Statcast spotlight: Who can stop Zim?

Using revolutionary Statcast™ data, here are five players to keep an eye on tonight. Watch it all on MLB.TV.
Ryan Zimmerman
7:05 p.m. ET -- Nationals at Orioles
Who can stop Zimmerman? The Nationals first baseman crushed two more balls on Saturday night against the Phillies: a 105.1-mph, 411-foot home run off Vince Velasquez, and a 110.7-mph double that Michael Saunders lost in the lights at Citizens Bank Park but was still the hardest-hit ball of the game. Both of those hits were barrels -- the most dangerous types of batted ball, which produce an expected batting average of at least .500 and an expected slugging of at least 1.500 -- bringing Zimmerman's season total to 18, most in the Majors.

Most barreled balls in 2017
1. Zimmerman: 19

2. Aaron Judge: 18
   3 (tie). Khris Davis: 17
   3 (tie). Freddie Freeman: 17
   5 (tie). Manny Machado: 15
   5 (tie). Nick Castellanos: 15
   Carlos Martínez
   7:10 p.m. ET -- Cardinals at Marlins
   Martinez has worked through an up-and-down start to 2017, but one area in which he has consistently excelled is putting away hitters when he gets the chance. Opponents have gone just 7-for-73 (.096) against Martinez when he gets two strikes in the count -- the fourth-best two-strike opponents' average of any big league starter. Part of Martinez's success in those situations stems from the contact he induces -- 46.7 percent of the balls put in play against him with two strikes have been hit on the ground.

Lowest batting average allowed on two-strike counts in 2017 (minimum 50 two-strike at-bats)

1. Carlos Carrasco: .081 (6-for-75)
   
2. Max Scherzer: .089 (8-for-90)
   
3. Chris Sale: .096 (11 for 114)
   4. Martinez: .096 (7-for-73)
   Matt Moore
   7:10 p.m. ET -- Giants at Mets
   Moore entered his start against the Dodgers last Wednesday already sporting the league's highest average exit velocity allowed at 91.3 mph, and things only got worse. Six of the 10 tracked batted balls Moore allowed to Los Angeles were hit with exit velocities of at least 95 mph (a baseline for "hard-hit" contact), including three barrels. The overall average exit velocity of the Dodgers' 10 batted balls against Moore was 94.1 mph, which included the two hardest-hit balls the lefty has allowed this year.
   Highest average exit velocity allowed in 2017 (minimum 50 batted balls)
   1. Moore: 91.6 mph
   
4. Dylan Covey: 90.9 mph
   
5. Héctor Santiago: 90.7 mph
   
6. Ricky Nolasco: 90.4 mph
   
7. Phil Hughes: 90.3 mph
   Highest percentage of batted balls allowed with at least 95 mph exit velocity in 2017 (minimum 50 batted balls)
   
8. Robbie Ray: 50.6 percent
   2. Moore: 49.5 percent
   
9. Matt Garza: 46.3 percent
   
10. Trevor Bauer: 46.2 percent
    
11. Velasquez: 45.7 percent
    Martín Maldonado
    10:05 p.m. ET -- Angels at Athletics
    Angels fans might not have known that they were getting one of the Majors' strongest backstop arms when the team traded fellow catcher Jett Bandy to the Brewers for Maldonado this past December. But those who have watched the Halos regularly in 2017 certainly know about Maldonado's arm now. In his first season as a starting catcher, the 30-year old Maldonado has posted the second-highest average arm strength on "max-effort" throws (or throws at or above his 90th percentile of effort) among big league backstops.

Highest average arm strength for catchers on "max-effort" throws in 2017 (minimum five max-effort throws)

1. Willson Contreras: 87.8 mph
   2. Maldonado: 87.2 mph
   
2. J.T. Realmuto: 86.1 mph
   4 (tie). Austin Hedges: 85.7 mph
   4 (tie). Cameron Rupp: 84.1 mph
   Cody Bellinger
   10:10 p.m. ET -- Pirates at Dodgers
   Bellinger is arguably the hottest hitter in baseball after clubbing five homers and driving in 14 runs through his first 11 games in the Majors. Adjusting to big league fastballs has been no problem for Bellinger, who's swung at 57 percent of the four-seamers, two-seamers and sinkers he's seen so far. All those reps for Bellinger's swing against opposing heat is paying off nicely, as his 1.095 slugging percentage against those three types of fastballs ranks as the best in the Majors since April 25 (Bellinger's debut).

Highest slugging percentage vs. fastballs since April 25 (minimum 20 at-bats vs. fastballs)
1. Bellinger: 1.095
2.. Tim Beckham: 1.050

3. Jay Bruce: 1.1545
   4 (tie). Kris Bryant: 1.000
   4 (tie). Adam Duvall: 1.000