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SHAMROCK MARATHON 2025

Lisa Welborn

Bib: 2585•F•Age: 52

Ashburn, VA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Masters (Masters Women)
#0 / 277
Age Group (F50-54)
Official
#0 / 46
Calculated (F50-54)
#0 / 46
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
34:07
3.11 mi
Rank: #1539
Start → 5K
34:07 | 10:59/mi
10K
1:08:33
6.21 mi
Rank: #1512 (+27)
5K → 10K
34:26 | 11:05/mi
15K
1:42:32
9.32 mi
Rank: #1483 (+29)
10K → 15K
33:59 | 10:57/mi
20K
2:15:30
12.43 mi
Rank: #1449 (+34)
15K → 20K
32:58 | 10:37/mi
Half
2:23:07
13.10 mi
Rank: #1428 (+21)
20K → Half
7:37 | 11:21/mi
25K
2:49:24
15.53 mi
Rank: #1389 (+39)
Half → 25K
26:17 | 10:48/mi
30K
3:18:58
18.64 mi
Rank: #1341 (+48)
25K → 30K
29:34 | 9:31/mi
35K
3:59:51
21.75 mi
Rank: #1301 (+40)
30K → 35K
40:53 | 13:10/mi
25.2M
4:44:18
25.20 mi
Rank: #1329 (-28)
35K → 25.2M
44:27 | 12:53/mi
Finish
4:56:58
26.22 mi
Rank: #1348 (-19)
25.2M → Finish
12:40 | 12:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:23:07
Pace10:56 /mi
2nd Half
Distance13.12 mi
Time2:33:52
Pace11:44 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:18:1634:0710:5934:07
10:59
-
10K
6.21 mi08:52:421:08:3311:0234:26
11:05
+0:06
15K
9.32 mi09:26:411:42:3211:0133:59
10:57
-0:08
20K
12.43 mi09:59:392:15:3010:5532:58
10:37
-0:20
Half
13.10 mi10:07:162:23:0710:567:37
11:21
+0:44
25K
15.53 mi10:33:332:49:2410:5526:17
10:48
-0:33
30K
18.64 mi11:03:073:18:5810:4129:34
9:31
-1:17
35K
21.75 mi11:44:003:59:5111:0240:53
13:10
+3:39
25.2M
25.20 mi12:28:274:44:1811:1744:27
12:53
-0:17
Finish
26.22 mi12:41:074:56:5811:2112:40
12:26
-0:27

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

9:31 /mi

Average Pace

11:20 /mi

Slowest Pace

13:10 /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

29:34

10% of race

Time at Steady Pace

2:49:24

57% of race

Time at Slower Pace

1:38:00

33% of race

Average Pace: 11:20 /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 mi08:18:1634:0710:5934:07
10:59
#1539
10K
6.21 mi08:52:421:08:3311:0234:26
11:05
#1512
15K
9.32 mi09:26:411:42:3211:0133:59
10:57
#1483
20K
12.43 mi09:59:392:15:3010:5532:58
10:37
#1449
Half
13.10 mi10:07:162:23:0710:567:37
11:21
#1428
25K
15.53 mi10:33:332:49:2410:5526:17
10:48
#1389
30K
18.64 mi11:03:073:18:5810:4129:34
9:31
#1341
35K
21.75 mi11:44:003:59:5111:0240:53
13:10
#1301
25.2M
25.20 mi12:28:274:44:1811:1744:27
12:53
#1329
Finish
26.22 mi12:41:074:56:5811:2112:40
12:26
#1348
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi1539560331457(Top 75%)512(Top 65%)29(Top 63%)
10K6.21 mi3.10 mi1512+27542+1832+11507(Top 77%)538(Top 68%)31(Top 67%)
15K9.32 mi3.11 mi1483+29528+1430+21457(Top 75%)512(Top 65%)29(Top 63%)
20K12.43 mi3.11 mi1449+34511+1729+11335(Top 68%)464(Top 59%)28(Top 61%)
Half13.10 mi0.67 mi1428+21504+7291320(Top 68%)454(Top 57%)26(Top 57%)
25K15.53 mi2.43 mi1389+39488+16291179(Top 60%)390(Top 49%)21(Top 46%)
30K18.64 mi3.11 mi1341+48470+18291110(Top 57%)385(Top 49%)23(Top 50%)
35K21.75 mi3.11 mi1301+40460+1027+21197(Top 61%)451(Top 57%)27(Top 59%)
25.2M25.20 mi3.45 mi1329-28483-2329-21386(Top 71%)547(Top 69%)31(Top 67%)
Finish26.22 mi1.02 mi1348-19490-7291594(Top 82%)635(Top 80%)33(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×1
+26ft-31ft

Overall

1457

Females

512

F50-54

29

5K→10K

3.1 - 6.2 mi

Top 77%
×2
+38ft-17ft

Overall

1507

Females

538

F50-54

31

10K→15K

6.2 - 9.3 mi

Top 75%
×2
+26ft-44ft

Overall

1457

Females

512

F50-54

29

15K→20K

9.3 - 12.4 mi

Top 68%
×1
+35ft-22ft

Overall

1335

Females

464

F50-54

28

20K→Half

12.4 - 13.1 mi

Top 68%
×1
+7ft-13ft

Overall

1320

Females

454

F50-54

26

Half→25K

13.1 - 15.5 mi

Top 60%
×2
+48ft-19ft

Overall

1179

Females

390

F50-54

21

25K→30K

15.5 - 18.6 mi

Top 57%
×2
+38ft-52ft

Overall

1110

Females

385

F50-54

23

30K→35K

18.6 - 21.8 mi

Top 61%
×2
+39ft-39ft

Overall

1197

Females

451

F50-54

27

35K→25.2M

21.8 - 25.2 mi

Top 71%
×3
+57ft-58ft

Overall

1386

Females

547

F50-54

31

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×1
+17ft-12ft

Overall

1594

Females

635

F50-54

33

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
308
Passed By
117
Net Change
+191
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1539
5K → 10K5124+27#1539#1512
10K → 15K367+29#1512#1483
15K → 20K395+34#1483#1449
20K → Half210+21#1449#1428
Half → 25K489+39#1428#1389
25K → 30K513+48#1389#1341
30K → 35K5010+40#1341#1301
35K → 25.2M1139-28#1301#1329
25.2M → Finish120-19#1329#1348
TOTALS308117+191
📊

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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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.

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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management