MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of Mark Vientos
Mark Vientos
NYM · 1B
Change to
Portrait of TJ Rumfield
TJ Rumfield
COL · 1B
Change to
Who's more valuable, rest of season

TJ Rumfield.

He projects to help you in more roto categories the rest of the way — runs and average.

Head-to-head
HR
R
RBI
SB
AVG

TJ Rumfield wins 2 categories (R, AVG); Mark Vientos wins 1 (HR); 2 even.

04

Under the hood

Underlying skill — each value vs league avg
Avg Exit Velolg 89.0 · higher = better
Mark Vientos
89.5
TJ Rumfield
83.7
Hard-Hit %lg 40.0% · higher = better
Mark Vientos
43.8%
TJ Rumfield
27.9%
Barrel %lg 8.0% · higher = better
Mark Vientos
10.1%
TJ Rumfield
5.2%
Chase %lg 28.5% · lower = better
Mark Vientos
36.6%
TJ Rumfield
30.4%
Swinging-Strike %lg 11.0% · lower = better
Mark Vientos
17.2%
TJ Rumfield
10.2%
xwOBAlg .315 · higher = better
Mark Vientos
.310
TJ Rumfield
.322
stabilized — trust it · small sample yet · dashed = league avg · right = better
05

The tape

Rest-of-season projection · bold = leads
rest-of-season projection current season projection range
Rate · batting average
AVGhigher is better
Mark Vientos
.200.310
lg AVG .295
now .224
.222
TJ Rumfield
.200.310
lg AVG .295
now .284
.248

Volume · counting stats
Home Runshigher is better
Mark Vientos
58.60
now 7
5
TJ Rumfield
58.60
now 7
3
Runshigher is better
Mark Vientos
2026.20
now 19
17
TJ Rumfield
2026.20
now 23
19
RBIhigher is better
Mark Vientos
20.8032.20
now 26
24
TJ Rumfield
20.8032.20
now 29
24
Stolen Baseshigher is better
Mark Vientos
.0001.20
now 0
0
TJ Rumfield
.0001.20
now 0
0
If you already own them — trade angle
Buy LowMark Vientos — buy low. The dip is a window to acquire.conf 0.66
Sell HighTJ Rumfield — sell high. His value is peaking; good time to trade him.conf 0.78
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