Joshua Rodrigues
@jrodrigues39.bsky.social
M.Ed. Instructional Technology | Free Agent | Formerly Tampa Bay Rays, Baltimore Orioles
https://open.substack.com/pub/jrod20033?utm_source=share&utm_medium=android&r=1gf924
https://open.substack.com/pub/jrod20033?utm_source=share&utm_medium=android&r=1gf924
From an MLB Job posting. It's real and happening
November 15, 2025 at 8:16 PM
From an MLB Job posting. It's real and happening
"But that contrast is exactly what player development is built for. The goal isn’t just to train physical skills; it’s to build players with enough game understanding, anticipation, and adaptability to think for themselves when the moment comes."
jrod20033.substack.com/p/teaching-i...
jrod20033.substack.com/p/teaching-i...
October 31, 2025 at 12:07 AM
"But that contrast is exactly what player development is built for. The goal isn’t just to train physical skills; it’s to build players with enough game understanding, anticipation, and adaptability to think for themselves when the moment comes."
jrod20033.substack.com/p/teaching-i...
jrod20033.substack.com/p/teaching-i...
The differences between these two bullpens in terms of usage and batter's getting a look at these reliever is a huge advantage for the Dodgers
October 16, 2025 at 11:27 PM
The differences between these two bullpens in terms of usage and batter's getting a look at these reliever is a huge advantage for the Dodgers
For tonights game looking at the number of plate appearances for each batter pitcher matchup. I'll leave starters for now but as the series moves on I'll remove them.
October 14, 2025 at 9:11 PM
For tonights game looking at the number of plate appearances for each batter pitcher matchup. I'll leave starters for now but as the series moves on I'll remove them.
When it comes to Approach Angles and Attack Direction interesting to see the intersection between these two and how they play for same side and opposite side batters
October 10, 2025 at 1:05 AM
When it comes to Approach Angles and Attack Direction interesting to see the intersection between these two and how they play for same side and opposite side batters
When people talk tunneling I always think of this from years ago.
August 28, 2025 at 12:48 AM
When people talk tunneling I always think of this from years ago.
How players attack pitches has an effect on the outcome of different swings in different swing locations. Two examples here of how this plays out across the zone.
August 22, 2025 at 12:06 AM
How players attack pitches has an effect on the outcome of different swings in different swing locations. Two examples here of how this plays out across the zone.
For example here is Arozerena. Much Flatter than you would expect basically across the zone.
Vs. Judge who is significantly more vertical across the zone than you would expect him to be.
How players attack pitches in different ways has a decent change in which areas they can handle.
Vs. Judge who is significantly more vertical across the zone than you would expect him to be.
How players attack pitches in different ways has a decent change in which areas they can handle.
August 21, 2025 at 5:40 PM
For example here is Arozerena. Much Flatter than you would expect basically across the zone.
Vs. Judge who is significantly more vertical across the zone than you would expect him to be.
How players attack pitches in different ways has a decent change in which areas they can handle.
Vs. Judge who is significantly more vertical across the zone than you would expect him to be.
How players attack pitches in different ways has a decent change in which areas they can handle.
The way that players attack pitches is dynamic to where the pitch is thrown. Balls that are thrown down and in require players to get more vertical with the bat. While those that are higher in the zone require a flatter approach.
August 21, 2025 at 4:51 PM
The way that players attack pitches is dynamic to where the pitch is thrown. Balls that are thrown down and in require players to get more vertical with the bat. While those that are higher in the zone require a flatter approach.
"The play looked like a massive mix-up in a game that was slipping away, with the Giants on the verge of getting blown out. It made the team look sloppy and instantly became a clip fueling the narrative about their second-half struggles."
jrod20033.substack.com/p/the-play-t...
jrod20033.substack.com/p/the-play-t...
August 16, 2025 at 10:59 AM
"The play looked like a massive mix-up in a game that was slipping away, with the Giants on the verge of getting blown out. It made the team look sloppy and instantly became a clip fueling the narrative about their second-half struggles."
jrod20033.substack.com/p/the-play-t...
jrod20033.substack.com/p/the-play-t...
Brother went to the Sox Marlin's took this pic of the Marlin's Bullpen.
Not uncommon. Most teams with a good process work this type of set up for bullpens BEFORE HOME games.
Few are committed to this DURING HOME game bullpens.
In ANY situation almost no team does this on the road. Marlin's >>>
Not uncommon. Most teams with a good process work this type of set up for bullpens BEFORE HOME games.
Few are committed to this DURING HOME game bullpens.
In ANY situation almost no team does this on the road. Marlin's >>>
August 16, 2025 at 1:17 AM
Brother went to the Sox Marlin's took this pic of the Marlin's Bullpen.
Not uncommon. Most teams with a good process work this type of set up for bullpens BEFORE HOME games.
Few are committed to this DURING HOME game bullpens.
In ANY situation almost no team does this on the road. Marlin's >>>
Not uncommon. Most teams with a good process work this type of set up for bullpens BEFORE HOME games.
Few are committed to this DURING HOME game bullpens.
In ANY situation almost no team does this on the road. Marlin's >>>
Two different hitters, two different timing window setups. Some hitters are able to create separations in their timing windows, while others really play in really compressed areas.
July 25, 2025 at 2:38 PM
Two different hitters, two different timing window setups. Some hitters are able to create separations in their timing windows, while others really play in really compressed areas.
Inside the Red Sox’s Hitters Meeting Shift: Accountability, Learning, and the Next Step
"Too often, coaches talk, players nod, maybe a veteran chimes in, and everyone walks out hoping they’ll remember enough when the game starts.
jrod20033.substack.com/p/are-the-re...
"Too often, coaches talk, players nod, maybe a veteran chimes in, and everyone walks out hoping they’ll remember enough when the game starts.
jrod20033.substack.com/p/are-the-re...
July 20, 2025 at 12:07 PM
Inside the Red Sox’s Hitters Meeting Shift: Accountability, Learning, and the Next Step
"Too often, coaches talk, players nod, maybe a veteran chimes in, and everyone walks out hoping they’ll remember enough when the game starts.
jrod20033.substack.com/p/are-the-re...
"Too often, coaches talk, players nod, maybe a veteran chimes in, and everyone walks out hoping they’ll remember enough when the game starts.
jrod20033.substack.com/p/are-the-re...
Looking at the Risk and Reward of tagging up from second with different out combinations.
Subscribe here:
open.substack.com/pub/jrod2003...
Subscribe here:
open.substack.com/pub/jrod2003...
July 18, 2025 at 4:06 PM
Looking at the Risk and Reward of tagging up from second with different out combinations.
Subscribe here:
open.substack.com/pub/jrod2003...
Subscribe here:
open.substack.com/pub/jrod2003...
For tomorrow's Fundamental looking at a situation that happened just before the All Star Break that got some attention.
If you haven't subscribed you can below:
jrod20033.substack.com
If you haven't subscribed you can below:
jrod20033.substack.com
July 17, 2025 at 7:39 PM
For tomorrow's Fundamental looking at a situation that happened just before the All Star Break that got some attention.
If you haven't subscribed you can below:
jrod20033.substack.com
If you haven't subscribed you can below:
jrod20033.substack.com
Looking at how Managers Calculate Risk and Opportunity in a situation that popped up within the Cubs and Twins game the other day:
Full Breakdown:
jrod20033.substack.com
Full Breakdown:
jrod20033.substack.com
July 11, 2025 at 11:57 AM
Looking at how Managers Calculate Risk and Opportunity in a situation that popped up within the Cubs and Twins game the other day:
Full Breakdown:
jrod20033.substack.com
Full Breakdown:
jrod20033.substack.com
Wrote about this over the July 4th Weekend looking at how the Red Sox are trying to create a more robust and flexible roster.
jrod20033.substack.com/p/the-red-so...
jrod20033.substack.com/p/the-red-so...
July 8, 2025 at 12:58 PM
Wrote about this over the July 4th Weekend looking at how the Red Sox are trying to create a more robust and flexible roster.
jrod20033.substack.com/p/the-red-so...
jrod20033.substack.com/p/the-red-so...
Another one from Wagaman at 3rd. To me this highlights well coaches teams and players who understand situational baseball.
July 8, 2025 at 12:01 PM
Another one from Wagaman at 3rd. To me this highlights well coaches teams and players who understand situational baseball.
Here is Swanson from the 2025 Season
July 8, 2025 at 12:01 PM
Here is Swanson from the 2025 Season
Controlling the throwing lane when baserunners are advancing is a constant. Best teams don’t simply concede the out—they force defenders to make the toughest possible play. They pressure the defense, disrupt rhythm, and turn routine throws into high-stakes decisions.
July 8, 2025 at 12:01 PM
Controlling the throwing lane when baserunners are advancing is a constant. Best teams don’t simply concede the out—they force defenders to make the toughest possible play. They pressure the defense, disrupt rhythm, and turn routine throws into high-stakes decisions.
Right off the rip Umpires have significantly improved at detecting deceptive "knees" and "knees up" over the past five years.
July 3, 2025 at 3:54 PM
Right off the rip Umpires have significantly improved at detecting deceptive "knees" and "knees up" over the past five years.
Wanted to build off this with a quick dashboard that gives you the ability to look at particular players and full teams to get an idea of the different approaches that players and teams have.
You can find the full league and players here:
joshua-rodrigues.shinyapps.io/attack_direc...
You can find the full league and players here:
joshua-rodrigues.shinyapps.io/attack_direc...
July 3, 2025 at 1:30 PM
Wanted to build off this with a quick dashboard that gives you the ability to look at particular players and full teams to get an idea of the different approaches that players and teams have.
You can find the full league and players here:
joshua-rodrigues.shinyapps.io/attack_direc...
You can find the full league and players here:
joshua-rodrigues.shinyapps.io/attack_direc...
Created this to accompany the piece. Gives you more insights into what players are doing compared to their team and compare them to the league as well.
joshua-rodrigues.shinyapps.io/attack_direc...
joshua-rodrigues.shinyapps.io/attack_direc...
July 2, 2025 at 1:20 PM
Created this to accompany the piece. Gives you more insights into what players are doing compared to their team and compare them to the league as well.
joshua-rodrigues.shinyapps.io/attack_direc...
joshua-rodrigues.shinyapps.io/attack_direc...