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They key difference between them, however, are that in baseball, the pitcher bowls overarm, while they do so underarm in softball.

The most apparent for spectators is the pitch: softball features an underarm pitch whereas baseball pitchers throw overarm.

As MacMillan notes, there might be biological arguments for the male shoulder having evolved well for overarm missile launching, but neuroscience is debunking notions of a hormonally tranquillised female brain.

And, but for her willingness to be different, women would have taken a lot longer switching to serving overarm.

For example, experienced darts players throw overarm at about 5.5 metres per second, optimally releasing the dart 17 to 37 degrees before the arm becomes vertical.