Foster Griffin headshot

Foster Griffin

Cleveland Guardians · through 2026-09-11

Elite season

Why he matters right now

Foster Griffin is top-10 in the majors in wins

He is 3rd in wins at 15 — placements on MLB's own season boards, which rank every QUALIFIED pitcher in the sport rather than the few dozen this site tracks. Qualified is MLB's own bar, and it is the reason a part-season player with a big number is not on these boards at all.

This has been his headline for 30 straight days.

The case in 30 seconds

  • 15 3rd in wins at 15 on MLB's season leaderboards MLB season leaderboard (the league's own top-10 board of qualified players, not this site's roster)
  • 3.65 ERA over 163 innings, with 146 strikeouts, 29 starts and a 1.18 WHIP snapshot pitching board — the union of MLB's top-10 pitching boards, then MLB's 1.0 IP per team game rule applied; not the league's full qualified pool

The honest caveat

The open question is workload. He is at 163 innings over 29 starts; the same rate to the end of the season means roughly 178. Velocity and innings both have to hold, and neither is guaranteed — this page reports what the measurements say, not what a medical staff knows.

What to watch next

Next up: at Minnesota Twins.

Every claim above, with its source (2)
  1. 3rd in wins at 15 on MLB's season leaderboards MLB season leaderboard (the league's own top-10 board of qualified players, not this site's roster)
  2. ERA over 163 innings, with 146 strikeouts, 29 starts and a 1.18 WHIP snapshot pitching board — the union of MLB's top-10 pitching boards, then MLB's 1.0 IP per team game rule applied; not the league's full qualified pool

The evidence

What to watch next

at Minnesota Twins Target Field · 4:10 p.m. ET Opposite Connor Prielipp

Situational splits

SplitIPERASOWHIPAVG against
vs RHP 93.1 75 1.18 .246
vs RHP 23.2 21 1.65 .302
vs RHP 117.0 96 1.27 .258
vs LHP 36.0 41 0.81 .171
vs LHP 9.0 9 1.56 .289
vs LHP 45.0 50 0.96 .198
Home 59.0 2.90 50 1.10 .231
Home 21.0 4.71 19 1.48 .293
Home 80.0 3.38 69 1.20 .248
Away 70.1 3.20 66 1.05 .221
Away 12.1 8.03 11 1.78 .308
Away 82.2 3.92 77 1.16 .236
Day 58.1 3.39 51 1.22 .244
Day 14.0 5.79 14 1.57 .291
Day 72.1 3.86 65 1.29 .254
Night 71.0 2.79 65 0.96 .211
Night 19.1 6.05 16 1.60 .304
Night 90.1 3.49 81 1.10 .232

2026 season, MLB Stats API. A split with no plate appearances is omitted rather than shown as zeroes.

29G
29GS
162.2IP
15-5W-L
3.65ERA
1.18WHIP
146K
8.08K/9
0SV

Strikeout chase

ChaseCurrentPaceNeeded from hereStatus
200 K 146 160 54 K · 20.0 per outing over 2.7 left IMPOSSIBLE
250 K 146 160 104 K · 38.5 per outing over 2.7 left IMPOSSIBLE
300 K 146 160 154 K · 57.0 per outing over 2.7 left IMPOSSIBLE
350 K 146 160 204 K · 75.6 per outing over 2.7 left IMPOSSIBLE
383 K 146 160 237 K · 87.8 per outing over 2.7 left IMPOSSIBLE

ERA & WHIP finish lines

FinishCurrentRequired rest-of-seasonStatus
Sub-2.00 ERA3.65 -15.46 over about 15 innings IMPOSSIBLE
Sub-1.75 ERA3.65 -18.35 over about 15 innings IMPOSSIBLE
Sub-1.50 ERA3.65 -21.25 over about 15 innings IMPOSSIBLE
Sub-1.00 WHIP1.18 -0.91 IMPOSSIBLE
Sub-0.90 WHIP1.18 -2.06 IMPOSSIBLE

Recent game log

Derived nightly from the snapshot ledger — each row is the difference between consecutive days; multi-day rows are labeled.

DateOppResultIPK
2026-09-09 Baltimore Orioles L 5-9 2.14
2026-09-04 Detroit Tigers W 7-6 6.03
2026-08-18 San Francisco Giants W 8-1 6.06
2026-08-12 Detroit Tigers W 6-4 5.03
2026-08-06 New York Mets L 6-13 4.06
2026-07-31 Atlanta Braves L 2-6 5.13
2026-07-25 Arizona Diamondbacks W 5-3 6.22
2026-07-19 Athletics W 5-2 7.02

Lahman + Retrosheet context

How this season fits history

Comparable finishesMedian 169 K

n=446 near this checkpoint

Chase history

10912814607-0809-11
Strikeouts, day by day
15817318807-0809-11
Projected season K, day by day

Stuff watch

Cutter velocity, start by start

Every start's average against his own trailing baseline of 88.3 ± 0.72 mph. Ringed dots sit more than one standard deviation under the baseline; last start 88.36 mph (2026-09-09).

89872026-03-30: 88.75 mph (n=29)2026-04-05: 88.02 mph (n=29)2026-04-11: 87.66 mph (n=30)2026-04-16: 87.52 mph (n=25)2026-04-21: 87.98 mph (n=21)2026-04-26: 87.96 mph (n=29)2026-05-02: 87.48 mph (n=29)2026-05-08: 87.53 mph (n=38)2026-05-14: 87.37 mph (n=31)2026-05-19: 87.97 mph (n=28)2026-05-24: 87.22 mph (n=27)2026-05-30: 87.66 mph (n=28)2026-06-05: 88.75 mph (n=15)2026-06-10: 88.76 mph (n=33)2026-06-16: 89.02 mph (n=29)2026-06-22: 88.81 mph (n=32)2026-06-27: 88.33 mph (n=49)2026-07-03: 89.06 mph (n=34)2026-07-08: 89.38 mph (n=36)2026-07-19: 88.63 mph (n=38)2026-07-25: 88.93 mph (n=39)2026-07-31: 88.77 mph (n=24)2026-09-04: 89.43 mph (n=47)2026-09-09: 88.36 mph (n=17)

No active signals — inside one standard deviation of his own baseline. A trend report, not a diagnosis.