Jonah Tong

2026

Mets· RHP · throws R· 10.0 IP· 3.60 ERA· 1.50 WHIP· 47 BF

Grade

How good he's been, and at what

C46th percentile run prevention

StarterStill Searching

Below league average across the board.

Tong sits right around league average

The simulator expects 0.456 bases allowed per batter faced against him — better than 46th percentile of qualified pitchers. The soft spot is Command (3rd percentile).

Each spoke is a skill estimate adjusted for sample size (not raw season stats), so farther out = better.
Percentiles vs. 424 qualified pitchers — 100+ batters faced, starters and relievers pooled. He hasn't reached that bar himself, so he is measured against them rather than counted among them.
47 batters faced · data through 2026-07-29.

Plays like…

Same archetype, nearest by rate — the pitchers whose profile looks most like this one.

Travis AdamsTwins

Julian GarciaReds

Ian SeymourRays

Jack PerkinsAthletics

Pitcher type

What kind of pitcher he is, next to the league

Arsenal

What he throws, and what it does

Jonah Tong leans on his four-seam fastball (46% of pitches). His best pitch has been the changeup, saving 6.5 bases per 100 thrown vs average.

Pitch mix & swing-and-miss

What they throw, how hard, and what misses bats — from pitch tracking, regular season only.

+9 bases better than a replacement arm this season

allowed 19 bases vs a replacement arm's 28 over the same batters faced

Results

All pitches

saved 2.8 per 1003.9 saved across 137

Four-Seam Fastball

46% −12 pts vs '25

95.7 mph · lg 95.1 +0.5 mph vs '25

18% whiffs · lg 18%

saved 0.6 per 1000.5 saved across 85

Changeup

28%

86.9 mph · lg 87.2 +1.1 mph vs '25

27% whiffs · lg 29%

saved 6.5 per 1003.4 saved across 52

Cutter

20%

92.0 mph · lg 90.1

—

Curveball

6% −6 pts vs '25

80.9 mph · lg 81.6 +3.4 mph vs '25

—

Mix by batter side

How the mix shifts against lefty and righty bats. Overall results by batter side are under Platoon splits.

Four-Seam Fastball

50% vs LHH

41% vs RHH

By appearance

How the stuff has held up outing to outing

One point per outing — how his velocity, movement, and pitch mix have moved across the season, with league context for scale. Each pitch keeps the same color in every chart.

Platoon splits

How he fares against lefties and righties

Platoon splits (EB/PA allowed)

Dot = shrunk true-talent estimate; bar = 50% probable range. Tap or hover any mark for its number, or tab to a row for all of them.
Faint diamond = his raw, unshrunk rate against that side — small samples make it noisy, which is why the model pulls the dot toward a more trustworthy estimate.
These are bases allowed, so lower is better. Weighted by how often he faces each side, the two splits average back to his modeled overall EB/PA allowed — not the xEB/PA headline at the top of the page, which folds in strikeouts and walks differently.
Gray tick (marked “lg”) = league median vs that side; the faint gray band behind it spans the middle half of the league (25th–75th percentile).
Shrunk splits beat raw splits on held-out seasons, most decisively at low batters-faced counts (relievers especially), and converge with the raw numbers as exposure builds.

vs LHB26 PA0.416

Raw vs LHB rate (0.327) is off this scale — small samples like this are exactly why the shrunk estimate (the dot) is the trustworthy number, not the raw one.

vs RHB21 PA0.376

Raw vs RHB rate (0.540) is off this scale — small samples like this are exactly why the shrunk estimate (the dot) is the trustworthy number, not the raw one.

0.3420.3690.3960.4220.449

← better (fewer bases allowed)worse →

Better vs RHB than vs LHB by 0.040 EB/PA allowed (modeled).

50% probable range: +0.032 to +0.048

About the typical split for a righty arm (median 0.041). He allows less than the league median against both sides, so his weaker side is still a strength — not a hole.

Contact allowed

What hitters do when they connect

Batters go up the middle off him most often, but the hardest contact goes to the pull side.

Pull and oppo are relative to each batter's stance, so this pools all the hitters he faced.

Batted balls allowed

Where every ball hit off Jonah Tong landed this season.
Dots are colored by estimated bases (EB) — pale slate (easy out) to dark teal (home-run territory).
Filled dots are hits; hollow rings are outs — a dark ring in the outfield is a crushed ball his defense ran down.
Tap or hover a dot or a row to link the two; use the ▶ links below to watch on Baseball Savant.