Hayden Penn WHIP in 2009

• 2nd-best of Hayden Penn's 4 seasons on file; the best is 1.75 in 2005.
• Down 0.32 from 2.59 in 2006.

Figures come from ESPN's box scores and were last read on September 22, 2026.

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Hayden Penn WHIP in 2009, season by season

Season↓	Team↓	GP↓iGP: Games the player appeared in, however briefly.	W↓iW: Games in which this pitcher was credited with the win.	L↓iL: Games in which this pitcher was charged with the loss.	ERA↓iERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.	IP↓iIP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.	K↓iK: Batters this pitcher struck out.	BB↓iBB: Times the batter reached first base on four balls.	WHIP↓iWHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.	SV↓iSV: Games finished by protecting a narrow lead to the last out.
2005	BAL	8	3	2	6.34	38.1	18	21	1.75	0
2006	BAL	6	0	4	15.10	19.2	8	13	2.59	0
2009	MIA	16	1	0	7.77	22.0	27	20	2.27	0
2010	PIT	3	0	0	30.86	2.1	0	3	4.71	0

What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV