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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Brent Dramstad

Bib: 643 •M •Age: 21

Arlington, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 43%
Gender (Male)
#0 / 1153
Top 50%
Age Group (M20-24)
Official
#0 / 127
Calculated (M20-24)
#0 / 127
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
26:59
3.11 mi
Rank: #629
Start → 5K
26:59 | 8:42/mi
10K
54:04
6.21 mi
Rank: #632 (-3)
5K → 10K
27:05 | 8:44/mi
15K
1:21:15
9.32 mi
Rank: #636 (-4)
10K → 15K
27:11 | 8:45/mi
20K
1:48:02
12.43 mi
Rank: #620 (+16)
15K → 20K
26:47 | 8:38/mi
Half
1:54:21
13.10 mi
Rank: #614 (+6)
20K → Half
6:19 | 9:25/mi
25K
2:15:58
15.53 mi
Rank: #593 (+21)
Half → 25K
21:37 | 8:53/mi
30K
2:41:42
18.64 mi
Rank: #599 (-6)
25K → 30K
25:44 | 8:17/mi
35K
3:18:17
21.75 mi
Rank: #655 (-56)
30K → 35K
36:35 | 11:47/mi
25.2M
4:06:08
25.20 mi
Rank: #812 (-157)
35K → 25.2M
47:51 | 13:52/mi
Finish
4:17:21
26.22 mi
Rank: #836 (-24)
25.2M → Finish
11:13 | 11:01/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:54:21
Pace8:44 /mi
2nd Half
Distance13.12 mi
Time2:23:00
Pace10:54 /mi
📊Positive Split: 25.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:03:0726:598:4226:59
8:42
-
10K
6.21 mi08:30:1254:048:4327:05
8:44
+0:02
15K
9.32 mi08:57:231:21:158:4427:11
8:45
+0:01
20K
12.43 mi09:24:101:48:028:4226:47
8:38
-0:07
Half
13.10 mi09:30:291:54:218:446:19
9:25
+0:47
25K
15.53 mi09:52:062:15:588:4621:37
8:53
-0:32
30K
18.64 mi10:17:502:41:428:4125:44
8:17
-0:36
35K
21.75 mi10:54:253:18:179:0836:35
11:47
+3:30
25.2M
25.20 mi11:42:164:06:089:4747:51
13:52
+2:05
Finish
26.22 mi11:53:294:17:219:5011:13
11:01
-2:51

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

8:17 /mi

Average Pace

9:49 /mi

Slowest Pace

13:52 /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

0:00

0% of race

Time at Steady Pace

2:41:42

63% of race

Time at Slower Pace

1:35:39

37% of race

Average Pace: 9:49 /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 mi08:03:0726:598:4226:59
8:42
#629
10K
6.21 mi08:30:1254:048:4327:05
8:44
#632
15K
9.32 mi08:57:231:21:158:4427:11
8:45
#636
20K
12.43 mi09:24:101:48:028:4226:47
8:38
#620
Half
13.10 mi09:30:291:54:218:446:19
9:25
#614
25K
15.53 mi09:52:062:15:588:4621:37
8:53
#593
30K
18.64 mi10:17:502:41:428:4125:44
8:17
#599
35K
21.75 mi10:54:253:18:179:0836:35
11:47
#655
25.2M
25.20 mi11:42:164:06:089:4747:51
13:52
#812
Finish
26.22 mi11:53:294:17:219:5011:13
11:01
#836
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-24Seg. OverallSeg. MalesSeg. M20-24
5K3.11 mi3.11 mi62946350638(Top 33%)471(Top 41%)60(Top 47%)
10K6.21 mi3.10 mi632-3464-157-7636(Top 33%)465(Top 40%)59(Top 46%)
15K9.32 mi3.11 mi636-4465-156+1638(Top 33%)471(Top 41%)60(Top 47%)
20K12.43 mi3.11 mi620+16455+1057-1561(Top 29%)415(Top 36%)53(Top 42%)
Half13.10 mi0.67 mi614+6451+457643(Top 33%)473(Top 41%)60(Top 47%)
25K15.53 mi2.43 mi593+21436+1553+4538(Top 28%)396(Top 34%)53(Top 42%)
30K18.64 mi3.11 mi599-6438-255-2691(Top 35%)490(Top 42%)65(Top 51%)
35K21.75 mi3.11 mi655-56468-3061-6848(Top 44%)555(Top 48%)69(Top 54%)
25.2M25.20 mi3.45 mi812-157563-9568-71586(Top 81%)949(Top 82%)112(Top 88%)
Finish26.22 mi1.02 mi836-24571-869-11293(Top 66%)790(Top 69%)98(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×1
+26ft-31ft

Overall

638

Males

471

M20-24

60

5K→10K

3.1 - 6.2 mi

Top 33%
×2
+38ft-17ft

Overall

636

Males

465

M20-24

59

10K→15K

6.2 - 9.3 mi

Top 33%
×2
+26ft-44ft

Overall

638

Males

471

M20-24

60

15K→20K

9.3 - 12.4 mi

Top 29%
×1
+35ft-22ft

Overall

561

Males

415

M20-24

53

20K→Half

12.4 - 13.1 mi

Top 33%
×1
+7ft-13ft

Overall

643

Males

473

M20-24

60

Half→25K

13.1 - 15.5 mi

Top 28%
×2
+48ft-19ft

Overall

538

Males

396

M20-24

53

25K→30K

15.5 - 18.6 mi

Top 35%
×2
+38ft-52ft

Overall

691

Males

490

M20-24

65

30K→35K

18.6 - 21.8 mi

Top 44%
×2
+39ft-39ft

Overall

848

Males

555

M20-24

69

35K→25.2M

21.8 - 25.2 mi

Top 81%
×3
+57ft-58ft

Overall

1586

Males

949

M20-24

112

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×1
+17ft-12ft

Overall

1293

Males

790

M20-24

98

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
123
Passed By
330
Net Change
-207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#629
5K → 10K2124-3#629#632
10K → 15K1216-4#632#636
15K → 20K193+16#636#620
20K → Half104+6#620#614
Half → 25K298+21#614#593
25K → 30K1420-6#593#599
30K → 35K1268-56#599#655
35K → 25.2M3160-157#655#812
25.2M → Finish327-24#812#836
TOTALS123330-207
📊

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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