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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Kathryn Ernst

Bib: 3375 •F •Age: 40

Mc Lean, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Masters (Masters Women)
#0 / 277
Age Group (F40-44)
Official
#0 / 100
Calculated (F40-44)
#0 / 100
Race Day Weather
71°/61°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
42:39
3.11 mi
Rank: #1914
Start → 5K
42:39 | 13:44/mi
10K
1:24:06
6.21 mi
Rank: #1907 (+7)
5K → 10K
41:27 | 13:21/mi
15K
2:09:26
9.32 mi
Rank: #1913 (-6)
10K → 15K
45:20 | 14:36/mi
20K
2:54:47
12.43 mi
Rank: #1913
15K → 20K
45:21 | 14:36/mi
Half
3:04:27
13.10 mi
Rank: #1904 (+9)
20K → Half
9:40 | 14:25/mi
25K
3:35:23
15.53 mi
Rank: #1890 (+14)
Half → 25K
30:56 | 12:42/mi
30K
4:10:46
18.64 mi
Rank: #1861 (+29)
25K → 30K
35:23 | 11:24/mi
35K
5:00:31
21.75 mi
Rank: #1836 (+25)
30K → 35K
49:45 | 16:01/mi
25.2M
5:55:55
25.20 mi
Rank: #1851 (-15)
35K → 25.2M
55:24 | 16:03/mi
Finish
6:11:48
26.22 mi
Rank: #1855 (-4)
25.2M → Finish
15:53 | 15:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time3:04:27
Pace14:05 /mi
2nd Half
Distance13.12 mi
Time3:07:21
Pace14:17 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:31:1442:3913:4442:39
13:44
-
10K
6.21 mi09:12:411:24:0613:3341:27
13:21
-0:23
15K
9.32 mi09:58:012:09:2613:5445:20
14:36
+1:15
20K
12.43 mi10:43:222:54:4714:0445:21
14:36
0:00
Half
13.10 mi10:53:023:04:2714:059:40
14:25
-0:11
25K
15.53 mi11:23:583:35:2313:5230:56
12:42
-1:43
30K
18.64 mi11:59:214:10:4613:2835:23
11:24
-1:18
35K
21.75 mi12:49:065:00:3113:5049:45
16:01
+4:37
25.2M
25.20 mi13:44:305:55:5514:0855:24
16:03
+0:02
Finish
26.22 mi14:00:236:11:4814:1215:53
15:36
-0:27

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

11:24 /mi

Average Pace

14:11 /mi

Slowest Pace

16:03 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:30:25

40% of race

Time at Steady Pace

1:40:21

27% of race

Time at Slower Pace

2:01:02

33% of race

Average Pace: 14:11 /mi

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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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:31:1442:3913:4442:39
13:44
#1914
10K
6.21 mi09:12:411:24:0613:3341:27
13:21
#1907
15K
9.32 mi09:58:012:09:2613:5445:20
14:36
#1913
20K
12.43 mi10:43:222:54:4714:0445:21
14:36
#1913
Half
13.10 mi10:53:023:04:2714:059:40
14:25
#1904
25K
15.53 mi11:23:583:35:2313:5230:56
12:42
#1890
30K
18.64 mi11:59:214:10:4613:2835:23
11:24
#1861
35K
21.75 mi12:49:065:00:3113:5049:45
16:01
#1836
25.2M
25.20 mi13:44:305:55:5514:0855:24
16:03
#1851
Finish
26.22 mi14:00:236:11:4814:1215:53
15:36
#1855
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi1914772971919(Top 98%)776(Top 98%)97(Top 97%)
10K6.21 mi3.10 mi1907+7766+694+31877(Top 96%)744(Top 94%)92(Top 92%)
15K9.32 mi3.11 mi1913-6769-395-11919(Top 98%)776(Top 98%)97(Top 97%)
20K12.43 mi3.11 mi1913770-196-11902(Top 98%)765(Top 97%)95(Top 95%)
Half13.10 mi0.67 mi1904+9767+3961824(Top 94%)723(Top 91%)92(Top 92%)
25K15.53 mi2.43 mi1890+14753+1493+31602(Top 82%)607(Top 77%)70(Top 70%)
30K18.64 mi3.11 mi1861+29733+2092+11564(Top 80%)601(Top 76%)70(Top 70%)
35K21.75 mi3.11 mi1836+25720+1388+41630(Top 84%)642(Top 81%)79(Top 79%)
25.2M25.20 mi3.45 mi1851-15733-1393-51828(Top 94%)739(Top 93%)94(Top 94%)
Finish26.22 mi1.02 mi1855-4736-3931891(Top 97%)769(Top 97%)97(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×1
+26ft-31ft

Overall

1919

Females

776

F40-44

97

5K→10K

3.1 - 6.2 mi

Top 96%
×2
+38ft-17ft

Overall

1877

Females

744

F40-44

92

10K→15K

6.2 - 9.3 mi

Top 98%
×2
+26ft-44ft

Overall

1919

Females

776

F40-44

97

15K→20K

9.3 - 12.4 mi

Top 98%
×1
+35ft-22ft

Overall

1902

Females

765

F40-44

95

20K→Half

12.4 - 13.1 mi

Top 94%
×1
+7ft-13ft

Overall

1824

Females

723

F40-44

92

Half→25K

13.1 - 15.5 mi

Top 82%
×2
+48ft-19ft

Overall

1602

Females

607

F40-44

70

25K→30K

15.5 - 18.6 mi

Top 80%
×2
+38ft-52ft

Overall

1564

Females

601

F40-44

70

30K→35K

18.6 - 21.8 mi

Top 84%
×2
+39ft-39ft

Overall

1630

Females

642

F40-44

79

35K→25.2M

21.8 - 25.2 mi

Top 94%
×3
+57ft-58ft

Overall

1828

Females

739

F40-44

94

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×1
+17ft-12ft

Overall

1891

Females

769

F40-44

97

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
108
Passed By
49
Net Change
+59
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1914
5K → 10K136+7#1914#1907
10K → 15K39-6#1907#1913
15K → 20K330#1913#1913
20K → Half90+9#1913#1904
Half → 25K228+14#1904#1890
25K → 30K301+29#1890#1861
30K → 35K261+25#1861#1836
35K → 25.2M217-15#1836#1851
25.2M → Finish04-4#1851#1855
TOTALS10849+59
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

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

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

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
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