4 pitchers are tied for giving up the most walks by a rookie starting pitcher in a Wild Card Series game, with 2 allowed. The first three are Sixto Sánchez on October 2, 2020, Ian Anderson on October 1, 2020 and José Urquidy on September 30, 2020.
| NAME | BB | DATE | SEASON | SERIES | TM | OPP | DEC | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | S. Sánchez | 2 | 10/2/2020 | 2020 | NL Wild Card Series |  MIA | @ |  CHC | 1 | 0.00 | 6 | 0 | 0 | 0 | 5.0 | 4 | 0 | 0 | 0 | 2 | 0 | 0 | 22 | 0 | |
| 2 |  | I. Anderson | 2 | 10/1/2020 | 2020 | NL Wild Card Series |  ATL | vs |  CIN | W | 1 | 0.00 | 9 | 0 | 0 | 0 | 6.0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 |
| 3 |  | J. Urquidy | 2 | 9/30/2020 | 2020 | AL Wild Card Series |  HOU | @ |  MIN | 1 | 2.08 | 3 | 0 | 0 | 0 | 4.1 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 18 | 0 | |
| 4 |  | K. Kim | 2 | 9/30/2020 | 2020 | NL Wild Card Series |  STL | @ |  SDP | 1 | 7.36 | 2 | 0 | 0 | 0 | 3.2 | 5 | 3 | 3 | 0 | 0 | 0 | 0 | 18 | 0 | |
| 5 |  | B. Pfaadt | 1 | 10/3/2023 | 2023 | NL Wild Card Series |  ARI | @ |  MIL | 1 | 10.13 | 4 | 0 | 0 | 0 | 2.2 | 7 | 3 | 3 | 1 | 0 | 0 | 0 | 16 | 0 |
Results may be incomplete. StatMuse has complete game-level data for walks allowed going back to the 1903 playoffs.
Some of the information used here was obtained free of charge from Retrosheet.
Mets 
Phillies 
Nationals 
COL 
TBR 
Yankees 
Blue Jays 
Tigers 
Guardians 
Mariners 
Dodgers 
BAL 
ATH 
SFG 
PIT 
