August 30, 2014

Washington Nationals Game 133 Recap: Nats Blast Past Mariners

SIX HOMER NIGHT POWERS NATIONALS TO VICTORY

In their first trip back to Seattle since 2008, the Washington Nationals – powered by six homers – defeated the Mariners 8-3 to improve to 10-0 overall since 2005 against the A.L. West ball club.

The Nationals entered the game on a three-game skid and facing one of the league’s best pitchers in Felix Hernandez. On this night, however, Washington had the upper hand. [Read more...]

Washington Nationals vs Seattle Mariners Series Preview

After being swept out of Philadelphia by the Phillies, the Washington Nationals are now on the west coast for a three-game series with the Seattle Mariners. [Read more...]

Washington Nationals Game 129 Review: Phillies Defeat Nats in Pitchers Duel

ROARK, BURNETT ENGAGE IN PITCHERS DUEL IN PHILLY

Playing in Citizens Bank Park in the City of Brotherly Love, the Washington Nationals suffered their second defeat in their last 14 games, losing to the Philadelphia Phillies, 3-2. [Read more...]

Washington Nationals Game 126 Review: Giants End Nationals’ Win Streak

SAN FRANCISCO’S TWO OUT HITS DOOM NATIONALS

With a franchise record on the line at home, the Washington Nationals faltered to a 10-3 defeat at the hands of San Francisco Giants, bringing their winning streak to an end just a game short of the franchise mark.

The Giants sent Tim Hudson, who boasts a now 18-5 record all time against Washington, to the mound take on the now 12-4 Doug Fister. Early on, it was a pitchers dual that the Nationals held the early advantage in. [Read more...]

Washington Nationals Game 121 Review: Nats Rally Late, Walk off against Pirates

ADAM LAROCHE, WILSON RAMOS LEAD LATE CHARGE FOR FIFTH STRAIGHT WIN

The Washington Nationals rallied late to top the Pittsburgh Pirates 4-3 in walkoff fashion Saturday night at Nationals Park to tally their fifth straight win.

The Nats struggled offensively all night against Pittsburgh starter Jeff Locke, who held Washington scoreless through 5.2 innings with just four hits and two walks allowed.

Meanwhile, Gio Gonzalez’s performance, yet again, was middle-of-the-road. The 6-9 starter allowed three runs on seven hits and two walks through 5.0 innings pitched in what later became a no decision thanks to Adam LaRoche & co.

All three runs came in the third after Gonzalez allowed a single to Josh Harrison and a walk to Russell Martin. The next batter, Starling Marte, doubled on a line drive to left to knock in a run, before Gaby Sanchez singled in Martin and Marte. [Read more...]

Statistically Speaking: Measuring Ryan Zimmerman’s value

Ryan Zimmerman has been a catalyst for the Washington Nationals offense from what seems to be time immemorial. Boasting a career .357 weighted on-base average (wOBA), which ranks second amongst third baseman and ninth in the National League since 2005 (minimum 5000 plate appearances), Zimmerman has been a consistent, potent offensive weapon for a team that has endured its share of toothless lineups. To the chagrin of the team and fans, this offense has sputtered in recent years, primarily due to a number of injuries that have forced him to miss significant time out of the lineup.

It’s been felt by many this season that when Zimmerman’s not penciled in the lineup card, the chances of runs being scored drop precipitously; the numbers confirm this to a certain extent, with the Nationals averaging 4.66 runs per game with Zimmerman in the lineup and 3.77 runs a game with him out. Compare this to the team’s overall scoring average—4.19 runs per game, fourth in the NL—and to the NL’s average runs scored per game—3.96 runs per game—and we pull back the curtain a little more as to how important Zimmerman’s bat is to the Nats; with him, they’re league beaters, but without him, they’re not even league average when it comes to plating runs.

Let’s keep pulling said curtain back and go back to wOBA to get a better grasp of the importance of Zimmerman in (and out of) the lineup, now, from a teammate’s perspective. With wOBA, we can better measure and apply a player’s offensive value and what exactly they contribute to the run scoring environment. It does require a little math in order to accurately weight each offensive contribution (singles, walks, and so on) for the current run environment, but thankfully, FanGraphs helps us with this process.

The wOBA formula for the 2014 season is:

wOBA = (0.691×uBB + 0.723×HBP + 0.892×1B + 1.280×2B + 1.630×3B + 2.126×HR) / (AB + BB – IBB + SF + HBP)

…and after plugging and chugging and some shuffling of stats into two ‘bins’—stats with Zimmerman (‘Zim’) and stats without him (‘no Zim’), we get the following numbers for the ‘Big 8′ of Nats players who get the lion’s share of starts: Ian Desmond, Danny Espinosa, Bryce Harper, Adam LaRoche, Wilson Ramos, Anthony Rendon, Denard Span, and Jayson Werth:

Name wOBA Zim wOBA, no Zim PA, Zim PA, no Zim
Desmond 0.363 0.282 212 236
Espinosa 0.314 0.278 123 184
Harper 0.340 0.319 102 95
LaRoche 0.347 0.377 228 157
Ramos 0.357 0.293 97 106
Rendon 0.397 0.316 223 249
Span 0.325 0.338 224 235
Werth 0.399 0.318 220 237

*PA: plate appearances

Using the following Rule of Thumb courtesy again of FanGraphs:

Rules of Thumb

Rating wOBA
Excellent .400
Great .370
Above Average .340
Average .320
Below Average .310
Poor .300
Awful .290

…we see that Zimmerman’s presence in the lineup makes Rendon and Werth borderline excellent and the others above average, except for Espinosa, who enjoys league average wOBA with him in the lineup. However, without him in the lineup, things change and for some of Zimmerman’s teammates, quite drastically.

Without Zimmerman, Ian Desmond’s offense takes a huge nosedive, going from above average, to worse than awful, per our rule of thumb; Espinosa suffers similar production drops, as does Ramos, Werth, and Rendon. Oddly enough, LaRoche’s and Span’s production actually improve ever so slightly without Zimmerman’s presence, with Span’s offense the least affected overall by Zimmerman’s bat.

Let’s go one further with the numbers and look at weighted runs created plus (wRC+), a stat that is built off of wOBA, but adds additional granularity in the form of park and league-adjustments, allowing the comparison of these stats with respect to the leagues and parks played in to be performed. Again, FanGraphs provides us the formula:

wRC+ = (((wRAA/PA + League R/PA) + (League R/PA – Park Factor* League R/PA))/ (AL or NL wRC/PA excluding pitchers))*100

Here, the calculations are a little hairier than wOBA. Thankfully, the heavy lifting has been done for us, courtesy Neil Weinberg over at New English D, where you can find a very nifty wRC+ calculator that you can use once you have the proper constants for a given metric and season, which you can find in several places over at FanGraphs.

With wRC+, we can again better measure a players worth (like wOBA), both can now look at these results from both a current and historical perspective. 100 is considered league average, with any number above or below 100 providing us the percentage difference better or worse a player is to average. An as example, we can say Zimmerman’s career 121 wRC+ means he has been 21 percent better than the league average hitter.

Without further ado, the Nats offense with and without Zimmerman, through the lens of wRC+:

Name wRC+, Zim wRC+, no Zim
Desmond 133 73
Espinosa 95 71
Harper 113 99
LaRoche 118 139
Ramos 125 81
Rendon 153 97
Span 103 103
Werth 154 98
Average 124.25 95.13

It should be no surprise that the numbers trend similar to wOBA, given wRC+ being based on wOBA. In general, the Nats are currently and historically a below average offensive team without Zimmerman in the lineup (95.13 average) and are roughly 25 percent better than average with him healthy and taking his hacks. What’s also interesting is how much the team’s offensive leaders of 2014—Desmond, Rendon, and Werth—rely upon Zim’s contributions. Again, the oddballs are LaRoche, who still shows improved numbers without Zimmerman, and Span, whose numbers are exactly the same with and without the Nat’s elder statesman in the lineup. This all being said, caution should be exercised when interpreting Harper’s and Ramos’s number, simply due to sample size considerations, with both having limited PA’s this year due to their own injuries.

Zimmerman’s presence in the Nationals lineup, while always desired, at times has been one that is often under-appreciated, given the talents of his teammates and his difficulties in staying on the field. The numbers presented reflect this, but should nonetheless be taken with a grain of salt, as other variables, in particular, the effects of where each player hits in the lineup and even where they play defensively, can all play potential roles in these results. While the team-level numbers obviously show his worth in the heart of the order, when parsing out the effect of his presence across each of his teammates, we see a much deeper need and reliance upon his pop and his importance to his teammates’ overall offensive successes.

Data courtesy of Baseball-Reference and FanGraphs and current as of August 5th.
__________________

Stuart Wallace is a Contributor to District Sports Page. A neuroscientist by day, the Nevada native also moonlights as an Associate Managing Editor for Beyond the Box Score and a contributor at Camden Depot and Gammons Daily. A former pitcher, his brief career is sadly highlighted by giving up a lot of home runs to former National Johnny Estrada. You can follow him on Twitter @TClippardsSpecs.

Washington Nationals vs New York Mets Series Preview

On Monday, the Washington Nationals lost their make-up series finale with the Baltimore Orioles. Tuesday night, they welcome the New York Mets to town for a three-game series to finish off the homestand. [Read more...]

Washington Nationals vs Baltimore Orioles Game Preview

After splitting a four-game series with the Philadelphia Phillies, the Washington Nationals now welcome the Baltimore Orioles to town for a make-up game to settle their series from July 7-10. [Read more...]

Washington Nationals Game 98 Review: Zimmerman injured, Nationals power past Rockies

RYAN ZIMMERMAN INJURED IN SIXTH AS NATIONALS RALLY PAST ROCKIES

A mile above sea level at Coors Field on Tuesday night, the Washington Nationals came back to defeat the Colorado Rockies 7-4. The victory didn’t come without a cost, however, as Ryan Zimmerman was pulled from the game in the sixth inning with a right leg injury.

The Nationals’ other Zimmerman(n), Jordan Zimmermann, took the mound for his first start since his early exit on July 11th due to a strained right biceps. On Tuesday, he just wasn’t his best and Washington fell into an early hole because of it. [Read more...]

Washington Nationals Game 97 Review: Desmond Leads Nationals Past Rockies

DESMOND GOES 5-FOR-5 AS NATIONALS DEFEAT ROCKIES

At Coors Field against the Colorado Rockies on Monday night to begin their nine game road trip, the Washington Nationals defeated the Rockies 7-2 thanks in large part to a big night from Ian Desmond.

Neither starting pitcher was overpowering, but in 5.2 innings, Doug Fister gave up two runs on nine hits with four strikeouts and two walks. For Colorado, Franklin Morales gave up four runs (three earned) on nine hits with three strikeouts and four walks.

Washington jumped ahead in the fourth inning and didn’t look back. [Read more...]

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