Who's more valuable, rest of season
Edwin Díaz.
He projects to help you in more roto categories the rest of the way — strikeouts and wins. Aroldis Chapman’s box score looks better right now, but the luck-stripped projection flips it.
Head-to-head
K
▶
◀
ERA
WHIP
W
▶
SV
Edwin Díaz wins 2 categories (K, W); Aroldis Chapman wins 1 (ERA); 2 even.
04
Under the hood
Underlying skill — each value vs league avgFastball Velolg 94.0 · higher = better
Aroldis Chapman
97.0
Edwin Díaz
96.3
Swinging-Strike %lg 11.0% · higher = better
Aroldis Chapman
15.8%
Edwin Díaz
9.9%
Strikeout %lg 22.0% · higher = better
Aroldis Chapman
32.3%
Edwin Díaz
24.1%
Chase %lg 28.5% · higher = better
Aroldis Chapman
32.6%
Edwin Díaz
31.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Aroldis Chapman
38.3%
Edwin Díaz
53.2%
Barrel % Allowedlg 8.0% · lower = better
Aroldis Chapman
7.0%
Edwin Díaz
8.5%
xwOBA Allowedlg .315 · lower = better
Aroldis Chapman
.255
Edwin Díaz
.378
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 · earned-run quality
ERAlower is better
Aroldis Chapman
28.25
lg xERA 4.10
now 0.48
2.68
Edwin Díaz
28.25
lg xERA 4.10
now 10.50
3.70
WHIPlower is better
Aroldis Chapman
.9002.55
now 0.86
1.24
Edwin Díaz
.9002.55
now 2.33
1.24
Volume · rest of season
Strikeoutshigher is better
Aroldis Chapman
4032.20
now 25
7
Edwin Díaz
4032.20
now 10
9
Winshigher is better
Aroldis Chapman
.0001.48
now 0
0–0
Edwin Díaz
.0001.48
now 1
0–1
Saveshigher is better
Aroldis Chapman
.00016
now 12
2–4
Edwin Díaz
.00016
now 4
2–3
If you already own them — trade angle
BuyAroldis Chapman — buy.conf 0.92
Hold · wait & seeEdwin Díaz — hold.conf 0.55