The reactive strength index measurement of an athlete's explosiveness by comparing their jump height to the ground contact time in between their jumps. On a scale of 0-5.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
2025 RHP/2B Sean Duffy impressed on the mound with one of the better arms and a desirable frame at 6-foot-3, 180-pounds. Uses his size to work downhill with an open landing and tough low ¾ arm slot. Sat 77-80 T81 with the fastball and works with a curveball and good changeup. The offspeed stuff needs to develop before Duffy makes the next big jump but there’s lots to like and work with on the mound.
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2025 RHP/2B Sean Duffy impressed on the mound with one of the better arms and a desirable frame at 6-foot-3, 180-pounds. Uses his size to work downhill with an open landing and tough low ¾ arm slot. Sat 77-80 T81 with the fastball and works with a curveball and good changeup. The offspeed stuff needs to develop before Duffy makes the next big jump but there’s lots to like and work with on the mound.