Shane Bieber vs Fernando Valenzuela: Career Stats Comparison
Fernando Valenzuela has the better career line of the two, leading 8 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Shane Bieber has played 2018–present as a pitcher; Fernando Valenzuela played 1980–1997 as a pitcher.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
Shane Bieber (2018–present) and Fernando Valenzuela (1980–1997) — breaking in during the 2010s and the 1980s respectively, so they pitched against very different hitting environments. Shane Bieber has 71 wins and 1,039 strikeouts through October 12, 2026; Fernando Valenzuela finished with 173 wins and 2,074 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Shane Bieber, with 3.31 to Fernando Valenzuela's 3.54.
- Who won more games? Fernando Valenzuela, with 173 to Shane Bieber's 71.
- Who recorded more strikeouts? Fernando Valenzuela, with 2,074 to Shane Bieber's 1,039.
- Who had the better WHIP? Shane Bieber, with 1.13 to Fernando Valenzuela's 1.32.
- Who pitched more innings? Fernando Valenzuela, with 2,930.0 to Shane Bieber's 939.0.
- Who threw more shutouts? Fernando Valenzuela, with 31 to Shane Bieber's 2.
- Who has the higher career Pitcher PIV? Fernando Valenzuela, with 30,102 career Pitcher PIV to Shane Bieber's 25,160.
Shane Bieber
Fernando Valenzuela
Career Stats Side-by-Side
Every cell below is a career total or career rate. Cells highlighted in green mark the player who leads that line. Lower ERA, WHIP and BB/9 lead; higher K/9 leads. 12 of the 16 lines below are scored; the other 4 are counting totals on which fewer is not an achievement, so no one is awarded them. Totals where fewer is not an achievement -- losses, walks and hits allowed -- are left unmarked, because they track how long someone pitched rather than how well. Rate stats are not era-adjusted, and the 2010s and the 1980s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Shane Bieber is still active — his totals below are current through October 12, 2026.
| Statistic | Shane Bieber | Fernando Valenzuela |
|---|---|---|
| Wins | 71 | Leads: 173 |
| Losses not scored | 36 | 153 |
| Games | 154 | Leads: 453 |
| Games Started | 152 | Leads: 424 |
| Complete Games | 5 | Leads: 113 |
| Shutouts | 2 | Leads: 31 |
| Saves | 0 | Leads: 2 |
| Strikeouts | 1,039 | Leads: 2,074 |
| Walks not scored | 219 | 1,151 |
| Hits Allowed not scored | 841 | 2,718 |
| Home Runs Allowed not scored | 112 | 226 |
| Innings Pitched | 939.0 | Leads: 2,930.0 |
| ERA | Leads: 3.31 | 3.54 |
| WHIP | Leads: 1.13 | 1.32 |
| K/9 | Leads: 9.96 | 6.37 |
| BB/9 | Leads: 2.10 | 3.54 |
PIV Comparison through 2025
By PIV (Player Impact Value), Fernando Valenzuela leads Shane Bieber 30,102 to 25,160 — a longevity gap rather than a per-season one: Fernando Valenzuela played 18 seasons to Shane Bieber's 8, while Shane Bieber carries the higher per-season figure (3,145 to 1,672). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
PIV is computed through the 2025 season. The career totals on this page include 2026 to date, so PIV does not yet reflect the 2026 season.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Shane Bieber — top 3 seasons by ERA (lower is better)
Fernando Valenzuela — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Fernando Valenzuela leads in wins, strikeouts, and innings pitched, while Shane Bieber owns ERA, WHIP, and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Fernando Valenzuela. PIV agrees: Fernando Valenzuela grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Shane Bieber and Fernando Valenzuela careers compare
Fernando Valenzuela (1980–1997) was finished before Shane Bieber (2018–present) arrived, so they never shared a league. The table compares 154 games of Shane Bieber with 453 of Fernando Valenzuela across 8 and 18 PIV seasons; totals favor the longer career by default. Shane Bieber's edges on the table are ERA (3.31 to 3.54), WHIP (1.13 to 1.32), and strikeouts per nine (9.96 to 6.37). The per-nine rows read 9.96 strikeouts and 2.10 walks for Shane Bieber, 6.37 and 3.54 for Fernando Valenzuela. Shane Bieber was mainly a starter (152 starts in 154 games), and Fernando Valenzuela was mainly a starter (424 starts in 453 games). Shane Bieber's numbers are live and update with each game, so the comparison is a snapshot.
Shane Bieber vs Fernando Valenzuela: Frequently Asked Questions
- Who was better, Shane Bieber or Fernando Valenzuela?
- By the career statistics compared on this page, Fernando Valenzuela leads Shane Bieber in 8 of the 12 scored categories.
- Who had the better ERA?
- Shane Bieber, with 3.31 to Fernando Valenzuela's 3.54.
- Who won more games?
- Fernando Valenzuela, with 173 to Shane Bieber's 71.
- Who recorded more strikeouts?
- Fernando Valenzuela, with 2,074 to Shane Bieber's 1,039.
- Who had the better WHIP?
- Shane Bieber, with 1.13 to Fernando Valenzuela's 1.32.