MLB Daily DeltaWeek 17 · July 20, 2026
Portrait of Iván Herrera
Iván Herrera
STL · DH
Change to
Portrait of Rafael Devers
Rafael Devers
SF · 1B
Change to
Who's more valuable, rest of season

Iván Herrera.

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

Head-to-head
HR
R
RBI
SB
AVG

Iván Herrera wins 3 categories (R, SB, AVG); Rafael Devers wins 2 (HR, RBI).

04

Under the hood

Underlying skill — each value vs league avg
Avg Exit Velolg 89.0 · higher = better
Iván Herrera
89.0
Rafael Devers
92.2
Hard-Hit %lg 40.0% · higher = better
Iván Herrera
39.0%
Rafael Devers
50.2%
Barrel %lg 8.0% · higher = better
Iván Herrera
5.6%
Rafael Devers
11.5%
Chase %lg 28.5% · lower = better
Iván Herrera
27.3%
Rafael Devers
29.7%
Swinging-Strike %lg 11.0% · lower = better
Iván Herrera
8.8%
Rafael Devers
14.3%
xwOBAlg .315 · higher = better
Iván Herrera
.342
Rafael Devers
.321
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
Iván Herrera
.210.270
lg AVG .295
now .260
.232
Rafael Devers
.210.270
lg AVG .295
now .251
.226

Volume · counting stats
Home Runshigher is better
Iván Herrera
58.20
now 7
4
Rafael Devers
58.20
now 7
6
Runshigher is better
Iván Herrera
2041
now 35
26
Rafael Devers
2041
now 26
20
RBIhigher is better
Iván Herrera
2034
now 27
20
Rafael Devers
2034
now 30
23
Stolen Baseshigher is better
Iván Herrera
.0003.20
now 2
1
Rafael Devers
.0003.20
now 0
0
If you already own them — trade angle
Hold · leans buyIván Herrera — hold.conf 0.60
Hold · steadyRafael Devers — hold.conf 0.60
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