All Results|Race Analytics|Course|Contact
SHAMROCK MARATHON 2025

David Wallach

Bib: 1620•M•Age: 29

Norfolk, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M25-29)
#0 / 240
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
25:28
3.11 mi
Rank: #417
Start → 5K
25:28 | 8:12/mi
10K
52:17
6.21 mi
Rank: #490 (-73)
5K → 10K
26:49 | 8:38/mi
15K
1:20:29
9.32 mi
Rank: #581 (-91)
10K → 15K
28:12 | 9:05/mi
20K
1:49:32
12.43 mi
Rank: #671 (-90)
15K → 20K
29:03 | 9:22/mi
Half
1:56:45
13.10 mi
Rank: #705 (-34)
20K → Half
7:13 | 10:46/mi
25K
2:22:47
15.53 mi
Rank: #799 (-94)
Half → 25K
26:02 | 10:42/mi
30K
2:53:55
18.64 mi
Rank: #873 (-74)
25K → 30K
31:08 | 10:02/mi
35K
3:39:20
21.75 mi
Rank: #1008 (-135)
30K → 35K
45:25 | 14:38/mi
25.2M
4:29:33
25.20 mi
Rank: #1144 (-136)
35K → 25.2M
50:13 | 14:33/mi
Finish
4:39:38
26.22 mi
Rank: #1134 (+10)
25.2M → Finish
10:05 | 9:54/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:56:45
Pace8:55 /mi
2nd Half
Distance13.12 mi
Time2:42:54
Pace12:25 /mi
📊Positive Split: 39.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:11:3625:288:1225:28
8:12
-
10K
6.21 mi08:38:2552:178:2526:49
8:38
+0:26
15K
9.32 mi09:06:371:20:298:3928:12
9:05
+0:27
20K
12.43 mi09:35:401:49:328:4929:03
9:22
+0:17
Half
13.10 mi09:42:531:56:458:557:13
10:46
+1:24
25K
15.53 mi10:08:552:22:479:1226:02
10:42
-0:04
30K
18.64 mi10:40:032:53:559:2031:08
10:02
-0:40
35K
21.75 mi11:25:283:39:2010:0645:25
14:38
+4:36
25.2M
25.20 mi12:15:414:29:3310:4250:13
14:33
-0:05
Finish
26.22 mi12:25:464:39:3810:4110:05
9:54
-4:39

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

8:12 /mi

Average Pace

10:40 /mi

Slowest Pace

14:38 /mi

Loading chart...
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

52:17

19% of race

Time at Steady Pace

2:11:43

47% of race

Time at Slower Pace

1:35:38

34% of race

Average Pace: 10:40 /mi

Loading chart...
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 mi08:11:3625:288:1225:28
8:12
#417
10K
6.21 mi08:38:2552:178:2526:49
8:38
#490
15K
9.32 mi09:06:371:20:298:3928:12
9:05
#581
20K
12.43 mi09:35:401:49:328:4929:03
9:22
#671
Half
13.10 mi09:42:531:56:458:557:13
10:46
#705
25K
15.53 mi10:08:552:22:479:1226:02
10:42
#799
30K
18.64 mi10:40:032:53:559:2031:08
10:02
#873
35K
21.75 mi11:25:283:39:2010:0645:25
14:38
#1008
25.2M
25.20 mi12:15:414:29:3310:4250:13
14:33
#1144
Finish
26.22 mi12:25:464:39:3810:4110:05
9:54
#1134
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi41731563809(Top 42%)576(Top 50%)124(Top 52%)
10K6.21 mi3.10 mi490-73371-5681-18572(Top 29%)428(Top 37%)92(Top 38%)
15K9.32 mi3.11 mi581-91433-6296-15809(Top 42%)576(Top 50%)124(Top 52%)
20K12.43 mi3.11 mi671-90491-58102-6896(Top 46%)633(Top 55%)134(Top 56%)
Half13.10 mi0.67 mi705-34515-24105-31118(Top 57%)758(Top 66%)159(Top 66%)
25K15.53 mi2.43 mi799-94575-60118-131140(Top 58%)765(Top 66%)159(Top 66%)
30K18.64 mi3.11 mi873-74619-44132-141261(Top 65%)801(Top 69%)162(Top 68%)
35K21.75 mi3.11 mi1008-135680-61143-111443(Top 74%)877(Top 76%)185(Top 77%)
25.2M25.20 mi3.45 mi1144-136748-68153-101679(Top 86%)1006(Top 87%)211(Top 88%)
Finish26.22 mi1.02 mi1134+10743+5152+1918(Top 47%)577(Top 50%)123(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×1
+26ft-31ft

Overall

809

Males

576

M25-29

124

5K→10K

3.1 - 6.2 mi

Top 29%
×2
+38ft-17ft

Overall

572

Males

428

M25-29

92

10K→15K

6.2 - 9.3 mi

Top 42%
×2
+26ft-44ft

Overall

809

Males

576

M25-29

124

15K→20K

9.3 - 12.4 mi

Top 46%
×1
+35ft-22ft

Overall

896

Males

633

M25-29

134

20K→Half

12.4 - 13.1 mi

Top 57%
×1
+7ft-13ft

Overall

1118

Males

758

M25-29

159

Half→25K

13.1 - 15.5 mi

Top 58%
×2
+48ft-19ft

Overall

1140

Males

765

M25-29

159

25K→30K

15.5 - 18.6 mi

Top 65%
×2
+38ft-52ft

Overall

1261

Males

801

M25-29

162

30K→35K

18.6 - 21.8 mi

Top 74%
×2
+39ft-39ft

Overall

1443

Males

877

M25-29

185

35K→25.2M

21.8 - 25.2 mi

Top 86%
×3
+57ft-58ft

Overall

1679

Males

1006

M25-29

211

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×1
+17ft-12ft

Overall

918

Males

577

M25-29

123

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
28
Passed By
745
Net Change
-717
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#417
5K → 10K073-73#417#490
10K → 15K091-91#490#581
15K → 20K292-90#581#671
20K → Half337-34#671#705
Half → 25K094-94#705#799
25K → 30K377-74#799#873
30K → 35K7142-135#873#1008
35K → 25.2M2138-136#1008#1144
25.2M → Finish111+10#1144#1134
TOTALS28745-717
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

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
Loading certificate...

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
Share Feedback

Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management