The Giants went through four consecutive losing seasons in 2017-20, matching their longest downturn since World War II, before erupting for a franchise-record 107 victories last year. Beyond that big leap, they're poised for long-term success.

San Francisco's farm system is as deep as it has been in decades and stronger than it has been since Buster Posey, Madison Bumgarner, Brandon Crawford and Brandon Belt were in the Minors in 2009-10 and on the cusp of sparking three World Series championships. The Giants are hitting on all cylinders in terms of prospect acquisition and development.

Many of their best domestic prospects are recent first-round picks: catchers Joey Bart (2018) and Patrick Bailey (2020), right-hander Will Bednar (2021), outfielders Heliot Ramos (2017) and Hunter Bishop (2019). The lone exception is left-hander Kyle Harrison, a 2020 third-rounder who got paid first-round money.

San Francisco's international department assembled a special class in 2018 with shortstop Marco Luciano and outfielders Luis Matos and Jairo Pomares. It added a sneaky-good crop the following year with shortstop Aeverson Arteaga, right-hander Manuel Mercedes, catcher Adrian Sugastey and left-hander Esmerlin Vinicio.

Here's a look at the Giants' top prospects:
1. Marco Luciano, SS (MLB No. 13)
2. Joey Bart, C (MLB No. 31)
3. Luis Matos, OF (MLB No. 63)
4. Kyle Harrison, LHP (MLB No. 75)
5. Will Bednar, RHP
Complete Top 30 list »

Biggest jump/fall
Here are the players whose ranks changed the most from the 2021 preseason list to the 2022 preseason list.

Jump: Ryan Murphy, RHP (2021: NR | 2022: 12) -- Mixing and commanding four pitches, the unheralded 2020 fifth-rounder placed third in the Minors in strikeouts (164), fourth in whiff rate (13.8 per nine innings) and sixth in K/BB ratio (6.3) while reaching High-A in his pro debut.

Fall: Seth Corry, LHP (2021: 5 | 2022: 21) -- After a breakout 2019 season, he saw his mechanics fall apart and walked nearly a batter per inning between High-A and the Arizona Fall League.

Top 30s
NLE: ATL | MIA | NYM | PHI | WSH
ALE: BAL | BOS | NYY | TB | TOR
NLC: CIN | CHC | MIL | PIT | STL
ALC: CWS | CLE | DET | KC | MIN
NLW: ARI | COL | LAD | SD | SF
ALW: HOU | LAA | OAK | SEA | TEX

Best tools
Players are graded on a 20-80 scouting scale for future tools -- 20-30 is well below average, 40 is below average, 50 is average, 60 is above average and 70-80 is well above average. Players in parentheses have the same grade.

Hit: 60 -- Luis Matos
Power: 65 -- Marco Luciano
Run: 60 -- Grant McCray (Aeverson Arteaga, Hunter Bishop, Ryan Reckley)
Arm: 65 -- Adrian Sugastey
Defense: 65 -- Casey Schmitt
Fastball: 70 -- Gregory Santos
Curveball: 65 -- R.J. Dabovich
Slider: 70 -- Gregory Santos
Changeup: 60 -- Nick Swiney
Control: 60 -- Ryan Murphy

How they were built
Draft: 15 | International: 11 | Trade: 3 | NDFA: 1

Breakdown by ETA
2022: 6 | 2023: 16 | 2024: 3 | 2025: 4 | 2026: 1

Breakdown by position
C: 4 | 2B: 1 | 3B: 2 | SS: 4 | OF: 5 | RHP: 10 | LHP: 4