Last year, I unveiled the latest version of my xBABIP equation. It utilizes our Splits Leaderboard in order to account for defensive shifts, something that has never been reflected in xBABIP formulas previously. As a result, it does the best job we’ve seen so far in estimating BABIP. So let’s check in on early xBABIP marks and discuss those who have underperformed the most. These guys are due for an imminent surge as balls fall in for hits on a far more frequent basis.

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As it remains far too early to actually analyze results (like ERA and WHIP), let’s continue discussing the underlying skills driving those results. Those skills are significantly more important when projecting for the future. So let’s find out which American League starting pitchers have improved their in-zone whiff rate the most. In FG metric parlance, that means calculating who has reduce their Z-Contact% by the greatest rate.

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This week’s deep league waiver wire is brought to you by the injury demon. This demon makes frequent visits. His presence creates opportunities for lesser owned players to make deep league contributions. Here are two of those candidates.

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Yesterday, I discussed the early fly ball & line drive exit velocity surgers. Today, let’s dive into the decliners. Explanations for such a dramatic drop in exit velocity ranges from a small sample cold streak, playing through injury, or good old deterioration of power skills. If only we knew which of those explanations applied to each player!

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Exit velocity is an underlying skill that drives results. I like analyzing underlying skills. So let’s check in on the average fly ball and line drive exit velocity (FB/LD EV) surgers. Though the metric didn’t make it into my newest version of xHR/FB rate, it still correlates with offensive output and power.

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It’s still far too early to analyze a lot of the metrics we typically use to evaluate players. But underlying skills like SwStk% are meaningful more quickly than strikeout rate because the denominator increases faster. So let’s peruse the American League starting pitcher SwStk% leaderboard and discuss.

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Welcome to the first 2018 edition of the deep league waiver wire! This is where I recommend two players with ownership rates that don’t exceed 10% in CBS leagues. These recommendations are geared toward deep leaguers, which is mostly mono leagues (AL-Only or NL-Only). But, sometimes I feel they are worthy of shallower league consideration, and I’ll note when that happens.

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Yesterday, I discussed the starting pitchers who have experienced the largest spikes in ground ball rate. In the era of the fly ball and home run, it’s more important than ever to induce the batted ball type that cannot leave the park — the grounder. Today, let’s dive into the starting pitchers who have seen their GB% dive compared to last year. Remember we’re still dealing with tiny samples here, so it’s likely the majority of pitchers regress toward their career average. But that won’t always be the case, so it’s worth trying to catch the batted ball type distribution changers early.

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Though the leaguewide HR/FB rate is down (likely due in part to the cold weather), it’s clear that this fly ball revolution is here to stay. That’s bad news for fly ball pitchers, because now more of their fly balls are going to jump over the wall for a home run. The best way to keep your HR/9 rate in check is by inducing grounders. So let’s check in on the early starting pitcher ground ball rate surgers.

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It’s still way too early to be analyzing anything. Heck, after Tuesday’s games, the league leader in plate appearances sits at just 33! That said, batted ball type distribution does stabilize relatively quickly, compared to other metrics. So even though we’re still not even halfway toward our 80 balls in play stabilization point, it’s worth checking in on batter fly ball rates. Perhaps we’ll get an early indication of which hitters have joined the fly ball revolution and are poised for a home run surge.

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