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Foster Griffin or Merrill Kelly

Who Should I Start? - Week 12 • Start New
Foster Griffin

Foster Griffin

SPWashington Nationals WAS
Merrill Kelly

Merrill Kelly

SPArizona Diamondbacks ARI
OR
🔓 EXPERT ANALYSIS

Owners starting Griffin over Kelly

 
 
 
 
START BOTH START BENCH BOTH BN

Includes Detailed Projections

Outlook Foster Griffin

Foster Griffin looks to maintain solid form in a favorable road matchup against the Diamondbacks.

Foster Griffin has been a stabilizer for the Nationals, posting a sharp 2.45 ERA and 1.00 WHIP with 11 strikeouts over his last 14 days. This strong run is crucial for a Washington squad currently sitting third in the NL East with a 31-32 record and dealing with rotation injuries to Josiah Gray and Jake Irvin. Griffin is locked in as a mid-rotation staple in the third slot of the starting rotation.

While Griffin's 30-day ERA sits at an elevated 5.98, his overall return to the majors has been a success, highlighted by a 3.80 ERA and 1.16 WHIP over 12 starts. This mark is significantly better than his projected rest-of-season ERA of 4.17, suggesting that his recent 14-day resurgence is closer to his true talent level than his mid-May struggles.

Looking at the remainder of the week, Griffin has one scheduled outing on Friday, June 5th, on the road against Arizona. He will match up against Merrill Kelly, who has struggled with a 5.06 ERA and a 1.46 WHIP. Given this favorable matchup against a vulnerable opposing pitcher, fantasy managers should confidently deploy Griffin. Verdict: Start.

Updated 1 day ago

Latest News Foster Griffin
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🔓 EXPERT ANALYSIS

Owners starting Kelly over Griffin

 
 
 
 
START BOTH START BENCH BOTH BN

Includes Detailed Projections

Outlook Merrill Kelly

Merrill Kelly aims to maintain strong recent form in a favorable home matchup against Washington.

Kelly has been outstanding over his last 30 days, posting a brilliant 2.38 ERA and 1.00 WHIP across five starts. He currently slots in as a mid-rotation staple for the third-place Diamondbacks (32-29), who are fighting through a two-game losing streak. Despite minor injury questions earlier in the season, Kelly is fully healthy and commanding his spot in the starting rotation.

While Kelly's cumulative 2026 stats show a bloated 5.15 ERA and 1.49 WHIP, those numbers are heavily skewed by early-season struggles prior to his brief rehab assignment. Our models project a strong rest-of-season correction, targeting a 3.98 ERA and 1.21 WHIP over 174.0 innings. His recent hot streak is no fluke, aligning closely with his career norms of solid ratio control.

Kelly has a single home start lined up on Friday, June 5, against the Nationals. He faces Foster Griffin, who holds a decent 3.76 ERA and 1.15 WHIP but is only started in 29 percent of leagues. With Arizona back at home and Kelly pitching at a high level, he is a confident fantasy option this week. Verdict: Start.

Updated 1 day ago

Latest News Merrill Kelly
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Performance Foster Griffin
Fantasy Chart Loading...

ERA W-L HLD SV SO WLK WHIP GP
5.400-000521.401
Season stats based on the past 7 days

ERA W-L HLD SV SO WLK WHIP GP
2.451-0001131.002
Season stats based on the past 14 days
Performance Merrill Kelly
Fantasy Chart Loading...

ERA W-L HLD SV SO WLK WHIP GP
3.530-000221.961
Season stats based on the past 7 days

ERA W-L HLD SV SO WLK WHIP GP
2.981-000641.322
Season stats based on the past 14 days
Next Up Own/Start Comparison
OWN/START Foster Griffin
OWN
62%
-2.08 compared to last week
START
42%
+8.11 compared to last week
OWN/START Merrill Kelly
OWN
59%
+1.37 compared to last week
START
43%
+18.81 compared to last week
Next Up Consensus Rankings
Expert Consensus Foster Griffin
73rd
Average Ranking of Fantasy Experts
Expert Consensus Merrill Kelly
64th
Average Ranking of Fantasy Experts
Next Up Player Breakdowns
Breakdown Foster Griffin

    Overview

  • Experts rank this player at 73rd among SP's. Based on his stats from the past 60 days, he is currently ranked 20th.
  • The current leader among SP's is Cristopher Sanchez
  • He is performing amazing in the past 30 days. Will he keep it up?
  • Trending Pitching Stats

  • Top 75 in WHIP and is currently ranked 54th with 1.17
  • Top 75 in ERA and is currently ranked 66th with 3.82
  • Top 50 in walks and is currently ranked 37th with 21
  • Top 75 in strikeouts and is currently ranked 73rd with 60
  • Top 25 in wins and is currently ranked 25th with 5
  • Top 75 in innings pitched and is currently ranked 60th with 62.0
  • His average points in the past two weeks have remained fairly consistant and rose slightly by 1 PPG.
  • At this point in the season his numbers compared to last years: W: +6, L: +2, WHIP: +1.15, ERA: +3.76, K's: +65, Walks: +21
Breakdown Merrill Kelly

    Overview

  • Experts rank this player at 65th among SP's. Based on his stats from the past 60 days, he is currently ranked 81st.
  • The current leader among SP's is Cristopher Sanchez
  • He has been under achieving. Look for him to bounce back.
  • Trending Pitching Stats

  • Currently ranked 133rd in WHIP with 1.49
  • Currently ranked 127th in ERA with 5.15
  • Top 35 in walks and is currently ranked 28th with 22
  • Top 25 in wins and is currently ranked 23rd with 5
  • His average points in the past two weeks have increased by 1.1 PPG.
  • At this point in the season his numbers compared to last years: W: -1, L: +1, WHIP: +0.465, ERA: +1.581, K's: -39, Walks: +3
Next Up Health Check
Injury Foster Griffin

No Injury Reported

Injury Merrill Kelly

No Injury Reported

Next Up Matchup Comparison
Matchups Foster Griffin
DateOpponentResult
Jun 01VS MIASandy AlcantaraL 3-7
Jun 02VS MIAJohn KingL 3-7
Jun 03VS MIAMax MeyerL 1-4
Jun 05@ARIMerrill Kelly
Jun 06@ARIEduardo Rodriguez
Jun 07@ARIMichael Soroka
ERA W-L HLD SV SO WLK WHIP GP
1.291-000910.711
Season stats based on this weeks opponents
Matchups Merrill Kelly
DateOpponentResult
Jun 01VS LADTaylor ClarkeW 4-1
Jun 02VS LADBlake TreinenL 5-6
Jun 03VS LADShohei OhtaniL 0-7
Jun 04VS LADPaul SewaldW 3-2
Jun 05VS WASFoster Griffin
Jun 06VS WASZack Littell
Jun 07VS WASCade Cavalli
ERA W-L HLD SV SO WLK WHIP GP
nan-nan0
Season stats based on this weeks opponents
Next Up Ratings Comparison
Rating Foster Griffin
9.99
FantasySP Player Rating
Rating Merrill Kelly
9.10
FantasySP Player Rating
Next Up Career Comparison
Career Foster Griffin
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2020 KC 1 1.2 23 1 0 0 1-0 0 0 5.4 8
2022 KC 6 7.1 111 4 5 0 0-0 7.36 1.64 4.9 5
2026 WAS 12 67.0 1110 65 21 0 6-2 3.76 1.15 8.7 168
ON PACE 30 173 2854 167 54 0 15-5 3.76 1.15 8.7 430
3-YEAR AVG 0 0 0 0 0 0 0-0 NAN NAN NAN 0
Career 19 76.0 1244 70 26 0 0-0 4.03 1.17 8.3
Career Merrill Kelly
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2019 ARI 32 181.0 2962 158 57 0 13-14 4.48 1.33 7.9 377
2020 ARI 5 31.1 473 29 5 0 3-2 2.59 0.99 8.3 85
2021 ARI 27 158.0 2425 130 41 0 7-11 4.44 1.29 7.4 276
2022 ARI 32 195.0 2988 170 59 0 13-8 3.42 1.14 7.9 450
2023 ARI 34 199.1 3161 215 77 0 15-9 3.3 1.16 9.7 519
2024 ARI 13 73.2 1142 63 19 0 5-1 4.03 1.17 7.7 169
2025 ARI 32 181.2 2833 167 48 0 12-9 3.57 1.13 8.3 430
2026 ARI 9 53.1 857 33 22 0 5-3 5.06 1.46 5.6 98
ON PACE 23 139 2239 86 57 0 13-7 5.06 1.46 5.6 255
3-YEAR AVG 26 151 2379 148 48 0 11-6 3.5 1.15 8.8 373
Career 184 1066.1 16841 965 328 0 0-0 3.87 1.22 8.1
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RECENT DECISIONS

Latest from FSP

Player News

Matchups

Week 1
ARI @LAC
ATL @PIT
BAL @IND
BUF @HOU
CAR vs CHI
CIN vs TB
CLE @JAC
DAL @NYG
DEN @KC
DET vs NO
GB @MIN
LAR vs SF
LV vs MIA
NE @SEA
NYJ @TEN
PHI vs WAS
Matchup Time Pitchers
ARI vs WAS 09:40 EDT EST Merrill Kelly
Foster Griffin
ATH @HOU 08:10 EDT EST Jack Perkins
Peter Lambert
ATL vs PIT 07:15 EDT EST Martin Perez
Mitch Keller
BAL @TOR 07:07 EDT EST Brandon Young
Trey Yesavage
BOS @NYY 07:05 EDT EST Sonny Gray
Ryan Weathers
CHC vs SF 02:20 EDT EST Edward Cabrera
Robbie Ray
CHW @PHI 06:40 EDT EST Anthony Kay
Jesus Luzardo
CIN @STL 08:15 EDT EST Brady Singer
Kyle Leahy
CLE @TEX 08:15 EDT EST Parker Messick
Kumar Rocker
COL vs MIL 08:40 EDT EST Ryan Feltner
Brandon Sproat
DET vs SEA 06:40 EDT EST Framber Valdez
Bryan Woo
KC @MIN 08:15 EDT EST Michael Wacha
Zebby Matthews
LAA @LAD 10:10 EDT EST Reid Detmers
Roki Sasaki
MIA vs TB 07:10 EDT EST Ryan Gusto
Drew Rasmussen
NYM @SD 09:40 EDT EST Christian Scott
Michael King
Matchup Time
NY @SA 8:30 PM EST
Matchup Time
No games scheduled