TJ Rumfield

25-Year-Old First Baseman1B

Colorado Rockies

2026 Stats

AVG

.260

RBI

Rest-of-Season Projections

AVG

RBI

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2026 Fantasy Outlook

Rumfield got a welcomed change of scenery this offseason when he was shipped from the Yankees to the Rockies for reliever Angel Chivilli. Rumfield, a 25-year-old lefty first baseman, was not going to break through with the Yankees anytime soon, but the Rockies are expected to have an open competition at first base. While Rumfield has an intimidating 6-foot-5, 225-pound frame, he's actually hit over power, having slashed .285/.378/.447 with 16 homers, an 11.9 percent walk rate and an 18.4 percent strikeout rate in 138 games at Triple-A in 2025. He will be competing with the likes of Troy Johnston, Blaine Crim and Charlie Condon this spring for reps at first base. If he can win a strong-side platoon role, Rumfield could be useful in deeper leagues, particularly in home games. Read Past Outlooks

RANKS

Rest of Season

From Preseason

Prospect

#387

ADP

League Majors

Bats L

Throws R

40 Man Yes

Height 6'5"

Weight 235

DOB 5/17/2000

Drafted 12th Rd 2021

Clubs fourth homer in loss

1BColorado Rockies

May 3, 2026

Rumfield went 3-for-5 with a solo home run and an additional RBI in Sunday's loss to Atlanta.

Analysis
Rumfield was a bright spot in the loss, driving his first homer since April 20. The 25-year-old got off to a hot start with a .910 OPS through his first 15 games but has cooled off a bit since. Across 35 total contests, the rookie first baseman is slashing .268/.329/.425 with four homers, six doubles, a triple, 19 RBI and 12 runs.

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Batting Stats

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2026 MLB Game Log

2026

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Minor League Game Log

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Batting Order Slot Breakdown

vs Right-Handed Pitchers

vs RHP

vs Left-Handed Pitchers

vs LHP

Left/Right Batting Splits

Since 2024

+143%

OPS vs RHP

2026

+143%

OPS vs RHP

2025

No Stats

2024

No Stats

	OPS	PA	R	HR	RBI	SB	AVG	OBP	SLG
Since 2024vs Left	.349	32	1	0	1	0	.161	.188	.161
Since 2024vs Right	.847	112	11	4	18	0	.290	.357	.490
2026vs Left	.349	32	1	0	1	0	.161	.188	.161
2026vs Right	.847	112	11	4	18	0	.290	.357	.490
2025vs Left	0	0	0	0	0	0	0	0	0
2025vs Right	0	0	0	0	0	0	0	0	0
2024vs Left	0	0	0	0	0	0	0	0	0
2024vs Right	0	0	0	0	0	0	0	0	0
More Splits→	View More Split Stats
Minor League Splits→	View Minor League Split Stats

Home/Away Batting Splits

Since 2024

+18%

OPS at Home

2026

+18%

OPS at Home

2025

No Stats

2024

No Stats

	OPS	PA	R	HR	RBI	SB	AVG	OBP	SLG
Since 2024Home	.795	66	7	3	15	0	.262	.303	.492
Since 2024Away	.676	78	5	1	4	0	.257	.333	.343
2026Home	.795	66	7	3	15	0	.262	.303	.492
2026Away	.676	78	5	1	4	0	.257	.333	.343
2025Home	0	0	0	0	0	0	0	0	0
2025Away	0	0	0	0	0	0	0	0	0
2024Home	0	0	0	0	0	0	0	0	0
2024Away	0	0	0	0	0	0	0	0	0
More Splits→	View More Split Stats

Stat Review

How does TJ Rumfield compare to other hitters?

This section compares his stats with all batting seasons from the previous three seasons (minimum 400 plate appearances)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity and Barrels/PA % are benchmarked against 2019 data (min 400 PA) and Hard Hit Rate is benchmarked against last season's data (min 400 PA). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.

BB/K
Walk to strikeout ratio
BB Rate
The percentage of plate appearances resulting in a walk.
K Rate
The percentage of plate appearances resulting in a strikeout.
BABIP
Batting average on balls in play. Measures how many of a batter’s balls in play go for hits.
ISO
Isolated Power. Slugging percentage minus batting average. A computation used to measure a batter's raw power.
AVG
Batting average. Hits divided by at bats.
OBP
On Base Percentage. A measure of how often a batters reaches base. Roughly equal to number of times on base divided by plate appearances.
SLG
Slugging Percentage. A measure of the batting productivity of a hitter. It is calculated as total bases divided by at bats.
OPS
On base plus slugging. THe sum of a batter's on-base percentage and slugging percentage.
wOBA
Weighted on-base average. Measures a player's overall offensive contributions per plate appearance. wOBA combines all the different aspects of hitting into one metric, weighting each of them in proportion to their actual run value.
Exit Velocity
The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
Hard Hit Rate
A measure of contact quality from Sports Info Solutions. This stat explains what percentage of batted balls were hit hard vs. medium or soft.
Barrels/PA
The percentage of plate appearances where a batter had a batted ball classified as a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
Expected BA
Expected Batting Average.
Expected SLG
Expected Slugging Percentage.
Sprint Speed
The speed of a runner from home to first, in feet per second.
Ground Ball %
The percentage of balls put in play that are on the ground.
Line Drive %
The percentage of balls put in play that are line drives.
Fly Ball %
The percentage of balls put in play that are fly balls.