Antique market in Tokyo area on Saturdays

We are interested in visiting antique markets in Tokyo area, particularly Ohi racetrack Flea Market in Shinagawa on Saturday in October and wondered whether it will be open. How about the Big Meiji Park Flea Market near Kokuritsukyogijo Station? Any other flea markets open on Saturday?
Any advice appreciated.

Time of October, do you're in Tokyo?
Do you have all month?

Oct. 18 and 25. Thanks.

October 18
Ohi Racecourse
9:00 to 15:00, about 600 shop
Shinjuku Central Park
9:00 to 15:00, about 200 shop
Shinjuku Mitsui Building 55 Square Ladies
8:30 to 15:00, about 100 shop
Yoyogi Park (NPO Festival)
10:00 to 16:00, about 250 shop
Shinagawa Intercity
10:00 to 16:00, about 170 shop
October 19
Ohi Racecourse
9:00 to 15:00, about 600 shop
Komazawa Olympic Park
9:00 to 15:00, about 200 shop
Yoyogi Park (NPO Festival)
10:00 to 16:00, about 250 shop
Shinagawa Intercity
10:00 to 16:00, about 170 shop
Chofu "Ajinomoto Stadium" BIG Flea Market
10:00 to 16:00, about 400 shop
Tokyo Dome Prism Hall
10:00 to 16:00, about 300 shop
October 25
Ohi Racecourse
9:00 to 15:00, about 600 shop
Yasukuni Shrine (citizen, recycling and Flea Market on Saturdays)
10:00 to 15:00, about 200 shop
Meiji Park flea market is not open.
You might feel Shinjuku Chuo Park & Shinjuku Mitsui Building is similar.
Not only flea market, Yoyogi Park is part of the festival.
Tokyo Dome prism Hall and Shinagawa Intercity so indoor, you also found in the rain.

Thank you very much, Haro.

Can I ask if there will be any antique markets on between 4th and 6th of October in Tokyo.

October 5
Oedo Antique Market
9:00 to 16:00
250 shop
It will also sell western antique.
Tomiokahachimangu
6:00 to 17:00
140 shop
Antique Japanese is often. Such as the kimono.
Yasukuni Shrine
From sunrise to sunset
60-100 shop
Hanazono Shrine
(End potential as much 15:00) sunrise - sunset
10 store
Arai Yakushi
6:00 to 15:30
60 store
It is the antique market old history. tableware koimari is especially generous.
http://www.jnto.go.jp/eng/arrange/travel/practical/kottou.html
Case of discontinuation often rain.

Thank you haro.

I guess most flea and antique markets are held on a sunday or saturday. are there any you know of in Osaka?

When do you go to Osaka?
Flea Market is open Saturday and Sunday certainly.
However, it is not held every week at the same location.

11th till the 13th of October.

Nearby Osaka is also fine.

So is there no markets in osaka?

I did not notice the reply had come.
October 11
Swap Meet-in-Flower Expo Park
10:00 to 16:00, about 150 shop
Admission \ 300, rain postponed.
http://www.tripadvisor.co.uk/Attraction_Review-g298566-d1407305-Review...
Charity Flea Market
Shin-Osaka Station East Exit Square
8:00 to 17:00, about 70 shops
October 12
EXPO festival plaza(omatsuri hiroba) recycling Fair
9:30 to 17:00, about 600 shop
Admission \ 350
http://www.expo70.or.jp/event/3384/
http://www.expo70.or.jp/languages/english/
Bentencho ORC200
10:00 to 17:00, about 150 shop
http://www.orc200.com/event/latin.html
1-2-4-700 Benten ,Minato-ku, Osaka
Oak Square (2nd floor atrium)
It also held in the rain.
October 13
Expo festival plaza garage sale
9:30 to 16:30, about 300 shop
Admission \ 350
http://www.expo70.or.jp/event/3384/
http://www.expo70.or.jp/languages/english/
Hamaderakoen recycling Fair
10:00 to 16:00, about 200 shop
http://www.osaka-info.jp/en/facilities/cat7/post_240.html
I think the park is, and it's stop rain.

Thanks Haro.