Riley Cornelio

Active

Washington Nationals · RP/SP

Age 266' 3" · 195 lbsThrows Right

#656 Current

FBaseball Overview

This 26-year-old right-hander makes his MLB debut with the Nationals after limited early-season exposure, currently working his way into a defined role within Washington's rotation. Through his initial 8.1 innings, Cornelio has struggled with command and consistency, posting a 6.48 ERA and 1.92 WHIP while striking out just four batters, which raises immediate concerns about his ability to deliver fantasy value in ERA and WHIP categories. The upside exists for strikeout production given his prospect pedigree, but managers should approach him cautiously as a speculative pitcher who needs to demonstrate better control and effectiveness before becoming a reliable fantasy asset. His role and innings opportunity will be critical to monitor as the season unfolds, as he'll need extended opportunities to accumulate meaningful wins or innings pitched.

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2026	Washington Nationals	18	3	3	2	0	3.68	1.50	40	36.2	29
Career	Totals	18	3	3	2	0	3.68	1.50	40	36.2	29

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Pitching

Year	Team	G	GS	W	L	ERA	WHIP	K	IP	BB
2023	Fredericksburg Nationals	22	22	4	8	4.68	1.70	86	92.1	49
2024	Wilmington Blue Rocks	26	26	9	11	5.56	1.53	114	126.1	65
2025	3 teams▼	27	26	6	7	3.28	1.15	135	134.1	55
2026	Rochester Red Wings	22	9	6	1	3.68	1.21	103	66.0	30
Career	Totals	97	83	25	27	4.34	1.39	438	419	199

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Last Week / Last Month

Current season · MLB only

7 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
7	3	16.2	1-1	0	1.62	1.08	20	9

30 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
18	3	36.2	3-2	0	3.68	1.50	40	29

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo96.5 mph

Avg Spin2327 rpm

Whiff %34.5%

K %25.0%

BB %18.1%

Hard Hit %45.1%

Barrel %7.7%

xERA3.95

xBA Against0.198

xSLG Against0.305

BA Against0.206

SLG Against0.294

What These Stats Mean

FB Velo — Average fastball velocity. Harder throwers generate more swings and misses, setting up every other pitch in their arsenal. Velocity is the foundation of strikeout upside.

Avg Spin — Average spin rate across all pitches. Higher spin creates more movement and makes pitches harder to square up — elite spinners run better strikeout and batting average against numbers.

Whiff % — Swings-and-misses per swing. The most direct measure of a pitcher's ability to miss bats and the best leading indicator of strikeout rate.

K % — Strikeout rate per batter faced. The core fantasy pitching stat — high K% means reliable strikeout totals that hold up even in shorter starts.

BB % — Walk rate per batter faced. The primary control metric. High BB% tanks ERA and WHIP and keeps baserunners on constantly. Elite starters typically run below 7%.

Hard Hit % — Percentage of batted balls hit 95 mph or harder against. Low hard-hit% means weak contact, protecting both ERA and the defense behind the pitcher.

Barrel % — Percentage of batted balls barreled against. The most direct home run predictor — low barrel% pitchers rarely give up long balls.

xERA — Expected ERA based on contact quality allowed, removing the effect of sequencing, luck, and defense. Better predictor of future ERA than ERA itself.

xBA Against — Expected batting average opponents should hit based on contact quality. A gap between xBA and actual BA indicates unsustainable luck in either direction.

xSLG Against — Expected slugging allowed based on contact quality. High xSLG against predicts future extra-base damage; low xSLG means the pitcher is genuinely suppressing power.

BA Against — Actual batting average opponents are hitting — a key WHIP component. Check xBA to see if the number is sustainable.

SLG Against — Actual slugging allowed. Captures hits, doubles, triples, and home runs — lower means the pitcher is limiting the power damage he gives up.

GB% — Ground ball rate. High GB% pitchers generate double plays, limit home runs, and keep the ball in the park — great for protecting ERA and WHIP ratios.

FB% — Fly ball rate. High FB% pitchers give up more air contact — dangerous when combined with high exit velocity, less so when contact is soft.

Loading player data...

Year

Team

ERA

WHIP

2026

Washington Nationals

3.68

1.50

36.2

Career

Totals

3.68

1.50

36.2

Year

Team

ERA

WHIP

2023

Fredericksburg Nationals

4.68

1.70

92.1

2024

Wilmington Blue Rocks

5.56

1.53

114

126.1

2025

3 teams▼

3.28

1.15

135

134.1

2026

Rochester Red Wings

3.68

1.21

103

66.0

Career

Totals

4.34

1.39

438

419

199

W-L

ERA

WHIP

16.2

1-1

1.62

1.08

W-L

ERA

WHIP

36.2

3-2

3.68

1.50