Luis Castillo

Seattle MarinersPitcher•2026

Reg6.64 ERA / 47 K / 44.7 IP / 9.5 K/9 / 10G

85.7% HA O 4.571.4% BBA O 1.566.7% K O 3.5

Season

All Luis Castillo props

Props — 20269 games with closing lines

Pitcher Ks

avg 4.8

66.7%Over: 6-3

6vs O 3.5-376

Astros5/14

✓✓✓✗✓✗✗✓✓

H: 75%(4)A: 60%(5)

Seasonality

Mar

100%1-0

Apr

40%2-3

May

100%3-0

Inside Edge

Star Ratings

Avg Rating

3★★★★★

5-Star Games

1(11%)

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	Walks AllowedO 1.5	Outs RecordedO 15.5
★★★★★	0%(0-1)	—	100%(1-0)	0%(0-1)	—
★★★★★	66.7%(2-1)	66.7%(2-1)	100%(2-0)	100%(2-0)	50%(1-1)
★★★★★	100%(2-0)	50%(1-1)	50%(1-1)	100%(2-0)	100%(1-0)
★★★★★	100%(1-0)	100%(1-0)	100%(1-0)	0%(0-1)	—
★★★★★	50%(1-1)	50%(1-1)	100%(1-0)	100%(1-0)	50%(1-1)

Recent Scouting Notes

★★★★★vs Michael Burrows

5/14

Right-handed starters have an ERA of 3.39 against the Astros in the past 30 days, but other matchup data favors the Astros.

★★★★★vs Anthony Kay

5/9

Current White Sox hitters have struck out 24.6% of the time against pitchers similar to Castillo over the last two years (League Avg: 20%).

★★★★★vs Kris Bubic

5/3

Right-handed starters have an ERA of 3.12 against the Royals in the past 30 days.

Game Log

Bet

25-44 Over9g · 69 props

Date ↓	Opp	Line	Actual	Result	Odds
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
5/9	@White Sox	O 2.5	6	W	-571
5/9	@White Sox	O 3.5	6	W	-248
5/9	@White Sox	O 6.5	6	L	+370
5/9	@White Sox	O 5.5	6	W	+172
5/9	@White Sox	O 7.5	6	L	+750
5/9	@White Sox	O 8.5	6	L	+1000
5/9	@White Sox	O 9.5	6	L	+1700
5/9	@White Sox	O 1.5	6	W	-2000
5/3	vsRoyals	O 4.5	5	W	-122
5/3	vsRoyals	O 2.5	5	W	-750
5/3	vsRoyals	O 3.5	5	W	-275
5/3	vsRoyals	O 5.5	5	L	+188
5/3	vsRoyals	O 6.5	5	L	+370
5/3	vsRoyals	O 7.5	5	L	+750
5/3	vsRoyals	O 8.5	5	L	+1400
4/27	@Twins	O 4.5	3	L	-125
4/27	@Twins	O 2.5	3	W	-830
4/27	@Twins	O 3.5	3	L	-285
4/27	@Twins	O 5.5	3	L	+168
4/27	@Twins	O 6.5	3	L	+360
4/27	@Twins	O 7.5	3	L	+750
4/27	@Twins	O 8.5	3	L	+1380
4/21	vsAthletics	O 5.5	6	W	-106
4/21	vsAthletics	O 3.5	6	W	-550
4/21	vsAthletics	O 4.5	6	W	-235
4/21	vsAthletics	O 6.5	6	L	+188
4/21	vsAthletics	O 7.5	6	L	+370
4/21	vsAthletics	O 8.5	6	L	+750
4/21	vsAthletics	O 2.5	6	W	-2100
4/21	vsAthletics	O 9.5	6	L	+1340
4/16	@Padres	O 4.5	3	L	-120
4/16	@Padres	O 2.5	3	W	-700
4/16	@Padres	O 3.5	3	L	-275
4/16	@Padres	O 5.5	3	L	+170
4/16	@Padres	O 6.5	3	L	+346
4/16	@Padres	O 7.5	3	L	+720
4/16	@Padres	O 8.5	3	L	+1440
4/11	vsAstros	O 5.5	3	L	-104
4/11	vsAstros	O 2.5	3	W	-1960
4/11	vsAstros	O 3.5	3	L	-525
4/11	vsAstros	O 4.5	3	L	-225

Seattle Mariners Teammates

View all

Randy Arozarena Josh Naylor Cole Young Cal Raleigh J.P. Crawford Luke Raley Dominic Canzone Leo Rivas Brendan Donovan Mitch Garver Rob Refsnyder Connor Joe Jhonny Pereda Victor Robles Logan Gilbert

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 66.7% of the time in 2026, going 6-3 with an average actual of 4.8.

Is Luis Castillo over 3.5 pitcher ks a good bet?

Based on 9 games in 2026, betting $100 on Luis Castillo over 3.5 pitcher ks at best closing odds has returned -$153 (-17% ROI). The hit rate is 66.7% with an average actual of 4.8.

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

Luis Castillo averages 4.8 pitcher ks per game in 2026 across 9 games. The primary line is set at 3.5.