What years did Jonathan Loaisiga play?

Jonathan Loaisiga played in Major League Baseball from 2018 to 2026.

Was Jonathan Loaisiga a pitcher?

Yes. Jonathan Loaisiga pitched in the major leagues, recording 26 wins and 280 strikeouts.

How many home runs did Jonathan Loaisiga hit?

Jonathan Loaisiga hit 0 career home runs.

What teams has Jonathan Loaisiga played for?

Jonathan Loaisiga has played for 2 teams: the New York Yankees (2018–2025) and the Arizona Diamondbacks (2026).

What are Jonathan Loaisiga's career stats?

In 260 games, Jonathan Loaisiga has gone 26-15 with a 3.30 ERA, 280 strikeouts, 316.1 innings pitched, and 10 saves.

What position does Jonathan Loaisiga play?

Jonathan Loaisiga plays primarily as a pitcher, the position where he has appeared in the most games.

How tall is Jonathan Loaisiga and how much does he weigh?

Jonathan Loaisiga is listed at 5 feet 11 inches and 165 pounds.

What number does Jonathan Loaisiga wear?

Jonathan Loaisiga wears number 43, according to MLB's 2026 roster data.

What was Jonathan Loaisiga's career ERA?

Jonathan Loaisiga finished with a 3.30 career ERA, going 26-15 with 280 strikeouts.

How many strikeouts did Jonathan Loaisiga have?

Jonathan Loaisiga recorded 280 career strikeouts.

Jonathan Loaisiga

Pitcher · Career Stats, Bio & Records (2018-2026)

Jonathan Loaisiga is a pitcher who has played in Major League Baseball since 2018 for the New York Yankees and the Arizona Diamondbacks, a span of 9 seasons. Across 260 career appearances, he has gone 26-15 with a 3.30 ERA and 280 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 2229.2.

W (Wins):: Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):: Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):: For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):: Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated October 15, 2026

Active Player

W–L 26–15

ERA 3.30

WHIP 1.21

SO 280

Pitcher PIV thru 2025 2229.2

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 5'11" / 165 lb
Born: 11/2/1994 in Managua, Managua, Nicaragua
MLB Debut: 2018-06-15
Jersey: #43

Full name: Jonathan Stanley Loaisiga

📊 Compare This Player 📈 View Career Timeline

Career Pitching Statistics

Jonathan Loaisiga — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
26	15	260	11	0	0	10	316.1	288	116	30	95	280	3.30	2229.2

Career ERA 3.30 vs. league average 4.22 across their career seasons — 21.7% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Jonathan Loaisiga Stats, Bio & Career Records
Year	Team	Lg	W	L	G	GS	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2018	NYA	AL	2	0	9	4	0	24.2	26	14	12	33	5.11	4.15 (-23%)	386.4
2019	NYA	AL	2	2	15	4	0	31.2	31	16	16	37	4.55	4.51 (-1%)	-353.0
2020	NYA	AL	3	0	12	3	0	23.0	21	9	7	22	3.52	4.45 (+21%)	25.7
2021	NYA	AL	9	4	57	0	5	70.2	56	17	16	69	2.17	4.27 (+49%)	3028.8
2022	NYA	AL	2	3	50	0	2	48.0	43	22	19	37	4.12	3.97 (-4%)	481.8
2023	NYA	AL	0	2	17	0	0	17.2	14	6	1	6	3.06	4.33 (+29%)	-99.5
2024	NYA	AL	1	0	3	0	0	4.0	7	0	1	3	0.00	—	0.0
2025	NYA	AL	0	1	30	0	1	29.2	34	14	10	25	4.25	4.16 (-2%)	-1241.0
2026	AZ	NL	7	3	67	0	2	67.0	56	18	13	48	2.42	4.18 (+42%)	-
Career · 9 seasons			26	15	260	11	10	316.1	288	116	95	280	3.30	—	2,229

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

Jonathan Loaisiga — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
193	2	0	0	0	0	0	0	0	0	2	.000	.000	.000	.000	0

Career AVG .000 vs. league average .246 across their career seasons — 100.0% below league average.

Career OBP .000 vs. league average .317 across their career seasons — 100.0% below league average.

Career SLG .000 vs. league average .410 across their career seasons — 100.0% below league average.

Career OPS .000 vs. league average .727 across their career seasons — 100.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Jonathan Loaisiga — Season-by-Season Batting
Year	Team	Lg	G	AB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2018	NYA	AL	9	2	2	.000	—	—	—	—	0.0
2019	NYA	AL	15	0	0	.000	—	—	—	—	0.0
2020	NYA	AL	12	0	0	.000	—	—	—	—	0.0
2021	NYA	AL	57	0	0	.000	—	—	—	—	0.0
2022	NYA	AL	50	0	0	.000	—	—	—	—	0.0
2023	NYA	AL	17	0	0	.000	—	—	—	—	0.0
2024	NYA	AL	3	0	0	.000	—	—	—	—	0.0
2025	NYA	AL	30	0	0	.000	—	—	—	—	0.0
Career · 8 seasons			193	2	2	.000	—	—	—	—	0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Postseason Statistics

Playoff Career Batting

Jonathan Loaisiga — Playoff Career Batting
G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
13	0	0	0	0	0	0	0	0	0	.000

Playoff Batting by Year

Jonathan Loaisiga — Playoff Batting by Year
Year	Round	Team	G	AVG
2022	ALCS	NYA	2	.000
2022	ALDS1	NYA	4	.000
2021	ALWC	NYA	1	.000
2020	ALDS1	NYA	1	.000
2020	ALWC2	NYA	1	.000
2019	ALCS	NYA	3	.000
2019	ALDS2	NYA	1	.000

Playoff Career Pitching

Jonathan Loaisiga — Playoff Career Pitching
W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
0	1	13	0	0	15.0	15	6	9	10	3.60

Playoff Pitching by Year

Jonathan Loaisiga — Playoff Pitching by Year
Year	Round	Team	L	G	IP	H	ER	BB	SO	ERA
2022	ALCS	NYA	1	2	4.1	3	1	1	1	2.08
2022	ALDS1	NYA	0	4	5.0	6	0	0	3	0.00
2021	ALWC	NYA	0	1	1.0	0	2	3	2	18.00
2020	ALDS1	NYA	0	1	1.2	2	1	0	1	5.40
2020	ALWC2	NYA	0	1	0.1	1	1	2	0	27.00
2019	ALCS	NYA	0	3	1.2	1	0	3	1	0.00
2019	ALDS2	NYA	0	1	1.0	2	1	0	2	9.00

Game Log & Splits

View full game log (386 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Jonathan Loaisiga — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	93	0	0	0	0	0	—
Away	100	2	0	0	0	0	.000

Pitching — Home / Away

Jonathan Loaisiga — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	93	123.1	126	57	35	122	4.16
Away	100	126.0	106	41	47	110	2.93

Last 10 Games — Pitching

Jonathan Loaisiga — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2025-08-01	NYY	MIA	—	0.1	1	0	0	0	0	0
2025-07-31	NYY	TBR	SV	1.0	1	0	0	0	1	0
2025-07-29	NYY	TBR	—	1.1	2	0	0	0	0	0
2025-07-27	NYY	PHI	—	0.2	1	0	0	0	1	0
2025-07-26	NYY	PHI	—	0.2	0	0	0	2	0	0
2025-07-23	NYY	TOR	—	0.2	0	0	0	0	0	0
2025-07-22	NYY	TOR	—	0.1	2	0	0	0	1	0
2025-07-19	NYY	ATL	—	1.1	2	1	1	2	0	0
2025-07-12	NYY	CHC	—	1.0	1	1	1	0	1	1
2025-07-09	NYY	SEA	—	1.0	3	3	3	0	2	2

Fielding Statistics

Career Fielding Totals by Position

Jonathan Loaisiga — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	193	11	18	47	1	4

Season-by-Season Fielding

Jonathan Loaisiga — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2018	NYA	P	9	4	2	2	0	2
2019	NYA	P	15	4	1	2	0	1
2020	NYA	P	12	3	1	5	0	0
2021	NYA	P	57	0	4	11	1	0
2022	NYA	P	50	0	4	13	0	0
2023	NYA	P	17	0	1	5	0	1
2024	NYA	P	3	0	1	2	0	0
2025	NYA	P	30	0	4	7	0	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Jonathan Loaisiga — Career Games by Position
Position	Games
Pitcher	193

Jonathan Loaisiga: the record in brief

Active since a debut on June 15, 2018, Jonathan Loaisiga has a record on this page that is still being added to. Every season row on the page belongs to the New York Yankees, from 2018 through 2025. Listed as a pitcher, Loaisiga threw and hit right-handed. Loaisiga is listed at 165 pounds on a 5-foot-11 frame. The birth record reads November 2, 1994, in Managua, Managua, Nicaragua. Loaisiga's full given name, per the bio, is Jonathan Stanley Loaisiga.

Loaisiga has pitched in 260 games, starting 11, and owns a 26-15 record and 3.30 ERA. The totals include 280 strikeouts and 10 saves. The leagues Loaisiga pitched in allowed 4.22 earned runs per nine over those seasons, so the career ERA was 21.7% better than average. Loaisiga won 9 games in 2021, the most of any season listed. Among the heaviest workloads, the lowest ERA was 2.17 in 2021, when the league's was 4.27. Pitcher PIV, the site's era-adjusted run-prevention measure, totals 2,229.2 for Loaisiga's career.

Frequently Asked Questions about Jonathan Loaisiga

What years did Jonathan Loaisiga play?: Jonathan Loaisiga played in Major League Baseball from 2018 to 2026.
Was Jonathan Loaisiga a pitcher?: Yes. Jonathan Loaisiga pitched in the major leagues, recording 26 wins and 280 strikeouts.
How many home runs did Jonathan Loaisiga hit?: Jonathan Loaisiga hit 0 career home runs.
What teams has Jonathan Loaisiga played for?: Jonathan Loaisiga has played for 2 teams: the New York Yankees (2018–2025) and the Arizona Diamondbacks (2026).
What are Jonathan Loaisiga's career stats?: In 260 games, Jonathan Loaisiga has gone 26-15 with a 3.30 ERA, 280 strikeouts, 316.1 innings pitched, and 10 saves.
What position does Jonathan Loaisiga play?: Jonathan Loaisiga plays primarily as a pitcher, the position where he has appeared in the most games.
How tall is Jonathan Loaisiga and how much does he weigh?: Jonathan Loaisiga is listed at 5 feet 11 inches and 165 pounds.
What number does Jonathan Loaisiga wear?: Jonathan Loaisiga wears number 43, according to MLB's 2026 roster data.
What was Jonathan Loaisiga's career ERA?: Jonathan Loaisiga finished with a 3.30 career ERA, going 26-15 with 280 strikeouts.
How many strikeouts did Jonathan Loaisiga have?: Jonathan Loaisiga recorded 280 career strikeouts.