Diamondback Kings Island Stats: Height, Speed & Drop

Few moments in a theme park day stop foot traffic like Diamondback’s splashdown. A 32-passenger train crests a 230-foot lift, hurtles down a 215-foot drop at 74 degrees, tears through airtime hills at 80 mph — and then, in its final seconds, skims a water trough and erupts a wall of spray into the Ohio sky. Spectators on the pedestrian bridge above that trough never stand a chance.

Opened April 18, 2009, Diamondback was the first Bolliger & Mabillard (B&M) roller coaster ever built at Kings Island and the first hyper coaster anywhere in the world to include a splashdown finale. It cost $22 million — the largest single ride investment the park had made at the time — and it carried its millionth rider within three months of opening. More than fifteen years later, it’s still one of the most decorated hyper coasters in North America, and the numbers below answer every version of “how fast,” “how tall,” and “do you get wet” that first-time riders ask.

Quick Answer

Diamondback is a 230-foot Bolliger & Mabillard hyper coaster at Kings Island in Mason, Ohio. Its first drop is 215 feet at a 74-degree angle, and it tops out at 80 mph. The ride runs about 3 minutes across 5,282 feet of track and finishes with a splashdown that throws water roughly 50 feet into the air. Riders themselves stay mostly dry; it’s the pedestrian bridge crossing directly over the water trough where spectators get soaked.

Diamondback Stats at a Glance

How Fast Does Diamondback Go?

Diamondback’s top speed is 80 mph (130 km/h), reached at the bottom of the first drop and carried through the opening stretch of airtime hills. That puts it in the same speed class as other B&M hypers like Behemoth at Canada’s Wonderland and its near-twin, Mako, at SeaWorld Orlando, though it’s since been overtaken as Kings Island’s fastest ride by Orion, the park’s 91 mph giga coaster.

Speed bleeds off gradually as the train works through the layout, but the mid-course brake run holds only light trim, so the second half still carries real momentum into the hammerhead turn and the return-leg hills before the splashdown finale slows the train the rest of the way.

Diamondback’s Drop Height and Angle

The signature first drop measures 215 feet at a steep 74-degree angle — sharper than most hyper coaster drops, but short of vertical, which keeps Diamondback classified as a hyper coaster rather than a giga or strata coaster. The drop follows the 230-foot lift hill; riders fall roughly 15 feet less than the full structure height because the track banks slightly before committing to the plunge.

That 215-foot drop is the tallest and steepest moment on the ride. The airtime hills that follow get progressively smaller in the classic B&M out-and-back pattern, all the way through the hammerhead turn and back toward the station.

Do You Get Wet on Diamondback?

Almost never — at least not deliberately. Scoops built into the back of the final car catch water from a shallow trough near the station and throw it upward and backward, producing a spray that can reach around 50 feet high. Because the scoops sit behind the train rather than beneath the seats, the geyser travels up and away from riders rather than into the cars, so most passengers feel a light mist at most.

The real soaking happens on the pedestrian bridge that runs directly over the splash trough — a deliberate design choice that turns bystanders into part of the show. Longtime visitors recall the spray reaching farther into the train on opening day back in 2009, before nozzle adjustments toned it down; today, the reliable way to get properly wet on Diamondback is to linger on that bridge as a train makes its final approach.

The Ride: What to Expect from Start to Finish

Diamondback follows a classic B&M out-and-back layout. After the chain lift crests the 230-foot apex, the train tips into the 215-foot, 74-degree drop, hits 80 mph, and barely lets that speed bleed away. From there, the track delivers a sequence of large, rolling airtime hills — B&M calls them floater hills — where the train rises over each crest and your body gently lifts away from the seat.

A mid-course brake run appears roughly halfway through but typically runs with minimal trim, keeping speed high into the second half. A hammerhead turn swings the train around for the return leg, which adds another run of hills back toward the station, where the splashdown finale doubles as the ride’s natural speed brake.

The Splashdown: Where It Came From

The splashdown occupies the footprint of Swan Lake, a boat ride that previously sat in that corner of the park before Diamondback’s construction. Diamondback was the first hyper coaster in the world to end with a splash element, which made it a major talking point when it debuted in 2009 — no B&M hyper before it had finished with anything more dramatic than a standard trim brake.

It’s since become one of the most photographed moments at Kings Island. On hot summer days, crowds reliably gather on the bridge above the trough just to watch — and get hit by — the spray as each train comes in.

A Piece of Kings Island History

Diamondback broke ground in October 2007 and was completed by late January 2009, with the track fabricated by Clermont Steel Fabricators, an Ohio-based manufacturer. The $22 million price tag was the largest capital investment Kings Island had undertaken at that point. When tickets for the first-ever public ride were auctioned for charity, buyers paid a combined $102,000 — a signal of how anticipated the coaster was.

It was also the first roller coaster at Kings Island built by Bolliger & Mabillard, the Swiss firm responsible for many of the world’s most celebrated steel coasters. Within three months of opening, Diamondback had carried its millionth passenger, and by mid-2014 the counter had passed 10 million, cementing its place as one of the park’s cornerstone attractions.

Height Requirement and Restraints

Riders must be at least 54 inches tall to board Diamondback. Every seat uses a simple lap bar — there are no over-the-shoulder restraints anywhere on the train — which is one reason the ride is frequently cited as comfortable for a wide range of body types and approachable for riders stepping up from smaller coasters.

Because Diamondback has zero inversions, the open lap-bar system is enough to keep riders secure through the airtime hills and hammerhead turn while still delivering the floating sensation B&M hypers are known for.

Where to Sit for the Best Experience

Back row delivers the strongest airtime. The whip effect at the crest of each hill is most pronounced here, and the first drop produces the sharpest pull — enthusiasts most consistently recommend this seat, and it’s the one most likely to have a longer sub-queue wait.

Front row offers the best visuals, with an unobstructed view of every drop before you hit it and the clearest perspective during the splashdown. Middle rows give the smoothest ride overall — a good pick for a first-time coaster rider or anyone easing into the experience, since the center cars deliver the full layout with less intensity at each crest.

Tips for Riding Diamondback

Ride early or late in the day. Diamondback is a marquee attraction, and midday queues can stretch well past an hour during peak summer weekends. The first 60 minutes after park open and the final stretch before close consistently show the shortest wait times.

Make time to watch the splashdown from the bridge even if you don’t ride. The pedestrian walkway crossing the water trough is free to access, and it’s one of the best spectator spots in the park — just expect to get wet if you linger there as a train makes its final approach. If staying dry matters more than the show, watch from a distance instead.

diamondback kings island stats FAQs

What are Diamondback’s stats at Kings Island?

Diamondback stands 230 feet tall, drops 215 feet at a 74-degree angle, reaches a top speed of 80 mph, and covers 5,282 feet of track in about 3 minutes. It’s a Bolliger & Mabillard hyper coaster with three 32-passenger trains and zero inversions.

Do you get wet on Diamondback at Kings Island?

Riders rarely get wet. The splashdown finale throws water up and backward from scoops on the last car, so the spray mostly misses the train. Spectators standing on the pedestrian bridge above the water trough get soaked instead.

How fast does Diamondback go?

Diamondback reaches a top speed of 80 mph (130 km/h), hit at the bottom of its 215-foot first drop.

What is Diamondback’s drop height?

The first drop is 215 feet, taken at a 74-degree angle, just after the train crests the 230-foot lift hill.

How fast is the Diamondback at Kings Island in mph?

80 mph. That top speed is reached at the bottom of the first drop; Orion, Kings Island’s giga coaster, is faster at 91 mph.

How tall do you have to be to ride Diamondback?

You need to be at least 54 inches tall to ride.

Does Diamondback have any inversions?

No. Diamondback has zero inversions — it’s a traditional B&M out-and-back hyper coaster built for airtime rather than upside-down elements.

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