1903 Cy Young
1903 Cy Young PITCH WAA
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
| +003+ | 7.69 | 341.7 | 2.08 | 35 | 5 | BOS |
1903 Cy Young PITCH WAR
| Rank | WAR | W | L | SV | SO | HR | Age |
| +008+ | 7.1 | 28 | 9 | 2 | 176 | 6 | 36 |
Note: Daily data in early seasons can be incomplete and will differ from end of year results due to possible missing games, unknown allocation of unearned runs, scorekeeper changes/disputes, etc. The sum of all changes impact league wide averages that WAA calculations depend upon for all players. The end of year Rank/WAA record is correct.
Cy Young 1903 Bi-Weekly Snapshots
Post Season Cy Young WAA
Cy Young Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
| XXXXX | 1.39 | 34 | 1.85 | 3 | 1 | BOS |