| Age | 2006 USA Baseball Guidelines | 2010 Little League Baseball Regulations |
| Daily Limits | ||
| 17-18 | N/A | 105/day |
| 15-16 | N/A | 95/day |
| 13-14 | 75/game | 95/day |
| 11-12 | 75/game | 85/day |
| 9-10 | 50/game | 75/day |
| 7-8 | N/A | 50/day |
| Weekly Limits | ||
| 15-18 | N/A | 31-45 pitches = 1 day rest 46-60 pitches = 2 days rest 61-75 pitches = 3 days rest 76+ pitches = 4 days rest |
| 13-14 | 125/week; 1000/season; 3000/year | 21-35 pitches = 1 day rest 36-50 pitches = 2 days rest 51-65 pitches = 3 days rest 66+ pitches = 4 days rest |
| 11-12 | 100/week; 1000/season; 3000/year | |
| 9-10 | 75/week; 1000/season; 2000/year | |
| 7-8 | N/A |
For high school pitch count rules by state, click here.
For further discussion on this topic, visit the ASMI Forum.
References:
- Dun S, Loftice J, Fleisig GS, Kingsley D, Andrews JR. A biomechanical comparison of youth baseball pitches: is the curveball potentially harmful? Am J Sports Med. 2008; 36(4):686-692.
- Fleisig GS, Andrews JR, Cutter GR, Weber A, Loftice J, McMichael C, Hassell N, Lyman S. Risk of serious injury for young baseball pitchers: a 10-year prospective study. Am J Sports Med. 2011; 39(2):253-257.
- Fleisig GS, Andrews JR, Dillman CJ, Escamilla RF. Kinetics of baseball pitching with implications about injury mechanisms. Am J Sports Med. 1995; 23:233-239.
- Fleisig GS, Weber A, Hassell N, Andrews JR. Prevention of elbow injuries in youth baseball pitchers. Curr Sports Med Rep 2009; 8(5):250-254.
- Lyman S, Fleisig GS, Andrews JR, Osinski ED. Effect of pitch type, pitch count, and pitching mechanics on risk of elbow and shoulder pain in youth baseball pitchers. Am J Sports Med. 2002; 30(4):463-468.
- Matsuo T, Fleisig GS, Zheng N, Andrews JR. Influence of shoulder abduction and lateral trunk tilt on peak elbow varus torque for college baseball pitchers during simulated pitching. J Appl Biomech. 2006; 22(2): 93-102.
- Nissen CW, Westwell M, Õunpuu S, Patel M, Solomito M, Tate J. A biomechanical comparison of the fastball and curveball in adolescent baseball pitchers. Am J Sports Med. 2009 37(8):1492-1498.
- Olsen SJ, Fleisig GS, Dun S, Loftice J, Andrews JR. Risk factors for shoulder and elbow injuries in adolescent baseball pitchers. Am J Sports Med. 2006; 34(6):905-912.
- Petty DH, Andrews JR, Fleisig GS, et al. Ulnar collateral ligament reconstruction in high school baseball players: clinical results and injury risk factors. Am J Sports Med 2004; 32:1158-1164.