DataBaseball
2026
Jonah Tong headshot

Pitcher · 2026

Jonah Tong

Age
23
B/T
R/R
Height
6' 1"
Weight
180 lb
Number
#21
Born
June 19, 2003 in Markham, ON, Canada
MLB debut
August 29, 2025
Drafted
2022, round 7
High school
Georgia Premier
dbWAR
.1
2 season(s)
IP
10.0
ERA
3.60
FIP
5.09
K/9
6.3
FIP−
122
100 = avg

Jonah Tong is a relief pitcher for the New York Mets. In 2026 he struck out 7 batters over 10.0 innings across 3 appearances, going 1-1. His ERA of 3.60 was 13.8% lower than the league average of 4.18. Stripping out defence, his 5.09 FIP suggests that his ERA had some help behind him. He missed bats on 23.4% of swings (11.8% of every pitch he threw), walked 14.9% of the batters he faced and struck out 14.9%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2026.

FIP5.09
K/96.3
WHIP1.50
WAR-.1

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB26225045.227.346.227.28319.2%
vs RHB21173132.176.286.353.2849.5%

Pitch sequencing

What Jonah Tong throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter
Four-seamChangeupCutterCurveball

Select a count to see exactly what Jonah Tong throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2026.

Four-Seam Fastball45.5%8595.72,24838.8%18.4%
Changeup27.8%5286.91,59251.9%30.0%
Cutter20.3%3892.02,23150.0%25.0%
Curveball6.4%1280.92,83525.0%0.0%
Jonah Tong's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Pitching

Standard and advanced, by season.

Trend
20263010.011084773.605.091.506.36.386122-0.1
20255518.223024162297.714.311.7710.64.31861040.2

Head to head

Put Jonah Tong beside up to three others.

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Jonah Tong
How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.