Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons logo

Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons

Date
Last held Aug 15, 2026, next date to be announced
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Start location and course

10821 Park Road, Spencer, TN 38585

The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.

Calfkiller Sprint Triathlon - Age Group

104
finishers
1:47:57
median (6:19 /mi)
1:15:24
winning time
47% / 53%
women / men
median 1:47:571:16:362:37:07
Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

Olympic Triathlon - Age Group

74
finishers
3:16:41
median (6:10 /mi)
2:29:00
winning time
36% / 64%
women / men

Half Iron Distance Triathlon - Age Group

43
finishers
6:33:13
median (5:36 /mi)
5:08:32
winning time
22% / 78%
women / men

Aggregated from official results (Bald Eagle Events) for Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons. Individual finisher names are not stored here.

How fast do you need to be at Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons?

At the 2026 Calfkiller Sprint Triathlon - Age Group, the fastest tenth finished in 1:24:33 or better, the top quarter in 1:33:46, and half the field in 1:47:57; the last tenth came in after 2:17:13.

At the 2026 Olympic Triathlon - Age Group, the fastest tenth finished in 2:51:24 or better, the top quarter in 3:03:53, and half the field in 3:16:41; the last tenth came in after 4:06:29.

At the 2026 Half Iron Distance Triathlon - Age Group, the fastest tenth finished in 5:51:53 or better, the top quarter in 6:12:03, and half the field in 6:33:13; the last tenth came in after 8:09:32.

Third place by age group, 2026 Calfkiller Sprint Triathlon - Age Group
AgeWomenMen
20-291:45:311:29:32
30-391:47:221:25:10
40-492:01:251:19:57
50-591:47:571:19:14
60-69n/a1:33:39

Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.

What would my time get me?

Where a finish time would have placed in 2026.

Swim, bike and run splits at Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons

At the 2026 Calfkiller Sprint Triathlon - Age Group, the bike decided the most: the middle of the field lost about 9:53 to the top quarter there, 49% of the gap across the three legs.

2026 Calfkiller Sprint Triathlon - Age Group, 104 finishers
LegTop 10%Top 25%MedianSlowest 25%
Swim9:5911:0312:2314:44+
T14:085:196:478:26+
Bike40:1144:4651:4857:32+
T21:041:231:472:44+
Run25:5129:4634:4241:56+

Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.

At the 2026 Olympic Triathlon - Age Group, the run decided the most: the middle of the field lost about 10:36 to the top quarter there, 41% of the gap across the three legs.

2026 Olympic Triathlon - Age Group, 74 finishers
LegTop 10%Top 25%MedianSlowest 25%
Swim32:5134:0237:4842:50+
T14:445:256:197:39+
Bike1:13:361:17:091:23:361:32:06+
T21:161:332:102:56+
Run54:031:00:331:08:251:17:43+

Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.

Finishers by year

Down 23 percent since 2025.

All events combined, from official results.

Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons Sprint Triathlon year by year

From 2025 to 2026, the field went from 159 to 104 finishers, and the median time rose from 1:45:49 to 1:47:57.

YearFinishersMedianFastest tenthWinner
2026104 (-35%)1:47:57under 1:24:331:15:24
20251591:45:49under 1:26:201:14:16

From each year's official results for the Sprint Triathlon; virtual options are left out.

From the race's page

What the organizers of Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons cover on their registration page, in brief.

Course

Segment Detail Info

Tri Fall Creek Falls Half Iron, Olympic and Sprint COURSE DETAILS: Swim. -BUOYS ARE KEPT ON LEFT - 1.2 Mi Half Iron: one loop of ALL BUOYS – large triangle buoys will be at the far two turns by dam & one back by new lodge construction near…

Course

Sprint Course Maps

Sprint Swim Map. Sprint Bike Map. Sprint Run Map.

Course

Olympic Course Maps

Olympic Swim Map. Olympic Bike Map. Olympic Run Map.

Course

Half Iron Course Maps

Half Iron Swim Map. Half Iron Bike Map. Half Iron Run Map.

Parking and travel

Parking and Transition

Click Here for Google Location.

Full details on the race's RunSignup page

Race details

Where
10821 Park Road, Spencer, TN 38585Map
Course
Road
Distances
Sprint Triathlon, Olympic Triathlon, Half Iron Triathlon, Aquabike
Editions
2026 (Aug 15, 2026), 2025 (Aug 16, 2025), 2024 (Aug 17, 2024), 2023 (Aug 19, 2023), 2022 (Aug 20, 2022), 2021 (Aug 21, 2021)
Status
The next edition has not been announced yet. Past events: Tri Fall Creek Falls Triathlon - Age Group, Tri Fall Creek Falls Triathlon - Aqua-Bike, Tri Fall Creek Falls Triathlon - Athena, Tri Fall Creek Falls Triathlon - Clydesdale, Tri Fall Creek Falls Triathlon - Co-Ed Relay.

Organize this race? Add details or a correction

Quick answers

When is Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons?
The next date has not been announced.
How much does it cost?
See the registration page for current pricing.
What distances are offered?
Sprint Triathlon, Olympic Triathlon, Half Iron Triathlon, Aquabike.
How big is it, and how fast?
In 2026, 104 athletes finished the Calfkiller Sprint Triathlon - Age Group; the median finish was 1:47:57 and the winner finished in 1:15:24.
Where does it start?
10821 Park Road, Spencer, TN 38585.
Is there a course map?
Yes, the organizers publish the route on MapMyRun; the link is under Start location and course.

From the organizers

The 21st annual Fall Creek Falls Triathlons take place every year at the beautiful Fall Creek Falls State Park. The Olympic distance race began back in 2005 and races have expanded with the addition of Sprint and Half Iron distances.

See Menu bar on top for the Course Maps.

Calfkiller Sprint Triathlon - S 500 mtr. - B 22K - R 5K

Fall Creek Falls Half Iron Distance Triathlon -S 1.2 Mi - B 56 Mi - R 13.1 Mi.

Olympic Distance is a .93 mile (1.5k) swim, 24.8 mile (40k) bike, and 6.2 mile (10k) run.

Read the full description on RunSignup