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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Julia O'Connor

Bib: 2467 •F •Age: 29

Toano, 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
39:09
3.11 mi
Rank: #1851
Start → 5K
39:09 | 12:37/mi
10K
1:16:34
6.21 mi
Rank: #1798 (+53)
5K → 10K
37:25 | 12:03/mi
15K
1:56:11
9.32 mi
Rank: #1807 (-9)
10K → 15K
39:37 | 12:46/mi
20K
2:40:35
12.43 mi
Rank: #1841 (-34)
15K → 20K
44:24 | 14:18/mi
Half
2:51:16
13.10 mi
Rank: #1840 (+1)
20K → Half
10:41 | 15:56/mi
25K
3:27:17
15.53 mi
Rank: #1846 (-6)
Half → 25K
36:01 | 14:48/mi
30K
4:11:56
18.64 mi
Rank: #1870 (-24)
25K → 30K
44:39 | 14:23/mi
35K
5:09:27
21.75 mi
Rank: #1875 (-5)
30K → 35K
57:31 | 18:31/mi
25.2M
6:06:09
25.20 mi
Rank: #1877 (-2)
35K → 25.2M
56:42 | 16:26/mi
Finish
6:20:47
26.22 mi
Rank: #1876 (+1)
25.2M → Finish
14:38 | 14:22/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:51:16
Pace13:05 /mi
2nd Half
Distance13.12 mi
Time3:29:31
Pace15:59 /mi
📊Positive Split: 22.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:24:0839:0912:3739:09
12:37
-
10K
6.21 mi09:01:331:16:3412:2037:25
12:03
-0:34
15K
9.32 mi09:41:101:56:1112:2839:37
12:46
+0:43
20K
12.43 mi10:25:342:40:3512:5644:24
14:18
+1:32
Half
13.10 mi10:36:152:51:1613:0510:41
15:56
+1:38
25K
15.53 mi11:12:163:27:1713:2136:01
14:48
-1:08
30K
18.64 mi11:56:554:11:5613:3144:39
14:23
-0:25
35K
21.75 mi12:54:265:09:2714:1457:31
18:31
+4:08
25.2M
25.20 mi13:51:086:06:0914:3256:42
16:26
-2:05
Finish
26.22 mi14:05:466:20:4714:3314:38
14:22
-2:04

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

12:03 /mi

Average Pace

14:32 /mi

Slowest Pace

18:31 /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

1:56:11

31% of race

Time at Steady Pace

2:19:42

37% of race

Time at Slower Pace

2:04:54

33% of race

Average Pace: 14:31 /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 mi08:24:0839:0912:3739:09
12:37
#1851
10K
6.21 mi09:01:331:16:3412:2037:25
12:03
#1798
15K
9.32 mi09:41:101:56:1112:2839:37
12:46
#1807
20K
12.43 mi10:25:342:40:3512:5644:24
14:18
#1841
Half
13.10 mi10:36:152:51:1613:0510:41
15:56
#1840
25K
15.53 mi11:12:163:27:1713:2136:01
14:48
#1846
30K
18.64 mi11:56:554:11:5613:3144:39
14:23
#1870
35K
21.75 mi12:54:265:09:2714:1457:31
18:31
#1875
25.2M
25.20 mi13:51:086:06:0914:3256:42
16:26
#1877
Finish
26.22 mi14:05:466:20:4714:3314:38
14:22
#1876
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 mi18517311681808(Top 93%)695(Top 88%)165(Top 92%)
10K6.21 mi3.10 mi1798+53694+37163+51739(Top 89%)655(Top 83%)156(Top 87%)
15K9.32 mi3.11 mi1807-9695-11631808(Top 93%)695(Top 88%)165(Top 92%)
20K12.43 mi3.11 mi1841-34716-21167-41893(Top 97%)760(Top 96%)174(Top 97%)
Half13.10 mi0.67 mi1840+1721-5166+11897(Top 97%)767(Top 97%)175(Top 97%)
25K15.53 mi2.43 mi1846-6724-3168-21828(Top 94%)728(Top 92%)169(Top 94%)
30K18.64 mi3.11 mi1870-24739-151681896(Top 97%)768(Top 97%)176(Top 98%)
35K21.75 mi3.11 mi1875-5748-9171-31863(Top 96%)752(Top 95%)175(Top 97%)
25.2M25.20 mi3.45 mi1877-2752-4173-21858(Top 95%)750(Top 95%)176(Top 98%)
Finish26.22 mi1.02 mi1876+17521731821(Top 93%)736(Top 93%)172(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×1
+26ft-31ft

Overall

1808

Females

695

F25-29

165

5K→10K

3.1 - 6.2 mi

Top 89%
×2
+38ft-17ft

Overall

1739

Females

655

F25-29

156

10K→15K

6.2 - 9.3 mi

Top 93%
×2
+26ft-44ft

Overall

1808

Females

695

F25-29

165

15K→20K

9.3 - 12.4 mi

Top 97%
×1
+35ft-22ft

Overall

1893

Females

760

F25-29

174

20K→Half

12.4 - 13.1 mi

Top 97%
×1
+7ft-13ft

Overall

1897

Females

767

F25-29

175

Half→25K

13.1 - 15.5 mi

Top 94%
×2
+48ft-19ft

Overall

1828

Females

728

F25-29

169

25K→30K

15.5 - 18.6 mi

Top 97%
×2
+38ft-52ft

Overall

1896

Females

768

F25-29

176

30K→35K

18.6 - 21.8 mi

Top 96%
×2
+39ft-39ft

Overall

1863

Females

752

F25-29

175

35K→25.2M

21.8 - 25.2 mi

Top 95%
×3
+57ft-58ft

Overall

1858

Females

750

F25-29

176

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×1
+17ft-12ft

Overall

1821

Females

736

F25-29

172

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
110
Passed By
135
Net Change
-25
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1851
5K → 10K6512+53#1851#1798
10K → 15K1019-9#1798#1807
15K → 20K135-34#1807#1841
20K → Half109+1#1841#1840
Half → 25K1218-6#1840#1846
25K → 30K024-24#1846#1870
30K → 35K712-5#1870#1875
35K → 25.2M46-2#1875#1877
25.2M → Finish10+1#1877#1876
TOTALS110135-25
📊

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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