the UK. (Ausie rules in OZ, american_football in the USA)
It would be more acculturate to age it as
surface=astroturf
leisure=pitch
sport=soccer

and remove the name tag. That would be truth in tagging.

Way: 81158494
Corrected .. added more nodes ...Way was grossly distorted. I think this bot may add more errors than it merits running?

Hi,
Way Astroturf Football Pitch (353663776) does not appear in the bing imagery. Does it exist? And is the name really 'Astroturf Football Pitch'?

I have added the tag sport= to leisure=pitch where visible in bing. Where there is more than one pitch - then I have separated out the pitches - e.g. tennis courts - each court is best mapped individually - thus you can tell how many courts and there orientation.

Removed naming of tracks south of QAA line as 'Hay River Track'. One of these is the K1 line ... and has been for an extremely long time.

Hi, moved Node: Hillston Post Office (2302362776) to corner - as per LPI Base Map and Austpost website address. Imagery has this as a burnt out shell.. added fixme for survey confirmation (and address information. .

Further? the 'taginfo' report page on 'characters in keys' says "Any valid Unicode character can appear in an OSM key but usually only lower case latin letters (a-z) and the underscore (_) are used. The colon (:) is often used as a separator character. "

A 'tradition'? Well OSM does not conform! For example opening_hours=Mo-Su 08:00-23:00

Hi, changed sport=shot_put to sport=shot-put, British English rather than American. See sport=shot-put

Hi, following some discussion on the tagging list .. I have changed the tag sport=shot_put to sport=shot-put .. British English spelling rather than American. sport=shot-put

Hi,

Some of these are sports .. I have added what I think are appropriate sports to some - hammer_throw;discus_throw and shot-put. I am yet to document them on the OSM wiki. See what you think.
e.g. Way: 407435291

Hi,
changed the tags on this way to
name=Ballangharr Field
landuse=recreation_ground
leisure=pitch
sport=football
fixme=What kind of 'football? soccer, rugby?

The objection is to having the same tags on;

the relation, and

ways that are part of the relation.

From the wiki osm.wiki/Relation:multipolygon#Usage

" way(s) should be left untagged, unless they describe something in their own right. For example, a forest could be delineated by four fences, in which case the four ways would be tagged with the barrier tag, but could still be used as "outer" members of the forest relation."

My thinking is that I don't tag nodes that are part of a way with the same tags as the way .. so I should not tag ways that are part of a relation with the same tags as the relation.

I'm using overpass turbo with the wizard entry sport=football for the football... I think I have most of those done for OZ.. there are a great many in Europe though if you want to reduce their numbers.

I'm also targeting leisure=pitch without sport=* again using overpass turbo with the wizard entry leisure=pitch sport=*!

Hopefully this will add data to entries all ready on the data base and may get more sports on more renders. While I do that I look at the surrounding area for other things not in the data base. My thinking is - if it is not well mapped in one way .. it may also be missing stuff in the same area. I'm not targeting school buildings (at least not at the moment). I started this from netball .. there was no wiki entry .. so I made that .. then looked at the numbers .. then some 1,300 I have it now over 3,000 entries.

Thanks for pointing out the missing 'thing' aspect .. corrected, rather than removed.
I know they are there, The LPI base map confirms it.

I personal KNOW that 'Grassy Mountain' is known by that name in the local area. And it appears on the LPI base map.

And http://www.nationalparks.nsw.gov.au/visit-a-park/parks/Appletree-Aboriginal-Area

These tags are not redundant nor duplicates...

'Cremorne Oval' now looks to be be gone. there are two buildings over lapping it .. some tables and chairs ... way/47474686 .. tags removed .. note tag added.

Bing shows this building ... Way: 400524218

But LPI Imagery does not. Placed fixme on it.