Bert Blyleven vs Mickey Lolich: Career Stats Comparison

Bert Blyleven has the better career line of the two, leading 10 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Bert Blyleven played 1970–1992 as a pitcher; Mickey Lolich played 1963–1979 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

Bert Blyleven (1970–1992) and Mickey Lolich (1963–1979) — breaking in during the 1970s and the 1960s respectively, so they pitched against very different hitting environments. Bert Blyleven finished with 287 wins and 3,701 strikeouts; Mickey Lolich finished with 217 wins and 2,832 strikeouts. The numbers below run them through identical career and rate-stat lenses.

Quick answer

  • Who had the better ERA? Bert Blyleven, with 3.31 to Mickey Lolich's 3.44.
  • Who won more games? Bert Blyleven, with 287 to Mickey Lolich's 217.
  • Who recorded more strikeouts? Bert Blyleven, with 3,701 to Mickey Lolich's 2,832.
  • Who had the better WHIP? Bert Blyleven, with 1.20 to Mickey Lolich's 1.23.
  • Who pitched more innings? Bert Blyleven, with 4,970.0 to Mickey Lolich's 3,638.1.
  • Who threw more shutouts? Bert Blyleven, with 60 to Mickey Lolich's 41.
  • Who has the higher career Pitcher PIV? Bert Blyleven, with 74,910 career Pitcher PIV to Mickey Lolich's 32,209.
Leads Bert Blyleven 10 of 12 scored categories
Pitcher PIV edge Bert Blyleven +42,701
Read the verdict ↓

Bert Blyleven

Pitcher · 1970–1992
Wins
287
Losses
250
Strikeouts
3,701
ERA
3.31
WHIP
1.20
IP
4,970.0
View Bert Blyleven's full profile →

Mickey Lolich

Pitcher · 1963–1979
Wins
217
Losses
191
Strikeouts
2,832
ERA
3.44
WHIP
1.23
IP
3,638.1
View Mickey Lolich's full profile →

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 1970s and the 1960s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.

Bert Blyleven vs Mickey Lolich: Career Stats Comparison — Career Stats Side-by-Side
Statistic Bert Blyleven Mickey Lolich
Wins Leads: 287 217
Losses not scored 250 191
Games Leads: 692 586
Games Started Leads: 685 496
Complete Games Leads: 242 195
Shutouts Leads: 60 41
Saves 0 Leads: 11
Strikeouts Leads: 3,701 2,832
Walks not scored 1,322 1,099
Hits Allowed not scored 4,632 3,366
Home Runs Allowed not scored 430 347
Innings Pitched Leads: 4,970.0 3,638.1
ERA Leads: 3.31 3.44
WHIP Leads: 1.20 1.23
K/9 6.70 Leads: 7.01
BB/9 Leads: 2.39 2.72

PIV Comparison through 2025

By PIV (Player Impact Value), Bert Blyleven outpaces Mickey Lolich 74,910 to 32,209 — driven by both sides of the ledger: 3,121 PIV per season to 2,013, across 24 seasons to 16. 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.

Bert Blyleven
74,910
Career Pitcher PIV · 3,121 per season (24 seasons)
Mickey Lolich
32,209
Career Pitcher PIV · 2,013 per season (16 seasons)

How PIV is calculated →

Peak Seasons

The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).

Bert Blyleven — top 3 seasons by ERA (lower is better)

19732.52 ERA20-17, 258 K in 325 IP
19742.66 ERA17-17, 249 K in 281 IP
19772.72 ERA14-12, 182 K in 234 IP

Mickey Lolich — top 3 seasons by ERA (lower is better)

19722.50 ERA22-14, 250 K in 327 IP
19712.92 ERA25-14, 308 K in 376 IP
19673.04 ERA14-13, 174 K in 204 IP

Verdict

On the head-to-head card, Bert Blyleven leads in wins, strikeouts, ERA, and WHIP, while Mickey Lolich owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Bert Blyleven. PIV agrees: Bert Blyleven grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Bert Blyleven and Mickey Lolich careers compare

Bert Blyleven and Mickey Lolich were active at the same time between 1970 and 1979. With 692 games against 586 across 24 and 16 PIV seasons, neither player's totals owe much to extra seasons. Where Mickey Lolich comes out ahead, it is in saves (11 to 0) and strikeouts per nine (7.01 to 6.70). By rate, Bert Blyleven struck out 6.70 and walked 2.39 per nine innings; Mickey Lolich struck out 7.01 and walked 2.72. Both had the same role: Bert Blyleven was mainly a starter (685 starts in 692 games); Mickey Lolich was mainly a starter (496 starts in 586 games). In WHIP, Bert Blyleven's 1.20 beats Mickey Lolich's 1.23.

Bert Blyleven vs Mickey Lolich: Frequently Asked Questions

Who was better, Bert Blyleven or Mickey Lolich?
By the career statistics compared on this page, Bert Blyleven leads Mickey Lolich in 10 of the 12 scored categories.
Who had the better ERA?
Bert Blyleven, with 3.31 to Mickey Lolich's 3.44.
Who won more games?
Bert Blyleven, with 287 to Mickey Lolich's 217.
Who recorded more strikeouts?
Bert Blyleven, with 3,701 to Mickey Lolich's 2,832.
Who had the better WHIP?
Bert Blyleven, with 1.20 to Mickey Lolich's 1.23.

See These Players in Another Era