5 players are tied for the youngest starting pitchers in a World Series. They were 20 years old. The first three are Madison Bumgarner, Fernando Valenzuela and Jim Palmer.
| NAME | AGE | SEASON | SERIES | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | M. Bumgarner | 20 | 2010 | World Series |  SFG | 1 | 1 | 0 | 1.000 | 1 | 0.00 | 6 | 0 | 0 | 0 | 8.0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 27 | 0 | 6.75 | 2.25 | 3.00 | 0.00 | 22.2 | 7.4 | 0.63 | .158 | 0.00 | 3.38 |
| 2 |  | F. Valenzuela | 20 | 1981 | World Series |  LAD | 1 | 1 | 0 | 1.000 | 1 | 4.00 | 6 | 1 | 0 | 0 | 9.0 | 9 | 4 | 4 | 2 | 7 | 0 | 0 | 2 | 40 | 0 | 6.00 | 7.00 | 0.86 | 2.00 | 15.0 | 17.5 | 1.78 | .280 | 4.00 | 9.00 |
| 3 | | J. Palmer | 20 | 1966 | World Series |  BAL | 1 | 1 | 0 | 1.000 | 1 | 0.00 | 6 | 1 | 1 | 0 | 9.0 | 4 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 34 | 1 | 6.00 | 3.00 | 2.00 | 0.00 | 17.6 | 8.8 | 0.78 | .160 | 0.00 | 4.00 |
| 4 | | J. Podres | 20 | 1953 | World Series |  BKN | 1 | 0 | 1 | .000 | 1 | 3.38 | 0 | 0 | 0 | 0 | 2.2 | 1 | 1 | 5 | 1 | 2 | 1 | 0 | 0 | 13 | 0 | 0.00 | 6.75 | 0.00 | 3.38 | 0.0 | 15.4 | 1.13 | .000 | 16.88 | 3.38 |
| 5 | | B. Joe Bush | 20 | 1913 | World Series |  PHA | 1 | 1 | 0 | 1.000 | 1 | 1.00 | 3 | 1 | 0 | 0 | 9.0 | 5 | 1 | 2 | 0 | 4 | 1 | 0 | 0 | 34 | 0 | 3.00 | 4.00 | 0.75 | 0.00 | 8.8 | 11.8 | 1.00 | .192 | 2.00 | 5.00 |
| 6 |  | T. Yesavage | 21 | 2025 | World Series |  TOR | 1 | 0 | 0 | 1 | 4.50 | 5 | 0 | 0 | 0 | 4.0 | 4 | 2 | 2 | 0 | 3 | 0 | 0 | 0 | 18 | 0 | 11.25 | 6.75 | 1.67 | 0.00 | 27.8 | 16.7 | 1.75 | .400 | 4.50 | 9.00 | |
| 7 | | J. Wright | 21 | 1997 | World Series |  CLE | 2 | 1 | 0 | 1.000 | 2 | 2.92 | 12 | 0 | 0 | 0 | 12.1 | 7 | 4 | 4 | 2 | 10 | 0 | 0 | 0 | 52 | 1 | 8.76 | 7.30 | 1.20 | 1.46 | 23.1 | 19.2 | 1.38 | .179 | 2.92 | 5.11 |
| 8 | | S. Avery | 21 | 1991 | World Series |  ATL | 2 | 0 | 0 | 2 | 3.46 | 8 | 0 | 0 | 0 | 13.0 | 10 | 5 | 6 | 1 | 1 | 0 | 0 | 0 | 51 | 0 | 5.54 | 0.69 | 8.00 | 0.69 | 15.7 | 2.0 | 0.85 | .220 | 4.15 | 6.92 | |
| 9 | | D. Gooden | 21 | 1986 | World Series |  NYM | 2 | 0 | 2 | .000 | 2 | 8.00 | 9 | 0 | 0 | 0 | 9.0 | 17 | 8 | 10 | 2 | 4 | 1 | 0 | 0 | 50 | 0 | 9.00 | 4.00 | 2.25 | 2.00 | 18.0 | 8.0 | 2.33 | .441 | 10.00 | 17.00 |
| 10 | | B. Saberhagen | 21 | 1985 | World Series |  KCR | 2 | 2 | 0 | 1.000 | 2 | 0.50 | 10 | 2 | 1 | 0 | 18.0 | 11 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 65 | 0 | 5.00 | 0.50 | 10.00 | 0.00 | 15.4 | 1.5 | 0.67 | .204 | 0.50 | 5.50 |
| 11 | | S. Davis | 21 | 1983 | World Series |  BAL | 1 | 1 | 0 | 1.000 | 1 | 5.40 | 3 | 0 | 0 | 0 | 5.0 | 6 | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 21 | 1 | 5.40 | 1.80 | 3.00 | 0.00 | 14.3 | 4.8 | 1.40 | .353 | 5.40 | 10.80 |
| 12 | | M. Bystrom | 21 | 1980 | World Series |  PHI | 1 | 0 | 0 | 1 | 5.40 | 4 | 0 | 0 | 0 | 5.0 | 10 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 26 | 0 | 7.20 | 1.80 | 4.00 | 1.80 | 15.4 | 3.8 | 2.20 | .450 | 5.40 | 18.00 | |
| 13 | | D. Gullett | 21 | 1972 | World Series |  CIN | 1 | 0 | 0 | 1 | 1.29 | 4 | 0 | 0 | 0 | 7.0 | 5 | 1 | 1 | 1 | 2 | 0 | 0 | 1 | 27 | 0 | 5.14 | 2.57 | 2.00 | 1.29 | 14.8 | 7.4 | 1.00 | .200 | 1.29 | 6.43 | |
| 14 | | W. Bunker | 21 | 1966 | World Series | BAL | 1 | 1 | 0 | 1.000 | 1 | 0.00 | 6 | 1 | 1 | 0 | 9.0 | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 33 | 0 | 6.00 | 1.00 | 6.00 | 0.00 | 18.2 | 3.0 | 0.78 | .231 | 0.00 | 6.00 |
| 15 | | B. Stafford | 21 | 1961 | World Series |  NYY | 1 | 0 | 0 | 1 | 2.70 | 5 | 0 | 0 | 0 | 6.2 | 7 | 2 | 2 | 0 | 2 | 0 | 0 | 1 | 29 | 0 | 6.75 | 2.70 | 2.50 | 0.00 | 17.2 | 6.9 | 1.35 | .318 | 2.70 | 9.45 | |
| 16 | | W. Ford | 21 | 1950 | World Series | NYY | 1 | 1 | 0 | 1.000 | 1 | 0.00 | 7 | 0 | 0 | 0 | 8.2 | 7 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 35 | 0 | 7.27 | 1.04 | 7.00 | 0.00 | 20.0 | 2.9 | 0.92 | .269 | 2.08 | 7.27 |
| 17 | | R. Branca | 21 | 1947 | World Series | BKN | 1 | 0 | 1 | .000 | 1 | 11.25 | 5 | 0 | 0 | 0 | 4.0 | 2 | 5 | 5 | 0 | 3 | 1 | 0 | 0 | 18 | 0 | 11.25 | 6.75 | 1.67 | 0.00 | 27.8 | 16.7 | 1.25 | .222 | 11.25 | 4.50 |
| 18 | | P. Dean | 21 | 1934 | World Series |  SLN | 2 | 2 | 0 | 1.000 | 2 | 1.00 | 11 | 2 | 0 | 0 | 18.0 | 15 | 2 | 4 | 0 | 7 | 1 | 0 | 1 | 77 | 0 | 5.50 | 3.50 | 1.57 | 0.00 | 14.3 | 9.1 | 1.22 | .259 | 2.00 | 7.50 |
| 19 | | W. Hoyt | 21 | 1921 | World Series | NYY | 3 | 2 | 1 | .667 | 3 | 0.00 | 18 | 3 | 1 | 0 | 27.0 | 18 | 0 | 2 | 0 | 11 | 0 | 0 | 0 | 106 | 0 | 6.00 | 3.67 | 1.64 | 0.00 | 17.0 | 10.4 | 1.07 | .234 | 0.67 | 6.00 |
| 20 |  | B. Ruth | 21 | 1916 | World Series |  BSA | 1 | 1 | 0 | 1.000 | 1 | 0.64 | 4 | 1 | 0 | 0 | 14.0 | 6 | 1 | 1 | 1 | 3 | 0 | 0 | 0 | 48 | 0 | 2.57 | 1.93 | 1.33 | 0.64 | 8.3 | 6.3 | 0.64 | .125 | 0.64 | 3.86 |
| 21 | | B. Joe Bush | 21 | 1914 | World Series | PHA | 1 | 0 | 1 | .000 | 1 | 3.27 | 4 | 1 | 0 | 0 | 11.0 | 9 | 4 | 5 | 1 | 4 | 0 | 0 | 1 | 46 | 0 | 3.27 | 3.27 | 1.00 | 0.82 | 8.7 | 8.7 | 1.18 | .216 | 4.09 | 7.36 |
| 22 | | C. Bender | 21 | 1905 | World Series | PHA | 2 | 1 | 1 | .500 | 2 | 1.06 | 13 | 2 | 1 | 0 | 17.0 | 9 | 2 | 2 | 0 | 6 | 0 | 0 | 0 | 64 | 0 | 6.88 | 3.18 | 2.17 | 0.00 | 20.3 | 9.4 | 0.88 | .200 | 1.06 | 4.76 |
| 23 |  | N. Syndergaard | 22 | 2015 | World Series | NYM | 1 | 1 | 0 | 1.000 | 1 | 4.50 | 6 | 0 | 0 | 0 | 6.0 | 7 | 3 | 3 | 0 | 2 | 0 | 0 | 0 | 26 | 0 | 9.00 | 3.00 | 3.00 | 0.00 | 23.1 | 7.7 | 1.50 | .389 | 4.50 | 10.50 |
| 24 |  | M. Wacha | 22 | 2013 | World Series | STL | 2 | 1 | 1 | .500 | 2 | 7.45 | 11 | 0 | 0 | 0 | 9.2 | 8 | 8 | 8 | 2 | 8 | 1 | 0 | 2 | 45 | 0 | 10.24 | 7.45 | 1.38 | 1.86 | 24.4 | 17.8 | 1.66 | .261 | 7.45 | 7.45 |
| 25 | | M. Bumgarner | 22 | 2012 | World Series | SFG | 1 | 1 | 0 | 1.000 | 1 | 0.00 | 8 | 0 | 0 | 0 | 7.0 | 2 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 23 | 0 | 10.29 | 2.57 | 4.00 | 0.00 | 34.8 | 8.7 | 0.57 | .167 | 0.00 | 2.57 |
StatMuse has game-level data for player age going back to the 1903 playoffs.
Some of the information used here was obtained free of charge from Retrosheet.
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Team Rankings
HR
173
19th
R
705
17th
SO
1,358
17th
ERA
3.82
10th
2025 Division Standings
| TEAM | W | L | PCT | GB |
|---|---|---|---|---|
| Dodgers | 93 | 69 | .574 | |
 Padres | 90 | 72 | .556 | 3.0 |
| Giants | 81 | 81 | .500 | 12.0 |
 Diamondbacks | 80 | 82 | .494 | 13.0 |
 Rockies | 43 | 119 | .265 | 50.0 |
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