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Christian Koss

#50 - 2B/DH/SS

San Francisco Giants

Bats / Throws Right / Right
Date of Birth 1/27/1998 (28)
Height, Weight 6'1", 185 lb
Hometown Riverside, CA

2026 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
PA R HR RBI SB AVG wOBA
15 1 0 0 0 .071 .134
352nd 193
PA
352nd 23
R
337th 6
HR
352nd 22
RBI
273rd 4
SB
352nd .241
AVG
352nd .315
wOBA
K% BB% IPA% HC% xAVG xwOBA
13.3% 0.0% 6.7% 13.3% .080 .118
32nd -
K%
352nd -
BB%
352nd -
IPA%
352nd -
HC%
352nd -
xAVG
352nd -
xwOBA

Articles

5/10/2026Fantasy Baseball Relief Pitcher Roundup: 5/9Rick Graham

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9/25/2025The PLV Power Report: Reviewing This Year's RookiesRyan Amore

8/19/2025MLB News & Moments You Should Know: 8/19/2025Steve Drumwright

5/14/2025MLB News & Moments You Should Know: 5/14/2025Pablo Figueroa

See More Articles
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Christian Koss Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G PA R HR RBI SB AVG OBP SLG wOBA xwOBA Z-Con% K% BB% HR/FB% BABIP Brl% ICR IPA%
2025 SF 74 191 25 3 23 4 .264 .309 .368 .297 .311 73.0% 23.6% 4.7% 10.0% .336 6.0% 36.6% 25.7%
2026 SF 9 15 1 0 0 0 .071 .133 .143 .134 .118 87.5% 13.3% 0.0% 0.0% .083 0.0% 8.3% 6.7%
MLB Percentile 0 0 0 0 0 0 0 0 0 0 0 70 91 0 0 0 0 0 0
MLB AVG 51 193 23 6 22 4 .241 .317 .391 .315 .321 84.7% 22.0% 9.1% 17.5% .288 7.7% 38.1% 25.7%
Career 83 206 26 3 23 4 .250 .296 .351 .289 .302 73.9% 22.8% 4.4% 9.4% .314 5.5% 34.2% 24.3%

Christian Koss Game Log

Christian Koss Standard

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team 1B 2B 3B HR SB CS K BB HBP H TB HC Brl
2025 SF 34 9 0 3 4 1 45 9 3 46 76 45 8
2026 SF 0 1 0 0 0 0 2 0 1 1 3 2 0
MLB Percentile 0 1 0 0 0 0 100 0 23 0 0 0 0
MLB AVG 27 8 1 6 4 1 42 18 2 42 89 52 10
Career 34 10 0 3 4 1 47 9 4 47 79 47 8

Christian Koss Advanced

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team K% BB% AVG OBP SLG wOBA ISO BABIP xAVG xSLG xwOBA xBABIP xwoBACON Max EV FB EV LA
2025 SF 23.6% 4.7% .264 .309 .368 .297 .104 .336 .262 .414 .311 .321 .374 108.1 88.1 4.1
2026 SF 13.3% 0.0% .071 .133 .143 .134 .072 .083 .080 .087 .118 .093 .086 100.1 84.2 19.2
MLB Percentile 91 0 0 0 0 0 7 0 0 0 0 0 0 0 11 87
MLB AVG 22.0% 9.1% .241 .317 .391 .315 .150 .288 .241 .408 .321 .284 .370 110.0 89.6 13.5
Career 22.8% 4.4% .250 .296 .351 .289 .101 .314 .248 .390 .302 .301 .356 108.1 87.8 5.3

Christian Koss Batted Ball › Contact

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR
2025 SF 50.7% 23.1% 22.4% 3.7% 34.3% 38.1% 31.3% 30.6% 16.8% 63.4% 26.1% 4.5% 6.0% 36.6%
2026 SF 41.7% 8.3% 16.7% 33.3% 8.3% 25.0% 33.3% 41.7% 15.4% 91.6% 8.3% 0.0% 0.0% 8.3%
MLB Percentile 40 0 7 0 0 2 46 99 16 0 0 0 0 0
MLB AVG 43.5% 22.1% 24.3% 10.2% 35.3% 42.0% 33.5% 24.5% 18.0% 61.7% 24.5% 6.1% 7.7% 38.1%
Career 50.0% 21.9% 21.9% 6.2% 32.2% 37.0% 31.5% 31.5% 16.7% 65.7% 24.7% 4.1% 5.5% 34.2%

Christian Koss Batted Ball › Outcomes

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR IPA%
2025 SF .264 .297 .336 .351 .262 .311 .321 .374 84.9 88.1 4.1 10.0% 36.6% 25.7%
2026 SF .071 .134 .083 .083 .080 .118 .093 .086 83.5 84.2 19.2 0.0% 8.3% 6.7%
MLB Percentile 0 0 0 0 0 0 0 0 6 11 87 0 0 0
MLB AVG .241 .315 .288 .318 .241 .321 .284 .370 88.3 89.6 13.5 17.5% 38.1% 25.7%
Career .250 .289 .314 .329 .248 .302 .301 .356 84.8 87.8 5.3 9.4% 34.2% 24.3%

Christian Koss Approach › Plate Discipline

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS%
2025 SF 51.4% 68.5% 55.0% 37.4% 31.6% 16.8% 68.4% 73.0% 59.0% 13.5% 17.4% 30.9% 20.8% 61.3%
2026 SF 56.4% 74.4% 61.5% 47.1% 25.0% 15.4% 75.0% 87.5% 50.0% 12.8% 15.4% 28.2% 30.8% 71.8%
MLB Percentile 100 100 100 1 47 16 47 70 21 86 15 47 100 100
MLB AVG 44.7% 63.7% 47.3% 31.6% 24.7% 18.0% 75.3% 84.7% 58.8% 16.4% 11.8% 28.2% 17.6% 58.2%
Career 51.7% 68.8% 55.3% 37.9% 31.2% 16.7% 68.8% 73.9% 58.4% 13.5% 17.3% 30.7% 21.4% 61.9%

Christian Koss Approach › Locations

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team Zone% iLoc% x-mLoc% oLoc% hiLoc% y-mLoc% loLoc% aLoc% gLoc% mmLoc%
2025 SF 51.4% 29.0% 26.6% 44.4% 24.1% 27.2% 48.8% 31.1% 42.4% 7.8%
2026 SF 56.4% 38.5% 38.5% 23.1% 41.0% 30.8% 28.2% 35.9% 25.6% 15.4%
MLB Percentile 100 98 100 0 88 100 0 53 1 100
MLB AVG 44.7% 29.9% 27.2% 42.9% 35.8% 22.8% 41.5% 35.2% 37.5% 6.6%
Career 51.7% 29.6% 27.2% 43.2% 25.0% 27.4% 47.6% 31.3% 41.4% 8.2%

Christian Koss Approach › Counts

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2025 SF 61.2% 8.2% 30.6% 21.3% 63.9% 45.5% 17.3% 21.3% 22.8%
2026 SF 76.9% 5.1% 17.9% 23.3% 73.3% 53.3% 16.7% 42.9% 28.6%
MLB Percentile 0 0 100 99 100 79 16 1 2
MLB AVG 58.7% 12.1% 29.5% 14.9% 60.8% 49.7% 21.2% 27.0% 19.0%
Career 62.1% 8.1% 29.9% 21.5% 64.6% 46.1% 17.2% 22.1% 23.0%

Christian Koss PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL
2025 SF 644 5.16 45.7% 19.4% 34.9% 10.7% 7.6% 6.0 +14
2026 SF 39 4.98 46.2% 23.1% 30.8% 15.4% 7.7% -2.7 -2
MLB Percentile 0 52 43 100 1 1 98 29 42
MLB AVG 752 4.98 46.5% 17.4% 36.1% 10.4% 4.7% 2.6 +1
Career 683 5.15 45.7% 19.6% 34.7% 11.0% 7.6% 3.3 +12
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