Seth Lonsway

Career Stats, Bio & Records (2026)

Seth Lonsway is a pitcher who has played in Major League Baseball since 2026. Across 2 career appearances, he has gone 0-0 with a 7.71 ERA and 2 strikeouts.

W (Wins):
Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):
Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
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

Active Player
W–L 0–0
ERA 7.71
WHIP 3.00
SO 2
Bats / Throws
L / L
Height / Weight
6'0" / 206 lb
Born
10/7/1998 in St. Mary's, OH, USA
MLB Debut
2026-08-29
Jersey
#86
Draft
2021

Full name: Seth Lonsway Lonsway

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Career Pitching Statistics

Seth Lonsway — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
0 0 2 0 0 0 0 2.1 7 2 0 0 2 7.71 0

Career ERA 7.71 vs. league average 4.18 across their career seasons — 84.7% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Seth Lonsway — Season-by-Season Pitching
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
2026 SF NL 0 0 2 0 0 0 0 2.1 7 2 0 2 7.71 — -
Career · 1 season 0 0 2 0 0 0 0 2.1 7 2 0 2 7.71 — 0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Seth Lonsway: the record in brief

The debut date in the bio is August 29, 2026; Seth Lonsway is an active player, and this profile updates as the season goes on. Lonsway spent the whole of the career shown here with one club, the San Francisco Giants. Lonsway is listed at 6 feet, 0 inches and 206 pounds. The bio says Lonsway both batted and threw left-handed. Lonsway was born on October 7, 1998, in St. Mary's, OH, USA.

Lonsway's career pitching line is 0 wins, 0 losses and a 7.71 ERA over 2 appearances. The same table counts 2 strikeouts. The league ERA over Lonsway's seasons was 4.18, so the 7.71 figure ran 84.7% worse than average. All of that pitching came in 2026, with 2 games and 2 strikeouts.

The draft line shows 2021.

Frequently Asked Questions about Seth Lonsway

Was Seth Lonsway a pitcher?
Yes. Seth Lonsway pitched in the major leagues, recording 0 wins and 2 strikeouts.
What was Seth Lonsway's career ERA?
Seth Lonsway finished with a 7.71 career ERA, going 0-0 with 2 strikeouts.
How many strikeouts did Seth Lonsway have?
Seth Lonsway recorded 2 career strikeouts.
Is Seth Lonsway in the Hall of Fame?
No. Seth Lonsway has not been inducted into the National Baseball Hall of Fame.