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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Joanna Tan

Bib: 1955 •F •Age: 28

Virginia Bch, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 38%
Gender (Female)
#0 / 791
Top 29%
Age Group (F25-29)
Official
#0 / 180
Calculated (F25-29)
#0 / 180
Top 37%
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
28:45
3.11 mi
Rank: #912
Start → 5K
28:45 | 9:16/mi
10K
57:45
6.21 mi
Rank: #929 (-17)
5K → 10K
29:00 | 9:21/mi
15K
1:26:45
9.32 mi
Rank: #919 (+10)
10K → 15K
29:00 | 9:21/mi
20K
1:55:24
12.43 mi
Rank: #905 (+14)
15K → 20K
28:39 | 9:14/mi
Half
2:02:00
13.10 mi
Rank: #889 (+16)
20K → Half
6:36 | 9:51/mi
25K
2:25:40
15.53 mi
Rank: #876 (+13)
Half → 25K
23:40 | 9:43/mi
30K
2:51:41
18.64 mi
Rank: #835 (+41)
25K → 30K
26:01 | 8:23/mi
35K
3:25:39
21.75 mi
Rank: #787 (+48)
30K → 35K
33:58 | 10:56/mi
25.2M
4:01:10
25.20 mi
Rank: #748 (+39)
35K → 25.2M
35:31 | 10:18/mi
Finish
4:11:08
26.22 mi
Rank: #748
25.2M → Finish
9:58 | 9:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:02:00
Pace9:19 /mi
2nd Half
Distance13.12 mi
Time2:09:09
Pace9:51 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:07:0928:459:1628:45
9:16
-
10K
6.21 mi08:36:0957:459:1829:00
9:21
+0:05
15K
9.32 mi09:05:091:26:459:1929:00
9:21
0:00
20K
12.43 mi09:33:481:55:249:1828:39
9:14
-0:07
Half
13.10 mi09:40:242:02:009:196:36
9:51
+0:37
25K
15.53 mi10:04:042:25:409:2323:40
9:43
-0:08
30K
18.64 mi10:30:052:51:419:1326:01
8:23
-1:20
35K
21.75 mi11:04:033:25:399:2833:58
10:56
+2:33
25.2M
25.20 mi11:39:344:01:109:3535:31
10:18
-0:38
Finish
26.22 mi11:49:324:11:089:369:58
9:47
-0:31

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

8:23 /mi

Average Pace

9:35 /mi

Slowest Pace

10:56 /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

2:21:25

56% of race

Time at Steady Pace

40:14

16% of race

Time at Slower Pace

1:09:29

28% of race

Average Pace: 9:35 /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 mi08:07:0928:459:1628:45
9:16
#912
10K
6.21 mi08:36:0957:459:1829:00
9:21
#929
15K
9.32 mi09:05:091:26:459:1929:00
9:21
#919
20K
12.43 mi09:33:481:55:249:1828:39
9:14
#905
Half
13.10 mi09:40:242:02:009:196:36
9:51
#889
25K
15.53 mi10:04:042:25:409:2323:40
9:43
#876
30K
18.64 mi10:30:052:51:419:1326:01
8:23
#835
35K
21.75 mi11:04:033:25:399:2833:58
10:56
#787
25.2M
25.20 mi11:39:344:01:109:3535:31
10:18
#748
Finish
26.22 mi11:49:324:11:089:369:58
9:47
#748
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 mi91226473918(Top 47%)265(Top 34%)73(Top 41%)
10K6.21 mi3.10 mi929-17275-1175-2939(Top 48%)279(Top 35%)74(Top 41%)
15K9.32 mi3.11 mi919+10268+772+3918(Top 47%)265(Top 34%)73(Top 41%)
20K12.43 mi3.11 mi905+14263+572850(Top 44%)241(Top 30%)69(Top 38%)
Half13.10 mi0.67 mi889+16258+571+1826(Top 42%)233(Top 29%)66(Top 37%)
25K15.53 mi2.43 mi876+13251+770+1835(Top 43%)240(Top 30%)71(Top 39%)
30K18.64 mi3.11 mi835+41239+1269+1722(Top 37%)215(Top 27%)64(Top 36%)
35K21.75 mi3.11 mi787+48229+1067+2650(Top 33%)212(Top 27%)60(Top 33%)
25.2M25.20 mi3.45 mi748+39225+465+2707(Top 36%)252(Top 32%)71(Top 39%)
Finish26.22 mi1.02 mi748230-566-1873(Top 45%)321(Top 41%)91(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×1
+26ft-31ft

Overall

918

Females

265

F25-29

73

5K→10K

3.1 - 6.2 mi

Top 48%
×2
+38ft-17ft

Overall

939

Females

279

F25-29

74

10K→15K

6.2 - 9.3 mi

Top 47%
×2
+26ft-44ft

Overall

918

Females

265

F25-29

73

15K→20K

9.3 - 12.4 mi

Top 44%
×1
+35ft-22ft

Overall

850

Females

241

F25-29

69

20K→Half

12.4 - 13.1 mi

Top 42%
×1
+7ft-13ft

Overall

826

Females

233

F25-29

66

Half→25K

13.1 - 15.5 mi

Top 43%
×2
+48ft-19ft

Overall

835

Females

240

F25-29

71

25K→30K

15.5 - 18.6 mi

Top 37%
×2
+38ft-52ft

Overall

722

Females

215

F25-29

64

30K→35K

18.6 - 21.8 mi

Top 33%
×2
+39ft-39ft

Overall

650

Females

212

F25-29

60

35K→25.2M

21.8 - 25.2 mi

Top 36%
×3
+57ft-58ft

Overall

707

Females

252

F25-29

71

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×1
+17ft-12ft

Overall

873

Females

321

F25-29

91

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
238
Passed By
74
Net Change
+164
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#912
5K → 10K1431-17#912#929
10K → 15K199+10#929#919
15K → 20K2410+14#919#905
20K → Half171+16#905#889
Half → 25K218+13#889#876
25K → 30K421+41#876#835
30K → 35K524+48#835#787
35K → 25.2M434+39#787#748
25.2M → Finish660#748#748
TOTALS23874+164
📊

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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