Luis Castillo

Seattle MarinersPitcher•2026

Reg4.94 ERA / 77 K / 80.1 IP / 8.7 K/9 / 17G

78.6% K O 3.575% OUT O 15.560% HA O 4.5

Season

All Luis Castillo props

Props — 202614 games with closing lines

Pitcher Ks

14g

avg 4.7

78.6%Over: 11-3

4vs O 3.5-325

Blue Jays7/3

✓✓✓✓✓✓✓✓✗✓

H: 80%(5)A: 77.8%(9)

SeasonalityAll lines

100%

40%

100%

Mar
1-0

Apr
2-3

May
4-0

Jun
3-0

Jul
1-0

Inside Edge

Star Ratings

Avg Rating

2.9★★★★★

5-Star Games

2(14%)

Total Matchups

Distribution

Prop Performance by Star Rating

How Castillo's prop overs perform at the primary line based on InsideEdge pitcher star rating

Stars	Pitcher KsO 3.5	Earned RunsO 2.5	Hits AllowedO 4.5	Outs RecordedO 15.5	Walks AllowedO 1.5
★★★★★	50%(1-1)	0%(0-1)	50%(1-1)	100%(1-0)	0%(0-2)
★★★★★	75%(3-1)	50%(2-2)	100%(2-0)	50%(1-1)	66.7%(2-1)
★★★★★	100%(2-0)	50%(1-1)	50%(1-1)	100%(1-0)	100%(2-0)
★★★★★	100%(3-0)	33.3%(1-2)	33.3%(1-2)	100%(1-0)	0%(0-2)
★★★★★	66.7%(2-1)	33.3%(1-2)	100%(1-0)	66.7%(2-1)	100%(2-0)

Recent Scouting Notes

★★★★★vs Dylan Cease

7/3

Current Blue Jays hitters are batting .249 against right-handers who rely heavily on the slider like like Castillo over the the last two years.

★★★★★vs Joey Cantillo

6/26

Current Guardians hitters are batting .217 against right-handers who rely heavily on the slider like like Castillo over the the last two years.

★★★★★vs Cade Cavalli

6/13

Nationals hitters have a 3.5 star average matchup against Castillo.

Game Log

Bet

43-67 Over14g · 110 props

Date ↓	Opp	Line	Actual	Result	Odds
7/3	vsBlue Jays	O 2.5	4	W	-900
7/3	vsBlue Jays	O 4.5	4	L	-140
7/3	vsBlue Jays	O 7.5	4	L	+700
7/3	vsBlue Jays	O 6.5	4	L	+340
7/3	vsBlue Jays	O 5.5	4	L	+158
7/3	vsBlue Jays	O 3.5	4	W	-325
7/3	vsBlue Jays	O 9.5	4	L	—
7/3	vsBlue Jays	O 1.5	4	W	—
7/3	vsBlue Jays	O 8.5	4	L	+1300
6/26	@Guardians	O 3.5	4	W	-349
6/26	@Guardians	O 5.5	4	L	+152
6/26	@Guardians	O 2.5	4	W	-1000
6/26	@Guardians	O 6.5	4	L	+325
6/26	@Guardians	O 4.5	4	L	-145
6/26	@Guardians	O 8.5	4	L	+1360
6/26	@Guardians	O 1.5	4	W	—
6/26	@Guardians	O 9.5	4	L	—
6/26	@Guardians	O 7.5	4	L	+680
6/13	@Nationals	O 3.5	4	W	-240
6/13	@Nationals	O 2.5	4	W	-650
6/13	@Nationals	O 6.5	4	L	+470
6/13	@Nationals	O 4.5	4	L	+102
6/13	@Nationals	O 5.5	4	L	+225
6/13	@Nationals	O 1.5	4	W	-3000
6/13	@Nationals	O 7.5	4	L	+810
6/13	@Nationals	O 8.5	4	L	+1680
6/7	@Tigers	O 3.5	5	W	-215
6/7	@Tigers	O 4.5	5	W	+109
6/7	@Tigers	O 5.5	5	L	+241
6/7	@Tigers	O 6.5	5	L	+515
6/7	@Tigers	O 2.5	5	W	-583
6/7	@Tigers	O 7.5	5	L	+1120
6/7	@Tigers	O 1.5	5	W	-2700
6/7	@Tigers	O 8.5	5	L	+1600
5/25	@Athletics	O 4.5	6	W	+148
5/25	@Athletics	O 2.5	6	W	-424
5/25	@Athletics	O 3.5	6	W	-162
5/25	@Athletics	O 6.5	6	L	+760
5/25	@Athletics	O 1.5	6	W	-1820
5/25	@Athletics	O 7.5	6	L	+1720
5/25	@Athletics	O 5.5	6	W	+339
5/14	@Astros	O 5.5	6	W	+131
5/14	@Astros	O 4.5	6	W	-162
5/14	@Astros	O 2.5	6	W	-1140
5/14	@Astros	O 3.5	6	W	-376
5/14	@Astros	O 7.5	6	L	+550
5/14	@Astros	O 6.5	6	L	+269
5/14	@Astros	O 8.5	6	L	+1080
5/14	@Astros	O 9.5	6	L	+1740
5/9	@White Sox	O 4.5	6	W	-123

Seattle Mariners Teammates

View all

Josh Naylor Randy Arozarena Cole Young J.P. Crawford Dominic Canzone Luke Raley Cal Raleigh Colt Emerson Mitch Garver Leo Rivas Victor Robles Rob Refsnyder Brendan Donovan Weston Wilson Jhonny Pereda

Frequently Asked Questions

How often does Luis Castillo hit the over on pitcher ks 3.5?

Luis Castillo hits the over on pitcher ks 3.5 78.6% of the time in 2026, going 11-3 with an average actual of 4.7.

Is Luis Castillo over 3.5 pitcher ks a good bet?

Based on 14 games in 2026, betting $100 on Luis Castillo over 3.5 pitcher ks at best closing odds has returned +$56 (+4% ROI). The hit rate is 78.6% with an average actual of 4.7.

What is Luis Castillo's pitcher ks average this season?

Luis Castillo averages 4.7 pitcher ks per game in 2026 across 14 games. The primary line is set at 3.5.