St. Louis Cardinals Β· RP
This 24-year-old right-hander arrives in 2026 with Pitcher of the Month and Post-Season All-Star honors from his 2025 minor league campaign, signaling significant prospect pedigree heading into his MLB debut. With just three innings of major league experience and early season statistics that reflect the adjustment period, Mautz carries considerable upside as a young arm still settling into the rotation. The key for fantasy purposes lies in monitoring his roleβwhether he operates as a starter or reliever will dramatically shape his value across wins, strikeouts, ERA, and WHIP categories. Given his youth, accolades, and minimal major league track record, he represents a speculative but intriguing stash for patient managers willing to weather an early-season growing curve.
| Year | Team | G | GS | W | L | SV | ERA | WHIP | K | IP | BB |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | St. Louis Cardinals | 8 | 1 | 0 | 1 | 0 | 5.87 | 1.89 | 19 | 15.1 | 11 |
| Career | Totals | 8 | 1 | 0 | 1 | 0 | 5.87 | 1.89 | 19 | 15.1 | 11 |
Source: MLB Stats API Β· Multi-team seasons show combined totals β click to expand
| Year | Team | G | GS | W | L | SV | ERA | WHIP | K | IP | BB |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | Palm Beach Cardinals | 23 | 23 | 4 | 9 | 0 | 3.98 | 1.34 | 115 | 104.0 | 45 |
| 2024 | Peoria Chiefs | 24 | 24 | 3 | 13 | 0 | 5.18 | 1.45 | 128 | 121.2 | 47 |
| 2025 | Springfield Cardinals | 25 | 25 | 8 | 3 | 0 | 2.98 | 1.11 | 134 | 114.2 | 33 |
| 2026 | Memphis Redbirds | 31 | 16 | 1 | 6 | 0 | 3.78 | 1.56 | 89 | 85.2 | 65 |
| Career | Totals | 103 | 88 | 16 | 31 | 0 | 4.01 | 1.35 | 466 | 426 | 190 |
Source: MLB Stats API Β· Multi-team seasons show combined totals β click to expand
Current season Β· MLB only
| G | GS | IP | W-L | SV | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|---|---|
| 7 | 1 | 12.1 | 0-1 | 0 | 5.84 | 1.86 | 17 | 9 |
| G | GS | IP | W-L | SV | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|---|---|
| 8 | 1 | 15.1 | 0-1 | 0 | 5.87 | 1.89 | 19 | 11 |