Marlins Prospect Weekly: Jaworsky's Three-Homer Surge, Martinez Spins His Best Month
By Eric Simmons ·
Deep Blue Marlins Prospect Weekly covers the last 7 days of action for the Marlins farm system.
Jaworsky's Power Week Scrambles the Scouting Math
Chase Jaworsky (A+, SS, Rank: 31) had the most surprising week in the system. Over 21 plate appearances at Beloit, he went 6-for-18 with three home runs and five RBI, adding three walks. Context: he had six home runs in 259 plate appearances across the full 2026 season before this week. The scouting picture on Jaworsky is a 40 hit and 30 power combination, with his 60 speed and defensive reliability doing most of the carrying. Nothing about that profile predicts a three-homer week at any level, which makes this worth noting without fully knowing what to do with it.
The last 30 days have been the most productive stretch of his professional career: a .373/.450/.706 slash in 60 plate appearances with five home runs, 13 RBI, and a 13.3 percent walk rate at High-A. The contact rate holds at 74.5 percent, right where it has been all year, and the walk numbers are consistent with his profile. What has changed is the over-the-fence output, and the question is whether that reflects a mechanical adjustment, a small-sample heater, or something that will show up going forward. He still profiles as a utility second baseman whose best tools are his legs and his glove. But the last month has at least forced a second look at what the power ceiling might actually be, and a 22-year-old in High-A who has been walking at an 11 percent clip all season has a solid foundation to build on.
Martinez's Last 30 Days Put the Reliever Tag Under Pressure
Liomar Martinez (A+, RHP, Rank: 45) delivered another strong outing this week: seven innings, two hits, two earned runs, one walk, and seven strikeouts against a High-A lineup. He generated 12 swinging misses on 81 pitches. That result fits neatly into what has been a dominant final month of the regular season. Over his last 30 days at Beloit, he is posting a 1.90 ERA and 0.46 WHIP across 23.2 innings with 31 strikeouts, a 36.5 percent strikeout rate against batters faced, and a walk rate that has dropped to 5.9 percent in that span. A pitcher who carried a 5.19 ERA into August now presents a substantial recalibration of what the stuff can do when the command is present.
The season-long picture still includes 57 walks in 102 innings, which is the honest caveat. Martinez is a 45 command grade with a four-seamer sitting 94-97 mph and a curveball that is his best secondary weapon. The changeup grades out at 45, leaving the profile a bit thin for a starter projection. Long reliever is the assigned outcome, and the season total makes that case. But the last four starts look more like a back-end starter candidate than an organizational depth arm: 23.2 innings, six hits allowed, a WHIP under 0.50, and a strikeout rate pushing 37 percent. He is 21 years old, the curveball is a genuine swing-and-miss pitch, and when the walk rate behaves, the stuff is good enough to stay in a rotation. I'd take the over on that long-reliever projection right now. The command needs to hold across a full season to close the argument, but a finish like this one makes the conversation worth having.
Quick Hits
Cam Cannarella (AAA, OF, Rank: 5) · went 8-for-25 with two home runs, a double, three RBI, and four walks across 25 plate appearances at Jacksonville. The slugging has ticked up in Triple-A over the last 30 days, with eight doubles and a .494 slugging mark in 101 plate appearances at that level, even as the power grade sits at 40 and home runs remain secondary to his gap-to-gap approach. A 60 fielder with a 55 hit tool, he has now hit across A+, Double-A, and Triple-A this season to the tune of a combined .338/.439/.542 in 392 plate appearances. The MLB conversation is no longer speculative.
Brandon Compton (AAA, OF, Rank: 22) · earned his first Triple-A promotion on September 2 and responded with 7 hits, two home runs, a double, four RBI, and five walks in 28 plate appearances at Jacksonville. His combined 2026 line now reads 34 home runs and 96 RBI in 515 plate appearances across three levels. The 45 hit tool and 33 percent strikeout rate are real concerns, but the 60 power has been playing all year, and a 40.5 percent swing rate confirms the patience is genuine. He is a corner bat with a high bar to clear for everyday use, and so far he is clearing it.
Aiva Arquette (AA, SS, Rank: 4) · had a productive week at Pensacola, going 8-for-21 with a double, four RBI, a walk, and a hit by pitch. Over his last 30 days at Double-A, he is slashing .338/.377/.451 with two home runs and a 19.5 percent strikeout rate, the lowest strikeout stretch of his Double-A tenure. The 60 power grade has been showing up in flashes all season, with 11 home runs in 262 combined plate appearances. He profiles as a 3B long-term, and the bat is making a reasonable argument for advancement.
Deyvison De Los Santos (MLB, 3B, Rank: 33) · was recalled by Miami on September 3, going 2-for-12 at Triple-A this week with two home runs and two RBI in limited time before the move. His last 30 days at Jacksonville were the strongest stretch of his season: a .317/.377/.730 slash with eight home runs in 69 plate appearances. The 60 raw power has always been the carrying tool, and he has 21 home runs on the season, up from 12 at Triple-A all of last year. The defensive limitations keep first base or DH as the realistic destination, but the bat is making that case emphatically.
Nate Payne (A+, LHP, Rank: 43) · threw five innings of three-hit, scoreless ball with seven strikeouts and 13 swinging misses at Beloit, a clean result for a lefty still working through a 10.3 percent walk rate on the season. Over his last 30 days, his ERA sits at 2.63 across 24 innings with 33 strikeouts. He is a 45 command, 45 slider profile with a #5 starter projection, and the recent run suggests the command is at least stabilizing. A full healthy season in 2027 at Double-A would tell us a lot.
Brendan Jones (AAA, OF, Rank: 26) · had the most efficient week among the Jacksonville outfielders: 5-for-12 with a home run and two RBI in 12 plate appearances. Over his last 30 days at Triple-A, he is slashing .283/.358/.517 with four home runs and 44 stolen bases on the season across both levels. The bench projection is honest given the 40 power grade, but the 65 speed is a genuine asset and he is handling Triple-A contact rates better than the Double-A second half suggested he would.
Max Williams (AA, DH, Rank: 41) · was promoted to Pensacola on September 3 and went 2-for-5 with a home run and an RBI in his first look at Double-A. He slashed .305/.353/.568 with seven home runs across 102 plate appearances at Beloit, so the transition has started cleanly. He has nine home runs combined across three levels this season as a 22-year-old DH, and the power has played at every stop.
Jared Serna (MLB, SS, Rank: 56) · was recalled by Miami on August 31 for his first big-league look. He appeared in limited action early and is 1-for-5 in seven plate appearances at the MLB level. His Triple-A line this year sits at .221/.303/.378 with 12 home runs in 336 plate appearances, which is a modest foundation for a September callup, but the speed and defensive versatility make him a useful depth piece at the end of the roster.
Jacob Lombard (A, SS, Rank: 3) · had a rough week at Jupiter, going 2-for-18 with one double, one RBI, two walks, and 10 strikeouts in 18 plate appearances. The strikeout rate is the part of the profile that everyone is watching: he is punching out in 40.6 percent of plate appearances on the season, and his last 30 days show a 42.5 percent rate in 87 trips. The 18-year-old profile includes a 60 power grade and 65 speed, and those tools are real, but the contact is the developmental question mark right now and a week like this puts it in sharp focus. He has the makeup and athleticism to make adjustments; this is the struggle that A-ball is supposed to surface.
Jonathon Long (AAA, 1B, Rank: 9) · finished 3-for-19 at Jacksonville with a double, two RBI, and three walks this week. The walks are consistent with his profile, he is running a 21.3 percent walk rate at Jacksonville this season, but three hits across 19 plate appearances is a result for a player with a 55 power grade and a solid Triple-A track record. He posted a .283/.364/.455 line with 12 home runs across 452 plate appearances at Iowa earlier this year before joining Jacksonville, so the underlying tools are there. A couple of soft weeks at the end of the year do not reshape the projection.
Karson Milbrandt (AAA, RHP, Rank: 10) · turned in a difficult outing this week: 7.2 innings with eight hits, eight earned runs, seven walks, and 10 strikeouts against a Triple-A lineup. The 25 swinging misses show the stuff is live, but the control deserted him entirely. Over his last 30 days at Jacksonville, he owns a 12.42 ERA and 2.52 WHIP in 16.2 innings, with 19 walks in that span. The season-long ERA at Triple-A sits at 8.67, a stark contrast to the 1.34 ERA he posted across nine Double-A starts. The 95-98 mph fastball and plus slider are still there on paper; the 45 command grade is the part of the report that explains the current results. A mid-rotation ceiling still exists if the delivery syncs, but this Triple-A stretch is a real obstacle.