Fantasy MLB: Top 5 Weekly Boom and Bust Players

Our goal with this analysis is to not only tell you who the best players will be, but also tell you who most frequently exceeds their overall rank (boom players) and who comes up short the most frequently (weekly bust). We reviewed the season to identify players who have high boom rates and high bust rates. We are defining a 'boom week' as one where a player's position rank is much better than his overall average weekly rank. Mathmetically, we are using 50% of his average rank. So a player with an average rank of 30 would need to be ranked Top 15 to be considered a boom week. Conversely, a bust week is one where a player's rank is numerically 50% higher than their normal weekly rank.

The shortstop with the highest boom rate is Xander Bogaerts whose per week average rank was #12. He had 10 weeks out of 25 where he delivered a big performance. At the outfielder position, Khris Davis was the leader in boom rate. Lucas Giolito, in an average week, is the #49 starting pitcher but he also has the highest bust rate at the position. In his 26 weeks, 11 were bad, busts. Players like Rick Porcello and Justin Turner are two of 10 players below who appear in both the boom and bust lists. These are the players who you'll want to carefully manage in terms of when to best start or sit because they rarely deliver an 'average' performance. The table below shows the player with the five highest boom and bust rates. The rank is based on the player's average position rank per week and not their season total fantasy points.

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HIGHEST BOOM% STARTING PITCHERSHIGHEST BUST% STARTING PITCHERS
Corey Kluber (#25 SP, 42% 11 of 26 Weeks)Lucas Giolito (#49 SP, 12% 11 of 26 Weeks)
Rick Porcello (#34 SP, 42% 11 of 26 Weeks)Jose Quintana (#40 SP, 26% 11 of 27 Weeks)
Luis Severino (#30 SP, 38% 10 of 26 Weeks)Jake Junis (#43 SP, 20% 10 of 25 Weeks)
Trevor Williams (#36 SP, 38% 10 of 26 Weeks)Rick Porcello (#34 SP, 42% 10 of 26 Weeks)
Marco Gonzales (#37 SP, 38% 9 of 24 Weeks)Trevor Williams (#36 SP, 38% 10 of 26 Weeks)
HIGHEST BOOM% CATCHERSHIGHEST BUST% CATCHERS
Gary Sanchez (#15 C, 50% 10 of 20 Weeks)Evan Gattis (#18 C, 41% 9 of 27 Weeks)
Evan Gattis (#18 C, 41% 11 of 27 Weeks)Austin Hedges (#19 C, 29% 7 of 21 Weeks)
Salvador Perez (#11 C, 39% 9 of 23 Weeks)Tyler Flowers (#22 C, 25% 7 of 24 Weeks)
Francisco Cervelli (#16 C, 32% 8 of 25 Weeks)Mike Zunino (#21 C, 22% 6 of 23 Weeks)
Wilson Ramos (#13 C, 30% 7 of 23 Weeks)Willson Contreras (#15 C, 30% 7 of 27 Weeks)
HIGHEST BOOM% FIRST BASEMENHIGHEST BUST% FIRST BASEMEN
Anthony Rizzo (#12 1B/DH, 38% 10 of 26 Weeks)Jose Abreu (#16 1B/DH, 35% 7 of 23 Weeks)
Jose Abreu (#16 1B/DH, 35% 8 of 23 Weeks)Eric Hosmer (#18 1B/DH, 30% 8 of 27 Weeks)
Nelson Cruz (#14 1B/DH, 35% 9 of 26 Weeks)Josh Bell (#16 1B/DH, 31% 7 of 26 Weeks)
Josh Bell (#16 1B/DH, 31% 8 of 26 Weeks)C.J. Cron (#18 1B/DH, 19% 7 of 27 Weeks)
Jesus Aguilar (#14 1B/DH, 30% 8 of 27 Weeks)Joe Mauer (#18 1B/DH, 25% 6 of 24 Weeks)
HIGHEST BOOM% SECOND BASEMENHIGHEST BUST% SECOND BASEMEN
Jose Altuve (#12 2B, 46% 11 of 24 Weeks)Yoan Moncada (#18 2B, 23% 8 of 26 Weeks)
Whit Merrifield (#13 2B, 37% 10 of 27 Weeks)Neil Walker (#24 2B, 22% 7 of 27 Weeks)
Daniel Murphy (#16 2B, 31% 5 of 16 Weeks)Daniel Murphy (#16 2B, 31% 4 of 16 Weeks)
Jason Kipnis (#16 2B, 30% 8 of 27 Weeks)Yangervis Solarte (#19 2B, 29% 6 of 24 Weeks)
Scooter Gennett (#13 2B, 30% 8 of 27 Weeks)Scooter Gennett (#13 2B, 30% 6 of 27 Weeks)
HIGHEST BOOM% THIRD BASEMENHIGHEST BUST% THIRD BASEMEN
Anthony Rendon (#12 3B, 36% 9 of 25 Weeks)Rafael Devers (#18 3B, 33% 6 of 24 Weeks)
Manny Machado (#10 3B, 33% 9 of 27 Weeks)Miguel Andujar (#15 3B, 30% 6 of 27 Weeks)
Rafael Devers (#18 3B, 33% 8 of 24 Weeks)Justin Turner (#13 3B, 32% 4 of 19 Weeks)
Eugenio Suarez (#12 3B, 32% 8 of 25 Weeks)Evan Longoria (#18 3B, 23% 4 of 22 Weeks)
Justin Turner (#13 3B, 32% 6 of 19 Weeks)Wilmer Flores (#20 3B, 21% 4 of 24 Weeks)
HIGHEST BOOM% SHORTSTOPHIGHEST BUST% SHORTSTOP
Xander Bogaerts (#12 SS, 40% 10 of 25 Weeks)Yairo Munoz (#21 SS, 18% 6 of 22 Weeks)
Didi Gregorius (#13 SS, 40% 10 of 25 Weeks)Brandon Crawford (#19 SS, 26% 7 of 27 Weeks)
Carlos Correa (#17 SS, 32% 7 of 22 Weeks)Freddy Galvis (#16 SS, 15% 6 of 27 Weeks)
Asdrubal Cabrera (#14 SS, 31% 8 of 26 Weeks)Jose Iglesias (#17 SS, 17% 5 of 23 Weeks)
Ketel Marte (#15 SS, 30% 8 of 27 Weeks)Didi Gregorius (#13 SS, 40% 5 of 25 Weeks)
HIGHEST BOOM% OUTFIELDERHIGHEST BUST% OUTFIELDER
Khris Davis (#26 OF, 46% 12 of 26 Weeks)Harrison Bader (#66 OF, 19% 12 of 26 Weeks)
Rhys Hoskins (#35 OF, 44% 12 of 27 Weeks)Franmil Reyes (#63 OF, 33% 8 of 18 Weeks)
Mitch Haniger (#34 OF, 41% 11 of 27 Weeks)Jay Bruce (#59 OF, 28% 8 of 18 Weeks)
Justin Upton (#47 OF, 38% 10 of 26 Weeks)Jon Jay (#59 OF, 26% 12 of 27 Weeks)
Bryce Harper (#31 OF, 37% 10 of 27 Weeks)Matt Kemp (#51 OF, 22% 12 of 27 Weeks)
HIGHEST BOOM% RELIEVERSHIGHEST BUST% RELIEVERS
Wade Davis (#33 RP, 70% 19 of 27 Weeks)Yusmeiro Petit (#80 RP, 26% 13 of 27 Weeks)
Sean Doolittle (#35 RP, 58% 11 of 19 Weeks)Kenta Maeda (#89 RP, 32% 12 of 25 Weeks)
Brad Hand (#47 RP, 56% 15 of 27 Weeks)Blake Parker (#74 RP, 31% 12 of 26 Weeks)
Aroldis Chapman (#35 RP, 54% 13 of 24 Weeks)Seth Lugo (#85 RP, 23% 12 of 26 Weeks)
Cody Allen (#56 RP, 50% 13 of 26 Weeks)Tommy Hunter (#87 RP, 29% 11 of 24 Weeks)
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