Dodgers and Rockies Make a Player Swap: A Super Simple Guide

What Just Happened? (The Trade Timeline)

Baseball teams can trade players like kids swap Pokémon cards. Here’s the play‑by‑play from July 20, 2026:

• 1:04 pm: Reporter Joel Sherman said the Los Angeles Dodgers and Colorado Rockies (two teams that play in the same division, meaning they are rivals in the same neighborhood) agreed to a trade. The Rockies would send a right‑handed pitcher (a player who throws with his right hand) named Seth Halvorsen to the Dodgers. In return, the Dodgers would give Colorado two young prospects (promising minor‑league players) whose names weren’t known yet.
• 1:11 pm: Reporter Jon Heyman revealed those two prospects: minor‑league pitcher Nick Frasso and minor‑league outfielder (a player who catches balls in the grassy outer field) Landyn Vidourek are heading to the Rockies.

Who is Seth Halvorsen?

Imagine a guy who can throw a baseball as fast as a car zooming on the highway. That’s Seth!

• He is 26 years old.
• He was chosen by Colorado in the 7th round of the 2023 draft (a yearly event where teams pick new players).
• Only about a year after being picked, he played in the major leagues (the top tier of baseball).
• He has thrown 71 innings across parts of three big‑league seasons.

His Baseball Report Card (Explained Simply)

We use some numbers to see how good a pitcher is. Don’t worry—we’ll translate!

• ERA (Earned Run Average): Think of it as “how many runs he lets the other team score per game.” Lower is better. His career MLB ERA is 4.31 (okay, not amazing).
• Fastball speed: Average 99.6 mph – that’s blazing fast!
• Swinging‑strike rate (12.4%): How often batters swing and miss—good!
• Ground‑ball rate (48.8%): How often hitters hit the ball on the ground (easier to catch)—good!
• Walk rate (12.1%): How often he accidentally throws balls outside the strike zone and gives free passes—too high (he needs better “command,” meaning the ability to throw where he wants).
• Home runs allowed (1.52 per 9 innings): A bit too many.

Important: Halvorsen is currently on the 15‑day injured list (baseball’s “sick leave” for hurt players) because his shoulder is inflamed (sore). He will go to the Dodgers’ minor‑league team in Oklahoma City (called Triple‑A, one step below the majors) to finish a rehab assignment (practice games to get healthy). After that, the Dodgers can either send him formally to the minors or bring him right up to the big‑league bullpen (the group of relief pitchers who finish games).

Why Do the Dodgers Want Him?

The Dodgers are like a school that’s great at helping talented kids improve.

• Halvorsen has more than five seasons of “club control”—meaning the team can keep him for a long time at a cheap price.
• This year in Triple‑A, he’s been fantastic: 2.04 ERA, 32.4% strikeouts, 9.5% walks, 45.2% ground balls, and averaged 99.9 mph in 17⅓ innings.
• He is a “development project”—a player with raw talent who needs polishing. The Dodgers have done this before with guys like Evan Phillips, Will Klein, Alex Vesia, and Anthony Banda (and they’ve had some misses too, but overall they’re good at it).
• The Dodgers have the best record in baseball (63‑37), but they still always want more bullpen help.
• Several Dodgers relief pitchers are hurt:
  • Edwin Díaz (elbow bone‑spur surgery since late April)
  • Blake Treinen (elbow inflammation since mid‑June)
  • Brusdar Graterol (back surgery June 1, no pitches this year)
  • Ben Casparius (shoulder inflammation since mid‑April)

Important: Even with those injuries, the current Dodgers bullpen is strong: Tanner Scott, Will Klein, Alex Vesia, Edgardo Henriquez, and Jack Dreyer all have ERAs under 3.00. Only Henriquez can match Halvorsen’s crazy speed.

What Do the Rockies Get?

Colorado receives two young players:

• Nick Frasso – a 27‑year‑old pitcher who hasn’t yet pitched in the majors (though he spent two days on a big‑league roster). He was originally drafted by the Toronto Blue Jays in 2020 (4th round) and came to the Dodgers in 2022 in a trade for pitcher Mitch White. Before his injury, he was ranked a top‑100 prospect (a “future star” list) by multiple scouting groups (MLB.com #80, Baseball America #97, Baseball Prospectus #79).
• Landyn Vidourek – an outfielder the Dodgers picked in the third round of the draft just last summer.

The Rockies’ general manager Josh Byrnes (who is second‑in‑command under president Paul DePodesta) was hired this past offseason. He spent over ten years in the Dodgers’ front office as senior vice president of baseball operations, so he knows both players very well.

Nick Frasso’s Bumpy Road

Injuries are like roadblocks on a hike. Frasso has hit a few.

• Right after his top‑100 rankings, he needed surgery to repair the labrum (a key part) in his right shoulder. That spring 2024 injury wiped out his whole 2024 season.
• He returned in 2025, pitching 77 innings as both a starter and reliever. His results were so‑so, but when moved to the bullpen full‑time in late May, his strikeout rate jumped from ~14‑15% to 23.4% and walk rate improved to 10.7%.
• In 2026, he’s worked almost only as a reliever (except one 1⅔‑inning “opener” start). His ERA is 4.74, but his strikeout rate is huge (35.1%) and walk rate is 14.9%.
• Good signs: His fastball velocity returned to 96.2 mph (up from 94.6). Batters chase bad pitches more (33% chase rate vs 24.5% before) and make less contact (72% vs 78.1%). His swinging‑strike rate went from 9.3% to 12.7%.
• He’s been unlucky: even though hitters are barely hitting the ball hard (average exit speed only 87.1 mph, hard‑hit rate 32.1%), they are getting hits on .407 of balls put in play (way above normal). That’s like flipping a coin and it always landing on the other team’s favor.

What Happens Next? (Step by Step)

1. Halvorsen finishes his rehab games in Oklahoma City.
2. The Dodgers decide whether to keep him in the minors or call him up to the big‑league bullpen.
3. Frasso and Vidourek join the Rockies’ minor‑league system.
4. Fans watch to see if the Dodgers’ “magic touch” turns Halvorsen into a star.

Callout: This is a low‑risk move for Los Angeles: they trade two prospects for a hard‑throwing pitcher they can keep for years. Colorado gets young players to build their future, guided by a GM who already knows them.

Summary

The Dodgers sent two minor‑league prospects—pitcher Nick Frasso and outfielder Landyn Vidourek—to the Rockies for right‑handed pitcher Seth Halvorsen. Halvorsen throws super fast but is currently hurt and has some control issues; however, his underlying numbers are exciting, and the Dodgers have a history of fixing such players. The Dodgers add depth to a bullpen that already is good but has some injured stars. The Rockies get a formerly top‑rated prospect in Frasso and a recent draft pick in Vidourek, with a front‑office boss who knows them well.

FAQ

Q1: What does “intra‑division trade” mean?
A: It means both teams (Dodgers and Rockies) play in the same division (National League West), so they are regular rivals who swapped players.

Q2: What is a “prospect”?
A: A young player in the minor leagues who is believed to have the potential to become a good major‑league player.

Q3: Why would the Dodgers want a pitcher with a so‑so ERA?
A: His fast velocity, high strikeout rates, and ground‑ball trends show hidden talent. Plus, the Dodgers are experts at improving pitchers like him, and he is cheap to keep for over five years.

Q4: What does “minor‑league option” mean?
A: An option lets a team send a player to the minors without losing ownership of him. Halvorsen is using his first option year now, and he has two more left after this season.

Q5: Why does Nick Frasso’s ERA look bad if he’s actually doing well?
A: He has a high ERA (4.74) but strikes out a lot of batters and allows very weak contact. Luck (a very high rate of balls in play becoming hits) made his results look worse than his actual pitching.