Jack Postma

Jack Postma 2028 Barrington, IL. 6’5 200lbs. Baseball-RHP/1B. GPA 3.9. [email protected] IG- @Jack_Postma40 NCAA ID# 2508697289

[Prep Baseball Illinois @PrepBaseballIL]

Earlier From Barrington:

Strong performance on the mound from RHP Jack Postma (2028). Missed barrels throughout while throwing 68% strikes.

FB: 88-90 T91 mph, natural run
CH: 77-78, fade
SL: 75-77 mph, lands, S/M traits

Final line: 7 IP, 6 H, 3 ER, 0 BB, 9 K

@ShooterHunt

[Prep Baseball Illinois @PrepBaseballIL]

Impressive look at RHP Jack Postma (@bhsbleacher, 2028).

6-5 | 200 pounds

Consistently kept hitters off balance to earn a no-hitter w/ six strikeouts in the MSL Championship.

FB: 87-90 mph early; settled at 85-88 mph
SL: 73-75 mph; S/M
CH: 76-79 mph; fade

@ShooterHunt

[Prep Baseball Illinois @PrepBaseballIL]

FINAL from Barrington:

RHP Jack Postma (2028) completes the no-hitter to give @bhsbleacher a 5-1 victory in the MSL Championship.

More to come from this one.

[Prep Baseball Illinois @PrepBaseballIL]

RHP Jack Postma (@bhsbleacher, 2028) has one of the highest upsides in the class.

Catch the full episode with the links in the comments.

#TheBullpen | @JackPostma44

📺https://t.co/LujVloWXTf

[Prep Baseball Illinois @PrepBaseballIL]

Hard to ignore the upside of RHP Jack Postma (@bhsbleacher, 2028)

FB T89 on a brisk day, settled in 86-88 mph and was still touching 87 into the sixth. Developing feel on SL, flashed 2-plane action, 71-72 mph.

No. 3 in IL and No. 82 in 🇺🇸

@ShooterHunt | @prepbaseball

[Jack Postma @JackPostma44]

Thank you @PrepBaseballIL

[Prep Baseball Illinois @PrepBaseballIL]

𝐈𝐥𝐥𝐢𝐧𝐨𝐢𝐬 𝐂𝐥𝐚𝐬𝐬 𝐨𝐟 𝟐𝟎𝟐𝟖 𝐑𝐚𝐧𝐤𝐢𝐧𝐠𝐬 𝐔𝐩𝐝𝐚𝐭𝐞 🔁

+ Updating our class of 2028 rankings after an eventful winter circuit.

+ 4️⃣0️⃣ names making their rankings debut with some other movement throughout.

🔗: https://t.co/QmCrYuBGnK

[Prep Baseball Illinois @PrepBaseballIL]

RHP Jack Postma (@bhsbleacher, 2028) is a high-level, high-upside arm in Illinois’ sophomore class. He’s currently a top-100 prospect in the country, and ranked No. 3 in the state.

@gavinsmith_23 | @JackPostma44 | @ShooterHunt

👤 https://t.co/0rxfv6ygxT

[Prep Baseball Illinois @PrepBaseballIL]

𝐏𝐫𝐞𝐬𝐞𝐚𝐬𝐨𝐧 𝐏𝐨𝐰𝐞𝐫 𝟐𝟓: 𝐍𝐨. 𝟐𝟒 𝐁𝐚𝐫𝐫𝐢𝐧𝐠𝐭𝐨𝐧

+ The Broncos bring back a strong pitching staff paired with promising young bats in 2026.

@bhsbleacher

📝: https://t.co/SuDvvEdqZW

[Prep Baseball Illinois @PrepBaseballIL]

𝗣𝗿𝗲𝘀𝗲𝗮𝘀𝗼𝗻 𝗔𝗹𝗹-𝗦𝘁𝗮𝘁𝗲 𝗨𝗻𝗱𝗲𝗿𝗰𝗹𝗮𝘀𝘀: 𝗦𝗽𝗼𝘁𝗹𝗶𝗴𝗵𝘁𝘀 ⭐

RHP Jack Postma (Barrington, 2028) has one of the highest upsides in the state's sophomore class.

◾ 6-foot-5, 200-pounds
◾ FB: 89-90 mph, T91
◾ SL: 73-77 mph, avg. -13.6" HM
◾ CH: 76-81 mph, avg. 17.9" HM
◾ SNK: 89-91 mph

👤 https://t.co/Gld8ZmHd2V

[Jack Postma @JackPostma44]

Off season Bullpen

@PaulBelo2
@RaysIllinois
@PrepBaseballIL
@loganschmitt88
@bhsbleacher

[Bronco Baseball @bhsbleacher]

Boys just secured a Plyo Wall! #armcare

[Prep Baseball Illinois @PrepBaseballIL]

𝟐𝟎𝟐𝟖 𝐑𝐚𝐧𝐤𝐢𝐧𝐠𝐬 𝐔𝐩𝐝𝐚𝐭𝐞 🚨

After an eventful fall circuit, it's time for one final update before we head into the winter season.
◼️ Expanding the rankings to 6️⃣0️⃣
◼️ Shake up in the 4️⃣0️⃣s

🔗: https://t.co/nEOGeQqMQ5

[Jack Postma @JackPostma44]

Thank you @prepbaseball & @PrepBaseballIL for the updated rankings and the chances this year at your showcase and tournaments. Looking forward to next year!

@PeterHamot13 @TyDeffy @DrewLocascio @ShooterHunt

[Prep Baseball @prepbaseball]

𝐂𝐥𝐚𝐬𝐬 𝐨𝐟 𝟐𝟎𝟐𝟖 𝐑𝐚𝐧𝐤𝐢𝐧𝐠𝐬: 𝟮𝟱 𝗠𝗮𝗿𝗾𝘂𝗲𝗲 𝗥𝗶𝘀𝗲𝗿𝘀 📈

Prep Baseball VP of Scouting @ShooterHunt highlights 2️⃣5️⃣ names in the 2028 class who took major steps forward in the latest overall rankings 👀

📊: https://t.co/SnV1G7KAxM

[Jack Postma @JackPostma44]

I will be pitching tomorrow Friday October 3 for GRB National in Florida. Grateful for the opportunity and excited to compete with the team.

[Perfect Game Illinois @PG_Illinois]

Jack Postma (‘28, IL) w/ a live arm in this look. FB has a ton of sink (84-87) to open. Held for the duration. Lived low in the zone, secondaries had manipulated shape. #ChampionsCup @GRBRays

[Prep Baseball Scouting @pbtscouting]

RHP Jack Postma (Barrington, 2028) impressed in his start this evening.

Mostly fastballs at 85-86 T87 mph, flashed a curveball and changeup.

#PBRatTheRock | @PrepBaseballIL

[GRB Rays-Illinois @RaysIllinois]

2027 Grads “Black” pitching rotations for PBR Fall Championship at “The Rock”
@PBRTournaments

[Cody Freund @Cody_Freund9]

Top 15 in the country 🤫

[Cody Freund @Cody_Freund9]

@RaysIllinois filling up this list! Bunch of dawgs 😤

@carver_cohn @JackPostma44 @TommyGasner @govoni_alex