Juan Sierra
Houston Astros (DSL)OF
Age: 19
Bats/Throws: R/R
6'1" / 208
DOB: 12/8/2005
(19 years, 4 months, 21 days)
OF
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Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| Season | Team | Level | Age | G G - Games Played | PA PA - Plate Appearances | HR HR - Home Runs | R R - Runs | RBI RBI - Runs Batted In | SB SB - Stolen Bases | divider | BB% BB% - Walk Percentage (BB/PA) | K% K% - Strikeout Percentage (SO/PA) | ISO ISO - Isolated Power (SLG-AVG) | BABIP BABIP - Batting Average on Balls in Play | divider | AVG AVG - Batting Average (H/AB) | OBP OBP - On Base Percentage | SLG SLG - Slugging Percentage | wOBA wOBA - Weighted On Base Average (Linear Weights) | xwOBA xwOBA - Expected weighted on-base average | wRC+ wRC+ - Runs per PA scaled where 100 is average; both league and park adjusted; based on wOBA | divider | BsR Base Running - Base running runs above average, includes SB or CS | divider | Off Offense - Batting and Base Running combined (above average) | Def Defense - Fielding and Positional Adjustment combined (above average) | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | HOU | DSL | 17 | 41 | 150 | 4 | 21 | 10 | 1 | 16.7% | 19.3% | .124 | .191 | .174 | .327 | .298 | .324 | 76 | |||||||||
| 2024 | HOU | DSL | 18 | 51 | 195 | 9 | 33 | 33 | 10 | 11.3% | 20.5% | .227 | .299 | .270 | .374 | .497 | .417 | 126 | |||||||||
| 2025 | Steamer | PROJ | 19 | 0 | 1 | 0 | 0 | 0 | 0 | 5.3% | 34.3% | .084 | .205 | .148 | .201 | .232 | .195 | 22 | 0.0 | -0.1 | 0.0 | 0.0 | |||||
| 2025 | Steamer | ROS | 0 | 1 | 0 | 0 | 0 | 0 | 5.3% | 34.3% | .086 | .204 | .148 | .202 | .233 | .198 | 23 | 0.0 | -0.1 | 0.0 | 0.0 |
| Season | Team | Level | Age | G G - Games Played | PA PA - Plate Appearances | HR HR - Home Runs | R R - Runs | RBI RBI - Runs Batted In | SB SB - Stolen Bases | divider | BB% BB% - Walk Percentage (BB/PA) | K% K% - Strikeout Percentage (SO/PA) | ISO ISO - Isolated Power (SLG-AVG) | BABIP BABIP - Batting Average on Balls in Play | divider | AVG AVG - Batting Average (H/AB) | OBP OBP - On Base Percentage | SLG SLG - Slugging Percentage | wOBA wOBA - Weighted On Base Average (Linear Weights) | xwOBA xwOBA - Expected weighted on-base average | wRC+ wRC+ - Runs per PA scaled where 100 is average; both league and park adjusted; based on wOBA | divider | BsR Base Running - Base running runs above average, includes SB or CS | divider | Off Offense - Batting and Base Running combined (above average) | Def Defense - Fielding and Positional Adjustment combined (above average) | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | HOU | DSL | 17 | 41 | 150 | 4 | 21 | 10 | 1 | 16.7% | 19.3% | .124 | .191 | .174 | .327 | .298 | .324 | 76 | |||||||||
| 2024 | HOU | DSL | 18 | 51 | 195 | 9 | 33 | 33 | 10 | 11.3% | 20.5% | .227 | .299 | .270 | .374 | .497 | .417 | 126 | |||||||||
| 2025 | Steamer | PROJ | 19 | 0 | 1 | 0 | 0 | 0 | 0 | 5.3% | 34.3% | .084 | .205 | .148 | .201 | .232 | .195 | 22 | 0.0 | -0.1 | 0.0 | 0.0 | |||||
| 2025 | Steamer | ROS | 0 | 1 | 0 | 0 | 0 | 0 | 5.3% | 34.3% | .086 | .204 | .148 | .202 | .233 | .198 | 23 | 0.0 | -0.1 | 0.0 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| Season | Team | Level | G G - Games Played | AB AB - At Bats | PA PA - Plate Appearances | H H - Hits | 1B 1B - Singles | 2B 2B - Doubles | 3B 3B - Triples | HR HR - Home Runs | R R - Runs | RBI RBI - Runs Batted In | BB BB - Walks | IBB IBB - Intentional Walks | SO SO - Strike Outs | HBP HBP - Hit by Pitch | SF SF - Sacrifice Fly | SH SH - Sacrifice Hit | GDP GDP - Ground into Double Play | SB SB - Stolen Bases | CS CS - Caught Stealing | AVG AVG - Batting Average (H/AB) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | HOU | DSL | 41 | 121 | 150 | 21 | 14 | 3 | 0 | 4 | 21 | 10 | 25 | 0 | 29 | 3 | 1 | 0 | 3 | 1 | 1 | .174 |
| 2024 | HOU | DSL | 51 | 163 | 195 | 44 | 25 | 10 | 0 | 9 | 33 | 33 | 22 | 1 | 40 | 7 | 3 | 0 | 2 | 10 | 3 | .270 |
| 2025 | Steamer | PROJ | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .148 | |
| 2025 | Steamer | ROS | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .148 |
| Season | Team | Level | G G - Games Played | AB AB - At Bats | PA PA - Plate Appearances | H H - Hits | 1B 1B - Singles | 2B 2B - Doubles | 3B 3B - Triples | HR HR - Home Runs | R R - Runs | RBI RBI - Runs Batted In | BB BB - Walks | IBB IBB - Intentional Walks | SO SO - Strike Outs | HBP HBP - Hit by Pitch | SF SF - Sacrifice Fly | SH SH - Sacrifice Hit | GDP GDP - Ground into Double Play | SB SB - Stolen Bases | CS CS - Caught Stealing | AVG AVG - Batting Average (H/AB) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | HOU | DSL | 41 | 121 | 150 | 21 | 14 | 3 | 0 | 4 | 21 | 10 | 25 | 0 | 29 | 3 | 1 | 0 | 3 | 1 | 1 | .174 |
| 2024 | HOU | DSL | 51 | 163 | 195 | 44 | 25 | 10 | 0 | 9 | 33 | 33 | 22 | 1 | 40 | 7 | 3 | 0 | 2 | 10 | 3 | .270 |
| 2025 | Steamer | PROJ | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .148 | |
| 2025 | Steamer | ROS | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .148 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAverages
| Season | Team | Level | BB% BB% - Walk Percentage (BB/PA) | K% K% - Strikeout Percentage (SO/PA) | BB/K BB/K - Walk to Strikeout Ratio (BB/SO) | divider | AVG AVG - Batting Average (H/AB) | OBP OBP - On Base Percentage | SLG SLG - Slugging Percentage | OPS OPS - On Base + Slugging Percentage | divider | ISO ISO - Isolated Power (SLG-AVG) | Spd Spd - Speed Score (4 Component Version) | BABIP BABIP - Batting Average on Balls in Play | divider | UBR UBR - Ultimate Base Running in runs above average, does not include SB or CS | wGDP wGDP - Ground into Double Play Runs above average | XBR XBR - Statcast baserunning above average | wSB wSB - Stolen Bases and Caught Stealing runs above average | divider | wRC wRC - Runs Created based wOBA | wRAA wRAA - Runs Above Average based on wOBA | wOBA wOBA - Weighted On Base Average (Linear Weights) | wRC+ wRC+ - Runs per PA scaled where 100 is average; both league and park adjusted; based on wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | HOU | DSL | 16.7% | 19.3% | 0.86 | .174 | .327 | .298 | .624 | .124 | 3.0 | .191 | -0.3 | 17 | -4.8 | .324 | 76 | |||||||
| 2024 | HOU | DSL | 11.3% | 20.5% | 0.55 | .270 | .374 | .497 | .871 | .227 | 5.5 | .299 | 0.2 | 37 | 8.2 | .417 | 126 | |||||||
| 2025 | Steamer | PROJ | 5.3% | 34.3% | 0.15 | .148 | .201 | .232 | .434 | .084 | 3.6 | .205 | 0.0 | 0.0 | 0 | -0.1 | .195 | 22 | ||||||
| 2025 | Steamer | ROS | 5.3% | 34.3% | 0.16 | .148 | .202 | .233 | .435 | .086 | 3.6 | .204 | 0.0 | 0.0 | 0 | -0.1 | .198 | 23 |
| Season | Team | Level | BB% BB% - Walk Percentage (BB/PA) | K% K% - Strikeout Percentage (SO/PA) | BB/K BB/K - Walk to Strikeout Ratio (BB/SO) | divider | AVG AVG - Batting Average (H/AB) | OBP OBP - On Base Percentage | SLG SLG - Slugging Percentage | OPS OPS - On Base + Slugging Percentage | divider | ISO ISO - Isolated Power (SLG-AVG) | Spd Spd - Speed Score (4 Component Version) | BABIP BABIP - Batting Average on Balls in Play | divider | UBR UBR - Ultimate Base Running in runs above average, does not include SB or CS | wGDP wGDP - Ground into Double Play Runs above average | XBR XBR - Statcast baserunning above average | wSB wSB - Stolen Bases and Caught Stealing runs above average | divider | wRC wRC - Runs Created based wOBA | wRAA wRAA - Runs Above Average based on wOBA | wOBA wOBA - Weighted On Base Average (Linear Weights) | wRC+ wRC+ - Runs per PA scaled where 100 is average; both league and park adjusted; based on wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | HOU | DSL | 16.7% | 19.3% | 0.86 | .174 | .327 | .298 | .624 | .124 | 3.0 | .191 | -0.3 | 17 | -4.8 | .324 | 76 | |||||||
| 2024 | HOU | DSL | 11.3% | 20.5% | 0.55 | .270 | .374 | .497 | .871 | .227 | 5.5 | .299 | 0.2 | 37 | 8.2 | .417 | 126 | |||||||
| 2025 | Steamer | PROJ | 5.3% | 34.3% | 0.15 | .148 | .201 | .232 | .434 | .084 | 3.6 | .205 | 0.0 | 0.0 | 0 | -0.1 | .195 | 22 | ||||||
| 2025 | Steamer | ROS | 5.3% | 34.3% | 0.16 | .148 | .202 | .233 | .435 | .086 | 3.6 | .204 | 0.0 | 0.0 | 0 | -0.1 | .198 | 23 |
