P | Boston Red Sox
Bats/Throws: R/R | 6' 1" 195 lbs | Age: 26
W L ERA G GS SV IP SO WHIP
2023 12 11 4.24 28 28 0 157 132 1.34
2024 14 8 4.49 30 30 0 162.1 153 1.36
2025 11 9 3.35 29 28 0 166.2 124 1.24
4 Seasons 39 36 4.09 100 97 0 543.1 464 1.36
G W-L ERA IP SO WHIP
2023 28 12-11 4.24 157 132 1.34
2024 30 14-8 4.49 162.1 153 1.36
2025 29 11-9 3.35 166.2 124 1.24
4 Seasons 100 39-36 4.09 543.1 464 1.36
MLB Percentile Rankings
Movement Profile (Induced Break)
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Statcast Statistics

Season Age Pitches Batted
Balls
Barrels Barrel % Barrel/PA Exit
Velocity
Max EV Launch
Angle
LA Sweet-
Spot %
XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2022 23 997 184 10 5.4 3.7 88.0 112.2 5.3 32.1 .246 .346 .355 .303 .334 37.5 20.5 10.1 4.71 3.80
2023 24 2618 485 34 7.0 5.1 89.5 116.7 4.9 28.0 .252 .410 .334 .314 .359 44.3 19.8 6.7 4.24 4.16
2024 25 2710 474 35 7.4 5.0 88.5 115.2 6.2 34.2 .256 .400 .319 .328 .376 41.1 21.8 9.1 4.49 4.56
2025 26 2697 504 36 7.1 5.1 88.8 113.7 9.0 30.8 .260 .404 .297 .327 .355 39.3 17.7 8.4 3.35 4.52
Player 9022 1647 115 7.0 4.9 88.8 116.7 6.6 31.1 .255 .398 .321 .321 .360 41.1 19.8 8.3
MLB 7.2 4.9 88.6 122.9 12.4 33.3 .245 .404 .315 .315 .368 37.0 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Bello relies on 5 pitches.
Sinker
(35.0%) ,
Sweeper
(19.0%) ,
Cutter
(15.7%) ,
Changeup
(15.2%) ,
Four Seamer
(15.1%) ,


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Pitch Tracking



Batted Ball Profile

AIR: Fly Balls + Line Drives + Popups All Batted Balls Batted Ball Breakdown
Season GB % AIR % FB % LD % PU % Pull % Straight % Oppo % Pull GB % Straight GB % Oppo GB % Pull AIR % Straight AIR % Oppo AIR %
2022 55.4 44.6 17.4 24.5 2.7 38.0 39.1 22.8 27.7 20.1 7.6 10.3 19.0 15.2
2023 56.3 43.7 20.4 19.2 4.1 45.2 36.3 18.6 30.5 22.7 3.1 14.6 13.6 15.5
2024 51.3 48.7 19.6 24.3 4.9 35.9 42.0 22.2 20.9 23.2 7.2 15.0 18.8 15.0
2025 50.0 50.0 24.0 21.2 4.8 39.9 36.9 23.2 24.2 20.0 5.8 15.7 16.9 17.5
Player 52.8 47.2 20.9 21.9 4.4 40.1 38.4 21.5 25.5 21.7 5.6 14.6 16.7 15.9
MLB 44.2 55.8 24.0 24.7 7.1 37.4 37.4 25.1 20.6 17.6 5.9 16.7 19.7 19.3
! Note: All figures in this table cover the period 2015-present.

Quality of Contact

Season Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2022 4.9 42.4 16.8 25.0 4.9 5.4 3.7
2023 3.3 43.7 18.1 21.2 6.4 7.0 5.1
2024 3.8 40.7 17.1 25.3 5.5 7.4 5.0
2025 3.4 36.5 22.0 26.0 5.0 7.1 5.1
Player 3.6 40.5 18.9 24.3 5.5 7.0 4.9
MLB 4.0 32.4 24.9 24.4 5.9 7.2 4.9
! Note: All figures in this table cover the period 2015-present.

Pitch Movement


How this works: This section shows two different ways to evaluate pitch movement. On the left, “Total Movement” shows the real-world movement of a pitch, including the forces of gravity, which affects every pitch thrown. Since gravity requires time, and slower pitches aren't 'better' just because they have more time to move, a pitch's movement is compared to other pitches of the same pitch type, within +/- 2 MPH and +/- 0.5 feet of extension/release. On the right, Induced Movement (or IVB) is reported without gravity, and attempts to isolate movement created by the pitcher's ability to spin and manipulate the ball.
Total Movement (in inches, w/ gravity)Induced Movement (in inches, w/o gravity)
YearPitchTeamHand#MPHVertical
Drop
vs.
Comparable
Horizontal
Break
vs.
Comparable
Vertical
Break
vs. AvgHorizontal
Break
vs. Avg
2025 4-Seam Fastball BOS R 408 95.1 16.7 -1.3 7.7ARM -1.2 13.5 -2.3 7.7ARM 0.1
2025 Sweeper BOS R 513 85.7 40.5 3.3 9.9GLV -3.1 -3.2 4.3 9.9GLV -4.0
2025 Cutter BOS R 423 88.2 32.4 -5.2 0.9GLV -1.2 2.6 -5.7 0.9GLV -1.3
2025 Changeup BOS R 410 88.8 30.2 -1.8 16.0ARM 1.2 4.5 -0.4 16.0ARM 1.6
2025 Sinker BOS R 943 95.3 24.5 1.3 16.9ARM 1.0 5.7 1.7 16.9ARM 1.8
2024 4-Seam Fastball BOS R 127 95.7 17.2 -1.8 8.9ARM -0.1 12.6 -3.1 8.9ARM 1.3
2024 Sweeper BOS R 753 86.8 36.8 1.3 7.9GLV -4.2 -0.7 2.1 7.9GLV -6.2
2024 Changeup BOS R 730 87.6 32.5 0.1 16.1ARM 1.2 3.2 1.7 16.1ARM 1.9
2024 Sinker BOS R 1093 95.7 26.0 2.2 17.2ARM 1.4 4.0 3.2 17.2ARM 2.3
2024 Slider BOS R 7 88.1 38.2 4.9 0.1ARM -4.1 -2.8 4.5 0.1ARM -4.9
! Note: Years are in reverse order.

Run Values by Pitch Type

Year Pitch Type Team RV/100 Run Value Pitches % PA BA SLG wOBA Whiff% K% PutAway % xBA xSLG xwOBA Hard Hit %
2025 Sinker 0.8 7 943 35.0 280 .251 .305 .337 10.8 14.3 19.1 .271 .355 .333 39.8
2025 Sweeper -0.3 -2 513 19.0 117 .202 .356 .283 26.6 29.1 17.4 .257 .492 .340 37.8
2025 Cutter 0.2 1 423 15.7 96 .230 .437 .331 24.6 15.6 19.7 .263 .492 .356 50.0
2025 Changeup -0.3 -1 410 15.2 109 .219 .324 .252 32.8 20.2 17.2 .282 .391 .305 27.7
2025 4-Seam Fastball -0.3 -1 408 15.1 98 .271 .447 .344 13.7 13.3 9.2 .205 .358 .293 41.9
2024 Sinker -0.6 -6 1,093 40.3 301 .309 .440 .385 11.1 14.0 16.3 .287 .436 .367 50.2
2024 Sweeper -0.6 -4 753 27.8 176 .269 .404 .336 34.4 28.4 22.4 .262 .398 .331 37.6
2024 Changeup 0.0 0 730 26.9 197 .177 .354 .271 36.9 26.9 23.5 .213 .370 .287 30.2
2024 4-Seam Fastball 0.3 0 127 4.7 27 .120 .160 .172 21.8 29.6 10.1 .199 .263 .211 27.8
2024 Slider 1.8 0 7 0.3 1 .000 .000 .000 0.0 0.0 0.0 .411 .455 .370 100.0
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2025 Changeup 404 88.8 96 17.4 2:00 2:45 -45
2025 Cutter 423 88.2 13 2.2 12:00 10:30 90
2025 4-Seam Fastball 408 95.1 81 15.4 1:30 1:00 30
2025 Sinker 932 95.3 88 18.4 1:30 2:30 -60
2025 Sweeper 513 85.7 50 11.8 7:15 8:00 -45
2024 Changeup 729 87.6 98 17.1 2:15 2:45 -30
2024 4-Seam Fastball 127 95.7 82 15.2 1:30 1:15 15
2024 Sinker 1,076 95.7 88 18.4 1:45 2:45 -60
2024 Sweeper 751 86.8 37 9.1 7:30 8:30 -60
! Note: Years are in reverse order.
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! Note: This table is showing data from the PITCHER perspective.
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Pitcher Arm Angle

! Note: Data is available from 2020 through the present.
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Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2022 267 997 4 4 -13 -3 -8
2023 668 2,618 -1 19 -11 -12 -5
2024 702 2,710 -2 23 -17 -14 -10
2025 700 2,697 15 20 -19 -13 4
Player 2,337 9,022 15 67 -59 15 -19
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Plate Discipline

Season Pitches Zone % Zone Swing % Zone Contact % Chase % Chase Contact % Edge % 1st Pitch Strike % Swing % Whiff % Meatball % Meatball Swing %
2022 997 44.7 65.2 81.8 30.3 60.5 41.0 62.7 45.9 26.0 6.2 69.4
2023 2,618 47.8 69.1 83.4 29.4 59.0 42.2 64.5 48.4 24.4 7.2 83.0
2024 2,710 47.1 65.1 83.2 29.7 56.5 41.8 64.1 46.3 25.9 6.4 82.7
2025 2,697 48.7 65.1 89.4 27.5 58.7 43.9 63.0 45.8 20.1 7.1 76.4
Player 9,022 47.5 66.3 84.9 29.0 58.3 42.4 63.7 46.7 23.7 6.8 79.5
MLB 48.9 67.0 82.5 28.4 58.0 42.7 61.1 47.3 25.0 7.3 76.3
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year xwOBA /
xERA
xBA xSLG xISO xOBP Brl Brl% EV Hard
Hit%
K% BB% Whiff% Chase
Rate
FB
Velo
FB
Spin
CB
Spin
Extension
2022 52 39 73 90 23 78 80 61 54 33 20 55 58 88 31 50
2023 50 37 42 51 58 18 65 37 13 26 76 37 58 71 5 39
2024 23 25 41 55 17 18 56 58 29 40 33 53 60 77 11 38
2025 25 22 40 59 16 21 69 62 60 16 41 13 37 64 15 40
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Expected Home Runs

Adjusted

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2022 23.45 1 2.8 -2 6 4 0 0.0
2023 23.99 24 23.8 0 10 24 5 20.8
2024 22.69 19 18.9 0 5 17 8 42.1
2025 23.53 17 17.5 -1 4 12 10 58.8
Player 23.44 61 62.9 -2 25 57 23 37.7
Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.
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Expected Home Runs by Park

Adjusted

Year HR
2022 1 2 2 4 1 2 3 2 1 1 1 5 4 3 2 4 3 3 3 1 3 3 6 4 3 1 2 6 4 2 3
2023 24 20 21 22 26 23 27 23 20 20 20 26 24 21 27 26 26 22 26 28 23 29 32 28 18 19 25 28 24 24 15
2024 19 21 17 20 15 20 21 17 12 13 17 19 23 16 18 18 18 15 22 23 22 19 28 24 16 17 15 21 25 20 15
2025 17 16 15 16 18 17 17 16 18 14 16 19 16 24 19 15 22 17 17 19 18 17 21 19 15 15 17 20 19 17 15
Player 61 59 55 62 60 62 68 58 51 48 54 69 67 64 66 63 69 57 68 71 66 68 87 75 52 52 59 75 72 63 48
Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.
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Year to Year Changes

2025 +/-   2024 +/-   2023 +/-   2022
Results
BA .237 -.015 .252 -.018 .270 -.045 .315
xBA .260 +.004 .256 +.004 .252 +.006 .246
OBP .314 -.016 .330 +.006 .324 -.064 .388
xOBP .336 .000 .336 +.026 .310 -.018 .328
SLG .355 -.039 .394 -.059 .453 +.037 .416
xSLG .404 +.004 .400 -.010 .410 +.064 .346
ISO .118 -.023 .141 -.042 .183 +.082 .101
xISO .144 -.001 .145 -.013 .158 +.058 .100
BABIP .270 -.033 .303 -.004 .307 -.097 .404
wOBA .297 -.022 .319 -.015 .334 -.021 .355
xwOBA .327 -.001 .328 +.014 .314 +.011 .303
wOBACON .314 -.049 .363 -.023 .386 -.023 .409
xwOBACON .355 -.021 .376 +.017 .359 +.025 .334
BACON .293 -.038 .331 -.010 .341 -.067 .408
xBACON .324 -.016 .340 +.019 .321 +.001 .320
Statcast Hit Metrics
Hard Hit % 39.3 -1.8 41.1 -3.2 44.3 +6.8 37.5
Avg Exit Velocity 88.8 +0.3 88.5 -1.0 89.5 +1.5 88.0
Launch Angle Sweet-Spot % 30.8 -3.4 34.2 +6.2 28.0 -4.1 32.1
Barrel % 7.1 -0.3 7.4 +0.4 7.0 +1.6 5.4
Avg Launch Angle 9.0 +2.8 6.2 +1.3 4.9 -0.4 5.3
Statcast Bat Tracking
Bat Speed 72.1 +0.2 71.9 +0.1 71.8 -- --
Attack Angle 11° 11° 10° -- --
Ideal Attack Angle % 52.3 +7.1 45.2 -1.5 46.7 -- --
Attack Direction -3° -3° -2° -- --
Swing Path - Tilt 34° 34° 34° -- --
Swing Length 7.4 0.0 7.4 0.0 7.4 -- --
Statcast Pitch Metrics
Fastball Velocity 93.6 -2.1 95.7 +0.7 95.0 -1.5 96.5
Breaking Velocity 85.7 -1.1 86.8 +1.5 85.3 +0.5 84.8
Offspeed Velocity 88.8 +1.2 87.6 +1.4 86.2 -2.0 88.2
Batted Ball Results
Barrels 36 +1 35 +1 34 +24 10
Popup % 4.8 -0.1 4.9 +0.8 4.1 +1.4 2.7
Flyball % 24.0 +4.4 19.6 -0.8 20.4 +3.0 17.4
Line Drive % 21.2 -3.1 24.3 +5.1 19.2 -5.3 24.5
Groundball % 50.0 -1.3 51.3 -5.0 56.3 +0.9 55.4
Pull % 39.9 +4.0 35.9 -9.3 45.2 +7.2 38.0
Straight Away % 36.9 -5.1 42.0 +5.7 36.3 -2.8 39.1
Opposite Field % 23.2 +1.0 22.2 +3.6 18.6 -4.2 22.8
Weak Contact % 3.4 -0.4 3.8 +0.5 3.3 -1.6 4.9
Pull Airball % 15.7 +0.7 15.0 +0.4 14.6 +4.3 10.3
Topped Contact % 36.5 -4.2 40.7 -3.0 43.7 +1.3 42.4
Under Contact % 22.0 +4.9 17.1 -1.0 18.1 +1.3 16.8
Flare/Burner Contact % 26.0 +0.7 25.3 +4.1 21.2 -3.8 25.0
Solid Contact % 5.0 -0.5 5.5 -0.9 6.4 +1.5 4.9
HR/FB % 13.2 -7.2 20.4 -3.8 24.2 +21.1 3.1
Popups 24 +1 23 +3 20 +15 5
Flyballs 121 +28 93 -6 99 +67 32
Line Drives 107 -8 115 +22 93 +48 45
Groundballs 252 +9 243 -30 273 +171 102
Plate Discipline
In Zone % 48.7 +1.6 47.1 -0.7 47.8 +3.1 44.7
Out of Zone % 51.3 -1.6 52.9 +0.7 52.2 -3.1 55.3
Edge % 43.9 +2.1 41.8 -0.4 42.2 +1.2 41.0
Zone Swing % 65.1 0.0 65.1 -4.0 69.1 +3.9 65.2
Out of Zone Swing % 27.5 -2.2 29.7 +0.3 29.4 -0.9 30.3
In Zone Contact % 89.4 +6.2 83.2 -0.2 83.4 +1.6 81.8
Out of Zone Contact % 58.7 +2.2 56.5 -2.5 59.0 -1.5 60.5
Whiff % 20.1 -5.8 25.9 +1.5 24.4 -1.6 26.0
First Strike % 63.0 -1.1 64.1 -0.4 64.5 +1.8 62.7
First Pitch Swing % 32.0 -0.6 32.6 -2.4 35.0 -1.6 36.6
Swing % 45.8 -0.5 46.3 -2.1 48.4 +2.5 45.9
Meatball Swing % 76.4 -6.3 82.7 -0.3 83.0 +13.6 69.4
Meatball % 7.1 +0.7 6.4 -0.8 7.2 +1.0 6.2
Zone Swing & Miss % 10.6 -6.2 16.8 +0.2 16.6 -1.6 18.2
Out of Zone Swing & Miss % 41.3 -2.2 43.5 +2.5 41.0 +1.5 39.5
In Zone 1,314 +37 1,277 +26 1,251 +805 446
Out of Zone 1,383 -50 1,433 +65 1,368 +817 551
Edge 1,183 +51 1,132 +27 1,105 +696 409
In Zone Swings 856 +25 831 -34 865 +574 291
Out of Zone Swings 380 -45 425 +23 402 +235 167
In Zone Swing & Misses 91 -49 140 -4 144 +91 53
Out of Zone Swing & Misses 157 -28 185 +20 165 +99 66
Basic
Pitches 2,697 -13 2,710 +92 2,618 +1,621 997
PA 700 -2 702 +34 668 +400 268
AB 620 -2 622 +11 611 +373 238
Hits 147 -10 157 -8 165 +90 75
Singles 107 0 107 +4 103 +48 55
Doubles 23 -8 31 -5 36 +19 17
Triples 1 +1 0 -2 2 0 2
Home Runs 16 -3 19 -5 24 +23 1
Walks 59 -5 64 +19 45 +18 27
Strikeouts 124 -29 153 +21 132 +77 55
K% 17.7 -4.1 21.8 +2.0 19.8 -0.7 20.5
BB% 8.4 -0.7 9.1 +2.4 6.7 -3.4 10.1
HBP 13 +2 11 +5 6 +4 2
Batted Balls 504 +30 474 -11 485 +301 184
Number of Fastballs 1,774 +554 1,220 -309 1,529 +992 537
Number of Offspeed 410 -320 730 +104 626 +390 236
Number of Breaking 0 -7 7 -301 308 +84 224
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2022 Shifts 267 .355 160 1 0.6 107 71 66.4
2023 Shades 668 .334 346 10 2.9 322 207 64.3
2024 Shades 699 .321 322 14 4.3 377 220 58.4
2025 Shades 697 .299 288 14 4.9 409 295 72.1
! Note: Shifts are through the 2022 season, Shaded starting from the 2023 season, Shift: three or more infielders are on the same side of second base, Shade: positioned outside of their typical responsible slices of the field.
Learn more about how positioning is defined here

Pitch Tempo

Bases EmptyRunners On Base
SeasonTeamPitchesTempoFast %Slow %PitchesTempoFast %Slow %
2022 224 16.3 33.9% 2.7% 238 26.3 0.4% 27.3%
2023 732 13.8 69.4% 0.4% 443 20.8 5.6% 0.2%
2024 798 14.3 60.5% 0.4% 414 19.8 2.9% 2.4%
2025 754 17.6 14.7% 0.8% 434 19.9 0.2% 0.7%

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Pitch Distribution