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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Bridget Frothingham

Bib: 1868 •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
36:40
3.11 mi
Rank: #1751
Start → 5K
36:40 | 11:49/mi
10K
1:09:39
6.21 mi
Rank: #1577 (+174)
5K → 10K
32:59 | 10:37/mi
15K
1:46:45
9.32 mi
Rank: #1640 (-63)
10K → 15K
37:06 | 11:57/mi
20K
2:24:29
12.43 mi
Rank: #1651 (-11)
15K → 20K
37:44 | 12:09/mi
Half
2:32:21
13.10 mi
Rank: #1634 (+17)
20K → Half
7:52 | 11:44/mi
25K
3:02:04
15.53 mi
Rank: #1615 (+19)
Half → 25K
29:43 | 12:13/mi
30K
3:40:28
18.64 mi
Rank: #1648 (-33)
25K → 30K
38:24 | 12:22/mi
35K
4:31:52
21.75 mi
Rank: #1657 (-9)
30K → 35K
51:24 | 16:33/mi
25.2M
5:23:36
25.20 mi
Rank: #1668 (-11)
35K → 25.2M
51:44 | 15:00/mi
Finish
5:35:43
26.22 mi
Rank: #1665 (+3)
25.2M → Finish
12:07 | 11:54/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:32:21
Pace11:38 /mi
2nd Half
Distance13.12 mi
Time3:03:23
Pace13:59 /mi
📊Positive Split: 20.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:14:5236:4011:4936:40
11:49
-
10K
6.21 mi08:47:511:09:3911:1332:59
10:37
-1:12
15K
9.32 mi09:24:571:46:4511:2837:06
11:57
+1:20
20K
12.43 mi10:02:412:24:2911:3837:44
12:09
+0:12
Half
13.10 mi10:10:332:32:2111:387:52
11:44
-0:25
25K
15.53 mi10:40:163:02:0411:4429:43
12:13
+0:29
30K
18.64 mi11:18:403:40:2811:5038:24
12:22
+0:09
35K
21.75 mi12:10:044:31:5212:3151:24
16:33
+4:11
25.2M
25.20 mi13:01:485:23:3612:5151:44
15:00
-1:33
Finish
26.22 mi13:13:555:35:4312:4912:07
11:54
-3:06

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

10:37 /mi

Average Pace

12:49 /mi

Slowest Pace

16:33 /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

32:59

10% of race

Time at Steady Pace

3:19:36

59% of race

Time at Slower Pace

1:43:08

31% of race

Average Pace: 12:48 /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 mi08:14:5236:4011:4936:40
11:49
#1751
10K
6.21 mi08:47:511:09:3911:1332:59
10:37
#1577
15K
9.32 mi09:24:571:46:4511:2837:06
11:57
#1640
20K
12.43 mi10:02:412:24:2911:3837:44
12:09
#1651
Half
13.10 mi10:10:332:32:2111:387:52
11:44
#1634
25K
15.53 mi10:40:163:02:0411:4429:43
12:13
#1615
30K
18.64 mi11:18:403:40:2811:5038:24
12:22
#1648
35K
21.75 mi12:10:044:31:5212:3151:24
16:33
#1657
25.2M
25.20 mi13:01:485:23:3612:5151:44
15:00
#1668
Finish
26.22 mi13:13:555:35:4312:4912:07
11:54
#1665
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 mi17516631561690(Top 87%)628(Top 79%)151(Top 84%)
10K6.21 mi3.10 mi1577+174574+89141+151381(Top 71%)471(Top 60%)121(Top 67%)
15K9.32 mi3.11 mi1640-63605-31148-71690(Top 87%)628(Top 79%)151(Top 84%)
20K12.43 mi3.11 mi1651-11612-71481687(Top 87%)643(Top 81%)156(Top 87%)
Half13.10 mi0.67 mi1634+17604+8147+11426(Top 73%)510(Top 64%)133(Top 74%)
25K15.53 mi2.43 mi1615+19595+9146+11517(Top 78%)566(Top 72%)141(Top 78%)
30K18.64 mi3.11 mi1648-33618-23151-51705(Top 87%)669(Top 85%)159(Top 88%)
35K21.75 mi3.11 mi1657-9628-10153-21700(Top 87%)675(Top 85%)159(Top 88%)
25.2M25.20 mi3.45 mi1668-11636-8156-31749(Top 90%)700(Top 88%)166(Top 92%)
Finish26.22 mi1.02 mi1665+3634+21561504(Top 77%)600(Top 76%)154(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×1
+26ft-31ft

Overall

1690

Females

628

F25-29

151

5K→10K

3.1 - 6.2 mi

Top 71%
×2
+38ft-17ft

Overall

1381

Females

471

F25-29

121

10K→15K

6.2 - 9.3 mi

Top 87%
×2
+26ft-44ft

Overall

1690

Females

628

F25-29

151

15K→20K

9.3 - 12.4 mi

Top 87%
×1
+35ft-22ft

Overall

1687

Females

643

F25-29

156

20K→Half

12.4 - 13.1 mi

Top 73%
×1
+7ft-13ft

Overall

1426

Females

510

F25-29

133

Half→25K

13.1 - 15.5 mi

Top 78%
×2
+48ft-19ft

Overall

1517

Females

566

F25-29

141

25K→30K

15.5 - 18.6 mi

Top 87%
×2
+38ft-52ft

Overall

1705

Females

669

F25-29

159

30K→35K

18.6 - 21.8 mi

Top 87%
×2
+39ft-39ft

Overall

1700

Females

675

F25-29

159

35K→25.2M

21.8 - 25.2 mi

Top 90%
×3
+57ft-58ft

Overall

1749

Females

700

F25-29

166

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×1
+17ft-12ft

Overall

1504

Females

600

F25-29

154

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
276
Passed By
190
Net Change
+86
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1751
5K → 10K1751+174#1751#1577
10K → 15K1174-63#1577#1640
15K → 20K617-11#1640#1651
20K → Half170+17#1651#1634
Half → 25K3112+19#1634#1615
25K → 30K1144-33#1615#1648
30K → 35K1524-9#1648#1657
35K → 25.2M718-11#1657#1668
25.2M → Finish30+3#1668#1665
TOTALS276190+86
📊

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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