The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.80
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
92.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
13.8
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
73.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
78.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.31
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
69.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
A fastball with hop has a flat approach angle and visually jumps through the zone. When thrown up in the zone, it is more likely to generate a higher swing and miss average. Hop+ of 100 is MLB average.
Fastball
Sink+
A fastball with sink has low backspin and drops through the strike zone. When thrown down in the zone, it is more likely to generate a higher ground ball percentage and lower launch angle. Sink+ of 100 is MLB average.
Fastball
Rise+
A fastball with rise has a high percentage of backspin. When thrown up in the zone, it is more likely to generate a higher fly ball percentage. Rise+ of 100 is MLB average
Curveball
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Curveball
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Marcum is an exceptional athlete moving around on the mound with a high-level ceiling and his two-inning stint brought the most electricity of any arm on the weekend. Toeing the rubber with a high-waisted, ultra-athletic, 6-foot-2, 180 pound frame - the Bloomington native pitched at 87-91 mph with his heater to overpower hitters, and the firm fastball was only complimented by a sharp, upper-70s slider that spun north of 2500 and missed bats routinely. I was especially happy to see the slider player firmer, a pitch that has shown massive improvements in just a short 4-week window since I saw him at the Grand Park Fall Championships, and he also teased with a couple above average changeups that played in the low-80's. While the overall command grades out an average clip at this point, the arm works quickly and the delivery is super athletic, suggesting more growth will be had, especially when considering the fact that he is one of the youngest prospects in the 2026 class.
2/21/24
'26 2-way Collin Marcum (Bloomington South), a pop up '26 unknown to our staff before the event, walked away as the biggest winner. There is wiry strength in a 6-foot-1, 175 pound frame with arm strength being the standout tool for Marcum. His bullpen session was his best performance of the day - using a quick right arm paired with an athletic delivery to produce a fastball that was up to 88 mph, living at 85-86. Marcum gets to full extension at release, moving down the mound with quickness to allow a firm fastball to play up. Marcum showed the ability to kill spin & execute a 76-77 mph changeup, along with flashing an upside breaking ball at 70-72 mph with up to 15" of horizontal break. On the offensive side of the ball, the arm is the carrying tool, posting a 92 mph velocity from the outfield. A 6.80 runner with a frame packed with twitch, Marcum was able to produce a peak exit velocity of 93.5 mph with a quick, rotational swing from the right-side. The arm talent is intriguing and Marcum will be a priority watch for our staff during the spring.
8/28/22
Collin Marcum, Bloomington South, 2026, IN
Position: 3B/RHP
Body: 5-foot-8, 145-pound lean build.
Hit: (RHH) Fluid. Began in a wide balanced stance with a smooth controlled load, then used a short stride. Developing bat speed. Back foot finish, level swing. Line drive approach.
Power: 80.3 mph exit velocity, average 61.4 mph. 64.2 mph bat speed average. 20.6 mph hand speed average.
Pitching: Solid. Feel delivery, high effort. Over-the-top arm angle, developing arm speed, clean quick arm action. Tall balance point, uphill shoulders, a clean balanced finish.
FB: 74-78 T 79.6 mph. (Max spin 2045; Avg 1886). Both sides of the plate accuracy.
'26 2-way Collin Marcum (Bloomington South), a pop up '26 unknown to our staff before the event, walked away as the biggest winner. There is wiry strength in a 6-foot-1, 175 pound frame with arm strength being the standout tool for Marcum. His bullpen session was his best performance of the day - using a quick right arm paired with an athletic delivery to produce a fastball that was up to 88 mph, living at 85-86. Marcum gets to full extension at release, moving down the mound with quickness to allow a firm fastball to play up. Marcum showed the ability to kill spin & execute a 76-77 mph changeup, along with flashing an upside breaking ball at 70-72 mph with up to 15" of horizontal break. On the offensive side of the ball, the arm is the carrying tool, posting a 92 mph velocity from the outfield. A 6.80 runner with a frame packed with twitch, Marcum was able to produce a peak exit velocity of 93.5 mph with a quick, rotational swing from the right-side. The arm talent is intriguing and Marcum will be a priority watch for our staff during the spring.
Collin Marcum, Bloomington South, 2026, IN
Position: 3B/RHP
Body: 5-foot-8, 145-pound lean build.
Hit: (RHH) Fluid. Began in a wide balanced stance with a smooth controlled load, then used a short stride. Developing bat speed. Back foot finish, level swing. Line drive approach.
Power: 80.3 mph exit velocity, average 61.4 mph. 64.2 mph bat speed average. 20.6 mph hand speed average.
Defense: (IF) Soft hands, fluid footwork, quick exchange. Solid. (OF) Soft hands, quick footwork, quick exchange. Athletic. Laterally, his movements were athletic.
Arm: 73 mph infield velocity. 78 mph outfield velocity. Loose quick arm action, athletic slot.
Pitching: Solid. Feel delivery, high effort. Over-the-top arm angle, developing arm speed, clean quick arm action. Tall balance point, uphill shoulders, a clean balanced finish.
FB: 74-78 T 79.6 mph. (Max spin 2045; Avg 1886). Both sides of the plate accuracy.
CB: 60-62 mph. Tight action, 11/5 shape. (Max spin 2064; Avg 2030).
SL: 63-65 mph. Tight slurvey action. (Max spin 2209; Avg 2125).