0.04
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A small terminal app to pipe formatted MLB baseball feeds into the terminal for easy manipulation. Includes access to both historic and real-time baseball feeds including play-by-play and pitch-by-pitch data. Visit the homepage for examples!
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 Dependencies

Runtime

~> 0.8.0
~> 4.1.2
~> 1.5.5
 Project Readme

MLB Terminal

Access to historical and real-time MLB baseball scores and stats in the terminal.

Overview

Don't you just wish you could have a little terminal app to stream out real-time stats for a MLB baseball game? Look no further! Please note, the use of this data is subjected to the terms put forth by the MLB. More information can be found here: http://gdx.mlb.com/components/copyright.txt. You're okay if you're using this data for individual use!

Although there are several other gems out there that provide access to MLB Gamday data, mlb_terminal provides a one-stop shop for streaming data and piping it to other processes. For the true sports hacker in us all!

Installation

To install MLB Terminal, please install Ruby 1.9.3 and RubyGems. Then install MLB Terminal via:

gem install mlb_terminal

For more information regarding this gem, please visit the RubyGems page for mlb_terminal.

Syntax

Typical usage starts off by scanning the games for a specific date:

> mlb games --date yesterday

0  Athletics (0-2) @ Tigers (2-0)     12:00 ET (Final)  4-5
1  Nationals (1-0) @ Cardinals (0-1)  3:00 ET (Final)   3-2
2  Yankees (1-0) @ Orioles (0-1)      6:00 ET (Final)   7-2
3  Reds (2-0) @ Giants (0-2)          9:30 ET (Final)   9-0

If the --date flag isn't used, all commands will assume today.

Then you can use the index in the first column to pull out additional data, such as game events, pitches and hits.

> mlb game --date yesterday --pitches 1 | head | cut -f 1,4-6

2012-10-07 15:08:11 -0400  Adam Wainwright  Jayson Werth    B
2012-10-07 15:08:29 -0400  Adam Wainwright  Jayson Werth    S
2012-10-07 15:08:53 -0400  Adam Wainwright  Jayson Werth    B
2012-10-07 15:09:08 -0400  Adam Wainwright  Jayson Werth    S
2012-10-07 15:09:53 -0400  Adam Wainwright  Jayson Werth    S
2012-10-07 15:10:40 -0400  Adam Wainwright  Bryce Harper    X
2012-10-07 15:10:55 -0400  Adam Wainwright  Ryan Zimmerman  S
2012-10-07 15:11:13 -0400  Adam Wainwright  Ryan Zimmerman  B
2012-10-07 15:11:33 -0400  Adam Wainwright  Ryan Zimmerman  S
2012-10-07 15:12:16 -0400  Adam Wainwright  Ryan Zimmerman  S    

> mlb game --date yesterday --hits 1 | head

1  Top     Adam Wainwright  Bryce Harper    O  Groundout  140.56  163.65
1  Bottom  Gio Gonzalez     Carlos Beltran  O  Groundout  140.56  162.65
1  Bottom  Gio Gonzalez     Allen Craig     O  Flyout     128.51  82.33
2  Top     Adam Wainwright  Ian Desmond     H  Single     134.54  87.35
2  Top     Adam Wainwright  Kurt Suzuki     H  Single     87.35   132.53
2  Top     Adam Wainwright  Jayson Werth    O  Groundout  111.45  164.66
2  Bottom  Gio Gonzalez     David Freese    O  Flyout     125.5   47.19
2  Bottom  Gio Gonzalez     Jon Jay         O  Flyout     73.29   108.43
2  Bottom  Gio Gonzalez     Carlos Beltran  O  Flyout     145.58  71.29
3  Top     Adam Wainwright  Ryan Zimmerman  H  Single     113.45  98.39

> mlb game --date yesterday --pitches 1 | head

2012-10-07  1  Top     1   2/3/1  Jayson Werth strikes out swinging.
2012-10-07  1  Top     2   0/0/2  Bryce Harper grounds out, second baseman Daniel Descalso to first baseman Allen Craig.
2012-10-07  1  Top     3   1/3/3  Ryan Zimmerman strikes out swinging.
2012-10-07  1  Bottom  4   1/3/1  Jon Jay called out on strikes.
2012-10-07  1  Bottom  5   2/1/2  Carlos Beltran grounds out, second baseman Danny Espinosa to first baseman Adam LaRoche.
2012-10-07  1  Bottom  6   4/1/2  Matt Holliday walks.
2012-10-07  1  Bottom  7   2/2/3  Allen Craig flies out to center fielder Bryce Harper.
2012-10-07  2  Top     8   4/1/0  Adam LaRoche walks.
2012-10-07  2  Top     9   0/3/1  Michael Morse strikes out swinging.
2012-10-07  2  Top     10  0/1/1  Ian Desmond singles on a line drive to center fielder Jon Jay.  Adam LaRoche to 3rd.

Commands

To find out more about a specific command, use mlb [command] --help to view the appropriate documentation.

  • help: Display global or [command] help documentation.
  • games [options]: Print out a list of scheduled games for the specified date
  • game [options] [game_number]: Print out play-by-play events for a specific game. Use --pitches to output realtime pitch trajectory data.

Global options

  • -h, --help: Display help documentation

  • -v, --version: Display version information

  • -t, --trace: Display backtrace when an error occurs

Data Output Format

Each command outputs data in tab-separated format. When outputting data for a game in progress, the application will continue to pipe in data as it is made available.

games (Game listings)

  1. Game index. A numbered value unique to the specified date that is referenced in the game command.
  2. Opposing teams. A string containing: ` (Wins - Losses) @ (Wins - Losses).
  3. Starting time and status.
  4. Current score.

game (Game events)

  1. Event time.
  2. Inning.
  3. Top or bottom of inning.
  4. Event number.
  5. Event description.

game --pitches (Pitch events)

  1. Pitch time.
  2. Inning.
  3. Top or bottom of inning.
  4. Pitcher name.
  5. Batter name.
  6. Pitch type. (S-Strike, B-Ball, X-hit)
  7. X (x). The horizontal location of the pitch as it crosses the home plate. Units: Old Gameday coordinate system
  8. Y (y). The vertical location of the pitch as it crosses the home plate. Units: Old Gameday coordinate system
  9. Start speed (start_speed). The initial speed of the pitch. Units: miles per hour
  10. End speed (end_speed). The speed measured as it crosses the home plate. Units: miles per hour
  11. Top of Strike Zone (sz_top). The distance from the ground to the top of the strike zone. Units: feet
  12. Bottom of Strike Zone (sz_bot). The distance from the ground to the bottom of the strike zone. Units: feet
  13. Horizontal movement (pfx_x). The horizontal movement of a pitch relative to a theoretical pitch thrown at the same speed with no spin-induced movement. Measured at 40 feet from the home plate. Units: inches
  14. Vertical movement (pfx_z). The vertical movement of a pitch relative to a theoretical pitch thrown at the same speed with no spin-induced movement. Measured at 40 feet from the home plate. Units: inches
  15. Horizontal pitch location at home plate (px). The horizontal location of the pitch as it crosses home plate from the perspective of the umpire. Units: feet
  16. Vertical pitch location at home plate (pz). The height of the pitch as it crosses the front of home plate. Units: feet
  17. Initial horizontal measurement for pitch (x0). Initial horizontal measurement of pitch as measured by PITCHf/x. Units: feet
  18. Initial depth measurement for pitch (y0). Initial deptch measurement of pitch as measured by PITCHf/x. Note that this is fixed per stadium and typically located around 40-50 feet from home plate. Units: feet
  19. Initial height measurement for pitch (z0). Initial height measurement of pitch as measured by PITCHf/x. Units: feet
  20. Initial x velocity (vxo). Initial velocity in the horizontal direction at the initial point. Units: feet per second
  21. Initial y velocity (vxo). Initial velocity in the depth-wise direction at the initial point. Units: feet per second
  22. Initial z velocity (vxo). Initial velocity in the vertical direction at the initial point. Units: feet per second
  23. Breaking point (break_y). The distance from the home plate in which the pitch achieved its greatest deviation from the straight line path between the release point and the front of home plate. Units: feet
  24. Breaking angle (break_angle). The angle at which the pitch crossed the front of home plate as seen by the umpire. Units: degrees
  25. Breaking length (break_length). The greatest distance between the pitch's trajectory and the straight path between release and home plate. Units: inches
  26. Pitch type (pitch_type). Pitch type as classified by the PITCHf/x system.
  • FA = Fastball
  • FF = Four-seam fastball
  • FT = Two-seam fastball
  • FC = Fastball (cutter)
  • FS / SI / SF = Fastball (sinker, split-fingered)
  • SL = Slider
  • CH = Changeup
  • CB / CU = Curveball
  • KC = Knuckle-curve
  • KN = Knuckleball
  • EP = Eephus
  • UN / XX = Unidentified
  • PO / FO = Pitch out
  1. Pitch type confidence (type_confidence). A rating corresponding to the liklihood of the pitch type classification.
  2. Pitch zone (zone).
  3. Nasty factor (nasty). A auto-generated factor that describes the difficulty in hitting the pitch.
  4. Spin direction (spin_dir).
  5. Spin rate (spin_rate).
  6. Comments (cc).
  7. Unknown (mt).

For more information regarding PITCHf/x tracjectory data, please visit http://fastballs.wordpress.com/category/pitchfx-glossary/.

game --hits (Hit events)

You also have access to hit locations for each batter. However, the coordinate system that is used relies on a 250-by-250 pixel image where the corresponding scale depends on which stadium the hit was made at. See the examples of how hits can be plotted on a generic baseball field.

  1. Inning.
  2. Top or bottom of inning.
  3. Pitcher.
  4. Batter.
  5. Hit / Out / Error.
  6. Description of hit.
  7. X-coordinate.
  8. Y-coordinate.

Note that the y-coordinate for the hit is the pixel location from the top of the coordinate frame. See the LaRoche example of how to plot this data.

Examples

List todays games:

> mlb games

0   Red Sox (69-88) @ Orioles (90-67)      7:05 ET (F)   1-9
1   Reds (95-62) @ Pirates (76-81)         7:05 ET (F)   1-0
2   Royals (70-87) @ Indians (66-91)       7:05 ET (F)   5-8
3   Yankees (91-66) @ Blue Jays (69-88)    7:07 ET (F)   11-4
4   Phillies (78-79) @ Marlins (67-90)     7:10 ET (F)   1-2
5   Mets (73-84) @ Braves (91-66)          7:35 ET (F)   3-1
6   Angels (87-70) @ Rangers (92-65)       8:05 ET (F)   7-4
7   Tigers (84-73) @ Twins (66-91)         8:10 ET (F)   2-4
8   Astros (52-105) @ Brewers (80-77)      8:10 ET (F)   7-6
9   Rays (86-71) @ White Sox (83-74)       8:10 ET (F)   1-3
10  Nationals (95-62) @ Cardinals (85-72)  8:15 ET (F)   2-12
11  Cubs (59-98) @ D-backs (79-78)         9:40 ET (F)   3-8
12  Mariners (73-84) @ Athletics (89-68)   10:05 ET (F)  2-8
13  Giants (92-65) @ Padres (74-83)        10:05 ET (F)  3-1
14  Rockies (62-95) @ Dodgers (82-75)      10:10 ET (F)  0-8

How did the Nationals do on 5/30/2012?

> mlb games --date 2012-05-30 | grep -i nationals | cut -f 2,4

Nationals (29-21) @ Marlins (29-22) 3-5

How did Bryce Harper do tonight?

> mlb games | grep Nationals | cut -f 1 | xargs mlb game | grep Harper

2012-09-29 19:18:00  1  2   1/2/1  Bryce Harper singles on a soft line drive to center fielder Jon Jay.
2012-09-29 19:20:11  1  3   1/2/1  Ryan Zimmerman doubles (36) on a fly ball to left fielder Matt Holliday.   Bryce Harper to 3rd.
2012-09-29 19:26:56  1  5   0/0/1  Play reviewed and overturned: Michael Morse hits a grand slam (17) to right field.   Bryce Harper scores.    Ryan Zimmerman scores.    Adam LaRoche scores.
2012-09-29 19:48:35  2  14  3/2/3  Bryce Harper grounds out, second baseman Skip Schumaker to first baseman Allen Craig.
2012-09-29 19:56:08  2  17  3/2/2  Carlos Beltran lines out to center fielder Bryce Harper.
2012-09-29 20:09:19  3  23  3/2/1  Pete Kozma flies out to center fielder Bryce Harper.
2012-09-29 20:38:38  5  36  3/3/1  Bryce Harper called out on strikes.
2012-09-29 21:15:16  7  51  2/2/1  Bryce Harper singles on a line drive to left fielder Matt Holliday.
2012-09-29 21:19:08  7  53  1/1/2  Adam LaRoche singles on a sharp line drive to first baseman Allen Craig.   Bryce Harper to 3rd.
2012-09-29 21:24:34  7  55  0/1/1  Yadier Molina flies out to center fielder Bryce Harper.
2012-09-29 21:37:46  7  61  1/2/2  Matt Carpenter flies out to center fielder Bryce Harper.
2012-09-29 22:10:49  9  71  1/0/2  Bryce Harper doubles (25) on a line drive to left fielder Matt Holliday.
2012-09-29 22:21:20  9  76  0/0/2  Jon Jay out on a sacrifice fly to center fielder Bryce Harper.   Pete Kozma scores.

Visualize pitch speed for Gio Gonzalez on his full game on August 8, 2012.

> mlb games --date 2012-08-08                              \
    | grep Nationals                                       \
    | cut -f 1                                             \
    | xargs mlb game --pitches --date 2012-08-08           \
    | awk 'BEGIN{FS="\t"}{ if ($4=="Gio Gonzalez") print}' \
    | cut -f 1,9,6                                         \
    | Rscript -e "
        library(ggplot2); \
        library(scales); \
        d <- read.csv('stdin', header=F, sep='\\\\t', col.names=c('time', 'type', 'pitch_speed')); \
        png('gio-pitch-speed.png'); \
        ggplot(d, aes(x=as.POSIXlt(time), y=pitch_speed, colour=type, shape=type)) \
          + geom_point() \
          + labs(title='Pitch Speed Over Time for Gio Gonzalez', x='Time', y='Pitch Speed') \
          + scale_x_datetime(breaks=date_breaks('1 hour'), minor_breaks=date_breaks('15 min'), labels=date_format('%H:%M')) \
          + scale_colour_discrete(name = 'Pitch Type') \
          + scale_shape_discrete(name = 'Pitch Type'); \
        dev.off()"

gio-pitch-speed.png

Get a breakdown of pitch types for Ross Detwiler in this season up until 9/30/2012.

> mlb pitchers --date 2012-09-30 11 \
    | grep "Ross Detwiler" \
    | cut -f 2 \
    | xargs mlb pitcher --date 2012-09-30 11 \
    | cut -f 8,9 \
    | awk 'BEGIN{FS="\t"}{arr[$1]+=$2} END {for (i in arr) {print i,arr[i]}}' \
    | sort
Changeup 172
Four-seam Fastball 1136
Sinker 838
Slider 314

What is Adam LaRoche's last 30-day spray pattern compared to that of 60-90 days ago?

> for DAY in `seq 1 30; seq 60 90`
  do
    mlb games --date "$DAY days ago"                 \
      | grep Nationals                               \
      | cut -f 1                                     \
      | xargs mlb game --date "$DAY days ago" --hits \
      | grep "Adam LaRoche"                          \
      | cut -f 5-8                                   \
      | awk -v day="$DAY" '
          BEGIN{FS='\t'; OFS='\t'}
          {
            if (day <= 30) printf("Day 1-30");
            else printf("Day 60-90");
            printf("\t%s\n",  $0)}'
  done \
      | Rscript -e " \
          library(ggplot2); \
          library(png); \
          library(gridExtra); \
          field_url <- 'http://i.imgur.com/0phAi.png'; \
          download.file(field_url, '/tmp/baseball-field.png', mode = 'wb'); \
          m <- readPNG('/tmp/baseball-field.png', FALSE); \
          w <- matrix(rgb(m[,,1],m[,,2],m[,,3], m[,,4] * 0.2), nrow=dim(m)[1]); \
          d <- read.csv('stdin', header=F, sep='\\\\t', col.names=c('time', 'type', 'desc', 'x', 'y')); \
          png('laroche-spray-chart.png', width=600, height=1200); \
          ggplot(d, aes(x, 250-y, shape=type, colour=type)) \
            + geom_point() \
            + annotation_custom(xmin=-Inf, ymin=-Inf, xmax=Inf, ymax=Inf, rasterGrob(w)) \
            + labs(title='Hit Locations For Adam LaRoche', x='', y='') \
            + scale_x_continuous(breaks=c(), limits = c(0,250)) \
            + scale_y_continuous(breaks=c(), limits = c(0,250)) \
            + theme(panel.grid.minor = element_blank(), \
                panel.grid.minor = element_blank(), \
                panel.background = element_blank(), \
                axis.ticks = element_blank()) \
            + facet_grid(time ~ .); \
          dev.off();"

laroach-spray-chart.png