The RPM Report — July 30, 2018 (week 18)

Ivan Lukianchuk
Jul 30, 2018 · 5 min read

Hi all, I’m Ivan Lukianchuk, the CTO and co-founder of RunPlusMinus™️and this is our weekly report about performances of Major League Baseball players and teams.

For last week’s report (week 17), click here.

The RPM Report gives you a unique insight into on-field performances based on the new RunPlusMinus™️ statistic. For more information about this statistic, please go here.

Wondering how we differ from WAR? Read this. Do we use Park Effect? Yes, read more here.

TL;DR — We’ve built a new baseball statistic that allows us to rate all of the players (pitchers, batters, runners, fielders) on the same scale: performance.

This report has two parts:

  1. The week’s best performers (week 18 — July 22nd through July 29th)
  2. All regular season data up to and including July 29th 2018.

The Best Players of the Week

We’ve reported the top 10 best pitchers and batters of the week. There are separate rankings for starting and relief pitchers.

Players are ranked on the RPM statistic. A total above zero means above average performance for the pitcher or batter. The RPMs in the report have been multiplied by 100 to make it easier to read and compare. The higher the number, the more value and impact that player brought to their team in their role as a pitcher or batter.

In each top 10 list we show how many times a player has made it into a weekly top 10 list, with 1 meaning this is their first.

The Top 10 Starting Pitchers (week 18)

Chris Sale is again in the top 10 for his 5th time, the highest of any returning starting pitcher so far! He’s currently the top pitcher in our top 25. We see Gray and Scherzer return as well, each for their 2nd weekly best. The RPM range this week shrinks back down to around 3.

The lowest starting pitcher RPM total of the week was -48.7 RPMs.

The Top 10 Relief Pitchers (week 18)

Not all relief pitcher situations (outs and bases-occupied) are equal threats. Furthermore, relief pitchers generally face fewer batters that starters. Relief pitcher ratings exclude pitchers with fewer than 3 batters faced.

An impressive week for relievers with half of our top weeklies returning for their 2nd time. The RPM range of 8.41 is less than half of what we saw last week.

For reference, the lowest Relief Pitcher RPM value this week was -74.4.

The Top 10 Batters (week 18)

Trout returns for his 3rd best weekly, and Yelich with his 2nd. Trout is the only batter this week who is currently in the top 25, so it goes to show that most weekly bests continue to go to any player. Our RPM range this week stays at around 3.

The lowest RPM for a batter in week 6 was -54.3.


The State of the Game so Far

We’ve looked at last week, but let’s take a look at the entire season so far up to the 29th of July.

We’ve got a number of interesting charts ranging from top players, team rankings and most overpaid players.

Top 25 Players to July 29th

Like last week, Trout still follows Ramirez, but their rating difference has gotten incredibly small. Martinez and Betts swap spots from last week, Judge stays the same, and Suarez falls one spot.

Chris Sale with his impressive number of top weekly pitching performance has continued to climb the top 25 list and now sits at Rank 14. Verlander has fallen back out and deGrom is now back in.

Things to note: a “rating of 0” is always the average over all active players, with positive values representing above average performance and negative values below average performance. Earned salary is how much of the team’s total salary did that player’s performance justify. Bolded payroll earned means a player is worth more than they are paid (in the context of their own team), and italicized and red means they aren’t. Blank ratings mean the player did not meet a minimum level of participation to be ranked on a specific component.

Where Are They Now? 2017 Top 25 to 2018

2017 brought us over 48 million data points and from that we derived the top 25 player list. How do those players rate in 2018? Below is a chart showing where each player stands today. Note that only 9 players (ranks highlighted in yellow) are still in the top 25! The rankings will change as the season moves forward.

Altuve falls to 26, bringing our weekly count down to 9 out of 25. Andrus makes a big jump, halving his rank from last week, Schoop improves by 200, while Yelich and Abreu double their ranks.

This week we drop to 9 players back in the top 25.

Team Rankings as of July 29th

This week we’ve made sure to include any postponed games, which were missing before, so everyone’s game count should be pretty close to up to date.

We see a many minor shifts in the middle of the rankings, while the top 3 remain the same, although that could be to the fact that Tampa Bay fell a whopping 6 spots since last week. The bottom 5 still stay mostly cemented in their spots, while Toronto drops even further down to rank 24.

Until next time…

Stay tuned for our future reports due out every week this season. If you want to be reminded whenever we release new content, please subscribe to our mailing list to be kept up to date!

If you have any questions, comments, requests or complaints, please feel free to add them in the comments below or to email us at info@runplusminus.com

You can learn more about the RunPlusMinus™️ statistic at RunPlusMinus.com

RunPlusMinus

The best baseball stat

Ivan Lukianchuk

Written by

Entrepreneur, Metalhead, Computer Scientist. Currently CTO @RunPlusMinus — The best baseball stat. Principal Consultant at Strattenburg.

RunPlusMinus

The best baseball stat

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