What is Hard Hit Rate? Definition, Formula, and Example
Hard Hit Rate is the percentage of a hitter's batted balls struck at 95 mph or harder off the bat, a Statcast quality-of-contact measure that correlates strongly with power and expected slugging.
What is Hard Hit Rate?
Hard Hit Rate (also written Hard Hit%, HH%, or EV95+%) is the share of a player's batted balls that leave the bat at 95 miles per hour or faster. Statcast picks 95 mph as the threshold because production spikes sharply above it — league-wide batting average on 95+ mph batted balls hovers around .500, while sub-95 mph contact produces averages closer to .220. It is a Statcast quality-of-contact stat, not a results stat: a hard-hit ball right at the third baseman still counts, and a bloop single in front of the shortstop does not.
How Hard Hit Rate Is Calculated
The formula is simple:
Hard Hit Rate = (Batted Balls with Exit Velocity ≥ 95 mph) / (Total Batted Balls) × 100
"Batted balls" in this denominator excludes strikeouts, walks, HBPs, and sacrifice bunts, but includes home runs, outs in play, and anything else that put the ball in fair or foul territory with a measured exit velocity. Statcast captures exit velocity off the bat using its Hawk-Eye optical tracking system installed in every MLB park, so the metric is available for nearly 100% of batted balls since 2020. League-average Hard Hit Rate across the majors is roughly 40–42% in a typical modern season.
Worked Example
Aaron Judge posted a Hard Hit Rate of 57.6% in 2024, topping MLB among qualified hitters. Out of roughly 430 batted balls, about 248 were hit 95 mph or harder. Compare that to Luis Arraez in 2024 at around 24% — Arraez puts the ball in play constantly but rarely squares it up, which is why his profile is high batting average and almost no power. Giancarlo Stanton sat around 55% in 2024. Yordan Alvarez lives in the high 50s. The 95 mph threshold is absolute, so Judge at 57.6% means nearly three of every five balls he hits clear it; the average big-leaguer clears it two of every five.
Why Hard Hit Rate Matters
Front offices lean on Hard Hit Rate because it stabilizes fast — it becomes predictive after roughly 50 batted balls, much quicker than batting average or slugging percentage. When a hitter's surface stats lag behind their Hard Hit Rate, regression models expect the surface stats to catch up. It anchors expected stats like xwOBA and xSLG, and it feeds hitter projection systems used in free-agent valuation and arbitration.
Fantasy and DFS managers use it to spot power breakouts before they show up in home run totals. A hitter jumping from 38% to 48% Hard Hit Rate year-over-year is almost always about to post a career-best ISO.
Limitations and Common Misconceptions
Hard Hit Rate ignores launch angle. A 98 mph ground ball to the second baseman counts the same as a 98 mph line drive into the gap, even though one is an out and the other a double. That's why barrel rate exists — it combines exit velocity with the launch-angle window that produces extra-base hits. A hitter with a huge Hard Hit Rate but a 2-degree average launch angle (see Hunter Dozier–type profiles) will underperform his exit velocity because he pounds the ball into the dirt.
It also doesn't tell you how often a hitter makes contact at all. Joey Gallo could run a 55% Hard Hit Rate while striking out 40% of the time; the denominator is balls in play, not plate appearances. Pair Hard Hit Rate with whiff rate and K% to see the full picture.
Related Terms
In Legends Deck
Hard Hit Rate is one of the four inputs that determines a hitter card's Power and Contact Quality ratings. Judge-tier cards (55%+ HH%) roll doubles and homers on the simulation's batted-ball table at dramatically higher rates, while sub-30% HH% cards cap out in the low-slugging tier regardless of raw home run totals. It's how the engine distinguishes real thunder from fluky counting stats — a 30-HR season built on weak contact gets rated lower than a 22-HR season built on elite exit velocity.