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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Blade Lanham

Bib: 1926 •F •Age: 26

Arlington, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Age Group (F25-29)
Official
#0 / 180
Calculated (F25-29)
#0 / 180
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
33:00
3.11 mi
Rank: #1426
Start → 5K
33:00 | 10:38/mi
10K
1:05:48
6.21 mi
Rank: #1391 (+35)
5K → 10K
32:48 | 10:34/mi
15K
1:39:24
9.32 mi
Rank: #1399 (-8)
10K → 15K
33:36 | 10:49/mi
20K
2:13:34
12.43 mi
Rank: #1401 (-2)
15K → 20K
34:10 | 11:00/mi
Half
2:21:36
13.10 mi
Rank: #1397 (+4)
20K → Half
8:02 | 11:59/mi
25K
2:52:18
15.53 mi
Rank: #1435 (-38)
Half → 25K
30:42 | 12:37/mi
30K
3:27:18
18.64 mi
Rank: #1465 (-30)
25K → 30K
35:00 | 11:16/mi
35K
4:10:33
21.75 mi
Rank: #1455 (+10)
30K → 35K
43:15 | 13:56/mi
25.2M
4:51:54
25.20 mi
Rank: #1423 (+32)
35K → 25.2M
41:21 | 11:59/mi
Finish
5:03:34
26.22 mi
Rank: #1421 (+2)
25.2M → Finish
11:40 | 11:27/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:21:36
Pace10:49 /mi
2nd Half
Distance13.12 mi
Time2:41:58
Pace12:21 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:15:1733:0010:3833:00
10:38
-
10K
6.21 mi08:48:051:05:4810:3632:48
10:34
-0:04
15K
9.32 mi09:21:411:39:2410:4033:36
10:49
+0:15
20K
12.43 mi09:55:512:13:3410:4534:10
11:00
+0:11
Half
13.10 mi10:03:532:21:3610:498:02
11:59
+0:59
25K
15.53 mi10:34:352:52:1811:0630:42
12:37
+0:38
30K
18.64 mi11:09:353:27:1811:0835:00
11:16
-1:21
35K
21.75 mi11:52:504:10:3311:3243:15
13:56
+2:40
25.2M
25.20 mi12:34:114:51:5411:3641:21
11:59
-1:57
Finish
26.22 mi12:45:515:03:3411:3611:40
11:27
-0:32

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

10:34 /mi

Average Pace

11:35 /mi

Slowest Pace

13:56 /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

1:39:24

33% of race

Time at Steady Pace

1:20:50

27% of race

Time at Slower Pace

2:03:20

41% of race

Average Pace: 11:35 /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 mi08:15:1733:0010:3833:00
10:38
#1426
10K
6.21 mi08:48:051:05:4810:3632:48
10:34
#1391
15K
9.32 mi09:21:411:39:2410:4033:36
10:49
#1399
20K
12.43 mi09:55:512:13:3410:4534:10
11:00
#1401
Half
13.10 mi10:03:532:21:3610:498:02
11:59
#1397
25K
15.53 mi10:34:352:52:1811:0630:42
12:37
#1435
30K
18.64 mi11:09:353:27:1811:0835:00
11:16
#1465
35K
21.75 mi11:52:504:10:3311:3243:15
13:56
#1455
25.2M
25.20 mi12:34:114:51:5411:3641:21
11:59
#1423
Finish
26.22 mi12:45:515:03:3411:3611:40
11:27
#1421
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
5K3.11 mi3.11 mi14265031241420(Top 73%)495(Top 63%)133(Top 74%)
10K6.21 mi3.10 mi1391+35483+20121+31365(Top 70%)462(Top 58%)118(Top 66%)
15K9.32 mi3.11 mi1399-8482+1123-21420(Top 73%)495(Top 63%)133(Top 74%)
20K12.43 mi3.11 mi1401-2487-5127-41451(Top 74%)517(Top 65%)136(Top 76%)
Half13.10 mi0.67 mi1397+4488-1129-21485(Top 76%)535(Top 68%)137(Top 76%)
25K15.53 mi2.43 mi1435-38510-22136-71591(Top 82%)602(Top 76%)149(Top 83%)
30K18.64 mi3.11 mi1465-30530-20138-21540(Top 79%)588(Top 74%)145(Top 81%)
35K21.75 mi3.11 mi1455+10532-2136+21307(Top 67%)495(Top 63%)125(Top 69%)
25.2M25.20 mi3.45 mi1423+32524+8133+31172(Top 60%)459(Top 58%)122(Top 68%)
Finish26.22 mi1.02 mi1421+2525-11331397(Top 72%)549(Top 69%)142(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×1
+26ft-31ft

Overall

1420

Females

495

F25-29

133

5K→10K

3.1 - 6.2 mi

Top 70%
×2
+38ft-17ft

Overall

1365

Females

462

F25-29

118

10K→15K

6.2 - 9.3 mi

Top 73%
×2
+26ft-44ft

Overall

1420

Females

495

F25-29

133

15K→20K

9.3 - 12.4 mi

Top 74%
×1
+35ft-22ft

Overall

1451

Females

517

F25-29

136

20K→Half

12.4 - 13.1 mi

Top 76%
×1
+7ft-13ft

Overall

1485

Females

535

F25-29

137

Half→25K

13.1 - 15.5 mi

Top 82%
×2
+48ft-19ft

Overall

1591

Females

602

F25-29

149

25K→30K

15.5 - 18.6 mi

Top 79%
×2
+38ft-52ft

Overall

1540

Females

588

F25-29

145

30K→35K

18.6 - 21.8 mi

Top 67%
×2
+39ft-39ft

Overall

1307

Females

495

F25-29

125

35K→25.2M

21.8 - 25.2 mi

Top 60%
×3
+57ft-58ft

Overall

1172

Females

459

F25-29

122

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×1
+17ft-12ft

Overall

1397

Females

549

F25-29

142

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
188
Passed By
183
Net Change
+5
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1426
5K → 10K5116+35#1426#1391
10K → 15K1927-8#1391#1399
15K → 20K1416-2#1399#1401
20K → Half106+4#1401#1397
Half → 25K1048-38#1397#1435
25K → 30K1141-30#1435#1465
30K → 35K3222+10#1465#1455
35K → 25.2M375+32#1455#1423
25.2M → Finish42+2#1423#1421
TOTALS188183+5
📊

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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