Robert Gsellman

Pitcher · Career Stats, Bio & Records (2016-2022)

Robert Gsellman was a pitcher who played in Major League Baseball from 2016 to 2022 for the New York Mets and the Chicago Cubs, a span of 7 seasons. Across 184 career appearances, he went 20-18 with a 4.60 ERA and 289 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

W–L 20–18
ERA 4.60
WHIP 1.40
SO 289
Pitcher PIV -2.2
Position
Pitcher
Bats / Throws
R / R
Height / Weight
6'4" / 200 lb
Born
7/18/1993 in Santa Monica, CA, USA
MLB Debut
2016-08-23
Last Game
2022-05-30

Full name: Robert John Gsellman

Career Pitching Statistics

Robert Gsellman — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
20 18 184 34 1 0 15 366.0 386 187 42 126 289 4.60 -2.2

Career ERA 4.60 vs. league average 4.25 across their career seasons — 8.2% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

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.

Career Batting Statistics

Robert Gsellman — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
188 57 3 6 0 0 0 4 0 8 29 .105 .224 .105 .329 0

Career AVG .105 vs. league average .249 across their career seasons — 57.8% below league average.

Career OBP .224 vs. league average .319 across their career seasons — 29.9% below league average.

Career SLG .105 vs. league average .416 across their career seasons — 74.7% below league average.

Career OPS .329 vs. league average .735 across their career seasons — 55.2% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

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.

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Robert Gsellman — Batting — Home / Away
SplitGABRHHRRBIAVG
Home94292503.172
Away94281101.036

Pitching — Home / Away

Robert Gsellman — Pitching — Home / Away
SplitGIPHERBBSOERA
Home91192.0206110641605.16
Away93174.018077621293.98

Last 10 Games — Pitching

Robert Gsellman — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
2022-05-30 CHCMIL — 1.0000010
2022-05-29 CHCCHW L 1.1220000
2022-05-24 CHCCIN SV 3.0422111
2022-05-20 CHCAZ — 2.0111021
2022-05-19 CHCAZ — 1.0100000
2022-05-13 CHCAZ — 0.2100010
2022-05-10 CHCSDP L 2.2311020
2022-05-07 CHCLAD — 3.2544220
2021-10-03 NYNATL — 1.0000010
2021-10-02 NYNATL — 1.0211010

Fielding Statistics

Career Fielding Totals by Position

Robert Gsellman — Career Fielding Totals by Position
Position G GS PO A E DP
P 184 34 20 52 5 6

Season-by-Season Fielding

Career Games by Position

Position Diamond

Circle size = games played at each position.

Robert Gsellman — Career Games by Position
Position Games
Pitcher 184

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

Career Spans

Robert Gsellman (highlighted) compared to peers across the same era.

  1. 98
    Chris Rusin
    20-28, 4.65 ERA
  2. 93
    Steve Wilson
    13-18, 4.40 ERA
  3. 90
    Bryse Wilson
    20-23, 4.79 ERA
  4. 84
    Tony Peña
    23-19, 4.43 ERA
  5. 82
    Luis Cessa
    17-22, 4.43 ERA
  6. 80
    Bryan Hickerson
    21-21, 4.72 ERA

Robert Gsellman: the record in brief

Robert Gsellman played a first major league game on August 23, 2016 and a last one on May 30, 2022. The team column moves through the New York Mets (2016 through 2021) and the Chicago Cubs (2022). Gsellman, a pitcher by primary position, threw and hit right-handed. Gsellman is listed at 200 pounds on a 6-foot-4 frame. The birth record reads July 18, 1993, in Santa Monica, CA, USA. The given name on file is Robert John Gsellman.

The pitching table credits Gsellman with a 20-18 record and a 4.60 ERA in 184 games. Gsellman had 289 strikeouts and 15 saves. The league ERA over Gsellman's seasons was 4.25, so the 4.60 figure ran 8.2% worse than average. Gsellman won 8 games in 2017, the most of any season listed. Gsellman saved 13 games in 2018, the season high. In 2018, one of the busiest seasons, Gsellman posted a 4.28 ERA; the league figure that year was 4.15.

Frequently Asked Questions about Robert Gsellman

What years did Robert Gsellman play?
Robert Gsellman played in Major League Baseball from 2016 to 2022.
Was Robert Gsellman a pitcher?
Yes. Robert Gsellman pitched in the major leagues, recording 20 wins and 289 strikeouts.
How many home runs did Robert Gsellman hit?
Robert Gsellman hit 0 career home runs with 6 hits.
What teams did Robert Gsellman play for?
Robert Gsellman played for 2 teams: the New York Mets (2016–2021) and the Chicago Cubs (2022).
What were Robert Gsellman's career stats?
In 184 games, Robert Gsellman went 20-18 with a 4.60 ERA, 289 strikeouts, 366.0 innings pitched, and 15 saves.
What position did Robert Gsellman play?
Robert Gsellman played primarily as a pitcher, the position where he appeared in the most games.
How tall was Robert Gsellman and how much did he weigh?
Robert Gsellman was listed at 6 feet 4 inches and 200 pounds.
What was Robert Gsellman's career ERA?
Robert Gsellman finished with a 4.60 career ERA, going 20-18 with 289 strikeouts.
How many strikeouts did Robert Gsellman have?
Robert Gsellman recorded 289 career strikeouts.
Is Robert Gsellman in the Hall of Fame?
No. Robert Gsellman has not been inducted into the National Baseball Hall of Fame.