Rest of Season Projection
AroldisCategoryJeff
55K →63
3.70ERA →3.67
1.24WHIP1.24
0–0W →5–10
17–31SV ←6–11
Current Season
AroldisCategoryJeff
25K →45
0.48ERA ←6.31
0.86WHIP ←1.75
0W →4
12SV ←5
What Each Player's System Trusts
Aroldis Chapman
- babip_againstNOISEBABIP-against 0.231 suppressed and unstable — flattering the ERA
- xeraNOISEluck-free xERA 2.94 is 2.46 above the ERA — regression coming
Jeff Hoffman
- babip_againstNOISEBABIP-against 0.516 elevated and unstable — bloating the ERA
Chapman projects for 17-31 SV but 3.70 ERA / 55 K, while Hoffman offers 6-11 SV with 3.67 ERA / 63 K. The K and ERA difference is minimal; the save edge favors Chapman. Sell-high holds; buy-low for Hoffman.