Jonah Tong

Active

New York Mets · SP

Age 236' 1" · 180 lbsThrows Right

#642 Current#393 Preseason

FBaseball Overview

The 23-year-old right-hander arrives in 2026 as a promising young arm seeking consistency after earning EAS Pitcher of the Month honors and Post-Season All-Star recognition during his 2025 debut campaign. Through early action, he's posted a 3.60 ERA with a 1.50 WHIP across 10 innings, suggesting improved command and control compared to his rookie season when he struggled with a 7.71 ERA and 1.77 WHIP over 18.2 innings. Fantasy managers should monitor his path to a permanent rotation spot and expanded innings—with 22 strikeouts in limited 2025 action, he carries significant upside if he gains consistent playing time and refines his secondaries. The primary risks remain his youth, limited track record at the MLB level, and the need to prove he can sustain the control improvements reflected in his early 2026 numbers over a full season's workload.

MLB Pitching

Year	Team	G	GS	W	L	ERA	WHIP	K	IP	BB
2025	New York Mets	5	5	2	3	7.71	1.77	22	18.2	9
2026	New York Mets	7	4	2	2	3.82	1.24	34	30.2	14
Career	Totals	12	9	4	5	5.29	1.44	56	49.1	23

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
2023	2 teams▼	10	8	0	2	6.00	1.86	38	21	22
2024	3 teams▼	25	23	6	4	3.03	1.17	160	113	47
2025	2 teams▼	22	22	10	5	1.43	0.92	179	113.2	47
2026	Syracuse Mets	23	23	5	6	4.54	1.37	126	107.0	59
Career	Totals	80	76	21	17	3.15	1.19	503	354.2	175

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	4	30.2	2-2	0	3.82	1.24	34	14

30 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
7	4	30.2	2-2	0	3.82	1.24	34	14

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo94.9 mph

Avg Spin2128 rpm

Whiff %30.2%

K %25.4%

BB %10.4%

Hard Hit %36.9%

Barrel %6.0%

xERA3.13

xBA Against0.197

xSLG Against0.311

BA Against0.211

SLG Against0.298

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.

Loading player data...

Year

Team

ERA

WHIP

2025

New York Mets

7.71

1.77

18.2

2026

New York Mets

3.82

1.24

30.2

Career

Totals

5.29

1.44

49.1

Year

Team

ERA

WHIP

2023

2 teams▼

6.00

1.86

2024

3 teams▼

3.03

1.17

160

113

2025

2 teams▼

1.43

0.92

179

113.2

2026

Syracuse Mets

4.54

1.37

126

107.0

Career

Totals

3.15

1.19

503

354.2

175

W-L

ERA

WHIP

30.2

2-2

3.82

1.24

W-L

ERA

WHIP

30.2

2-2

3.82

1.24