Noah Syndergaard's fastball is towards the extreme high end of fastball velocity, obviously. It sits around 97.8 mph, which is ridiculous. The spin rate, though, is more mundane, and actually below average. The average spin rate is 2220 rpm, and Syndergaard's is instead 2174. Not terrible, but not otherworldly by any stretch of the imagination. It is somewhat odd, though, as fastball velocity generally correlates with spin rate, with the highest velocity fastballs generally having the highest spin rates. Generally, not always. But preferably.

Before I said Syndergaard's fastball is nestled up against the Cape of Good Cheese. I mean that, you want to live on that Cape, it is the home of the best fastballs in the game. Syndergaard is tantalizingly close, but not quite there. He can jump on the southern tip by picking up a few miles per hour on his fastball, which is something he apparently feels inclined to do. More realistically, and also much more valuably, he could add spin rate. Adding 200rpm could increase his expected swinging strike rate by 50%, perhaps even 100%. That would put him in the same camp as Aroldis Chapman (100.6mph, 2508 rpm, 19.2% SwStrk%), Dellin Betances (98mph, 2448 rpm, 12.5% SwStrk%), and Craig Kimbrel (97.7mph, 2458 rpm, 12.5% SwStrk%).

Finally, in case you're curious, here are all of Syndergaard's pitches mapped on this chart.