So popular opinion and thought is that to shoot sports you need a camera with state of the art auto focus, a super high frame rate of 7-16 frames per second, and a super telephoto in the 200-500mm range. If you are getting paid by Sports Illustrated, ESPN, or Yahoo Sports then sure, a Nikon D850, D500, D5, Canon 7Dii, 1DX Mark II, 5D Mark IV, or other pro level camera and long telephoto is required to maximize your chances of getting the shot. However, the Canon M series and EF-M lenses took the following pictures at the 2017 US Open in New York. No tripod and from up in the promenade (cheap seats that still cost $90-$200 each) with an M3 and 55-200 I still got the following shots:
Sloan Stephans was playing Venus Williams in the picture above. Sloan won this match and then beat Madison Keys for the Women’s Singles Championship.
Mike Bryan serving.
Bob Bryan
The following three shots is an actual sequence with Bob Bryan serving:
Those oversized tennis balls are $45. 
If you plan on shooting sports with an M, I would recommend the M6 or M5 due to their fast frame rates. Keep in mind that their buffers are smaller than a DSLR so you will get 2-5 seconds of holding the button down before the camera stops shooting while it clears the buffer. This 2-5 seconds is based on shooting with Sandisk Ultra class 10 80MB/s cards. Sandisk makes faster cards, 90, 95, and 300MB/s so try these out if shooting sports is important to you. The M5 or M6 with a 300MB/s card should be fine for all sports photography needs but pros. These cards are expensive with MSRP of 128GB = $300, 64GB=$150, and 32GB = $100. The 95MB/s cards are significantly cheaper with a MSRP of 128GB = $65, 64GB=$38, and 32GB = $23
Regarding the US Open:
The outer courts don’t have reserved seating so you can just go see other matches going on simultaneously. Here are some juniors doubles matches. You can get front row seats to a future grand slam winner. There is usually a $20-$40 grounds admission fee, but then you can just roam around and see as many matches as you want. Thursday there was no admission fee so we roamed around and saw several matches. You can see seniors like John McEnroe or Michael Chang playing doubles. Martina Hingis is actually still playing in the doubles matches and doing very well the past few years.
It’s cool to see players you’ve watched on TV for years play in real life. The ball and action move much faster in real life compared to TV. If you’re a tennis fan the US Open is a must see.
I’d expect more opportunities to actually play tennis on site. There was only one court set up and the line was like 45 minutes to play for 5 minutes, so not really a good deal. There is no demo facility where you can try out different rackets!! I expected a huge demo facility with rackets from each manufacturer but there wasn’t any at all that I saw. Maybe this is by design as there wasn’t much at all to buy. I found this really odd and a missed opportunity.
The food was overpriced and not very good. Eat before and after you come here since the food is not worth it. Flushing is a great place to stay since you can walk to the Open and eat the best Chinese food around. One place of note is Spot Dessert Bar an all around 5 star place. https://www.yelp.com/biz/spot-dessert-bar-flushing and
Canon M Cameras 