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data as of 20 Aug, 11:01 AM ET

Koss, Christian

Fast and flat Bat speed 67.1mph -2.1 Swing length 6.92ft -0.25 Attack angle 7.7° -1.2 Swing tilt 28.2° -4
Swing & contact · last 30 games vs last 100 2 metrics moved Barrel rate 4.6% +7.7% Bat speed 66.8 mph -0.5% Exit velo 82.1 mph -2.5% Chase rate 43.2% +15.8%
applies to every section below
Tonight vs Williams, Gavin RHP · Progressive Field Home Run5% Hit52% 2+ Total Bases25% Walk17% pitch matchup →
Pitch Mix Analysis → All players →
Trailing stats run through his last game, 2026-08-19 (yesterday).
Percentile Rankings 2026-04-11 to 2026-08-19 · 394 qualified players
POOR AVERAGE GREAT
xwOBA 22 0.296
xBA 32 0.287
xSLG 21 0.398
Avg Exit Velo 11 82.6
Barrel % 42 6.3
Hard-Hit % 12 31.7
Bat Speed 19 66.9
Chase % 9 42.1
K % 40 24.1
BB % 5 2.3
Hits Spray Chart 17 hits · 30 games · 2026-04-11 to 2026-08-19
Single 13 Double 4 Triple 0 Home Run 0
200 300 400

Hover or tap any hit for how it was struck — distance, exit velocity, launch angle, the pitch, and what that batted ball was expected to be worth.

At-Bat Log 87 PA · 30 games · 2026-04-11 to 2026-08-19
17 hits 2 walks 1 hit by pitch 23 strikeouts 44 outs in play avg exit velo 84.9 mph over 59 tracked xwOBA 0.235
Date Result Count Pitch Velo Exit Velo Angle Dist Location xBA xSLG xwOBA Pitcher
2026-08-19 Strikeout swinging 1-2 SL 88.6 0.000 Gaddis, Hunter
2026-08-19 Out ground ball 0-0 FF 93.0 87.4 -6° 23 Infield 0.187 0.214 0.168 Messick, Parker
2026-08-19 Strikeout swinging 0-2 FF 96.0 0.000 Messick, Parker
2026-08-18 Double fly ball 1-1 ST 84.0 100.6 32° 397 LF gap 0.463 1.750 0.909 Festa, Matt
2026-08-18 Strikeout swinging 1-2 CH 81.9 0.000 Griffin, Foster
2026-08-18 Out ground ball 1-2 CH 82.9 Infield Griffin, Foster
2026-08-16 Single ground ball 0-0 SI 93.1 100.5 -6° 17 Infield 0.344 0.361 0.310 Agnos, Zach
2026-08-16 Strikeout swinging 0-2 CH 83.2 0.000 Frasso, Nick
2026-08-16 Out ground ball 2-1 SL 85.9 RF corner Hughes, Gabriel
2026-08-16 Strikeout swinging 2-2 FF 93.6 0.000 Hughes, Gabriel
2026-08-15 Single line drive 1-0 FF 90.7 103.4 10° 188 RF 0.849 1.018 0.812 Gordon, Tanner
2026-08-15 Strikeout swinging 0-2 SL 85.5 0.000 Gordon, Tanner
2026-08-15 Force Out ground ball 1-0 SI 92.9 62.8 -50° 2 Infield 0.304 0.310 0.282 Lorenzen, Michael
2026-08-15 Strikeout looking 0-2 CH 83.0 0.000 Lorenzen, Michael
2026-08-14 Out ground ball 0-2 SI 89.9 88.5 59 Infield 0.344 0.367 0.310 Freeland, Kyle
2026-08-14 Grounded Into DP ground ball 1-2 FF 91.0 96.5 50 Infield 0.478 0.515 0.433 Freeland, Kyle
2026-08-14 Double line drive 0-1 FC 86.8 90.2 22° 319 LF gap 0.194 0.281 0.187 Freeland, Kyle
2026-08-12 Out fly ball 1-0 SI 92.6 98.7 31° 356 LF 0.371 1.364 0.717 Hader, Josh
2026-08-12 Single line drive 0-0 FF 95.1 71.1 21° 199 CF 0.971 1.033 0.887 Blubaugh, AJ
2026-08-12 Strikeout looking 1-2 FF 93.3 0.000 Imai, Tatsuya
2026-08-12 Single line drive 0-1 SL 85.4 98.4 13° 226 LF 0.940 1.126 0.897 Imai, Tatsuya
2026-08-11 Out fly ball 2-1 FF 96.5 100.8 23° 384 CF 0.549 1.355 0.794 Blubaugh, AJ
2026-08-11 Double line drive 0-1 FF 94.8 101.3 22° 343 LF 0.477 1.142 0.675 De Los Santos, Enyel
2026-08-11 Reached On Error ground ball 0-1 FF 97.4 64.8 -25° 6 Infield 0.056 0.059 0.050 Brown, Hunter
2026-08-11 Strikeout swinging 3-2 KC 84.4 0.000 Brown, Hunter
2026-08-10 Out ground ball 0-1 SI 94.8 93.9 58 Infield 0.429 0.548 0.431 Hader, Josh
2026-08-10 Out fly ball 0-0 ST 80.5 75.9 48° 204 RF 0.089 0.125 0.094 Wesneski, Hayden
2026-08-10 Out ground ball 0-1 ST 80.3 59.8 -2° 22 Infield 0.081 0.087 0.073 Wesneski, Hayden
2026-08-10 Single line drive 0-1 ST 80.5 87.9 16° 223 RF gap 0.977 1.093 0.905 Wesneski, Hayden
2026-08-09 Strikeout looking 0-2 FC 87.6 0.000 Holton, Tyler
2026-08-09 Single line drive 2-1 SI 95.6 96.3 10° 193 RF gap 0.697 0.794 0.648 Sommers, Drew
2026-08-09 Out ground ball 1-2 SL 89.8 57.4 40 Infield 0.133 0.160 0.121 Melton, Troy
2026-08-09 Out fly ball 1-1 FC 93.4 93.7 39° 326 RF gap 0.060 0.165 0.093 Melton, Troy
2026-08-08 Out ground ball 1-2 SL 83.8 108.7 -19° 4 Infield 0.146 0.163 0.131 Madden, Ty
2026-08-08 Out fly ball 1-2 FF 92.2 88.5 50° 252 RF 0.006 0.010 0.006 Holton, Tyler
2026-08-08 Strikeout looking 2-2 CU 82.2 0.000 Jobe, Jackson
2026-08-07 Out line drive 1-2 FF 94.8 102.6 132 Infield 0.649 0.732 0.603 Montero, Keider
2026-08-07 Strikeout looking 1-2 FF 94.5 0.000 Montero, Keider
2026-08-07 Strikeout swinging 2-2 FF 96.9 0.000 Montero, Keider
2026-08-04 Out fly ball 1-2 FF 95.2 74.0 53° 197 LF gap 0.109 0.135 0.105 Gore, MacKenzie
2026-08-04 Out ground ball 1-0 FF 95.8 56.7 -16° 7 Infield 0.078 0.084 0.070 Gore, MacKenzie
2026-08-03 Single ground ball 0-1 SI 94.6 92.1 -7° 16 Infield 0.226 0.246 0.203 Kingham, Nolan
2026-08-03 Strikeout swinging 3-2 FF 95.5 0.000 Peoples, Ben
2026-08-03 Out line drive 0-1 SI 92.2 92.5 17° 280 LF gap 0.714 0.884 0.683 Quantrill, Cal
2026-08-03 Strikeout looking 2-2 SI 93.7 0.000 Quantrill, Cal
2026-08-02 Strikeout swinging 2-2 CH 92.6 0.000 Morejon, Adrian
2026-08-01 Strikeout swinging 3-2 CH 91.3 0.000 Peralta, Wandy
2026-08-01 Grounded Into DP ground ball 0-0 SI 95.7 98.3 -18° 5 Infield 0.163 0.172 0.149 Buehler, Walker
2026-08-01 Out popup 0-0 SI 94.8 57.8 51° 156 Infield 0.026 0.026 0.023 Buehler, Walker
2026-07-31 Out popup 1-0 SI 92.1 60.3 83° 45 RF corner 0.003 0.003 0.003 Márquez, Germán
2026-07-31 Out ground ball 1-0 SL 86.2 71.0 -39° 3 Infield 0.136 0.145 0.127 Márquez, Germán
2026-07-31 Single ground ball 0-1 SL 86.1 97.7 83 LF 0.500 0.548 0.460 Matsui, Yuki
2026-07-30 Out line drive 1-0 SI 94.1 107.1 19° 388 CF 0.646 1.469 0.884 Vásquez, Randy
2026-07-30 Out ground ball 0-1 SI 94.9 91.6 -24° 5 Infield 0.104 0.113 0.101 Vásquez, Randy
2026-07-30 Single line drive 0-0 CH 85.7 98.2 10° 179 RF 0.740 0.895 0.721 Sears, JP
2026-07-30 Strikeout swinging 1-2 SL 81.9 0.000 Sears, JP
2026-07-29 Force Out ground ball 1-1 FA 48.0 80.6 101 Infield 0.360 0.397 0.360
2026-07-29 Single ground ball 0-0 FC 88.7 83.0 45 LF gap 0.282 0.344 0.269 Wilson, Bryse
2026-07-29 Single ground ball 0-0 SI 98.3 103.6 -22° 4 LF gap 0.187 0.199 0.168 Ashby, Aaron
2026-07-29 Out fly ball 1-1 FC 89.5 79.5 30° 290 LF gap 0.143 0.215 0.154 Patrick, Chad
2026-07-29 Out fly ball 1-2 FF 91.0 83.6 32° 310 LF 0.023 0.040 0.025 Pannone, Thomas
2026-07-28 Strikeout swinging 0-2 FF 93.0 0.000 Anderson, Grant
2026-07-28 Strikeout swinging 1-2 FF 92.4 0.000 Henderson, Logan
2026-07-28 Out popup 1-0 FF 90.4 50.7 50° 124 Infield 0.014 0.014 0.013 Henderson, Logan
2026-07-27 Force Out ground ball 2-2 FC 88.1 90.1 -21° 6 Infield 0.115 0.130 0.111 Stallings, Garrett
2026-07-27 Strikeout looking 0-2 ST 84.0 0.000 Sproat, Brandon
2026-07-27 Walk 3-0 FF 96.4 0.698 Sproat, Brandon
2026-07-21 Out popup 3-2 SI 92.0 70.6 62° 135 Infield 0.001 0.001 0.000 Strahm, Matt
2026-07-21 Single line drive 1-0 SI 95.9 79.0 21° 272 CF 0.940 1.023 0.865 Avila, Luinder
2026-07-21 Walk 3-1 SI 96.7 0.698 Avila, Luinder
2026-07-03 Out fly ball 1-1 ST 85.0 89.7 47° 268 CF 0.003 0.005 0.003 Hughes, Gabriel
2026-07-01 Out fly ball 1-2 ST 88.3 71.9 37° 228 RF 0.460 0.516 0.429 Garcia, Brandyn
2026-07-01 Out ground ball 0-1 SI 89.9 87.0 -20° 5 Infield 0.081 0.090 0.080 Thompson, Ryan
2026-07-01 Force Out ground ball 3-2 KC 81.9 83.2 -32° 3 LF corner 0.066 0.075 0.063 Gallen, Zac
2026-07-01 Single ground ball 0-1 SI 93.2 107.6 144 LF gap 0.623 0.727 0.584 Gallen, Zac
2026-05-10 Force Out ground ball 1-2 SI 96.6 36.6 -28° 5 Infield 0.376 0.379 0.340 Ramírez, Yohan
2026-05-09 Hit By Pitch 1-1 FF 95.0 0.729 Sanders, Cam
2026-05-05 Strikeout swinging 0-2 FF 92.5 0.000 Marinaccio, Ron
2026-04-26 Out ground ball 0-0 SI 96.5 84.9 -6° 21 Infield 0.150 0.187 0.135 Bender, Anthony
2026-04-26 Force Out ground ball 0-2 ST 87.5 87.8 -22° 6 Infield 0.101 0.113 0.091 Faucher, Calvin
2026-04-26 Strikeout swinging 0-2 ST 89.6 0.000 Meyer, Max
2026-04-26 Out fly ball 0-1 FF 95.6 81.4 34° 280 RF 0.037 0.066 0.042 Meyer, Max
2026-04-24 Out fly ball 1-0 SI 90.8 86.9 49° 242 RF 0.006 0.009 0.005 King, John
2026-04-12 Out fly ball 0-0 FF 93.4 93.3 53° 233 CF 0.006 0.011 0.007 Wells, Tyler
2026-04-12 Out fly ball 2-0 FF 90.9 90.7 55° 235 RF 0.009 0.010 0.008 Povich, Cade
2026-04-12 Out popup 2-1 FF 91.2 84.6 64° 167 RF 0.006 0.006 0.005 Povich, Cade
2026-04-11 Double ground ball 0-1 SI 95.4 77.0 -21° 6 LF 0.058 0.073 0.059 Nunez, Anthony
game_date: 2026-08-20 ballpark: Progressive Field batter_team: sfn stand: R pitcher: gaddis, hunter pitcher_team: cle
Choose stats & windows — 56 of 56 metrics, 11 of 11 windows
Metrics
Trailing windows (games)
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stat 1g2g3g5g7g10g15g20g30g50g100g
ab_game 3.000 6.000 10.000 17.000 25.000 36.000 49.000 67.000 87.000 154.000 281.000
air_ball_rate · · · · · 0.520 0.500 0.444 0.443 0.441 0.439
appearances 1.000 2.000 3.000 5.000 7.000 10.000 15.000 20.000 30.000 50.000 91.000
ba 0.000 0.167 0.200 0.235 0.280 0.250 0.204 0.212 0.202 0.223 ·
babip 0.000 0.333 0.400 0.400 0.438 0.360 0.312 0.311 0.279 0.297 0.308
babip_den 1.000 3.000 5.000 10.000 16.000 25.000 32.000 45.000 61.000 111.000 195.000
babip_num 0.000 1.000 2.000 4.000 7.000 9.000 10.000 14.000 17.000 33.000 60.000
barrel 0.000 1.000 1.000 1.000 3.000 3.000 3.000 4.000 4.000 7.000 12.000
barrel_per_ab 0.000 0.167 0.100 0.059 0.120 0.083 0.061 0.060 0.046 0.045 0.043
bat_speed 65.900 68.947 66.600 67.532 67.094 66.681 66.635 66.367 66.820 66.745 67.132
bip_per_pa 0.333 0.500 0.500 0.588 0.640 0.694 0.653 0.672 0.701 0.721 0.705
blast 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
blast_per_ab 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
chase 3.000 8.000 12.000 17.000 21.000 29.000 43.000 53.000 63.000 97.000 164.000
chase_rate 0.750 0.667 0.600 0.607 0.538 0.509 0.478 0.457 0.432 0.411 0.373
contact 3.000 6.000 10.000 17.000 25.000 36.000 49.000 67.000 87.000 154.000 281.000
estimated_ba_using_speedangle 0.187 0.217 0.199 0.316 0.408 0.366 0.347 0.319 0.283 0.301 0.324
estimated_ba_using_speedangle_sum 0.187 0.650 0.994 3.163 6.527 9.145 11.110 14.363 17.286 33.395 64.066
estimated_slg_using_speedangle 0.214 0.655 0.465 0.482 0.681 0.562 0.510 0.463 0.395 0.433 0.481
estimated_woba_using_speedangle 0.168 0.359 0.277 0.341 0.464 0.397 0.368 0.337 0.293 0.317 0.348
estimated_woba_using_speedangle_sum 0.214 1.964 2.325 4.816 10.895 14.040 16.319 20.831 24.122 48.051 95.272
ev_max 87.400 94.000 96.167 97.680 98.343 98.730 95.353 94.635 91.386 93.596 94.805
fly_ball 0.000 1.000 1.000 1.000 3.000 6.000 7.000 9.000 15.000 26.000 42.000
ground_ball 1.000 2.000 4.000 7.000 8.000 12.000 15.000 22.000 29.000 56.000 99.000
hard_hit 0.000 1.000 2.000 4.000 8.000 10.000 12.000 17.000 18.000 35.000 71.000
hh_ab 0.000 0.167 0.200 0.235 0.320 0.278 0.245 0.254 0.207 0.227 0.253
hit 0.000 1.000 2.000 4.000 7.000 9.000 10.000 14.000 17.000 33.000 63.000
hit_distance 23.000 140.000 87.400 105.500 160.562 155.640 146.375 139.267 139.623 141.622 142.783
hr 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 3.000
hr_per_fb · · · · · · · · 0.000 0.000 0.034
hr_platoon · · · · · · · 0.000 0.000 1.000 3.000
hr_rate 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.011
iso 0.000 0.167 0.100 0.118 0.120 0.083 0.061 0.045 0.048 0.061 ·
la_contact 1.000 3.000 5.000 10.000 16.000 25.000 32.000 45.000 61.000 111.000 198.000
launch_speed 87.400 62.667 57.700 72.990 79.063 81.084 81.284 82.180 82.136 83.418 84.199
launch_speed_angle_sum -6.000 8.667 4.000 0.300 5.500 9.440 10.062 10.067 12.328 6.054 6.813
launch_speed_sum 160.300 480.700 875.400 1561.200 2409.000 3556.400 4708.400 6270.900 8280.200 14930.100 26795.300
line_drive 0.000 0.000 0.000 2.000 5.000 7.000 9.000 11.000 12.000 23.000 45.000
out_of_zone 4.000 12.000 20.000 28.000 39.000 57.000 90.000 116.000 146.000 236.000 440.000
pull 1.000 1.000 2.000 4.000 8.000 9.000 15.000 23.000 30.000 46.000 84.000
slg 0.000 0.333 0.300 0.353 0.400 0.333 0.265 0.258 0.250 0.284 ·
slug_window_ab 0.000 0.167 0.100 0.059 0.160 0.111 0.082 0.075 0.057 0.078 0.078
square_per_ab 0.333 0.333 0.300 0.353 0.400 0.417 0.388 0.358 0.322 0.364 0.384
squared_up 1.000 2.000 3.000 6.000 12.000 17.000 21.000 28.000 32.000 68.000 136.000
strikeout 2.000 3.000 5.000 7.000 9.000 11.000 17.000 21.000 23.000 37.000 68.000
strikeout_rate 0.667 0.500 0.500 0.412 0.360 0.306 0.347 0.313 0.264 0.240 0.242
sweet_spot 0.000 2.000 2.000 4.000 10.000 15.000 20.000 25.000 29.000 54.000 97.000
sweet_spot_per_ab 0.000 0.167 0.100 0.176 0.320 0.278 0.224 0.224 0.184 0.221 0.224
tb 0.000 2.000 3.000 6.000 10.000 12.000 13.000 17.000 21.000 42.000 85.000
tb_platoon · · · · · · · 13.000 17.000 42.000 66.000
walk 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.000 2.000 5.000 11.000
walk_platoon · · · · · · · 2.000 4.000 5.000 9.000
walk_rate 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.015 0.023 0.032 0.039
xbh 0.000 1.000 1.000 2.000 3.000 3.000 3.000 3.000 4.000 9.000 16.000
xbh_rate 0.000 0.167 0.100 0.118 0.120 0.083 0.061 0.045 0.046 0.058 0.057
z_swing_rate · · · · · 0.793 0.779 0.772 0.770 0.759 0.732
zone_rate · · · · · · 0.461 0.465 0.480 0.521 0.528