本垒打限制

USA Softball's 2026 rules set a per-team, per-game limit on over-the-fence home runs in men's, masters, coed and women's slow pitch (Rule 5, Section 8A). The limits are 12 in Class AA, 10 in Class A, 8 in Coed Open, 7 in Men's Class B, 6 in Industrial, 5 in Class C and Men's Masters, 4 in Church, 3 in Class D and 1 in Class E/Rec. A home run beyond the limit is an out, the ball is dead and no runners advance. A fly ball that a fielder touches before it clears the fence is a four-base award and does not count. In coed, men's and women's home runs count toward one team total.

Senior divisions use their own numbers (Rule 5, Section 8B). Men aged 50 to 65 are allowed 9 in Major Plus and 6 in Major, each with a "one-up" rule, then 3 in AAA and 1 in AA. Under one-up, once both teams reach the limit, either team may hit one more to go ahead. Men aged 70 and 75 are allowed 6 in Major and 3 in AAA.

USSSA sets different limits by program (Rule 4, Section 8). For example, Men's Class C allows 5 and Men's Class D allows 3, Women's Major has no limit, and mixed (coed) limits count each gender separately. In USSSA's Class D and E programs, and in Women's Class C, a home run over the limit is an inning-ending out. Local leagues often set their own numbers, so check yours.

The home run limit changes the strategy of slow-pitch hitting at a fundamental level. Take a league with a three-HR limit. Once the team has hit three, a power hitter who pulls everything over the left-field fence is a liability rather than an asset. At that point, their at-bats produce outs if they go over the fence, the exact outcome they are optimizing for. This is why gap-to-gap hitting, opposite-field power, and line-drive contact are emphasized in any league with a meaningful HR limit. These approaches produce doubles and triples that score runs without counting against the cap.

Teams that succeed within HR limits usually have batters who can adjust their intent from at-bat to at-bat. The adjustment depends on whether the limit has been reached. Pre-limit at-bats allow maximum exit velocity and a pull-friendly approach. Post-limit at-bats require deliberately hitting the ball shorter, pushing to the gaps, and prioritizing base hits over fence-clearing contact. This dual-mode hitting demands mechanical flexibility. A hitter must be able to reduce pull intensity and keep the ball in the park without rolling over and producing grounders. Hitters who cannot adjust become automatic outs once the cap is reached.