Jonathan Loaisiga ERA in 2025

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4.252025 Regular Season

Jonathan Loaisiga posted a 4.25 ERA in the 2025 regular season.

• 7th-best of Jonathan Loaisiga's 9 seasons on file; the best is 0.00 in 2024.
• Up 4.25 from 0.00 in 2024.

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

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Jonathan Loaisiga ERA in 2025, 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.
2018	NYY	9	2	0	5.11	24.2	33	12	1.54	0
2019	NYY	15	2	2	4.55	31.2	37	16	1.48	0
2020	NYY	12	3	0	3.52	23.0	22	7	1.22	0
2021	NYY	57	9	4	2.17	70.2	69	16	1.02	5
2022	NYY	50	2	3	4.13	48.0	37	19	1.29	2
2023	NYY	17	0	2	3.06	17.2	6	1	0.85	0
2024	NYY	3	1	0	0.00, led the MLB	4.0	3	1	2.00	0
2025	NYY	30	0	1	4.25	29.2	25	10	1.48	1
2026	ARI	65	7	3	2.25	64.0	47	11	1.02	1

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

Bold marks the best figure in the MLB that season, among players with at least 30 games.