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Greg Weissert
RP · 
Boston Red Sox · #57
Bats/ThrowsR/R
Height6' 2"
Weight235 lbs
BirthplaceBay Shore, NY
MLB Debut2021
🪪Bio
Bats/ThrowsR/R
Height6' 2"
Weight235 lbs
BirthplaceBay Shore, NY
MLB Debut2021
📊Season Stats (2026)
ERA3.64
W-L3-2
IP54.1
K56
WHIP1.25
SV1
Full Stat Line
G58
GS0
QS0
HLD6
H50
ER22
HR8
BB18
K/99.28
WAR0.39
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.294
OBP.364
SLG.441
OPS.805
vs Right-Handed Batters
AVG.243
OBP.292
SLG.369
OPS.661
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
| Opponent | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
vs. TOR
|
8.10 | 6.2 | 5 | 1 | .286 |
vs. ATL
|
5.40 | 3.1 | 1 | 1 | .167 |
vs. BAL
|
0.00 | 3.1 | 5 | 1 | .167 |
vs. LAA
|
0.00 | 3.1 | 4 | 1 | .100 |
vs. DET
|
0.00 | 3.0 | 3 | 0 | .100 |
vs. TB
|
3.00 | 3.0 | 3 | 3 | .400 |
vs. CHW
|
3.38 | 2.2 | 3 | 2 | .200 |
vs. HOU
|
3.86 | 2.1 | 2 | 0 | .375 |
vs. MIN
|
0.00 | 2.1 | 1 | 1 | .250 |
vs. NYY
|
3.86 | 2.1 | 3 | 2 | .400 |
vs. ARI
|
9.00 | 2.0 | 2 | 1 | .375 |
vs. NYM
|
4.50 | 2.0 | 2 | 0 | .250 |
vs. OAK
|
0.00 | 2.0 | 3 | 0 | .167 |
vs. SD
|
9.00 | 2.0 | 4 | 0 | .250 |
vs. SEA
|
0.00 | 2.0 | 2 | 1 | .143 |
vs. STL
|
0.00 | 2.0 | 1 | 1 | .000 |
vs. CIN
|
16.20 | 1.2 | 3 | 2 | .375 |
vs. WSH
|
10.80 | 1.2 | 1 | 1 | .167 |
vs. KC
|
0.00 | 1.1 | 1 | 0 | .200 |
vs. TEX
|
0.00 | 1.1 | 1 | 0 | .200 |
vs. CLE
|
0.00 | 1.0 | 1 | 0 | .250 |
vs. MIA
|
0.00 | 1.0 | 1 | 0 | .250 |
vs. SF
|
0.00 | 1.0 | 2 | 0 | .250 |
vs. MIL
|
0.00 | 0.2 | 2 | 0 | .333 |
vs. LAD
|
0.00 | 0.1 | 0 | 0 | .000 |
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 3.64 | 54.1 | 56 | 18 | .243 |
| Fenway Park | 4.97 | 29.0 | 32 | 11 | .291 |
| Rogers Centre | 6.75 | 2.2 | 2 | 1 | .273 |
| Angel Stadium | 0.00 | 2.1 | 2 | 1 | .000 |
| Busch Stadium II | 0.00 | 2.0 | 1 | 1 | .000 |
| Citi Field | 4.50 | 2.0 | 2 | 0 | .250 |
| Camden Yards | 0.00 | 1.2 | 2 | 1 | .286 |
| Great American | 16.20 | 1.2 | 3 | 2 | .375 |
| Kauffman Stadium | 0.00 | 1.1 | 1 | 0 | .200 |
| Yankee Stadium | 0.00 | 1.1 | 2 | 0 | .250 |
| Comerica Park | 0.00 | 1.0 | 0 | 0 | .000 |
| Marlins Park | 0.00 | 1.0 | 1 | 0 | .250 |
| Minute Maid Park | 0.00 | 1.0 | 1 | 0 | .000 |
| Progressive Field | 0.00 | 1.0 | 1 | 0 | .250 |
| Safeco Field | 0.00 | 1.0 | 1 | 0 | .000 |
| U.S. Cellular Field | 0.00 | 1.0 | 0 | 0 | .000 |
| Tropicana Field | 0.00 | 0.2 | 2 | 1 | .333 |
| Dodger Stadium | 0.00 | 0.1 | 0 | 0 | .000 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 0.00 | 1.2 | 3 | 1 | .167 |
| Last 15 Days | 0.00 | 5.0 | 7 | 2 | .222 |
| Last 30 Days | 2.00 | 9.0 | 12 | 4 | .242 |
| March | 16.20 | 1.2 | 3 | 2 | .375 |
| April | 3.38 | 10.2 | 14 | 2 | .256 |
| May | 3.27 | 11.0 | 5 | 4 | .268 |
| June | 4.00 | 9.0 | 9 | 3 | .182 |
| July | 3.27 | 11.0 | 10 | 1 | .225 |
| August | 3.24 | 8.1 | 11 | 4 | .258 |
| September | 0.00 | 2.2 | 4 | 2 | .200 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| Sinker | 322 | 35.1% | 42.9% | 28.8% | 14.4% | .265 | .349 | .339 |
| 4-Seam Fastball | 257 | 28.1% | 38.5% | 25.9% | 23.2% | .209 | .226 | .213 |
| Sweeper | 124 | 13.5% | 22.6% | 37.0% | 25.9% | .278 | .478 | .437 |
| Changeup | 119 | 13.0% | 21.0% | 62.1% | 53.5% | .276 | .239 | .155 |
| Slider | 74 | 8.1% | 41.9% | 20.8% | 8.3% | .300 | .407 | .515 |
| Curveball | 20 | 2.2% | 5.0% | — | — | .500 | .350 | .350 |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| Sinker | 204 | 94.0 | 2,118 | +2.4" | +1.5" | 5.9 |
| 4-Seam Fastball | 166 | 94.3 | 2,275 | +11.2" | +0.8" | 5.8 |
| Sweeper | 77 | 82.3 | 2,870 | +5.0" | -1.4" | 5.8 |
| Changeup | 77 | 85.2 | 1,627 | -5.0" | +1.3" | 6.2 |
| Slider | 44 | 85.9 | 2,546 | +3.2" | -0.4" | 5.9 |
| Curveball | 10 | 81.9 | 2,640 | -7.0" | -1.2" | 6.2 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
| Date | Opp | Score | IP | H | ER | BB | K | ERA | PC | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | Friday, September 11, 2026 |
KC
|
3-2 | 0.2 | 3 | 0 | 0 | 0 | 3.60 | 18 | — |
| L | Tuesday, September 8, 2026 |
LAA
|
6-1 | 1.0 | 1 | 0 | 0 | 2 | 3.64 | 16 | — |
| W | Saturday, September 5, 2026 |
BAL
|
5-0 | 0.2 | 0 | 0 | 1 | 1 | 3.71 | 13 | — |
| L | Tuesday, September 1, 2026 |
SEA
|
9-6 | 1.0 | 1 | 0 | 1 | 1 | 3.76 | 19 | — |
| L | Sunday, August 30, 2026 |
NYY
|
1-16 | 0.2 | 1 | 0 | 0 | 1 | 3.83 | 15 | — |
| L | Friday, August 28, 2026 |
NYY
|
0-1 | 0.2 | 0 | 0 | 0 | 1 | 3.88 | 5 | — |
| W | Tuesday, August 25, 2026 |
MIA
|
7-3 | 1.0 | 1 | 0 | 0 | 1 | 3.93 | 12 | — |
| W | Saturday, August 22, 2026 |
SF
|
2-3 | 1.0 | 1 | 0 | 0 | 2 | 4.01 | 19 | — |
| L | Wednesday, August 19, 2026 |
ARI
|
7-6 | 1.0 | 2 | 2 | 1 | 1 | 4.10 | 31 | — |
| W | Monday, August 17, 2026 |
ARI
|
1-11 | 1.0 | 1 | 0 | 0 | 1 | 3.80 | 13 | — |
👥Team — Boston Red Sox
| Player | Pos | Key Stat |
|---|---|---|
| Willson Contreras | 1B | .274 AVG |
| Isiah Kiner-Falefa | 2B | 0.00 ERA |
| Anthony Seigler | 2B | .250 AVG |
| Nick Sogard | 2B | .266 AVG |
| Caleb Durbin | 3B | .248 AVG |
| Adley Rutschman | C | .237 AVG |
| Connor Wong | C | .234 AVG |
| Ceddanne Rafaela | CF | .282 AVG |
| Eli White | CF | .246 AVG |
| Mickey Gasper | DH | .264 AVG |
| Romy Gonzalez | DH | .185 AVG |
| Jahmai Jones | DH | .218 AVG |
| Masataka Yoshida | DH | .274 AVG |
| Roman Anthony | LF | .236 AVG |
| Jarren Duran | LF | .207 AVG |
| Nate Eaton | LF | .139 AVG |
| Zack Kelly | Relief Pitcher | 3.31 ERA |
| Wilyer Abreu | RF | .256 AVG |
| Raymond Burgos | RP | 5.51 ERA |
| Aroldis Chapman | RP | 2.03 ERA |
| Danny Coulombe | RP | 4.50 ERA |
| Alec Gamboa | RP | 1.29 ERA |
| Tyron Guerrero | RP | 3.26 ERA |
| Seth Martinez | RP | 9.00 ERA |
| Erik Miller | RP | 2.15 ERA |
| Jovani Moran | RP | 3.41 ERA |
| Wyatt Olds | RP | 1.38 ERA |
| Jedixson Paez | RP | 18.90 ERA |
| Tyler Samaniego | RP | 2.66 ERA |
| Justin Slaten | RP | 4.60 ERA |
| Garrett Whitlock | RP | 1.88 ERA |
| Marcelo Mayer | Shortstop | .220 AVG |
| Brayan Bello | SP | 4.82 ERA |
| Jake Bennett | SP | 3.69 ERA |
| Sonny Gray | SP | 2.69 ERA |
| Eduardo Rivera | SP | 6.30 ERA |
| Patrick Sandoval | SP | 4.58 ERA |
| Ranger Suarez | SP | 3.44 ERA |
| Payton Tolle | SP | 3.15 ERA |
| Tsung-Che Cheng | SS | .256 AVG |
| Andruw Monasterio | SS | 67.50 ERA |
| Trevor Story | SS | .233 AVG |
| Garrett Crochet | Starting Pitcher | 6.30 ERA |
| Connelly Early | Starting Pitcher | 3.44 ERA |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for Greg Weissert and every MLB game — available in the BlowOutAlert workspace.