Minor League roundup, June 16: Another day, another Bo Davidson dinger

All seven of the San Francisco Giants Minor League Baseball affiliates were in action on Tuesday. Here’s what happened!

Link to the 2026 McCovey Chronicles Community Prospect List (CPL)

All listed positions in the roundup are the position played in that particular game.

Sacramento River Cats beat the Oklahoma City Comets (Dodgers) 10-1
Box score

RHP Tyler Mahle began his rehab assignment on Tuesday, a few days later than planned (Mahle was supposed to begin his rehab on Sunday, but that game was rained out, and Monday was an off-day). Rehab assignments are all about ramping up and feeling healthy, so we’ll try to overlook the fact that Mahle was not very sharp. He only threw 33 of 63 pitches for strikes, while walking 5 batters in just 3 innings. He wasn’t particularly hittable, admittedly, as he only gave up 1 hit and 1 run, with 3 strikeouts, but still not the most encouraging outing. With RHP Trevor McDonald (No. 12 CPL) struggling, and Mahle being a player who could be moved at the deadline, it seems likely that he’ll be back in the MLB rotation soon.

Also rehabbing was RHP Jason Foley, who pitched a perfect inning while throwing 8 of 10 pitches for strikes. Foley has pitched well in his rehab, though he had it hit the pause button when his arm struggled to recover from back-to-back outings. Now he’s rehabbing again, and could be helping the MLB bullpen soon.

RHP Carson Seymour, like Mahle, struggled with command, issuing 3 walks in 3 innings, though he gave up just 1 hit and 0 runs, while striking out 3. Seymour hasn’t looked particularly good in AAA (3.81 ERA, 4.70 FIP) or in the Majors (14.54 ERA, 6.56 FIP) this year. Already 27 years old, it’s fair to wonder if the Giants are thinking of moving on at some point.

LHP Juan Sánchez (No. 41 CPL) hasn’t had a very good season either, but has been really strong since returning from an unofficial (I believe) stint on the Development List. He was dominant in the 9th inning of this game, throwing 8 of 9 pitches for strikes in a perfect frame, while striking out 2. I’m still optimistic that we see him in the San Francisco bullpen in the second half of the season.

A lot of good days on offense. The hits just keep coming for second baseman Nate Furman (No. 39 CPL), who hit 4-6 with a double, a stolen base, and an error. Furman, a 24-year old lefty acquired in the Alex Cobb trade, has been living up to his billing as a contact maven in his debut AAA stint. He’s up to a .292 batting average and just a 12.5% strikeout rate, with a sensational 3.9% swinging strike rate … a mark that ranks 2nd out of 54 Pacific Coast League hitters with at least 200 plate appearances … and 3rd out of 674 Minor League hitters across all leagues and levels (min: 200 PA). It does seem logical to conclude that the Giants might want Furman to slide right into Luis Arráez’s spot when Arráez is inevitably traded, though for now that spot seems to be Casey Schmitt’s to take.

In total, Furman has an .804 OPS, a 115 wRC+, and 10 stolen bases in 14 attempts.

The big hit belonged to third baseman Thomas Gavello, who hit 1-4 with a 3-run home run, a walk, a strikeout, and 4 runs driven in. Gavello is still trying to get off the interstate, and right now his biggest strength is that he plays all over the diamond and is a fantastic clubhouse guy. But we shouldn’t forget that there’s quite a bit of talent there, too! Sometimes it just comes out late.

First baseman Jake Holton had a good but painful day, going 0-1 but drawing a walk and getting hit 3 times. Left fielder Jared Oliva continued his rehab and went 2-5 with a walk, a stolen base, and a strikeout, while center fielder Turner Hill stated his case for that sort of a role, hitting 2-5 with a stolen base and an outfield assist.

Catcher Jesús Rodríguez (No. 16 CPL) and designated hitter Drew Cavanaugh (No. 19 CPL) drew to a draw in their race to be next man up behind the dish in San Francisco, as both players had a pair of singles and a walk.

Richmond Flying Squirrels lost to the Chesapeake Baysox (Orioles) 8-4
Box score

A fairly uninteresting day on either side of the diamond, save for big days from a pair of hitters: center fielder Bo Davidson (No. 4 CPL) and first baseman Sabin Ceballos (No. 43 CPL).

Davidson continued his June dominance. He only hit 1-4, but the hit was a 2-run home run, he didn’t strike out, and he continued his stellar defensive year with an outfield assist at third base.

After a rough May that featured just 1 home run and a ton of strikeouts, the soon-to-turn 24-year old has spent June regaining any top prospect status that he had risked losing. He’s hit safely in 12 of the 13 games he’s played in this month, with the only exception being the weather-shortened game that ended in the 5th inning. In total, he’s hit a staggering 18-48 with 7 home runs in June, while striking out just 10 times. That’s given him not just an .854 OPS and a 120 wRC+ on the season, but has also put him in 1st place on the Giants farm system home run leaderboard. If he keeps this up, we’ll almost certainly see him in AAA by the end of the year, especially since he’s going to be Rule 5 eligible this winter.

As for Ceballos, who came to the Giants in the Jorge Soler trade, he showed off his power, hitting 1-2 with a 2-run home run and 2 walks.

Ceballos, a 23-year old taken in the 3rd round in 2023, is repeating AA, and is once again struggling with his batting average, which is just .228 after being .232 a year ago. But he’s found some of the power he lost last year … he now has 7 home runs on the season, surpassing last year’s total while barely having half as many plate appearances. He only has a .734 OPS and a 99 wRC+, but with his decent power, his ability to avoid strikeouts, and his excellent defense at both corners of the dirt, there’s something exciting there if he can just find a way to get more hits.

Tough days for a pair of exciting players who are going through rough patches: left fielder Parks Harber (No. 17 CPL) and shortstop Maui Ahuna (No. 33 CPL). Harber, who missed the start of the season due to injury, but was red hot when he got started, went 0-3 with a walk, 2 strikeouts, and an error. In his last 12 games, Harber is hitting just 8-43 with 0 home runs, 3 doubles, 9 walks, and 20 strikeouts, which has brought him down to an .871 OPS and a 130 wRC+ … still fantastic numbers! Ahuna went 0-4 with 2 strikeouts, as the contact concerns continue to rear their heads. Ahuna has hit a lowly 5-39 with 21 strikeouts in June, and now has a .674 OPS and an 81 wRC+. The bigger concern, however, is the 36.5% strikeout rate and the 18.6% swinging strike rate … numbers that rank 102nd and 99th, respectively, out of 104 Eastern League hitters with at least 150 plate appearances this season.

Not a good pitching day, though RHP Mitch White tossed a perfect inning, which was great to see since he’s been struggling quite a bit. LHP Greg Farone continued to have a hard time adjusting to AA, as the 2024 7th-rounder gave up 7 hits, 2 walks, and 3 runs in 5 innings of action, while striking out just 3 batters. June has been a tiny bit better to Farone than the rest of the year, as he has a 5.14 ERA in the month, after ERAs in the 6s in the prior 2 months. The recently-turned 24-year old has a very interesting profile and could really develop into something exciting, but right now he’s not really doing anything well from a results standpoint: he has a 6.15 ERA, a 6.40 FIP, 8.5 strikeouts per 9 innings, and 5.1 walks.

Eugene Emeralds beat the Tri-City Dust Devils (Angels) 10-6
Box score

In the Northwest League, however, there was a highly encouraging starting pitching performance, as RHP Niko Mazza took the mound for the Emeralds and struck out 7 Dust Devils in 5 innings of work, while allowing just 5 baserunners. It wasn’t a flawless performance, as 3 of the 5 baserunners he allowed (2 singles and a hit batter) came to the first 3 batters he faced. That, combined with a sacrifice fly, put 2 runs on his ledger. But he recovered to retire 15 of the next 17 batters he faced, with only a pair of walks reaching base.

Mazza, a 23-year old who was taken in the 8th round in 2024, has settled in fairly nicely with Eugene, where he has a 3.06 ERA and has struck out 11.3 batters per 9 innings. He’s had an issue with walks (5.9 per 9), which has led to a slightly bloated FIP (4.27), but it’s been a very strong 2nd season in the pros.

RHP Matt Dunaway made his 2nd appearance since getting returned to Eugene following an injury and a rehab appearance, and he tossed 2 perfect innings with 1 strikeout. LHP Esmerlin Vinicio, unfortunately, had a bad outing for one of the only times this year, ceding 8 baserunners and 4 runs in 2 innings … after having given up just 3 runs in 29.2 innings entering the game.

On offense, designated hitter Carlos Gutierrez (No. 18 CPL) once again showed off the massive power leap he’s made this year, hitting 2-5 with a home run, a strikeout, and 3 runs batted in. Anyone who has been reading this roundups is aware that Gutierrez, one of the best hitters for average in all of the Minors last year, has given up some of that this season in pursuit of more power, and this was the latest example. The 21-year old lefty now has 7 home runs in 51 games with High-A … after just 3 in 85 games across the DSL, ACL, and Low-A.

There’s room for the batting average to come up for Gutierrez, as it’s just .263 right now. The low strikeout rate (18.9%) and decent speed certainly suggests that Guttierez can get that number a lot closer to .300 eventually. But for now, with the power increase, it’s still good for a .823 OPS and a 123 wRC+, and given Gutierrez’s age and inexperience, that’s really impressive.

Funnily enough, of Eugene’s 5 extra-base hits, 3 of them were triples, and they came from a trio of good prospects who had nice days: right fielder Trevor Cohen (No. 15 CPL) went 3-6 though he was caught stealing; center fielder Dakota Jordan (No. 5 CPL) hit 2-5 with a stolen base and a strikeout; and left fielder Lisbel Diaz (No. 32 CPL) went 2-5, albeit with 2 strikeouts.

First baseman Jakob Christian (No. 40 CPL) continued his absurd streak of walk-drawing, as he went 1-1 and drew 4 walks. Christian has now drawn 9 walks in his last 4 games, boosting his walk rate to 13.6% on the year, with an .859 OPS and a 134 wRC+. His strikeout rate, however, remains a very high 30.3%.

San Jose Giants lost to the Lake Elsinore Storm (Padres) 2-1
Box score

A very funny pitching performance from RHP Keyner Martinez (No. 10 CPL). Martinez has put his strength and his concern fully on display this year: strikeouts and walks, respectively. And that was true to an extreme on Tuesday, when he struck out 6 batters in just 4 innings … but walked 7.

Remarkably, despite giving up 11 baserunners in those 4 innings (he also hit a batter, and gave up a home run and 2 singles), Martinez was only tagged for 2 runs, and just 1 earned run. Just a strange game for the 21-year old from Venezuela.

Martinez has proved mostly unhittable this year, as he’s given up just 32 hits in 45.1 innings … with 73 strikeouts. His 14.5 strikeouts per 9 innings ranks 3rd out of the 509 Minor Leaguers with at least 40 innings thrown this year, and if you want to know why he’s emerged as arguably the top pitching prospect in the organization, well … that’s why! But if you want to know what’s keeping him from more success — such as a promotion, or a spot on a top 100 list — it sits with the 6.0 walks per 9 innings, which needs to be addressed in a big way.

Nice bullpen games from the 2 relievers who pitched, RHPs Alix Hernandez and Garrett Langrell. Both pitchers gave up 3 baserunners and 0 runs, with 3 strikeouts; Hernandez while pitching 3 innings, and Langrell while pitching 2. Both players have strong strikeout numbers this year, but haven’t been able to make the total package work.

A nothing-burger on offense, with the Baby Giants mustering just 4 hits on the day. Shortstop Lorenzo Meola (No. 23 CPL) had perhaps the best day, hitting 1-3 with a double, a stolen base, and a strikeout. Meola is still trying to overcome his slow start to the year, but last year’s 4th-round pick has been playing quite well lately, and seems to be enjoying getting to play shortstop regularly with Jhonny Level (No. 3 CPL) promoted to High-A.

ACL Giants lost to the ACL D-backs 5-4 (7 innings)
Box score

Not the most interesting game, but a few nice performances, especially on offense. Second baseman Anthony Marquez, a 19-year old in his 1st season stateside, hit 1-3 with a double, a walk, and a stolen base. After a pair of strong seasons in the DSL, Marquez has struggled a bit to adapt to the ACL, and has just a .673 OPS and a 78 wRC+. He’s still drawing a ton of walks, like always (15.9% walk rate), but is having a hard time hitting for average … he’s at just .216 for the year, after boasting a .279 average in 2024, and a .276 average last year. He does have 6 stolen bases though, and some strong defense.

Designated hitter Yosneiker Rivas, a 20-year old in his 1st ACL season after 3 years in the DSL, hit 2-2 with a double and a walk. The lefty from Venezuela has adapted very well to stateside ball, as he’s hitting for average (.343), drawing walks (16.7%), and limiting strikeouts (19.0%). He’s not hitting for much power at all, but the hits and walks have given him an .881 OPS and a 130 wRC+.

As for the big name prospects, recently-returned first baseman/DH Reggie Crawford didn’t play, while shortstop Josuar González (No. 2 CPL) remains sidelined with a hamstring injury. Shortstop Luis Hernández (No. 6 CPL) hit 0-3 with a walk and a strikeout.

DSL Giants Black beat the DSL Mets Orange 4-1
Box score

A trio of hitters who reached base a bunch in this game. Center fielder Djean Macares, an 18-year old in his 2nd season, went 0-2, but drew 3 walks and stole 2 bases. Just as was the case in his debut last year, Macares — who was arguably the team’s 2nd-biggest signing last year after Josuar González (No. 2 CPL) — is doing a tremendous job of limiting strikeouts, but having a hard time doing damage with the bat. He has just an 8.9% strikeout rate this year, with a tremendous 19.6% walk rate … but has only a .233 batting average and a .070 isolated slugging, resulting in a .702 OPS and a 90 wRC+.

Designated hitter Diego Villegas hit 1-2 and drew 2 walks while getting caught stealing. A good game, but unfortunately the 22-year old has been unable to separate himself from the pack in his 6th DSL season. And catcher Diego Alambarrio, an 18-year old in his 2nd season, had a painfully successful game, hitting 0-1 but getting hit 3 times. He’s already been hit 7 times in his career, despite playing just 17 games. Catchers! They’re built different!

A really nice start by RHP Santiago Guerrero, an 18-year old from Mexico who is a member of the team’s very small signing class this year. Guerrero is an intriguing prospect, and in his 3rd professional game tossed 4 shutout innings with 5 strikeouts and 0 walks, while giving up just 3 singles. Very impressive stuff. He’s been excellent in 2 games, while having a dud sandwiched between them.

LHP Hector Dos Santos tossed 2 perfect innings with a strikeout. Through 4 games this year, the 20-year old in his 2nd season has given up just 3 baserunners and 0 runs in 4.1 innings.

DSL Giants Orange beat the DSL Mariners 9-8 (10 innings)
Box score

Despite the gaudy run total, the Giants Orange squad had just 1 extra-base hit on the day. Welcome to the DSL!

A few players had nice offensive games though: center fielder Jose Valdez, a 17-year old in his debut season, hit 2-3 with a walk, raising his OPS to .807 and his wRC+ to 97; first baseman Albert Jimenez, a 19-year old in his 3rd season, went 2-5 with a double and a strikeout, giving him a whopping 1.293 OPS and 180 wRC+; shortstop Jonathan Valle, an 18-year old debuting player, hit 1-3 with 2 walks, a stolen base, and a strikeout, and now has a .669 OPS, a 58 wRC+, and 3 stolen bases; second baseman Yeison Oviedo, an 18-year old in his 2nd season, hit 0-2 but drew 3 walks and stole a base, moving his OPS to .845 and his wRC+ to 116, with 2 stolen bases; and left fielder Angelo Ugueto, a 17-year old who was signed in January, hit 3-4 with a strikeout, bumping his OPS to .754 and his wRC+ to 96.

A pair of players pitched really well: RHPs Fernando Estrella and Abraham Utrera. Estrella, a 23-year old who is pitching for the first time since 2022, threw a perfect inning with 2 strikeouts in his 2nd appearance of the season. Utrera, a 21-year old in his 2nd season, gave up a hit and a walk in 2 shutout innings, with 3 strikeouts. He has 16 strikeouts in 9 innings this year.

13 — Bo Davidson — [AA]
7 — Sabin Ceballos — [AA]
7 — Carlos Gutierrez — [High-A]
5 — Thomas Gavello — [AAA]

Sacramento: 4:05 p.m. PT at Oklahoma City (SP: Matt Wilkinson)
Richmond: 3:35 p.m. PT at Chesapeake (SP: Charlie McDaniel)
Eugene: 7:05 p.m. PT at Tri-City (SP: Tyler Switalski)
San Jose: 1:00 p.m. PT vs. Lake Elsinore (SP: Jordan Gottesman)

Reminder that almost all MiLB games can be watched on MLB TV.