Jack Postma

Thank you @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 👤 prepbsbl.com/3MSH87u

𝐏𝐫𝐞𝐬𝐞𝐚𝐬𝐨𝐧 𝐏𝐨𝐰𝐞𝐫 𝟐𝟓: 𝐍𝐨. 𝟐𝟒 𝐁𝐚𝐫𝐫𝐢𝐧𝐠𝐭𝐨𝐧 + The Broncos bring back a strong pitching staff paired with promising young bats in 2026. @bhsbleacher 📝: prepbsbl.com/4bagyPu

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 👤 prepbsbl.com/3MSH87u

Off season Bullpen @PaulBelo2 @RaysIllinois @PrepBaseballIL @loganschmitt88 @bhsbleacher

Boys just secured a Plyo Wall! #armcare

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 🔗: loom.ly/bHh0Cbs

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

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 👀 📊: loom.ly/GQJHc_A

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

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

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

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

Top 15 in the country 🤫

@RaysIllinois filling up this list! Bunch of dawgs 😤 @carver_cohn @JackPostma44 @TommyGasner @govoni_alex

Thank you @CoachMoose31 and @DukeBASE for an absolutely amazing experience and time and the prospect camp this past weekend. Hoping to be back soon. Below is my outing from the camp Editing creds: @toastyy_edits

Thank you @PrepBaseballIL for these great two events and write ups to wrap up the summer season. @PeterHamot13 @TyDeffy @PB_Uncommitted @RaysIllinois

The 2025 Illinois State Games is complete ✅ Thank you to all the players, parents and coaches for making this event a special one. #ILStateGames

Strong upside look at RHP Jack Postma (Barrington, 2028). FB: 81-84 mph CB: 70-72 mph CH: 72-75 mph Well-proportioned, projectable 6-foot-3, 186-pound frame.

𝐌𝐢𝐝𝐰𝐞𝐬𝐭 𝐒𝐮𝐩𝐞𝐫 𝐒𝐨𝐩𝐡𝐨𝐦𝐨𝐫𝐞 𝐆𝐚𝐦𝐞𝐬: 𝐆𝐚𝐦𝐞 𝐑𝐞𝐜𝐚𝐩𝐬 📝 + Recapping the day 3️⃣ action for Team Illinois at the #MidwestSuperSophs, as they went undefeated and took home the Midwest Super Sophomore title. + Notes, video, and stat-lines, within.👇 🔗: loom.ly/QYZIWbA