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| Name | Team | Age |
| William Serrano | Retired (1987, Age 34) | 60 |
| Drafted | Position | Bats/Throws |
| Round 1, Pick 7 (1978) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Ashburn Crawford League | 0 | 9 years (79 games) |
| Total Rating
|
Arm | Range |
| Contact vs R | Contact vs L | Speed |
| Power vs R | Power vs L | Bunting |
| Endurance | Velocity | Control |
| Leadership
|
Mentor Value
|
|
| Health
|
Injured Days
|
Birthday |
| 0 | 6/20/1953 | |
| WS Rings | WS Appearances | LCS Appearances |
| 1 | 1 | 4 |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Energy | Improvements | Past Skills | Awards | Batting | Fielding | Game Log
| Year
|
Team | W | L | G | GS | CG | SHO | SV | BS | IP | H | R | ER | HBP | BB | SO | WHIP | ERA |
| 1978 | COL | 4 | 4 | 32 | 0 | 0 | 0 | 0 | 1 | 65.0 | 55 | 26 | 23 | 1 | 25 | 61 | 1.23 | 3.18 |
| 1979 | COL | 6 | 3 | 29 | 13 | 1 | 1 | 0 | 2 | 94.0 | 77 | 35 | 33 | 3 | 40 | 79 | 1.24 | 3.16 |
| 1980 | COL | 14 | 6 | 54 | 0 | 0 | 0 | 0 | 6 | 88.0 | 90 | 42 | 38 | 1 | 35 | 79 | 1.42 | 3.89 |
| 1981 | COL | 5 | 5 | 39 | 0 | 0 | 0 | 6 | 4 | 77.2 | 84 | 32 | 31 | 0 | 21 | 69 | 1.35 | 3.59 |
| 1982 | COL | 6 | 5 | 35 | 1 | 0 | 0 | 2 | 1 | 85.1 | 71 | 29 | 22 | 1 | 16 | 72 | 1.02 | 2.32 |
| 1983 | COL-MIN | 11 | 6 | 43 | 0 | 0 | 0 | 9 | 4 | 76.0 | 53 | 23 | 21 | 2 | 38 | 81 | 1.20 | 2.49 |
| 1984 | MIN | 4 | 3 | 42 | 0 | 0 | 0 | 12 | 3 | 61.2 | 52 | 27 | 22 | 1 | 27 | 59 | 1.28 | 3.21 |
| 1985 | MIN | 5 | 3 | 34 | 0 | 0 | 0 | 9 | 1 | 46.1 | 48 | 25 | 25 | 1 | 22 | 45 | 1.51 | 4.86 |
| 1986 | MIN | 5 | 1 | 40 | 0 | 0 | 0 | 2 | 0 | 54.1 | 39 | 21 | 21 | 1 | 27 | 50 | 1.21 | 3.48 |
| 1987 | MIN | 2 | 1 | 60 | 0 | 0 | 0 | 1 | 0 | 69.0 | 73 | 50 | 48 | 2 | 30 | 52 | 1.49 | 6.26 |
| 2014 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | |
| Total | 62 | 37 | 408 | 14 | 1 | 1 | 41 | 22 | 717.1 | 642 | 310 | 284 | 13 | 281 | 647 | 1.29 | 3.56 |
| Date | Transaction |
| 1987-11-01 | William Serrano has retired from the Minnesota Fans |
| 1986-07-17 | William Serrano of the Minnesota Fans is injured and is expected to be out 50 days. |
| 1986-05-14 | William Serrano of the Minnesota Fans is injured and is expected to be out 15 days. |
| 1986-04-03 | William Serrano has been reverted to his original name. |
| 1985-06-18 | Flaco Serrano of the Minnesota Golden Gophers is injured and is expected to be out 32 days. |
| 1983-04-08 | Trade #1636658 has been completed between the Minnesota Golden Gophers and the Colorado Stoners. The Colorado Stoners receive Dazed Wilkins, Gator Wilkerson (Optioned) from the Minnesota Golden Gophers in exchange for Flaco Serrano. |
| 1983-04-01 | The Colorado Stoners have placed Flaco Serrano on the trade block. |
| 1982-08-30 | Flaco Serrano of the Colorado Stoners is injured and is expected to be out 23 days. |
| 1980-04-09 | The Colorado Stoners have promoted Flaco Serrano to the major league team. The Colorado Stoners have designated Kikuji Kono for assignment. |
| 1980-04-09 | The Colorado Stoners have demoted Flaco Serrano to the minor leagues. |
| 1978-08-10 | The Colorado Stoners have promoted Flaco Serrano to the major league team. The Colorado Stoners have designated Daisuke Yoshida for assignment. |
| 1978-08-10 | The Colorado Stoners have demoted Flaco Serrano to the minor leagues. |
| 1978-04-01 | The Colorado Stoners have promoted Flaco Serrano to the major league team. The Colorado Stoners have promoted Eugenio Ramirez to the major league team. The Colorado Stoners have sent Butts Devereaux to the minors. The Colorado Stoners have sent Mutt Gilks to the minors. |
| 1978-04-01 | The Colorado Stoners have renamed William Serrano to Flaco Serrano. |