2,210 MLB PLAYERS | 15,134 MLB DRAFT SELECTIONS
Create Account
Sign in Create Account
Gianni Heidenberg
2028 GRAD
 |  OF/LHP
 |  Laurel, MD
UNCOMMITTED
Best PG Grade
8
ABOUT PG GRADES
Arch Bishop Spalding
HIGH SCHOOL
5-8
  140

HEIGHT/WEIGHT
L/L
BATS/THROWS
14 and 8 mos
AGE
WANT VIDEO?
PG EVENT RESULTS
81 mph
FB VELO 4/27/2024
7.22 sec
60 YARD DASH 8/17/2024
1.70 sec
10 YARD SPLIT 8/17/2024
81 mph
OF VELO 8/17/2024
69 mph
1B VELO 8/26/2023
81 mph
EXIT VELO 8/17/2024
Pitching Stats
  Advanced Statistics
SUBSCRIBE TO
2024 Calendar Year
W L SV GP ERA IP H R ER 2B 3B HR BB IBB HBP SO AVG OPS WHIP
SUBSCRIBE TO
Advanced
BF P P/IP P/BF B% S% SW% SM% WHIF% WP BK K/BB BB% K% K/7 BB/7 OBP SLG
SUBSCRIBE TO
Batted Ball
BF XBH GO/AO GB% AIR% HR/FB GIDP BABIP ISO PULL% OPPO%
SUBSCRIBE TO
W L SV GP ERA IP H R ER 2B 3B HR BB IBB HBP SO AVG OPS WHIP
SUBSCRIBE TO
Advanced
BF P P/IP P/BF B% S% SW% SM% WHIF% WP BK K/BB BB% K% K/7 BB/7 OBP SLG
SUBSCRIBE TO
Batted Ball
BF XBH GO/AO GB% AIR% HR/FB GIDP BABIP ISO PULL% OPPO%
SUBSCRIBE TO
Batting Stats
  Advanced Statistics
SUBSCRIBE TO
Batting Spray Chart Spray Chart
2024 Calendar Year
OPS AVG OBP SLG G AB R H 2B 3B HR RBI BB SO SB CS
SUBSCRIBE TO
Advanced
XBH TB BB/K BB% K% IBB HBP SF ISO BABIP SW% SM% WHIF% B% S%
SUBSCRIBE TO
Batted Ball
PA GO/AO GB% AIR% PULL% OPPO% HR/FB GIDP
SUBSCRIBE TO
OPS AVG OBP SLG G AB R H 2B 3B HR RBI BB SO SB CS
SUBSCRIBE TO
Advanced
XBH TB BB/K BB% K% IBB HBP SF ISO BABIP SW% SM% WHIF% B% S%
SUBSCRIBE TO
Batted Ball
PA GO/AO GB% AIR% PULL% OPPO% HR/FB GIDP
SUBSCRIBE TO
LATEST PG SHOWCASE REPORT
2024 14U Mid-Atlantic All-State Games (Invite Only)  
Gianni Heidenberg is a 2028 OF/LHP with a 5-8 135 lb. frame from Laurel, MD who attends Arch Bishop Spalding. Young, athletic frame with square shoulders and a lean build, room to fill throughout. Ran a 7.22 60-yard dash. Primary outfielder, does a nice job of remaining low on approach and throughout actions, long strides, pulls down hard into release and shows present arm strength with accuracy to the intended base from a lower slot. Also pitched, abbreviated windup with deliberate pace, coiled leg lift into balance point with some drop and drive down the mound. Worked to an extended three-quarters release point, fastball topped out at 70 mph with the ability to add/subtract on the offering and worked around the zone. Slurvey breaking ball with some depth up to 61 mph. Left-handed hitter, begins with a balanced and even base in the box and a high hand set and back elbow in set up. Rotational swing, occasionally gets to front side early but shows quickness from launch position and able to generate nice jump off of the barrel to the pull side already. Projects well with added physical strength and already gets the barrel through the zone efficiently. Very good student. Named to the 14u Mid-Atlantic All-State Games Top Prospect List.
PG CAREER PROGRESSION
+14 MPH
FB Velo since 08/26/2023
-0.13 SEC
10 Yard Split since 08/26/2023
-0.19 SEC
60 Time since 08/26/2023
+9 MPH
OF Velo since 08/26/2023
+8 MPH
Exit Velo since 08/26/2023
+12.61 MPH
Max Barrel Speed since 08/26/2023
+4.35
Impact Momentum since 08/26/2023
+1.53 Gs
Max Acceleration since 08/26/2023
Best PG Grade: 8
PERCENTILE RANKINGS
CLASS OF 2028 in the recorded year
CATEGORY TOP RESULT CLASS AVG PERCENTILE
FB 81 mph 68 mph
96.27%
60 7.22 sec 7.93 sec
91.17%
10 SPL 1.70 sec 1.81 sec
80.57%
OF 81 mph 71 mph
87.06%
1B 69 mph 69 mph
45.78%
CATEGORIES TOP RESULT CLASS AVG PERCENTILE
Exit Velo 81 mph 72 mph
84.97%
Perfect Game Performance
A player’s Hitter Potential Score leverages data from a slow-motion video and a bat sensor to evaluate five major indicators of a hitter’s overall potential and create a personalized program to help them improve.
Access Your Personalized Development Plan
PLAYER
Gianni Heidenberg
EVENT
2024 14U Mid-Atlantic All-State Games (Invite Only)
HITTING
Baseball Left Handed Hitter
65
Hitter Potential Score™
82
Performance
47
Direction
66
Plane
55
Depth & Length
61
Mechanics
PLAYER
Gianni Heidenberg
EVENT
2024 14U Ohio Valley All-State Games (Invite Only)
HITTING
Baseball Left Handed Hitter
68
Hitter Potential Score™
71
Performance
53
Direction
88
Plane
52
Depth & Length
68
Mechanics
2023 13U/14U Coastal Prospect Showcase
Left Handed Hitting

Swing Efficiency™

55%

Exit Velo

73mph

Swing Sequence

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Arm
#3 Torso
#4 Hand
CATEGORY TOP RESULT CLASS AVG PERCENTILE
Max Barrel Speed 62.913 mph 57.04 mph
77.91%
Impact Momentum 23.641 20.85
82.67%
Max Acceleration 30.711 g's 27.28 g's
72.56%
BEST SINGLE GAME STATS
BATTING STATSLAST OCCURRENCE
At bats: 4 Aug 17, 2024 vs. 7 - Black
Runs: 3 Apr 27, 2024 vs. SBA Sticks 2028
Hits: 3 Jul 13, 2024 vs. Carolina Reds
RBI's: 2 Aug 18, 2024 vs. 7 - Black
Doubles: 2 Jul 13, 2024 vs. Carolina Reds
Total bases: 5 Jul 13, 2024 vs. Carolina Reds
Walks: 2 Sep 08, 2024 vs. Cavs Blue
SAC flies: 1 Aug 18, 2024 vs. 7 - Black
Stolen bases: 3 Jun 16, 2024 vs. Canes American 14u
PITCHING STATSLAST OCCURRENCE
Inn. pitched: 4.2 Oct 28, 2023 vs. Smartense 14u The Show
Runs allowed: 0 Jun 21, 2024 vs. Black Sharks Baseball
Earned runs: 0 Sep 07, 2024 vs. Dig In Nation
Hits allowed: 0 May 05, 2024 vs. Sba Illinois Elite
Strikeouts: 4 Oct 28, 2023 vs. Smartense 14u The Show
Walks allowed: 0 Sep 07, 2024 vs. Dig In Nation