NYM @ WSHFinal 4-6, Sep 27, 2026
IP 2.0, H 1, R 0, ER 0, BB 1, K 2, HR 0, PC-ST 31-17, ERA 3.68, PC 31
BaseballMLBWashington NationalsRelief pitcher
Riley Cornelio
Stats, career and game logRiley Cornelio is a right-handed relief pitcher for the Washington Nationals who made his MLB debut on Apr 24, 2026.
18 MLB games40 strikeouts
Updated
About Riley Cornelio
Born on June 6, 2000, Riley Cornelio is a relief pitcher for the Washington Nationals. He bats right-handed and throws right-handed, and he made his MLB debut on Apr 24, 2026.
Cornelio pitched in relief on Sep 27, 2026, allowing no earned runs on 1 hit over 2.0 innings, with 2 strikeouts and 1 walk in a 6-4 win against the New York Mets. Before that, on Sep 22, 2026, he started and allowed no earned runs on 1 hit over 2.2 innings, with 4 strikeouts and 3 walks in a 3-1 win at the Detroit Tigers. In relief on Sep 19, 2026, he allowed no earned runs on 3 hits over 1.2 innings, with 2 strikeouts and 1 walk in an 8-5 win at the St. Louis Cardinals.
Agatha Research DeskUpdated Oct 12, 2026Season by season18
Every season, every MLB appearance of his career, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | WSH | 18 | 3 | 36.2 | 40 | 29 | 3.68 | 1.50 |
| Career | 18 | 3 | 36.2 | 40 | 29 | 3.68 | 1.50 |
How he is doing now
2026 pitching3.68 ERA36.2 innings, 40 strikeouts, 1.50 WHIP
Nationals77-852026 regular season
Last game2.0 IP, 2 K, 0 ERSep 27 vs Mets
Injury status
No injury reports on file.
Game log, 2026
WSH @ DETFinal 3-1, Sep 22, 2026
IP 2.2, H 1, R 0, ER 0, BB 3, K 4, HR 0, PC-ST 60-33, ERA 3.89, PC 60
WSH @ STLFinal 8-5, Sep 19, 2026
IP 1.2, H 3, R 2, ER 0, BB 1, K 2, HR 0, PC-ST 33-21, ERA 4.22, PC 33
PHI @ WSHFinal 3-0, Sep 16, 2026
IP 2.2, H 0, R 0, ER 0, BB 2, K 1, HR 0, PC-ST 34-18, ERA 4.45, PC 34
Show all 7 games
LAA @ WSHFinal 5-6, Sep 13, 2026
IP 2.0, H 1, R 0, ER 0, BB 1, K 4, HR 0, PC-ST 34-21, ERA 4.88, PC 34
WSH @ SDFinal 4-5, Sep 8, 2026
IP 3.0, H 0, R 0, ER 0, BB 0, K 4, HR 0, PC-ST 36-24, ERA 5.26, PC 36
ATL @ WSHFinal 9-0, Sep 2, 2026
IP 2.2, H 3, R 3, ER 3, BB 1, K 3, HR 1, PC-ST 47-28, ERA 5.96, PC 47
Box score lines from ESPN.
Career
0years2026 to 2026
- 2026MLB debut5-4 loss vs White Sox
- 2026Best start3.0 IP, 4 K, 0 ER, vs Padres
- Sep 27, 2026Latest game2.0 IP, 2 K, 0 ER vs Mets
Regular season
18 games
36.2 IP, 40 K, 3.68 ERA
First MLB game
Apr 24, 2026: 2.0 IP, 1 K, 2 ERWhite Sox 5, Nationals 4
Latest game
Sep 27, 2026: 2.0 IP, 2 K, 0 ERNationals 6, Mets 4
Most often against
The teams he has faced most, with his teams' record and his line against each.
Atlanta Braves3 games
0-3his teams
His line: 4.1 IP, 6 K, 6.23 ERA
Last met Sep 2, 2026
Arizona Diamondbacks2 games
1-1his teams
His line: 4.0 IP, 1 K, 4.50 ERA
Last met Jul 26, 2026
Athletics1 game
1-0his teams
His line: 2.0 IP, 5 K, 0.00 ERA
Last met Jul 17, 2026
Boston Red Sox1 game
1-0his teams
His line: 1.0 IP, 2 K, 18.00 ERA
Last met Jul 1, 2026
Chicago White Sox1 game
0-1his teams
His line: 2.0 IP, 1 K, 9.00 ERA
Last met Apr 24, 2026
Colorado Rockies1 game
1-0his teams
His line: 1.2 IP, 0 K, 0.00 ERA
Last met Jul 20, 2026
Sources and updates
Stats, scores and injury reports come from Agatha's own records: MLB's own box scores, its transactions and ESPN's injury reports.
Updated Oct 12, 2026, 6:51 AM ET. Results and form refresh after every game; biography facts are checked weekly.