Christian Koss
#50 SS · B/T: R/R · 6' 1", 185 lb · Age 28 · Riverside, CA, USA · MLB debut 2025 · Draft: 2019 Rd 12 #369 (COL) — University of California - Irvine · San Francisco Giants
Career Graph
Batting
| Season | Team | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | BB% | K% | AVG | OBP | SLG | OPS | wOBA | wRC+ | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | SF | 76 | 191 | 174 | 25 | 46 | 9 | 0 | 3 | 23 | 4 | 9 | 45 | 4.7% | 23.6% | .264 | .309 | .368 | .677 | .297 | 91 | 0.5 |
| 2026 | SF |
71
|
221
|
203
|
27
|
44
|
6
|
0
|
4
|
12
|
5
|
9
|
59
|
4.1%
|
26.7%
|
.217
|
.257
|
.305
|
.562
|
.251
|
58
|
0.0
|
| Career | 147 | 412 | 377 | 52 | 90 | 15 | 0 | 7 | 35 | 9 | 18 | 104 | 4.4% | 25.2% | .239 | .281 | .334 | .615 | — | — | 0.5 |
| Season | Team | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | BB% | K% | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Triple-A (AAA) | |||||||||||||||||||
| 2023 | WOR | 34 | 124 | 114 | 13 | 27 | 8 | 1 | 1 | 10 | 2 | 5 | 26 | 4.0% | 21.0% | .237 | .285 | .351 | .636 |
| 2024 | SAC | 54 | 197 | 171 | 32 | 44 | 10 | 1 | 5 | 19 | 5 | 14 | 45 | 7.1% | 22.8% | .257 | .332 | .415 | .747 |
| 2025 | SAC | 6 | 27 | 27 | 3 | 8 | 2 | 0 | 1 | 5 | 0 | 0 | 6 | 0.0% | 22.2% | .296 | .296 | .481 | .777 |
| 2026 | SAC | 3 | 10 | 9 | 4 | 4 | 0 | 0 | 1 | 3 | 1 | 0 | 1 | 0.0% | 10.0% | .444 | .500 | .778 | 1.278 |
| AAA Total | 97 | 358 | 321 | 52 | 83 | 20 | 2 | 8 | 37 | 8 | 19 | 78 | 5.3% | 21.8% | .259 | .317 | .408 | .725 | |
| Double-A (AA) | |||||||||||||||||||
| 2022 | POR | 125 | 532 | 488 | 69 | 127 | 22 | 5 | 17 | 84 | 16 | 25 | 137 | 4.7% | 25.8% | .260 | .309 | .430 | .739 |
| 2023 | POR | 38 | 147 | 134 | 18 | 30 | 7 | 1 | 2 | 10 | 11 | 10 | 33 | 6.8% | 22.4% | .224 | .283 | .336 | .619 |
| 2024 | RIC | 25 | 96 | 83 | 16 | 32 | 12 | 1 | 2 | 21 | 6 | 10 | 12 | 10.4% | 12.5% | .386 | .453 | .627 | 1.080 |
| AA Total | 188 | 775 | 705 | 103 | 189 | 41 | 7 | 21 | 115 | 33 | 45 | 182 | 5.8% | 23.5% | .268 | .322 | .435 | .757 | |
| High-A (A+) | |||||||||||||||||||
| 2021 | GVL | 104 | 468 | 428 | 65 | 116 | 18 | 7 | 15 | 55 | 10 | 31 | 100 | 6.6% | 21.4% | .271 | .325 | .451 | .776 |
| A+ Total | 104 | 468 | 428 | 65 | 116 | 18 | 7 | 15 | 55 | 10 | 31 | 100 | 6.6% | 21.4% | .271 | .325 | .451 | .776 | |
| Rookie (Rk) | |||||||||||||||||||
| 2023 | F-RSX | 7 | 25 | 24 | 4 | 7 | 1 | 0 | 1 | 3 | 2 | 1 | 6 | 4.0% | 24.0% | .292 | .320 | .458 | .778 |
| 2024 | A-GIA | 9 | 31 | 24 | 5 | 7 | 2 | 0 | 2 | 7 | 2 | 6 | 2 | 19.4% | 6.5% | .292 | .419 | .625 | 1.044 |
| 2025 | A-GIA | 1 | 3 | 3 | 2 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.0% | 0.0% | .667 | .667 | .667 | 1.334 |
| 2026 | A-GIA | 5 | 19 | 18 | 5 | 7 | 0 | 0 | 1 | 7 | 1 | 1 | 2 | 5.3% | 10.5% | .389 | .421 | .556 | .977 |
| Rk Total | 22 | 78 | 69 | 16 | 23 | 3 | 0 | 4 | 18 | 5 | 8 | 10 | 10.3% | 12.8% | .333 | .397 | .551 | .948 | |
| Minors Total | 411 | 1679 | 1523 | 236 | 411 | 82 | 16 | 48 | 225 | 56 | 103 | 370 | 6.1% | 22.0% | .270 | .325 | .439 | .764 | |
Pitching
| Season | Team | W | L | SV | BS | G | GS | QS | IP | IP/G | SO | K/9 | BB/9 | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | SF | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4.0 | 1.0 | 0 | 0.0 | 0.0 | 0.00 | 3.14 | 0.0 |
| 2026 | SF | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2.0 | 1.0 | 0 | 0.0 | 0.0 | 13.50 | 3.10 | 0.0 |
| Career | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 6.0 | 1.0 | 0 | 0.0 | 0.0 | 4.50 | — | 0.0 |
Fielding
| Season | Team | Pos | G | Inn | PO | A | E | FPCT |
|---|---|---|---|---|---|---|---|---|
| 2026 | SF | 2B | 5 | 30.0 | 3 | 6 | 0 | 1.000 |
| 2026 | SF | SS | 41 | 346.2 | 53 | 95 | 7 | .955 |
| 2026 | SF | P | 2 | 2.0 | 0 | 0 | 0 | .000 |
| 2026 | SF | DH | 1 | 0.0 | 0 | 0 | 0 | .000 |
| 2026 | SF |
3B
|
20
|
157.1
|
20
|
36
|
0
|
1.000
|
| Career | 2B | 5 | 30.0 | 3 | 6 | 0 | 1.000 |
| Season | Team | Pos | G | Inn | PO | A | E | FPCT |
|---|---|---|---|---|---|---|---|---|
| Triple-A (AAA) | ||||||||
| 2023 | WOR | LF | 2 | 8.0 | 1 | 0 | 0 | 1.000 |
| 2023 | WOR | RF | 4 | 36.0 | 2 | 0 | 1 | .667 |
| 2023 | WOR | 2B | 3 | 27.0 | 8 | 9 | 2 | .895 |
| 2023 | WOR | SS | 20 | 160.0 | 26 | 54 | 4 | .952 |
| 2023 | WOR | 3B | 6 | 45.2 | 3 | 8 | 2 | .846 |
| 2024 | SAC | 2B | 3 | 24.2 | 4 | 5 | 0 | 1.000 |
| 2024 | SAC | 3B | 1 | 9.0 | 0 | 2 | 0 | 1.000 |
| 2024 | SAC | SS | 46 | 396.1 | 61 | 130 | 7 | .965 |
| 2024 | SAC | LF | 1 | 9.0 | 0 | 0 | 0 | .000 |
| 2024 | SAC | CF | 1 | 8.0 | 0 | 0 | 0 | .000 |
| 2025 | SAC | 2B | 1 | 8.0 | 6 | 5 | 0 | 1.000 |
| 2025 | SAC | SS | 2 | 16.0 | 1 | 8 | 0 | 1.000 |
| 2025 | SAC | 3B | 1 | 8.0 | 1 | 1 | 1 | .667 |
| 2025 | SAC | DH | 2 | 0.0 | 0 | 0 | 0 | .000 |
| 2026 | SAC | SS | 3 | 22.0 | 5 | 6 | 0 | 1.000 |
| AAA Total | — | 96 | 777.2 | 118 | 228 | 17 | .953 | |
| Double-A (AA) | ||||||||
| 2022 | POR | LF | 1 | 9.0 | 1 | 1 | 0 | 1.000 |
| 2022 | POR | CF | 5 | 37.0 | 10 | 0 | 0 | 1.000 |
| 2022 | POR | 3B | 23 | 185.0 | 12 | 40 | 3 | .945 |
| 2022 | POR | SS | 69 | 601.2 | 97 | 172 | 18 | .937 |
| 2022 | POR | 2B | 27 | 214.1 | 49 | 66 | 3 | .975 |
| 2022 | POR | DH | 4 | 0.0 | 0 | 0 | 0 | .000 |
| 2023 | POR | 2B | 2 | 15.0 | 6 | 4 | 0 | 1.000 |
| 2023 | POR | 3B | 1 | 10.0 | 2 | 1 | 0 | 1.000 |
| 2023 | POR | LF | 1 | 7.0 | 2 | 0 | 0 | 1.000 |
| 2023 | POR | SS | 32 | 281.1 | 42 | 77 | 1 | .992 |
| 2023 | POR | DH | 2 | 0.0 | 0 | 0 | 0 | .000 |
| 2024 | RIC | SS | 22 | 187.0 | 43 | 44 | 3 | .967 |
| 2024 | RIC | 2B | 2 | 16.0 | 0 | 5 | 1 | .833 |
| 2024 | RIC | DH | 1 | 0.0 | 0 | 0 | 0 | .000 |
| AA Total | — | 192 | 1563.1 | 264 | 410 | 29 | .959 | |
| High-A (A+) | ||||||||
| 2021 | GVL | 2B | 7 | 64.0 | 13 | 21 | 0 | 1.000 |
| 2021 | GVL | SS | 97 | 842.1 | 141 | 230 | 15 | .961 |
| A+ Total | — | 104 | 906.1 | 154 | 251 | 15 | .964 | |
| Rookie (Rk) | ||||||||
| 2023 | F-RSX | 2B | 4 | 31.0 | 9 | 9 | 0 | 1.000 |
| 2023 | F-RSX | SS | 3 | 21.0 | 10 | 9 | 0 | 1.000 |
| 2024 | A-GIA | 2B | 2 | 9.0 | 1 | 1 | 0 | 1.000 |
| 2024 | A-GIA | 3B | 2 | 14.0 | 5 | 2 | 0 | 1.000 |
| 2024 | A-GIA | SS | 3 | 19.1 | 3 | 8 | 0 | 1.000 |
| 2024 | A-GIA | DH | 2 | 0.0 | 0 | 0 | 0 | .000 |
| 2025 | A-GIA | 2B | 1 | 4.0 | 1 | 0 | 0 | 1.000 |
| 2026 | A-GIA | SS | 4 | 29.0 | 1 | 9 | 0 | 1.000 |
| 2026 | A-GIA | DH | 1 | 0.0 | 0 | 0 | 0 | .000 |
| Rk Total | — | 22 | 127.1 | 30 | 38 | 0 | 1.000 | |
| Minors Total | — | 414 | 3374.2 | 566 | 927 | 61 | .961 | |
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