LongDong™ — Case Study: 2026-05-30

What Happened

A high-volume day with 39 HRs across scored matchups.

Pitcher vulnerability was the dominant signal — multiple arms with elevated FIP and HR/FB rates.

Why It Worked

🎯

Pitcher Vulnerability

10 of the top 15 faced pitchers with FIP ≥ 4.50

🌡️

Warm Weather

8 top-15 batters played in 75°F+ conditions

🏟️

HR-Friendly Parks

15 top-15 matchups in parks with factor ≥ 1.05

⚡

Stacking Opportunities

4 same-pitcher stacks for parlay potential

🔥 High Conviction Day

0 matchups met the Golden criteria (pitcher FIP > 5.0 AND HR/FB > 20%).

Stack Alerts: Roki Sasaki: {'batter': 'Kyle Schwarber', 'rank': 1, 'score': 88.0}, {'batter': 'Bryce Harper', 'rank': 4, 'score': 83.0} Brandon Sproat: {'batter': 'Yordan Alvarez', 'rank': 3, 'score': 86.0}, {'batter': 'Christian Walker', 'rank': 6, 'score': 80.0} Brady Singer: {'batter': 'Matt Olson', 'rank': 5, 'score': 81.0}, {'batter': 'Michael Harris II', 'rank': 7, 'score': 78.0} J.T. Ginn: {'batter': 'Aaron Judge', 'rank': 9, 'score': 78.0}, {'batter': 'Ben Rice', 'rank': 10, 'score': 77.0}

Top 15 Matchups

#	Result	Batter	Pitcher	HR/FB	Score	FIP	Park	Form	Barrel	HR Details
1	—	Kyle Schwarber	Roki Sasaki	50.5%	88	5.6	1.37	🌧️	16.5%
2	—	Casey Schmitt	Ryan Feltner	36.7%	86	5.3	1.27	·	14.5%
3	—	Yordan Alvarez	Brandon Sproat	35.0%	86	5.4	1.14	·	12.3%
4	—	Bryce Harper	Roki Sasaki	47.3%	83	5.6	1.37	🌤️	12.7%
5	✅	Matt Olson	Brady Singer	30.1%	81	6.6	1.28	🌧️	13.7%	106.4 mph · 403ft · 24.0°
6	✅	Christian Walker	Brandon Sproat	43.3%	80	5.4	1.14	·	9.9%	99.4 mph · 348ft · 25.0°
7	—	Michael Harris II	Brady Singer	42.9%	78	6.6	1.28	🌧️	14.0%
8	—	Ian Happ	Kyle Leahy	38.8%	78	5.1	1.10	·	14.0%
9	—	Aaron Judge	J.T. Ginn	24.1%	78	4.4	1.25	·	12.1%
10	—	Ben Rice	J.T. Ginn	38.6%	77	4.4	1.25	🌧️	10.9%
11	—	James Wood	Michael King	32.6%	77	3.7	1.11	·	15.3%
12	✅	Luke Raley	Ryne Nelson	34.8%	75	4.6	1.09	❄	14.6%	106.7 mph · 390ft · 32.0°
13	—	Juan Soto	Tyler Phillips	26.6%	75	3.4	1.10	·	10.8%
14	—	Hunter Goodman	Adrian Houser	34.0%	71	5.1	1.27	🌧️	11.2%
15	✅	JJ Bleday	Martín Pérez	21.6%	71	3.9	1.28	🌧️	10.3%	96.8 mph · 363ft · 36.0°

All 39 HRs in Slate

Show all ranked picks that hit

#	Batter	HR/FB	EV	Dist	LA
5	Matt Olson	30.1%	106.4	403ft	24.0°
6	Christian Walker	43.3%	99.4	348ft	25.0°
12	Luke Raley	34.8%	106.7	390ft	32.0°
15	JJ Bleday	21.6%	96.8	363ft	36.0°
23	Mike Trout	21.4%	105.3	417ft	38.0°
26	Shea Langeliers	26.2%	109.2	426ft	25.0°
30	Dominic Canzone	21.2%	100.4	412ft	28.0°
33	Ronald Acuña Jr.	18.3%	106.4	405ft	28.0°
36	Julio Rodríguez	20.6%	107.9	418ft	25.0°
46	Manny Machado	22.0%	102.4	362ft	25.0°
47	Yandy Díaz	20.3%	103.6	396ft	23.0°
56	Nick Kurtz	9.7%	104.0	410ft	36.0°
61	Joc Pederson	17.2%	108.0	367ft	19.0°
70	Pete Crow-Armstrong	13.9%	114.6	444ft	30.0°
72	Alec Bohm	11.5%	103.0	406ft	27.0°
73	Oneil Cruz	20.7%	106.1	420ft	30.0°
76	Jorge Mateo	12.1%	106.6	410ft	31.0°
84	Colson Montgomery	18.0%	106.8	372ft	41.0°
95	Spencer Horwitz	18.5%	107.2	408ft	29.0°
96	Tyler Soderstrom	10.4%	101.5	403ft	27.0°
104	Jo Adell	10.7%	113.2	431ft	32.0°
121	Oswald Peraza	11.7%	100.6	380ft	31.0°
127	Jarren Duran	10.3%	105.6	371ft	17.0°
132	Jake Mccarthy	11.5%	103.7	427ft	25.0°
136	Josh Jung	10.1%	102.2	399ft	38.0°
141	Wenceel Pérez	13.7%	100.3	386ft	25.0°
148	Jeremy Peña	11.2%	103.3	392ft	27.0°
150	Wade Meckler	12.2%	105.5	397ft	29.0°
151	Kyle Karros	10.8%	102.9	396ft	26.0°
178	Xander Bogaerts	7.3%	104.7	417ft	30.0°
184	Carter Jensen	10.3%	99.1	364ft	28.0°
190	Drew Gilbert	12.8%	105.9	421ft	23.0°
209	Andrew Benintendi	7.7%	100.6	368ft	30.0°
217	Jared Young	6.5%	105.2	366ft	25.0°
229	Edgar Quero	7.7%	97.7	371ft	31.0°
234	Fernando Tatis Jr.	7.3%	114.0	451ft	24.0°
254	Drew Millas	8.2%	106.6	397ft	25.0°
266	Jake Mangum	5.8%	104.5	410ft	23.0°
267	Hayden Senger	10.0%	100.5	386ft	36.0°

📅 2026-05-30

What Happened

Why It Worked

🔥 High Conviction Day

Top 15 Matchups

All 39 HRs in Slate

The top 10 picks. Every morning.