83
Velocity (max)
3/16/24
CLASS OF 2025
RHP
OF
Nathan
Birkhimer
Milton (HS) • WI
6' 3" • 185LBS
R/R • 18yr 1mo
Travel Team: Midwest Halos 17u
6' 3" • 185LBS
R/R • 18yr 1mo
Travel Team: Midwest Halos 17u
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
80.5 - 82.5
Velo Range
3/16/24
2071
Spin Rate (avg)
7/30/24
Changeup
68 - 71
Velo Range
7/30/24
1409
Spin Rate (avg)
3/18/23
Curveball
68 - 71
Velo Range
7/30/24
1929
Spin Rate (avg)
3/16/24
Slider
67 - 68
Velo Range
3/18/23
1896
Spin Rate (avg)
3/18/23
82.3
Exit Velocity (max)
3/18/23
75.6
Exit Velocity (avg)
3/18/23
288
Distance (max)
3/18/23
50
Sweet Spot %
3/18/23
19.9
Hand Speed (max)
3/18/23
65.5
Bat Speed (max)
3/18/23
17.3
Rot. Acc (max)
3/18/23
-
Hard Hit %
7.62
60
3/18/23
-
30-yd
1.81
10-yd
3/18/23
17.6
Run speed (max)
3/18/23
-
INF Velo
80
OF Velo
3/18/23
-
C Velo
-
Pop Time
Positional Tools
2023
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.62
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
80.0
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.
10.8
Hitting
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
82.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
75.6
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
288
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
154
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
14.3
Hard Hit %
Percentage of batted balls with exit velocities over 95 MPH in the given event year.
Sweet Spot %
Percentage of batted balls in the given event year with a launch angle between 8° and 32°.
Line Drive %
Percentage of batted balls with launch angles between 10 and 25 degrees in the given event year.
Fly Ball %
Percentage of batted balls with launch angles between 25 and 50 degrees in the given event year.
Ground Ball %
Percentage of batted balls with launch angles below 10 degrees in the given event year.
Milwaukee Preseason ID
Mar 18, 2023
Trackman - Hitting
82.3
Exit Velocity (max)
75.6
Exit Velocity (avg)
154
Distance (avg)
288
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
19.9
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.2
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
65.5
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
61.8
Rotational Acceleration Max
The highest Rotational Acceleration of any swing in the given event year.
Rotational Acceleration Avg
The average Rotational Acceleration for all swings in the given event year.
On-Plane Efficiency Max
The highest On-Plane Efficiency of any swing in the given event year.
On-Plane Efficiency Avg
The average On-Plane Efficiency for all swings in the given event year.
Milwaukee Preseason ID
Mar 18, 2023
Blast - Hitting
19.9
Hand Speed (max)
19.2
Hand Speed (avg)
65.5
Bat Speed (max)
61.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.1
Fastball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2056
Fastball
Spin Score Avg
The average Bauer Units value of all fastballs in the given event year. Bauer Units are calculated for each pitch by dividing Spin Rate by Velocity.
25.7
Fastball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
68.8
Curveball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1857
Curveball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
68.4
Changeup
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1062
Changeup
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
76.4
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.7
Fastball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1999
Fastball
Spin Score Avg
The average Bauer Units value of all fastballs in the given event year. Bauer Units are calculated for each pitch by dividing Spin Rate by Velocity.
26.4
Fastball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
65.4
Curveball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1847
Curveball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
66.5
Changeup
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1409
Changeup
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
67.2
Slider
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1896
Slider
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Wisconsin State Games (Invite-Only)
Jul 30, 2024
Trackman - Fastball
81.3
Velocity (max)
78.1 - 81.1
Velo Range
78.0
Eff Velocity (avg)
2,150
Spin Rate (max)
2,071
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
72.5
Velocity (max)
67.8 - 70.9
Velo Range
66.8
Eff Velocity (avg)
1,986
Spin Rate (max)
1,827
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
71.0
Velocity (max)
68.0 - 70.5
Velo Range
67.6
Eff Velocity (avg)
1,241
Spin Rate (max)
1,080
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Milwaukee Preseason ID
Mar 16, 2024
Trackman - Fastball
82.9
Velocity (max)
80.5 - 82.5
Velo Range
79.0
Eff Velocity (avg)
2,145
Spin Rate (max)
2,011
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
68.2
Velocity (max)
66.3 - 68.2
Velo Range
64.9
Eff Velocity (avg)
2,009
Spin Rate (max)
1,929
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
68.7
Velocity (max)
65.6 - 68.1
Velo Range
65.1
Eff Velocity (avg)
1,123
Spin Rate (max)
1,030
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Milwaukee Preseason ID
Mar 18, 2023
Trackman - Fastball
76.4
Velocity (max)
75.2 - 76.2
Velo Range
75.2
Eff Velocity (avg)
2,075
Spin Rate (max)
1,999
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
66.3
Velocity (max)
64.6 - 66.1
Velo Range
63.7
Eff Velocity (avg)
1,865
Spin Rate (max)
1,847
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
67.8
Velocity (max)
66.7 - 67.7
Velo Range
66.2
Eff Velocity (avg)
1,983
Spin Rate (max)
1,896
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
67.7
Velocity (max)
65.1 - 67.7
Velo Range
66.3
Eff Velocity (avg)
1,556
Spin Rate (max)
1,409
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Pitch Scores
2024
2023
Fastball
Hop+
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.
Fastball
Hop+
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
Pitching Velos
2024
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
80.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.2
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.2
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
76.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
66.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.5
Game Performance
2024
2023
RSi
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.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.81
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.62
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
RSi
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.
Milwaukee Preseason ID
Mar 18, 2023
Swift
1.81
10-yd
7.62
60-yd
17.6
Run speed (max)
1.27
RSi (max)
1.27
RSi (avg)
793
Jump Power (max)
Visual Edge
2023
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
68.72
Pitch Ai
Notes
Comments
Draft Reports
Contact
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Positional Profile: RHP/OF
Body: 6-3, 185-pounds.
Delivery: Athletic with dynamic lower half, well-sequenced, gets through the ball with good direction to the plate, repeats.
Arm Action: RH. Compact, high 3/4 slot, over the top.
FB: T81, 78-81 mph. Some life out of hand, both sides of plate, controlled. T2150, 2071 average rpm.
CB: 68-71 mph. 12/6 shape, confident pitch, produced weak contact. T1986, 1827 average rpm.
CH: 68-71 mph. Has present feel for the pitch, has ability to get swing and miss when thrown with fastball intent. T1241, 1080 average rpm.
Positional Profile: RHP/OF
Body: 6-2, 184-pounds. Athletic build with some room to fill, some lean strength in lower half, good proportions.
Delivery: Side step to rhythmic leg lift to athletic and tall finish.
Arm Action: RH. Higher 3/4 slot, stays on top, loose and quick.
FB: T83, 81-82 mph. Mostly straight, fingers stay on top, pounds zone. T2145, 2011 average rpm.
CB: 66-68 mph. 12/6 tilt, plays with arm slot/delivery. T2009, 1929 average rpm.
CH: 66-68 mph. Falls off, developing pitch. T1123, 1030 average rpm.
ATH: 24.50 max vertical.
Positional Profile: OF/RHP
Body: 6-2, 155-pounds. Long levers, athletic frame with more fill coming.
Hit: RHH. Wide base, relaxed hands. Rocks back stays grounded, turns hard into back side, flat path, back spins balls into both gaps.
Power: 82 max exit velocity, averaged 75.6 mph. 288’ max distance.
Arm: RH. OF - 80 mph. Long, quick arm, 3/4 slot.
Defense: One-hand gather, athletic, fields in stride and on-line, moves well laterally.
Run: 7.62 runner in the 60.
Delivery: Controlled tempo, medium leg lift, drop and drive delivery, lands in-line.
Arm Action: RH. High 3/4 slot, long path.
FB: T76, 75-76 mph. Slight arm-side run. T2075, 1999 average rpm.
CB: 65-66 mph. Gradual action, 11/5 slurve. T1865, 1847 average rpm.
SL: 67-68 mph. Similar to curveball action. T1983, 1896 average rpm.
CH: 65-68 mph. Turns over with sink action. T1556, 1409 average rpm.