David Peterson

Active

Chicago Cubs · SP/RP

Age 316' 6" · 240 lbsThrows Left

#533 Current#349 Preseason

FBaseball Overview

Coming off a 2025 All-Star season where he posted a 4.22 ERA with 150 strikeouts, Peterson enters 2026 as a mid-rotation starter for the Cubs with solid upside in the strikeout category. However, his early 2026 numbers suggest concern, as he's already compiled a 5.86 ERA and 1.59 WHIP across 73.2 innings—a significant step backward from his previous form that could indicate injury, mechanics issues, or poor fortune. The win-loss column (4-6) has also been working against him, making him a riskier proposition for fantasy managers seeking consistency in ERA and WHIP. Peterson remains a talented strikeout producer when healthy, but fantasy owners should monitor his performance trends closely before fully committing, as the early-season regression warrants caution despite his 2025 All-Star credentials.

News Updates

Peterson makes impressive Cubs debut after trade
David Peterson was acquired by the Cubs from the Mets and made his debut for Chicago. The veteran left-hander's performance was exactly what the struggling Cubs organization hoped for. Peterson's arrival comes as the Cubs look to bolster their rotation mid-season.
Jun 28, 2026

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2020	New York Mets	10	9	6	2	0	3.44	1.21	40	49.2	24
2021	New York Mets	15	15	2	6	0	5.54	1.40	69	66.2	29
2022	New York Mets	28	19	7	5	0	3.83	1.33	126	105.2	48
2023	New York Mets	27	21	3	8	0	5.03	1.57	128	111.0	50
2024	New York Mets	21	21	10	3	0	2.90	1.29	101	121.0	46
2025	New York Mets	30	30	9	6	0	4.22	1.37	150	168.2	65
2026	2 teams▼	32	23	9	8	1	4.79	1.50	137	148.1	65
Career	Totals	163	138	46	38	1	4.25	1.40	751	771	327

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Pitching

Year	Team	G	GS	W	L	ERA	WHIP	K	IP	BB
2017	Brooklyn Cyclones	3	3	0	0	2.45	1.36	6	3.2	1
2018	2 teams▼	22	22	7	10	3.16	1.17	115	128	30
2019	Binghamton Rumble Ponies	24	24	3	6	4.19	1.34	122	116.0	37
2022	Syracuse Mets	6	6	2	3	4.85	1.65	34	26.0	10
2023	Syracuse Mets	7	7	1	2	4.86	1.62	43	37.0	23
2024	2 teams▼	3	3	0	0	0.00	0.35	16	8.2	1
Career	Totals	65	65	15	22	3.79	1.33	339	325.2	103

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Last Week / Last Month

Current season · MLB only

7 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
7	7	36.0	2-1	0	3.25	1.39	42	18

30 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
30	21	138.2	9-7	1	4.80	1.46	129	61

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo92.3 mph

Avg Spin2128 rpm

Whiff %22.7%

K %20.7%

BB %9.8%

Hard Hit %39.9%

Barrel %6.4%

xERA4.76

xBA Against0.267

xSLG Against0.403

BA Against0.267

SLG Against0.397

GB%50.8%

FB%19.7%

What These Stats Mean

FB Velo — Average fastball velocity. Harder throwers generate more swings and misses, setting up every other pitch in their arsenal. Velocity is the foundation of strikeout upside.

Avg Spin — Average spin rate across all pitches. Higher spin creates more movement and makes pitches harder to square up — elite spinners run better strikeout and batting average against numbers.

Whiff % — Swings-and-misses per swing. The most direct measure of a pitcher's ability to miss bats and the best leading indicator of strikeout rate.

K % — Strikeout rate per batter faced. The core fantasy pitching stat — high K% means reliable strikeout totals that hold up even in shorter starts.

BB % — Walk rate per batter faced. The primary control metric. High BB% tanks ERA and WHIP and keeps baserunners on constantly. Elite starters typically run below 7%.

Hard Hit % — Percentage of batted balls hit 95 mph or harder against. Low hard-hit% means weak contact, protecting both ERA and the defense behind the pitcher.

Barrel % — Percentage of batted balls barreled against. The most direct home run predictor — low barrel% pitchers rarely give up long balls.

xERA — Expected ERA based on contact quality allowed, removing the effect of sequencing, luck, and defense. Better predictor of future ERA than ERA itself.

xBA Against — Expected batting average opponents should hit based on contact quality. A gap between xBA and actual BA indicates unsustainable luck in either direction.

xSLG Against — Expected slugging allowed based on contact quality. High xSLG against predicts future extra-base damage; low xSLG means the pitcher is genuinely suppressing power.

BA Against — Actual batting average opponents are hitting — a key WHIP component. Check xBA to see if the number is sustainable.

SLG Against — Actual slugging allowed. Captures hits, doubles, triples, and home runs — lower means the pitcher is limiting the power damage he gives up.

GB% — Ground ball rate. High GB% pitchers generate double plays, limit home runs, and keep the ball in the park — great for protecting ERA and WHIP ratios.

FB% — Fly ball rate. High FB% pitchers give up more air contact — dangerous when combined with high exit velocity, less so when contact is soft.

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Year

Team

ERA

WHIP

2020

New York Mets

3.44

1.21

49.2

2021

New York Mets

5.54

1.40

66.2

2022

New York Mets

3.83

1.33

126

105.2

2023

New York Mets

5.03

1.57

128

111.0

2024

New York Mets

2.90

1.29

101

121.0

2025

New York Mets

4.22

1.37

150

168.2

2026

2 teams▼

4.79

1.50

137

148.1

Career

Totals

163

138

4.25

1.40

751

771

327

Year

Team

ERA

WHIP

2017

Brooklyn Cyclones

2.45

1.36

3.2

2018

2 teams▼

3.16

1.17

115

128

2019

Binghamton Rumble Ponies

4.19

1.34

122

116.0

2022

Syracuse Mets

4.85

1.65

26.0

2023

Syracuse Mets

4.86

1.62

37.0

2024

2 teams▼

0.00

0.35

8.2

Career

Totals

3.79

1.33

339

325.2

103

W-L

ERA

WHIP

36.0

2-1

3.25

1.39

W-L

ERA

WHIP

138.2

9-7

4.80

1.46

129