George Kirby

24-Year-Old PitcherSP
2022 Fantasy Outlook
At this point, Kirby seems like a near finished product by pitching prospect standards, with the main question mark being durability. He regularly went seven or eight days in between starts last year and missed three weeks in May and and another four weeks in July with shoulder/arm issues. All told, the 6-foot-4 righty logged a 2.53 ERA, 1.08 WHIP and 80:15 K:BB in 67.2 innings (15 starts) across High-A and Double-A. He has always had some of the best command and control in the minors, and Kirby now boasts a monster mid-to-high 90s fastball with good life and three secondary offerings with upside -- his plus upper-80s slider is currently his best offspeed pitch. It's easy to see Kirby maxing out as the Mariners' best pitcher and a true frontline arm if he can start pushing up to 150-plus innings, but just getting to 120-plus innings would be an accomplishment in 2022. Read Past Outlooks
RANKSFrom Preseason
#579
ADP
$Signed a one-year contract with the Mariners in May of 2022.
Takes first loss
PSeattle Mariners
May 19, 2022
Kirby (0-1) allowed five earned runs on eight hits and one walk while striking out three across five innings to take the loss Thursday against the Red Sox.
ANALYSIS
Kirby was primarily undone by a pair of home runs hit by Trevor Story, which accounted for four of his earned runs. However, Kirby allowed two additional extra-base hits and induced only six swinging strikes across 71 total pitches. It was the second consecutive disappointing start for Kirby, though he faced two dangerous offenses in the Mets and Red Sox. He now owns a 3.60 ERA and 11:2 K:BB across his first 15 big-league innings.
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Pitching Stats
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2022
2020
2022 MLB Game Log
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Scoring
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2020 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
80
Last 10 Games
80
Last 5 Games
80
How many pitches does George Kirby generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does George Kirby generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2020
 
 
-65%
BAA vs LHP
2022
 
 
-65%
BAA vs LHP
2021
No Stats
2020
No Stats
BAA Batters K BB H 2B 3B HR
Since 2020vs Left .147 36 8 0 5 1 0 0
Since 2020vs Right .417 26 3 2 10 2 1 2
2022vs Left .147 36 8 0 5 1 0 0
2022vs Right .417 26 3 2 10 2 1 2
2021vs Left 0 0 0 0 0 0 0 0
2021vs Right 0 0 0 0 0 0 0 0
2020vs Left 0 0 0 0 0 0 0 0
2020vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2020
 
 
-100%
ERA at Home
2022
 
 
-100%
ERA at Home
2021
No Stats
2020
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2020Home 0.00 0.67 6.0 0 0 0 10.5 0.0 0.0
Since 2020Away 6.00 1.44 9.0 0 1 0 4.0 2.0 2.0
2022Home 0.00 0.67 6.0 0 0 0 10.5 0.0 0.0
2022Away 6.00 1.44 9.0 0 1 0 4.0 2.0 2.0
2021Home 0 0 0 0 0 0 0 0 0
2021Away 0 0 0 0 0 0 0 0 0
2020Home 0 0 0 0 0 0 0 0 0
2020Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does George Kirby compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. 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, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in 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.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
5.50
 
K/9
6.6
 
BB/9
1.2
 
HR/9
1.2
 
Fastball
95.8 mph
 
ERA
3.60
 
WHIP
1.13
 
BABIP
.293
 
GB/FB
1.24
 
Left On Base
63.4%
 
Exit Velocity
84.7 mph
 
Barrels/BBE
1.6%
 
Spin Rate
2051 rpm
 
Balls Hit 95+ MPH
30.6%
 
Swinging Strike
11.2%
 
Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2021
2020
On paper, Kirby stacks up with any pitching prospect in the game. The only problem is that we're still mostly working with scouting grades and biographical data, rather than a track record in pro games. His command projects to be as good as, if not better than, that of any other top pitching prospect, which is a nice place to start. He also has a picturesque delivery coming from a prototypical 6-foot-4, 200-pound frame. Kirby's command has typically been the highlight of his scouting report, but his low-90s fastball ticked up and became a mid-90s pitch that touched 99 mph this past summer at the alternate training site. The 20th overall pick in 2019 out of Elon (a small university in North Carolina) also boasts three average or better secondaries, with his slider and changeup each showing plus potential. He is advanced enough to reach the majors with fewer than 100 pro innings under his belt.
Amateur pitchers with Kirby's potentially elite command that also happen to have legitimate stuff are a rare breed. After walking six batters in 88.1 innings as a junior at Elon, Kirby issued zero walks over 23 innings in his debut. He has a prototypical 6-foot-4, 205-pound frame and a picturesque right-handed delivery. While he didn't face tough competition at the small North Carolina school, Kirby has four average or better pitches, with his low-90s fastball playing as a plus pitch due to his command and extension. Given his size, he could realistically gain fastball velocity with pro instruction. With this profile, we should expect excellent numbers, particularly in the lower levels, where his command and deep arsenal should carry the day. If a couple of his offspeed pitches become plus offerings, Kirby could develop into at least a No. 2 starter. Without any improvements, he could be a No. 4.
More Fantasy News
Less impressive in second start
PSeattle Mariners
May 14, 2022
Kirby did not factor in the decision against the Mets on Saturday, hurling four innings and allowing three runs (one earned) on three hits and one walk while striking out one.
ANALYSIS
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Stays in rotation
PSeattle Mariners
May 10, 2022
Kirby will make his second start for the Mariners in Saturday's game against the Mets in New York, Shannon Drayer of 710 ESPN Seattle reports.
ANALYSIS
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Stellar in debut
PSeattle Mariners
May 8, 2022
Kirby struck out seven and allowed four hits in six scoreless innings in a 2-1 win Sunday over Tampa Bay. He did not factor into the decision.
ANALYSIS
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Called up ahead of MLB debut
PSeattle Mariners
May 8, 2022
The Mariners selected Kirby's contract from Double-A Arkansas ahead of his scheduled start Sunday against the Rays.
ANALYSIS
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Heading to big leagues
PSeattle Mariners
May 7, 2022
Kirby will join the Mariners' major-league roster shortly, Jeff Passan of ESPN.com reports.
ANALYSIS
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