Shamrock Marathon logo
SHAMROCK MARATHON 2026

Lauren Winterhoff

Bib: 1510•F•Age: 19

Henrico, VA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 2429
Top 38%
Gender (Female)
#0 / 943
Top 27%
F0-19
#0 / 21
Top 33%
Race Day Weather
55°/45°F
few clouds

⏱️ Race Timeline

Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:10/mi
28:29
↑ 26↓ 31
10K· 6.21 mi
8:59/mi
56:23
↑ 38↓ 170.1%
15K· 9.32 mi
8:40/mi
1:23:20
↑ 26↓ 440.1%
20K· 12.43 mi
8:44/mi
1:50:28
↑ 35↓ 22
Half· 13.10 mi
8:59/mi
1:56:30
↓ 130.2%
30K· 18.64 mi
9:58/mi
2:51:43
↑ 86↓ 72
35K· 21.75 mi
11:10/mi
3:26:24
↑ 39↓ 39
25.2M
11:14/mi
4:05:09
↑ 57↓ 58
Finish· 26.22 mi
9:25/mi
4:14:45
↑ 17↓ 12

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time1:56:30
Pace8:54 /mi
2nd Half
Distance13.12 mi
Time2:18:15
Pace10:32 /mi
📊Positive Split: 18.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:06:3928:299:1028:29
9:10
-
10K
6.21 mi08:34:3356:239:0427:54
8:59
-0:11
15K
9.32 mi09:01:301:23:208:5626:57
8:40
-0:19
20K
12.43 mi09:28:381:50:288:5327:08
8:44
+0:04
Half
13.10 mi09:34:401:56:308:546:02
8:59
+0:15
30K
18.64 mi10:29:532:51:439:1355:13
9:58
+0:59
35K
21.75 mi11:04:343:26:249:2934:41
11:10
+1:12
25.2M
25.20 mi11:43:194:05:099:4438:45
11:14
+0:04
Finish
26.22 mi11:52:554:14:459:439:36
9:25
-1:49

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:40 /mi

Average Pace

9:43 /mi

Slowest Pace

11:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:57

11% of race

Time at Steady Pace

1:39:09

39% of race

Time at Slower Pace

2:08:39

51% of race

Average Pace: 9:43 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:06:3928:299:1028:29
9:10
#1111
10K
6.21 mi08:34:3356:239:0427:54
8:59
#1064
15K
9.32 mi09:01:301:23:208:5626:57
8:40
#968
20K
12.43 mi09:28:381:50:288:5327:08
8:44
#910
Half
13.10 mi09:34:401:56:308:546:02
8:59
#900
30K
18.64 mi10:29:532:51:439:1355:13
9:58
#1030
35K
21.75 mi11:04:343:26:249:2934:41
11:10
#966
25.2M
25.20 mi11:43:194:05:099:4438:45
11:14
#939
Finish
26.22 mi11:52:554:14:459:439:36
9:25
#926
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF0-19Seg. OverallSeg. FemalesSeg. F0-19
5K3.11 mi3.11 mi111129011789(Top 32%)168(Top 18%)6(Top 29%)
10K6.21 mi3.10 mi1064+47277+138+31042(Top 43%)267(Top 28%)8(Top 38%)
15K9.32 mi3.11 mi968+96232+458789(Top 32%)168(Top 18%)6(Top 29%)
20K12.43 mi3.11 mi910+58212+207+1782(Top 32%)162(Top 17%)2(Top 10%)
Half13.10 mi0.67 mi900+10209+37894(Top 37%)207(Top 22%)4(Top 19%)
30K18.64 mi5.54 mi1030-130264-559-21212(Top 50%)363(Top 38%)10(Top 48%)
35K21.75 mi3.11 mi966+64257+77+2899(Top 37%)270(Top 29%)7(Top 33%)
25.2M25.20 mi3.45 mi939+27260-37979(Top 40%)336(Top 36%)10(Top 48%)
Finish26.22 mi1.02 mi926+13256+47736(Top 30%)222(Top 24%)8(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×1story
+26ft-31ft

Overall

789

Females

168

F15-19

6

5K→10K

3.1 - 6.2 mi

Top 43%
×2story building
+38ft-17ft

Overall

1042

Females

267

F15-19

8

10K→15K

6.2 - 9.3 mi

Top 32%
×2story building
+26ft-44ft

Overall

789

Females

168

F15-19

6

15K→20K

9.3 - 12.4 mi

Top 32%
×1story
+35ft-22ft

Overall

782

Females

162

F15-19

2

20K→Half

12.4 - 13.1 mi

Top 37%
×1human
+7ft-13ft

Overall

894

Females

207

F15-19

4

Half→30K

13.1 - 18.6 mi

Top 50%
×2story building
+86ft-72ft

Overall

1212

Females

363

F15-19

10

30K→35K

18.6 - 21.8 mi

Top 37%
×2stacked humans
+39ft-39ft

Overall

899

Females

270

F15-19

7

35K→25.2M

21.8 - 25.2 mi

Top 40%
×3story building
+57ft-58ft

Overall

979

Females

336

F15-19

10

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×1human
+17ft-12ft

Overall

736

Females

222

F15-19

8

Passing Analysis

Category:
Athletes Passed
425*
Passed By
240
Net Change
+185
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1111
5K → 10K64*17+47#1111#1064
10K → 15K960+96#1064#968
15K → 20K65*7+58#968#910
20K → Half16*6+10#910#900
Half → 30K29*159-130#900#1030
30K → 35K84*20+64#1030#966
35K → 25.2M56*29+27#966#939
25.2M → Finish15*2+13#939#926
TOTALS425*240+185

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...
🏆 Finisher Certificate
Download or share your official race finisher certificate
Loading certificate...

Your certificate is generated on-demand and can be shared on social media or saved for your records

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management